Snap spring assembling equipment of motor rotor

By designing an automated snap ring assembly device, which uses a cylinder to drive the snap ring assembly automatically, the problems of low efficiency and high defect rate of existing manual assembly are solved, realizing efficient and stable snap ring assembly and improving the qualification rate of motor rotor assembly.

CN223643190UActive Publication Date: 2025-12-09SHISHI TONGDA MOTOR CO LTD
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Patent Information

Application Number
CN202520006332.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-02
Publication Date
2025-12-09
Estimated Expiration
2035-01-02

AI Technical Summary

Technical Problem

The current manual assembly of retaining rings is inefficient and has a high failure rate. Improper operation can easily lead to the retaining rings not being properly engaged.

Method used

Design a snap ring assembly device for motor rotor, including frame, fixed base, snap ring pressing assembly and snap ring feeding guide rail. Utilize cylinder to drive automatic snap ring assembly, reducing manual operation. The snap ring is pushed into the snap ring groove by a guide block.

Benefits of technology

It significantly improves the assembly efficiency of snap rings, avoids incomplete assembly caused by improper operating force, and greatly improves the qualification rate of motor rotor assembly.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a snap spring assembling device of a motor rotor, which relates to the technical field of automation equipment and comprises a rack, the rack is provided with oppositely arranged fixing seats, a rotor fixing seat is arranged between the two fixing seats, the opposite surfaces of the two fixing seats are both provided with snap spring press-in assemblies, and each snap spring press-in assembly comprises a moving plate, a driving piece and a snap spring press-in seat. A through feeding groove is formed in the middle of each snap spring pressing seat, pressing blocks are arranged on the opposite faces of the two snap spring pressing seats in a protruding mode, discharging ports communicated with the feeding grooves are formed in the two pressing blocks, snap spring grooves are formed in the upper portions of the discharging ports in a concave mode, supporting seats are arranged on the sides, away from each other, of the two fixing seats, and inclined faces are arranged on the opposite faces of the two supporting seats. The two inclined faces are each provided with a clamp spring feeding guide rail, each clamp spring feeding guide rail comprises an inclined section and an arc-shaped section, and the top end of each inclined section is further provided with a guide block used for pushing a clamp spring into the corresponding clamp spring groove. According to the utility model, the assembling efficiency of the snap spring is obviously improved, and the qualified rate after the motor rotor is assembled is improved.
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Description

Technical Field

[0001] This utility model relates to the field of automation equipment technology, and in particular to a device for assembling snap rings for motor rotors. Background Technology

[0002] A snap ring, also called a retaining ring or retaining ring, is a type of fastener used to install in the shaft groove or hole groove of a machine or equipment. It serves to prevent the axial movement of parts on the shaft or in the hole. Snap rings are an indispensable component in motor rotors, playing a limiting role in the rotor bearings. Therefore, the installation of snap rings is particularly important. The existing method of installing snap rings involves manually fixing the snap ring to the snap ring mounting fixture, then aligning it with the pre-machined annular groove on the rotor shaft, and then pressing it firmly together. However, this assembly method is not only extremely inefficient but also has a high failure rate. If the worker applies improper force, the snap ring may not be properly engaged.

[0003] In view of this, the inventor conducted in-depth research on the above-mentioned problems, which led to the creation of this case. Utility Model Content

[0004] This utility model provides a snap ring assembly device for motor rotors, aiming to solve the problems of low efficiency and high defect rate of existing manual snap ring assembly.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A spring clip assembly device for an electric motor rotor includes a frame. With the length of the frame as the left-right direction, the top surface of the frame is vertically equipped with opposing fixed seats, one of which can be close to or away from the other. A rotor fixing seat for placing the rotor is provided between the two fixed seats. Each of the two fixed seats has a spring clip pressing assembly on its facing side. The spring clip pressing assembly includes a movable plate, a driving member for moving the movable plate vertically on the fixed seat, and a spring clip pressing seat connected to the bottom end of the movable plate. The spring clip pressing seat has a feed groove extending vertically through its center. Furthermore, each of the two aforementioned retaining spring press-in seats has a truncated cone-shaped pressing block protruding on its facing side, and each of the two pressing blocks has a discharge port communicating with the aforementioned feed groove. Above the discharge port, there is a retaining spring groove that matches the shape of the retaining spring. Each of the two aforementioned fixed seats has a support seat on its opposite side, and each of the two aforementioned support seats has an inclined surface on its facing side. Each of the two aforementioned inclined surfaces has a retaining spring feeding guide rail. The retaining spring feeding guide rail includes an inclined section that is inclined relative to the frame and an arc-shaped section that extends into the interior of the aforementioned retaining spring press-in seat. The top of the inclined section is also slidably provided with a guide block for pushing the retaining spring into the retaining spring groove.

[0007] Furthermore, the aforementioned driving component is a vertically arranged first cylinder; each of the two aforementioned fixed seats has a vertically arranged first slide rail on its facing side, and each of the two aforementioned movable plates has a first slider on its opposing side for sliding cooperation with the aforementioned first slide rail.

[0008] Furthermore, the top surface of the frame is provided with two second slide rails arranged horizontally in the left-right direction, and a second cylinder arranged horizontally in the left-right direction is provided between the two second slide rails. The output end of the second cylinder is fixedly connected to an adapter block, and the top surface of the adapter block is connected to a long strip-shaped adapter plate. The end of the adapter plate extends to the right and is connected to the fixed seat on the right side. A second slider for sliding cooperation with the second slide rail is provided below the fixed seat on the right side.

[0009] Furthermore, each of the two aforementioned support seats is provided with a positioning assembly for fixing the rotor on its opposite side. The positioning assembly includes a positioning seat, and each of the aforementioned positioning seats is screwed with a positioning rod arranged horizontally in the left-right direction. One end of the positioning rod passes through the support seat and extends toward the rotor fixing seat, while the other end extends out of the support seat and is provided with a handwheel for rotating the positioning rod.

[0010] Furthermore, the top surface of the aforementioned rotor mounting base is recessed with an arc-shaped mounting groove.

[0011] Furthermore, the lower end of the aforementioned fixed base is provided with a clearance groove that extends through the left and right directions, and the clearance groove is connected to the aforementioned feed groove.

[0012] Furthermore, the cross-section of the aforementioned snap ring feed guide is T-shaped, and the aforementioned guide block is recessed with a groove that matches the cross-sectional shape of the aforementioned snap ring feed guide.

[0013] Furthermore, the front side of the aforementioned frame is respectively provided with a first controller and a second controller for controlling the aforementioned first cylinder and the aforementioned second cylinder.

[0014] As can be seen from the above description of the structure of this utility model, this utility model has the following advantages:

[0015] This invention features two fixed seats arranged opposite each other on a frame, with a rotor fixing seat between the two fixed seats for placing the rotor. Each fixed seat has a snap ring pressing assembly on its facing side and a support seat on its opposing side. A snap ring feeding guide is locked to the facing side of each support seat. The snap ring feeding guide includes an inclined section that is tilted relative to the frame and arc-shaped sections extending into the snap ring pressing seat. A guide block for pushing the snap ring into the snap ring groove is slidably provided at the top of the inclined section. This design enables automatic snap ring assembly, reduces manual operation, significantly improves snap ring assembly efficiency, and avoids incomplete assembly due to improper operating force, thereby greatly improving the pass rate of the assembled motor rotor. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the structure of this utility model with a motor rotor placed on it.

[0018] Figure 3 This is a schematic diagram of the structure of this utility model after the frame is removed.

[0019] Figure 4 This is a schematic diagram of the structure of the single-sided fixing base of this utility model.

[0020] Figure 5 This is a schematic diagram of the snap ring press-in assembly of this utility model.

[0021] Figure 6 This is a schematic diagram of the structure of the single-sided fixing seat of this utility model after the side plate is removed.

[0022] Figure 7 This is a front view of the single-sided fixing base of this utility model.

[0023] Figure 8 This is a rear view of the single-sided fixing base of this utility model.

[0024] Figure 9 This is a bottom view of the single-sided fixing base of this utility model.

[0025] Figure 10 This is a schematic diagram of the rotor mounting base of this utility model.

[0026] Figure 11 This is a schematic diagram of the structure of the snap ring feed guide rail of this utility model.

[0027] Figure 12 This is a schematic diagram of the material guide block of this utility model.

[0028] Reference numerals: 10-Frame; 11-Second slide rail; 12-Second cylinder; 121-Adapter block; 122-Adapter plate; 13-First controller; 14-Second controller; 20-Fixed seat; 201-First slide rail; 202-Second slider; 203-Allowing groove; 21-Moving plate; 211-First slider; 22-First cylinder; 23-Snap ring press-in seat; 231-Feed groove; 232-Pressure block; 233-Discharge port; 234-Snap ring groove; 30-Rotor fixed seat; 31-Fixed groove; 40-Support seat; 41-Inclined surface; 42-Through groove; 50-Snap ring feed guide rail; 51-Inclined section; 52-Arc section; 53-Guide block; 531-Groove; 61-Positioning seat; 62-Positioning rod; 63-Handwheel. Detailed Implementation

[0029] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0030] Reference Figures 1 to 6 A spring clip assembly device for a motor rotor includes a frame 10. With the length of the frame 10 as the left-right direction, two opposing fixed seats 20 are vertically arranged on the top surface of the frame 10. The two fixed seats 20 are arranged in a straight line, and either fixed seat 20 can approach or move away from the other fixed seat 20. A rotor fixing seat 30 for placing the rotor is provided between the two fixed seats 20. Each of the two fixed seats 20 has a spring clip pressing assembly on its facing side. The spring clip pressing assembly includes a movable plate 21, a driving component for moving the movable plate 21 vertically on the fixed seat 20, and a spring clip pressing seat 23 connected to the bottom end of the movable plate 21. The center of the spring clip pressing seat 23 has a feed groove 231 that extends vertically through it. The two spring clip pressing seats 23 face each other. Each of the two pressure blocks 232 has a truncated cone-shaped pressing block 232. Both pressing blocks 232 have a discharge port 233 that communicates with the above-mentioned feed groove 231. The upper part of the discharge port 233 is recessed with a snap ring groove 234 that matches the shape of the snap ring. Each of the two fixed seats 20 has a support seat 40 on its opposite side. The two support seats 40 have an inclined surface 41 on their facing side. Both inclined surfaces 41 are locked with snap ring feed guide rails 50. The snap ring feed guide rails 50 include an inclined section 51 that is inclined relative to the frame 10 and an arc-shaped section 52 that extends into the snap ring pressing seat 23. The top of the inclined section 51 is also slidably provided with a guide block 53 for pushing the snap ring into the snap ring groove 234. With this configuration, manual operation is reduced and the efficiency of snap ring assembly is greatly improved.

[0031] Reference Figures 1 to 6The driving component is a vertically mounted first cylinder 22; each of the two fixed seats 20 has a vertically mounted first slide rail 201 on its facing side, and each of the two moving plates 21 has a first slider 211 on its opposing side for sliding cooperation with the first slide rail 201; the top surface of the frame 10 has two second slide rails 11 arranged horizontally in the left-right direction, and a second cylinder 12 arranged horizontally in the left-right direction is provided between the two second slide rails 11. The output end of the second cylinder 12 is fixedly connected to an adapter block 121, and the top surface of the adapter block 121 is connected to a long strip adapter plate 122. The end of the adapter plate 122 extends to the right and connects to the fixed seat 20 on the right side. A second slider 202 for sliding cooperation with the second slide rail 11 is provided below the fixed seat 20 on the right side. With this arrangement, when the first cylinder 22 drives the output end to rise or retract, it can drive the moving plate 21 to move up and down on the fixed seat 20, thereby pressing the snap ring in the snap ring groove 234 into the shaft groove of the motor rotor. When the second cylinder 12 drives the output end to rise or retract, it can drive the fixed seat 20 on the right side to move left and right on the top surface of the frame 10.

[0032] Reference Figures 1 to 7 Each of the two support seats 40 has a positioning component for fixing the rotor on one side facing away from each other. The positioning component includes a positioning seat 61, and each positioning seat 61 is screwed with a positioning rod 62 arranged horizontally in the left-right direction. One end of the positioning rod 62 passes through the through groove 42 of the support seat 40 and extends towards the rotor fixing seat 30. The other end extends out of the outside of the support seat 40 and is provided with a handwheel 63 for rotating the positioning rod 62. In use, by rotating the handwheel 63, the positioning rod 62 can be made to abut or move away from one end of the motor rotor, thereby achieving the purpose of further fixing the motor rotor. The top surface of the rotor fixing seat 30 is recessed with an arc-shaped fixing groove 31. The fixing groove 31 can improve the stability of the motor rotor when assembling the snap ring. The lower end of the fixing seat 20 is also provided with a clearance groove 203 that runs through in the left-right direction. The clearance groove 203 communicates with the feed groove 231. In this way, when the first cylinder 22 drives the moving plate 21 to move downward, it can avoid collision with the snap ring feed guide rail 50.

[0033] Reference Figures 1 to 12 The cross-section of the snap ring feed guide 50 is T-shaped, and the guide block 53 is recessed with a groove 531 that matches the cross-sectional shape of the snap ring feed guide 50. The groove 531 and the snap ring feed guide 50 are in clearance fit. Under the action of gravity, the guide block 53 can continuously apply force to the snap ring on the snap ring feed guide 50, thereby pushing the snap ring into the snap ring groove 234. The front side of the frame 10 is provided with a first controller 13 and a second controller 14 for controlling the first cylinder 22 and the second cylinder 12. During use, the operator can control the equipment through the first controller 13 and the second controller 14.

[0034] In use, the worker first places the motor rotor to be fitted with the snap ring onto the rotor mounting base 30. Then, the worker presses the second controller 14, and the second cylinder 12 moves the right mounting base 20 to the left mounting base 20. The movement stops when the snap ring groove 234 of the right mounting base 20 is above the shaft groove at the right end of the motor rotor. Next, the worker uses the handwheel 63 to rotate the positioning rods 62 on both sides to fix the motor rotor on the rotor mounting base 30, so that the free end of the positioning rod 62 abuts against the shaft end of the motor rotor. Then, the worker presses the first controller 13, and the two first cylinders 22 move synchronously or asynchronously, driving the two moving plates 21 to move downward, so that the snap ring in the snap ring groove 234 is engaged into the shaft groove of the motor rotor. After the snap ring is assembled, the worker uses the second controller 14 to move the right mounting base 20 away from the left mounting base 20. Finally, the assembled motor rotor is removed, thus completing the snap ring assembly.

[0035] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. A device for assembling snap rings for motor rotors, characterized in that: The system includes a frame, with its length direction defined as the left-right direction. The top surface of the frame is vertically equipped with opposing fixed seats, each of which can be close to or away from the other. A rotor fixing seat is provided between the two fixed seats for placing the rotor. Each of the two fixed seats has a snap ring pressing assembly on its facing side. The snap ring pressing assembly includes a movable plate, a driving component for moving the movable plate vertically on the fixed seat, and a snap ring pressing seat connected to the bottom end of the movable plate. The snap ring pressing seat has a feed groove extending vertically through its center. Both of the two mounting seats have a truncated cone-shaped pressing block on their opposite sides. Both pressing blocks have a discharge port that communicates with the feed groove. Above the discharge port, there is a retaining spring groove that matches the shape of the retaining spring. Both fixed seats have a support seat on their opposite sides. Both support seats have an inclined surface on their opposite sides. Both inclined surfaces have a retaining spring feeding guide rail. The retaining spring feeding guide rail includes an inclined section that is inclined relative to the frame and an arc-shaped section that extends into the retaining spring pressing seat. The top of the inclined section is also slidably provided with a guide block for pushing the retaining spring into the retaining spring groove.

2. The motor rotor snap ring assembly equipment according to claim 1, characterized in that: The driving component is a vertically arranged first cylinder; each of the two fixed seats has a vertically arranged first slide rail on its facing side, and each of the two moving plates has a first slider on its opposing side for sliding cooperation with the first slide rail.

3. The motor rotor snap ring assembly equipment according to claim 2, characterized in that: The top surface of the frame is provided with two second slide rails arranged horizontally in the left-right direction. A second cylinder is arranged horizontally in the left-right direction between the two second slide rails. An adapter block is fixedly connected to the output end of the second cylinder. A long strip adapter plate is connected to the top surface of the adapter block. The end of the adapter plate extends to the right and is connected to the fixed seat on the right side. A second slider for sliding cooperation with the second slide rail is provided below the fixed seat on the right side.

4. The circlip assembly equipment for a motor rotor according to any one of claims 1 to 3, characterized in that: Each of the two support seats has a positioning assembly for fixing the rotor on its opposite side. The positioning assembly includes a positioning seat, and each positioning seat is screwed with a positioning rod arranged horizontally in the left-right direction. One end of the positioning rod passes through the support seat and extends toward the rotor fixing seat, while the other end extends out of the support seat and is provided with a handwheel for rotating the positioning rod.

5. The motor rotor snap ring assembly equipment according to claim 4, characterized in that: The top surface of the rotor mounting base is recessed with an arc-shaped mounting groove.

6. The motor rotor snap ring assembly equipment according to claim 4, characterized in that: The lower end of the fixed base is also provided with a clearance groove that runs through the left and right directions, and the clearance groove is connected to the feed groove.

7. The motor rotor snap ring assembly equipment according to claim 4, characterized in that: The cross-section of the snap ring feed guide is T-shaped, and the guide block is recessed with a groove that matches the cross-sectional shape of the snap ring feed guide.

8. The motor rotor snap ring assembly equipment according to claim 3, characterized in that: The front side of the frame is provided with a first controller and a second controller for controlling the first cylinder and the second cylinder, respectively.