A limiting jig for motor rotor bending arc machining
The limit adjustment structure enables flexible adjustment of iron cores of different specifications, solving the problem of insufficient applicability of existing fixtures and improving equipment utilization and production line efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI YINGGU MOTOR TECH CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-06-19
AI Technical Summary
Existing fixtures are mostly designed for single-specification iron cores, making it difficult to adapt to iron cores of different specifications. This results in the need to replace the entire set of fixtures, reducing equipment utilization and the effective production capacity of the production line.
A limit adjustment structure was designed, including a stepper motor, a bevel gear, a threaded rod, and a sliding plate. The positioning is initially positioned by the positioning column, and the sliding plate and the limit plate are precisely adjusted to achieve all-round limiting of iron cores of different specifications, adapting to iron cores of different sizes.
Different specifications of iron cores can be adapted without replacing the entire set of fixtures, which improves the applicability of fixtures and equipment utilization, and increases the effective capacity of the production line.
Smart Images
Figure CN224385290U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fixture technology, and in particular to a limiting fixture for bending an electric motor rotor. Background Technology
[0002] In the field of motor manufacturing, the rotor is one of the core components, and its processing accuracy directly affects the performance and life of the motor. The rotor core is mostly made of silicon steel sheets stacked together. The edges of the silicon steel sheets are curved. The rotor core needs to be stacked with multiple layers of curved cores to achieve specific electromagnetic properties. Therefore, a limiting fixture is needed to accurately position the core during stacking.
[0003] Existing fixtures are mostly designed for single-specification iron cores, with fixed limiting dimensions and angles, making it difficult to adapt to different specifications of iron cores. It is also inconvenient to adjust the limiting according to different specifications of iron cores. When processing iron cores of different specifications, the entire set of fixtures needs to be replaced, resulting in low equipment utilization. Switching between multiple specifications leads to a decrease in the effective production capacity of the production line. Therefore, we propose a limiting fixture for the bending of motor rotors. Utility Model Content
[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a limiting fixture for bending arc processing of motor rotors. This fixture can solve the problems that existing fixtures are mostly designed for single-specification iron cores, and their limiting dimensions and angles are fixed, making it difficult to adapt to iron cores of different specifications. It is also inconvenient to adjust the limiting according to iron cores of different specifications. When processing iron cores of different specifications, the entire fixture needs to be replaced, resulting in low equipment utilization and a decrease in the effective production capacity of the production line due to multiple specification switching.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a limiting fixture for bending an electric motor rotor, comprising:
[0006] The processing table has a rotor core bending limit platform fixedly connected to its top.
[0007] The limit adjustment structure is located on the rotor core bending arc limit platform;
[0008] The limit adjustment structure includes a stepper motor, a bevel gear, three threaded rods, three sliding plates, and three bevel gears. Three sliding grooves are provided on the top of the rotor core bending limit platform, and a transmission groove is provided on the rotor core bending limit platform. The stepper motor is fixedly installed inside the rotor core bending limit platform. The output end of the stepper motor extends rotatably into the transmission groove and is fixedly connected to the bevel gear. The three threaded rods are rotatably connected inside their respective sliding grooves. The three sliding plates are threaded onto the outer surface of their respective threaded rods and are slidably connected to the interior of their respective sliding grooves. The opposite ends of the three threaded rods extend rotatably into the transmission groove and are fixedly connected to their respective bevel gears. The three bevel gears are meshed with the bevel gears.
[0009] Preferably, the limiting adjustment structure further includes three stepper motors, three rotating shafts, three bidirectional threaded rods, three bevel gears, and three bevel gear rings. Each of the three sliding plates has a limiting groove on its top. The three bidirectional threaded rods are rotatably connected to the interior of their respective limiting grooves. The three bevel gear rings are fixedly sleeved on the outer surface of their respective bidirectional threaded rods. Each of the three stepper motors is fixedly installed on one side of its respective sliding plate. The output ends of each of the three stepper motors are fixedly connected to their respective rotating shafts. The ends of the three rotating shafts furthest from their respective stepper motors extend rotatably into the interior of their respective limiting grooves and are fixedly connected to their respective bevel gears. Each of the three bevel gears meshes with its respective bevel gear ring. Two limiting plates are threaded onto the outer surface of each of the three bidirectional threaded rods, and all six limiting plates are slidably connected to the interior of their respective limiting grooves.
[0010] Preferably, the top of the rotor core bending limit platform is provided with a threaded groove, the inside of the threaded groove is threaded with a threaded post, and the top of the threaded post is fixedly connected with a positioning post.
[0011] Preferably, an iron core is placed on top of the rotor core bending limiting platform, and the iron core is slidably sleeved on the outer surface of the positioning column.
[0012] Preferably, the three sliding plates are arranged in a circular array on the rotor core bending limit platform.
[0013] Preferably, two cabinet doors are hinged to one side of the processing table.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. This limiting fixture for bending motor rotors can be flexibly adjusted according to different specifications of iron cores through its limit adjustment structure. The iron core is initially positioned by the positioning column, and then the iron core is omnidirectionally limited by the sliding plate and the limiting plate through precise adjustment. This allows it to adapt to iron cores of different sizes without the need to replace the entire fixture, greatly improving the applicability of the fixture. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a schematic diagram of the limiting plate structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the positioning column structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the rotor core bending and limiting platform of this utility model.
[0021] Figure 5 This is a schematic diagram of the cross-sectional structure of the sliding plate of this utility model.
[0022] Reference numerals in the attached diagram: 1. Machining table; 2. Rotor core bending and limiting table; 3. Positioning column; 4. Sliding groove; 5. Limiting plate; 6. Threaded rod; 7. Stepper motor one; 8. Sliding plate; 9. Threaded column; 10. Stepper motor two; 11. Bevel gear one; 12. Bevel gear two; 13. Transmission groove; 14. Threaded groove; 15. Rotating shaft; 16. Bevel gear three; 17. Bevel ring; 18. Bidirectional threaded rod; 19. Limiting sliding groove. Detailed Implementation
[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0024] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0025] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.
[0026] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0027] Please see Figure 1-5 This utility model provides a technical solution: a limiting fixture for bending an electric motor rotor, comprising:
[0028] Processing table 1, with two door hinges on one side, and a rotor core bending limit table 2 fixedly connected to the top of processing table 1;
[0029] The limit adjustment structure is located on the rotor core bending arc limit platform 2;
[0030] The limit adjustment structure includes a stepper motor 7, a bevel gear 12, three threaded rods 6, three sliding plates 8, and three bevel gears 11. The top of the rotor core bending limit platform 2 is provided with three sliding grooves 4, and the rotor core bending limit platform 2 is provided with a transmission groove 13. The stepper motor 7 is fixedly installed inside the rotor core bending limit platform 2. The output end of the stepper motor 7 extends into the transmission groove 13 and is fixedly connected to the bevel gear 12. The three threaded rods 6 are all rotatably connected inside the corresponding sliding grooves 4. The three sliding plates 8 are all threadedly sleeved on the outer surface of the corresponding threaded rods 6. The three sliding plates 8 are all slidably connected to the inside of the corresponding sliding grooves 4. The opposite ends of the three threaded rods 6 extend into the transmission groove 13 and are fixedly connected to the corresponding bevel gears 11. The three bevel gears 11 are all meshed with the bevel gears 12.
[0031] The limit adjustment structure also includes three stepper motors 10, three rotating shafts 15, three bidirectional threaded rods 18, three bevel gears 16, and three bevel gear rings 17. Limit grooves 19 are provided on the top of each of the three sliding plates 8. The three bidirectional threaded rods 18 are rotatably connected to the interior of their respective limit grooves 19. The three bevel gear rings 17 are fixedly sleeved on the outer surface of their respective bidirectional threaded rods 18. The three stepper motors 10 are fixedly installed on one side of their respective sliding plates 8. The output ends of the three stepper motors 10 are fixedly connected to their respective rotating shafts 15. The ends of the three rotating shafts 15 away from their respective stepper motors 10 extend rotatably into the interior of their respective limit grooves 19 and are fixedly connected to their respective bevel gears 16. The three bevel gears 16 are meshed with their respective bevel gear rings 17. Two limit plates 5 are threadedly sleeved on the outer surface of each of the three bidirectional threaded rods 18. All six limit plates 5 are slidably connected to the interior of their respective limit grooves 19.
[0032] The top of the rotor core bending arc limiting platform 2 is provided with a threaded groove 14, and a threaded post 9 is connected to the inside of the threaded groove 14. A positioning post 3 is fixedly connected to the top of the threaded post 9. An iron core is placed on the top of the rotor core bending arc limiting platform 2. The iron core is slidably sleeved on the outer surface of the positioning post 3. Three sliding plates 8 are arranged in a circular array on the rotor core bending arc limiting platform 2.
[0033] Furthermore, when using this device, the iron core to be processed is placed on top of the rotor iron core bending arc limiting platform 2 and slidably sleeved on the outer surface of the positioning post 3. The positioning post 3 is threadedly connected to the threaded groove 14 opened on the top of the rotor iron core bending arc limiting platform 2 through the threaded post 9, so as to achieve the initial positioning of the iron core. Subsequently, the three "T" shaped bending arc plates on the iron core are slid between the corresponding two limiting plates 5, which facilitates the limiting of the iron core.
[0034] When adjustments are needed based on different core specifications, stepper motor 7 is started, which drives bevel gear 12 to rotate. Since all three bevel gears 11 are meshed with bevel gear 12, bevel gear 12 will drive the three bevel gears 11 to rotate synchronously, which in turn drives the three threaded rods 6 to rotate synchronously. The rotation of the three threaded rods 6 will drive the three sliding plates 8 to slide synchronously under the guidance of the corresponding sliding grooves 4. The three sliding plates 8 are arranged in a circular array on the rotor core bending arc limiting platform 2, thereby realizing the radial limiting adjustment of the core to adapt to cores of different sizes.
[0035] Start stepper motor 2 10, which drives the rotating shaft 15 to rotate, and in turn drives the bevel gear 3 16 to rotate. Since the bevel gear 3 16 is meshed with the bevel gear ring 17, the bevel gear 3 16 will drive the bevel gear ring 17 to rotate, thereby driving the bidirectional threaded rod 18 to rotate. The rotation of the bidirectional threaded rod 18 will drive the two limit plates 5 to move in opposite directions under the guidance inside the corresponding limit slide groove 19, so as to meet the processing requirements of different iron cores.
[0036] The limit adjustment structure allows for flexible adjustment based on different specifications of iron cores. The iron core is initially positioned by the positioning column 3, and then precisely adjusted by the sliding plate 8 and the limit plate 5 to achieve all-round limit on the iron core, thus adapting to iron cores of different sizes without the need to replace the entire fixture, greatly improving the applicability of the fixture.
[0037] Structural Description: Machining Table 1: Provides a stable mounting base for the entire limit fixture, ensuring the stability of the fixture during the machining process;
[0038] Rotor core bending limit platform 2: Fixed on the top of processing table 1, it provides a platform for placing the core and supports related operations during the core processing.
[0039] Sliding groove 4: It is opened on the top of the rotor core bending arc limiting platform 2 to provide sliding space for sliding plate 8 and guide sliding plate 8 to move radially;
[0040] Limiting plate 5: It is threaded onto the outer surface of the bidirectional threaded rod 18 and slidably connected to the limiting slide groove 19. By moving, it limits the "T"-shaped curved plate on the iron core to ensure the stability of the iron core during the processing.
[0041] Threaded rod 6: Rotatably connected inside the corresponding sliding groove 4, threadedly connected to the sliding plate 8, and drives the sliding plate 8 to move radially by rotation;
[0042] Stepper motor 7: It is fixedly installed inside the rotor core bending limit platform 2, serving as the power source for radial limit adjustment and driving bevel gear 12 to rotate.
[0043] Sliding plate 8: It is threaded onto the outer surface of the corresponding threaded rod 6 and slidably connected to the inside of the corresponding sliding groove 4. It achieves radial positioning of the iron core through sliding and is arranged in a circular array on the rotor iron core bending arc limiting platform 2.
[0044] Threaded post 9: Threaded connection inside the threaded groove 14, with the top end fixedly connected to the positioning post 3, facilitating the installation and removal of the positioning post 3;
[0045] Stepper motor 2 10: It is fixedly installed on one side of the corresponding sliding plate 8 and serves as the power source for axial limit adjustment, driving the rotating shaft 15 to rotate;
[0046] Bevel gear 11: meshes with bevel gear 212 and is fixedly connected to the opposite end of the threaded rod 6. The rotation of bevel gear 212 drives the threaded rod 6 to rotate.
[0047] Bevel gear 12: It is fixedly connected to the output end of stepper motor 7. Through the drive of stepper motor 7, it drives the three bevel gears 11 to rotate synchronously.
[0048] Transmission slot 13: It is opened on the rotor core bending arc limiting platform 2 to provide space for the transmission of bevel gear 2 12 and bevel gear 11;
[0049] Threaded groove 14: It is opened on the top of the rotor core bending arc limiting platform 2 and is threadedly connected to the threaded post 9 to realize the installation of the positioning post 3;
[0050] Rotating shaft 15: One end is fixedly connected to the output end of stepper motor 2 10, and the other end extends into the corresponding limiting slide groove 19 and is fixedly connected to the corresponding bevel gear 3 16, so as to transmit the power of stepper motor 2 10 to bevel gear 3 16.
[0051] Bevel gear 3 16: It is fixedly connected to the end of the rotating shaft 15 away from the stepper motor 2 10, and meshes with the bevel gear ring 17. The rotation of the rotating shaft 15 drives the bevel gear ring 17 to rotate.
[0052] Bevel ring 17: It is fixedly sleeved on the outer surface of the corresponding bidirectional threaded rod 18 and meshes with bevel gear 16. The rotation of bevel gear 16 drives the bidirectional threaded rod 18 to rotate.
[0053] The bidirectional threaded rod 18 is rotatably connected inside the corresponding limiting groove 19 and threadedly connected to the two limiting plates 5. By rotating, it drives the two limiting plates 5 to move in opposite directions.
[0054] Limiting groove 19: It is formed on the top of the three sliding plates 8 to provide installation and sliding space for the bidirectional threaded rod 18 and the limiting plate 5, and to guide the limiting plate 5 to move axially;
[0055] Positioning pin 3: It is threadedly connected to the threaded groove 14 opened on the top of the rotor core bending limit platform 2 through the threaded pin 9, and the iron core slides on its outer surface to achieve the initial positioning of the iron core.
[0056] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A limiting fixture for bending an electric motor rotor, characterized in that, include: A processing table (1) is fixedly connected to the top of the processing table (1) with a rotor core bending limit table (2); Limit adjustment structure, the limit adjustment structure is located on the rotor core bending arc limit platform (2); The limit adjustment structure includes a stepper motor (7), a bevel gear (12), three threaded rods (6), three sliding plates (8) and three bevel gears (11). The top of the rotor core bending limit platform (2) is provided with three sliding grooves (4). The rotor core bending limit platform (2) is provided with a transmission groove (13). The stepper motor (7) is fixedly installed inside the rotor core bending limit platform (2). The output end of the stepper motor (7) rotates and extends into the transmission groove (13) and is fixedly connected to the bevel gear (12). Among them, the three threaded rods (6) are rotatably connected inside the corresponding sliding groove (4), the three sliding plates (8) are threadedly sleeved on the outer surface of the corresponding threaded rods (6), the three sliding plates (8) are slidably connected to the inside of the corresponding sliding groove (4), the opposite ends of the three threaded rods (6) are rotatably extended into the inside of the transmission groove (13) and fixedly connected to the corresponding bevel gear one (11), and the three bevel gear one (11) are meshed with bevel gear two (12).
2. The limiting jig for bending of the motor rotor according to claim 1, characterized in that: The limit adjustment structure also includes three stepper motors (10), three rotating shafts (15), three bidirectional threaded rods (18), three bevel gears (16) and three bevel rings (17). The top of each of the three sliding plates (8) is provided with a limit groove (19). The three bidirectional threaded rods (18) are rotatably connected to the inside of the corresponding limit groove (19). The three bevel rings (17) are fixedly sleeved on the outer surface of the corresponding bidirectional threaded rod (18). Among them, three stepper motors (10) are fixedly installed on one side of the corresponding sliding plate (8), the output ends of the three stepper motors (10) are fixedly connected to the corresponding rotating shaft (15), the ends of the three rotating shafts (15) away from the corresponding stepper motors (10) are rotatably extended into the interior of the corresponding limiting slide groove (19) and fixedly connected to the corresponding bevel gear (16), and the three bevel gears (16) are meshed with the corresponding bevel gear ring (17); Among them, two limiting plates (5) are threaded onto the outer surface of each of the three bidirectional threaded rods (18), and all six limiting plates (5) are slidably connected to the interior of the corresponding limiting groove (19).
3. The limiting jig for bending of the motor rotor according to claim 1, characterized in that: The top of the rotor core bending limit platform (2) is provided with a threaded groove (14), and the threaded groove (14) is internally threaded with a threaded column (9), and the top of the threaded column (9) is fixedly connected with a positioning column (3).
4. The limiting jig for bending an arc of a motor rotor according to claim 3, characterized in that: The rotor core bending limit platform (2) has an iron core placed on top, and the iron core is slidably sleeved on the outer surface of the positioning column (3).
5. The limiting jig for bending of the motor rotor according to claim 1, characterized in that: The three sliding plates (8) are arranged in a circular array on the rotor core bending limit platform (2).
6. The limiting jig for bending of the motor rotor according to claim 1, characterized in that: Two cabinet doors are hinged to one side of the processing table (1).