Brushless rotor core positioning tool

Abstract

The utility model discloses a brushless rotor core positioning tool which comprises a bottom plate, the upper end of the bottom plate is fixedly connected with a heightening plate, the upper end of the heightening plate is fixedly connected with a bearing plate, the upper surface of the bearing plate is provided with a clamping assembly, and the bearing plate is clamped with a rotor workpiece through the clamping assembly. Firstly, it is guaranteed that the tool is stable, all parts are firmly connected and rotate flexibly, a to-be-machined rotor iron core is roughly aligned with the center of a fixing rod and placed on a bearing plate, then an adjusting rod is rotated to drive a bidirectional threaded rod to rotate, a first sliding block and a second sliding block synchronously and reversely move, a main butt-joint inclined plate is pushed to drive a butt-joint piece to get close to and clamp a rotor workpiece, and the rotor iron core is machined. The number of rotation turns is controlled through scales of the adjusting rod to adapt to iron cores of different specifications, and high-precision positioning is achieved; machining operation is carried out after positioning and clamping are completed, and it is guaranteed that the iron core is stable and air gaps are uniform during machining; when the model of the iron core is replaced, the adjusting rod is reversely rotated to loosen and clamp, and the positioning and clamping steps are repeated after rapid replacement.

Description

Technical Field

[0001] This utility model relates to the field of rotor core positioning technology, specifically a brushless rotor core positioning fixture. Background Technology

[0002] In the past, the positioning of the brushless rotor core relied on manual operation by workers. The operation process was cumbersome and time-consuming, which could not meet the needs of large-scale production and resulted in low production efficiency.

[0003] Manual operation is affected by factors such as the worker's skill level, experience, and working condition, resulting in unstable positioning accuracy. This can affect the motor's air gap uniformity, torque fluctuation, and other performance indicators, reducing the overall quality and reliability of the motor.

[0004] Existing positioning fixtures are often designed for specific models or sizes of brushless rotor cores. When different specifications of rotor cores need to be produced, the entire fixture needs to be replaced, which increases production costs and preparation time.

[0005] Therefore, those skilled in the art have provided a brushless rotor core positioning fixture to solve the problems mentioned in the background art. Utility Model Content

[0006] The purpose of this invention is to provide a brushless rotor core positioning fixture to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A brushless rotor core positioning fixture includes a base plate, an extension plate fixedly connected to the upper end of the base plate, a receiving plate fixedly connected to the upper end of the extension plate, a snap-fit ​​assembly provided on the upper surface of the receiving plate, and a rotor workpiece snapped onto the receiving plate by the snap-fit ​​assembly.

[0009] Furthermore, the snap-fit ​​assembly includes a fixed rod, a circular groove, a sliding groove, and a square groove. The fixed rod is fixedly connected to the upper surface of the receiving plate. The upper end of the fixed rod has a circular groove, the inside of the fixed rod has a square groove, and the surface of the fixed rod has a sliding groove. Both the sliding groove and the circular groove are connected to the square groove.

[0010] Furthermore, the snap-fit ​​assembly also includes a bearing, an adjusting rod, and a bidirectional threaded rod. The adjusting rod is rotatably connected to the fixing rod through a circular groove. The lower end of the adjusting rod is fixedly connected to the bidirectional threaded rod, and the bearing is fixedly connected inside the fixing rod.

[0011] Furthermore, the bearing is placed on the bottom wall of the square groove, the bidirectional threaded rod is placed inside the square groove, and the lower end of the bidirectional threaded rod is rotatably connected to the bearing.

[0012] Furthermore, the snap-fit ​​assembly also includes a threaded groove, a lower mating inclined plate, a first sliding block, a second sliding block, and an upper mating inclined plate. The first sliding block and the second sliding block are slidably connected inside the fixed rod. The lower mating inclined plate is fixedly connected to the upper end of the first sliding block, and the upper mating inclined plate is fixedly connected to the lower end of the second sliding block. Threaded grooves are provided on the lower mating inclined plate, the upper mating inclined plate, the first sliding block, and the second sliding block.

[0013] Furthermore, the lower mating inclined plate, the upper mating inclined plate, the first sliding block, and the second sliding block are connected to the threaded rod through threaded grooves.

[0014] Furthermore, the snap-fit ​​assembly also includes an abutment piece, a connecting block, and a main mating ramp. The fixing rod is slidably connected to the connecting block via a sliding groove. One end of the connecting block is fixedly connected to the main mating ramp, and the other end of the connecting block is fixedly connected to the abutment piece.

[0015] Furthermore, the main docking inclined plate is placed between the lower docking inclined plate and the upper docking inclined plate, and the surface of the abutment plate abuts against the rotor workpiece.

[0016] By adopting the above technical solution

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. The inclined surfaces of the main docking inclined plate and the lower docking inclined plate cooperate to achieve high-precision positioning, which can effectively reduce the generation of errors. The bidirectional threaded rod synchronously drives the first and second sliding blocks to ensure uniform distribution of clamping force and ensure uniformity of motor air gap.

[0019] 2. By adjusting the number of rotations of the bidirectional threaded rod, it can be adapted to rotor cores of different specifications without changing tooling, which effectively reduces the cost of mold replacement. In addition, the main docking inclined plate and the abutment plate adopt a quick-change structure, which supports the rapid switching of different core models and effectively shortens the production time.

[0020] 3. Furthermore, the structure of this equipment is simple, which reduces the difficulty of production and increases the ease of operation. Attached Figure Description

[0021] Figure 1 A schematic diagram of the overall structure of a brushless rotor core positioning fixture;

[0022] Figure 2 A front view cross-sectional structural diagram of a brushless rotor core positioning fixture;

[0023] Figure 3 A top view schematic diagram of a brushless rotor core positioning fixture;

[0024] Figure 4A schematic diagram of the overall structure of the sliding block in a positioning fixture for a brushless rotor core;

[0025] Figure 5 In this utility model Figure 2 A magnified view of the structure at point A;

[0026] In the diagram: 1. Base plate; 2. Heightening plate; 3. Rotor workpiece; 4. Fixing rod; 5. Support plate; 6. Bearing; 7. Adjusting rod; 8. Circular groove; 9. Bidirectional threaded rod; 10. Abutment piece; 11. Connecting block; 12. Main docking inclined plate; 13. Lower docking inclined plate; 14. First sliding block; 15. Threaded groove; 16. Sliding groove; 17. Square groove; 18. Second sliding block; 19. Upper docking inclined plate. Detailed Implementation

[0027] To make the technical means, creative features, achieved objectives and effects of this utility model easier to understand, the present utility model is further described below in conjunction with specific embodiments. In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0028] Please see Figures 1-5 This utility model provides an embodiment of a brushless rotor core positioning fixture, including a base plate 1. An extension plate 2 is fixedly connected to the upper end of the base plate 1, and a support plate 5 is fixedly connected to the upper end of the extension plate 2. A snap-fit ​​assembly is provided on the upper surface of the support plate 5. The rotor workpiece 3 is snapped onto the support plate 5 through the snap-fit ​​assembly. A steel plate is selected as the base plate 1, which can cooperate with external devices during actual operation. The support plate 5 is fixed to the upper end of the extension plate 2 by welding, which can effectively support the inner ring of the iron core and ensure its fixation.

[0029] In this embodiment, the snap-fit ​​assembly includes a fixed rod 4, a circular groove 8, a sliding groove 16, and a square groove 17. The fixed rod 4 is fixedly connected to the upper surface of the receiving plate 5. The upper end of the fixed rod 4 has a circular groove 8, the inside of the fixed rod 4 has a square groove 17, and the surface of the fixed rod 4 has a sliding groove 16. The sliding groove 16 and the circular groove 8 are interconnected with the square groove 17. The internal parts can be matched by opening different grooves.

[0030] In this embodiment, the snap-fit ​​assembly further includes a bearing 6, an adjusting rod 7, and a bidirectional threaded rod 9. The adjusting rod 7 is rotatably connected to the fixing rod 4 via a circular groove 8. The lower end of the adjusting rod 7 is fixedly connected to the bidirectional threaded rod 9. The bearing 6 is fixedly connected inside the fixing rod 4. The bearing 6 is placed on the bottom wall of the square groove 17. The bidirectional threaded rod 9 is placed inside the square groove 17, and the lower end of the bidirectional threaded rod 9 is rotatably connected to the bearing 6. The bearing 6 can assist the bidirectional threaded rod 9 in rotating, thereby ensuring that the abutment plate expands outward when the adjusting rod 7 is rotated.

[0031] In this embodiment, the snap-fit ​​assembly further includes a threaded groove 15, a lower mating inclined plate 13, a first sliding block 14, a second sliding block 18, and an upper mating inclined plate 19. The first sliding block 14 and the second sliding block 18 are slidably connected within the fixed rod 4. The upper end of the first sliding block 14 is fixedly connected to the lower mating inclined plate 13, and the lower end of the second sliding block 18 is fixedly connected to the upper mating inclined plate 19. Threaded grooves 15 are provided on the lower mating inclined plate 13, the upper mating inclined plate 19, the first sliding block 14, and the second sliding block 18. The lower mating inclined plate 13, the upper mating inclined plate 19, the first sliding block 14, and the second sliding block 18 are connected to the threaded rod through the threaded grooves 15. The brushless rotor core to be positioned is placed on the receiving plate 5, roughly aligning the center of the rotor workpiece 3 with the center of the fixed rod 4. The adjusting rod 7 is rotated, and the adjusting rod 7 drives the bidirectional threaded rod 9 fixedly connected to it to rotate under the support of the bearing 6. Due to the bidirectional thread design of the bidirectional threaded rod 9, the first sliding block 14 and the second sliding block 18 will move synchronously in opposite directions within the square groove 17.

[0032] In this embodiment, the snap-fit ​​assembly further includes an abutment piece 10, a connecting block 11, and a main docking ramp 12. The fixing rod 4 is slidably connected to the connecting block 11 via the sliding groove 16. One end of the connecting block 11 is fixedly connected to the main docking ramp 12, and the other end of the connecting block 11 is fixedly connected to the abutment piece 10. The main docking ramp 12 is positioned between the lower docking ramp 13 and the upper docking ramp 19. The surface of the abutment piece 10 abuts against the rotor workpiece 3. As the first sliding block 14 and the second sliding block 18 move, the lower docking ramp 13 on the first sliding block 14 and the upper docking ramp 19 on the second sliding block 18 push the main docking ramp 12 located between them. Under the guidance of the sliding groove 16, the main docking ramp 12 drives the connecting block 11 and the abutment piece 10 to move toward the rotor workpiece 3. With continuous rotation of the adjusting rod 7, the abutment piece 10 gradually approaches and tightly abuts against the rotor workpiece 3, thereby achieving the positioning and clamping of the rotor workpiece 3.

[0033] When this brushless rotor core positioning fixture is in operation, first ensure that the fixture is stable and that all components are firmly connected and rotate flexibly. Place the rotor core to be processed roughly aligned with the center of the fixing rod 4 on the receiving plate 5. Then, rotate the adjusting rod 7 to drive the bidirectional threaded rod 9 to rotate, so that the first and second sliding blocks 18 move in opposite directions synchronously, pushing the main docking inclined plate 12 to drive the abutment plate 10 to approach and clamp the rotor workpiece 3. The number of rotations is controlled by the scale of the adjusting rod 7 to adapt to different specifications of iron cores, so as to achieve high-precision positioning. After the positioning and clamping are completed, the processing operation is carried out to ensure that the iron core is stable and the air gap is uniform during processing. When changing the iron core model, rotate the adjusting rod 7 in the opposite direction to loosen the clamping. After quick replacement, repeat the positioning and clamping steps.

[0034] The inclined surfaces of the main docking inclined plate 12 and the lower docking inclined plate 13 cooperate to achieve a high-precision positioning effect, which can effectively reduce the generation of errors. The bidirectional threaded rod 9 synchronously drives the first and second sliding blocks 18 to ensure uniform distribution of clamping force and ensure uniformity of motor air gap. By adjusting the number of rotations of the bidirectional threaded rod 9, it can be adapted to rotor cores of different specifications without changing tooling, which effectively reduces the cost of mold replacement. In addition, the main docking inclined plate 12 and the abutment plate 10 adopt a quick-change structure, which supports the rapid switching of different core models, effectively shortening the production time. Moreover, the structure of this equipment is simple, which can reduce the production difficulty and improve the ease of operation.

[0035] This specification describes embodiments, but not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A brushless rotor core positioning fixture, comprising a base plate (1), characterized in that, The base plate (1) is fixedly connected to the upper end of the heightening plate (2), and the upper end of the heightening plate (2) is fixedly connected to the support plate (5). The upper surface of the support plate (5) is provided with a snap-fit ​​component, and the support plate (5) snaps the rotor workpiece (3) with the snap-fit ​​component.

2. The brushless rotor core positioning fixture according to claim 1, characterized in that, The snap-fit ​​assembly includes a fixed rod (4), a circular groove (8), a sliding groove (16), and a square groove (17). The fixed rod (4) is fixedly connected to the upper surface of the receiving plate (5). The upper end of the fixed rod (4) has a circular groove (8), the inside of the fixed rod (4) has a square groove (17), and the surface of the fixed rod (4) has a sliding groove (16). The sliding groove (16) and the circular groove (8) are both connected to the square groove (17).

3. The brushless rotor core positioning fixture according to claim 2, characterized in that, The snap-fit ​​assembly also includes a bearing (6), an adjusting rod (7) and a bidirectional threaded rod (9). The fixing rod (4) is rotatably connected to the adjusting rod (7) through a circular groove (8). The lower end of the adjusting rod (7) is fixedly connected to the bidirectional threaded rod (9). The fixing rod (4) is fixedly connected to the bearing (6).

4. The brushless rotor core positioning fixture according to claim 3, characterized in that, The bearing (6) is placed on the bottom wall of the square groove (17), and the bidirectional threaded rod (9) is placed in the square groove (17), with the lower end of the bidirectional threaded rod (9) rotatably connected to the bearing (6).

5. The brushless rotor core positioning fixture according to claim 4, characterized in that, The snap-fit ​​assembly also includes a threaded groove (15), a lower mating inclined plate (13), a first sliding block (14), a second sliding block (18), and an upper mating inclined plate (19). The first sliding block (14) and the second sliding block (18) are slidably connected inside the fixing rod (4). The lower mating inclined plate (13) is fixedly connected to the upper end of the first sliding block (14), and the upper mating inclined plate (19) is fixedly connected to the lower end of the second sliding block (18). Threaded grooves (15) are provided on the lower mating inclined plate (13), the upper mating inclined plate (19), the first sliding block (14), and the second sliding block (18).

6. The brushless rotor core positioning fixture according to claim 5, characterized in that, The lower connecting inclined plate (13), the upper connecting inclined plate (19), the first sliding block (14), and the second sliding block (18) are connected to the threaded rod through the threaded groove (15).

7. The brushless rotor core positioning fixture according to claim 6, characterized in that, The snap-fit ​​assembly also includes an abutment piece (10), a connecting block (11), and a main docking ramp (12). The fixing rod (4) is slidably connected to the connecting block (11) through the sliding groove (16). One end of the connecting block (11) is fixedly connected to the main docking ramp (12), and the other end of the connecting block (11) is fixedly connected to the abutment piece (10).

8. The brushless rotor core positioning fixture according to claim 7, characterized in that, The main docking inclined plate (12) is placed between the lower docking inclined plate (13) and the upper docking inclined plate (19), and the surface of the abutment piece (10) abuts against the rotor workpiece (3).

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