Motor rotor polishing tool
By designing a motor rotor grinding fixture, a quick positioning method is achieved by using a limiting component that fits tightly against the outer wall of the rotor. Combined with a robotic arm and a grinding motor, automatic grinding is performed, which solves the problems of positioning and grinding efficiency of burrs and flash in the rotor slots, improves grinding efficiency and reduces manual labor.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG SERDA VOLCANO ELECTRIC CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-05-01
AI Technical Summary
In existing technologies, burrs and flash in the rotor slots are difficult to locate and grind effectively, resulting in low grinding efficiency.
A motor rotor grinding fixture was designed, comprising a rotor placement platform, guide columns, axial moving parts, limiting parts, and a three-axis robotic arm. The limiting parts are tightly attached to the outer wall of the rotor to achieve rapid positioning, and automatic grinding is performed in combination with a grinding motor and a grinding head, while manual supplementary grinding is performed on the uncovered parts.
It enables rapid rotor positioning and grinding of most surfaces, improving grinding efficiency and reducing manual labor.
Smart Images
Figure CN224182820U_ABST
Abstract
Description
A motor rotor grinding fixture Technical Field
[0001] This utility model belongs to the field of rotor grinding, specifically relating to a motor rotor grinding fixture. Background Technology
[0002] During rotor processing, burrs and flash exist in the rotor slots, so they need to be ground and polished. Therefore, a motor rotor grinding fixture that is easy to position and install is required. Summary of the Invention
[0003] To solve at least one of the above-mentioned technical problems, this utility model provides a motor rotor grinding fixture, comprising:
[0004] The rotor placement platform has a placement groove for placing the rotor, and a guide post is fixed at the bottom of the placement groove; the guide post is fitted with an axially movable component.
[0005] At least one limiting member is provided. At least one mounting groove is provided on the inner wall of the placement groove. Rotating grooves are provided on the inner walls of both sides of the mounting groove. Rotating shafts that cooperate with the rotating grooves are fixed on both sides of the middle part of the limiting member. The rotor placement platform is provided with a mounting groove that communicates with the mounting groove. The limiting member is provided with at least two bent parts. The lower end of the limiting member is connected to the rotating shaft of the guide moving member. The upper end of the limiting member is connected to a limiting contact member through the rotating shaft. The limiting contact member is provided with a limiting protrusion that cooperates with the top surface of the rotor. A spring is installed between the axial moving member and the guide post.
[0006] A three-axis robotic arm is installed on the rotor placement platform located on one side of the placement groove. A grinding motor is fixed to the output end of the three-axis robotic arm, and a grinding head is fixed on the output shaft of the grinding motor.
[0007] Through the above technical solution, the three-axis robotic arm adopts the existing three-axis robotic arm hand or a three-axis moving platform. After the rotor of this utility model is placed into the placement groove, the axial moving part moves downward and then contacts the limiting part to clamp part of the outer wall of the rotor. After positioning, the three-axis robotic arm is opened to achieve rough grinding. Then the motor drill can be pulled out upward. Due to the spring action, the limiting part is reset. After removal, the small part that was not ground can be manually ground.
[0008] The limiting protrusion is equipped with a locking protrusion, which cooperates with the winding groove of the rotor or the heat dissipation groove on the outside of the rotor for limiting.
[0009] The limiting member is provided with a first bending portion and a second bending portion, both of which are located on the same side of the limiting member.
[0010] The limiting contact element is in close contact with the outer wall of the rotor after rotational limiting. The curvature of the inner wall of the limiting element is consistent with the curvature of the outer wall of the rotor.
[0011] The limiting member is provided in several parts, and after being closed, the cavity formed by the inner walls of the several parts is adapted to the shape of the rotor.
[0012] The pivot connection between the limiting contact and the limiting component can be achieved by a damping pivot, which enables a certain limiting effect between them.
[0013] Compared with the prior art, the advantages of this utility model are: the utility model has a simple structure, can realize the rapid positioning and limiting of the rotor, and the grinding of most of the external surfaces. Attached Figure Description
[0014] Figure 1 is a cross-sectional schematic diagram of the present invention;
[0015] Figure 2 is a cross-sectional schematic diagram of the present invention in use;
[0016] Figure 3 is a perspective view of the contact limiting component of this utility model;
[0017] Figure 4 is a cross-sectional schematic diagram of the rotor of this utility model when it is limited;
[0018] Figure label:
[0019] 1. Rotor placement platform; 2. Placement groove; 3. Guide column; 4. Axial moving part; 5. Limiting part; 6. Mounting groove; 7. Rotating groove; 8. Rotating shaft; 9. Mounting groove; 10. Bending part; 11. Limiting contact part; 12. Spring; 13. Limiting protrusion; 14. Three-axis robotic arm; 15. Grinding head; 16. Locking protrusion; 17. Rotor. Detailed Implementation
[0020] To enable those skilled in the art to better understand this utility model and to more clearly define the scope of protection claimed by this utility model, the present utility model is described in detail below with reference to certain specific embodiments. It should be noted that the following are only some specific embodiments of the present utility model concept, and are only a part of the embodiments of this utility model. The specific and direct description of related structures is only for the convenience of understanding this utility model, and the specific features do not necessarily or directly limit the scope of implementation of this utility model.
[0021] Referring to the accompanying drawings, this utility model adopts the following technical solution: This utility model provides a motor rotor grinding fixture, comprising:
[0022] The rotor placement platform 1 has a placement groove 2 for placing the rotor 17, and a guide post 3 is fixed at the bottom of the placement groove 2; the guide post 3 is fitted with an axial moving part 4.
[0023] At least one limiting member 5 is provided. At least one mounting groove 6 is provided on the inner wall of the placement groove 2. Rotating grooves 7 are provided on the inner walls of both sides of the mounting groove 6. Rotating shafts 8 that cooperate with the rotating grooves 7 are fixed on both sides of the middle part of the limiting member 5. The rotor placement platform 1 is provided with a mounting groove 9 that communicates with the mounting groove 6. The limiting member 5 is provided with at least two bent parts 10. The lower end of the limiting member 5 is connected to the rotating shaft of the guide moving member. The upper end of the limiting member 5 is connected to a limiting contact member 11 through the rotating shaft. The limiting contact member 11 is provided with a limiting protrusion 13 that cooperates with the top surface of the rotor 17. A spring 12 is installed between the axial moving member 4 and the guide post 3.
[0024] A three-axis robotic arm 14 is installed on the rotor placement platform 1 located on one side of the placement groove 2. A grinding motor is fixed to the output end of the three-axis robotic arm 14, and a grinding head 15 is fixed on the output shaft of the grinding motor.
[0025] Through the above technical solution, the three-axis robotic arm 14 adopts the existing three-axis robotic arm 14 hand, or a three-axis moving platform. After the rotor 17 of this utility model is placed into the placement groove 2, the axial moving part 4 moves downward and then contacts the limiting part 5 to clamp part of the outer wall of the rotor 17. After positioning, the three-axis robotic arm 14 is opened to perform rough grinding. Then the motor drill can be pulled out upward. Due to the action of the spring 12, the limiting part 5 is reset. After removal, the small part that was not ground can be manually ground.
[0026] The limiting protrusion 13 is equipped with a locking protrusion 16, which cooperates with the winding groove of the rotor 17 or the heat dissipation groove on the outside of the rotor 17 for limiting.
[0027] The limiting member 5 is provided with a first bending portion 10 and a second bending portion 10, and the first bending portion 10 and the second bending portion 10 are both opened on the same side of the limiting member 5.
[0028] The limiting contact 11 is in close contact with the outer wall of the rotor 17 after rotational limiting. The inner wall curvature of the limiting member 5 is consistent with the outer wall curvature of the rotor 17.
[0029] The limiting member 5 is provided in several parts, and the cavity formed by the several inner walls after closing is adapted to the shape of the rotor 17.
[0030] The pivot connection between the limiting contact 11 and the limiting member 5 can be achieved by a damping pivot, which enables the two to have a certain limiting effect.
[0031] Compared with the prior art, the advantages of this utility model are: the utility model has a simple structure and can realize the rapid positioning and limiting of the rotor 17, as well as the grinding of most of the external surfaces.
[0032] Reduce manual labor and increase polishing efficiency.
[0033] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.
Claims
1. A motor rotor grinding fixture, characterized in that: include: A rotor placement platform (1) has a placement groove (2) for placing a rotor (17), and a guide post (3) is fixed at the bottom of the placement groove (2). An axial moving part (4) is sleeved on the guide post (3). At least one limiting part (5) is provided. At least one mounting groove (6) is provided on the inner wall of the placement groove (2). Rotating grooves (7) are provided on the inner walls of both sides of the mounting groove (6). Rotating shafts (8) that cooperate with the rotating grooves (7) are fixed on both sides of the middle part of the limiting part (5). An mounting groove (9) communicating with the mounting groove (6) is provided on the rotor placement platform (1). At least one limiting part (5) is provided on the limiting part (5). Two bent parts (10), the lower end of the limiting member (5) is connected to the rotating shaft of the guide moving member, the upper end of the limiting member (5) is connected to the limiting contact member (11) through the rotating shaft, the limiting contact member (11) is provided with a limiting protrusion (13) that cooperates with the top surface of the rotor (17), a spring (12) is installed between the axial moving member (4) and the guide column (3); a three-axis robotic arm (14) is installed on the rotor placement platform (1) located on one side of the placement groove (2), the output end of the three-axis robotic arm (14) is fixed with a grinding motor, and a grinding head (15) is fixed on the output shaft of the grinding motor.
2. The motor rotor grinding fixture according to claim 1, characterized in that: The limiting protrusion (13) is equipped with a locking protrusion (16), which cooperates with the winding groove of the rotor (17) for limiting.
3. The motor rotor grinding fixture according to claim 1, characterized in that: The limiting member (5) is provided with a first bending part (10) and a second bending part (10), and the first bending part (10) and the second bending part (10) are both opened on the same side of the limiting member (5).
4. The motor rotor grinding fixture according to claim 1, characterized in that: The limiting contact (11) is in close contact with the outer wall of the rotor (17) after rotation limiting.
5. The motor rotor grinding fixture according to claim 2, characterized in that: The inner wall curvature of the limiting member (5) is consistent with the outer wall curvature of the rotor (17).
6. The motor rotor grinding fixture according to claim 5, characterized in that: The limiting member (5) is provided in several parts, and the cavity formed by the inner walls of the several parts after being closed is adapted to the shape of the rotor (17).