Auxiliary positioning tool for assembling magnetic steel on disc type motor stator coil

Abstract

The utility model relates to a positioning tool, belongs to the technical field of stator assembly, and particularly relates to an auxiliary positioning tool for assembling magnetic steel on a disc motor stator coil, which comprises a positioning seat, a fixed side plate is fixedly mounted on the top wall surface of the positioning seat, and two positioning plates are fixedly mounted on the side wall of the fixed side plate. A mounting assembly is arranged at the top of the positioning seat; according to the utility model, the bottom end of the positioning column is attached to the inner bottom wall surface of the stator outer frame, then the output shaft of the driving motor is controlled to rotate, the moving screw moves downwards along with the rotation of the adjusting sleeve, the distance between the moving screw and the bottom end of the positioning column is shortened, and the linkage rod expands outwards; the magnetic steel on the side wall of the electromagnetic plate is attached to the inner side wall of the stator outer frame, installation of the magnetic steel is completed, and the corresponding number of magnetic steel can be installed in the stator outer frame by adjusting the number of the linkage rods. The problem that an existing magnetic steel auxiliary tool is poor in expansibility is solved.

Description

Technical Field

[0001] This utility model relates to the field of stator assembly technology, and in particular to an auxiliary positioning tool for assembling magnets in the stator coil of a disc motor. Background Technology

[0002] The stator of a brushed small motor is a combination of a steel tubular stator housing and two permanent magnets. The magnets need to be fixed to the stator housing with glue.

[0003] A search revealed Chinese patent CN118739758A, which discloses a small internal rotor motor stator magnet positioning and assembly device. This device solves the problem of insufficient adhesion between the magnet and the stator in existing technologies, resulting in poor bonding effects when using adhesives. The device includes a base and a support assembly. The base has a positioning boss that positions the stator. The magnet and the support assembly are placed within the stator. The support assembly includes a rotating shaft, a wedge, and a support block. The rotating shaft includes a transmission part and a stop part. The stop part stops above the support block. The wedge is mounted on the transmission part. The movement of the transmission part drives the wedge to move axially. One of the wedge and the support block has an inclined groove, and the other has a slider that slides within the groove. The relative sliding of the wedge and the support block causes the support block to move outward and abut against the magnet.

[0004] In the aforementioned prior art solution, the movement of the transmission unit causes the support block to move outward and abut against the magnet, thereby pressing the magnet against the inner wall of the stator. However, in actual use, since the wedge is a frustum shape with a smaller cross-section closer to the top, the number of sidewalls of the wedge is limited. Therefore, the device has poor scalability and it is difficult to install multiple magnets inside the stator frame as needed. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model proposes an auxiliary positioning tool for assembling magnets in the stator coil of a disc motor. The bottom end of the positioning post is attached to the inner bottom wall of the stator outer frame. Then, the output shaft of the drive motor is controlled to rotate, and the moving screw moves downward as the adjusting sleeve rotates. The distance between the moving screw and the bottom end of the positioning post becomes shorter, and the linkage rod expands outward. The magnet on the side wall of the electromagnetic plate is attached to the inner side wall of the stator outer frame, completing the installation of the magnet. By adjusting the number of linkage rods, a corresponding number of magnets can be installed inside the stator outer frame.

[0006] The technical solution to achieve the purpose of this utility model is as follows: an auxiliary positioning tool for assembling magnets in the stator coil of a disc motor, including a positioning seat, a fixed side plate fixedly installed on the top wall of the positioning seat, two positioning plates fixedly installed on the side wall of the fixed side plate, a drive motor fixedly installed on the top wall of the top positioning plate, an adjusting sleeve fixedly installed on the output shaft of the drive motor, and an installation component provided on the top of the positioning seat, the installation component including;

[0007] The movable screw and the positioning pin are threadedly installed on the bottom wall of the adjusting sleeve, and the positioning pin is slidably installed on the bottom end of the movable screw. The bottom end of the side wall of both the movable screw and the positioning pin is provided with multiple positioning grooves at equal intervals around the circumference. Each of the multiple positioning grooves is provided with a linkage rod. Each of the multiple linkage rods is fixedly installed with a fixed rotating shaft on its side wall. The fixed rotating shaft is rotatably installed inside the positioning groove.

[0008] The system includes multiple connecting shafts, each rotating through the end of two linkage rods on the same side away from the positioning post. Similarly, there are multiple electromagnetic plates, each rotatably mounted on the side wall of the connecting shaft.

[0009] In some embodiments, multiple support legs are fixedly installed on the bottom wall of the positioning seat, and the adjusting sleeve is located between two positioning plates.

[0010] In some embodiments, the positioning base is provided with a clamping assembly, the clamping assembly including;

[0011] The positioning grooves include at least three grooves, which are equidistantly spaced circumferentially on the top wall of the positioning seat.

[0012] The clamping plates and adjusting screws are the same number as the limiting grooves. Multiple clamping plates are slidably installed inside multiple limiting grooves, and multiple adjusting screws are rotatably installed inside multiple limiting grooves. A bevel gear is fixedly installed on one end of each of the multiple adjusting screws.

[0013] The system includes a linkage groove, a rotating rod, and a linkage gear. The linkage groove is located on the bottom wall of the positioning seat. The rotating rod rotates through the bottom wall of the positioning seat and extends to the inside of the linkage groove. A linkage gear is fixedly installed on the top wall of the rotating rod and meshes with multiple bevel gears.

[0014] In some embodiments, the adjusting screw is threaded through the sidewall of the clamping plate.

[0015] In some embodiments, rubber pads are laid on the inner sidewalls of the plurality of electromagnetic plates that are in contact with the connecting shaft.

[0016] In some embodiments, a positioning groove is provided on the side wall of the movable screw, and a positioning block is fixedly installed on the inner side wall of the positioning plate, with the positioning block slidably installed inside the positioning groove.

[0017] Compared with the prior art, the significant advantages of this utility model are:

[0018] Firstly, this invention, by energizing an electromagnetic plate to make it magnetic, allows the magnet to be placed on the side wall of the electromagnetic plate. The magnetism of the electromagnetic plate surface ensures the magnet's stable position. The positioning post is then lifted upwards, creating a gap between its bottom surface and the top surface of the positioning base. The stator outer frame is then placed on top of the positioning base. Due to gravity, the bottom end of the positioning post adheres to the inner bottom wall of the stator outer frame. The output shaft of the drive motor is then rotated, causing the adjusting sleeve to rotate along with the motor's output shaft. The moving screw moves downwards with the rotation of the adjusting sleeve, shortening the distance between the moving screw and the bottom end of the positioning post. This causes the linkage rod to expand outwards until the magnet on the side wall of the electromagnetic plate adheres to the inner side wall of the stator outer frame, completing the magnet installation. This invention solves the problem of poor expandability in existing magnet auxiliary tools.

[0019] Secondly, this utility model, by meshing the linkage gear with the bevel gear on the side wall of the adjusting screw, allows multiple adjusting screws to rotate synchronously by rotating the rotating rod. As the adjusting screws rotate, multiple clamping plates move towards the side closer to or away from the rotating rod, enabling the clamping plates to hold the stator outer frame at the top of the positioning seat, ensuring the stability of the stator outer frame. Furthermore, the top circumference of the positioning seat is provided with at least three limiting grooves. When the multiple clamping plates move towards the rotating rod, the position of the stator outer frame can be adjusted to ensure that the center of the stator outer frame is aligned with the positioning post. Attached Figure Description

[0020] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0021] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a three-dimensional schematic diagram of the internal structure of the adjusting sleeve of this utility model;

[0023] Figure 3 This is a three-dimensional schematic diagram of the internal structure of the positioning seat of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Positioning seat; 2. Support leg; 3. Limiting groove; 4. Clamping plate; 5. Adjusting screw; 6. Linkage groove; 7. Rotating rod; 8. Linkage gear; 9. Fixed side plate; 10. Positioning plate; 11. Drive motor; 12. Adjusting sleeve; 13. Moving screw; 14. Positioning column; 15. Linkage rod; 16. Fixed rotating shaft; 17. Connecting rotating shaft; 18. Electromagnetic plate; 19. Positioning block; 20. Positioning groove. Detailed Implementation

[0026] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0027] This utility model provides an auxiliary positioning tool for assembling magnets in the stator coil of a disc motor through improvements. The technical solution of this utility model is as follows:

[0028] like Figures 1-3As shown, an auxiliary positioning tool for assembling magnets in the stator coil of a disc motor includes a positioning base 1. Multiple support legs 2 are fixedly installed on the bottom wall of the positioning base 1. A fixed side plate 9 is fixedly installed on the top wall of the positioning base 1. Two positioning plates 10 are fixedly installed on the side wall of the fixed side plate 9. A drive motor 11 is fixedly installed on the top wall of the top positioning plate 10. An adjusting sleeve 12 is fixedly installed on the output shaft of the drive motor 11, positioned between the two positioning plates 10. A mounting assembly is provided on the top of the positioning base 1, including a moving screw. 13. Positioning pin 14, connecting shaft 17, and electromagnetic plate 18. The moving screw 13 is threaded onto the bottom wall of the adjusting sleeve 12. The positioning pin 14 is slidably mounted on the bottom end of the moving screw 13. Multiple positioning grooves 20 are circumferentially spaced at the bottom end of the side walls of both the moving screw 13 and the positioning pin 14. Each positioning groove 20 contains a linkage rod 15. A fixed rotating shaft 16 is fixedly mounted on the side wall of each linkage rod 15. The fixed rotating shaft 16 is rotatably mounted inside the positioning groove 20. There are multiple connecting shafts 17, each rotating independently. Two linkage rods 15 running through the same side are located away from the end of the positioning post 14. Multiple electromagnetic plates 18 are also present, each rotatably mounted on the side wall of the connecting shaft 17. Rubber pads are laid on the inner side walls of the electromagnetic plates 18 that contact the connecting shaft 17. By energizing the electromagnetic plates 18, they become magnetic. The magnet to be installed is placed on the side wall of the electromagnetic plate 18. The magnetism of the electromagnetic plate 18 ensures the stability of the magnet's position, lifting the positioning post 14 upwards so that the bottom wall of the positioning post 14 is flush with the top of the positioning seat 1. A gap is left in the wall, and then the stator outer frame is placed on top of the positioning seat 1. The bottom end of the positioning column 14 is in contact with the inner bottom wall of the stator outer frame due to gravity. Then, the output shaft of the drive motor 11 is controlled to rotate, and the adjusting sleeve 12 rotates together with the output shaft of the drive motor 11. The moving screw 13 moves downward with the rotation of the adjusting sleeve 12. The distance between the moving screw 13 and the bottom end of the positioning column 14 becomes shorter, and the linkage rod 15 expands outward until the magnet on the side wall of the electromagnetic plate 18 is in contact with the inner side wall of the stator outer frame, thus completing the installation of the magnet.

[0029] like Figure 2 As shown, in this embodiment, in order to ensure that the moving screw 13 can slide stably up and down, a positioning groove 20 is provided on the side wall of the moving screw 13, and a positioning block 19 is fixedly installed on the inner side wall of the positioning plate 10. The positioning block 19 is slidably installed inside the positioning groove 20. Through the cooperation of the positioning block 19 and the positioning groove 20, the position of the moving screw 13 is restricted, so that the moving screw 13 can only slide up and down, and the situation where the moving screw 13 rotates synchronously with the adjusting sleeve 12 is avoided.

[0030] like Figure 1 and Figure 3As shown, in this embodiment, to ensure the stability of the stator outer frame, a clamping assembly is provided inside the positioning seat 1. The clamping assembly includes a limiting groove 3, a clamping plate 4, an adjusting screw 5, a linkage groove 6, a rotating rod 7, and a linkage gear 8. There are at least three limiting grooves 3, which are equidistantly spaced on the top wall of the positioning seat 1. There are also multiple clamping plates 4, which are slidably installed inside the multiple limiting grooves 3. There are also multiple adjusting screws 5, which are rotatably installed inside the multiple limiting grooves 3. The adjusting screws 5 are threaded through the side wall of the clamping plate 4, and a bevel gear is fixedly installed at one end of each of the multiple adjusting screws 5. The linkage groove 6 is opened on the bottom wall of the positioning seat 1, and the rotating rod 7 rotatably passes through the bottom wall of the positioning seat 1. The top of the rotating rod 7 extends into the interior of the linkage groove 6. A linkage gear 8 is fixedly installed on the top wall of the rotating rod 7. The linkage gear 8 meshes with multiple bevel gears. By meshing the linkage gear 8 with the bevel gears on the side wall of the adjusting screw 5, the multiple adjusting screws 5 can rotate synchronously by rotating the rotating rod 7. As the adjusting screws 5 rotate, the multiple clamping plates 4 move towards the side closer to the rotating rod 7 or away from the rotating rod 7, so that the multiple clamping plates 4 can clamp the stator outer frame at the top of the positioning seat 1, ensuring the stability of the stator outer frame. The top circumference of the positioning seat 1 is provided with at least three limiting grooves 3. When the multiple clamping plates 4 move towards the rotating rod 7, the position of the stator outer frame can be adjusted to ensure that the center of the stator outer frame is aligned with the positioning post 14.

[0031] The specific working method is as follows: By meshing the linkage gear 8 with the bevel gear on the side wall of the adjusting screw 5, the multiple adjusting screws 5 can rotate synchronously by rotating the rotating rod 7. The multiple clamping plates 4 move towards the side closer to the rotating rod 7 or away from the rotating rod 7 as the adjusting screws 5 rotate, so that the multiple clamping plates 4 can clamp the stator outer frame on the top of the positioning seat 1, ensuring the stability of the stator outer frame. By energizing the electromagnetic plate 18, the electromagnetic plate 18 becomes magnetic. The magnet to be installed is placed on the side wall of the electromagnetic plate 18. The magnetism of the surface of the electromagnetic plate 18 ensures the stability of the magnet's position. The positioning column 14 is lifted upwards, so that the bottom wall of the positioning column 14 is flush with the top wall of the positioning seat 1. Make room for movement, then place the stator outer frame on top of the positioning seat 1. The bottom end of the positioning column 14 is in contact with the inner bottom wall of the stator outer frame due to gravity. Then, control the output shaft of the drive motor 11 to rotate. The adjusting sleeve 12 rotates together with the output shaft of the drive motor 11. The moving screw 13 moves downward with the rotation of the adjusting sleeve 12. The distance between the moving screw 13 and the bottom end of the positioning column 14 becomes shorter. The linkage rod 15 thus expands outward until the magnet on the side wall of the electromagnetic plate 18 is in contact with the inner side wall of the stator outer frame, which facilitates the installation of the magnet. After the magnet is installed, the electromagnetic plate 18 is de-energized and loses its magnetism, making it easy to remove the electromagnetic plate 18 from the inside of the stator outer frame.

[0032] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.

Claims

1. An auxiliary positioning tool for assembling magnets in the stator coil of a disc motor, comprising a positioning base (1), characterized in that: The top wall of the positioning seat (1) is fixedly installed with a fixed side plate (9), and two positioning plates (10) are fixedly installed on the side wall of the fixed side plate (9). The top wall of the top positioning plate (10) is fixedly installed with a drive motor (11), and the output shaft of the drive motor (11) is fixedly installed with an adjusting sleeve (12). The top of the positioning seat (1) is provided with an installation assembly, which includes: The movable screw (13) and the positioning column (14) are threadedly installed on the bottom wall of the adjusting sleeve (12), and the positioning column (14) is slidably installed on the bottom end of the movable screw (13). The bottom end of the side wall of the movable screw (13) and the positioning column (14) are provided with multiple positioning grooves (20) at equal intervals around the circumference. The interior of the multiple positioning grooves (20) is provided with linkage rods (15), and the side wall of the multiple linkage rods (15) is fixedly installed with a fixed rotating shaft (16). The fixed rotating shaft (16) is rotatably installed inside the positioning groove (20). There are multiple connecting shafts (17) and multiple connecting shafts (18). The multiple connecting shafts (17) rotate through the two linkage rods (15) on the same side away from the positioning column (14). There are also multiple electromagnetic plates (18). The multiple electromagnetic plates (18) are rotatably installed on the side wall of the connecting shafts (17).

2. The auxiliary positioning tool for assembling magnets in the stator coil of a disc motor according to claim 1, characterized in that: Multiple support legs (2) are fixedly installed on the bottom wall of the positioning seat (1), and the adjusting sleeve (12) is located between the two positioning plates (10).

3. The auxiliary positioning tool for assembling magnets in the stator coil of a disc motor according to claim 1, characterized in that: The positioning seat (1) is provided with a clamping assembly inside, the clamping assembly including; The limiting groove (3) has at least three grooves, which are equidistantly spaced on the top wall of the positioning seat (1). The clamping plate (4) and adjusting screw (5) are the same number as the limiting groove (3). Multiple clamping plates (4) are slidably installed inside multiple limiting grooves (3), and multiple adjusting screws (5) are rotatably installed inside multiple limiting grooves (3). A bevel gear is fixedly installed on one end of each of the multiple adjusting screws (5). The linkage groove (6), the rotating rod (7), and the linkage gear (8) are provided. The linkage groove (6) is opened on the bottom wall of the positioning seat (1). The rotating rod (7) rotates through the bottom wall of the positioning seat (1). The top end of the rotating rod (7) extends into the interior of the linkage groove (6). The linkage gear (8) is fixedly installed on the top wall of the rotating rod (7). The linkage gear (8) meshes with multiple bevel gears.

4. The auxiliary positioning tool for assembling magnets in the stator coil of a disc motor according to claim 3, characterized in that: The adjusting screw (5) is threaded through the side wall of the clamp (4).

5. The auxiliary positioning tool for assembling magnets in the stator coil of a disc motor according to claim 1, characterized in that: Rubber pads are laid on the inner sidewalls of the multiple electromagnetic plates (18) that are in contact with the connecting shaft (17).

6. The auxiliary positioning tool for assembling magnets in the stator coil of a disc motor according to claim 1, characterized in that: The moving screw (13) has a positioning groove (20) on its side wall, and a positioning block (19) is fixedly installed on the inner side wall of the positioning plate (10). The positioning block (19) is slidably installed inside the positioning groove (20).

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