A polishing device for motor rotor production
By using multi-angle, multi-point grinding components and dust extraction components, the problems of low efficiency and debris diffusion in motor rotor grinding devices have been solved, achieving efficient and uniform grinding results and stable operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG GAOQI MOTOR CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-06-19
AI Technical Summary
Existing grinding equipment for motor rotor production is inefficient, produces uneven grinding results, and causes severe chip dispersion.
It employs multi-angle, multi-point grinding components, and achieves efficient and uniform grinding through the radial displacement adjustment of synchronous adjustment components and multiple grinding rollers, while suppressing the spread of debris through a dust collection component.
This achieves efficient and uniform grinding of the rotor, improves grinding efficiency, effectively suppresses debris diffusion, and ensures the operational stability of the device.
Smart Images

Figure CN224373556U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of motor rotor grinding technology, specifically relating to a grinding device for motor rotor production. Background Technology
[0002] The motor rotor is a key component of the motor. It rotates inside the stator and generates torque through electromagnetic interaction, thereby realizing the conversion of electrical energy into mechanical energy. The smoothness and flatness of the rotor surface directly affect the efficiency, noise and vibration of the motor during operation. Therefore, it is necessary to use a special grinding device for motor rotor production to perform precision machining and grinding.
[0003] Existing grinding equipment for motor rotor production typically uses common clamping devices to hold the rotor and then uses a traditional grinding machine to complete the operation. Although this method can meet basic grinding needs, there are some problems in actual operation: First, the grinding points of traditional grinding machines are limited, resulting in low efficiency. In order to grind the rotor comprehensively, the grinding head needs to be moved frequently to cover different areas, which often results in uneven grinding effect and affects product quality. Utility Model Content
[0004] In view of this, the present invention provides a grinding device for motor rotor production, which can achieve simultaneous grinding of rotor at multiple angles and points through grinding components, thereby improving efficiency. Through the synchronous rotation of multiple grinding rollers and radial displacement adjustment, the rotor can be ground comprehensively, achieving a high-efficiency and uniform grinding effect. At the same time, the rotating cylinder effectively suppresses the diffusion of debris.
[0005] To solve the above-mentioned technical problems, this utility model provides a grinding device for motor rotor production, including a worktable and a lifting mechanism at the upper end. The end of the lifting mechanism is provided with a grinding component, which includes a rotating cylinder rotatably connected to the end of the lifting mechanism. The upper end of the inner cavity of the rotating cylinder is provided with a fixed plate, and the fixed plate is provided with multiple guide grooves. Each guide groove is slidably connected with a sliding block. The lower end of each sliding block is provided with a grinding roller. Each sliding block is provided with a motor, and the output shaft of each motor is fixedly connected to the grinding roller located on the same sliding block. The rotating cylinder is also provided with a synchronous adjustment component for adjusting the movement of the sliding blocks, which realizes simultaneous grinding of the rotor at multiple angles and multiple points, improving efficiency. Through the synchronous rotation and radial displacement adjustment of multiple grinding rollers, the rotor can be ground comprehensively, achieving a high-efficiency and uniform grinding effect. At the same time, the rotating cylinder effectively suppresses the diffusion of debris.
[0006] The synchronous adjustment assembly includes a fixed ring located at the center of the shaft between the rotating cylinder and the fixed plate. Multiple lead screws are rotatably connected between the outer arc surface of the fixed ring and the inner arc surface of the rotating cylinder. Each lead screw has a bevel gear one at its inner end. A bevel gear two is rotatably connected at the center of the upper end of the fixed plate. Both bevel gear one and bevel gear two are located inside the fixed ring. Both bevel gear one and bevel gear two are meshed and connected, thus playing the role of synchronous drive.
[0007] The grinding assembly also includes a second motor mounted on the lifting mechanism. The output shaft of the second motor is fixedly connected to the rotating cylinder, thus providing a driving source for the rotating cylinder.
[0008] The grinding assembly also includes a motor three located on the outer arc surface of the rotating cylinder. The inner end of the motor three is fixedly connected to the outer end of one of the lead screws, thus providing a drive source for the lead screw.
[0009] Each guide groove is equipped with a folding baffle, and each folding baffle has a through-hole that matches the sliding block, which serves to fold debris.
[0010] It also includes a dust collection component, which includes a dust collection ring rotatably connected to the lower end of the rotating cylinder. The dust collection ring has a negative pressure port on its outer arc surface with a negative pressure tube inside, which serves as a negative pressure dust collection device.
[0011] The lifting mechanism includes a rectangular tube set on the upper end of the worktable, a sliding frame slidably connected inside the rectangular tube, an electric telescopic rod between the sliding frame and the rectangular tube, a groove on the sliding frame that cooperates with the telescopic end of the electric telescopic rod, a rotating cylinder rotatably connected to the lower end of the sliding frame, and a second motor located at the upper end of the sliding frame, which serves to adjust the height.
[0012] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:
[0013] 1. The three motors start, driving one of the lead screws. When the lead screw rotates, it drives the first bevel gear on it to rotate synchronously. When the first bevel gear rotates, it drives the other first bevel gears and the lead screw to rotate synchronously through the second bevel gear meshing with it. This drives the sliding block and its auxiliary mechanism to move along the guide groove on the fixed plate, realizing the synchronous adjustment of the radial position of all grinding rollers and ensuring that they are in uniform contact with the rotor surface. Then, the first and second motors drive the rotation, so that multiple grinding rollers rotate around the center of the rotor while rotating on their own axis. This achieves multi-angle and multi-point simultaneous grinding of the rotor, improving efficiency. Through the synchronous rotation of multiple grinding rollers and the adjustment of radial displacement, the rotor can be ground comprehensively, achieving a highly efficient and uniform grinding effect. At the same time, the rotating cylinder effectively suppresses the diffusion of debris.
[0014] 2. The dust collection ring forms a negative pressure field through the negative pressure pipe, which adsorbs and collects the debris generated during grinding. The through-hole of the folding baffle allows the sliding block to move smoothly, while preventing debris from entering the guide groove, further ensuring the stability of the device operation.
[0015] 3. Fix the motor rotor to be ground on the fixture on the worktable, and then push the sliding frame down along the rectangular tube by starting the electric telescopic rod of the worktable until the motor rotor is between multiple grinding rollers, so as to adjust the height of the grinding rollers. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the main structure of a grinding device for producing motor rotors according to this utility model;
[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;
[0018] Figure 3 This is an enlarged structural diagram of point A in this utility model;
[0019] Figure 4 This is an enlarged structural diagram of section B of this utility model.
[0020] Explanation of reference numerals in the attached drawings: 100, workbench; 200, rotating cylinder; 201, fixed plate; 202, guide groove; 203, sliding block; 204, grinding roller; 205, motor one; 206, fixed ring; 207, lead screw; 208, bevel gear one; 209, bevel gear two; 210, motor two; 211, motor three; 300, folding baffle; 400, dust collection ring; 401, negative pressure pipe; 500, rectangular cylinder; 501, sliding frame; 502, electric telescopic rod. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the appendices of the embodiments of this utility model. Figure 1-4 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.
[0022] This embodiment provides a grinding device for motor rotor production, such as... Figure 1-4As shown: The system includes a worktable 100 and a lifting mechanism located at the upper end. A grinding assembly is located at the end of the lifting mechanism. The grinding assembly includes a rotating cylinder 200 rotatably connected to the end of the lifting mechanism. A fixed plate 201 is located at the upper end of the inner cavity of the rotating cylinder 200. Multiple guide grooves 202 are provided on the fixed plate 201. A sliding block 203 is slidably connected in each guide groove 202. A grinding roller 204 is located at the lower end of each sliding block 203. A motor 205 is located within each sliding block 203. The output shaft of each motor 205 is fixedly connected to the grinding roller 204 located on the same sliding block 203. A synchronous adjustment assembly for adjusting the movement of the sliding blocks 203 is also provided inside the rotating cylinder 200. The synchronous adjustment assembly includes a fixing ring 206 located at the axis between the rotating cylinder 200 and the fixed plate 201. Multiple lead screws 207 are rotatably connected between the outer arc surface of the fixed ring 206 and the inner arc surface of the rotating cylinder 200. Each lead screw 207 has a bevel gear 208 at its inner end. A bevel gear 209 is rotatably connected at the upper shaft of the fixed plate 201. Both bevel gear 208 and bevel gear 209 are located inside the fixed ring 206 and are meshed with bevel gear 209. The grinding assembly also includes a motor 210 mounted on the lifting mechanism. The output shaft of motor 210 is fixedly connected to the rotating cylinder 200. The grinding assembly also includes a motor 3 211 mounted on the outer arc surface of the rotating cylinder 200. The inner end of motor 3 211 is fixedly connected to the outer end of one of the lead screws 207. Both motor 3 211 and motor 2 210 are electrically connected to an external controller via slip rings.
[0023] Motor 3 211 starts, driving one of the lead screws 207. When the lead screw 207 rotates, it drives the bevel gear 1 208 on it to rotate synchronously. When the bevel gear 1 208 rotates, it drives the remaining bevel gears 1 208 and the lead screw 207 to rotate synchronously through the bevel gear 2 209 that meshes with it. This drives the sliding block 203 and its auxiliary mechanism to move along the guide groove 202 on the fixed plate 201, realizing the synchronous adjustment of the radial position of all the grinding rollers 204, ensuring that they are in uniform contact with the rotor surface. Then, motor 1 205 and motor 2 210 drive the rotation, so that multiple grinding rollers 204 rotate around the rotor center in a circular motion while also rotating on their own axis. This achieves simultaneous grinding of the rotor at multiple angles and points, improving efficiency. Through the synchronous rotation and radial displacement adjustment of multiple grinding rollers 204, the rotor can be ground comprehensively, achieving a highly efficient and uniform grinding effect. At the same time, the rotating cylinder 200 effectively suppresses the diffusion of debris.
[0024] like Figure 2-3 As shown, each guide groove 202 is provided with a folding baffle 300, and each folding baffle 300 has a through opening that is compatible with the sliding block 203.
[0025] The through-hole of the folding baffle 300 allows the sliding block to move smoothly while preventing debris from entering the guide groove, further ensuring the stability of the device operation.
[0026] like Figure 1-4 As shown, it also includes a dust collection component, which includes a dust collection ring 400 rotatably connected to the lower end of the rotating cylinder 200. A negative pressure pipe 401 is provided in the negative pressure port provided on the outer arc surface of the dust collection ring 400, and the negative pressure pipe 401 is connected to an external negative pressure dust collector.
[0027] The external negative pressure dust collector generates negative pressure suction, and through the negative pressure pipe 401, it creates a negative pressure field in the dust collection ring 400, thereby adsorbing and collecting the debris generated during grinding.
[0028] like Figure 1-2 As shown, the lifting mechanism includes a rectangular tube 500 disposed on the upper end of the workbench 100, a sliding frame 501 slidably connected inside the rectangular tube 500, an electric telescopic rod 502 disposed between the sliding frame 501 and the rectangular tube 500, a groove provided on the sliding frame 501 to cooperate with the telescopic end of the electric telescopic rod 502, a rotating cylinder 200 rotatably connected to the lower end of the sliding frame 501, and a motor 210 located at the upper end of the sliding frame 501.
[0029] The electric telescopic rod 502 of the workbench 100 is activated to push the sliding frame 501 down along the rectangular tube 500 until the motor rotor is between the multiple grinding rollers 204, thereby adjusting the height of the rotating tube 200 and its auxiliary mechanisms.
[0030] The working principle of the grinding device for producing motor rotors provided by this utility model is as follows: First, the motor rotor to be ground is fixed on the fixture on the worktable 100. Then, the sliding frame 501 is pushed down along the rectangular tube 500 by the electric telescopic rod 502 of the worktable 100 until the motor rotor is between multiple grinding rollers 204. Subsequently, the motor 211 is started, driving one of the lead screws 207. When the lead screw 207 rotates, it drives the bevel gear 208 on it to rotate synchronously. When the bevel gear 208 rotates, it drives the remaining bevel gears 208 and the lead screw 207 to rotate synchronously through the bevel gear 209 that meshes with it. This drives the sliding block 203 and its auxiliary mechanism to move along the guide groove 202 on the fixed plate 201, realizing the movement of all the grinding rollers. The radial position of the grinding roller 204 is synchronously adjusted to ensure uniform contact with the rotor surface. Then, the first motor 205 and the second motor 210 drive the rotation, causing multiple grinding rollers 204 to rotate around the rotor center while simultaneously rotating on their own axis. This achieves simultaneous grinding of the rotor at multiple angles and points, improving efficiency. Through the synchronous rotation and radial displacement adjustment of multiple grinding rollers 204, the rotor can be ground comprehensively, achieving a highly efficient and uniform grinding effect. At the same time, the rotating cylinder 200 effectively suppresses the diffusion of debris. During this process, the dust collection ring 400 forms a negative pressure field through the negative pressure pipe 401, adsorbing and collecting the debris generated during grinding. The through-hole of the folding baffle 300 allows the sliding block to move smoothly while preventing debris from entering the guide groove, further ensuring the stability of the device operation.
[0031] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0032] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.
Claims
1. A grinding device for motor rotor production, characterized in that: The device includes a worktable (100) and a lifting mechanism located at the upper end. The end of the lifting mechanism is provided with a grinding assembly. The grinding assembly includes a rotating cylinder (200) rotatably connected to the end of the lifting mechanism. The upper end of the inner cavity of the rotating cylinder (200) is provided with a fixed plate (201). The fixed plate (201) is provided with multiple guide grooves (202). Each guide groove (202) is slidably connected with a sliding block (203). The lower end of each sliding block (203) is provided with a grinding roller (204). Each sliding block (203) is provided with a motor (205). The output shaft of the motor (205) is fixedly connected to the grinding roller (204) located on the same sliding block (203). The rotating cylinder (200) is also provided with a synchronous adjustment assembly for adjusting the movement of the sliding block (203).
2. The polishing device for motor rotor production of claim 1, wherein: The synchronous adjustment assembly includes a fixed ring (206) located at the center of the axis between the rotating cylinder (200) and the fixed plate (201). A plurality of lead screws (207) are rotatably connected between the outer arc surface of the fixed ring (206) and the inner arc surface of the rotating cylinder (200). Each lead screw (207) is provided with a bevel gear one (208) at its inner end. A bevel gear two (209) is rotatably connected at the center of the upper end of the fixed plate (201). Both bevel gear one (208) and bevel gear two (209) are located inside the fixed ring (206), and both bevel gear one (208) and bevel gear two (209) are meshed together.
3. The polishing device for motor rotor production of claim 1, wherein: The grinding assembly also includes a second motor (210) mounted on the lifting mechanism, the output shaft of which is fixedly connected to the rotating cylinder (200).
4. The polishing device for motor rotor production of claim 2, wherein: The grinding assembly also includes a motor three (211) disposed on the outer arc surface of the rotating cylinder (200), the inner end of the motor three (211) being fixedly connected to the outer end of one of the lead screws (207).
5. The polishing device for motor rotor production as claimed in claim 1, wherein: Each of the guide grooves (202) is provided with a folding baffle (300), and each of the folding baffles (300) has a through opening that is compatible with the sliding block (203).
6. The polishing device for motor rotor production of claim 1, wherein: It also includes a dust collection assembly, which includes a dust collection ring (400) rotatably connected to the lower end of the rotating cylinder (200), and a negative pressure pipe (401) is provided inside the negative pressure port on the outer arc surface of the dust collection ring (400).
7. The polishing device for producing a motor rotor according to claim 3, characterized in that: The lifting mechanism includes a rectangular tube (500) disposed on the upper end of the workbench (100), a sliding frame (501) slidably connected inside the rectangular tube (500), an electric telescopic rod (502) provided between the sliding frame (501) and the rectangular tube (500), a groove provided on the sliding frame (501) to cooperate with the telescopic end of the electric telescopic rod (502), a rotating cylinder (200) rotatably connected to the lower end of the sliding frame (501), and a second motor (210) located at the upper end of the sliding frame (501).