Automatic rotor clamp spring assembling device

The automated rotor snap ring assembly device utilizes a combination of a material rack, a limiting block, and grippers to achieve automated assembly of motor rotor snap rings. This solves the problems of high labor intensity and low precision in manual assembly, and improves assembly efficiency and accuracy.

CN224143945UActive Publication Date: 2026-04-21WUXI JINYANG AUTOMOBILE ELECTRIC APPLIANCE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI JINYANG AUTOMOBILE ELECTRIC APPLIANCE CO LTD
Filing Date
2025-04-30
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

In the existing technology, the assembly of motor rotor snap rings relies on manual operation, which is labor-intensive, inefficient, and the accuracy is affected by human factors, which can easily cause wear on the motor rotor.

Method used

An automated rotor snap ring assembly device was designed. It utilizes a combination structure of a material rack, a limiting block, a slider, and a gripper to achieve automated snap ring assembly through cylinder drive, thereby reducing manpower requirements and improving assembly efficiency.

Benefits of technology

It realizes the automated assembly of motor rotor snap rings, reduces manpower requirements, improves assembly efficiency, simplifies structural design, reduces the requirements for the degree of freedom of the grippers, and improves assembly accuracy.

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Abstract

The utility model relates to an automatic rotor clamp spring assembling device, which comprises a material placing frame, an upper surface of which is provided with at least two first limiting grooves; the material placing frame comprises two supporting plates which are horizontally arranged in parallel and a top plate arranged between the two supporting plates; a second limiting groove parallel to the first limiting groove is formed in the upper surface of the limiting block; the number of the limiting blocks is two, and the sliding block is arranged between the two limiting blocks. Clamping grooves are formed in the ends, close to the second limiting grooves, of the sliding blocks; the clamping spring is arranged in the clamping groove; the supporting seat is connected with the clamping jaw through a transverse sliding plate and a vertical sliding plate; the clamping jaw and the sliding block are arranged in the same vertical plane; an arc groove is formed in the upper surface of the top plate in the length direction of the first limiting groove; the top plate is connected with a sliding table cylinder which is connected with a jacking cylinder; the sliding table air cylinder is horizontally arranged in the length direction of the gap between the two supporting plates. The jacking air cylinder is vertically arranged. According to the utility model, through the arrangement of the material placing frame, the limiting block, the sliding block and the clamping jaw, automatic clamping of the motor rotor and the snap spring is realized.
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Description

Technical Field

[0001] This utility model relates to the field of motor rotor manufacturing technology, and in particular to an automated rotor snap ring assembly device. Background Technology

[0002] Motor rotors typically require retaining rings fitted around the bearings on the rotor shaft for positioning. In motor assembly, these retaining rings are usually installed manually onto the shafts at both ends of the rotor. This process demands highly skilled operators, is labor-intensive, and has low efficiency. Furthermore, the accuracy of manual installation is affected by the skill and experience of the assembler, easily leading to wear on the motor rotor. It should be noted that the information disclosed in the background section above is only for enhancing the understanding of the background of this disclosure and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of this utility model is to provide an automated rotor snap ring assembly device to improve the automation level of rotor snap ring assembly.

[0004] The technical solution of this utility model is as follows:

[0005] Automated rotor snap ring assembly device, the automated rotor snap ring assembly device comprising:

[0006] The material placement rack has at least two first limiting grooves on its upper surface; the material placement rack includes two horizontally arranged support plates and a top plate disposed between the two support plates;

[0007] A limiting block has a second limiting groove parallel to the first limiting groove on its upper surface; two limiting blocks are provided, and a slider is provided between the two limiting blocks; a slot is provided at one end of the slider near the second limiting groove; a retaining spring is provided in the slot;

[0008] The support base is connected to the gripper via a horizontal sliding plate and a vertical sliding plate; the gripper and the slider are arranged in the same vertical plane;

[0009] Wherein, along the length direction of the first limiting groove, an arc groove is formed on the upper surface of the top plate; the top plate is connected to a sliding cylinder, and the sliding cylinder is connected to a lifting cylinder; along the length direction of the gap between the two support plates, the sliding cylinder is horizontally arranged; the lifting cylinder is vertically arranged.

[0010] Two material placement racks are provided, and the two material placement racks are symmetrically arranged around the second limiting groove.

[0011] The distances from the first limiting groove to the second limiting groove on the two material racks are equal; two grippers are provided at the same height; the distance between the two grippers is equal to the distance between the first limiting groove and the second limiting groove.

[0012] The horizontal sliding plate is connected to the support base via a horizontally arranged sliding cylinder; the vertical sliding plate is connected to the horizontal sliding plate via a vertically arranged sliding cylinder; the gripper is disposed on the vertical sliding plate.

[0013] It is also provided with a slide rod; one end of the slide rod is aligned with the slot, and the other end of the slide rod is bent upwards; a retaining spring is sleeved on the slide rod.

[0014] A counterweight is also fitted onto the slide bar.

[0015] The limiting block has a feeding hole, and the slide rod passes through the limiting block along the feeding hole and aligns with the slot.

[0016] A positioning rod is also provided along the length of the second limiting groove; the positioning rod is set on the mounting surface through a sliding block structure.

[0017] The slider is also connected to a telescopic cylinder, which extends and retracts to push the slot closer to or away from the second limiting slot.

[0018] The slider is located near the opposite sides of the two limiting blocks, and a material placement groove is opened on each side; the material placement groove and the card slot overlap.

[0019] The beneficial technical effects of this utility model are as follows:

[0020] (1) In the automated rotor snap ring assembly device of this utility model, the motor rotor shaft is inserted into the second limiting groove. After the motor rotor is placed in the assembly position on the limiting block, the slider is pushed to move, which can quickly snap the snap ring in the slot onto the motor rotor shaft. In addition, a top plate is also provided in the material rack. The motor rotor shaft is inserted into the first limiting groove. After the motor rotor is placed on the support plate, the top plate is driven to move by the lifting cylinder and the sliding cylinder, which can lift and move the position of the motor rotor on the support plate laterally, so as to move the motor rotor to the preset position on the material rack for clamping by the gripper. In addition, the gripper is set on the support base by the horizontal sliding plate and the vertical sliding plate. After the position of the limiting block and the material rack is set along the sliding direction of the horizontal sliding plate, the motor rotor can be transferred by moving the gripper in the vertical plane, which reduces the requirement for the gripper's degree of freedom and simplifies the structure of the automated rotor snap ring assembly device. Moreover, through the setting of the material rack, limiting block, slider and gripper, the automated clamping of the motor rotor and snap ring is realized, reducing the need for manpower and improving the assembly efficiency.

[0021] (2) Furthermore, two grippers are provided for both the material rack and the gripper, and the distance between the two grippers is the same as the distance between the first limiting groove and the second limiting groove. This ensures that when one gripper moves to the first limiting groove, the other gripper moves to the position of the second limiting groove, and the two grippers can simultaneously clamp or release the motor rotor, further improving the working efficiency of the automated rotor snap ring assembly device.

[0022] (3) Furthermore, both the horizontal and vertical sliding plates are moved horizontally or vertically by the sliding cylinder. The sliding cylinder has a compact structure, integrating the linear guide rail, cylinder body and limit buffer device. Compared with the traditional telescopic device, it occupies less space and is convenient for optimizing the structure of the automated rotor snap ring assembly device. Attached Figure Description

[0023] Figure 1 A front view structural schematic diagram of an automated rotor snap ring assembly device according to an embodiment of the present disclosure is shown.

[0024] Figure 2 A top view of an automated rotor snap ring assembly apparatus according to an embodiment of the present disclosure is shown.

[0025] Figure 3 The diagram shows a left-side view of the material rack in an automated rotor snap ring assembly apparatus according to an embodiment of the present disclosure.

[0026] Figure 4 A schematic diagram of the assembly structure of the limiting block and the sliding plate in an automated rotor snap ring assembly device according to an embodiment of the present disclosure is shown.

[0027] Figure 5 A partially enlarged view of point A is shown of an automated rotor snap ring assembly apparatus according to an embodiment of the present disclosure.

[0028] Marked in the attached diagram:

[0029] 1. Base plate; 2. Material rack; 21. First limiting groove; 22. Support plate; 23. Top plate; 231. Arc groove; 24. Slide cylinder; 25. Lifting cylinder; 3. Limiting block; 31. Second limiting groove; 32. Feeding hole; 33. Slide rod; 331. Counterweight block; 332. First extension; 333. Connecting part; 334. Second extension; 34. Positioning rod; 4. Slider; 41. Slot; 42. Material rack; 43. Telescopic cylinder; 5. Support base; 51. Gripper; 52. Horizontal slide plate; 53. Vertical slide plate; 6. Motor rotor. Detailed Implementation

[0030] To make the objectives, features, and advantages of this utility model more apparent and understandable, please refer to the accompanying drawings. It should be noted that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the content disclosed herein. They are not intended to limit the implementation conditions of this utility model and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by this utility model, should still fall within the scope of the technical content disclosed in this utility model.

[0031] In the description of this utility model, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element 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 utility model.

[0032] Figure 1 A front view structural schematic diagram of an automated rotor snap ring assembly device according to an embodiment of the present disclosure is shown. Figure 2 A top view of an automated rotor snap ring assembly apparatus according to an embodiment of the present disclosure is shown. Figure 3 The diagram shows a left-side view of the material rack in an automated rotor snap ring assembly apparatus according to an embodiment of this disclosure. Please refer to... Figure 1 , Figure 2 and Figure 3The automated rotor snap ring assembly device includes a material rack 2, with at least two first limiting grooves 21 on its upper surface. The material rack 2 includes two horizontally parallel support plates 22 and a top plate 23 positioned between the two support plates 22. Along the length of the first limiting grooves 21, an arc groove 231 is formed on the upper surface of the top plate 23. The top plate 23 is connected to a sliding cylinder 24, which is connected to a lifting cylinder 25. The sliding cylinder 24 is horizontally positioned along the length of the gap between the two support plates 22. The lifting cylinder 25 is vertically positioned. After the motor rotor 6 is placed on the support plate 22, the top plate 23 is moved by the lifting cylinder 25 and the sliding cylinder 24, which lifts and laterally moves the position of the motor rotor 6 on the support plate 22, moving the motor rotor 6 to a preset position on the material rack 2 for clamping by the gripper 51. A limiting block 3 has a second limiting groove 31 parallel to the first limiting grooves 21 on its upper surface. Two limiting blocks 3 are provided, and a slider 4 is provided between the two limiting blocks 3. A slot 41 is opened at the end of the slider 4 near the second limiting groove 31. The retaining ring is set in the slot 41. The shaft of the motor rotor 6 is inserted into the second limiting groove 31. After the motor rotor 6 is set in the assembly position on the limiting block 3, the slider 4 is pushed to move, which can quickly lock the retaining ring in the slot 41 onto the shaft of the motor rotor 6. The support base 5 is connected to the gripper 51 through the horizontal sliding plate 52 and the vertical sliding plate 53. The gripper 51 and the slider 4 are set in the same vertical plane. After setting the positions of the limiting block 3 and the material rack 2 along the sliding direction of the horizontal sliding plate 52, the transfer of the motor rotor 6 can be completed by moving the gripper 51 in the vertical plane, reducing the requirement for the degree of freedom of the gripper 51 and simplifying the structure of the automated rotor retaining ring assembly device. Moreover, through the setting of the material rack 2, the limiting block 3, the slider 4 and the gripper 51, the automated clamping of the motor rotor 6 and the retaining ring is realized, reducing the need for manpower and improving assembly efficiency.

[0033] The base plate 1 is also provided, and the material rack 2, the limiting block 3, the telescopic cylinder 43 and the support base 5 are all set on the base plate 1.

[0034] Please refer to Figure 1 and Figure 2 Two material racks 2 are provided, symmetrically arranged around the second limiting groove 31. The distances from the first limiting groove 21 to the second limiting groove 31 on both material racks 2 are equal. Two grippers 51 are provided at the same height. The distance between the two grippers 51 is equal to the distance between the first limiting groove 21 and the second limiting groove 31. This ensures that when one gripper 51 moves to the first limiting groove 21, the other gripper 51 moves to the position of the second limiting groove 31. The two grippers 51 can synchronously clamp or release the motor rotor 6, further improving the working efficiency of the automated rotor snap ring assembly device.

[0035] Preferably, the transverse slide plate 52 is connected to the support base 5 via a transversely arranged slide cylinder 24. The vertical slide plate 53 is connected to the transverse slide plate 52 via a vertically arranged slide cylinder 24. The gripper 51 is mounted on the vertical slide plate 53. The sliding cylinder has a compact structure, integrating the linear guide rail, cylinder body, and limiting buffer device. Compared to traditional telescopic devices, it occupies less space and facilitates optimization of the structure of the automated rotor snap ring assembly device.

[0036] Figure 4 A schematic diagram of the assembly structure of the limiting block and the sliding plate in an automated rotor snap ring assembly device according to an embodiment of this disclosure is shown. Please refer to... Figure 1 , Figure 2 and Figure 4 The system also includes a slide rod 33. One end of the slide rod 33 is aligned with the slot 41, and the other end of the slide rod 33 is bent upwards. A retaining spring is fitted onto the slide rod 33. Specifically, the cross-section of the slide rod 33 includes a strip-shaped connecting portion 333. One end of the length of the connecting portion 333 extends to both sides as a first extension portion 332, and the other end of the length of the connecting portion 333 extends to both sides as a second extension portion 334. The notch position of the retaining spring is fitted onto the connecting portion 333. The first extension portion 332 and the second extension portion 334 restrict the retaining spring from sliding along the connecting portion 333, thereby unifying the orientation of the retaining spring fitted onto the slide rod 33. The unified orientation of the retaining spring facilitates the slider 4 to fit the retaining spring onto the shaft of the motor rotor 6 along the notch position of the retaining spring.

[0037] Preferably, a counterweight 331 is also fitted onto the slide rod 33. Under the action of gravity, the counterweight 331 presses down on the retaining spring fitted onto the slide rod 33, driving the retaining spring to automatically enter the retaining groove 41.

[0038] In some embodiments, a feeding hole 32 is provided on the limiting block 3, and the slide rod 33 passes through the limiting block 3 along the feeding hole 32 and aligns with the slot 41. During this process, the slider 4 remains close to the limiting block 3, and the placement slot 42 is also set to fit against the limiting block 3. After the retaining spring slides into the placement slot 42, its position is restricted by the limiting block 3 or other retaining springs to prevent the retaining spring in the placement slot 42 from falling out.

[0039] Figure 5 A partially enlarged view of point A is shown of an automated rotor snap ring assembly device according to an embodiment of this disclosure. Please refer to... Figure 1 , Figure 2 , Figure 4 and Figure 5A positioning rod 34 is also provided along the length of the second limiting groove 31. The positioning rod 34 is set on the mounting surface through the sliding block 4 structure. By adjusting the relative position of the positioning rod 34 and the second limiting groove 31 along the sliding block 4 structure, the position of the motor rotor 6 extending into the second limiting groove 31 is restricted by the positioning rod 34. Through the positioning rod 34, the position between the motor rotor 6 and the limiting block 3 can be quickly positioned, so that the retaining groove 41 is aligned with the installation position of the retaining spring on the motor rotor 6.

[0040] Preferably, the slider 4 is also connected to a telescopic cylinder 43. The telescopic cylinder 43 extends and retracts, pushing the slot 41 closer to or further away from the second limiting slot 31. After the motor rotor 6 is set on the limiting block 3, the telescopic cylinder 43 pushes the slider 4 until the slot 41 is fitted onto the shaft of the motor rotor 6. At this time, the retaining spring in the slot 41 is also fitted onto the slot 41 of the motor rotor 6. The telescopic cylinder 43 then retracts, and the shaft of the motor rotor 6 exits from the slot 41. During this process, the retaining spring remains fitted onto the shaft of the motor rotor 6 under the action of elastic force, thus automatically installing the retaining spring onto the motor rotor 6.

[0041] More preferably, the slider 4 has material slots 42 on opposite sides of the two limiting blocks 3. The material slots 42 and the retaining slots 41 coincide. Specifically, the diameter of the arc of the retaining slot 41 is set with reference to the diameter of the shaft of the motor rotor 6, and the diameter of the material slot 42 is set with reference to the diameter of the retaining spring. That is, the diameter of the arc of the retaining slot 41 is smaller than the diameter of the retaining spring, which restricts the retaining spring within the material slot 42 and prevents the retaining spring from sliding out of the material slot 42 along the retaining slot 41.

[0042] The specific workflow of this utility model is as follows:

[0043] The operator or the feeding mechanism places the motor rotor 6 on the material placement trough 42, and the shaft of the motor rotor 6 is engaged in the first limiting groove 21 on the side away from the limiting block 3. The lifting cylinder 25 and the sliding cylinder 24 are activated, driving the top plate 23 to extend upward, and the rotor body of the motor rotor 6 is engaged in the arc groove 231. Then, the top plate 23 is driven to move laterally, and the top plate 23 lifts the motor rotor 6 laterally. Then, the lifting cylinder 25 drives the top plate 23 to lower and place the motor rotor 6 on the support plate 22 again, and the shaft of the motor rotor 6 is engaged in another first limiting groove 21. At this time, the motor rotor 6 moves to the clamping position of the gripper 51. The sliding cylinder 24 drives the horizontal sliding plate 52 and the vertical sliding plate 53 to move, thereby driving the gripper 51 to move in the vertical plane, moving the motor rotor 6 on the material placement rack 2 to the limiting block 3. Telescopic cylinder 43 pushes slider 4 until slot 41 is fitted onto the shaft of motor rotor 6. At this time, snap ring in slot 41 is also fitted onto slot 41 of motor rotor 6. Telescopic cylinder 43 then retracts, and the shaft of motor rotor 6 exits from slot 41. During this process, snap ring remains fitted onto the shaft of motor rotor 6 under the action of elastic force, thus automatically installing snap ring onto motor rotor 6. Finally, slide cylinder 24 drives horizontal slide plate 52 and vertical slide plate 53 to move, thereby driving gripper 51 to move in the vertical plane, removing motor rotor 6 from limit block 3, completing the assembly of motor rotor 6 and snap ring.

[0044] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An automated rotor circlip assembly device, characterized by, The automatic rotor clamp spring assembly device comprises a material placing rack, the upper surface of which is provided with at least two first limiting grooves; the material placing rack comprises two horizontally arranged support plates and a top plate arranged between the two support plates; a limiting block, the upper surface of which is provided with a second limiting groove parallel to the first limiting groove; the limiting block is provided with two limiting blocks, and a sliding block is arranged between the two limiting blocks; a clamping groove is arranged at one end of the sliding block close to the second limiting groove; a clamp spring is arranged in the clamping groove; a support seat connected with a clamping jaw through a horizontal sliding plate and a vertical sliding plate; the clamping jaw and the sliding block are arranged in the same vertical plane; wherein, along the length direction of the first limiting groove, the upper surface of the top plate is provided with a circular arc groove; the top plate is connected with a sliding table air cylinder, and the sliding table air cylinder is connected with a jacking air cylinder; along the length direction of the gap between the two support plates, the sliding table air cylinder is horizontally arranged; the jacking air cylinder is vertically arranged.

2. The automated rotor circlip assembly apparatus of claim 1, wherein: The material placing rack is provided with two, and the two material placing racks are symmetrically arranged around the second limiting groove.

3. The automated rotor circlip assembly apparatus of claim 2, wherein: The distance from the first limiting groove to the second limiting groove on the two material placing racks is equal; at the same height, the clamping jaw is provided with two; the distance between the two clamping jaws is equal to the distance between the first limiting groove and the second limiting groove.

4. The automated rotor circlip assembly apparatus of claim 1, wherein: The horizontal sliding plate is connected with the support seat through a horizontally arranged sliding table air cylinder; the vertical sliding plate is connected with the horizontal sliding plate through a vertically arranged sliding table air cylinder; the clamping jaw is arranged on the vertical sliding plate.

5. The automated rotor circlip assembly apparatus of claim 1, wherein: A sliding rod is further arranged; one end of the sliding rod is aligned with the clamping groove, and the other end of the sliding rod is upwardly and curvedly arranged; a clamp spring is sleeved on the sliding rod.

6. The automated rotor circlip assembly apparatus of claim 5, wherein: A counterweight is further sleeved on the sliding rod.

7. The automated rotor circlip assembly apparatus of claim 6, wherein: A feeding hole is arranged on the limiting block, and the sliding rod passes through the limiting block along the feeding hole and is aligned with the clamping groove.

8. The automated rotor clasp assembly apparatus of claim 1, wherein: A positioning rod is further arranged along the length direction of the second limiting groove; the positioning rod is arranged on the mounting surface through a sliding plate sliding block structure.

9. The automated rotor clasp assembly apparatus of claim 1, wherein: The sliding block is further connected with a telescopic air cylinder; the telescopic air cylinder is telescopic, and pushes the clamping groove close to or away from the second limiting groove.

10. The automated rotor clasp assembly apparatus of claim 1, wherein: The sliding block is close to the opposite sides of the two limiting blocks, and a material placing groove is arranged on each side; the material placing groove is coincided with the clamping groove.