An automatic polishing and grinding equipment for motor shafts
By using a movable clamping and height adjustment mechanism, the problems of loosening and positional deviation during the polishing process of the automatic polishing and grinding equipment for motor shafts have been solved, achieving stable clamping and precise grinding of the motor shaft, and improving the accuracy and safety of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAICANG JOYI PRECISION MASCH CO LTD
- Filing Date
- 2025-09-04
- Publication Date
- 2026-07-31
AI Technical Summary
Existing automatic polishing and grinding equipment for motor shafts is prone to loosening during rotation and positional deviation during polishing, often resulting in over-polishing or under-polishing, and poor precision and stability.
The system employs a movable clamping mechanism and a height adjustment mechanism. Through the cooperation of a rocker arm and a threaded rod, it achieves stable clamping of the motor shaft and height adjustment of the polishing disc, ensuring that the motor shaft does not fall off during high-speed rotation and adapting to motor shafts of different lengths.
This effectively prevents the motor shaft from falling off during the polishing process, improving the precision and stability of the polishing and ensuring the accuracy of the polishing effect.
Smart Images
Figure CN224575257U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motor shaft manufacturing, and in particular to an automatic polishing and grinding equipment for motor shafts. Background Technology
[0002] The automatic polishing and grinding equipment for motor shafts is an automated precision machining equipment for motor shafts. It integrates automatic feeding, centering and clamping, multiple grinding stages, online detection, and sorting mechanisms. It can automatically feed and fix the shaft, adaptively adjust polishing parameters to grind various parts of the shaft, dynamically compensate for wheel wear, monitor accuracy in real time, and sort finished products.
[0003] When using an automatic polishing and grinding equipment with a motor shaft, parameters such as grinding speed, pressure, and feed speed are set in the equipment control system according to the diameter, material, and precision requirements of the motor shaft.
[0004] However, the automatic polishing and grinding equipment for motor shafts still has some shortcomings: the current automatic polishing and grinding equipment for motor shafts is prone to loosening during rotation, position deviation during polishing, over-polishing or under-polishing, and poor precision and stability. Therefore, an automatic polishing and grinding equipment for motor shafts is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides an automatic polishing and grinding equipment for motor shafts, which aims to improve the problems of loosening during rotation, position deviation during polishing, over-polishing or under-polishing, and poor precision and stability in the existing automatic polishing and grinding equipment for motor shafts.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: an automatic polishing and grinding device for motor shafts, comprising a base, wherein a movable clamping mechanism is provided at the upper end of the base; the movable clamping mechanism includes a rocker arm a, a threaded rod a fixedly connected to the rotation center axis of the rocker arm a, a slider a threadedly connected to the surface of the threaded rod a, a rack fixedly connected to the end of the slider a away from the threaded rod a, a gear meshing on the side of the rack, a guide plate slidably connected to the outer sidewall of the rack, two racks in total, and a slider b fixedly connected to the end of the other rack away from the gear, a motor a fixedly connected to the upper surface of the slider b, a fixed block fixedly connected to the output end of the motor a, a movable block elastically connected to the fixed block by a spring, a hinge rod hinged to one side of the movable block, a clamping block hinged to the end of the hinge rod away from the movable block, a guide block slidably connected to the bottom end of the clamping block, a motor shaft contacting the end of the movable block away from the fixed block, and a height adjustment mechanism fixedly connected to the outer sidewall of the slider b.
[0007] As a further description of the above technical solution: the height adjustment mechanism also includes a rocker arm b, a threaded rod b is fixedly connected to the rotation center axis of the rocker arm b, a threaded block is threadedly connected to the surface of the threaded rod b, a motor b is fixedly connected to the inner side wall of the threaded block, a polishing disc is fixedly connected to the output end of the motor b, and a slider c is rotatably connected to the rotation center axis at the end of the polishing disc away from the motor b.
[0008] As a further description of the above technical solution: the rotation center axis of the rocker arm a is rotatably connected to the inner side wall of the base, and the outer side wall of the threaded rod a is rotatably connected to the inner side wall of the base.
[0009] As a further description of the above technical solution: a groove is provided on the upper surface of the base, the bottom end of the slider a is slidably connected in the groove of the base, and the bottom end of the slider b is slidably connected in the groove of the base.
[0010] As a further description of the above technical solution: the rotation center shaft of the gear is rotatably connected to the center of the guide plate, the bottom end of the guide plate is fixedly connected to the top end of the base, two fixing blocks are provided, and the other fixing block is fixedly connected to the outer sidewall of the slider a.
[0011] As a further description of the above technical solution: one end of the spring is fixedly connected to the inner sidewall of the fixed block, and the other end of the spring is fixedly connected to the outer sidewall of the movable block.
[0012] As a further description of the above technical solution: the rotation center axis of the rocker arm b is rotatably connected to the inner side wall of the slider b, and the outer side wall of the threaded rod b is rotatably connected to the inner side wall of the slider b.
[0013] As a further description of the above technical solution: the outer sidewall of the slider c is slidably connected to the inner sidewall of the slider a.
[0014] This utility model has the following beneficial effects: 1. In this utility model, when it is necessary to polish the motor shaft, one end of the motor shaft is connected to the output shaft of motor a. The rocker arm a is shaken to rotate the threaded rod a, causing the slider a to move inward. At the same time, the rack will move inward along the groove in the guide plate, causing the slider b to also move inward, thereby clamping the motor shaft and preventing the motor shaft from falling off due to high-speed rotation during the polishing process, thus ensuring its safety and stability.
[0015] 2. In this utility model, before grinding and polishing, the length of the polishing disc can be adjusted according to the length of the motor shaft. The polishing disc is composed of two parts that are inserted together. The length of the polishing disc is adjusted according to the distance between slider a and slider b. At the same time, by shaking the rocker arm b, the threaded rod b is rotated to drive the threaded block to adjust the height of the polishing disc. Thus, during the grinding and polishing process, the length and height of the motor shaft can be matched to ensure the grinding and polishing effect. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of an automatic polishing and grinding equipment for motor shafts proposed in this utility model; Figure 2 This is a partial three-dimensional structural diagram of an automatic polishing and grinding equipment for motor shafts proposed in this utility model. Figure 3 This is a partial cross-sectional three-dimensional schematic diagram of an automatic polishing and grinding equipment for motor shafts proposed in this utility model; Figure 4 This is a partial three-dimensional structural diagram of an automatic polishing and grinding device for motor shafts proposed in this utility model.
[0017] Legend: 1. Base; 2. Movable clamping mechanism; 3. Height adjustment mechanism; 4. Motor shaft; 21. Rocker arm a; 22. Threaded rod a; 23. Slider a; 24. Rack; 25. Gear; 26. Slider b; 27. Motor a; 28. Guide plate; 29. Fixed block; 210. Spring; 211. Movable block; 212. Hinge rod; 213. Guide block; 214. Clamping block; 31. Rocker arm b; 32. Threaded rod b; 33. Threaded block; 34. Motor b; 35. Polishing disc; 36. Slider c. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Reference Figure 1 - Figure 3This utility model provides an embodiment of an automatic polishing and grinding device for motor shafts, including a base 1. The base 1 provides stable support for the entire assembly. A movable clamping mechanism 2 is provided at the upper end of the base 1. The movable clamping mechanism 2 includes a rocker arm a21. A threaded rod a22 is fixedly connected to the rotation center axis of the rocker arm a21. A slider a23 is threadedly connected to the surface of the threaded rod a22. A rack 24 is fixedly connected to the end of the slider a23 away from the threaded rod a22. By rocking the rocker arm a21, the threaded rod a22 is rotated, causing the slider a23 to move inward. At the same time, the rack 24 moves inward along the groove in the guide plate 28. A gear 25 meshes with the side of the rack 24. The rack 24 drives the meshing gear 25 to rotate and simultaneously drives the other side of the rack 24 to move. A guide plate 28 is slidably connected to the outer sidewall of the rack 24. The guide plate 28 guides the rack 24 and limits the movement of the gear 25. There are two racks 24, with the other rack 24 being away from the gear 25. A slider b26 is fixedly connected to one end. The movement of the rack 24 causes the slider b26 to move inward. A motor a27 is fixedly connected to the upper surface of the slider b26. The function of the motor a27 is to rotate the motor shaft 4. A fixed block 29 is fixedly connected to the output end of the motor a27. The fixed block 29 is elastically connected to the movable block 211 through the spring 210. A hinge rod 212 is hinged to one side of the movable block 211. A clamping block 214 is hinged to the end of the hinge rod 212 away from the movable block 211. When the two ends of the motor shaft 4 come together, the movable block 211 will be squeezed, causing the spring 210 to be compressed. The hinge rod 212 rotates, driving the clamping block 214 to come together inward, thereby clamping the motor shaft 4. This prevents the motor shaft 4 from falling off due to high-speed rotation during the grinding and polishing process, ensuring its safety and stability. A guide block 213 is slidably connected to the bottom end of the clamping block 214. The function of the guide block 213 is to guide the clamping block 214. A height adjustment mechanism 3 is fixedly connected to the outer side wall of the slider b26.
[0020] Reference Figure 1 - Figure 3The height adjustment mechanism 3 also includes a rocker arm b31. A threaded rod b32 is fixedly connected to the rotation center axis of the rocker arm b31. A threaded block 33 is threadedly connected to the surface of the threaded rod b32. A motor b34 is fixedly connected to the inner side wall of the threaded block 33. A polishing disc 35 is fixedly connected to the output end of the motor b34. By rocking the rocker arm b31, the threaded rod b32 is rotated, which in turn drives the threaded block 33 to adjust the height of the polishing disc 35. A slider c36 is rotatably connected to the rotation center axis at the end of the polishing disc 35 away from the motor b34. The function of the slider c36 is to adjust... The height here is aligned with the threaded block 33. The rotation center axis of the rocker arm a21 is rotatably connected to the inner side wall of the base 1, and the outer side wall of the threaded rod a22 is rotatably connected to the inner side wall of the base 1 to ensure the stability of the threaded rod a22 and the rocker arm a21 during rotation and prevent misalignment. A groove is provided on the upper surface of the base 1. The bottom end of the slider a23 is slidably connected to the groove of the base 1, and the bottom end of the slider b26 is slidably connected to the groove of the base 1. The groove on the upper surface of the base 1 fixes and guides the movement trajectory of the slider a23 and the slider b26 to prevent deviation.
[0021] Reference Figure 2 - Figure 4 The rotation center shaft of gear 25 is rotatably connected to the center of guide plate 28. Guide plate 28 fixes the rotation range of gear 25. The bottom end of guide plate 28 is fixedly connected to the top end of base 1. Base 1 ensures the stability of guide plate 28. Two fixing blocks 29 are provided, and the other fixing block 29 is fixedly connected to the outer side wall of slider a23. The distance between the two sets of fixing blocks 29 can be adjusted according to the length of motor shaft 4. One end of spring 210 is fixedly connected to the inner side wall of fixing block 29. The other end of 0 is fixedly connected to the outer sidewall of the movable block 211. The two ends of the spring 210 are fixed to ensure that the spring 210 does not deviate when it is compressed. The rotation center axis of the rocker arm b31 is rotatably connected to the inner sidewall of the slider b26. The outer sidewall of the threaded rod b32 is rotatably connected to the inner sidewall of the slider b26. The outer sidewall of the slider c36 is slidably connected to the inner sidewall of the slider a23. Through these connections, the stability of the entire height adjustment mechanism 3 is ensured, and deviation during operation is effectively prevented.
[0022] Working principle: When polishing the motor shaft, connect one end of the motor shaft 4 to the output shaft of the motor a27. Shake the rocker arm a21 to rotate the threaded rod a22, causing the slider a23 to move inward. At the same time, it will drive the rack 24 to move inward along the groove in the guide plate 28. When the rack 24 moves, it will drive the meshing gear 25 to rotate and drive the rack 24 on the other side to move, causing the slider b26 to move inward as well. This will bring the two ends of the motor shaft 4 together and squeeze the movable block 211, causing the spring 210 to compress. The hinge rod 212 will rotate, driving the clamping block 214 to move inward, thereby clamping the motor shaft 4. This prevents the motor shaft 4 from falling off due to high-speed rotation during the polishing process and ensures its safety and stability.
[0023] Before grinding and polishing, the length of the polishing disc 35 can be adjusted according to the length of the motor shaft 4. The polishing disc 35 is composed of two parts that are inserted together. One end of the polishing disc 35 is connected to the slider c36, and the other end is connected to the threaded block 33. They will adjust the length of the polishing disc 35 according to the distance between the slider a23 and the slider b26. At the same time, by shaking the rocker arm b31, the threaded rod b32 is rotated, which drives the threaded block 33 to adjust the height of the polishing disc 35. Thus, during the grinding and polishing process, the length and height of the motor shaft 4 can be perfectly matched to ensure the grinding and polishing effect.
[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An automatic polishing and grinding device for motor shafts, comprising a base (1), characterized in that: The upper end of the base (1) is provided with a movable clamping mechanism (2); The movable clamping mechanism (2) includes a rocker arm a (21), a threaded rod a (22) is fixedly connected to the rotation center axis of the rocker arm a (21), a slider a (23) is threadedly connected to the surface of the threaded rod a (22), a rack (24) is fixedly connected to the end of the slider a (23) away from the threaded rod a (22), a gear (25) meshes with the side of the rack (24), a guide plate (28) is slidably connected to the outer sidewall of the rack (24), there are two racks (24), and a slider b (26) is fixedly connected to the end of the other rack (24) away from the gear (25), the upper surface of the slider b (26) A motor a (27) is fixedly connected to the surface. A fixed block (29) is fixedly connected to the output end of the motor a (27). The fixed block (29) is elastically connected to a movable block (211) via a spring (210). A hinge rod (212) is hinged to one side of the movable block (211). A clamping block (214) is hinged to the end of the hinge rod (212) away from the movable block (211). A guide block (213) is slidably connected to the bottom end of the clamping block (214). A motor shaft (4) is contacted at the end of the movable block (211) away from the fixed block (29). A height adjustment mechanism (3) is fixedly connected to the outer sidewall of the slider b (26).
2. The motor shaft automatic polishing and grinding equipment according to claim 1, characterized in that: The height adjustment mechanism (3) also includes a rocker arm b (31), a threaded rod b (32) is fixedly connected to the rotation center axis of the rocker arm b (31), a threaded block (33) is threadedly connected to the surface of the threaded rod b (32), a motor b (34) is fixedly connected to the inner side wall of the threaded block (33), a polishing disc (35) is fixedly connected to the output end of the motor b (34), and a slider c (36) is rotatably connected to the rotation center axis of the end of the polishing disc (35) away from the motor b (34).
3. The motor shaft automatic polishing and grinding apparatus according to claim 1, characterized in that: The rotation center axis of the rocker arm a (21) is rotatably connected to the inner side wall of the base (1), and the outer side wall of the threaded rod a (22) is rotatably connected to the inner side wall of the base (1).
4. The motor shaft automatic polishing and grinding apparatus according to claim 1, wherein: The upper surface of the base (1) is provided with a groove, the bottom end of the slider a (23) is slidably connected in the groove of the base (1), and the bottom end of the slider b (26) is slidably connected in the groove of the base (1).
5. The motor shaft automatic polishing and grinding apparatus according to claim 1, characterized by: The rotation center shaft of the gear (25) is rotatably connected to the center of the guide plate (28), the bottom end of the guide plate (28) is fixedly connected to the top end of the base (1), and there are two fixing blocks (29), with the other fixing block (29) fixedly connected to the outer sidewall of the slider a (23).
6. The motor shaft automatic polishing and grinding apparatus according to claim 1, wherein: One end of the spring (210) is fixedly connected to the inner sidewall of the fixed block (29), and the other end of the spring (210) is fixedly connected to the outer sidewall of the movable block (211).
7. The motor shaft automatic polishing and grinding apparatus according to claim 2, characterized by: The rotation center axis of the rocker arm b (31) is rotatably connected to the inner side wall of the slider b (26), and the outer side wall of the threaded rod b (32) is rotatably connected to the inner side wall of the slider b (26).
8. The automatic polishing and grinding equipment for motor shafts according to claim 2, characterized in that: The outer sidewall of slider c (36) is slidably connected to the inner sidewall of slider a (23).