A grinding device for the inner circle of an electric motor stator
The motor stator is concentrically fixed by an electric push rod and guide rod structure, which solves the concentricity problem caused by manual fixing in the prior art and improves the grinding effect.
Patent Information
- Application Number
- CN202521160745.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-09
- Publication Date
- 2026-06-30
- Estimated Expiration
- 2035-06-09
AI Technical Summary
When the existing motor stator grinding device is fixed, it is difficult to make the grinding disc concentric with the inner wall of the stator by manually rotating the threaded rod, which affects the grinding effect.
It adopts an electric push rod and guide rod structure. The stator and the grinding disc are fixed concentrically by moving the clamping plate through the electric push rod, and grinding is performed by rotating the grinding disc electrically.
This technology enables efficient grinding of the inner wall of the motor stator, ensuring that the grinding disc is concentric with the stator and improving grinding quality and efficiency.
Smart Images
Figure CN224425082U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motor stator processing technology, and more specifically, to a motor stator internal grinding device. Background Technology
[0002] The motor stator is a crucial component of motors such as generators and starters. After production, the inner wall of the motor stator needs to be ground to facilitate subsequent assembly. Grinding equipment is required for this process; however, existing technologies have the following drawbacks:
[0003] When grinding a specific model of motor stator, the grinding disc in the grinding mechanism is adapted to the inner wall of the motor stator. Some devices fix the motor stator by rotating two threaded rods to move two clamping plates closer together. However, manually rotating the threaded rods makes it difficult to make the fixed stator concentric with the grinding disc, which will affect the subsequent grinding of the inner wall of the stator and is not conducive to practical use.
[0004] Therefore, there is an urgent need for a grinding device for the inner cylinder of an electric motor stator to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to address the problem that, in the current grinding process for specific motor stators, the grinding disc in the grinding mechanism is not properly matched with the inner wall of the motor stator. Some devices fix the motor stator by rotating two threaded rods to move two clamping plates closer together. However, manually rotating the threaded rods makes it difficult to ensure that the fixed stator is concentric with the grinding disc, which affects the subsequent grinding of the stator's inner wall and is not conducive to practical use.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A grinding device for the inner cylinder of an electric motor stator is provided to improve the above-mentioned problems.
[0008] The application is as follows:
[0009] A grinding device for the inner diameter of a motor stator includes a worktable. A first electric push rod is fixedly connected to the center of the upper surface of the worktable. A U-shaped plate is fixedly connected to the push rod end of the first electric push rod. A placement platform is fixedly connected to the top of the U-shaped plate. A mounting frame is fixedly connected to the top of the placement platform. Two symmetrically arranged first guide rods are fixedly connected to the inner surface of the mounting frame. Two symmetrically arranged mounting plates are slidably sleeved on the two first guide rods. A clamping plate is fixedly installed on one side surface of the mounting plate. An arc-shaped opening is opened on the side surface of the clamping plate away from the mounting plate. A second electric push rod is fixedly installed in the middle of the inner surface of one side of the mounting frame. Two symmetrically distributed first connecting plates are rotatably connected to the inner surface of the mounting frame. A second connecting plate is rotatably connected to both ends of the first connecting plate. The end of the second connecting plate away from the first connecting plate is rotatably connected to the mounting plate. A circular opening is opened at the center of the upper surface of the placement platform.
[0010] As a preferred technical solution of this application, a connecting frame is fixedly installed on the top of the workbench, a drive motor is fixedly installed at the center of the top of the connecting frame, a connecting shaft is fixedly connected to the output end of the drive motor, and a grinding disc is fixedly installed at the end of the connecting shaft away from the drive motor.
[0011] As a preferred technical solution of this application, four second guide rods arranged in a square are fixedly connected to the upper surface of the worktable, and the second guide rods pass through the placement table.
[0012] As a preferred technical solution of this application, two symmetrically arranged limiting plates are fixedly connected to the lower surface of the workbench, and the upper surface of the limiting plates is in contact with the bottom of the placement table.
[0013] As a preferred technical solution of this application, the grinding disc is located directly above the circular opening, and the diameter of the circular opening is larger than the diameter of the grinding disc.
[0014] As a preferred technical solution of this application, the two clamping plates are symmetrically distributed about the central axis of the first guide rod.
[0015] As a preferred technical solution of this application, the push rod end of the second electric push rod is fixedly connected to one of the mounting plates.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] 1. By using the mounting frame, first guide rod, mounting plate, clamping plate, arc-shaped opening, second electric push rod, first connecting plate and second connecting plate to cooperate, after clamping and fixing the motor stator on the top of the placement platform, by ensuring that the motor stator, grinding disc and circular opening are concentric, it is convenient to perform subsequent grinding on the inside of the stator.
[0018] 2. The first electric push rod drives the U-shaped plate and the placement platform to move up, and the motor stator on the top of the placement platform moves up accordingly. Through the cooperation of the drive motor, connecting shaft and grinding disc, the inner wall of the motor stator can be ground. Attached Figure Description
[0019] Figure 1 A schematic diagram of the overall structure of an internal grinding device for an electric motor stator provided in this application. Figure 1 .
[0020] Figure 2 A schematic diagram of the overall structure of an internal grinding device for an electric motor stator provided in this application. Figure 2 .
[0021] Figure 3 This is a schematic diagram of the connection structure between the first connecting plate and the second connecting plate in a motor stator internal grinding device provided in this application.
[0022] Figure 4 This is a schematic diagram of the connection structure between the U-shaped plate and the placement table in a motor stator internal grinding device provided in this application.
[0023] The image shows:
[0024] 1. Workbench; 2. First electric push rod; 3. U-shaped plate; 4. Placement platform; 5. Mounting frame; 6. First guide rod; 7. Mounting plate; 8. Clamping plate; 9. Arc-shaped opening; 10. Second electric push rod; 11. First connecting plate; 12. Second connecting plate; 13. Circular opening; 14. Connecting frame; 15. Drive motor; 16. Connecting shaft; 17. Grinding disc; 18. Second guide rod; 19. Limiting plate. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.
[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms 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, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. Example
[0027] like Figure 1-4 As shown, this embodiment of the motor stator internal grinding device includes a worktable 1. A first electric push rod 2 is fixedly connected to the center of the upper surface of the worktable 1. A U-shaped plate 3 is fixedly connected to the push rod end of the first electric push rod 2. A placement platform 4 is fixedly connected to the top of the U-shaped plate 3. A mounting frame 5 is fixedly connected to the top of the placement platform 4. Two symmetrically arranged first guide rods 6 are fixedly connected to the inner surface of the mounting frame 5. Two symmetrically arranged mounting plates 7 are slidably sleeved on the two first guide rods 6. A clamping plate 8 is fixedly installed on one side surface of the mounting plate 7. An arc-shaped opening 9 is opened on the side surface of the clamping plate 8 away from the mounting plate 7. The two clamping plates 8 are symmetrically distributed about the central axis of the first guide rods 6. The motor stator to be processed is placed on the top of the placement platform 4, so that the motor stator is located between the two arc-shaped openings 9. A second electric push rod 10 is fixedly installed in the middle of the inner surface of one side of the mounting frame 5. The push rod end of the second electric push rod 10 is fixedly connected to one of the mounting plates 7. When the second electric push rod 10 is activated, it drives one of the mounting plates 7 to move closer to the motor stator. The direction of movement causes the mounting plate 7 to slide on the two first guide rods 6. Two symmetrically distributed first connecting plates 11 are rotatably connected to the inner surface of the mounting frame 5. The first connecting plates 11 are rotatably connected to the two ends of each second connecting plate 12. The end of the second connecting plate 12 away from the first connecting plate 11 is rotatably connected to the mounting plate 7. When one of the mounting plates 7 moves, it drives the two second connecting plates 12 to rotate. The two first connecting plates 11 rotate through the two second connecting plates 12. A circular opening 13 is provided at the center of the upper surface of the placement platform 4. The two first connecting plates 11 drive the other two second connecting plates 12 to rotate. The other two second connecting plates 12 drive the other mounting plate 7 to move, so that the two mounting plates 7 move synchronously in opposite directions and approach each other. The two clamping plates 8 move with the two mounting plates 7 respectively, so that the two clamping plates 8 approach each other. When the arc-shaped openings 9 on the two clamping plates 8 are in contact with the outer surface of the motor stator, the second electric push rod 10 is stopped. The motor stator can be fixed through the two clamping plates 8.
[0028] like Figure 1 and Figure 2As shown, a connecting frame 14 is fixedly installed on the top of the workbench 1. A drive motor 15 is fixedly installed at the center of the top of the connecting frame 14. A connecting shaft 16 is fixedly connected to the output end of the drive motor 15. A grinding disc 17 is fixedly installed at the end of the connecting shaft 16 away from the drive motor 15. The grinding disc 17 is located directly above the circular opening 13, and the diameter of the circular opening 13 is larger than the diameter of the grinding disc 17. The drive motor 15 drives the connecting shaft 16 and the grinding disc 17 to rotate. The first electric push rod 2 drives the U-shaped plate 3 and the placement table 4 to move upward. The motor stator moves upward accordingly. When the inner wall of the motor stator comes into contact with the high-speed rotating grinding disc 17, the inner wall of the motor stator can be ground. When the circular opening 13 on the placement table 4 is located outside the grinding disc 17, the grinding disc 17 is located below the electronic stator, completing the grinding process on the inner wall of the electronic stator.
[0029] like Figure 1 and Figure 2 As shown, four second guide rods 18 arranged in a square are fixedly connected to the upper surface of the worktable 1. The second guide rods 18 pass through the placement table 4. When the first electric push rod 2 drives the U-shaped plate 3 and the placement table 4 to move, the placement table 4 can be guided by the four second guide rods 18.
[0030] like Figure 1 , Figure 3 and Figure 4 As shown, two symmetrically arranged limiting plates 19 are fixedly connected to the lower surface of the worktable 1. The upper surface of the limiting plates 19 is in contact with the bottom of the placement table 4. After the motor stator is ground, the first electric push rod 2 drives the U-shaped plate 3 and the placement table 4 to move down, so that the placement table 4 is in contact with the limiting plates 19 and the placement table 4 is reset. Then, the second electric push rod 10 drives one of the mounting plates 7 to move away from the motor stator, so that the two mounting plates 7 and the two clamping plates 8 move away from each other, releasing the fixation of the motor stator. Finally, the processed motor stator can be directly removed from the placement table 4.
[0031] Specifically, when using this motor stator internal grinding device: the first electric push rod 2, the second electric push rod 10, and the drive motor 15 are all electrically connected to an external control power supply. The motor stator to be processed is placed on the top of the placement table 4, so that the motor stator is located between the two arc-shaped openings 9. The second electric push rod 10 is started, which drives one of the mounting plates 7 to move closer to the motor stator, causing the mounting plate 7 to slide on the two first guide rods 6. When one of the mounting plates 7 moves, it drives the two second connecting plates 12 to rotate. The two first connecting plates 11 are rotated by the two second connecting plates 12, which in turn drive the other two second connecting plates 12 to rotate. These second connecting plates 12 then drive the other mounting plate 7 to move, causing the two mounting plates 7 to move synchronously in opposite directions and approach each other. The two clamping plates 8 follow the movement of the two mounting plates 7, bringing them closer together. When the arc-shaped openings 9 on both clamping plates 8 are in contact with the outer surface of the motor stator, the second electric push rod 10 is stopped. 8 can fix the motor stator. Simultaneously, the motor stator is concentric with the grinding disc 17 and the circular opening 13, with the motor stator located directly below the grinding disc 17. Then, the drive motor 15 and the first electric push rod 2 are started. The drive motor 15 drives the connecting shaft 16 and the grinding disc 17 to rotate. The first electric push rod 2 drives the U-shaped plate 3 and the placement table 4 to move upwards, and the motor stator moves upwards accordingly. When the inner wall of the motor stator contacts the high-speed rotating grinding disc 17, grinding can be achieved on the inner wall of the motor stator. When the circular opening on the placement table 4... When 13 is located outside the grinding disc 17, the grinding disc 17 is located below the electronic stator, and the grinding process of the inner wall of the electronic stator is completed. Then, the first electric push rod 2 drives the U-shaped plate 3 and the placement table 4 to move down, so that the placement table 4 fits with the limiting plate 19 and the placement table 4 is reset. Then, the second electric push rod 10 drives one of the mounting plates 7 to move away from the motor stator, so that the two mounting plates 7 and the two clamping plates 8 move away from each other, and the fixation of the motor stator is released. Finally, the motor stator after processing can be directly removed from the placement table 4.
[0032] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the utility model, are covered within the scope of the claims of the present utility model.
Claims
1. A grinding device for the inner cylinder of an electric motor stator, comprising a worktable (1), characterized in that, A first electric push rod (2) is fixedly connected to the center of the upper surface of the workbench (1). A U-shaped plate (3) is fixedly connected to the push rod end of the first electric push rod (2). A placement platform (4) is fixedly connected to the top of the U-shaped plate (3). A mounting frame (5) is fixedly connected to the top of the placement platform (4). Two symmetrically arranged first guide rods (6) are fixedly connected to the inner surface of the mounting frame (5). Two symmetrically arranged mounting plates (7) are slidably sleeved on the two first guide rods (6). A clamping plate (8) is fixedly installed on one side surface of the mounting plate (7). The clamping plate (8) has an arc-shaped opening (9) on the side away from the mounting plate (7). A second electric push rod (10) is fixedly installed in the middle of the inner surface of one side of the mounting frame (5). Two first connecting plates (11) are rotatably connected to the inner surface of the mounting frame (5). A second connecting plate (12) is rotatably connected to both ends of the first connecting plate (11). The end of the second connecting plate (12) away from the first connecting plate (11) is rotatably connected to the mounting plate (7). A circular opening (13) is opened at the center of the upper surface of the placement platform (4).
2. The motor stator internal grinding device according to claim 1, characterized in that, A connecting frame (14) is fixedly installed on the top of the workbench (1). A drive motor (15) is fixedly installed at the center of the top of the connecting frame (14). A connecting shaft (16) is fixedly connected to the output end of the drive motor (15). A grinding disc (17) is fixedly installed at the end of the connecting shaft (16) away from the drive motor (15).
3. The motor stator internal grinding device according to claim 1, characterized in that, Four second guide rods (18) arranged in a square are fixedly connected to the upper surface of the workbench (1), and the second guide rods (18) pass through the placement table (4).
4. The motor stator internal grinding device according to claim 1, characterized in that, The workbench (1) has two symmetrically arranged limiting plates (19) fixedly connected to its lower surface, and the upper surface of the limiting plates (19) is in contact with the bottom of the placement table (4).
5. The motor stator internal grinding device according to claim 2, characterized in that, The grinding disc (17) is located directly above the circular opening (13), and the diameter of the circular opening (13) is larger than the diameter of the grinding disc (17).
6. The motor stator internal grinding device according to claim 1, characterized in that, The two clamps (8) are symmetrically distributed about the central axis of the first guide rod (6).
7. The motor stator internal grinding device according to claim 1, characterized in that, The push rod end of the second electric push rod (10) is fixedly connected to one of the mounting plates (7).