A constant velocity joint earless collar press fitting machine

Abstract

The application relates to a constant velocity joint earless collar press mounting machine, which comprises a rack, a press mounting mechanism is installed on the rack, the press mounting mechanism comprises a mounting ring, driving blocks, clamping blocks and a power assembly, the mounting ring is installed on the rack, the driving blocks are provided in a plurality of blocks, the driving blocks are uniformly distributed in the circumferential direction of the mounting ring and slide on the mounting ring towards the direction close to or away from the center of the mounting ring, the clamping blocks are provided in a plurality of blocks corresponding to the driving blocks, the clamping blocks are respectively fixed on the driving blocks, one end of the clamping block fixed on the driving block is towards the center of the mounting ring, the power assembly is installed on the mounting ring, and the power assembly drives all the driving blocks to synchronously slide. The application has the effect of improving the locking efficiency of the collar.

Description

Technical Field

[0001] This application relates to the field of automotive parts manufacturing, and in particular to a constant velocity universal joint press-fitting machine without lug rings. Background Technology

[0002] As a core component of the automotive chassis drive system, the fixed constant velocity joint (CV joint) mainly consists of a bell-shaped housing, a three-post groove housing, an inner star wheel, a cage, steel balls, a gear ring, a large-end nut, and a retaining ring. The retaining ring is primarily used to fix and position internal components, ensuring they work together and maintain optimal performance. Once tightened, the retaining ring must not loosen, and the tightened area should be installed in a basically linear manner. The quality of the locking directly affects the performance of the CV joint.

[0003] The existing Chinese invention patent with publication number CN117404402A discloses a press fitting machine, including a frame, a clamping mechanism, a positioning mechanism and a press fitting mechanism mounted on the frame. The clamping mechanism clamps and transports the drive shaft assembly to the positioning mechanism for positioning. The press fitting mechanism applies pressure to the clamping ring to tighten the dust cover onto the outer ball cage.

[0004] The existing press fitting machine uses a conical positioning fixture for locking the earless stepless clamping ring. After the constant velocity joint is placed into the special fixture, it needs to be lifted up as the fixture is positioned to ensure that the clamping ring is locked in the required position. Once the position is correct, the clamping ring is locked. During the processing, it is necessary to lift and position the clamping ring before locking it, which is time-consuming and inefficient. Utility Model Content

[0005] To improve the efficiency of clamping ring locking, this application provides a constant velocity universal joint clamping machine without lugs.

[0006] The constant velocity universal joint press-fitting machine without lug rings provided in this application adopts the following technical solution:

[0007] A constant velocity universal joint without lug ring press-fitting machine includes a frame, on which a press-fitting mechanism is mounted. The press-fitting mechanism includes a mounting ring, drive blocks, clamping blocks, and a power assembly. The mounting ring is mounted on the frame. Several drive blocks are evenly distributed around the circumference of the mounting ring and slide towards or away from the center of the mounting ring. Several clamping blocks are corresponding to the drive blocks and are fixed to the drive blocks at the ends of the drive blocks facing the center of the mounting ring. The power assembly is mounted on the mounting ring and drives all drive blocks to slide synchronously.

[0008] By adopting the above technical solution, the drive block is slid horizontally by the power component, so that the clamping block can be pressed and locked in the horizontal direction. Compared with lifting and positioning before pressing and locking, the whole pressing and locking process is simpler and improves the efficiency of clamping ring locking. At the same time, there is no lifting step, and the clamping ring and clamping block can be directly aligned. There is no need to estimate the position of the clamping ring based on the lifting height of the clamping block, which also reduces the probability of errors in lifting and pressing the clamping block.

[0009] Optionally, the power assembly includes a power rack, a power gear, a power gear ring, and a drive rod. Several power racks are provided corresponding to the drive blocks, and several power racks are fixed on several drive blocks respectively. Several power gears are provided corresponding to the power racks. Several power gear rings mesh with several power racks respectively. The power gear rings are rotatably mounted on the mounting ring and mesh with all the power gears. The drive rod is fixed on the power gear ring.

[0010] By adopting the above technical solution, the rotation of the power gear ring is achieved by driving the drive rod, and the kinetic energy is transmitted to the drive block through the meshing of the power gear with the power gear ring and the power rack, thereby facilitating the synchronous sliding of the drive block.

[0011] Optionally, a positioning mechanism is provided on one side of the press-fitting mechanism of the frame. The positioning mechanism includes a positioning seat and a positioning sleeve. The positioning seat is installed on the frame, and the positioning sleeve is installed on the positioning seat.

[0012] By adopting the above technical solution, the positioning sleeve is placed outside the universal joint to position the universal joint that needs to be fitted with the clamping ring. The positioning mechanism can be used to support and position the universal joint, thereby facilitating the press-fitting and locking of the clamping ring.

[0013] Optionally, the positioning seat includes a fixed seat and a sliding rod. The fixed seat is fixed to the frame, the sliding rod is slidably disposed on the fixed seat, and the positioning sleeve is fixed on the sliding rod. The sliding rod drives the positioning sleeve to slide toward or away from the pressing mechanism.

[0014] By adopting the above technical solution, the height of the positioning sleeve can be adjusted by sliding rod, thereby enabling the positioning mechanism to be applicable to universal joints with different lengths of clamp rings and different installation positions, thus improving the applicability of the equipment.

[0015] Optionally, an adjusting component is provided between the fixed base and the sliding rod. The adjusting component includes an adjusting thread and an adjusting nut. The adjusting thread is formed on the sliding rod, and the adjusting nut is rotatably mounted on the fixed base. The adjusting nut is threadedly connected to the sliding rod.

[0016] By adopting the above technical solution, the sliding rod can slide on the fixed seat by adjusting the nut and adjusting the thread. At the same time, the direction of rotation of the adjusting nut is different from the direction of force on the sliding rod, which can reduce the probability of the sliding rod sliding due to the impact force when the universal joint is placed.

[0017] Optionally, the adjusting nut is circumferentially fixed with a gripping rod.

[0018] By adopting the above technical solution, the gripping lever can be easily driven to rotate the adjusting nut.

[0019] Optionally, a drive unit is mounted on the frame, and the drive unit is connected to a drive rod to drive the power gear ring to rotate.

[0020] By adopting the above technical solution, the configuration of the drive component can conveniently provide driving power to the power gear ring.

[0021] Optionally, the driving component is a hydraulic cylinder.

[0022] By adopting the above technical solution and using a drive cylinder as the drive component, the automatic drive of the power gear ring can be realized, which facilitates the drive of the power gear ring.

[0023] Optionally, a clamping mechanism is installed on the frame. The clamping mechanism includes a lead screw slide, a mounting plate, and pneumatic fingers. The lead screw slide is vertically mounted on the machine body. The mounting plate is slidably mounted on the lead screw slide. The pneumatic fingers are mounted on the mounting plate and are located on the side of the pressing mechanism opposite to the positioning mechanism.

[0024] By adopting the above technical solution, the clamping and conveying mechanism can conveniently clamp and convey universal joints.

[0025] Optionally, the driving element is a pressure rod.

[0026] By adopting the above technical solution and using the pressure rod as the driving component, the force required to drive the power gear ring can be reduced by increasing the length of the lever arm, which facilitates manual driving by the worker and also reduces the force required for manual driving.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. The drive block is slid horizontally by the power component, so that the clamping block can be pressed and locked in the horizontal direction. Compared with lifting and positioning before pressing and locking, the whole pressing and locking process is simpler and improves the efficiency of clamping ring locking. At the same time, there is no lifting step. The clamping ring and the clamping block can be directly aligned. There is no need to estimate the position of the clamping ring based on the lifting height of the clamping block, which also reduces the probability of errors in clamping ring lifting and pressing.

[0029] 2. The drive rod drives the rotation of the power gear ring, and the kinetic energy is transmitted to the drive block through the meshing of the power gear, the power gear ring, and the power rack, thus facilitating the synchronous sliding of the drive block;

[0030] 3. The positioning sleeve is placed on the outside of the universal joint to position the universal joint that needs to be fitted with the clamping ring. The positioning mechanism is designed to support and position the universal joint, thereby facilitating the press-fitting and locking of the clamping ring. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application.

[0032] Figure 2 This is a schematic diagram of the pressing mechanism in Embodiment 1 of this application.

[0033] Figure 3 This is a partial cross-sectional view of the overall structure of Embodiment 1 of this application.

[0034] Figure 4 yes Figure 3 A magnified view of section A in the middle.

[0035] Figure 5 This is a schematic diagram of the positioning mechanism in Embodiment 1 of this application.

[0036] Figure 6 This is a schematic diagram of the overall structure of Embodiment 2 of this application.

[0037] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Pressing mechanism; 21. Mounting ring; 211. Base plate; 212. Connecting pipe; 213. Cover plate; 22. Drive block; 23. Clamping block; 24. Power assembly; 241. Power rack; 242. Power gear; 243. Power gear ring; 244. Drive rod; 3. Guide mechanism; 31. Guide rail; 32. Guide slider; 4. Positioning mechanism; 41. Positioning seat; 411. Fixed seat; 412. Sliding rod; 42. Positioning sleeve; 5. Adjusting component; 51. Adjusting thread; 52. Adjusting nut; 6. Grip rod; 7. Drive component; 71. Drive cylinder; 72. Pressure rod; 8. Clamping mechanism; 81. Screw slide; 82. Mounting plate; 83. Pneumatic finger; 9. Limiting mechanism; 91. Limiting cylinder; 92. Limiting screw. Detailed Implementation

[0038] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0039] First, it should be noted that in the description of this application, the use of directional terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicates the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used solely for descriptive purposes and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the use of numerical quantifiers such as "first," "second," and "third" is for descriptive purposes only and should not be construed as indicating or implying relative importance. Additionally, in this application, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, interference fits, transition fits, or integral connections; they can refer to direct connections or indirect connections through an intermediate medium. Therefore, those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0040] Example 1:

[0041] This application discloses a constant velocity universal joint press-fitting machine without lug rings, referring to... Figure 1 and Figure 2The system includes a frame 1 mounted on the ground, on which a pressing mechanism 2 is installed. The pressing mechanism 2 includes a mounting ring 21, a drive block 22, a clamping block 23, and a power assembly 24. The mounting ring 21 is a circular ring body and is mounted on the frame 1. The mounting ring 21 includes a base plate 211, a connecting pipe 212, and a cover plate 213. The base plate 211 and the cover plate 213 are circular ring bodies. The connecting pipe 212 is a circular pipe body fixed to the frame 1 and is vertically fixed to the outer wall of the base plate 211. The cover plate 213 is detachably installed on the end of the connecting pipe 212 away from the base plate 211. Several drive blocks 22 are provided, which are evenly distributed around the circumference of the mounting ring 21 and slide towards or away from the center of the mounting ring 21. A guide mechanism 3 is provided between the drive blocks 22 and the base plate 211 to guide the movement of the drive blocks 22. The sliding of the drive block 22 is accompanied by the arrangement of several clamping blocks 23 corresponding to the drive block 22. Several clamping blocks 23 are fixed on several drive blocks 22 respectively. The clamping blocks 23 are fixed at the end of the drive block 22 facing the center of the mounting ring 21. In this embodiment, there are eight drive blocks 22 and eight clamping blocks 23. The power component 24 is installed on the mounting ring 21. The power component 24 drives all drive blocks 22 to slide synchronously. The drive blocks 22 slide in the horizontal direction through the power component 24, so that the clamping blocks 23 can be pressed and locked in the horizontal direction. Compared with lifting and positioning and then pressing and locking, the whole pressing and locking process is simpler and improves the efficiency of clamping ring locking. At the same time, there is no lifting step. The clamping ring and clamping blocks 23 can be directly aligned. There is no need to estimate the position of the clamping ring based on the lifting height of the clamping blocks 23, which also reduces the probability of errors in lifting and pressing of the clamping blocks 23.

[0042] Reference Figure 3 and Figure 4 The guide mechanism 3 includes a guide rail 31 and a guide slider 32. The guide rail 31 is mounted on the base plate 211, and the guide slider 32 is slidably mounted on the guide rail 31. The drive block 22 is mounted on the guide slider 32. The guide mechanism 3 makes the sliding of the drive block 22 smoother and more stable.

[0043] Reference Figure 2 , Figure 3 and Figure 4The power assembly 24 includes a power rack 241, a power gear 242, a power gear ring 243, and a drive rod 244. Several power racks 241 are arranged corresponding to the drive blocks 22. In this embodiment, eight power racks 241 are provided, each fixed to one of the drive blocks 22 by bolts. Eight power gears 242 are arranged corresponding to the power racks 241. Eight power gear rings 243 mesh with the eight power racks 241 respectively. The power gear rings 243 are rotatably mounted on the cover plate 213 of the mounting ring 21. In this embodiment, the power rack 241... The power gear ring 243 is an internal gear ring. The power gear ring 243 is rotatably mounted on the mounting ring 21. The power gear ring 243 meshes with all the power gears 242. The drive rod 244 is fixed on the power gear ring 243. The drive rod 244 passes through the connecting pipe 212 of the mounting ring 21 and extends out of the mounting ring 21. The rotation of the power gear ring 243 is achieved by driving the drive rod 244. The kinetic energy is transmitted to the drive block 22 through the meshing of the power gears 242 with the power gear ring 243 and the power rack 241, thereby facilitating the synchronous sliding of the drive block 22.

[0044] Reference Figure 1 and Figure 5 A positioning mechanism 4 is provided on one side of the press-fitting mechanism 2 within the frame 1. The positioning mechanism 4 includes a positioning seat 41 and a positioning sleeve 42. The positioning seat 41 is installed on the frame 1, and the positioning sleeve 42 is installed on the positioning seat 41. The positioning sleeve 42 is fitted over the universal joint to position the universal joint to which the clamping ring needs to be installed. The positioning mechanism 4 is designed to support and position the universal joint, thereby facilitating the press-fitting and locking of the clamping ring. The positioning seat 41 includes a fixed seat 411 and a sliding rod 412. The fixed seat 411 is fixed to the frame 1, and the sliding rod 412 is slidably mounted on the fixed seat 411. The positioning sleeve 42 is fixed on the sliding rod 412. The sliding rod 412 drives the positioning sleeve 42 to slide towards or away from the press-fitting mechanism 2. The height of the positioning sleeve 42 is adjusted by the sliding rod 412, thereby enabling the positioning mechanism 4 to... It is suitable for universal joints with different lengths and different installation positions of the clamping ring, thus improving the applicability of the equipment. An adjusting component 5 is provided between the fixed base 411 and the sliding rod 412. The adjusting component 5 includes an adjusting thread 51 and an adjusting nut 52. The adjusting thread 51 is formed on the sliding rod 412, and the adjusting nut 52 is rotatably set on the fixed base 411. The adjusting nut 52 is threadedly connected to the sliding rod 412. The sliding rod 412 can slide on the fixed base 411 by the adjusting nut 52 cooperating with the adjusting thread 51. At the same time, the direction of rotation of the adjusting nut 52 is different from the direction of force on the sliding rod 412, which can reduce the probability of the sliding rod 412 sliding due to the impact force when the universal joint is placed. A gripping rod 6 is fixedly provided circumferentially on the adjusting nut 52. The gripping rod 6 can easily drive the adjusting nut 52 to rotate.

[0045] Reference Figure 1 and Figure 2A drive component 7 is installed on the frame 1. The drive component 7 is connected to the drive rod 244 to drive the power gear ring 243 to rotate. The drive component 7 is a drive cylinder 71. One end of the drive cylinder 71 is hinged to the frame 1, and the other end is hinged to the drive rod 244. The extension and retraction of the piston rod of the drive cylinder 71 can drive the drive rod 244 to slide and rotate on the mounting ring 21. The setting of the drive component 7 can conveniently provide driving power for the power gear ring 243. Using the drive cylinder 71 as the drive component 7 can realize the automated driving of the power gear ring 243 and facilitate the driving of the power gear ring 243.

[0046] Reference Figure 1 and Figure 3 The frame 1 is equipped with a clamping mechanism 8, which includes a lead screw slide 81, a mounting plate 82, and pneumatic fingers 83. The lead screw slide 81 is vertically mounted on the frame 1, the mounting plate 82 is slidably mounted on the lead screw slide 81, and the pneumatic fingers 83 are mounted on the mounting plate 82. The pneumatic fingers 83 are located on the side of the pressing mechanism 2 away from the positioning mechanism 4. The clamping mechanism 8 can conveniently clamp and transport the universal joint.

[0047] The implementation principle of this application embodiment is as follows: the positioning mechanism 4 is adjusted to a suitable position, the universal joint is clamped by the clamping mechanism 8, and then the universal joint is transported into the insertion positioning sleeve 42 for fixation. Then, the driving cylinder 71 drives the power assembly 24 to make the driving block 22 slide and drive the clamping block 23 to press and lock the clamping ring on the universal joint, thus completing the installation of the clamping ring on the universal joint.

[0048] Example 2:

[0049] The difference between this embodiment and Embodiment 1 lies in the fact that the driving component 7 is different from that in Embodiment 1.

[0050] Reference Figure 6 The driving component 7 is a pressure rod 72. By using the pressure rod 72 as the driving component 7, the force required to drive the power gear ring 243 can be reduced by increasing the length of the lifting arm, which facilitates manual driving by the worker and reduces the force required for manual driving. A limiting mechanism 9 is installed on the frame 1. The limiting mechanism 9 includes a limiting cylinder 91 and a limiting screw 92. The limiting cylinder 91 is installed on the frame 1, and the limiting screw 92 is threaded into the limiting cylinder 91. The height of the limiting screw 92 can be adjusted by rotating it. The driving rod 244 abuts against the limiting screw 92 by rotating it, thereby limiting the driving rod 244 by the limiting mechanism 9. The setting of the limiting mechanism 9 can reduce the probability of damage to the power mechanism due to excessive force acting on the driving rod 244. In this embodiment, the mounting ring 21 is placed vertically and the clamping mechanism 8 is not installed, thereby reducing the weight of the equipment and making the equipment easy to carry.

[0051] The implementation principle of this application embodiment is as follows: Adjust the positioning mechanism 4 to a suitable position, and transport the universal joint into the insertion positioning sleeve 42 for fixing by manual installation. Then, the worker drives the pressure rod 72 to rotate and drive the power assembly 24 to make the drive block 22 slide and drive the clamping block 23 to press and lock the clamping ring on the universal joint, thus completing the installation of the clamping ring on the universal joint.

[0052] It should be noted that the above embodiments are only used to illustrate this application and are not intended to limit the technical solutions described in this application. Although this specification has described this application in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to this application. All technical solutions and improvements that do not depart from the spirit and scope of this application should be covered within the scope of the claims of this application.

Claims

1. A constant velocity universal joint without lug ring press-fitting machine, comprising a frame (1), wherein a press-fitting mechanism (2) is mounted on the frame (1), characterized in that: The pressing mechanism (2) includes a mounting ring (21), a drive block (22), a clamping block (23), and a power assembly (24). The mounting ring (21) is mounted on the frame (1). The drive block (22) has several blocks, which are evenly distributed around the circumference of the mounting ring (21) and slide towards or away from the center of the mounting ring (21). The clamping block (23) is arranged corresponding to the drive block (22), and is fixed on the drive block (22). The clamping block (23) is fixed at one end of the drive block (22) towards the center of the mounting ring (21). The power assembly (24) is mounted on the mounting ring (21) and drives the press. The drive block (22) slides synchronously; the power assembly (24) includes a power rack (241), a power gear (242), a power gear ring (243) and a drive rod (244). The power rack (241) is provided in several ways corresponding to the drive block (22). The power rack (241) is fixed on the drive block (22) respectively. The power gear (242) is provided in several ways corresponding to the power rack (241). The power gear ring (243) meshes with the power rack (241) respectively. The power gear ring (243) is rotatably set on the mounting ring (21). The power gear ring (243) meshes with all the power gears (242). The drive rod (244) is fixed on the power gear ring (243).

2. The constant velocity universal joint press-fitting machine without lug rings according to claim 1, characterized in that: The frame (1) is provided with a positioning mechanism (4) on one side of the pressing mechanism (2). The positioning mechanism (4) includes a positioning seat (41) and a positioning sleeve (42). The positioning seat (41) is installed on the frame (1), and the positioning sleeve (42) is installed on the positioning seat (41).

3. The constant velocity universal joint press-fitting machine without lug rings according to claim 2, characterized in that: The positioning seat (41) includes a fixed seat (411) and a sliding rod (412). The fixed seat (411) is fixed to the frame (1). The sliding rod (412) is slidably disposed on the fixed seat (411). The positioning sleeve (42) is fixed on the sliding rod (412). The sliding rod (412) drives the positioning sleeve (42) to slide towards or away from the pressing mechanism (2).

4. A constant velocity universal joint press-fitting machine without lug rings according to claim 3, characterized in that: An adjusting component (5) is provided between the fixed base (411) and the sliding rod (412). The adjusting component (5) includes an adjusting thread (51) and an adjusting nut (52). The adjusting thread (51) is formed on the sliding rod (412), and the adjusting nut (52) is rotatably set on the fixed base (411). The adjusting nut (52) is threadedly connected to the sliding rod (412).

5. A constant velocity universal joint press-fitting machine without lug rings according to claim 4, characterized in that: The adjusting nut (52) is circumferentially fixed with a gripping rod (6).

6. A constant velocity universal joint press-fitting machine without lug rings according to claim 5, characterized in that: A drive unit (7) is installed on the frame (1), and the drive unit (7) is connected to a drive rod (244) to drive the power gear ring (243) to rotate.

7. A constant velocity universal joint press-fitting machine without lug rings according to claim 6, characterized in that: The driving component (7) is a driving cylinder (71).

8. A constant velocity universal joint press-fitting machine without lug rings according to claim 7, characterized in that: The frame (1) is equipped with a clamping mechanism (8), which includes a lead screw slide (81), a mounting plate (82) and a pneumatic finger (83). The lead screw slide (81) is vertically mounted on the machine body. The mounting plate (82) is slidably mounted on the lead screw slide (81). The pneumatic finger (83) is mounted on the mounting plate (82) and is located on the side of the pressing mechanism (2) away from the positioning mechanism (4).

9. A constant velocity universal joint press-fitting machine without lug rings according to claim 6, characterized in that: The driving component (7) is a pressure rod (72).

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