Roller clamp spring mounting equipment

By designing a roller spring installation device including a filler mechanism, a feeding mechanism and a feeding mechanism, the problem of inaccurate installation of the spring in the drum is solved, and the automatic installation of the spring is realized, which significantly improves the accuracy and efficiency of the installation.

CN120055784APending Publication Date: 2025-05-30SHANGHAI HIRONO MATERIAL CO LTD
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Patent Information

Application Number
CN202510471267.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-15
Publication Date
2025-05-30

AI Technical Summary

Technical Problem

The prior art is difficult to ensure the accurate installation of the spring in the drum, especially when strict attitude control is required, manual operation can easily lead to errors and reduce work efficiency.

Method used

A roller spring installation device including a filler mechanism, a feeding mechanism and a transfer mechanism is designed. Through the synergy of pre-pressing components, crimping components and drive components, the automatic installation of the spring is achieved to ensure the stability and accuracy of the spring during the installation process.

Benefits of technology

It significantly reduces the error rate of manual operation, improves the accuracy and efficiency of spring installation, and adapts to the needs of efficient production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to roller snap spring mounting equipment, and relates to the technical field of automatic assembly. The device mainly comprises a filling mechanism, a feeding mechanism and a material moving mechanism, wherein the filling mechanism comprises a pre-pressing assembly for pre-pressing the snap spring, a crimping assembly for pressing the snap spring and a driving assembly for driving the pre-pressing assembly and the crimping assembly; the filling mechanism comprises a swing assembly used for transferring the clamp springs and a material fixing assembly used for fixing the clamp springs. The filling mechanism further comprises a shell used for installing the driving assembly, the pre-pressing assembly and the crimping assembly, and the material moving mechanism is located below the filling mechanism. The clamping spring is moved to the position above the rolling wheel through the material moving mechanism, and the pre-pressing assembly has the effect that when the clamping spring is formally pressed in, the clamping spring is pressed into a roller opening of the rolling wheel firstly, and the clamping spring is pre-installed in a correct posture. The clamp spring assembling device has the technical effect of automatically assembling the clamp spring.
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Description

Technical Field

[0001] This application relates to the field of automated assembly technology, and in particular, to a roller circlip installation device. Background Art

[0002] The installation of roller circlips is one of the important links in modern industrial production. With the rapid development of the manufacturing industry, automation and high efficiency have become the key factors for enterprises to enhance their competitiveness. Especially in the process of assembling precision components, how to improve the operation accuracy and efficiency has become the focus of the industry. As a common mechanical part, circlips are widely used in various mechanical equipment, and their installation quality directly affects the performance stability and service life of the overall equipment.

[0003] At present, several traditional methods are usually adopted to solve the circlip installation problem in actual production. First is the pure manual method, that is, relying on skilled workers to manually complete the compression and positioning work using special tools such as circlip pliers; second is the application of simple auxiliary devices, such as using jigs to help maintain the shape of the circlip for easy insertion into the target position; thirdly, a semi-automated simple pushing mechanism may be adopted, which uses air pressure or spring force to push the circlip into the specified part. Although these methods have their own characteristics, there are still many limitations at the specific implementation level.

[0004] The above common means generally face a problem: it is difficult to ensure that the circlip is accurately and smoothly inserted into the drum in the established direction. Especially in the case where strict attitude control is required (such as must be kept parallel), manual operation is prone to a high error probability due to lack of experience or fatigue, and the long training cycle for new employees further reduces the overall work efficiency. Therefore, there is an urgent need for a novel solution that can effectively overcome these problems to meet the growing demand for high-quality production. Summary of the Invention

[0005] To solve the above problems, this application provides a roller circlip installation device.

[0006] A roller circlip installation device provided by this application adopts the following technical solutions: A roller circlip installation device includes a stuffing mechanism, a feeding mechanism, and a material transfer mechanism. The stuffing mechanism includes a pre-pressing component for pre-pressing the circlip, a crimping component for pressing the circlip in, and a driving component for driving the pre-pressing component and the crimping component; The stuffing mechanism includes a swinging component for transferring the circlip and a solid material component for fixing the circlip; The stuffing mechanism further includes a housing for installing the driving component, the pre-pressing component, and the crimping component. The material transfer mechanism is located below the stuffing mechanism. By adopting the above technical solution, the function of automatically installing the circlip is realized, and the need for manual operation is significantly reduced. The stuffing mechanism can complete the pre-pressing and pressing-in actions of the circlip, ensuring the stability of the circlip during installation and avoiding the installation failure problem caused by angle deviation in traditional manual operation. The feeding mechanism cooperates with the stuffing mechanism to improve the continuity and accuracy of circlip supply. The material transfer mechanism is responsible for precisely transferring the circlip to the target position, further improving the installation efficiency. The device effectively reduces the error rate caused by human factors, thereby greatly improving the production efficiency and product quality.

[0007] Preferably, the driving component includes a transmission shaft, on which a worm bushing is sleeved; A clamping joint is also fixedly arranged on the transmission shaft. The longitudinal section of the clamping joint is circular, and a tooth is formed on the longitudinal periphery of the clamping joint to form a socket tooth. An inner transmission rod is fixedly arranged at the center of the clamping joint; An a-cam is movably sleeved on the inner transmission rod. A clamping tooth meshing with the socket tooth is arranged on the side of the a-cam. A spring a is sleeved on the inner transmission rod between the socket tooth and the clamping tooth; A fastening component is fixedly arranged on the side of the a-cam away from the clamping joint. The shape of the fastening component is a frustum of a cone.

[0008] By adopting the above technical solution, precise control of the driving component is realized. Specifically, the worm bushing on the transmission shaft improves the transmission stability and reduces wear. The design of the clamping joint ensures the accuracy of power transmission through the meshing of the socket tooth with the clamping tooth on the a-cam, and uses the spring a to achieve the automatic reset function, improving the reliability of the operation. The frustum shape design of the fastening component facilitates cooperation with other components, further enhancing the overall coordination of the device, thereby effectively reducing the operation difficulty during manual installation of the circlip, reducing the error rate, and improving the production efficiency.

[0009] Preferably, the pre-pressing component includes a connecting rod, which includes a rod body, a top joint at the top of the rod body, and a pre-pressing head at the bottom of the rod body. The top joint, the rod body, and the pre-pressing head form a Z shape. A spring b and a retaining sleeve are installed below the top joint. The top of the spring b is clamped with the bottom of the top joint. The rod body slides through the retaining sleeve.

[0010] By adopting the above technical solution, the connecting rod in the preloading assembly is designed as a Z-shaped structure composed of a top joint, a rod body, and a preloading head. This structure can achieve effective pre-compression operation on the circlip, while ensuring more stable and accurate force transmission. The spring b provided below the top joint can provide an elastic restoring force to ensure that the circlip can quickly reset after the preloading process is completed, improving work efficiency. The design that the rod body slides through the retaining sleeve further enhances the stability of the connecting rod movement, avoiding deviation or jamming phenomena, thereby significantly reducing the operation difficulty and error rate when manually installing the circlip and improving the overall production efficiency.

[0011] Preferably, the crimping assembly includes a crimping shaft, a crimping head is provided at the bottom of the crimping shaft, the press head extends towards the bottom of the housing, and a cam b is also fixedly provided on the inner transmission rod. The cam b is placed on the top of the crimping shaft and is used to drive the crimping shaft to move downward; a clamping shoulder is provided on one side of the crimping shaft close to the crimping head, and a spring c is sleeved on the crimping head, and the top of the spring c is clamped with the clamping shoulder.

[0012] By adopting the above technical solution, the crimping assembly can achieve the automatic pressing-in function of the circlip. Specifically, the cam b drives the crimping shaft to move downward, so that the crimping head accurately presses the preloaded circlip into the drum, ensuring a stable and reliable installation process. The design of the spring c can provide a buffering effect during the crimping process, avoiding damage to the circlip or the drum caused by excessive crimping force, thereby improving the assembly accuracy and the service life of the equipment.

[0013] Preferably, a reset rod is also fixedly provided at the top of the crimping shaft. A ball sleeve is fixedly provided at one end of the reset rod facing the fastening member. A rolling ball is rotatably installed in the ball sleeve, and the rolling ball can abut against the fastening member.

[0014] By adopting the above technical solution, the cooperation between the reset rod and the fastening member can achieve accurate reset of the crimping shaft. When the crimping shaft completes the pressing-in action of the circlip, the rolling ball in the ball sleeve at the end of the reset rod contacts the fastening member, and the rolling characteristics of the rolling ball are used to reduce the frictional resistance, ensuring that the crimping shaft quickly and smoothly returns to the initial position, thereby improving the work efficiency and stability of the equipment.

[0015] Preferably, a first connecting plate is fixedly installed on the side of the crimping shaft. A chute is provided at the position of the housing corresponding to the first connecting plate so that the first connecting plate can slide up and down in the chute. A second connecting plate is perpendicularly installed at one end of the first connecting plate away from the crimping shaft. A third connecting rod is perpendicularly installed at the end of the second connecting plate. A lead screw is perpendicularly installed at one end of the third connecting rod away from the second connecting plate. A guiding inclined surface is provided on the side of the lead screw.

[0016] By adopting the above technical solutions, stable guiding and precise positioning during the movement of the crimping shaft are achieved. The first connecting plate cooperates with the chute on the housing to ensure the stability of the crimping shaft during up and down movement, avoiding deviation or shaking; the combined structure of the second connecting plate, the third connecting rod, and the lead screw further enhances the rationality of the device's spatial layout. Among them, the guiding inclined plane on the lead screw can provide precise guiding at specific positions, thereby improving the consistency and reliability of circlip installation. This design effectively reduces manual operation errors and improves production efficiency.

[0017] Preferably, the material transfer mechanism includes a swinging assembly and a material fixing assembly. The swinging assembly includes a swinging shaft, and a torsion spring is sleeved on the swinging shaft.

[0018] By adopting the above technical solutions, the material transfer mechanism realizes the stable transfer of the circlip through the cooperation of the swinging assembly and the material fixing assembly. The swinging shaft in the swinging assembly can flexibly adjust the angle, and with the help of the torsion spring sleeved on it, it provides a restoring force to ensure that the circlip always maintains an accurate posture during the transfer process, avoiding problems such as assembly failure caused by inclination, thereby significantly improving the success rate and working efficiency of circlip installation.

[0019] Preferably, a guiding roller is rotatably installed on the swinging shaft.

[0020] By adopting the above technical solutions, the setting of the guiding roller enables the circlip to move more smoothly along the predetermined path during the transmission process.

[0021] Preferably, the material fixing assembly includes a support rod and a fixing rod. The support rod is installed on the swinging shaft, and the fixing rod is vertically downwardly installed at the end of the support rod.

[0022] By adopting the above technical solutions, the automatic installation of the circlip in the roller is realized. Specifically, through the design of the support rod and the fixing rod, the material fixing assembly can firmly hold the circlip, ensuring its position stability and accuracy during the installation process, thereby avoiding installation failure problems caused by improper manual operation.

[0023] Preferably, the feeding mechanism includes a pushing cylinder and a circlip sleeve. The pushing cylinder is placed at the bottom of the circlip sleeve, and the output shaft of the pushing cylinder extends into the circlip sleeve and is fixedly connected with a piston. By adopting the above technical solutions, the automatic feeding function of the circlip is realized. The design of the pushing cylinder cooperating with the circlip sleeve can accurately push the circlip to the designated position.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. Through the coordinated action of the pre-pressing component and the crimping component, the filling mechanism can accurately control the compression state and parallelism of the circlip, significantly reducing the error rate during the installation process and improving production efficiency; 2. The driving component works in cooperation with the preloading component and the crimping component to achieve automated operation, reduce manual intervention, shorten the training time for new employees, and meet the needs of high-efficiency production. 3. The material transfer mechanism combines the swinging component and the solid material component to ensure the stability of the circlip during transmission and positioning, avoid attitude deviation, and thus ensure the smooth loading of the circlip into the drum. Description of the Drawings

[0025] Figure 1 and Figure 2 are the three-dimensional views of the present application; Figure 3 are the cross-sectional views of the present application; Figure 4 is the partial enlarged view showing the installation position of the circlip; Figure 5 is the cross-sectional view of the internal structure of the circlip sleeve.

[0026] Description of the Reference Numerals: 1. Housing; 2. Transmission shaft; 21. Worm bushing; 22. Card joint; 23. Inner transmission rod; 24. Spring a; 25. Cam a; 26. Fastening member; 27. Card teeth; 28. Socket teeth; 29. Cam b; 31. Link; 311. Rod body; 312. Top joint; 313. Preloading head; 32. Retaining sleeve; 33. Spring b; 41. Switching rod; 411. Ball sleeve; 412. Ball; 42. Crimping shaft; 421. Card shoulder; 423. Spring c; 422. Crimping head; 43. Reset rod; 431. First connecting plate; 432. Second connecting plate; 433. Third connecting rod; 434. Lead rod; 435. Guide slope; 11. Chute; 51. Pushing cylinder; 511. Piston; 512. Circlip sleeve; 61. Swinging shaft; 611. Torsion spring; 612. Guide roller; 621. Support rod; 622. Fixed rod. Detailed Description of the Embodiment

[0027] The following further describes the present application in detail with reference to the Figures 1-5 drawings.

[0028] In the description of the invention, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0029] The embodiment of the present application discloses a roller circlip installation device. Refer to Figure 1 , Figure 2 and Figure 3, including a stuffing mechanism, a feeding mechanism and a material transfer mechanism. The stuffing mechanism includes a pre-pressing assembly for pre-pressing the circlip, a crimping assembly for pressing the circlip in, and a driving assembly for driving the pre-pressing assembly and the crimping assembly; the stuffing mechanism includes a swinging assembly for transferring the circlip and a solid material assembly for fixing the circlip; the stuffing mechanism further includes a housing 1 for installing the driving assembly, the pre-pressing assembly and the crimping assembly, and the material transfer mechanism is located below the stuffing mechanism. The circlip is moved above the roller by the material transfer mechanism. The main function of the pre-pressing assembly is to first press the circlip into the roller opening when the circlip is officially pressed in, and pre-install the circlip in the correct posture. After pre-installation, the crimping assembly pushes the circlip into a predetermined position inside the roller. During this process, the driving assembly provides power and a motion mode for the cooperation between the pre-pressing assembly and the crimping assembly.

[0030] The driving assembly includes a transmission shaft 2, and a worm bushing 21 is sleeved on the transmission shaft 2; the worm bushing 21 is fixed on the transmission shaft and does not generate relative displacement with the transmission shaft 2. The worm bushing 21 is connected to an external driving source. In the embodiment of the present application, a motor is used to drive the worm wheel to form a worm and worm wheel drive to provide greater torque for the equipment.

[0031] A clamping joint 22 is also fixedly arranged on the transmission shaft 2. The longitudinal section of the clamping joint 22 is circular, and a tooth is provided on the longitudinal periphery of the clamping joint 22 to form a socket tooth 28. Due to the opening of the socket tooth 28, a blank area is formed in the central part of the clamping joint 22. An inner transmission rod 23 is fixedly arranged in the center of the clamping joint 22. The inner transmission rod 23 is set to a certain length. A cam a25 is movably sleeved on the inner transmission rod 23. A clamping tooth 27 meshing with the socket tooth 28 is provided on the side of the cam a25. The clamping tooth 27 is matched with the socket tooth 28. A spring a24 is sleeved on the inner transmission rod 23 between the socket tooth 28 and the clamping tooth 27. When the clamping tooth 27 meshes with the socket tooth 28, the spring a24 is compressed, so as to provide a driving force when the clamping tooth 27 is separated from the socket tooth 28.

[0032] On the side of the cam a25 away from the clamping joint 22, a fastening member 26 is fixedly arranged. The shape of the fastening member 26 is a frustum of a cone, and the wide surface of the fastening member 26 is fixed to the side surface of the cam a25. The preloading assembly includes a connecting rod 31. The connecting rod 31 includes a rod body 311, a top joint 312 at the top of the rod body 311, and a preloading head 313 at the bottom of the rod body 311. The top joint 312, the rod body 311, and the preloading head 313 form a Z shape. A spring b33 and a retaining sleeve 32 are installed below the top joint 312. The top of the spring b33 is clamped to the bottom of the top joint 312. The rod body 311 slides through the retaining sleeve 32. The retaining sleeve 32 is fixed in the housing 1 and is used to keep the posture of the rod body 311 stable when sliding up and down. An installation groove for installing the spring b33 is opened in the housing 1 so that the bottom of the spring b33 can abut against the housing 1. When the connecting rod 31 moves downward, the bottom of the top joint 312 can compress the spring b33 downward and store energy to reset (move upward) the connecting rod 31.

[0033] The crimping assembly includes a crimping shaft 42. A crimping head 422 is arranged at the bottom of the crimping shaft 42. The press head extends towards the bottom of the housing 1. A cam b29 is also fixedly arranged on the inner transmission rod 23. The cam b29 is driven by the inner transmission rod 23 to rotate. The cam b29 is placed on the top of the crimping shaft 42 and drives the crimping shaft 42 to move downward; a clamping shoulder 421 is opened on one side of the crimping shaft 42 close to the crimping head 422. A spring c423 is sleeved on the crimping head 422. The top of the spring c423 is clamped to the clamping shoulder 421. After the crimping shaft 42 moves downward, it compresses the spring c423 and resets through the spring c423, so as to cooperate with the cam b29 to realize the up and down movement of the crimping shaft 42. A reset rod 43 is also fixedly arranged at the top of the crimping shaft 42. A ball sleeve 411 is fixedly arranged at one end of the reset rod 43 facing the fastening member 26. A rolling ball 412 is rotatably installed in the ball sleeve 411. The rolling ball 412 can abut against the fastening member 26. Since the reset rod 43 is fixedly arranged at the top of the crimping shaft 42, the reset rod 43 moves along with the movement of the crimping shaft 42. When the crimping shaft 42 is driven to move upward by the spring c423, it will make the rolling ball 412 contact with the fastening member 26. Since the fastening member 26 is set in the shape of a frustum of a cone, and the cam a25 is movably sleeved on the inner transmission rod 23, when contacting the rolling ball 412, it will push the cam a25 towards the direction of the clamping joint 22 and finally make the socket teeth 28 engage with the clamping teeth 27.

[0034] A first connecting plate 431 is fixedly installed on the side surface of the crimping shaft 42. A chute 11 is provided on the housing 1 corresponding to the position of the first connecting plate 431 so that the first connecting plate 431 can slide up and down in the chute 11. A second connecting plate 432 is perpendicularly installed at one end of the first connecting plate 431 away from the crimping shaft 42. A third connecting rod 433 is perpendicularly installed at the end of the second connecting plate 432. A lead screw 434 is perpendicularly installed at one end of the third connecting rod 433 away from the second connecting plate 432. A guiding inclined surface 435 is provided on the side surface of the lead screw 434. The material transfer mechanism includes a swinging assembly and a material fixing assembly. The swinging assembly includes a swinging shaft 61, and a torsion spring 611 is sleeved on the swinging shaft 61. A guiding roller 612 is rotatably installed on the swinging shaft 61. When the crimping shaft 42 moves downward, it will drive the first connecting plate 431 to move downward synchronously. The position of the swinging shaft 61 is set at the bottom of the lead screw 434 so that the lead screw 434 can abut against the guiding roller when following the first connecting plate 431 to descend. The guiding roller can rotate relative to the swinging shaft 61. Due to the setting of the guiding inclined surface 435, when the guiding inclined surface 435 contacts the guiding roller, it can make the guiding roller roll along the guiding inclined surface 435, thereby driving the swinging shaft 61 to rotate. When the crimping shaft 42 moves upward, the guiding roller 612 separates from the lead screw 434, and the swinging shaft 61 returns to its original position under the elastic force of the torsion spring 611.

[0035] Referring to Figure 1 , Figure 4 and Figure 5 , the material fixing assembly includes a support rod 621 and a fixing rod 622. The support rod 621 is installed on the swinging shaft 61. The fixing rod 622 is perpendicularly installed downward at the end of the support rod 621. There are two fixing rods 622, and the two fixing rods 622 are inserted into the circlip to fix the circlip. The feeding mechanism includes a pushing cylinder 51 and a circlip sleeve 512. The pushing cylinder 51 is placed at the bottom of the circlip sleeve 512. The output shaft of the pushing cylinder 51 extends into the circlip sleeve 512 and is fixedly connected with a piston 511. The inner diameter size of the circlip sleeve 512 is adjustable. By presetting the inner diameter size of the circlip sleeve 512, the circlip placed in the circlip sleeve 512 can be compressed so that the circlip can extend into the roller. The pushing cylinder 51 arranged at the bottom can drive the piston 511 to move in the circlip sleeve 512, and then push out the circlip in the circlip sleeve 512. The position of the fixing rod 622 is set in advance so that the fixing rod 622 can move to directly above the circlip sleeve 512. When the piston 511 pushes out the circlip, the fixing rod 622 can be inserted into the circlip, which helps to transfer the circlip.

[0036] The implementation principle of the embodiments of this application is as follows: Before officially using this device, the staff needs to align the position with holes of the circlip and place it into the circlip sleeve 512, adjust the circlip sleeve 512 and shrink its size so that the circlip in the circlip sleeve 512 is compressed. After starting the device, the feeding cylinder 51 will push the circlips upwards one by one out of the circlip sleeve 512 through the piston 511 according to the preset program. The fixed rod 622 moves to the top of the circlip sleeve 512 and aligns with the circlip hole as the swing shaft 61 rotates, and the fixed rod 622 is inserted into the circlip hole as the piston 511 pushes. The swing shaft rotates to move the fixed rod 622 to the roller drum opening. When the transmission shaft 2 rotates, it will drive the preloading assembly and the crimping assembly to perform intermittent movements. Since the initial state of the crimping shaft 42 is not crimping, that is, the crimping head 422 is at the highest position, the ball 412 will abut against the fastening member 26, making the engaging teeth 27 mesh with the socket teeth 28. When the transmission starts to rotate, the cam a 25 will first drive the connecting rod 31 to descend, and then the preloading head 313 will first contact the circlip. Since the size of the preloading head 313 is larger than that of the crimping head 422, the preloading head 313 cannot extend into the drum, so it can contact the circlip with a larger surface and press the circlip to the edge of the drum opening, but the circlip has completely entered the drum at this time. As the transmission shaft 2 rotates, it will drive the cam b 29 to rotate, and then drive the crimping shaft 42 to move downwards, abutting the crimping head 422 against the circlip and pressing it into the drum, thus completing the installation of the circlip.

[0037] The above are all the preferred embodiments of this application. Without restricting the protection scope of this application accordingly, therefore: All equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A roller retaining spring installation device, characterized in that: It includes a filling mechanism, a feeding mechanism and a material moving mechanism, wherein the filling mechanism includes a pre-pressing assembly for pre-pressing the retaining spring, a crimping assembly for pressing the retaining spring, and a driving assembly for driving the pre-pressing assembly and the crimping assembly; The packing mechanism includes a swing assembly for transferring the retaining spring and a solid material assembly for fixing the retaining spring; The filling mechanism also includes a housing (1) for mounting a driving assembly, a pre-pressing assembly and a crimping assembly, and the material moving mechanism is located below the filling mechanism.

2. The roller retaining spring installation device according to claim 1, characterized in that: The driving assembly comprises a transmission shaft (2), and a worm bushing (21) is sleeved on the transmission shaft (2); A card joint (22) is also fixedly arranged on the transmission shaft (2), the longitudinal section of the card joint (22) is circular and a tooth-forming sleeve tooth (28) is provided on the longitudinal periphery of the card joint (22), and an inner transmission rod (23) is fixedly arranged at the center of the card joint (22); A cam a (25) is movably sleeved on the inner transmission rod (23), a side surface of the cam a (25) is provided with a clamping tooth (27) meshing with a sleeve tooth (28), and a spring a (24) is sleeved on the inner transmission rod (23) between the sleeve tooth (28) and the clamping tooth (27); A buckling piece (26) is fixedly provided on one side of the cam a (25) away from the clamping joint (22), and the buckling piece (26) is in the shape of a truncated cone.

3. The roller retaining spring installation device according to claim 2, characterized in that: The pre-pressing assembly comprises a connecting rod (31), the connecting rod (31) comprises a rod body (311), a top joint (312) at the top of the rod body (311) and a pre-pressing head (313) at the bottom of the rod body (311), the top joint (312), the rod body (311) and the pre-pressing head (313) forming a Z shape, a spring b (33) and a retaining sleeve (32) are installed below the top joint (312), the top of the spring b (33) is clamped with the bottom of the top joint (312), and the rod body (311) is slidably arranged in the retaining sleeve (32).

4. The roller retaining spring installation device according to claim 2, characterized in that: The crimping assembly comprises a crimping shaft (42), a crimping head (422) is arranged at the bottom of the crimping shaft (42), the crimping head (422) extends toward the bottom of the housing (1), and a cam b (29) is fixedly arranged on the inner transmission rod (23), the cam b (29) is placed on the top of the crimping shaft (42) and is used to drive the crimping shaft (42) to move downward; A clamping shoulder (421) is provided on one side of the crimping shaft (42) close to the crimping head (422). A spring c (423) is sleeved on the crimping head (422), and the top of the spring c (423) is clamped with the clamping shoulder (421).

5. The roller retaining spring installation device according to claim 4, characterized in that: A reset rod (43) is also fixedly provided on the top of the crimping shaft (42), and a ball sleeve (411) is fixedly provided on one end of the reset rod (43) facing the buckle (26), and a rolling ball (412) is rotatably installed in the ball sleeve (411), and the rolling ball (412) can abut against the buckle (26).

6. The roller retaining spring installation device according to claim 4, characterized in that: A first connecting plate (431) is fixedly installed on the side of the crimping shaft (42); a slide groove (11) is provided on the shell (1) at a position corresponding to the first connecting plate (431) so that the first connecting plate (431) can slide up and down in the slide groove (11); a second connecting plate (432) is vertically installed on the end of the first connecting plate (431) away from the crimping shaft (42); a third connecting rod (433) is vertically installed on the end of the second connecting plate (432); a lead rod (434) is vertically installed on the end of the third connecting rod (433) away from the second connecting plate (432); and a guide inclined surface (435) is provided on the side of the lead rod (434).

7. The roller retaining spring installation device according to claim 1, characterized in that: The material moving mechanism comprises a swinging assembly and a material fixing assembly. The swinging assembly comprises a swinging shaft (61), and a torsion spring (611) is sleeved on the swinging shaft (61).

8. The roller retaining spring installation device according to claim 7, characterized in that: A guide roller (612) is rotatably mounted on the swing shaft (61).

9. The roller retaining spring installation device according to claim 7, characterized in that: The solid material assembly comprises a support rod (621) and a fixed rod (622), wherein the support rod (621) is mounted on the swing shaft (61), and the fixed rod (622) is mounted vertically downward at the end of the support rod (621).

10. The roller retaining spring installation device according to claim 1, characterized in that: The feeding mechanism comprises a pushing cylinder (51) and a retaining ring sleeve (512). The pushing cylinder (51) is arranged at the bottom of the retaining ring sleeve (512). The output shaft of the pushing cylinder (51) extends into the retaining ring sleeve (512) and is fixedly connected to a piston (511).