Tag Archives: cnc drilling machine

China wholesaler Beam Profile Drilling CNC Machinery CNC H Beam Marking Drilling Machine for Indonesia Bridge Steel Structures with Best Sales

Product Description

Beam Profile Drilling CNC Machinery CNC H Beam Marking Drilling Machine for Indonesia bridge steel structure

Introduction&Application:

   The machine is mainly used for processing holes on H-beam, Channel beam with Angle beam and plate drilling and marking processing, high speed, the positioning, feeding of 3 spindles are all driven by servo motor. It adopts spindle servo motor, controls by YOKOGAWA PLC., and in-feeding by CNC carriage, high efficiency, and high precision; and it is wildly used in construction, bridge and tower mast & rack, with other industries.
  The main advantage of high speed CNC drilling SWZ1250H, it’s high speed drilling, rotation speed can reach 3000rpm.
  Due to SWZ1250H using the carbide drill bits, single hole processing efficiency increased to more than 5 times than the normal speed machine, the overall production efficiency more than 2 times than the normal machine.
  For example: 22 mm diameter, thickness 20 mm workpiece, SWZ series drilling 1 hole need about 30 seconds, SWZ1250H series can be controlled within 5 seconds. 

Machine feature: 

     1), The whole machine is optimized integrated design, with high quality machine body and drilling units, which ensure high stability and high rigidity when high speed drilling. This machine is mainly composed of main machine, CNC sliding table (3), drilling spindle box (3), clamping device, detection device, cooling system, scrap box, hydraulic station, lubrication system, Tool Magazine(optional), marking unit (optional).
    2), The main machine is welded by square pipe. The structure of main machine is strengthened where the stress is greater. After welding, artificial aging treatment was carried out. All these ensure the stability of the main machine and then ensure accuracy of the whole machine.
    3), There are 3 CNC sliding tables: fixed side CNC sliding table, movable side CNC sliding table and intermediate CNC sliding table. The 3 sliding tables are similar in structure and are composed of sliding plate, sliding table and servo drive system.
    4), There are 6 CNC axes on the 3 sliding tables, including 3 feeding CNC axes and 3 positioning CNC axes. Each CNC axle is guided by precise linear rolling guide, driven by AC servo motor and ball screw, which ensures positioning accuracy.
    5), There are 3 spindle boxes,  which are mounted on 3 NC sliding tables for horizontal and vertical drilling. Each drilling spindle box can drill both separately and simultaneously.
    6), Used high-speed precision spindle from ZheJiang ‘s well-known brand, model BT, which can meet the using demand of both hard alloy and high-speed steel drill. Every CNC axes are guided by the heavy loading roller linear guide, driven by the servo motor and roller screw which ensure the rigidity and positional accuracy. 
   7). Also equips with hydraulic tool cylinder, using hydraulic -disc spring to do automatic tool de-clamping, tool pulling, with tool status monitoring device to check the tool clamping and effective safety co-locking protection device. Easy to change tools. The spindle is driven by spindle servo and timing belt, reducing ratio i=2 , spindle speed is 0~3000r/min, large rotation speed range.
   8), The workpiece is fixed by hydraulic clamping method. There are 5 hydraulic cylinders, which are clamped horizontally and vertically. Horizontal clamping consists of fixed side datum and moving side clamping, fixed side datum is fixed, moving side clamping is driven by large cylinder sliding table, guided by linear CZPT rail, moving towards the fixed side to clamp the workpiece horizontally; vertical clamping is on both fixed side and moving side, and each cylinder drives the pressure bar to move up and down in 4 positions. The workpiece is clamped vertically.
    9), The machine is fed by a NC carriage. The NC carriage is decelerated by the servo motor through the reducer and then passes through the gear rack to driven a laser alignment device. When the workpiece is fed in, the workpiece can be detected and then fed back to realize the precise positioning of the workpiece.
   10), Cooling system: using air-fog cooling, with the internal and external cooling. Each drilling spindle box is equipped with its own external cooling nozzle and internal cooling joint, which can be selected according to the needs of drilling holes. Internal and external cooling can be used independently or simultaneously.
   11), Chip collecting box: Universal caster guide, easy to carry.
   12), The hydraulic system is for auto tool device of ram type drilling box,Horizontal clamping, vertical clamping, side pushing and power raceway, unified oil supply; all the hydraulic units are from imported brands or joint venture companies, for easy maintenance and solving oil leaking, all the design adopts accumulative valves.If marking unit is equipped, there is also an independent hydraulic station for marking unit action.
   13), Machine equips with auto lubrication system, automatic pump the lubrication oil into and do fully lubrication for each and every part of linear guide, ball screw nuts and every rolling bearings etc at regular time, no need manual lubrication, increase the parts life and save time. All the lubrication pump and units are using famous brands. 
  14), Tool Magazine(optional):Installed 3 inline type tool magazine, which realize the automatic tool change, also meet the demand of drilling multiple diameter’s hole. Oil spray and air spray cooling, has inner cooling and outer cooling efficacy.
  15), Marking unit(optional): The marking unit adopts the disc typing structure, 0-9, A-Z, 36 characters are distributed on the disc, and the position is selected by the servo motor.
  16), The control system is FACTORY PLC. Strong anti-interference, high precision, because of the digital communication, thus overcome the defect of easy be interference in traditional pulse analog transmission.
  17), In order to ensure the accuracy, reliability and stability of transmission system, electrical system, hydraulic system, all the key components are from international famous brand.

Three BT40 Drilling Spindles (Top, Left and Right) with drilling function
Marking Unit and function:
Workpiece Sample with hole groupMain Specification:

Model XT-SWZ1250
Workpiece size H Beam Web x Flange (mm) 150×80~1250×600
U Beam WebxFlange (mm) 150×80~1250×400
Box Beam WebxFlange (mm) 150×80~1250×400
Angle Beam WebxFlange (mm) 200x200x16
  Max. Thickness(mm) ≤80
Max. material length(mm) 12000
Short material limiting mm Automatic processing≥3000
Manual processing: 690~3000
Spindle Spindle Axis 3
Spindle taper BT40
Spindle rotation speed(r/min)
Stepless speed regulation		 200~3000
Max. hole diameter(mm) Fixed Side, 
Moving Side		 Φ40(High Speed)
Intermediate Unit
Center line movement scope(mm) Center slide table/
Horizontal direction		 50~1450
Fixed side/movement side
Vertical direction		 30~770
3 Positioning CNC axis moving speed m/min 0-10m/min
3 feed CNC axis moving speed m/min 0-5m/min
Web width detection stroke mm 1100
Web height detection stroke mm 290
Motor power Spindle motor power (KW) 3*11
Servo motor power of 3 Pcs feeding Axis(KW) 3*2
Servo motor power of 3 Positioning Axis (KW) 3*1.5
Feeding Trolley Feeding trolley servo motor(KW) 5
Maximum feeding speed(m/min) 20m/min
Maximum feeding weight(Tonnes) 10T
Control system CNC System Japan YOKOGAWA PLC
CNC Axis Quantity 7
Hydraulic system Max. Hydraulic Pressure (MPa) 7.5
Motor power(KW) 5.5
Cooling system No. of  Nozzle 3
Pressure of compressed air (Mpa) ≥0.5
Cooling way Internal Cooling & External Cooling
Tool Magazine(optional) Tool Magazine Quantity 3
Tools quantity for each Magazine 4 Pieces
Marking unit(optional) No. of Characters 36 Characters
Characters Size Φ10 mm
Imprinting Depth 0.8~1.5mm
Position servo motor(KW) 0.75
Working environment Working power Three phase 4 wire system 380±10%V, 50HZ
Control power 220±10%V 50HZ
Operate power 24V DC
Working temperature 0ºC ~ 40ºC
Humidity of environment ≤75%
Overall dimension(L×W×H)(mm) About 6000×2100×3400
Main Machine weight (Kg) About 8000

List of the Key Outsourced Components:

NO. Name Manufacturer
Main Electric Component
1 Control system Japan FACTORY PLC
2 Servo Motor Japan Panasonic
3 Servo Driver Japan Panasonic
4 Spindle motor Brand of China
5 Computer Lenovo China
6 Rotary encoder Weidmuller
7 Proximity Switch Normal Open Brand of china
Normal Close
8 Proximity switch Brand of china
9 Photoelectric Switch Germany SICK
Main Hydraulic Pressure Components
1 Hydraulic valves(Main) Italy ATOS
Main Mechanical Components
1 Ball screw ZheJiang
2 Linear guide ZheJiang
3 Precision spindle ZheJiang
Other components
1 Spraying cooling pump ARXIHU (WEST LAKE) DIS.NE
2 Nozzle BIJUR
3 Pneumatic 2 couplet AirTac
4 Cylinder AirTac

   Note: The above parts are supplied by our Approved Suppliers. If encounter special situation, we will take replace with same or higher quality level parts.

Applicable Industry:
    The machine tool is mainly used for drilling H-shaped steel, channel steel and other workpieces, and is widely used in construction, bridges and other industries.

Company Introduction:
    ZheZheJiang nshine CNC is always focusing on our ultimate goal – to secure and increase our customer’s productivity – has made us the leader in China market in the manufacture of machines for processing angle bar, beam channel profiles, steel plates, tubesheet and flanges, mainly serving for fabricating iron towers, steel structure, heat exchangers, boilers, bridges, and trucks.Strong R & D center with more than 10 engineers team, 25 years of experience from year 1996, more than 100 staff, plant area about 25,000 sqm., very harsh quality control of every component and the whole machine, about 12 million US dollars sales turnover per year.
     
     Sunshine CNC machines’ market share in China is around 70% and exported to 50+ countries across globe market. All top ranked tower manufacturers, steel structure fabricators and power station makers, bridge/railway manufacturers, truck makers are our clients.
   
    Main products: CNC Angle Line, CNC Beam Drilling Sawing Machine, CNC Plate Drilling Machine, CNC Rail Processing Machine, CNC Tubesheet Flange Drilling Machine, Truck beam plate punching machine, etc. 

    One measure of the outstanding quality of our machines is their longevity: many Sunshine’s machines have been in operation for more than 10 years! Many clients are continually placing repeated orders which verified well our machines’ perfect quality and reliable performance.

     The company drafted many China national standards for CNC angle line machine and CNC beam drilling sawing machine and CNC plate drilling machine.
Relevant Certificate:

  After-sales Service:
  Training for installation and service:

  A. We will supply the machine with training video and user’s manual in English for installing, operation, maintenance and trouble-shooting, and shall give technical CZPT by e-mail, , Wechat, telephone/MSN/ICQ and so on, when you meet some problems of installation, using or adjusting.
 

  B. You can come to our factory for inspection and training. We will provide professional guide. Direct and effective face-to-face training. Here we have assembled equipment, all sorts of tools and testing facility,we will also provide accommodation during training period.

  C.The Strong after–sale service team in China, Our engineers (staffs) can speak fluent English to communicate and solve question when you have requirement calendar day per person.

  D. Depending on the region, If need our engineer to visit for installation, we will dispatch engineer for installation and service at your site.

 
  Warranty:

   The guarantee period of quality shall be 12 months counting from the date on which the machine finished installation and accept by Buyer. We are responsible for providing the free of charge during the guarantee period. If out of guarantee time, all damaged parts are charged.

  Packaging of interntaional standard way 

  FAQ:
   1. When can you arrange shipment?
    For machines available in stock, the shipment can be arranged within 15 days after getting advance payment or L/C;
    For machines non available in stock, the shipment can be arranged with 60 days after getting advance payment or L/C.

    2. What can you do if my machines have problems?
    1) We can send you free components if machines are in warranty period;
    2) 24 hours service on line;
    3) We can assign our engineers to serve you if you want.

    3. Do you provide machine operation training?
     Yes. We can send professional engineers to the working site for machine’s installation, commissioning and operation training.

    4. Which machine model shall I choose when I purchase from you?
    Please share us your material size and your processing request, then we will recommend our machine most suitable and most cost effective for your work demand.

   5. What’s your machine’s market share in China?
   Our market share in China is about 70%+, and we’ve exported to 50+ countries across the globe market, since year 1996.

If you have an questions, pls call us without hesitation. Thanks! 

Best Regards 
Jack-Director 

  
 

 

The Functions of Splined Shaft Bearings

Splined shafts are the most common types of bearings for machine tools. They are made of a wide variety of materials, including metals and non-metals such as Delrin and nylon. They are often fabricated to reduce deflection. The tooth profile will become deformed with time, as the shaft is used over a long period of time. Splined shafts are available in a huge range of materials and lengths.

Functions

Splined shafts are used in a variety of applications and industries. They are an effective anti-rotational device, as well as a reliable means of transmitting torque. Other types of shafts are available, including key shafts, but splines are the most convenient for transmitting torque. The following article discusses the functions of splines and why they are a superior choice. Listed below are a few examples of applications and industries in which splines are used.
Splined shafts can be of several styles, depending on the application and mechanical system in question. The differences between splined shaft styles include the design of teeth, overall strength, transfer of rotational concentricity, sliding ability, and misalignment tolerance. Listed below are a few examples of splines, as well as some of their benefits. The difference between these styles is not mutually exclusive; instead, each style has a distinct set of pros and cons.
A splined shaft is a cylindrical shaft with teeth or ridges that correspond to a specific angular position. This allows a shaft to transfer torque while maintaining angular correspondence between tracks. A splined shaft is defined as a cylindrical member with several grooves cut into its circumference. These grooves are equally spaced around the shaft and form a series of projecting keys. These features give the shaft a rounded appearance and allow it to fit perfectly into a grooved cylindrical member.
While the most common applications of splines are for shortening or extending shafts, they can also be used to secure mechanical assemblies. An “involute spline” spline has a groove that is wider than its counterparts. The result is that a splined shaft will resist separation during operation. They are an ideal choice for applications where deflection is an issue.
A spline shaft’s radial torsion load distribution is equally distributed, unless a bevel gear is used. The radial torsion load is evenly distributed and will not exert significant load concentration. If the spline couplings are not aligned correctly, the spline connection can fail quickly, causing significant fretting fatigue and wear. A couple of papers discuss this issue in more detail.
splineshaft

Types

There are many different types of splined shafts. Each type features an evenly spaced helix of grooves on its outer surface. These grooves are either parallel or involute. Their shape allows them to be paired with gears and interchange rotary and linear motion. Splines are often cold-rolled or cut. The latter has increased strength compared to cut spines. These types of shafts are commonly used in applications requiring high strength, accuracy, and smoothness.
Another difference between internal and external splined shafts lies in the manufacturing process. The former is made of wood, while the latter is made of steel or a metal alloy. The process of manufacturing splined shafts involves cutting furrows into the surface of the material. Both processes are expensive and require expert skill. The main advantage of splined shafts is their adaptability to a wide range of applications.
In general, splined shafts are used in machinery where the rotation is transferred to an internal splined member. This member can be a gear or some other rotary device. These types of shafts are often packaged together as a hub assembly. Cleaning and lubricating are essential to the life of these components. If you’re using them on a daily basis, you’ll want to make sure to regularly inspect them.
Crowned splines are usually involute. The teeth of these splines form a spiral pattern. They are used for smaller diameter shafts because they add strength. Involute splines are also used on instrument drives and valve shafts. Serration standards are found in the SAE. Both kinds of splines can also contain a ball bearing for high torque. The difference between the 2 types of splines is the number of teeth on the shaft.
Internal splines have many advantages over external ones. For example, an internal spline shaft can be made using a grinding wheel instead of a CNC machine. It also uses a more accurate and economical process. Furthermore, it allows for a shorter manufacturing cycle, which is essential when splining high-speed machines. In addition, it stabilizes the relative phase between the spline and thread.
splineshaft

Manufacturing methods

There are several methods used to fabricate a splined shaft. Key and splined shafts are constructed from 2 separate parts that are shaped in a synchronized manner to transfer torque uniformly. Hot rolling is 1 method, while cold rolling utilizes low temperatures to form metal. Both methods enhance mechanical properties, surface finishes, and precision. The advantage of cold rolling is its cost-effectiveness.
Cold forming is 1 method, as well as machining and assembling. Cold forming is a unique process that allows the spline to be shaped to the desired shape. The resulting shape provides maximum contact area and torsional strength. Standard splines are available in standard sizes, but custom lengths can also be ordered. CZPT offers various auxiliary equipment, such as mating sleeves and flanged bushings.
Cold forging is another method. This method produces long splined shafts that are used in automobile propellers. After the spline portion is cut out, it is worked on in a hobbing machine. Work hardening enhances the root strength of the splined portion. It can be used for bearings, gears, and other mechanical components. Listed below are the manufacturing methods for splined shafts.
Parallel splines are the simplest of the splined shaft manufacturing methods. Parallel splines are usually welded to shafts, while involute splines are made of metal or non-metals. Splines are available in a wide variety of lengths and materials. The process is usually accompanied by a process called milling. The workpiece rotates to produce the serrated surface.
Splines are internal or external grooves in a splined shaft. They work in combination with keyways to transfer torque. Male and female splines are used in gears. Female and male splines correspond to 1 another to ensure proper angular correspondence. Involute splines have more surface area and thus are stronger than external splines. Moreover, they help the shaft fit into a grooved cylindrical member without misalignment.
A variety of other methods of manufacturing a splined shaft can be used to produce a splined shaft. Spline shafts can be produced using broaching and shaping, 2 precision machining methods. Broaching uses a metal tool with successively larger teeth to remove metal and create ridges and holes in the surface of a material. However, this process is expensive and requires special expertise.
splineshaft

Applications

The splined shaft is a mechanical component with a helix-like shape formed by the equal spacing of grooves in a circular ring. The splines can either have parallel or involute sides. The splines minimize stress concentration in stationary joints and can be used in both rotary and linear motion. In some cases, splines are rolled rather than cut. The latter is more durable than cut splines and is often used in applications requiring high strength, accuracy, and smooth finish.
Splined shafts are commonly made of carbon steel. This alloy steel has a low carbon content, making it easy to work with. Carbon steel is a great choice for splines because it is malleable. Generally, high-quality carbon steel provides a consistent motion. Steel alloys are also available that contain nickel, chromium, copper, and other metals. If you’re unsure of the right material for your application, you can consult a spline chart.
Splines are a versatile mechanical component. They are easy to cut and fit. Splines can be internal or external, with teeth positioned at equal intervals on both sides of the shaft. This allows the shaft to engage with the hub around the entire circumference of the hub. It also increases load capacity by creating a constant multiple-tooth point of contact with the hub. For this reason, they’re used extensively in rotary and linear motion.
Splined shafts are used in a wide variety of industries. CZPT Inc. offers custom and standard splined shafts for a variety of applications. When choosing a splined shaft for a specific application, consider the surrounding mated components, torque requirements, and size requirements. These 3 factors will make it the ideal choice for your rotary equipment. And you’ll be pleased with the end result!
There are many types of splines and their applications are endless. They transfer torque and angular misalignment between parts, and they also enable the axial rotation of assembled components. Therefore, splines are an essential component of machinery and are used in a wide range of applications. This type of shaft can be found in various types of machines, from household appliances to industrial machinery. So, the next time you’re looking for a splined shaft, make sure you look for a splined one.

China wholesaler Beam Profile Drilling CNC Machinery CNC H Beam Marking Drilling Machine for Indonesia Bridge Steel Structures with Best SalesChina wholesaler Beam Profile Drilling CNC Machinery CNC H Beam Marking Drilling Machine for Indonesia Bridge Steel Structures with Best Sales

China Best Sales CNC Drilling Machine for Window and Door Processing Machinery near me manufacturer

Product Description

 CNC aluminum profile Milling Machine SKX-CNC-1200

Product Description

Feature

1. The machine is used for drilling holes, milling grooves, processing round holes and special-shaped holes,plane engraving of aluminum alloy profiles.

2. Adopted ZheJiang Syntec CNC Control system.

3. Adopted the electric spindle, high precision, high safety and reliability.

4. X axle adopts high precision helical gear and rack, Y and Z axiss adopt high-precision ball screw trassmission, steady transmission and high precision.

5. By using programming software to transform and process G code automatically, easy operation, high efficiency and low labour intensity.

6. workbench can turn 180°,-90°0°+90°, it can realize material three-sides section processing by clamping 1 time, it can process deep and special-shaped holes through workbench turning, high efficiency and precision,

Product Parameters

 

Parameter

 

Air Pressure

0.5~0.6MPa

X/Y/Z Axis stroke

1200mm*300mm*280mm

Input Voltage

380V 50Hz or As Customer need

Input Power

3Kw

Handle type

ER25*Φ8

Processing range

100*140

Overall size

2200×1500×19500mm

Weight

700kg

Main accessory

 

Control system

ZheJiang  Syntec

Solenoid valve

Germany FESTO

Cylinder

PC(FESTO Joint Venture Brand)

Motor

ZheJiang  SHangZhou (Best Chinese Motor Brand)

Air Filter Device

STNC

Electrical Button and Switcher

Schneider

AC Contactor and Circuit Breaker

Schneider

Approach Switch

ZheJiang  Delta

Xihu (West Lake) Dis. rail

ZheJiang  Hiwin

Standard accessory

 

Cutters

4pcs

Air Gun

1pc

Complete tooling

1set

Certificate

1pc

Operation Manual

1pc

Remarks

1. All the electrical elements,Circuit breaker protection and AC contactors are schneider or other world famous brand.

2. International CE standard high flexibility, high shielding cables.

3. Warranty time: 1 year

4. Quotation Valid: 90 days                                                                               

5. Payment terms: 30%T/T as deposit, 70% balance made before shipment by T/T

6. Delivery time: 30 days upon receipt of 30% deposit by T/T         

7. Packaging: Film packaging and fumigation-free wooden case(if delivery by full container load, then without wooden box, just use the tray)

8. After sales service:      

1)24 hours service on Internet and Telephone, free instructions and problem solving  

2) Free training to make sure a master of the operating of cnc router for the person who come to our factory  

3)User-friendly English manual or operating video for machine using and maintaining

4) on-the-spot training, installation and repairing can be met if required.(If so, need the buyer afford the visa and air ticket and 60USD/DAY Salary)
 

Detailed Photos

 

Other machines:

 

 

Stiffness and Torsional Vibration of Spline-Couplings

In this paper, we describe some basic characteristics of spline-coupling and examine its torsional vibration behavior. We also explore the effect of spline misalignment on rotor-spline coupling. These results will assist in the design of improved spline-coupling systems for various applications. The results are presented in Table 1.
splineshaft

Stiffness of spline-coupling

The stiffness of a spline-coupling is a function of the meshing force between the splines in a rotor-spline coupling system and the static vibration displacement. The meshing force depends on the coupling parameters such as the transmitting torque and the spline thickness. It increases nonlinearly with the spline thickness.
A simplified spline-coupling model can be used to evaluate the load distribution of splines under vibration and transient loads. The axle spline sleeve is displaced a z-direction and a resistance moment T is applied to the outer face of the sleeve. This simple model can satisfy a wide range of engineering requirements but may suffer from complex loading conditions. Its asymmetric clearance may affect its engagement behavior and stress distribution patterns.
The results of the simulations show that the maximum vibration acceleration in both Figures 10 and 22 was 3.03 g/s. This results indicate that a misalignment in the circumferential direction increases the instantaneous impact. Asymmetry in the coupling geometry is also found in the meshing. The right-side spline’s teeth mesh tightly while those on the left side are misaligned.
Considering the spline-coupling geometry, a semi-analytical model is used to compute stiffness. This model is a simplified form of a classical spline-coupling model, with submatrices defining the shape and stiffness of the joint. As the design clearance is a known value, the stiffness of a spline-coupling system can be analyzed using the same formula.
The results of the simulations also show that the spline-coupling system can be modeled using MASTA, a high-level commercial CAE tool for transmission analysis. In this case, the spline segments were modeled as a series of spline segments with variable stiffness, which was calculated based on the initial gap between spline teeth. Then, the spline segments were modelled as a series of splines of increasing stiffness, accounting for different manufacturing variations. The resulting analysis of the spline-coupling geometry is compared to those of the finite-element approach.
Despite the high stiffness of a spline-coupling system, the contact status of the contact surfaces often changes. In addition, spline coupling affects the lateral vibration and deformation of the rotor. However, stiffness nonlinearity is not well studied in splined rotors because of the lack of a fully analytical model.
splineshaft

Characteristics of spline-coupling

The study of spline-coupling involves a number of design factors. These include weight, materials, and performance requirements. Weight is particularly important in the aeronautics field. Weight is often an issue for design engineers because materials have varying dimensional stability, weight, and durability. Additionally, space constraints and other configuration restrictions may require the use of spline-couplings in certain applications.
The main parameters to consider for any spline-coupling design are the maximum principal stress, the maldistribution factor, and the maximum tooth-bearing stress. The magnitude of each of these parameters must be smaller than or equal to the external spline diameter, in order to provide stability. The outer diameter of the spline must be at least 4 inches larger than the inner diameter of the spline.
Once the physical design is validated, the spline coupling knowledge base is created. This model is pre-programmed and stores the design parameter signals, including performance and manufacturing constraints. It then compares the parameter values to the design rule signals, and constructs a geometric representation of the spline coupling. A visual model is created from the input signals, and can be manipulated by changing different parameters and specifications.
The stiffness of a spline joint is another important parameter for determining the spline-coupling stiffness. The stiffness distribution of the spline joint affects the rotor’s lateral vibration and deformation. A finite element method is a useful technique for obtaining lateral stiffness of spline joints. This method involves many mesh refinements and requires a high computational cost.
The diameter of the spline-coupling must be large enough to transmit the torque. A spline with a larger diameter may have greater torque-transmitting capacity because it has a smaller circumference. However, the larger diameter of a spline is thinner than the shaft, and the latter may be more suitable if the torque is spread over a greater number of teeth.
Spline-couplings are classified according to their tooth profile along the axial and radial directions. The radial and axial tooth profiles affect the component’s behavior and wear damage. Splines with a crowned tooth profile are prone to angular misalignment. Typically, these spline-couplings are oversized to ensure durability and safety.

Stiffness of spline-coupling in torsional vibration analysis

This article presents a general framework for the study of torsional vibration caused by the stiffness of spline-couplings in aero-engines. It is based on a previous study on spline-couplings. It is characterized by the following 3 factors: bending stiffness, total flexibility, and tangential stiffness. The first criterion is the equivalent diameter of external and internal splines. Both the spline-coupling stiffness and the displacement of splines are evaluated by using the derivative of the total flexibility.
The stiffness of a spline joint can vary based on the distribution of load along the spline. Variables affecting the stiffness of spline joints include the torque level, tooth indexing errors, and misalignment. To explore the effects of these variables, an analytical formula is developed. The method is applicable for various kinds of spline joints, such as splines with multiple components.
Despite the difficulty of calculating spline-coupling stiffness, it is possible to model the contact between the teeth of the shaft and the hub using an analytical approach. This approach helps in determining key magnitudes of coupling operation such as contact peak pressures, reaction moments, and angular momentum. This approach allows for accurate results for spline-couplings and is suitable for both torsional vibration and structural vibration analysis.
The stiffness of spline-coupling is commonly assumed to be rigid in dynamic models. However, various dynamic phenomena associated with spline joints must be captured in high-fidelity drivetrain models. To accomplish this, a general analytical stiffness formulation is proposed based on a semi-analytical spline load distribution model. The resulting stiffness matrix contains radial and tilting stiffness values as well as torsional stiffness. The analysis is further simplified with the blockwise inversion method.
It is essential to consider the torsional vibration of a power transmission system before selecting the coupling. An accurate analysis of torsional vibration is crucial for coupling safety. This article also discusses case studies of spline shaft wear and torsionally-induced failures. The discussion will conclude with the development of a robust and efficient method to simulate these problems in real-life scenarios.
splineshaft

Effect of spline misalignment on rotor-spline coupling

In this study, the effect of spline misalignment in rotor-spline coupling is investigated. The stability boundary and mechanism of rotor instability are analyzed. We find that the meshing force of a misaligned spline coupling increases nonlinearly with spline thickness. The results demonstrate that the misalignment is responsible for the instability of the rotor-spline coupling system.
An intentional spline misalignment is introduced to achieve an interference fit and zero backlash condition. This leads to uneven load distribution among the spline teeth. A further spline misalignment of 50um can result in rotor-spline coupling failure. The maximum tensile root stress shifted to the left under this condition.
Positive spline misalignment increases the gear mesh misalignment. Conversely, negative spline misalignment has no effect. The right-handed spline misalignment is opposite to the helix hand. The high contact area is moved from the center to the left side. In both cases, gear mesh is misaligned due to deflection and tilting of the gear under load.
This variation of the tooth surface is measured as the change in clearance in the transverse plain. The radial and axial clearance values are the same, while the difference between the 2 is less. In addition to the frictional force, the axial clearance of the splines is the same, which increases the gear mesh misalignment. Hence, the same procedure can be used to determine the frictional force of a rotor-spline coupling.
Gear mesh misalignment influences spline-rotor coupling performance. This misalignment changes the distribution of the gear mesh and alters contact and bending stresses. Therefore, it is essential to understand the effects of misalignment in spline couplings. Using a simplified system of helical gear pair, Hong et al. examined the load distribution along the tooth interface of the spline. This misalignment caused the flank contact pattern to change. The misaligned teeth exhibited deflection under load and developed a tilting moment on the gear.
The effect of spline misalignment in rotor-spline couplings is minimized by using a mechanism that reduces backlash. The mechanism comprises cooperably splined male and female members. One member is formed by 2 coaxially aligned splined segments with end surfaces shaped to engage in sliding relationship. The connecting device applies axial loads to these segments, causing them to rotate relative to 1 another.

China Best Sales CNC Drilling Machine for Window and Door Processing Machinery near me manufacturer China Best Sales CNC Drilling Machine for Window and Door Processing Machinery near me manufacturer

China best High Speed CNC H Beam Drilling Machine near me manufacturer

Product Description

TBHD1250 CNC High Speed Beam Drilling Line(Siemens PLC) 
(With Auto Line Scribing Function)
Application:
This machine is mainly used for processing holes on H-beam, channel beam with high speed, the positioning, feeding of 3 spindles are all driven by servo motor. It adopts spindle servo motor, controls by CNC system, and in-feeding by CNC carriage, high efficiency, and high precision; and it is wildly used in construction, bridge and other industries.

Product Feature:

  1. The whole machine is optimized integrated design, with high quality machine body and drilling units, which ensure high stability and high rigidity when high speed drilling. This machine is mainly composed of main machine, CNC sliding table (3), drilling spindle box (3), clamping device, detection device, cooling system, scrap box, hydraulic station, lubrication system, Tool Magazine(optional), marking unit (optional).
  2. The main machine is welded by square pipe. The structure of main machine is strengthened where the stress is greater. After welding, artificial aging treatment was carried out. All these ensure the stability of the main machine and then ensure accuracy of the whole machine.
  3. There are 3 CNC sliding tables: fixed side CNC sliding table, movable side CNC sliding table and intermediate CNC sliding table. The 3 sliding tables are similar in structure and are composed of sliding plate, sliding table and servo drive system.
  4. There are 6 CNC axes on the 3 sliding tables, including 3 feeding CNC axes and 3 positioning CNC axes. Each CNC axle is guided by precise linear rolling guide, driven by AC servo motor and ball screw, which ensures positioning accuracy.
  5. There are 3 spindle boxes, which are mounted on 3 NC sliding tables for horizontal and vertical drilling. Each drilling spindle box can drill both separately and simultaneously.
  6. Used high-speed precision spindle from ZheJiang ‘s well-known brand, model BT, which can meet the using demand of both hard alloy and high-speed steel drill. Every CNC axes are guided by the heavy loading roller linear guide, driven by the servo motor and roller screw which ensure the rigidity and positional accuracy.
  7. Also equips with hydraulic tool cylinder, using hydraulic -disc spring to do automatic tool de-clamping, tool pulling, with tool status monitoring device to check the tool clamping and effective safety co-locking protection device. Easy to change tools. The spindle is driven by spindle servo and timing belt, reducing ratio i=2 , spindle speed is 0~3000r/min, large rotation speed range.
  8. The workpiece is fixed by hydraulic clamping method. There are 5 hydraulic cylinders, which are clamped horizontally and vertically. Horizontal clamping consists of fixed side datum and moving side
  9. clamping, fixed side datum is fixed, moving side clamping is driven by large cylinder sliding table, guided by linear CZPT rail, moving towards the fixed side to clamp the workpiece horizontally; vertical clamping is on both fixed side and moving side, and each cylinder drives the pressure bar to move up and down in 4 positions. The workpiece is clamped vertically.
  10. The machine is fed by a NC carriage. The NC carriage is decelerated by the servo motor through the reducer and then passes through the gear rack to driven a laser alignment device. When the workpiece is fed in, the workpiece can be detected and then fed back to realize the precise positioning of the workpiece.
  11. Cooling system: using air-fog cooling, with the internal and external cooling. Each drilling spindle box is equipped with its own external cooling nozzle and internal cooling joint, which can be selected according to the needs of drilling holes. Internal and external cooling can be used independently or simultaneously.
  12. Chip collecting box: Universal caster guide, easy to carry.
  13. 13. Machine equips with auto lubrication system, automatic pump the lubrication oil into and do fully lubrication for each and every part of linear guide, ball screw nuts and every rolling bearings etc at regular time, no need manual lubrication, increase the parts life and save time. All the lubrication pump and units are using famous brands.
    14. Tool Magazine(optional): Installed 3 inline type tool magazine, which realize the automatic tool change, also meet the demand of drilling multiple diameter’s hole. Oil spray and air spray cooling, has inner cooling and outer cooling efficacy.
    15. Marking unit (optional): The marking unit adopts the disc typing structure, 0-9, A-Z, 36 characters are distributed on the disc, and the position is selected by the servo motor.
    16. The CNC control system is the Siemens PLC. Strong anti-interference, high precision, because of the digital communication, thus overcome the defect of easy be interference in traditional pulse analog transmission.
    17. In order to ensure the accuracy, reliability and stability of transmission system, electrical system, hydraulic system, all the key components are from international famous brand.
    18. This machine has the function of scribing, which can replace the manual work. At the same time of drilling, the position of the plate to be welded in the next process can be marked with the scribing tool, which saves time and effort, and has better precision. The scribing tool is made of Korean cutter, which can be installed on the side fixed handle. The whole set of scribing tool is made of replaceable carbide scribing drill in the center, which is durable. In addition, a set of spring system is specially designed, which can recover the resistance of drill bit when machining uneven surface. hydraulic system is for auto tool device of ram type drilling box,Horizontal clamping, vertical clamping, side pushing and power raceway, unified oil supply; all the hydraulic units are from imported brands or joint venture companies, for easy maintenance and solving oil leaking, all the design adopts accumulative valves.If marking unit is equipped, there is also an independent hydraulic station for marking unit action.
  14. Specifications:
    Model TBHD1250
    Work piece size H beam Web (mm) 150~1250
    Flange (mm) 75~600
    Max. material length(mm) 12000/15000(optional)
    Spindle Quantity 3
    Spindle taper BT40
    Spindle rotation speed(r/min) 0~3000
    Feeding speed(mm/min) 0~5000
    Max. hole diameter(mm) φ40
    Center line movement scope(mm) Center slide table/
    Horizontal direction    		 45~1200
    Fixed side/movement side
    Vertical direction    		 30~570
    Motor power Spindle motor power (kW) 15
    Feeding servo motor(kW) 2
    Position servo motor(kW) 2
    Feeding carriage servo motor(kW) 5
    Control system CNC system Siemens PLC
    CNC axes quantity 7+3
    Hydraulic system Max. Hydraulic Pressure (MPa) 8
    Motor power(kW) 5.5
    Cooling system No. of nozzle 3
    Pressure of compressed air (Mpa) 0.6
    Cooling way Internal cooling & external cooling
    Tool Magazine(optional) Tool Magazine Quantity 3
    Tools quantity for each Magazine 4 pieces
    Marking unit(optional) No. of Characters 36 characters
    Characters Size Φ10 mm
    Imprinting Depth 0.8mm~ 1.5mm
    Position servo motor(kW) 0.75
    Max. Hydraulic Pressure (MPa) 10
    Motor power(kW) 4
    Working environment Working power Three phase 4 wire system 380±10%V, 50HZ
    Control power 220±10%V    50HZ
    Operate power 24V DC
    Working temperature 0ºC ~ 40ºC
    Humidity of environment ≤75%
    Overall dimension(L×W×H)(mm) About 6000×2100×3500
    Main Machine weight (Kg) About 8500

    Main Components List :

    No. Name Manufacturer
    Main Electric Components:
    1 Control system Germany SIEMENS PLC
    2 Servo Motor Germany SIEMENS
    3 Servo Driver Germany SIEMENS
    4 Spindle motor SFC/CTB
    5 Computer Lenovo China
    6 Rotary encoder Japan OMRON
    7 Proximity Switch Normal Open AUTONICS
    Normal Close
    8 Proximity switch Korea AUTONICS
    9 Photoelectric Switch Korea AUTONICS
    10 Low-voltage electrical parts(Switches,Push button,
    Breaker,Indicator light, Contactor switch and so on)    		 Germany SIEMENS
    Main Hydraulic Pressure Components:
    1 Hydraulic valves(Main) Italy ATOS
    Main Mechanical Components:
    1 Ball screw ZheJiang HIWIN /PMI
    2 Linear guide ZheJiang HIWIN/PMI
    3 Precision spindle ZheJiang
    Other components:
    1 Spraying cooling pump ARXIHU (WEST LAKE) DIS.NE
    2 Pneumatic 2 couplet AirTac
    3 Cylinder AirTac

    If any part model is upgraded or changed, we promise to use same quality level part to replace it. Every change will be based on written form, which is agreed by each party.
    Spare Parts List:

    No. Name Model Qty. Remark
    1 Proximity switch Normal open 1 AUTONICS
    2 Proximity switch Normal close 1 AUTONICS
    3 Drill bit (including blade) Φ18, 22, 30 1 for each YESTOOL 
    4 Tools holder BT40-32,300mm 3 MADE IN CHINA
    5 Tools holder BT40xMT4 3 MADE IN CHINA
    6 HSS twist drill ¢18, 22, 40 3 MADE IN CHINA
    7 Pop-rivet BT40, 45°center cooling 3 MADE IN CHINA
    8 Pop-rivet BT40, 45° 3 MADE IN CHINA
    9 Scribing tool (including drill holder)   1 set YESTOOL 
    10 Clam of Tool Magazine   3  
    11 Socket head wrench   1 set  
    12 Adjustable spanner 300mm 1  
    13 Spanner 17-19 1  
    14 Screwdriver – 1  
    15 Screwdriver + 1  
    16 Standby paint Main color, warning color 2  
    17 Air gun   1  
    18 Operation manual   1  

    Model TSWZ TBHD
    Drill bits type Twist drill bits Carbide drill bits
    (Korea YESTOOL tools)    		 Carbide drill bits
    (SANDVIK)
    Line speed (m/min) 25 80 100
    Feed rate (mm/r) 0.22 0.25 0.25
    Rotation speed (r/min) 361 1157 1447
    Feeding speed (mm/min) 80 289 361.75
    Thickness (mm) 20 20 20
    Chip breaking time The chip breaking time accounts for about 20% of the total time Automatic chip breaking, without pause Automatic chip breaking, without pause
    Processing time of 1 hole (s) 30 5.3 4.3
  15. The main advantage of high speed CNC drilling TBHD1250, it’s high speed drilling, rotation speed can reach 3000rpm.
    Due to TBHD1250 using the carbide drill bits, single hole processing efficiency increased to more than 5 times than the normal speed machine, the overall production efficiency more than 2 times than the normal machine. For example: 22 mm diameter, thickness 20 mm workpiece, TSWZ series drilling 1 hole need about 30 seconds, TBHD1250 series can be controlled within 5 seconds.
     
  16.  

  17.  

    Standard Length Splined Shafts

    Standard Length Splined Shafts are made from Mild Steel and are perfect for most repair jobs, custom machinery building, and many other applications. All stock splined shafts are 2-3/4 inches in length, and full splines are available in any length, with additional materials and working lengths available upon request and quotation. CZPT Manufacturing Company is proud to offer these standard length shafts.
    splineshaft

    Disc brake mounting interfaces that are splined

    There are 2 common disc brake mounting interfaces, splined and center lock. Disc brakes with splined interfaces are more common. They are usually easier to install. The center lock system requires a tool to remove the locking ring on the disc hub. Six-bolt rotors are easier to install and require only 6 bolts. The center lock system is commonly used with performance road bikes.
    Post mount disc brakes require a post mount adapter, while flat mount disc brakes do not. Post mount adapters are more common and are used for carbon mountain bikes, while flat mount interfaces are becoming the norm on road and gravel bikes. All disc brake adapters are adjustable for rotor size, though. Road bikes usually use 160mm rotors while mountain bikes use rotors that are 180mm or 200mm.
    splineshaft

    Disc brake mounting interfaces that are helical splined

    A helical splined disc brake mounting interface is designed with a splined connection between the hub and brake disc. This splined connection allows for a relatively large amount of radial and rotational displacement between the disc and hub. A loosely splined interface can cause a rattling noise due to the movement of the disc in relation to the hub.
    The splines on the brake disc and hub are connected via an air gap. The air gap helps reduce heat conduction from the brake disc to the hub. The present invention addresses problems of noise, heat, and retraction of brake discs at the release of the brake. It also addresses issues with skewing and dragging. If you’re unsure whether this type of mounting interface is right for you, consult your mechanic.
    Disc brake mounting interfaces that are helix-splined may be used in conjunction with other components of a wheel. They are particularly useful in disc brake mounting interfaces for hub-to-hub assemblies. The spacer elements, which are preferably located circumferentially, provide substantially the same function no matter how the brake disc rotates. Preferably, 3 spacer elements are located around the brake disc. Each of these spacer elements has equal clearance between the splines of the brake disc and the hub.
    Spacer elements 6 include a helical spring portion 6.1 and extensions in tangential directions that terminate in hooks 6.4. These hooks abut against the brake disc 1 in both directions. The helical spring portion 5.1 and 6.1 have stiffness enough to absorb radial impacts. The spacer elements are arranged around the circumference of the intermeshing zone.
    A helical splined disc mount includes a stabilizing element formed as a helical spring. The helical spring extends to the disc’s splines and teeth. The ends of the extension extend in opposite directions, while brackets at each end engage with the disc’s splines and teeth. This stabilizing element is positioned axially over the disc’s width.
    Helical splined disc brake mounting interfaces are popular in bicycles and road bicycles. They’re a reliable, durable way to mount your brakes. Splines are widely used in aerospace, and have a higher fatigue life and reliability. The interfaces between the splined disc brake and BB spindle are made from aluminum and acetate.
    As the splined hub mounts the disc in a helical fashion, the spring wire and disc 2 will be positioned in close contact. As the spring wire contacts the disc, it creates friction forces that are evenly distributed throughout the disc. This allows for a wide range of axial motion. Disc brake mounting interfaces that are helical splined have higher strength and stiffness than their counterparts.
    Disc brake mounting interfaces that are helically splined can have a wide range of splined surfaces. The splined surfaces are the most common type of disc brake mounting interfaces. They are typically made of stainless steel or aluminum and can be used for a variety of applications. However, a splined disc mount will not support a disc with an oversized brake caliper.

    China best High Speed CNC H Beam Drilling Machine near me manufacturer China best High Speed CNC H Beam Drilling Machine near me manufacturer

    China Custom CNC Drilling Milling Machine for Aluminum Profile with high quality

    Product Description

     CNC aluminum profile Milling Machine SKX-CNC-500

    Feature

    1. The machine is used for drilling holes, milling grooves, processing round holes and special-shaped holes,plane engraving of aluminum alloy profiles.

    2. Adopted ZheJiang Syntec CNC Control system.

    3. Adopted the electric spindle, high precision, high safety and reliability.

    4. X axle adopts high precision helical gear and rack, Y and Z axiss adopt high-precision ball screw trassmission, steady transmission and high precision.

    5. By using programming software to transform and process G code automatically, easy operation, high efficiency and low labour intensity.

    6. workbench can turn 180°,-90°0°+90°, it can realize material three-sides section processing by clamping 1 time, it can process deep and special-shaped holes through workbench turning, high efficiency and precision,

    Parameter

     

    Air Pressure

    0.5~0.6MPa

    X/Y/Z Axis stroke

    500mm*300mm*280mm

    Input Voltage

    380V 50Hz or As Customer need

    Input Power

    3Kw

    Handle type

    ER25*Φ8

    Processing range

    100*140

    Overall size

    2200×1500×19500mm

    Weight

    700kg

    Main accessory

     

    Control system

    ZheJiang  Syntec

    Solenoid valve

    Germany FESTO

    Cylinder

    PC(FESTO Joint Venture Brand)

    Motor

    ZheJiang  SHangZhou (Best Chinese Motor Brand)

    Air Filter Device

    STNC

    Electrical Button and Switcher

    Schneider

    AC Contactor and Circuit Breaker

    Schneider

    Approach Switch

    ZheJiang  Delta

    Xihu (West Lake) Dis. rail

    ZheJiang  Hiwin

    Standard accessory

     

    Cutters

    4pcs

    Air Gun

    1pc

    Complete tooling

    1set

    Certificate

    1pc

    Operation Manual

    1pc

    Remarks

    1. All the electrical elements,Circuit breaker protection and AC contactors are schneider or other world famous brand.

    2. International CE standard high flexibility, high shielding cables.

    3. Warranty time: 1 year

    4. Quotation Valid: 90 days                                                                               

    5. Payment terms: 30%T/T as deposit, 70% balance made before shipment by T/T

    6. Delivery time: 30 days upon receipt of 30% deposit by T/T         

    7. Packaging: Film packaging and fumigation-free wooden case(if delivery by full container load, then without wooden box, just use the tray)

    8. After sales service:      

    1)24 hours service on Internet and Telephone, free instructions and problem solving  

    2) Free training to make sure a master of the operating of cnc router for the person who come to our factory  

    3)User-friendly English manual or operating video for machine using and maintaining

    4) on-the-spot training, installation and repairing can be met if required.(If so, need the buyer afford the visa and air ticket and 60USD/DAY Salary)

    Other machines:

     

    Stiffness and Torsional Vibration of Spline-Couplings

    In this paper, we describe some basic characteristics of spline-coupling and examine its torsional vibration behavior. We also explore the effect of spline misalignment on rotor-spline coupling. These results will assist in the design of improved spline-coupling systems for various applications. The results are presented in Table 1.
    splineshaft

    Stiffness of spline-coupling

    The stiffness of a spline-coupling is a function of the meshing force between the splines in a rotor-spline coupling system and the static vibration displacement. The meshing force depends on the coupling parameters such as the transmitting torque and the spline thickness. It increases nonlinearly with the spline thickness.
    A simplified spline-coupling model can be used to evaluate the load distribution of splines under vibration and transient loads. The axle spline sleeve is displaced a z-direction and a resistance moment T is applied to the outer face of the sleeve. This simple model can satisfy a wide range of engineering requirements but may suffer from complex loading conditions. Its asymmetric clearance may affect its engagement behavior and stress distribution patterns.
    The results of the simulations show that the maximum vibration acceleration in both Figures 10 and 22 was 3.03 g/s. This results indicate that a misalignment in the circumferential direction increases the instantaneous impact. Asymmetry in the coupling geometry is also found in the meshing. The right-side spline’s teeth mesh tightly while those on the left side are misaligned.
    Considering the spline-coupling geometry, a semi-analytical model is used to compute stiffness. This model is a simplified form of a classical spline-coupling model, with submatrices defining the shape and stiffness of the joint. As the design clearance is a known value, the stiffness of a spline-coupling system can be analyzed using the same formula.
    The results of the simulations also show that the spline-coupling system can be modeled using MASTA, a high-level commercial CAE tool for transmission analysis. In this case, the spline segments were modeled as a series of spline segments with variable stiffness, which was calculated based on the initial gap between spline teeth. Then, the spline segments were modelled as a series of splines of increasing stiffness, accounting for different manufacturing variations. The resulting analysis of the spline-coupling geometry is compared to those of the finite-element approach.
    Despite the high stiffness of a spline-coupling system, the contact status of the contact surfaces often changes. In addition, spline coupling affects the lateral vibration and deformation of the rotor. However, stiffness nonlinearity is not well studied in splined rotors because of the lack of a fully analytical model.
    splineshaft

    Characteristics of spline-coupling

    The study of spline-coupling involves a number of design factors. These include weight, materials, and performance requirements. Weight is particularly important in the aeronautics field. Weight is often an issue for design engineers because materials have varying dimensional stability, weight, and durability. Additionally, space constraints and other configuration restrictions may require the use of spline-couplings in certain applications.
    The main parameters to consider for any spline-coupling design are the maximum principal stress, the maldistribution factor, and the maximum tooth-bearing stress. The magnitude of each of these parameters must be smaller than or equal to the external spline diameter, in order to provide stability. The outer diameter of the spline must be at least 4 inches larger than the inner diameter of the spline.
    Once the physical design is validated, the spline coupling knowledge base is created. This model is pre-programmed and stores the design parameter signals, including performance and manufacturing constraints. It then compares the parameter values to the design rule signals, and constructs a geometric representation of the spline coupling. A visual model is created from the input signals, and can be manipulated by changing different parameters and specifications.
    The stiffness of a spline joint is another important parameter for determining the spline-coupling stiffness. The stiffness distribution of the spline joint affects the rotor’s lateral vibration and deformation. A finite element method is a useful technique for obtaining lateral stiffness of spline joints. This method involves many mesh refinements and requires a high computational cost.
    The diameter of the spline-coupling must be large enough to transmit the torque. A spline with a larger diameter may have greater torque-transmitting capacity because it has a smaller circumference. However, the larger diameter of a spline is thinner than the shaft, and the latter may be more suitable if the torque is spread over a greater number of teeth.
    Spline-couplings are classified according to their tooth profile along the axial and radial directions. The radial and axial tooth profiles affect the component’s behavior and wear damage. Splines with a crowned tooth profile are prone to angular misalignment. Typically, these spline-couplings are oversized to ensure durability and safety.

    Stiffness of spline-coupling in torsional vibration analysis

    This article presents a general framework for the study of torsional vibration caused by the stiffness of spline-couplings in aero-engines. It is based on a previous study on spline-couplings. It is characterized by the following 3 factors: bending stiffness, total flexibility, and tangential stiffness. The first criterion is the equivalent diameter of external and internal splines. Both the spline-coupling stiffness and the displacement of splines are evaluated by using the derivative of the total flexibility.
    The stiffness of a spline joint can vary based on the distribution of load along the spline. Variables affecting the stiffness of spline joints include the torque level, tooth indexing errors, and misalignment. To explore the effects of these variables, an analytical formula is developed. The method is applicable for various kinds of spline joints, such as splines with multiple components.
    Despite the difficulty of calculating spline-coupling stiffness, it is possible to model the contact between the teeth of the shaft and the hub using an analytical approach. This approach helps in determining key magnitudes of coupling operation such as contact peak pressures, reaction moments, and angular momentum. This approach allows for accurate results for spline-couplings and is suitable for both torsional vibration and structural vibration analysis.
    The stiffness of spline-coupling is commonly assumed to be rigid in dynamic models. However, various dynamic phenomena associated with spline joints must be captured in high-fidelity drivetrain models. To accomplish this, a general analytical stiffness formulation is proposed based on a semi-analytical spline load distribution model. The resulting stiffness matrix contains radial and tilting stiffness values as well as torsional stiffness. The analysis is further simplified with the blockwise inversion method.
    It is essential to consider the torsional vibration of a power transmission system before selecting the coupling. An accurate analysis of torsional vibration is crucial for coupling safety. This article also discusses case studies of spline shaft wear and torsionally-induced failures. The discussion will conclude with the development of a robust and efficient method to simulate these problems in real-life scenarios.
    splineshaft

    Effect of spline misalignment on rotor-spline coupling

    In this study, the effect of spline misalignment in rotor-spline coupling is investigated. The stability boundary and mechanism of rotor instability are analyzed. We find that the meshing force of a misaligned spline coupling increases nonlinearly with spline thickness. The results demonstrate that the misalignment is responsible for the instability of the rotor-spline coupling system.
    An intentional spline misalignment is introduced to achieve an interference fit and zero backlash condition. This leads to uneven load distribution among the spline teeth. A further spline misalignment of 50um can result in rotor-spline coupling failure. The maximum tensile root stress shifted to the left under this condition.
    Positive spline misalignment increases the gear mesh misalignment. Conversely, negative spline misalignment has no effect. The right-handed spline misalignment is opposite to the helix hand. The high contact area is moved from the center to the left side. In both cases, gear mesh is misaligned due to deflection and tilting of the gear under load.
    This variation of the tooth surface is measured as the change in clearance in the transverse plain. The radial and axial clearance values are the same, while the difference between the 2 is less. In addition to the frictional force, the axial clearance of the splines is the same, which increases the gear mesh misalignment. Hence, the same procedure can be used to determine the frictional force of a rotor-spline coupling.
    Gear mesh misalignment influences spline-rotor coupling performance. This misalignment changes the distribution of the gear mesh and alters contact and bending stresses. Therefore, it is essential to understand the effects of misalignment in spline couplings. Using a simplified system of helical gear pair, Hong et al. examined the load distribution along the tooth interface of the spline. This misalignment caused the flank contact pattern to change. The misaligned teeth exhibited deflection under load and developed a tilting moment on the gear.
    The effect of spline misalignment in rotor-spline couplings is minimized by using a mechanism that reduces backlash. The mechanism comprises cooperably splined male and female members. One member is formed by 2 coaxially aligned splined segments with end surfaces shaped to engage in sliding relationship. The connecting device applies axial loads to these segments, causing them to rotate relative to 1 another.

    China Custom CNC Drilling Milling Machine for Aluminum Profile with high qualityChina Custom CNC Drilling Milling Machine for Aluminum Profile with high quality

    China Professional Window Door Aluminum Drilling Milling Machine CNC Aluminum Window Machine for Drilling Milling Holes Slots wholesaler

    Product Description

    Window Door Aluminum Drilling Milling Machine CNC Aluminum Window Machine for Drilling Milling Holes Slots

     

    Product Description

    1. The machine is used for drilling holes, milling grooves, processing round holes and special-shaped holes,plane        engraving of aluminum alloy profiles.
    2. Adopted ZheJiang Syntec CNC Control system.
    3. Adopted the electric spindle, high precision, high safety and reliability.
    4. X axle adopts high precision helical gear and rack, Y and Z axis adopt high-precision ball screw transmission,            steady transmission and high precision.
    5. By using programming software to transform and process G code automatically, easy operation, high efficiency        and low labor intensity.
    6. workbench can turn 180°,-90°0°+90°, it can realize material three-sides section processing by clamping 1 time, it can process deep and special-shaped holes through workbench turning, high efficiency and precision

    Product Parameters

     

    product name cnc drilling milling machine for window door making 
    voltage 380V/50HZ/3PH
    power 3kw
    air pressure 0.5mpa-0.8mpa
    Motor Rotational Speed 2840r/min
    milling cutting diameter 190MM
    Main sharft diameter 32MM
    brand YBKE
    dimension 3500*1000*1750mm

     
     

    Detailed Photos

     

     

     

    Company Profile

     

    HangZhou YBKE Machinery Co.,Ltd specializes in the production of insulating glass machine, UPVC and aluminum window & door machine for over 13 years experience. Each machine before delivery has been strictly tested. We can offer customized solutions help customers meet real demands. We hope to establish long-term friendly business relations with our partners, and realize CZPT cooperation. Welcome to visit our factory on-site or online!!!
     

    Exhibition

    Packaging & Shipping

     

     

    After Sales Service

     

    1. The warranty period of the main electrical components is 2 years. The warranty period of the whole machine is 1 year.
    2. 8 engineers can go abroad to serve.
    3. English Manual and video tutorial. Free Training how to install the machine,free training how to use the machine.
    4. Use online contact tools such as Skype WeChat WhatsApp Facebook to provide online services to customers.
    5. We provide free parts and components in warranty period.
    6. We provide free parts and components in 1 year warranty period.
     

    FAQ

    1.Question: How to ensure product quality?
    Answer:
    1).We have machining center, parts and components are produced by ourselves to ensure the precision.
    2).Before the machine leaves our factory, we will only ship the machines after debugging and strictly test.
    3).Imported electric components, extend the service life.
    4).Main electric component is with 2 years warranty.
    5).The after-sale service shall be lifelong responsibility system.
    2.Question:If our price is higher than another company or factories?
    Answer: Please check the difference of the machine of parts ,service and guarantee, especially the machine inner electric parts, sometimes, if the machine have breakdown, the most reason is the machine inner electric parts problem, but we use the famous and reliable parts for the machines inside.
    3.How to install our machines in 2571?
    Answer:We record the installation and debugging videos and will send you all the circuit diagrams.
    We could establish an after-sale service group of only your company after the machines arrives. After all we have had 1 year online installation and debugging experience, please be rest assured.
    4.What you can do if my machines have problems?
    Answer:
    1) We can send you free components if your machines are in guarantee time.
    2) We can send our engineers to repair your machines.
    5.What free accessories or discount can I get if order now?
    Answer:Message Linda for details!

    What Are the Advantages of a Splined Shaft?

    If you are looking for the right splined shaft for your machine, you should know a few important things. First, what type of material should be used? Stainless steel is usually the most appropriate choice, because of its ability to offer low noise and fatigue failure. Secondly, it can be machined using a slotting or shaping machine. Lastly, it will ensure smooth motion. So, what are the advantages of a splined shaft?
    Stainless steel is the best material for splined shafts

    When choosing a splined shaft, you should consider its hardness, quality, and finish. Stainless steel has superior corrosion and wear resistance. Carbon steel is another good material for splined shafts. Carbon steel has a shallow carbon content (about 1.7%), which makes it more malleable and helps ensure smooth motion. But if you’re not willing to spend the money on stainless steel, consider other options.
    There are 2 main types of splines: parallel splines and crowned splines. Involute splines have parallel grooves and allow linear and rotary motion. Helical splines have involute teeth and are oriented at an angle. This type allows for many teeth on the shaft and minimizes the stress concentration in the stationary joint.
    Large evenly spaced splines are widely used in hydraulic systems, drivetrains, and machine tools. They are typically made from carbon steel (CR10) and stainless steel (AISI 304). This material is durable and meets the requirements of ISO 14-B, formerly DIN 5463-B. Splined shafts are typically made of stainless steel or C45 steel, though there are many other materials available.
    Stainless steel is the best material for a splined shaft. This metal is also incredibly affordable. In most cases, stainless steel is the best choice for these shafts because it offers the best corrosion resistance. There are many different types of splined shafts, and each 1 is suited for a particular application. There are also many different types of stainless steel, so choose stainless steel if you want the best quality.
    For those looking for high-quality splined shafts, CZPT Spline Shafts offer many benefits. They can reduce costs, improve positional accuracy, and reduce friction. With the CZPT TFE coating, splined shafts can reduce energy and heat buildup, and extend the life of your products. And, they’re easy to install – all you need to do is install them.
    splineshaft

    They provide low noise, low wear and fatigue failure

    The splines in a splined shaft are composed of 2 main parts: the spline root fillet and the spline relief. The spline root fillet is the most critical part, because fatigue failure starts there and propagates to the relief. The spline relief is more susceptible to fatigue failure because of its involute tooth shape, which offers a lower stress to the shaft and has a smaller area of contact.
    The fatigue life of splined shafts is determined by measuring the S-N curve. This is also known as the Wohler curve, and it is the relationship between stress amplitude and number of cycles. It depends on the material, geometry and way of loading. It can be obtained from a physical test on a uniform material specimen under a constant amplitude load. Approximations for low-alloy steel parts can be made using a lower-alloy steel material.
    Splined shafts provide low noise, minimal wear and fatigue failure. However, some mechanical transmission elements need to be removed from the shaft during assembly and manufacturing processes. The shafts must still be capable of relative axial movement for functional purposes. As such, good spline joints are essential to high-quality torque transmission, minimal backlash, and low noise. The major failure modes of spline shafts include fretting corrosion, tooth breakage, and fatigue failure.
    The outer disc carrier spline is susceptible to tensile stress and fatigue failure. High customer demands for low noise and low wear and fatigue failure makes splined shafts an excellent choice. A fractured spline gear coupling was received for analysis. It was installed near the top of a filter shaft and inserted into the gearbox motor. The service history was unknown. The fractured spline gear coupling had longitudinally cracked and arrested at the termination of the spline gear teeth. The spline gear teeth also exhibited wear and deformation.
    A new spline coupling method detects fault propagation in hollow cylindrical splined shafts. A spline coupling is fabricated using an AE method with the spline section unrolled into a metal plate of the same thickness as the cylinder wall. In addition, the spline coupling is misaligned, which puts significant concentration on the spline teeth. This further accelerates the rate of fretting fatigue and wear.
    A spline joint should be lubricated after 25 hours of operation. Frequent lubrication can increase maintenance costs and cause downtime. Moreover, the lubricant may retain abrasive particles at the interfaces. In some cases, lubricants can even cause misalignment, leading to premature failure. So, the lubrication of a spline coupling is vital in ensuring proper functioning of the shaft.
    The design of a spline coupling can be optimized to enhance its wear resistance and reliability. Surface treatments, loads, and rotation affect the friction properties of a spline coupling. In addition, a finite element method was developed to predict wear of a floating spline coupling. This method is feasible and provides a reliable basis for predicting the wear and fatigue life of a spline coupling.
    splineshaft

    They can be machined using a slotting or shaping machine

    Machines can be used to shape splined shafts in a variety of industries. They are useful in many applications, including gearboxes, braking systems, and axles. A slotted shaft can be manipulated in several ways, including hobbling, broaching, and slotting. In addition to shaping, splines are also useful in reducing bar diameter.
    When using a slotting or shaping machine, the workpiece is held against a pedestal that has a uniform thickness. The machine is equipped with a stand column and limiting column (Figure 1), each positioned perpendicular to the upper surface of the pedestal. The limiting column axis is located on the same line as the stand column. During the slotting or shaping process, the tool is fed in and out until the desired space is achieved.
    One process involves cutting splines into a shaft. Straddle milling, spline shaping, and spline cutting are 2 common processes used to create splined shafts. Straddle milling involves a fixed indexing fixture that holds the shaft steady, while rotating milling cutters cut the groove in the length of the shaft. Several passes are required to ensure uniformity throughout the spline.
    Splines are a type of gear. The ridges or teeth on the drive shaft mesh with grooves in the mating piece. A splined shaft allows the transmission of torque to a mate piece while maximizing the power transfer. Splines are used in heavy vehicles, construction, agriculture, and massive earthmoving machinery. Splines are used in virtually every type of rotary motion, from axles to transmission systems. They also offer better fatigue life and reliability.
    Slotting or shaping machines can also be used to shape splined shafts. Slotting machines are often used to machine splined shafts, because it is easier to make them with these machines. Using a slotting or shaping machine can result in splined shafts of different sizes. It is important to follow a set of spline standards to ensure your parts are manufactured to the highest standards.
    A milling machine is another option for producing splined shafts. A spline shaft can be set up between 2 centers in an indexing fixture. Two side milling cutters are mounted on an arbor and a spacer and shims are inserted between them. The arbor and cutters are then mounted to a milling machine spindle. To make sure the cutters center themselves over the splined shaft, an adjustment must be made to the spindle of the machine.
    The machining process is very different for internal and external splines. External splines can be broached, shaped, milled, or hobbed, while internal splines cannot. These machines use hard alloy, but they are not as good for internal splines. A machine with a slotting mechanism is necessary for these operations.

    China Professional Window Door Aluminum Drilling Milling Machine CNC Aluminum Window Machine for Drilling Milling Holes Slots wholesaler China Professional Window Door Aluminum Drilling Milling Machine CNC Aluminum Window Machine for Drilling Milling Holes Slots wholesaler

    China high quality 3200 CNC Aluminum Profile Drilling and Milling Machine wholesaler

    Product Description

    3200 cnc aluminum profile drilling and milling Machine

    Product Description

    Performance:
    1. The machine is used for drilling holes, milling grooves, processing round holes and special shape holes,plane engraving of aluminum alloy profiles.
    2. Adopted ZheJiang Syntec CNC Control system.
    3. Adopted the electric spindle, high precision, high safety and reliability.
    4. X axle adopts high precision helical gear and rack, Y and Z axis adopt high precision ball
    screw trassmission, steady transmission and high precision.
    5. By using programming software to transform and process G code automatically, easy
    operation, high efficiency and low labour intensity.
    6. workbench can turn 180°,-90°0 +90°, it can realize material 3 sides section processing
    by clamping 1 time, it can process deep and special-shaped holes through workbench turning,
    high efficiency and precision.
    Detail pictures:

     

    related product

     

             800 aluminum drilling and milling machine                                   16kn aluminum punching machine 

    Packaging & Shipping

     

    Company Profile

      Our company is HangZhou YBKE machinery Co.,Ltd,which is a manufacturer of insulating glass ,pvc window machine,aluminum window machine with well-equipped testing facilities and strong technical force.
      With a wide range, good quality, reasonable prices and stylish designs, our products are extensively used in insulating glass,pvc and aluminum machine manufacture and other industries.
      Our products are widely recognized and trusted by users and can meet continuously changing economic and social needs. We welcome new and old customers from all walks of life to contact us for future business relationships and mutual success!

    After Sales Service

     

    1.24 hours technical support by phone, email or 1 years warranty period
    2.Our senior engineer is available to travel aboard, help the installation, maintenance and training staff. 
    3.By offering this support, we make sure the cutomer start the business smoothly, to realise CZPT cooperation.
    YBKE always looking for long term cooperaion, not 1 time deal.

    FAQ

    1. who are we?
    We are based in ZheJiang , China, start from 2007,sell to North America(20.00%),Southern Europe(10.00%),Eastern Europe(10.00%),South America(10.00%),Mid East(8.00%),South Asia(5.00%),Southeast Asia(5.00%),Northern Europe(5.00%),Central America(5.00%),Western Europe(5.00%),Eastern Asia(5.00%),Africa(5.00%),Oceania(5.00%),Domestic Market(2.00%). There are total about 11-50 people in our office.
    2. how can we guarantee quality?
    Always a pre-production sample before mass production;
    Always final Inspection before shipment;
    3.what can you buy from us?
    glass machine,window machine,insulating glass machine,insulating glass line,pvc window equipment
    4. why should you buy from us not from other suppliers?
    Specializing in the production of insulating glass equipment for 12 years,We have an excellent engineering team, and the research and development of new products has been in the leading position in the industry.
    5. what services can we provide?
    Accepted Delivery Terms: FOB,CIF,EXW,Express Delivery;
    Accepted Payment Currency:USD,EUR,JPY,CAD,HKD,CNY,CHF;
    Accepted Payment Type: T/T,Western Union,Cash;
    Language Spoken:English,Chinese,Spanish,German,French,Russian,Italian

    Exhibition Customers

    The Functions of Splined Shaft Bearings

    Splined shafts are the most common types of bearings for machine tools. They are made of a wide variety of materials, including metals and non-metals such as Delrin and nylon. They are often fabricated to reduce deflection. The tooth profile will become deformed with time, as the shaft is used over a long period of time. Splined shafts are available in a huge range of materials and lengths.

    Functions

    Splined shafts are used in a variety of applications and industries. They are an effective anti-rotational device, as well as a reliable means of transmitting torque. Other types of shafts are available, including key shafts, but splines are the most convenient for transmitting torque. The following article discusses the functions of splines and why they are a superior choice. Listed below are a few examples of applications and industries in which splines are used.
    Splined shafts can be of several styles, depending on the application and mechanical system in question. The differences between splined shaft styles include the design of teeth, overall strength, transfer of rotational concentricity, sliding ability, and misalignment tolerance. Listed below are a few examples of splines, as well as some of their benefits. The difference between these styles is not mutually exclusive; instead, each style has a distinct set of pros and cons.
    A splined shaft is a cylindrical shaft with teeth or ridges that correspond to a specific angular position. This allows a shaft to transfer torque while maintaining angular correspondence between tracks. A splined shaft is defined as a cylindrical member with several grooves cut into its circumference. These grooves are equally spaced around the shaft and form a series of projecting keys. These features give the shaft a rounded appearance and allow it to fit perfectly into a grooved cylindrical member.
    While the most common applications of splines are for shortening or extending shafts, they can also be used to secure mechanical assemblies. An “involute spline” spline has a groove that is wider than its counterparts. The result is that a splined shaft will resist separation during operation. They are an ideal choice for applications where deflection is an issue.
    A spline shaft’s radial torsion load distribution is equally distributed, unless a bevel gear is used. The radial torsion load is evenly distributed and will not exert significant load concentration. If the spline couplings are not aligned correctly, the spline connection can fail quickly, causing significant fretting fatigue and wear. A couple of papers discuss this issue in more detail.
    splineshaft

    Types

    There are many different types of splined shafts. Each type features an evenly spaced helix of grooves on its outer surface. These grooves are either parallel or involute. Their shape allows them to be paired with gears and interchange rotary and linear motion. Splines are often cold-rolled or cut. The latter has increased strength compared to cut spines. These types of shafts are commonly used in applications requiring high strength, accuracy, and smoothness.
    Another difference between internal and external splined shafts lies in the manufacturing process. The former is made of wood, while the latter is made of steel or a metal alloy. The process of manufacturing splined shafts involves cutting furrows into the surface of the material. Both processes are expensive and require expert skill. The main advantage of splined shafts is their adaptability to a wide range of applications.
    In general, splined shafts are used in machinery where the rotation is transferred to an internal splined member. This member can be a gear or some other rotary device. These types of shafts are often packaged together as a hub assembly. Cleaning and lubricating are essential to the life of these components. If you’re using them on a daily basis, you’ll want to make sure to regularly inspect them.
    Crowned splines are usually involute. The teeth of these splines form a spiral pattern. They are used for smaller diameter shafts because they add strength. Involute splines are also used on instrument drives and valve shafts. Serration standards are found in the SAE. Both kinds of splines can also contain a ball bearing for high torque. The difference between the 2 types of splines is the number of teeth on the shaft.
    Internal splines have many advantages over external ones. For example, an internal spline shaft can be made using a grinding wheel instead of a CNC machine. It also uses a more accurate and economical process. Furthermore, it allows for a shorter manufacturing cycle, which is essential when splining high-speed machines. In addition, it stabilizes the relative phase between the spline and thread.
    splineshaft

    Manufacturing methods

    There are several methods used to fabricate a splined shaft. Key and splined shafts are constructed from 2 separate parts that are shaped in a synchronized manner to transfer torque uniformly. Hot rolling is 1 method, while cold rolling utilizes low temperatures to form metal. Both methods enhance mechanical properties, surface finishes, and precision. The advantage of cold rolling is its cost-effectiveness.
    Cold forming is 1 method, as well as machining and assembling. Cold forming is a unique process that allows the spline to be shaped to the desired shape. The resulting shape provides maximum contact area and torsional strength. Standard splines are available in standard sizes, but custom lengths can also be ordered. CZPT offers various auxiliary equipment, such as mating sleeves and flanged bushings.
    Cold forging is another method. This method produces long splined shafts that are used in automobile propellers. After the spline portion is cut out, it is worked on in a hobbing machine. Work hardening enhances the root strength of the splined portion. It can be used for bearings, gears, and other mechanical components. Listed below are the manufacturing methods for splined shafts.
    Parallel splines are the simplest of the splined shaft manufacturing methods. Parallel splines are usually welded to shafts, while involute splines are made of metal or non-metals. Splines are available in a wide variety of lengths and materials. The process is usually accompanied by a process called milling. The workpiece rotates to produce the serrated surface.
    Splines are internal or external grooves in a splined shaft. They work in combination with keyways to transfer torque. Male and female splines are used in gears. Female and male splines correspond to 1 another to ensure proper angular correspondence. Involute splines have more surface area and thus are stronger than external splines. Moreover, they help the shaft fit into a grooved cylindrical member without misalignment.
    A variety of other methods of manufacturing a splined shaft can be used to produce a splined shaft. Spline shafts can be produced using broaching and shaping, 2 precision machining methods. Broaching uses a metal tool with successively larger teeth to remove metal and create ridges and holes in the surface of a material. However, this process is expensive and requires special expertise.
    splineshaft

    Applications

    The splined shaft is a mechanical component with a helix-like shape formed by the equal spacing of grooves in a circular ring. The splines can either have parallel or involute sides. The splines minimize stress concentration in stationary joints and can be used in both rotary and linear motion. In some cases, splines are rolled rather than cut. The latter is more durable than cut splines and is often used in applications requiring high strength, accuracy, and smooth finish.
    Splined shafts are commonly made of carbon steel. This alloy steel has a low carbon content, making it easy to work with. Carbon steel is a great choice for splines because it is malleable. Generally, high-quality carbon steel provides a consistent motion. Steel alloys are also available that contain nickel, chromium, copper, and other metals. If you’re unsure of the right material for your application, you can consult a spline chart.
    Splines are a versatile mechanical component. They are easy to cut and fit. Splines can be internal or external, with teeth positioned at equal intervals on both sides of the shaft. This allows the shaft to engage with the hub around the entire circumference of the hub. It also increases load capacity by creating a constant multiple-tooth point of contact with the hub. For this reason, they’re used extensively in rotary and linear motion.
    Splined shafts are used in a wide variety of industries. CZPT Inc. offers custom and standard splined shafts for a variety of applications. When choosing a splined shaft for a specific application, consider the surrounding mated components, torque requirements, and size requirements. These 3 factors will make it the ideal choice for your rotary equipment. And you’ll be pleased with the end result!
    There are many types of splines and their applications are endless. They transfer torque and angular misalignment between parts, and they also enable the axial rotation of assembled components. Therefore, splines are an essential component of machinery and are used in a wide range of applications. This type of shaft can be found in various types of machines, from household appliances to industrial machinery. So, the next time you’re looking for a splined shaft, make sure you look for a splined one.

    China high quality 3200 CNC Aluminum Profile Drilling and Milling Machine wholesaler China high quality 3200 CNC Aluminum Profile Drilling and Milling Machine wholesaler

    China Hot selling CNC Drilling Cylinder Head Bed Type Milling Machine Vmc850 with high quality

    Product Description

     

     

    3 Axis 4 Axis 5 Axis Vertical Precision Machining Metal VMC CNC Machine

    Product Description

    1. VMC850P 3-axis linear CZPT vertical machining center

    Table size:1000*500 mm
    Travel of X/Y/Z axis:800*500*600 mm
    φ40*16 screw lead
    HIWIN/PMI 45 ball linear guide
    spindle BT40-150-8000
    disc type magazine of 24 tools

    2. VMC850A 3 linear guides vertical machining center

    Table size 1000*500 mm
    Travel of X/Y/Z axis 800*500*500 mm
    φ36*16 screw lead
    HIWIN/PMI 35 ball linear guide
    spindle BT40-140-10000
    disc type magazine of 24 tools

    3. VMC850B 3 hard guideways vertical machining center

    Table size 1000*500 mm
    Travel of X/Y/Z axis 800*500*500 mm
    φ40*10 screw lead
    spindle BT40-150-8000
    disc type magazine of 24 tools

    CNC controller:

    1. 2-4 axis control
    2. 10.4″ color LCD screen
    3. Supporting NCUC, etherCAT bus protocol
    4. Supporting 16,000,000PPR high-precision encoder
    5. Supporting TCP\IP, Ethernet communication protocols
    6. Smart function:
    7. Big data of CNC machine tool
    8. Broken tool inspection
    9. Temperature compensation

     

    Product Parameters

    VMC850 technical parameter

    worktable

    Worktable size

    mm

    1000*500

    Worktable max.load

    kg

    600

    T-slot (number*width*distance)

     

    5-18*108

    Travel

    X-aixs travel

    mm

    800

    Y-aixs travel

    mm

    500

    Z-aixs travel

    mm

    500

    Distance from spindle nose to table surface

    mm

    120-620

    Distance from spindle center to column guideway

    mm

    581

    Spindle

    Spindle transmission type

     

    Belt type

    Spindle taper

     

    BT 40 φ140

    Spindle speed

    rpm

    8000

    Spindle motor

    kw

    7.5

    Feed Speed

    X/Y/Z-aixs rapid feed

    m/min

    36\36\32

    Cutting feed speed

    mm/min

    1-10000

    Tool magazine

    Tool number

    pcs

    24

    Tools change way

     

    Disc type ATC

    Tool change time

    s

    2-3

    Precision

    Positioning precision

    mm

    ±0.008

    Reported positioning precision

    mm

    ±0.005

    other

    controller

     

    HuazhongCNC (HNC)

    Overall size

    mm

    2700*2300*2300

    Machine weight

    kg

    5000

     

    VMC840 (3 axis hard railway) technical parameter

    worktable

    Worktable size

    mm

    1000*360

    Worktable max.load

    kg

    300

    T-slot (number*width*distance)

     

    3-18*100

    Travel

    X-aixs travel

    mm

    800

    Y-aixs travel

    mm

    400

    Z-aixs travel

    mm

    550

    Distance from spindle nose to table surface

    mm

    100-650

    Distance from spindle center to column guideway

    mm

    445

    Spindle

    Spindle transmission type

     

    Belt type

    Spindle taper

     

    BT 40 φ120

    Spindle speed

    rpm

    8000

    Spindle motor

    kw

    5.5

    Feed Speed

    X/Y/Z-aixs rapid feed

    m/min

    15\15\8

    Cutting feed speed

    mm/min

    1-10000

    Tool magazine

    Tool number

    pcs

    16

    Tools change way

     

    Disc type ATC

    Tool change time

    s

    2-3

    Precision

    Positioning precision

    mm

    ±0.01

    Reported positioning precision

    mm

    ±0.008

    other

    controller

     

    HuazhongCNC (HNC)

    Overall size

    mm

    2500*2000*2100

    Machine weight

    kg

    3200

     

     

     

    Detailed Photos

     

    Company Profile

    HangZhou CZPT Numerical Control Co., Ltd. (HuazhongCNC or HNC) was established in 1994 with a registered capital of 172,79 million yuan. We are the 1st listed chinese company in CNC area with the Stock Code:300161

    We are the first batch of national innovation enterprise, vice president unit of the Intelligent Manufacturing Branch of China Machinery Industry Federation, vice president unit of China Machine Tool Industry Association, director unit of the CNC System Association Branch, secretary general unit of the National Machine Tool CNC System Standard Council, director unit of High-End CNC System and Application Industry Technological Innovation Strategic Alliance (pilot). Nine of the products were rated as national key new products.

     

     

    Analytical Approaches to Estimating Contact Pressures in Spline Couplings

    A spline coupling is a type of mechanical connection between 2 rotating shafts. It consists of 2 parts – a coupler and a coupling. Both parts have teeth which engage and transfer loads. However, spline couplings are typically over-dimensioned, which makes them susceptible to fatigue and static behavior. Wear phenomena can also cause the coupling to fail. For this reason, proper spline coupling design is essential for achieving optimum performance.
    splineshaft

    Modeling a spline coupling

    Spline couplings are becoming increasingly popular in the aerospace industry, but they operate in a slightly misaligned state, causing both vibrations and damage to the contact surfaces. To solve this problem, this article offers analytical approaches for estimating the contact pressures in a spline coupling. Specifically, this article compares analytical approaches with pure numerical approaches to demonstrate the benefits of an analytical approach.
    To model a spline coupling, first you create the knowledge base for the spline coupling. The knowledge base includes a large number of possible specification values, which are related to each other. If you modify 1 specification, it may lead to a warning for violating another. To make the design valid, you must create a spline coupling model that meets the specified specification values.
    After you have modeled the geometry, you must enter the contact pressures of the 2 spline couplings. Then, you need to determine the position of the pitch circle of the spline. In Figure 2, the centre of the male coupling is superposed to that of the female spline. Then, you need to make sure that the alignment meshing distance of the 2 splines is the same.
    Once you have the data you need to create a spline coupling model, you can begin by entering the specifications for the interface design. Once you have this data, you need to choose whether to optimize the internal spline or the external spline. You’ll also need to specify the tooth friction coefficient, which is used to determine the stresses in the spline coupling model 20. You should also enter the pilot clearance, which is the clearance between the tip 186 of a tooth 32 on 1 spline and the feature on the mating spline.
    After you have entered the desired specifications for the external spline, you can enter the parameters for the internal spline. For example, you can enter the outer diameter limit 154 of the major snap 54 and the minor snap 56 of the internal spline. The values of these parameters are displayed in color-coded boxes on the Spline Inputs and Configuration GUI screen 80. Once the parameters are entered, you’ll be presented with a geometric representation of the spline coupling model 20.

    Creating a spline coupling model 20

    The spline coupling model 20 is created by a product model software program 10. The software validates the spline coupling model against a knowledge base of configuration-dependent specification constraints and relationships. This report is then input to the ANSYS stress analyzer program. It lists the spline coupling model 20’s geometric configurations and specification values for each feature. The spline coupling model 20 is automatically recreated every time the configuration or performance specifications of the spline coupling model 20 are modified.
    The spline coupling model 20 can be configured using the product model software program 10. A user specifies the axial length of the spline stack, which may be zero, or a fixed length. The user also enters a radial mating face 148, if any, and selects a pilot clearance specification value of 14.5 degrees or 30 degrees.
    A user can then use the mouse 110 to modify the spline coupling model 20. The spline coupling knowledge base contains a large number of possible specification values and the spline coupling design rule. If the user tries to change a spline coupling model, the model will show a warning about a violation of another specification. In some cases, the modification may invalidate the design.
    In the spline coupling model 20, the user enters additional performance requirement specifications. The user chooses the locations where maximum torque is transferred for the internal and external splines 38 and 40. The maximum torque transfer location is determined by the attachment configuration of the hardware to the shafts. Once this is selected, the user can click “Next” to save the model. A preview of the spline coupling model 20 is displayed.
    The model 20 is a representation of a spline coupling. The spline specifications are entered in the order and arrangement as specified on the spline coupling model 20 GUI screen. Once the spline coupling specifications are entered, the product model software program 10 will incorporate them into the spline coupling model 20. This is the last step in spline coupling model creation.
    splineshaft

    Analysing a spline coupling model 20

    An analysis of a spline coupling model consists of inputting its configuration and performance specifications. These specifications may be generated from another computer program. The product model software program 10 then uses its internal knowledge base of configuration dependent specification relationships and constraints to create a valid three-dimensional parametric model 20. This model contains information describing the number and types of spline teeth 32, snaps 34, and shoulder 36.
    When you are analysing a spline coupling, the software program 10 will include default values for various specifications. The spline coupling model 20 comprises an internal spline 38 and an external spline 40. Each of the splines includes its own set of parameters, such as its depth, width, length, and radii. The external spline 40 will also contain its own set of parameters, such as its orientation.
    Upon selecting these parameters, the software program will perform various analyses on the spline coupling model 20. The software program 10 calculates the nominal and maximal tooth bearing stresses and fatigue life of a spline coupling. It will also determine the difference in torsional windup between an internal and an external spline. The output file from the analysis will be a report file containing model configuration and specification data. The output file may also be used by other computer programs for further analysis.
    Once these parameters are set, the user enters the design criteria for the spline coupling model 20. In this step, the user specifies the locations of maximum torque transfer for both the external and internal spline 38. The maximum torque transfer location depends on the configuration of the hardware attached to the shafts. The user may enter up to 4 different performance requirement specifications for each spline.
    The results of the analysis show that there are 2 phases of spline coupling. The first phase shows a large increase in stress and vibration. The second phase shows a decline in both stress and vibration levels. The third stage shows a constant meshing force between 300N and 320N. This behavior continues for a longer period of time, until the final stage engages with the surface.
    splineshaft

    Misalignment of a spline coupling

    A study aimed to investigate the position of the resultant contact force in a spline coupling engaging teeth under a steady torque and rotating misalignment. The study used numerical methods based on Finite Element Method (FEM) models. It produced numerical results for nominal conditions and parallel offset misalignment. The study considered 2 levels of misalignment – 0.02 mm and 0.08 mm – with different loading levels.
    The results showed that the misalignment between the splines and rotors causes a change in the meshing force of the spline-rotor coupling system. Its dynamics is governed by the meshing force of splines. The meshing force of a misaligned spline coupling is related to the rotor-spline coupling system parameters, the transmitting torque, and the dynamic vibration displacement.
    Despite the lack of precise measurements, the misalignment of splines is a common problem. This problem is compounded by the fact that splines usually feature backlash. This backlash is the result of the misaligned spline. The authors analyzed several splines, varying pitch diameters, and length/diameter ratios.
    A spline coupling is a two-dimensional mechanical system, which has positive backlash. The spline coupling is comprised of a hub and shaft, and has tip-to-root clearances that are larger than the backlash. A form-clearance is sufficient to prevent tip-to-root fillet contact. The torque on the splines is transmitted via friction.
    When a spline coupling is misaligned, a torque-biased thrust force is generated. In such a situation, the force can exceed the torque, causing the component to lose its alignment. The two-way transmission of torque and thrust is modeled analytically in the present study. The analytical approach provides solutions that can be integrated into the design process. So, the next time you are faced with a misaligned spline coupling problem, make sure to use an analytical approach!
    In this study, the spline coupling is analyzed under nominal conditions without a parallel offset misalignment. The stiffness values obtained are the percentage difference between the nominal pitch diameter and load application diameter. Moreover, the maximum percentage difference in the measured pitch diameter is 1.60% under a torque of 5000 N*m. The other parameter, the pitch angle, is taken into consideration in the calculation.

    China Hot selling CNC Drilling Cylinder Head Bed Type Milling Machine Vmc850 with high qualityChina Hot selling CNC Drilling Cylinder Head Bed Type Milling Machine Vmc850 with high quality

    China Standard CNC High Speed H Beam Drilling Machine Model Ybhd1250 with Great quality

    Product Description

    H/L/U/C/I Beam Angle beam channel beam profile CNC Marking Drilling Machine

    Introduction&Application:

       The machine is mainly used for processing holes on H-beam, Channel beam with Angle beam and plate drilling and marking processing, high speed, the positioning, feeding of 3 spindles are all driven by servo motor. It adopts spindle servo motor, controls by YOKOGAWA PLC., and in-feeding by CNC carriage, high efficiency, and high precision; and it is wildly used in construction, bridge and tower mast & rack, with other industries.
      The main advantage of high speed CNC drilling YBHD1250, it’s high speed drilling, rotation speed can reach 3000rpm.
      Due to SWZ1250H using the carbide drill bits, single hole processing efficiency increased to more than 5 times than the normal speed machine, the overall production efficiency more than 2 times than the normal machine.
      For example: 22 mm diameter, thickness 20 mm workpiece, SWZ series drilling 1 hole need about 30 seconds, SWZ1250H series can be controlled within 5 seconds. 

    Machine feature:

         1), The whole machine is optimized integrated design, with high quality machine body and drilling units, which ensure high stability and high rigidity when high speed drilling. This machine is mainly composed of main machine, CNC sliding table (3), drilling spindle box (3), clamping device, detection device, cooling system, scrap box, hydraulic station, lubrication system, Tool Magazine(optional), marking unit (optional).
        2), The main machine is welded by square pipe. The structure of main machine is strengthened where the stress is greater. After welding, artificial aging treatment was carried out. All these ensure the stability of the main machine and then ensure accuracy of the whole machine.
        3), There are 3 CNC sliding tables: fixed side CNC sliding table, movable side CNC sliding table and intermediate CNC sliding table. The 3 sliding tables are similar in structure and are composed of sliding plate, sliding table and servo drive system.
        4), There are 6 CNC axes on the 3 sliding tables, including 3 feeding CNC axes and 3 positioning CNC axes. Each CNC axle is guided by precise linear rolling guide, driven by AC servo motor and ball screw, which ensures positioning accuracy.
        5), There are 3 spindle boxes,  which are mounted on 3 NC sliding tables for horizontal and vertical drilling. Each drilling spindle box can drill both separately and simultaneously.
        6), Used high-speed precision spindle from ZheJiang ‘s well-known brand, model BT, which can meet the using demand of both hard alloy and high-speed steel drill. Every CNC axes are guided by the heavy loading roller linear guide, driven by the servo motor and roller screw which ensure the rigidity and positional accuracy.
       7). Also equips with hydraulic tool cylinder, using hydraulic -disc spring to do automatic tool de-clamping, tool pulling, with tool status monitoring device to check the tool clamping and effective safety co-locking protection device. Easy to change tools. The spindle is driven by spindle servo and timing belt, reducing ratio i=2 , spindle speed is 0~3000r/min, large rotation speed range.
       8), The workpiece is fixed by hydraulic clamping method. There are 5 hydraulic cylinders, which are clamped horizontally and vertically. Horizontal clamping consists of fixed side datum and moving side clamping, fixed side datum is fixed, moving side clamping is driven by large cylinder sliding table, guided by linear CZPT rail, moving towards the fixed side to clamp the workpiece horizontally; vertical clamping is on both fixed side and moving side, and each cylinder drives the pressure bar to move up and down in 4 positions. The workpiece is clamped vertically.
        9), The machine is fed by a NC carriage. The NC carriage is decelerated by the servo motor through the reducer and then passes through the gear rack to driven a laser alignment device. When the workpiece is fed in, the workpiece can be detected and then fed back to realize the precise positioning of the workpiece.
       10), Cooling system: using air-fog cooling, with the internal and external cooling. Each drilling spindle box is equipped with its own external cooling nozzle and internal cooling joint, which can be selected according to the needs of drilling holes. Internal and external cooling can be used independently or simultaneously.
       11), Chip collecting box: Universal caster guide, easy to carry.
       12), The hydraulic system is for auto tool device of ram type drilling box,Horizontal clamping, vertical clamping, side pushing and power raceway, unified oil supply; all the hydraulic units are from imported brands or joint venture companies, for easy maintenance and solving oil leaking, all the design adopts accumulative valves.If marking unit is equipped, there is also an independent hydraulic station for marking unit action.
       13), Machine equips with auto lubrication system, automatic pump the lubrication oil into and do fully lubrication for each and every part of linear guide, ball screw nuts and every rolling bearings etc at regular time, no need manual lubrication, increase the parts life and save time. All the lubrication pump and units are using famous brands.
      14), Tool Magazine(optional):Installed 3 inline type tool magazine, which realize the automatic tool change, also meet the demand of drilling multiple diameter’s hole. Oil spray and air spray cooling, has inner cooling and outer cooling efficacy.
      15), Marking unit(optional): The marking unit adopts the disc typing structure, 0-9, A-Z, 36 characters are distributed on the disc, and the position is selected by the servo motor.
      16), The control system is FACTORY PLC. Strong anti-interference, high precision, because of the digital communication, thus overcome the defect of easy be interference in traditional pulse analog transmission.
      17), In order to ensure the accuracy, reliability and stability of transmission system, electrical system, hydraulic system, all the key components are from international famous brand.

    Three BT40 Drilling Spindles (Top, Left and Right) with drilling function
    Marking Unit and function:
    Workpiece Sample with hole groupMain Specification:

    Model YBHD1250
    Workpiece size H Beam Web x Flange (mm) 150×80~1250×600
    U Beam WebxFlange (mm) 150×80~1250×400
    Box Beam WebxFlange (mm) 150×80~1250×400
    Angle Beam WebxFlange (mm) 200x200x16
      Max. Thickness(mm) ≤80
    Max. material length(mm) 12000
    Short material limiting mm Automatic processing≥3000
    Manual processing: 690~3000
    Spindle Spindle Axis 3
    Spindle taper BT40
    Spindle rotation speed(r/min)
    Stepless speed regulation    		 200~3000
    Max. hole diameter(mm) Fixed Side,
    Moving Side    		 Φ40(High Speed)
    Intermediate Unit
    Center line movement scope(mm) Center slide table/
    Horizontal direction    		 50~1450
    Fixed side/movement side
    Vertical direction    		 30~770
    3 Positioning CNC axis moving speed m/min 0-10m/min
    3 feed CNC axis moving speed m/min 0-5m/min
    Web width detection stroke mm 1100
    Web height detection stroke mm 290
    Motor power Spindle motor power (KW) 3*11
    Servo motor power of 3 Pcs feeding Axis(KW) 3*2
    Servo motor power of 3 Positioning Axis (KW) 3*1.5
    Feeding Trolley Feeding trolley servo motor(KW) 5
    Maximum feeding speed(m/min) 20m/min
    Maximum feeding weight(Tonnes) 10T
    Control system CNC System Japan YOKOGAWA PLC
    CNC Axis Quantity 7
    Hydraulic system Max. Hydraulic Pressure (MPa) 7.5
    Motor power(KW) 5.5
    Cooling system No. of  Nozzle 3
    Pressure of compressed air (Mpa) ≥0.5
    Cooling way Internal Cooling & External Cooling
    Tool Magazine(optional) Tool Magazine Quantity 3
    Tools quantity for each Magazine 4 Pieces
    Marking unit(optional) No. of Characters 36 Characters
    Characters Size Φ10 mm
    Imprinting Depth 0.8~1.5mm
    Position servo motor(KW) 0.75
    Working environment Working power Three phase 4 wire system 380±10%V, 50HZ
    Control power 220±10%V 50HZ
    Operate power 24V DC
    Working temperature 0ºC ~ 40ºC
    Humidity of environment ≤75%
    Overall dimension(L×W×H)(mm) About 6000×2100×3400
    Main Machine weight (Kg) About 8000

    List of the Key Outsourced Components:

    NO. Name Manufacturer
    Main Electric Component
    1 Control system Japan FACTORY PLC
    2 Servo Motor Japan Panasonic
    3 Servo Driver Japan Panasonic
    4 Spindle motor Brand of China
    5 Computer Lenovo China
    6 Rotary encoder Weidmuller
    7 Proximity Switch Normal Open Brand of china
    Normal Close
    8 Proximity switch Brand of china
    9 Photoelectric Switch Germany SICK
    Main Hydraulic Pressure Components
    1 Hydraulic valves(Main) Italy ATOS
    Main Mechanical Components
    1 Ball screw ZheJiang
    2 Linear guide ZheJiang
    3 Precision spindle ZheJiang
    Other components
    1 Spraying cooling pump ARXIHU (WEST LAKE) DIS.NE
    2 Nozzle BIJUR
    3 Pneumatic 2 couplet AirTac
    4 Cylinder AirTac

       Note: The above parts are supplied by our Approved Suppliers. If encounter special situation, we will take replace with same or higher quality level parts.

    Applicable Industry:
        The machine tool is mainly used for drilling H-shaped steel, channel steel and other workpieces, and is widely used in construction, bridges and other industries.

    Company Introduction:
        ZheZheJiang nshine CNC is always focusing on our ultimate goal – to secure and increase our customer’s productivity – has made us the leader in China market in the manufacture of machines for processing angle bar, beam channel profiles, steel plates, tubesheet and flanges, mainly serving for fabricating iron towers, steel structure, heat exchangers, boilers, bridges, and trucks.Strong R & D center with more than 10 engineers team, 25 years of experience from year 1996, more than 100 staff, plant area about 25,000 sqm., very harsh quality control of every component and the whole machine, about 12 million US dollars sales turnover per year.
         
         Sunshine CNC machines’ market share in China is around 70% and exported to 50+ countries across globe market. All top ranked tower manufacturers, steel structure fabricators and power station makers, bridge/railway manufacturers, truck makers are our clients.
       
        Main products: CNC Angle Line, CNC Beam Drilling Sawing Machine, CNC Plate Drilling Machine, CNC Rail Processing Machine, CNC Tubesheet Flange Drilling Machine, Truck beam plate punching machine, etc. 

        One measure of the outstanding quality of our machines is their longevity: many Sunshine’s machines have been in operation for more than 10 years! Many clients are continually placing repeated orders which verified well our machines’ perfect quality and reliable performance.

         The company drafted many China national standards for CNC angle line machine and CNC beam drilling sawing machine and CNC plate drilling machine.
    Relevant Certificate:

      After-sales Service:
      Training for installation and service:

      A. We will supply the machine with training video and user’s manual in English for installing, operation, maintenance and trouble-shooting, and shall give technical CZPT by e-mail,  , Wechat, telephone/MSN/ICQ and so on, when you meet some problems of installation, using or adjusting.
     

      B. You can come to our factory for inspection and training. We will provide professional guide. Direct and effective face-to-face training. Here we have assembled equipment, all sorts of tools and testing facility,we will also provide accommodation during training period.

      C.The Strong after–sale service team in China, Our engineers (staffs) can speak fluent English to communicate and solve question when you have requirement calendar day per person.

      D. Depending on the region, If need our engineer to visit for installation, we will dispatch engineer for installation and service at your site.

     
          Warranty:

       The guarantee period of quality shall be 12 months counting from the date on which the machine finished installation and accept by Buyer. We are responsible for providing the free of charge during the guarantee period. If out of guarantee time, all damaged parts are charged.

      FAQ:
       1. When can you arrange shipment?
        For machines available in stock, the shipment can be arranged within 15 days after getting advance payment or L/C;
        For machines non available in stock, the shipment can be arranged with 60 days after getting advance payment or L/C.

        2. What can you do if my machines have problems?
        1) We can send you free components if machines are in warranty period;
        2) 24 hours service on line;
        3) We can assign our engineers to serve you if you want.

        3. Do you provide machine operation training?
         Yes. We can send professional engineers to the working site for machine’s installation, commissioning and operation training.

        4. Which machine model shall I choose when I purchase from you?
        Please share us your material size and your processing request, then we will recommend our machine most suitable and most cost effective for your work demand.

       5. What’s your machine’s market share in China?
       Our market share in China is about 70%+, and we’ve exported to 50+ countries across the globe market, since year 1996.

    If you have an questions, pls call us without hesitation. Thanks! 

     

    Standard Length Splined Shafts

    Standard Length Splined Shafts are made from Mild Steel and are perfect for most repair jobs, custom machinery building, and many other applications. All stock splined shafts are 2-3/4 inches in length, and full splines are available in any length, with additional materials and working lengths available upon request and quotation. CZPT Manufacturing Company is proud to offer these standard length shafts.
    splineshaft

    Disc brake mounting interfaces that are splined

    There are 2 common disc brake mounting interfaces, splined and center lock. Disc brakes with splined interfaces are more common. They are usually easier to install. The center lock system requires a tool to remove the locking ring on the disc hub. Six-bolt rotors are easier to install and require only 6 bolts. The center lock system is commonly used with performance road bikes.
    Post mount disc brakes require a post mount adapter, while flat mount disc brakes do not. Post mount adapters are more common and are used for carbon mountain bikes, while flat mount interfaces are becoming the norm on road and gravel bikes. All disc brake adapters are adjustable for rotor size, though. Road bikes usually use 160mm rotors while mountain bikes use rotors that are 180mm or 200mm.
    splineshaft

    Disc brake mounting interfaces that are helical splined

    A helical splined disc brake mounting interface is designed with a splined connection between the hub and brake disc. This splined connection allows for a relatively large amount of radial and rotational displacement between the disc and hub. A loosely splined interface can cause a rattling noise due to the movement of the disc in relation to the hub.
    The splines on the brake disc and hub are connected via an air gap. The air gap helps reduce heat conduction from the brake disc to the hub. The present invention addresses problems of noise, heat, and retraction of brake discs at the release of the brake. It also addresses issues with skewing and dragging. If you’re unsure whether this type of mounting interface is right for you, consult your mechanic.
    Disc brake mounting interfaces that are helix-splined may be used in conjunction with other components of a wheel. They are particularly useful in disc brake mounting interfaces for hub-to-hub assemblies. The spacer elements, which are preferably located circumferentially, provide substantially the same function no matter how the brake disc rotates. Preferably, 3 spacer elements are located around the brake disc. Each of these spacer elements has equal clearance between the splines of the brake disc and the hub.
    Spacer elements 6 include a helical spring portion 6.1 and extensions in tangential directions that terminate in hooks 6.4. These hooks abut against the brake disc 1 in both directions. The helical spring portion 5.1 and 6.1 have stiffness enough to absorb radial impacts. The spacer elements are arranged around the circumference of the intermeshing zone.
    A helical splined disc mount includes a stabilizing element formed as a helical spring. The helical spring extends to the disc’s splines and teeth. The ends of the extension extend in opposite directions, while brackets at each end engage with the disc’s splines and teeth. This stabilizing element is positioned axially over the disc’s width.
    Helical splined disc brake mounting interfaces are popular in bicycles and road bicycles. They’re a reliable, durable way to mount your brakes. Splines are widely used in aerospace, and have a higher fatigue life and reliability. The interfaces between the splined disc brake and BB spindle are made from aluminum and acetate.
    As the splined hub mounts the disc in a helical fashion, the spring wire and disc 2 will be positioned in close contact. As the spring wire contacts the disc, it creates friction forces that are evenly distributed throughout the disc. This allows for a wide range of axial motion. Disc brake mounting interfaces that are helical splined have higher strength and stiffness than their counterparts.
    Disc brake mounting interfaces that are helically splined can have a wide range of splined surfaces. The splined surfaces are the most common type of disc brake mounting interfaces. They are typically made of stainless steel or aluminum and can be used for a variety of applications. However, a splined disc mount will not support a disc with an oversized brake caliper.

    China Standard CNC High Speed H Beam Drilling Machine Model Ybhd1250 with Great qualityChina Standard CNC High Speed H Beam Drilling Machine Model Ybhd1250 with Great quality

    China Hot selling Hot Sale Vmc600 High Precision CNC Milling Cutting Drilling and Engraving Vertical Machining Center CNC Machine with Free Design Custom

    Product Description

    Product Description

    Product Introduction and Use 
    As 1 new product of independent design & development, VMC600 is a multi-purpose machine which could mill surface & drill holes. This machine adopts domestic/overseas branded numerical control system and realizes full-screen edition in Chinese. Spindle adopts imported frequency converters, which could fulfill variable speed control & constant linear speed cutting functions; machining body adopts ultrasonic frequency hardening treatment; both X-axle & Z-axle adopts step/servo motor, which could process feeding motion by directly connecting shaft coupling & ball screws.
    With high power, pleasant rigidity, high precision & storage, high price-quality ratio and long cycle life, the machine is widely applied to instruments, meters, light industries, electronics, home appliances, medical instruments, aeronautics & astronautics and etc. industries, it is 1 small-medium precision & complex machine for processing various materials (especially non-ferrous metals & stainless steel) as well as an ideal equipments for large automation production.This machine could process holes below Φ16, milling plane below 18 and milling depth below 3mm.

    Detailed Photos

     

    Product Parameters

    Major Technical Parameter

      Model VMC600
    Main Motor Power KW 5.5KW
    Spindle Max. Rotating Speed Servo Spindle 8000rpm
    Z Motor Torque 15N.m
    X Motor Torque 6N.m
    Y Motor Torque 6N.m
    Spindle Taper BT40
    Worktable Size 800X320mm
    Travel(Longitudinal X/Horizontal Y/Vertical Z) 600X400X450mm
    Distance of Spindle Axis to Xihu (West Lake) Dis.way Plane 350mm
    Distance of Spindle End to Worktable 80-530mm
    The Vertical Permissible Error of Spindle Axis to Worktable Plane ≤0.02mm
    Positioning Accuracy 0.02mm
    Repeated Positioning Accuracy 0.01mm
    Machine Overall Dimension (L*W*H) mm 2600*1950*2400
    Machine Net Weight KG 2800
    System Configuration Siemens 808D/
    GSK218/FANUC/mitsubishi M80
    External Protection Level Full Closed

    Packing List

    No. Name Specification Qty.
    1 Qualified Certificate VMC600 1
    2 Accuracy Inspection List VMC600 1
    3 Connection & Test Manual   1
    4 User Manual   1
    5 Packing List VMC600 1
    6 Spanner   1
    7 Allen Wrench Set 1
    8 Timing Belt   1
    9 Milling Chuck BT40 1
    10 Drawbar   1
    11 Oil Gun   1
    12 Iron Cushion   4

    List of Partial Sourcing List

    No. Name Standard Configuration
    1 Ball Screw Jiangshu qijian 
    2 Spindle Unit (Optional Accessories) ZheJiang Danquan
    3 Electric System Chang’an Electric
    4 Oil Pump China South Pump
    5 Working Lamp HangZhou CZPT Electric
    6 System Siemens,Great, Huazhong, GSK and KND
    7 Cylinder (Optional Accessories) HangZhou Xieqing
    8 Flange Bearings (P5) Haerbin
    9 Tool Magazine ZheJiang DYSO
    10 Line CZPT rail ZheJiang HIWIN

    Standard Accessories

    Spindle unit 8000rpm GSK 218 control system Rigid tapping
    ZheJiang HIWIN screw Adjustable block Move the hand vein
    Centralized automatic oil lubrication External cooling system and water tank Simple oil-water separation device
    Full protection sheet metal shield and rail shield ZheJiang HIWIN linear guideway Tubular work lights, warning lights
    12 tools magazine
    funnel type    		 Spindle servo motor:
    speed 8000rpm    		 machine total power 11KW

    Optional Accessories

    System:Siemens 808D Fanuc 0i-mf Mitsubishi M80
    16 tools magazine arm type    

    Company Profile

     

    Types of Splines

    There are 4 types of splines: Involute, Parallel key, helical, and ball. Learn about their characteristics. And, if you’re not sure what they are, you can always request a quotation. These splines are commonly used for building special machinery, repair jobs, and other applications. The CZPT Manufacturing Company manufactures these shafts. It is a specialty manufacturer and we welcome your business.
    splineshaft

    Involute splines

    The involute spline provides a more rigid and durable structure, and is available in a variety of diameters and spline counts. Generally, steel, carbon steel, or titanium are used as raw materials. Other materials, such as carbon fiber, may be suitable. However, titanium can be difficult to produce, so some manufacturers make splines using other constituents.
    When splines are used in shafts, they prevent parts from separating during operation. These features make them an ideal choice for securing mechanical assemblies. Splines with inward-curving grooves do not have sharp corners and are therefore less likely to break or separate while they are in operation. These properties help them to withstand high-speed operations, such as braking, accelerating, and reversing.
    A male spline is fitted with an externally-oriented face, and a female spline is inserted through the center. The teeth of the male spline typically have chamfered tips to provide clearance with the transition area. The radii and width of the teeth of a male spline are typically larger than those of a female spline. These specifications are specified in ANSI or DIN design manuals.
    The effective tooth thickness of a spline depends on the involute profile error and the lead error. Also, the spacing of the spline teeth and keyways can affect the effective tooth thickness. Involute splines in a splined shaft are designed so that at least 25 percent of the spline teeth engage during coupling, which results in a uniform distribution of load and wear on the spline.

    Parallel key splines

    A parallel splined shaft has a helix of equal-sized grooves around its circumference. These grooves are generally parallel or involute. Splines minimize stress concentrations in stationary joints and allow linear and rotary motion. Splines may be cut or cold-rolled. Cold-rolled splines have more strength than cut spines and are often used in applications that require high strength, accuracy, and a smooth surface.
    A parallel key splined shaft features grooves and keys that are parallel to the axis of the shaft. This design is best suited for applications where load bearing is a primary concern and a smooth motion is needed. A parallel key splined shaft can be made from alloy steels, which are iron-based alloys that may also contain chromium, nickel, molybdenum, copper, or other alloying materials.
    A splined shaft can be used to transmit torque and provide anti-rotation when operating as a linear guide. These shafts have square profiles that match up with grooves in a mating piece and transmit torque and rotation. They can also be easily changed in length, and are commonly used in aerospace. Its reliability and fatigue life make it an excellent choice for many applications.
    The main difference between a parallel key splined shaft and a keyed shaft is that the former offers more flexibility. They lack slots, which reduce torque-transmitting capacity. Splines offer equal load distribution along the gear teeth, which translates into a longer fatigue life for the shaft. In agricultural applications, shaft life is essential. Agricultural equipment, for example, requires the ability to function at high speeds for extended periods of time.
    splineshaft

    Involute helical splines

    Involute splines are a common design for splined shafts. They are the most commonly used type of splined shaft and feature equal spacing among their teeth. The teeth of this design are also shorter than those of the parallel spline shaft, reducing stress concentration. These splines can be used to transmit power to floating or permanently fixed gears, and reduce stress concentrations in the stationary joint. Involute splines are the most common type of splined shaft, and are widely used for a variety of applications in automotive, machine tools, and more.
    Involute helical spline shafts are ideal for applications involving axial motion and rotation. They allow for face coupling engagement and disengagement. This design also allows for a larger diameter than a parallel spline shaft. The result is a highly efficient gearbox. Besides being durable, splines can also be used for other applications involving torque and energy transfer.
    A new statistical model can be used to determine the number of teeth that engage for a given load. These splines are characterized by a tight fit at the major diameters, thereby transferring concentricity from the shaft to the female spline. A male spline has chamfered tips for clearance with the transition area. ANSI and DIN design manuals specify the different classes of fit.
    The design of involute helical splines is similar to that of gears, and their ridges or teeth are matched with the corresponding grooves in a mating piece. It enables torque and rotation to be transferred to a mate piece while maintaining alignment of the 2 components. Different types of splines are used in different applications. Different splines can have different levels of tooth height.

    Involute ball splines

    When splines are used, they allow the shaft and hub to engage evenly over the shaft’s entire circumference. Because the teeth are evenly spaced, the load that they can transfer is uniform and their position is always the same regardless of shaft length. Whether the shaft is used to transmit torque or to transmit power, splines are a great choice. They provide maximum strength and allow for linear or rotary motion.
    There are 3 basic types of splines: helical, crown, and ball. Crown splines feature equally spaced grooves. Crown splines feature involute sides and parallel sides. Helical splines use involute teeth and are often used in small diameter shafts. Ball splines contain a ball bearing inside the splined shaft to facilitate rotary motion and minimize stress concentration in stationary joints.
    The 2 types of splines are classified under the ANSI classes of fit. Fillet root splines have teeth that mesh along the longitudinal axis of rotation. Flat root splines have similar teeth, but are intended to optimize strength for short-term use. Both types of splines are important for ensuring the shaft aligns properly and is not misaligned.
    The friction coefficient of the hub is a complex process. When the hub is off-center, the center moves in predictable but irregular motion. Moreover, when the shaft is centered, the center may oscillate between being centered and being off-center. To compensate for this, the torque must be adequate to keep the shaft in its axis during all rotation angles. While straight-sided splines provide similar centering, they have lower misalignment load factors.
    splineshaft

    Keyed shafts

    Essentially, splined shafts have teeth or ridges that fit together to transfer torque. Because splines are not as tall as involute gears, they offer uniform torque transfer. Additionally, they provide the opportunity for torque and rotational changes and improve wear resistance. In addition to their durability, splined shafts are popular in the aerospace industry and provide increased reliability and fatigue life.
    Keyed shafts are available in different materials, lengths, and diameters. When used in high-power drive applications, they offer higher torque and rotational speeds. The higher torque they produce helps them deliver power to the gearbox. However, they are not as durable as splined shafts, which is why the latter is usually preferred in these applications. And while they’re more expensive, they’re equally effective when it comes to torque delivery.
    Parallel keyed shafts have separate profiles and ridges and are used in applications requiring accuracy and precision. Keyed shafts with rolled splines are 35% stronger than cut splines and are used where precision is essential. These splines also have a smooth finish, which can make them a good choice for precision applications. They also work well with gears and other mechanical systems that require accurate torque transfer.
    Carbon steel is another material used for splined shafts. Carbon steel is known for its malleability, and its shallow carbon content helps create reliable motion. However, if you’re looking for something more durable, consider ferrous steel. This type contains metals such as nickel, chromium, and molybdenum. And it’s important to remember that carbon steel is not the only material to consider.

    China Hot selling Hot Sale Vmc600 High Precision CNC Milling Cutting Drilling and Engraving Vertical Machining Center CNC Machine with Free Design CustomChina Hot selling Hot Sale Vmc600 High Precision CNC Milling Cutting Drilling and Engraving Vertical Machining Center CNC Machine with Free Design Custom