Motor stator shaping tool
By designing an upper and lower forming die combined with a positioning boss, a fixing sleeve, a sliding plate, and grippers, the problems of stator surface damage and springback during motor stator forming were solved, achieving high-precision stator forming and improving the overall quality of the motor.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-03-03
AI Technical Summary
Existing motor stator forming fixtures are prone to damaging the stator surface during the forming process, and the springback phenomenon of the stator after forming results in insufficient shape accuracy, affecting the quality of the motor.
The design employs an upper and lower forming mold, combined with a positioning boss, a fixing sleeve, a sliding plate, a drive seat, and grippers. The expansion and contraction of the grippers achieve the forming and fixing of the stator coil, ensuring that the stator surface is not damaged and improving the forming accuracy.
It effectively avoids damage to the stator surface, improves shaping accuracy, reduces springback, and enhances the overall quality of the motor.
Smart Images
Figure CN223967784U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stator shaping technology, specifically a motor stator shaping fixture. Background Technology
[0002] In the motor manufacturing process, multiple silicon steel sheets are combined into a stator body, and then multiple wound stator coils are inserted into the stator body in a regular manner. After winding, the stator body needs to be shaped to press the multiple silicon steel sheets tightly together.
[0003] In the current application of motor stator shaping fixtures, when shaping the stator coil of a motor, the stator surface is easily damaged. This damage may affect the performance and lifespan of the motor. In addition, after the stator shaping work is completed, when the mold needs to be removed, the stator and stator coil will spring back. This springback phenomenon may cause the shape of the stator to fail to maintain the expected accuracy, thereby affecting the overall quality of the motor.
[0004] Therefore, this utility model provides a motor stator shaping fixture to solve the above problems. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] This utility model provides a motor stator shaping fixture, which aims to solve the problems mentioned in the background art.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: It includes an upper shaping mold and a lower shaping mold, which are arranged opposite each other. An upper positioning boss is provided on the lower side of the upper shaping mold, and a lower positioning boss is provided on the upper side of the lower shaping mold. The upper and lower positioning bosses are arranged opposite each other and are in contact with each other. A fixing sleeve is fixedly installed on both the upper and lower shaping molds. Both sets of fixing sleeves are connected to an external fixing frame. A sliding plate is slidably installed inside each fixing sleeve. A wire hole is opened in each of the upper and lower shaping molds. A shaping groove is opened in both the upper and lower shaping molds. The wire hole is connected to the shaping groove on the upper shaping mold. A stator core is installed in each of the two sets of lower positioning bosses. A shaping component for shaping the stator coil is provided inside the fixing sleeve.
[0009] As a preferred technical solution of this application, the shaping component includes multiple sets of connecting rods, which are fixedly installed on two sets of sliding plates. Two sets of drive seats are fixedly installed on the multiple sets of connecting rods, and the two sets of drive seats are respectively fitted with two sets of fixed sleeves. Multiple sets of springs are installed inside the two sets of fixed sleeves, and the multiple sets of springs are located between the two sets of sliding plates and the two sets of fixed sleeves. Fixed plates are fixedly installed on opposite sides of the two sets of sliding plates. Multiple sets of first grippers are rotatably installed on the outer walls of the two sets of fixed plates. The multiple sets of first grippers are inserted into the connection between the upper shaping mold and the lower shaping mold and the two sets of fixed sleeves.
[0010] As a preferred technical solution of this application, the shaping component further includes two sets of fixing rods, which are fixedly installed in two sets of fixing sleeves. The opposite ends of the two sets of fixing rods are movably inserted into the two sets of sliding plates. Multiple sets of second grippers are rotatably installed in both sets of fixing plates. Fixing blocks are fixedly installed on both sets of fixing rods. The opposite ends of the two sets of fixing rods and the two sets of fixing blocks are respectively located in multiple sets of first grippers installed on the two sets of fixing plates.
[0011] As a preferred technical solution of this application, the multiple sets of first grippers on the outer walls of the two sets of fixed disks are all arranged in a trumpet shape, and the multiple sets of second grippers installed on the inner walls of the two sets of fixed disks are all in a retracted shape, with the multiple sets of second grippers located between the multiple sets of first grippers.
[0012] As a preferred technical solution of this application, the opposing surfaces of the multiple sets of first jaws and multiple sets of second jaws are stepped, and the opposing surfaces of the multiple sets of first jaws and multiple sets of second jaws are respectively adapted to the outer and inner walls of the stator core.
[0013] As a preferred technical solution of this application, protective pads are glued to the opposite side surfaces of the multiple sets of first grippers and multiple sets of second grippers.
[0014] (III) Beneficial Effects
[0015] The stator core is fixed between the upper and lower positioning bosses, and the stator coil set on the stator core is placed in the shaping groove. The external drive device synchronously pulls two sets of drive seats, which drive two sets of sliding plates, two sets of fixed plates, multiple sets of first grippers, and multiple sets of second grippers to slide in opposite directions. The multiple sets of first grippers expand and contract through two sets of fixed rods, two sets of fixed blocks, and multiple sets of second grippers, thereby achieving the shaping and fixing of the stator coil set in the stator core. This effectively solves the problem that traditional motor stator shaping fixtures are prone to damaging the stator surface. Through a specific structure and fit, the shaping accuracy and efficiency are improved, and the springback phenomenon after shaping is reduced, thereby improving the overall quality of the motor. Attached Figure Description
[0016] Figure 1This is a schematic diagram of a motor stator shaping fixture.
[0017] Figure 2 This is a front view of the exploded structure of a motor stator shaping fixture;
[0018] Figure 3 This is a front view cross-sectional diagram of the upper forming die and the fixing sleeve in a motor stator forming fixture;
[0019] Figure 4 This is a front view cross-sectional diagram of the upper forming mold and the fixed plate in a motor stator forming fixture.
[0020] In the picture:
[0021] 1. Upper forming mold; 2. Lower forming mold; 3. Upper positioning boss; 4. Lower positioning boss; 5. Fixing sleeve; 6. Slide plate; 7. Connecting rod; 8. Drive seat; 9. Wire hole; 10. Forming groove; 11. Spring; 12. Fixing plate; 13. First gripper; 14. Fixing rod; 15. Second gripper; 16. Fixing block; 17. Stator core. Detailed Implementation
[0022] 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.
[0023] This utility model provides a motor stator shaping fixture, such as... Figure 1-4 As shown, the motor stator forming fixture includes an upper forming mold 1 and a lower forming mold 2, which are arranged opposite each other. An upper positioning boss 3 is provided on the lower side of the upper forming mold 1, and a lower positioning boss 4 is provided on the upper side of the lower forming mold 2. The upper positioning boss 3 and the lower positioning boss 4 are arranged opposite each other and fit together. Fixing sleeves 5 are fixedly installed on both the upper forming mold 1 and the lower forming mold 2. The two sets of fixing sleeves 5 are connected to an external fixing frame. A sliding plate 6 is slidably installed inside the fixing sleeve 5. A wire hole 9 is opened in both the upper forming mold 1 and the lower forming mold 2. A forming groove 10 is opened in both the upper forming mold 1 and the lower forming mold 2. The wire hole 9 is connected to the forming groove 10 on the upper forming mold 1. A stator core 17 is installed in the two sets of lower positioning bosses 4. A shaping component for shaping the stator coil is provided in the fixing sleeve 5.
[0024] In use, the stator core 17 is first fixed between the upper positioning boss 3 and the lower positioning boss 4, and the stator coil set on the stator core 17 is placed in the shaping groove 10 between the upper shaping mold 1 and the lower shaping mold 2. The wire end of the stator coil passes through the wire hole 9, and the stator core 17 and the stator coil are squeezed by the shaping component, thereby shaping and shaping the stator core 17 and the stator coil.
[0025] The shaping assembly includes multiple sets of connecting rods 7, which are fixedly installed on two sets of sliding plates 6. Two sets of drive seats 8 are fixedly installed on the multiple sets of connecting rods 7. The two sets of drive seats 8 are respectively attached to two sets of fixed sleeves 5. Multiple sets of springs 11 are installed inside the two sets of fixed sleeves 5. The multiple sets of springs 11 are located between the two sets of sliding plates 6 and the two sets of fixed sleeves 5. Fixed plates 12 are fixedly installed on opposite sides of the two sets of sliding plates 6. Multiple sets of first grippers 13 are rotatably installed on the outer walls of the two sets of fixed plates 12. The multiple sets of first grippers 13 are inserted at the connection between the upper shaping mold 1 and the lower shaping mold 2 and the two sets of fixed sleeves 5.
[0026] During the shaping process, the two sets of sliding plates 6 and the two sets of drive seats 8 slide to drive multiple sets of first grippers 13 to slide and contract at the connection between the upper shaping mold 1 and the lower shaping mold 2 and the fixed sleeve 5, thereby clamping and shaping the outer wall of the stator core 17 and the end of the stator coil located in the two sets of shaping grooves 10, so as to prevent the stator coil from exceeding the outer wall of the stator core 17.
[0027] The shaping assembly also includes two sets of fixing rods 14, which are fixedly installed in two sets of fixing sleeves 5. The opposite ends of the two sets of fixing rods 14 are movably inserted into two sets of sliding plates 6. Multiple sets of second grippers 15 are rotatably installed in both sets of fixing discs 12. Fixing blocks 16 are fixedly installed on both sets of fixing rods 14. The opposite ends of the two sets of fixing rods 14 and the two sets of fixing blocks 16 are respectively located in multiple sets of first grippers 13 installed on the two sets of fixing discs 12.
[0028] While the two sets of sliding plates 6, the two sets of fixed plates 12, and the multiple sets of second clamps 15 slide, the multiple sets of second clamps 15 expand and open during the sliding process through the fixed rods 14 and fixed blocks 16 in the two sets of fixed sleeves 5, so as to fit against the inner wall of the stator core 17, thereby completing the clamping of the inner wall of the stator core 17 and the stator coil, and then fixing the stator coil to the wire groove on the inner wall of the stator core 17.
[0029] The multiple sets of first grippers 13 on the outer walls of the two sets of fixed disks 12 are all arranged in a trumpet shape, and the multiple sets of second grippers 15 installed on the inner walls of the two sets of fixed disks 12 are all in a retractable shape, with the multiple sets of second grippers 15 located between the multiple sets of first grippers 13.
[0030] The design of multiple sets of first grippers 13 in a trumpet shape allows them to better fit the outer wall of the stator core 17 during sliding and retracting, increasing the stability of the clamping. Meanwhile, the design of multiple sets of second grippers 15 in a retractable shape allows them to gradually expand during sliding and unfolding, better fitting the inner wall of the stator core 17 and ensuring that the stator coil is firmly fixed in the wire groove on the inner wall of the stator core 17.
[0031] The opposing surfaces of the multiple sets of first jaws 13 and multiple sets of second jaws 15 are stepped, and the opposing surfaces of the multiple sets of first jaws 13 and multiple sets of second jaws 15 are respectively adapted to the outer and inner walls of the stator core 17.
[0032] The stepped design allows the multiple sets of first jaws 13 and multiple sets of second jaws 15 to distribute pressure more evenly when clamping the stator core 17, avoiding excessive local pressure that could damage the stator core 17 or the stator coil. This helps improve clamping accuracy and ensures that the stator coil is accurately fixed in the predetermined position.
[0033] Protective pads are glued to the opposite surfaces of the multiple sets of first grippers 13 and multiple sets of second grippers 15.
[0034] The protective pads also protect the outer and inner walls of the stator core 17, preventing damage to the stator core 17 during the clamping process caused by multiple sets of first jaws 13 and multiple sets of second jaws 15. The entire shaping process is simple to operate.
[0035] Working principle: When using this motor stator shaping fixture, firstly, the stator coil to be shaped is installed onto the stator core 17 in the fixture, and the stator core 17 is fixed in the upper positioning boss 3 and the lower positioning boss 4. The stator coils at the upper and lower ends of the stator core 17 are located in the shaping grooves 10 of the upper shaping mold 1 and the lower shaping mold 2. The wire ends of the stator coils pass through the wire holes 9. Subsequently, the two sets of drive seats 8 are pulled by the external drive device. The two sets of drive seats 8 drive the two sets of slide plates 6 to move synchronously through multiple sets of connecting rods 7. The movement of the slide plates 6 further drives the multiple sets of first grippers 13 and multiple sets of second grippers 15 on the fixed plate 12 to move synchronously. During the sliding process, the multiple sets of first grippers 13, due to their trumpet-shaped design, gradually contract and fit against the outer wall of the stator core 17 and the parts of the stator coil at the upper and lower ends of the stator core 17. At the same time, the multiple sets of second grippers 15 slide... During the process, because the two sets of fixing rods 14 and the two sets of fixing blocks 16 are inside the multiple sets of second clamps 15 and remain stationary, the multiple sets of second clamps 15 slide and gradually unfold and fit against the inner wall of the stator core 17, thus clamping the inner wall of the stator core 17 and the other end of the stator coil, thereby firmly fixing the stator coil in the wire groove on the inner wall of the stator core 17. The multiple sets of first clamps 13 and the multiple sets of second clamps 15 clamp and shape the stator core 17 and the stator coil. After the shaping is completed, the two sets of drive seats 8 are moved in the opposite direction by the external drive device, which can drive the multiple sets of first clamps 13 and the multiple sets of second clamps 15 to reset. And the upper shaping mold 1, lower shaping mold 2, upper positioning boss 3, lower positioning boss 4, two sets of fixing sleeves 5 and two sets of drive seats 8 are moved and unfolded in opposite directions by the external fixing frame, so that the stator core 17 of the upper positioning boss 3 and lower positioning boss 4 can be taken out.
[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A motor stator shaping tool, comprising an upper shaping die (1) and a lower shaping die (2), characterized in that: the lower side of the upper shaping die (1) is provided with an upper positioning boss (3), the upper side of the lower shaping die (2) is provided with a lower positioning boss (4), the upper positioning boss (3) and the lower positioning boss (4) are oppositely arranged, the upper positioning boss (3) and the lower positioning boss (4) are in close contact, the upper shaping die (1) and the lower shaping die (2) are both fixedly installed with a fixed sleeve (5), two groups of the fixed sleeve (5) are connected with an external fixed frame, the fixed sleeve (5) is slidably installed with a sliding plate (6), the upper shaping die (1) is provided with a wire hole (9), the upper shaping die (1) and the lower shaping die (2) are both provided with a shaping groove (10), the wire hole (9) is connected with the shaping groove (10) on the upper shaping die (1), two groups of the lower positioning boss (4) are installed with a stator core (17), and the fixed sleeve (5) is provided with a shaping assembly for stator coil shaping. The shaping assembly comprises a plurality of connecting rods (7), the plurality of connecting rods (7) are fixedly installed on two groups of the sliding plate (6), two groups of driving seats (8) are fixedly installed on the plurality of connecting rods (7), the two groups of driving seats (8) are in close contact with the two groups of fixed sleeves (5), a plurality of springs (11) are installed in the two groups of fixed sleeves (5), the plurality of springs (11) are between the two groups of sliding plates (6) and the two groups of fixed sleeves (5), a fixed disc (12) is fixedly installed on the opposite side of each of the two groups of sliding plates (6), a plurality of first clamping jaws (13) are rotatably installed on the outer wall of each of the two groups of fixed discs (12), and the plurality of first clamping jaws (13) are inserted at the connection between the upper shaping die (1), the lower shaping die (2) and the two groups of fixed sleeves (5).
2. A stator shaping tool for an electrical machine according to claim 1, characterized in that: The shaping assembly further comprises two groups of fixed rods (14), the two groups of fixed rods (14) are fixedly installed in the two groups of fixed sleeves (5), the opposite ends of the two groups of fixed rods (14) are movably inserted in the two groups of sliding plates (6), a plurality of second clamping jaws (15) are rotatably installed in the two groups of fixed discs (12), a fixed block (16) is fixedly installed on each of the two groups of fixed rods (14), and the opposite ends of the two groups of fixed rods (14) and the two groups of fixed blocks (16) are respectively in the plurality of first clamping jaws (13) installed on the two groups of fixed discs (12).
3. A stator shaping tool for an electrical machine according to claim 2, characterized in that: The plurality of first clamping jaws (13) on the outer wall of each of the two groups of fixed discs (12) are arranged in a horn shape, the plurality of second clamping jaws (15) installed on the inner wall of each of the two groups of fixed discs (12) are arranged in a contraction shape, and the plurality of second clamping jaws (15) are between the plurality of first clamping jaws (13).
4. A stator shaping tool for an electrical machine according to claim 3, characterized in that: The opposite side surfaces of the plurality of first clamping jaws (13) and the plurality of second clamping jaws (15) are both arranged in a stepped shape, and the opposite side surfaces of the plurality of first clamping jaws (13) and the plurality of second clamping jaws (15) are respectively matched with the outer and inner walls of the stator core (17).
5. A stator shaping tool for an electrical machine according to claim 3, characterized in that: 6. A stator shaping tool for an electrical machine according to claim 3, characterized in that: The opposite side surfaces of the plurality of sets of first clamping jaws (13) and the plurality of sets of second clamping jaws (15) are each glued with a protective pad.