Motor shaft polishing device

Abstract

The utility model discloses a motor shaft polishes polishing device, include: main body, clamping subassembly is arranged at one side of main body top, is used for fixing to motor shaft to drive motor shaft and rotates around its axis, support mechanism has several groups and is arranged at the top of main body, is used for supporting motor shaft, slide rail is arranged at the top of main body and is along the length direction of main body setting, and with support mechanism sliding fit, polishing subassembly can polish the axle, the polishing subassembly includes the polishing unit that can move up and down and reciprocatingly moves along the length direction of motor shaft, the polishing unit includes the lift piece that can move up and down and the support plate of installation in the lift piece one end. The utility model discloses by adopting the polishing abrasive tape that can move up and down, and the polishing abrasive tape is contacted with motor shaft, can well adapt the surface of motor shaft, and polishes more evenly.

Description

Technical Field

[0001] This utility model relates to the technical field of shaft workpiece processing equipment, specifically a motor shaft grinding and polishing device. Background Technology

[0002] As one of the core components of a motor, the surface finish of the motor shaft directly affects the motor's performance, lifespan, and operational stability. Surface grinding and polishing are indispensable key processes in the production of motor shafts, aiming to eliminate defects such as burrs, scratches, and oxide layers generated during processing, thereby improving surface smoothness and fatigue strength.

[0003] Chinese utility model patent (authorization announcement number CN221455514U) discloses a motor shaft grinding and polishing device. Its structure includes a processing table, a clamping assembly, and a grinding assembly. The clamping assembly and the grinding assembly are respectively disposed at opposite ends of the top of the processing table. The clamping assembly includes a motor base, a rotary motor, and a chuck. The motor base is disposed on the top of the processing table, and the rotary motor is disposed on the motor base. The chuck is fixedly connected to the output end of the rotary motor. The grinding assembly includes a slide rail, a slide table, and a grinding block. The slide rail is disposed on the top of the processing table, and the slide table is slidably disposed on the slide rail. The grinding block is detachably disposed on the top of the slide table. This grinding and polishing device removes burrs from the motor shaft by means of a grinding block in the grinding assembly contacting the motor shaft through bolts and by means of the rotation of the motor shaft.

[0004] However, the existing motor shaft grinding and polishing device disclosed in this technology relies solely on a simple bolt connection between the grinding block and the motor shaft. This makes it difficult to ensure that the grinding block maintains a stable and uniform contact pressure with the motor shaft surface throughout the grinding process, resulting in uneven grinding. Some areas are over-ground while others are under-ground, severely affecting the flatness and smoothness of the motor shaft surface and failing to meet the quality requirements of high-precision motor shafts. On the other hand, when dealing with motor shafts of different specifications and sizes, adjusting the position and pressure of the grinding block is cumbersome and complex, often requiring repeated manual adjustments of the bolts, consuming a significant amount of time and manpower, and resulting in extremely low production efficiency. Utility Model Content

[0005] The purpose of this utility model application is to provide a motor shaft grinding and polishing device. By using a grinding belt that can move up and down, the grinding belt contacts the motor shaft, which can adapt well to the surface of the motor shaft and make the grinding more uniform.

[0006] To address the problems of existing technologies, this utility model application provides a motor shaft grinding and polishing device, characterized by comprising: a main body; a clamping assembly disposed on one side of the top of the main body for fixing the motor shaft and driving the motor shaft to rotate around its axis; a support mechanism having several sets disposed above the main body for supporting the motor shaft; a slide rail disposed on the top of the main body and arranged along the length direction of the main body, and slidingly engaging with the support mechanism; and a grinding assembly capable of grinding the shaft; the grinding assembly includes a grinding unit capable of moving up and down and reciprocating along the length direction of the motor shaft, the grinding unit including a lifting component capable of moving up and down and a support plate installed at one end of the lifting component, the side of the support plate also having two second guide wheels disposed via bearing seats, and the bottom of the side of the support plate also having a first guide wheel disposed via bearing seats, the first guide wheel and the second guide wheel being fitted with grinding sandpaper.

[0007] Preferably, the grinding assembly further includes a tensioning wheel disposed at the center of the side of the support plate and capable of moving up and down, and the grinding belt is sleeved on the tensioning wheel. The grinding assembly also includes a second telescopic drive member fixed to the side of the support plate and capable of driving the tensioning wheel to move up and down.

[0008] Preferably, the grinding assembly further includes a second rotary drive component fixed to the support plate and capable of driving one of the second guide wheels to rotate, the output end of the second rotary drive component being connected to one of the second guide wheels.

[0009] Preferably, the polishing assembly includes a first moving mechanism disposed on the back of the main body and capable of driving the polishing unit to reciprocate along the length direction of the motor shaft, and the polishing assembly also includes a moving plate disposed on the main body.

[0010] Preferably, the polishing assembly further includes a second moving mechanism disposed at the front of the movable plate and capable of driving the polishing unit to move up and down, wherein the lifting component in the polishing unit cooperates with the second moving mechanism.

[0011] Preferably, the support mechanism includes a support base that slides with the slide rail, and the bottom of the support base is provided with a slider that can slide with the slide rail. The support base is also provided with a lifting seat that can move up and down, and the lifting seat is provided with a support wheel that can support the motor shaft. The support base is also provided with a first telescopic drive member that can drive the lifting seat to move up and down.

[0012] Preferably, threaded rods are provided on the front and rear sides of the support base, and pressure blocks are provided at the bottom of the threaded rods.

[0013] Preferably, the clamping assembly includes a support member fixed to one side of the top of the main body, and a chuck for fixing a motor shaft is rotatably disposed on one side of the support member. The clamping assembly also includes a first rotary drive member fixed to the support member on the side away from the chuck, and the first rotary drive member is connected to the chuck.

[0014] The advantages of this utility model application compared to the prior art are:

[0015] This application achieves efficient grinding of motor shafts by setting up a grinding unit. The grinding unit includes a first guide wheel and a second guide wheel, which together support the grinding belt. When the grinding belt contacts the surface of the motor shaft, a second rotary drive component drives the second guide wheel to rotate, thereby driving the grinding belt to circulate and achieve continuous grinding of the motor shaft surface. This design allows the grinding belt to apply uniform and stable pressure to the motor shaft surface, effectively avoiding the problems of over- or under-grinding in local areas compared to traditional grinding methods, and significantly improving the grinding uniformity of the motor shaft surface. At the same time, due to the good flexibility and adjustability of the grinding belt, it can easily adapt to motor shafts of different diameters. To further improve grinding accuracy and stability, this application specifically sets up an adjustable lifting seat. The lifting seat is equipped with support wheels. During the grinding process, by adjusting the height of the lifting seat, the support wheels are brought into close contact with the surface of the motor shaft to form a stable support structure. This design effectively counteracts the bending deformation of the motor shaft caused by its own weight, ensuring that the motor shaft maintains good straightness under high-speed rotation, thereby further improving the grinding quality and processing accuracy. Attached Figure Description

[0016] Figure 1 This is a first three-dimensional structural diagram of a motor shaft grinding and polishing device according to this utility model application.

[0017] Figure 2 This is a second three-dimensional structural diagram of a motor shaft grinding and polishing device according to this utility model application.

[0018] Figure 3 This is a three-dimensional structural diagram of the clamping component and support mechanism of a motor shaft grinding and polishing device according to this utility model application.

[0019] Figure 4 This is a three-dimensional structural diagram of the support mechanism of a motor shaft grinding and polishing device according to this utility model application.

[0020] Figure 5 This is a first three-dimensional structural diagram of the grinding unit of a motor shaft grinding and polishing device according to this utility model application.

[0021] Figure 6This is a schematic diagram of the second three-dimensional structure of the grinding unit of a motor shaft grinding and polishing device according to this utility model application.

[0022] The following components are labeled in the diagram: 1. Main body; 2. Clamping assembly; 21. Support component; 211. First rotary drive component; 212. Chuck; 3. Support mechanism; 31. Support base; 311. Slider; 32. Lifting base; 321. Support wheel; 322. First telescopic drive component; 33. Threaded rod; 331. Pressure block; 4. Slide rail; 5. Grinding assembly; 51. First moving mechanism; 52. Moving plate; 53. Second moving mechanism; 54. Grinding unit; 541. Lifting component; 542. Support plate; 543. First guide wheel; 544. Second guide wheel; 545. Tensioning wheel; 546. Second telescopic drive component; 547. Second rotary drive component; 548. Grinding belt. Detailed Implementation

[0023] To further understand the features, technical means, and specific objectives and functions achieved by this utility model application, the following detailed description of this utility model application is provided in conjunction with the accompanying drawings and specific embodiments.

[0024] Reference Figures 1-6 As shown, this utility model application provides a motor shaft grinding and polishing device, including: a main body 1; a clamping assembly 2, disposed on one side of the top of the main body 1, for fixing the motor shaft and driving the motor shaft to rotate around its axis; a support mechanism 3, having several sets and disposed above the main body 1, for supporting the motor shaft; a slide rail 4, disposed on the top of the main body 1 and arranged along the length direction of the main body 1, and slidingly engaged with the support mechanism 3; a grinding assembly 5, capable of grinding the shaft; the grinding assembly 5 includes a grinding unit 54 capable of moving up and down and reciprocating along the length direction of the motor shaft, the grinding unit 54 including a lifting member 541 capable of moving up and down and a support plate 542 installed at one end of the lifting member 541, the side of the support plate 542 is also provided with two second guide wheels 544 through bearing seats, and the bottom of the side of the support plate 542 is also provided with a first guide wheel 543 through bearing seats, and a grinding sanding belt 548 is also sleeved on the first guide wheel 543 and the second guide wheel 544.

[0025] Based on the length of the motor shaft, adjust the position of the support mechanism 3 on the slide rail 4 to ensure that the support mechanism 3 can evenly support the motor shaft. Fix the motor shaft to be ground onto the device using the clamping assembly 2, and start the clamping assembly 2 to drive the motor shaft to rotate around its axis. Adjust the distance between the grinding belt 548 and the motor shaft by moving the lifting member 541 up and down, ensuring that the grinding belt 548 is in close contact with the surface of the motor shaft. Simultaneously, the grinding unit 54 can reciprocate along the length of the motor shaft to grind the entire length of the motor shaft. The grinding belt 548 begins to rotate under the drive of the first guide wheel 543 and the second guide wheel 544. Because the motor shaft rotates around its axis under the drive of the clamping assembly 2, the grinding belt 548 and the surface of the motor shaft generate relative motion, removing burrs from the surface of the motor shaft through friction. The grinding belt 548 rotates in the opposite direction to the motor shaft to improve grinding efficiency.

[0026] The grinding assembly 5 also includes a tensioning wheel 545 located at the center of the side of the support plate 542 and capable of moving up and down, and a grinding belt 548 is sleeved on the tensioning wheel 545. The grinding assembly 5 also includes a second telescopic drive member 546 fixed to the side of the support plate 542 and capable of driving the tensioning wheel 545 to move up and down.

[0027] By controlling the extension and retraction of the second telescopic drive component 546, the position of the tensioning wheel 545 is adjusted, thereby achieving dynamic adjustment of the tension of the sanding belt 548 and ensuring that the sanding belt 548 is always in good working condition.

[0028] The grinding assembly 5 also includes a second rotary drive 547 fixed on the support plate 542 and capable of driving one of the second guide wheels 544 to rotate. The output end of the second rotary drive 547 is connected to one of the second guide wheels 544.

[0029] The second rotary drive 547 drives the second guide wheel 544 connected to it to rotate through its own rotational motion, thereby providing power for the operation of the grinding belt 548, enabling the grinding belt 548 to circulate at a predetermined speed and direction, and realize the grinding operation on the surface of the motor shaft.

[0030] The polishing assembly 5 includes a first moving mechanism 51 disposed on the back of the main body 1 and capable of driving the polishing unit 54 to reciprocate along the length of the motor shaft. The polishing assembly 5 also includes a movable plate 52 disposed on the main body 1. The polishing assembly 5 also includes a second moving mechanism 53 disposed at the front of the movable plate 52 and capable of driving the polishing unit 54 to move up and down. The lifting member 541 in the polishing unit 54 cooperates with the second moving mechanism 53.

[0031] The function of the first moving mechanism 51 is to provide power to the grinding unit 54 along the length of the motor shaft, enabling the grinding unit 54 to reciprocate according to a set stroke and speed. In this way, the grinding belt 548 can uniformly grind the entire length of the motor shaft. The second moving mechanism 53 drives the lifting component 541 to move up and down, thereby adjusting the distance between the grinding belt 548 and the motor shaft to adapt to the grinding needs of motor shafts of different diameters, ensuring that the grinding belt 548 can closely adhere to the surface of the motor shaft for effective grinding. The first moving mechanism 51 and the second moving mechanism 53 have the same structure. The first moving mechanism 51 and the second moving mechanism 53 can be a combination of motor lead screws, or they can be hydraulic cylinders, pneumatic cylinders, etc.—any mechanism capable of linear motion is acceptable.

[0032] The support mechanism 3 includes a support base 31 that slides with the slide rail 4, and a slider 311 that slides with the slide rail 4 at the bottom of the support base 31. Inside the support base 31, there is also a lifting seat 32 that can move up and down, and a support wheel 321 that supports the motor shaft is provided on the lifting seat 32. The support base 31 also contains a first telescopic drive member 322 that drives the lifting seat 32 to move up and down. Threaded rods 33 are also provided on the front and rear sides of the support base 31, and pressure blocks 331 are provided at the bottom of the threaded rods 33.

[0033] Based on the length of the motor shaft and the grinding position requirements, manually push the support base 31 so that it slides on the slide rail 4 via the slider 311, moving the support mechanism 3 to the appropriate position. Rotate the threaded rods 33 on both sides of the support base 31 to make the pressure block 331 make tight contact with the main body 1, fixing the support base 31 in the current position and preventing it from moving during grinding. Based on the diameter of the motor shaft, activate the first telescopic drive 322 to drive the lifting seat 32 to move up and down inside the support base 31, adjusting the height of the support wheel 321 so that the support wheel 321 can make good contact with the motor shaft, providing suitable support for the motor shaft.

[0034] The clamping assembly 2 includes a support member 21 fixed to one side of the top of the main body 1, and a chuck 212 for fixing the motor shaft is rotatably provided on one side of the support member 21. The clamping assembly 2 also includes a first rotary drive member 211 fixed on the support member 21 on the side away from the chuck 212, and the first rotary drive member 211 is connected to the chuck 212.

[0035] Insert one end of the motor shaft to be ground into the chuck 212, and firmly clamp the motor shaft by adjusting the jaws of the chuck 212. The first rotary drive component 211 transmits power to the chuck 212 through its own rotational motion, driving the chuck 212 to rotate the motor shaft.

[0036] The above embodiments only illustrate one or more implementation methods of this utility model application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model application, and these all fall within the protection scope of this utility model application. Therefore, the protection scope of this utility model application should be determined by the appended claims.

Claims

1. A motor shaft grinding and polishing device, characterized in that: include: Main body (1); The clamping assembly (2) is located on one side of the top of the main body (1) and is used to fix the motor shaft and drive the motor shaft to rotate around its axis. The support mechanism (3) has several sets and is set above the main body (1) for supporting the motor shaft; The slide rail (4) is set on the top of the main body (1) and along the length of the main body (1), and slides in cooperation with the support mechanism (3); The grinding assembly (5) is capable of grinding the shaft; The grinding assembly (5) includes a grinding unit (54) that can move up and down and reciprocate along the length of the motor shaft. The grinding unit (54) includes a lifting member (541) that can move up and down and a support plate (542) installed at one end of the lifting member (541). The side of the support plate (542) is also provided with two second guide wheels (544) through bearing seats, and the bottom of the side of the support plate (542) is also provided with a first guide wheel (543) through bearing seats. The first guide wheel (543) and the second guide wheel (544) are also fitted with a grinding belt (548).

2. The motor shaft grinding and polishing device according to claim 1, characterized in that: The grinding assembly (5) also includes a tensioning wheel (545) located at the center of the side of the support plate (542) and capable of moving up and down, and a grinding belt (548) is sleeved on the tensioning wheel (545). The grinding assembly (5) also includes a second telescopic drive member (546) fixed to the side of the support plate (542) and capable of driving the tensioning wheel (545) to move up and down.

3. The motor shaft grinding and polishing device according to claim 2, characterized in that: The grinding assembly (5) further includes a second rotary drive (547) fixed on the support plate (542) and capable of driving one of the second guide wheels (544) to rotate, the output end of the second rotary drive (547) being connected to one of the second guide wheels (544).

4. The motor shaft grinding and polishing device according to claim 3, characterized in that: The polishing assembly (5) includes a first moving mechanism (51) disposed on the back of the main body (1) and capable of driving the polishing unit (54) to reciprocate along the length direction of the motor shaft. The polishing assembly (5) also includes a moving plate (52) disposed on the main body (1).

5. The motor shaft grinding and polishing device according to claim 4, characterized in that: The polishing assembly (5) also includes a second moving mechanism (53) disposed at the front of the movable version (52) and capable of driving the polishing unit (54) to move up and down. The lifting component (541) in the polishing unit (54) cooperates with the second moving mechanism (53).

6. The motor shaft grinding and polishing device according to claim 1, characterized in that: The support mechanism (3) includes a support seat (31) that slides with the slide rail (4), and a slider (311) that slides with the slide rail (4) is provided at the bottom of the support seat (31). The support seat (31) also has a lifting seat (32) that can move up and down inside, and a support wheel (321) that can support the motor shaft is provided on the lifting seat (32). The support seat (31) also has a first telescopic drive member (322) that can drive the lifting seat (32) to move up and down.

7. The motor shaft grinding and polishing device according to claim 6, characterized in that: The support base (31) is provided with threaded rods (33) on both the front and rear sides, and a pressure block (331) is provided at the bottom of the threaded rods (33).

8. The motor shaft grinding and polishing device according to claim 6, characterized in that: The clamping assembly (2) includes a support member (21) fixed on one side of the top of the main body (1), and a chuck (212) for fixing the motor shaft is rotatably provided on one side of the support member (21). The clamping assembly (2) also includes a first rotary drive member (211) fixed on the support member (21) on the side away from the chuck (212), and the first rotary drive member (211) is connected to the chuck (212).

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