Stator polishing device convenient for fixing
By using a cylinder-driven bidirectional screw linkage and a V-groove adaptive clamping structure, the problems of easy clamping force failure and poor size adaptability in stator grinding devices are solved, achieving stable clamping and efficient grinding of the stator.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU NANXIN MOTOR
- Filing Date
- 2025-06-13
- Publication Date
- 2026-06-02
AI Technical Summary
Existing stator grinding devices rely on springs for clamping force, which are prone to failure and have poor adaptability to stators of different sizes, resulting in unstable clamping and cumbersome operation.
A rigid clamping structure with cylinder-driven bidirectional screw linkage, combined with V-groove adaptive clamping and anti-offset reinforcement design, is adopted to achieve stable clamping and rapid centering positioning of the stator.
The clamping force is stable and reliable, adaptable to stators of different sizes, avoiding clamping failure caused by spring fatigue, and improving the stability and operational efficiency of the stator grinding process.
Smart Images
Figure CN224310277U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stator processing technology, specifically to a stator grinding device that is easy to fix. Background Technology
[0002] The stator is a crucial component of rotating machinery such as electric motors. It typically consists of an iron core and windings, and is fixed inside the motor housing. It provides a stable magnetic field environment for motor operation and interacts with the rotor to convert electrical energy into mechanical energy. During stator manufacturing, the clamping process is critical, primarily for the following reasons: First, it ensures the tightness of the stator core. The stator core is made of multiple stacked silicon steel sheets. Clamping ensures a close fit between the sheets, reducing inter-sheet gaps and magnetic reluctance, thereby improving the magnetic conductivity of the motor's magnetic circuit and enabling more efficient energy conversion. Second, it maintains the shape and dimensional accuracy of the stator. During manufacturing, clamping prevents deformation of the core due to its own weight and processing stress, ensuring that key dimensions such as the inner and outer diameters of the stator meet design requirements, guaranteeing uniform air gaps with the rotor, and ensuring smooth motor operation. Finally, it enhances the overall strength of the stator. In subsequent processing stages, such as winding and impregnation, the compressed stator can better withstand external forces and process effects, avoiding structural loosening or damage due to vibration, collision, etc., thus ensuring the quality and reliability of the motor.
[0003] A search revealed that CN211841261U discloses a grinding device for motor stator production, comprising a housing with a chamber inside. A first motor is fixedly connected to the chamber, and a threaded column is fixedly connected to the output shaft of the first motor. One end of the threaded column is fixedly connected to a rotating shaft, and a bearing is sleeved on the surface of the rotating shaft. This invention features a miniature fan to cool the stator body during grinding, facilitating subsequent operation. A vacuum cleaner collects the residue generated during grinding, enabling unified disposal later. A first door with handles and hinges allows the stator body to be ground inside the housing, preventing dust and debris from spreading outside. The coordinated operation of these components improves the overall grinding and residue collection efficiency.
[0004] The above-mentioned grinding device for motor stator production has the following problems:
[0005] 1. Clamping force dependent on springs is prone to failure:
[0006] The existing clamping plates use springs to provide clamping force, which can easily lead to spring fatigue and a decrease in clamping force over long-term use. Grinding vibrations can also cause stator displacement.
[0007] II. Poor stator size adaptability:
[0008] The fixed mechanism lacks active adjustment capability, and the position of the clamping plate needs to be manually adjusted for stators of different diameters, which is cumbersome and makes it difficult to guarantee the center positioning accuracy. Utility Model Content
[0009] This invention proposes a stator grinding device that is easy to fix, which solves the problems of existing technology where the clamping force of the clamping plate depends on the spring and is prone to failure, as well as the poor adaptability to clamping different stator sizes.
[0010] The technical solution of this utility model is as follows: A stator grinding device that is easy to fix includes a support platform. The bottom of the support platform is provided with a rail groove and a sliding groove, respectively. A linkage component is provided at the bottom of the support platform. The linkage component includes a bidirectional screw rotatably connected in the rail groove, and a clamping and positioning component provided at opposite threads on both sides of the bidirectional screw and capable of moving synchronously towards or away from each other. The clamping and positioning component includes a clamping seat for clamping the stator body to be ground and a V-shaped groove. The V-shaped groove is provided on the side of the clamping seat.
[0011] Preferably, the top of the support platform is provided with anti-slip pads, and the anti-slip pads correspond to the positions of the two sets of clamping seats.
[0012] Preferably, a support platform is fixedly connected to the top side of the support platform, and rubber rings are provided through both sides of the support platform.
[0013] Preferably, the linkage component further includes a cylinder, which is fixedly installed inside the slide groove, and the linkage component further includes a push plate, which is disposed inside the slide groove and is fixedly connected to the output end of the cylinder.
[0014] Preferably, the linkage component further includes a T-shaped groove, which is integral with the push plate and slidably connected in the slide groove. The linkage component also includes a toothed groove group, which is distributed at the bottom of the push plate.
[0015] Preferably, the linkage component further includes a gear disk, which is in contact with the tooth groove group and is meshed and connected, and the middle part of the gear disk is fixedly connected to the bidirectional screw.
[0016] Preferably, the clamping and positioning assembly further includes two sets of slides, which are threadedly connected to opposite threads on both sides of the bidirectional screw. The clamping and positioning assembly also includes a U-shaped rod, which corresponds to the position of the rubber ring. One end of the U-shaped rod is fixedly connected to the slide, and the other end of the U-shaped rod is fixedly connected to the clamping seat.
[0017] Preferably, the clamping and positioning assembly further includes a reinforcing rod, which is disposed at the connection between the U-shaped rod and the clamping seat. One end of the reinforcing rod is fixedly connected to the clamping seat, and the other end of the reinforcing rod is fixedly connected to the U-shaped rod.
[0018] The beneficial effects of this utility model are as follows:
[0019] 1. Cylinder-bidirectional screw linkage drive replaces spring
[0020] Improvement: The cylinder pushes the push plate, and the toothed groove assembly meshes with the toothed disc to drive the bidirectional screw to rotate, which in turn drives the two side slides to move synchronously in opposite directions.
[0021] Advantages: Mechanical transmission replaces springs, ensuring stable and reliable clamping force and avoiding clamping failure caused by spring fatigue; cylinder drive allows for precise control of clamping force, adapting to high-intensity vibration conditions.
[0022] II. V-groove adaptive clamping structure
[0023] Improvement: The V-groove design on the side of the clamping seat, combined with the synchronous and symmetrical movement of the bidirectional screw, forms a progressive wrapping clamping of the stator's outer wall.
[0024] Advantages: The V-groove bevel can be adapted to stators of different diameters and automatically center and position them; no manual adjustment of the clamping plate is required, which significantly improves the clamping adaptability and efficiency of stators of different sizes.
[0025] III. Anti-displacement reinforcement design
[0026] Improvements: The U-shaped rod and the reinforcing rod form a triangular support structure, which enhances the rigidity of the clamping seat; the anti-slip pad on the support platform increases the friction of the stator bottom surface.
[0027] Advantages: The dual anti-slip and anti-deviation design ensures the stability of the stator position during clamping and avoids positional deviation caused by grinding vibration. Attached Figure Description
[0028] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0029] Figure 1 This is a schematic diagram of the top side of the support platform of this utility model;
[0030] Figure 2 This is a schematic diagram of the bottom side of the support platform of this utility model;
[0031] Figure 3 This is a schematic diagram showing the structural connection of the linkage component and the clamping and positioning component of this utility model;
[0032] Figure 4 for Figure 3 Enlarged view of region A;
[0033] In the diagram: 1. Support platform; 11. Anti-slip mat; 12. Support platform; 121. Rubber ring; 13. Rail groove; 14. Slide groove; 2. Linkage assembly; 21. Cylinder; 22. Push plate; 221. Gear assembly; 222. T-slot; 23. Gear plate; 231. Bidirectional screw; 3. Clamping and positioning assembly; 31. Slide seat; 32. U-shaped rod; 321. Reinforcing rod; 33. Clamping seat; 331. V-groove. Detailed Implementation
[0034] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.
[0035] Please see Figure 1 and Figure 2 and Figure 3 and Figure 4 This utility model provides a technical solution: a stator grinding device that is easy to fix, including a support platform 1. The bottom of the support platform 1 is provided with a horizontal and vertical rail groove 13 and a sliding groove 14 respectively. The bottom of the support platform 1 is provided with a linkage component 2. The linkage component 2 includes a bidirectional screw 231 rotatably connected in the rail groove 13, and a clamping and positioning component 3 provided at opposite threads on both sides of the bidirectional screw 231 and capable of moving synchronously in opposite directions or in opposite directions. The clamping and positioning component 3 includes a clamping seat 33 for clamping the stator body to be ground and a V-shaped groove 331. The V-shaped groove 331 is opened on the side of the clamping seat 33.
[0036] This patent solves the problem of easy failure of spring clamping by using a rigid clamping scheme driven by a cylinder and linked by a two-way screw. By utilizing a V-groove adaptive structure and a synchronous movement mechanism, it achieves rapid centering and positioning of the stator, significantly improving size adaptability and operational efficiency. The passive spring clamping and manual adjustment defects of the prior art have been completely improved, and the overall solution is more suitable for high-precision, multi-specification stator grinding scenarios.
[0037] Please see Figure 1 The top of the support platform 1 is provided with anti-slip pads 11, and the anti-slip pads 11 correspond to the positions of the two sets of clamping seats 33.
[0038] Using the anti-slip pad 11 to support the stator to be ground can increase the contact friction between the two.
[0039] Please see Figure 1A support platform 12 is fixedly connected to the top side of the support platform 1. Rubber rings 121 are provided through both sides of the support platform 12. The rubber rings 121 can prevent grinding debris above the anti-slip pad 11 from entering the rail groove 13 and the slide groove 14 and contacting the bidirectional screw 231 and the gear plate 23.
[0040] Please see Figure 3 and Figure 4 The linkage component 2 also includes a cylinder 21, which is fixedly installed inside the slide groove 14. The linkage component 2 also includes a push plate 22, which is located inside the slide groove 14 and is fixedly connected to the output end of the cylinder 21.
[0041] The linkage component 2 also includes a T-shaped groove 222, which is integral with the push plate 22 and slidably connected in the slide groove 14. This design can prevent the push plate 22 in the slide groove 14 from shifting position during sliding. The linkage component 2 also includes a toothed groove group 221, which is distributed at the bottom of the push plate 22.
[0042] The linkage component 2 also includes a gear disk 23, which is in contact with the tooth groove group 221 and is meshed and connected. The middle part of the gear disk 23 is fixedly connected to the bidirectional screw 231.
[0043] The clamping and positioning assembly 3 also includes two sets of slides 31, which are threadedly connected to opposite threads on both sides of the bidirectional screw 231. The clamping and positioning assembly 3 also includes a U-shaped rod 32, which corresponds to the position of the rubber ring 121. One end of the U-shaped rod 32 is fixedly connected to the slide 31, and the other end of the U-shaped rod 32 is fixedly connected to the clamping seat 33.
[0044] The clamping and positioning assembly 3 also includes a reinforcing rod 321. The reinforcing rod 321 is located at the connection between the U-shaped rod 32 and the clamping seat 33. One end of the reinforcing rod 321 is fixedly connected to the clamping seat 33, and the other end of the reinforcing rod 321 is fixedly connected to the U-shaped rod 32. The reinforcing rod 321 increases the stability of the connection between the clamping seat 33 and the U-shaped rod 32.
[0045] This design allows the bidirectional screw 231 to rotate under the extension and retraction of the cylinder 21, thereby enabling the two sets of clamping seats 33 located at the anti-slip pad 11 to move synchronously towards each other and complete the clamping work of the stator to be ground.
[0046] Working principle:
[0047] First, place the stator to be polished on the anti-slip pad 11. Then, start the cylinder 21 so that the extension end of the cylinder 21 drives the push plate 22 to slide horizontally in the slide groove 14. At this time, under the meshing action of the tooth groove group 221 and the tooth plate 23, the bidirectional screw 231 fixed at one end of the tooth plate 23 begins to rotate. At this time, the slide block 31 threaded to the opposite threads on both sides of the bidirectional screw 231 moves synchronously and drives the clamping seat 33 to move towards each other through the U-shaped rod 32 until the V-shaped groove 331 completes the clamping work of the stator to be polished.
[0048] Similarly, starting the cylinder 21 drives the push plate 22 to move and reset, which can complete the loosening and releasing of the stator after the clamping seat 33 and the V-groove 331 are polished.
[0049] The above steps not only improve the clamping stability during stator grinding, but also allow the V-groove 331 design to accommodate multiple stators of different sizes within a range.
[0050] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A stator grinding device that is easy to fix, comprising a support platform (1), characterized in that, The support platform (1) has a horizontal and vertical rail groove (13) and a sliding groove (14) respectively. The support platform (1) has a linkage component (2) at its bottom. The linkage component (2) includes a bidirectional screw (231) rotatably connected in the rail groove (13) and a clamping and positioning component (3) located at opposite threads on both sides of the bidirectional screw (231) and capable of moving synchronously towards or away from each other. The clamping and positioning component (3) includes a clamping seat (33) for clamping the stator body to be polished and a V-groove (331). The V-groove (331) is opened on the side of the clamping seat (33).
2. The stator grinding device for easy fixing according to claim 1, characterized in that, The top of the support platform (1) is provided with anti-slip pads (11), and the anti-slip pads (11) correspond to the positions of the two sets of clamping seats (33).
3. The stator grinding device for easy fixing according to claim 1, characterized in that, The support platform (1) is fixedly connected to the top side of the support platform (1), and rubber rings (121) are provided through the two sides of the support platform (12).
4. The stator grinding device for easy fixing according to claim 1, characterized in that, The linkage component (2) also includes a cylinder (21), which is fixedly installed inside the slide groove (14). The linkage component (2) also includes a push plate (22), which is located inside the slide groove (14) and is fixedly connected to the output end of the cylinder (21).
5. The stator grinding device for easy fixing according to claim 4, characterized in that, The linkage component (2) also includes a T-shaped groove (222), which is integral with the push plate (22) and slidably connected in the slide groove (14). The linkage component (2) also includes a toothed groove group (221), which is distributed at the bottom of the push plate (22).
6. The stator grinding device for easy fixing according to claim 5, characterized in that, The linkage component (2) also includes a toothed disc (23), which is in contact with the tooth groove group (221) and is meshed and connected. The middle part of the toothed disc (23) is fixedly connected to the bidirectional screw (231).
7. The stator grinding device for easy fixing according to claim 6, characterized in that, The clamping and positioning assembly (3) also includes two sets of slides (31), which are threaded to opposite threads on both sides of the bidirectional screw (231). The clamping and positioning assembly (3) also includes a U-shaped rod (32), which corresponds to the position of the rubber ring (121). One end of the U-shaped rod (32) is fixedly connected to the slide (31), and the other end of the U-shaped rod (32) is fixedly connected to the clamping seat (33).
8. The stator grinding device for easy fixing according to claim 7, characterized in that, The clamping and positioning assembly (3) also includes a reinforcing rod (321), which is located at the connection between the U-shaped rod (32) and the clamping seat (33). One end of the reinforcing rod (321) is fixedly connected to the clamping seat (33), and the other end of the reinforcing rod (321) is fixedly connected to the U-shaped rod (32).