Permanent magnet motor magnetic steel assembly tool

Abstract

The utility model discloses a permanent magnet motor magnetic steel assembly tool, which relates to the field of motor manufacture and comprises a main body and a mounting ring, the mounting ring is fixedly mounted at the top end of the shaft surface of the main body, a magnetic steel positioning shaft sleeve is arranged at the top end of the shaft surface of the main body, and supporting seats are fixedly mounted on the periphery of the top end of the outer surface of the magnetic steel positioning shaft sleeve. The magnetic steel assembling precision and efficiency are effectively guaranteed through multi-aspect ingenious design, firstly, the magnetic steel positioning shaft sleeve accurately positions the magnetic steel mounting position, the mounting accuracy is guaranteed from the source, the supporting seat, the adjusting fastening block and the adapter are matched with one another, the magnetic steel is mounted on the magnetic steel positioning shaft sleeve, and the magnetic steel positioning shaft sleeve is matched with the adapter. Stable support is provided for the tool, the relative position of the internal structure can be flexibly adjusted, different assembly requirements are met, meanwhile, polarity judgment is conducted on the structures such as the auxiliary magnetic steel installation groove and the special-shaped pressing plate, the auxiliary magnetic steel is prevented from falling off, and wrong installation of the main magnetic steel is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the field of motor manufacturing, and specifically relates to a magnetic steel assembly tooling for a permanent magnet motor. Background Technique

[0002] Magnetic steel is a main component of a permanent magnet motor. Due to its strong magnetism, it is extremely easy to be adsorbed together with ferromagnetic materials during installation. Especially for large and medium-sized permanent magnet motors, it is difficult to install without tooling assistance and is prone to danger.

[0003] Many existing assembly tools lack a high-precision positioning mechanism, resulting in inaccurate installation positions of magnetic steel, which will directly affect the performance and overall efficiency of the motor, because any slight deviation may lead to poor contact and increased energy consumption. Summary of the Utility Model

[0004] To solve the above technical problems, a magnetic steel assembly tooling for a permanent magnet motor is provided. This technical solution solves the problem of poor contact caused by the lack of a high-precision positioning component in the above background technique.

[0005] To achieve the above purposes, the technical solution adopted by the utility model is as follows:

[0006] A magnetic steel assembly tooling for a permanent magnet motor, comprising: a main body and an installation ring. The top end of the shaft surface of the main body is fixedly installed with an installation ring. A magnetic steel positioning bushing is arranged at the top end of the shaft surface of the main body. Support seats are fixedly installed around the top end of the outer surface of the magnetic steel positioning bushing. An adjusting fastening block is fixedly installed at the rear end of the outer surface of the support seat, and the bottom end of the outer surface of the adjusting fastening block abuts against the installation ring. A plurality of transfer members are fixedly installed at one end of the adjacent support seats.

[0007] Preferably, a plurality of first magnetic steel guiding grooves are opened at the top end of the outer surface of the installation ring. A plurality of first limiting members are installed at the top end of the outer surface of the installation ring. A positioning rod is inserted inside the first limiting members at the top end of the outer surface of the installation ring.

[0008] Preferably, a lower magnetic steel assembly guiding tooling is installed at one side of the top end of the outer surface of the installation ring. An upper magnetic steel assembly guiding tooling is fixedly installed at the top end of the outer surface of the lower magnetic steel assembly guiding tooling. A polarity judgment auxiliary magnetic steel cover plate installation groove is opened at the top end of the outer surface of the upper magnetic steel assembly guiding tooling.

[0009] Preferably, a magnetic steel assembly guiding tooling fixing hole is opened at the top end of the outer surface of the lower magnetic steel assembly guiding tooling. A polarity judgment auxiliary magnetic steel installation groove is opened at the front end of the outer surface of the upper magnetic steel assembly guiding tooling. A magnetic steel guiding groove is opened at the bottom end of the top end of the outer surface of the lower magnetic steel assembly guiding tooling at the position of the polarity judgment auxiliary magnetic steel installation groove.

[0010] Preferably, a special-shaped pressing plate is arranged at the top of the outer surface of the installation groove of the polarity judgment auxiliary magnetic steel cover plate. The outer surfaces of the upper magnetic steel assembly guiding tooling and the special-shaped pressing plate are installed through the outer surfaces by a second limiting member. The outer surfaces of the lower magnetic steel assembly guiding tooling and the installation ring are installed through the outer surfaces by a positioning pin.

[0011] Preferably, a polarity judgment auxiliary magnetic steel is inserted into the outer surface of the installation groove of the polarity judgment auxiliary magnetic steel. A main magnetic steel is inserted into the top of the outer surface of the magnetic steel guiding groove. A process hole is arranged at the top of the outer surface of the positioning pin.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] In a permanent magnet motor magnetic steel assembly tooling proposed by this solution, the accuracy and efficiency of magnetic steel assembly are effectively guaranteed through ingenious designs in many aspects. Firstly, the magnetic steel positioning bushing accurately positions the magnetic steel installation position, ensuring the installation accuracy from the source. The support seat, adjustment fastening block and adapter cooperate with each other, not only providing a stable support for the tooling, but also being able to flexibly adjust the relative positions of the internal structures to adapt to different assembly requirements. The first magnetic steel guiding groove on the installation ring, with a unique upper U and lower rectangular shape, combined with the polarity judgment auxiliary magnetic steel, realizes the magnetic steel polarity judgment and precise guiding into the groove. The guiding groove is precisely aligned with the rotor core groove, and both ends can be assembled simultaneously, greatly shortening the time. At the same time, structures such as the installation groove of the polarity judgment auxiliary magnetic steel and the special-shaped pressing plate prevent the auxiliary magnetic steel from falling off and effectively avoid the wrong installation of the main magnetic steel. Description of the Drawings

[0014] Figure 1 is a structural schematic diagram of the present utility model;

[0015] Figure 2 is a structural schematic diagram of the magnetic steel assembly guiding tooling in the present utility model;

[0016] Figure 3 is a second elevation structural schematic diagram of the magnetic steel assembly guiding tooling in the present utility model;

[0017] Figure 4 is a structural schematic diagram of the positioning pin in the present utility model.

[0018] The reference numerals in the figure are:

[0019] 1. Main body; 2. Mounting ring; 3. Positioning rod; 4. First magnet guiding groove; 5. First limiting member; 6. Support seat; 7. Magnet positioning bushing; 8. Adapter; 9. Adjusting fastening block; 10. Lower magnet assembly guiding tooling; 11. Upper magnet assembly guiding tooling; 12. Positioning pin; 13. Main magnet; 14. Polarity judgment auxiliary magnet; 15. Special-shaped pressing plate; 16. Second limiting member; 17. Polarity judgment auxiliary magnet cover mounting groove; 18. Polarity judgment auxiliary magnet mounting groove; 19. Second magnet guiding groove; 20. Magnet assembly guiding tooling fixing hole; 21. Process hole. Detailed implementation mode

[0020] The following description is used to disclose the present utility model so that those skilled in the art can implement the present utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations.

[0021] Refer to Figures 1-4 As shown, a magnet assembly tooling for a permanent magnet motor includes: a main body 1 and a mounting ring 2. The top end of the shaft surface of the main body 1 is fixedly installed with a mounting ring 2. A magnet positioning bushing 7 is provided at the top end of the shaft surface of the main body 1, and its function is to accurately position the magnet installation position and ensure the accuracy of magnet installation. The outer surface of the top end of the magnet positioning bushing 7 is fixedly installed with support seats 6 around it. The support seats 6 not only provide support for other components of the tooling, but also play a key role in connection and stability. The rear end of the outer surface of the support seat 6 is fixedly installed with an adjusting fastening block 9, and the bottom end of the outer surface of the adjusting fastening block 9 abuts against the mounting ring 2. By adjusting this fastening block, the relative position of the internal structure of the tooling can be adjusted to meet different assembly requirements. One end of several groups of support seats 6 close to each other is fixedly installed with an adapter 8 to enhance the overall structural stability of the tooling.

[0022] Furthermore, several groups of first magnet guiding grooves 4 are opened on the top end of the outer surface of the mounting ring 2. The first magnet guiding grooves 4 are uniquely designed, with a U-shaped upper part and a rectangular lower part. During actual assembly, first place the main magnet 13 into the U-shaped groove, and judge the polarity through the polarity judgment auxiliary magnet 14. If the polarity is correct, the auxiliary magnet will adsorb the main magnet 13. At this time, then push the main magnet 13 into the rectangular groove. With the guidance of the rectangular groove, the main magnet 13 can smoothly enter the rotor core. Several groups of first limiting members 5 are installed on the top end of the outer surface of the mounting ring 2, and a positioning rod 3 is inserted inside the first limiting members 5 at the top end of the outer surface of the mounting ring 2. These structures cooperate together to further limit the displacement during the magnet installation process and ensure the installation accuracy.

[0023] Further, a lower magnet assembly guiding tooling 10 is installed on one side of the top end of the outer surface of the mounting ring 2, and an upper magnet assembly guiding tooling 11 is fixedly installed on the top end of the outer surface of the lower magnet assembly guiding tooling 10. The two form a magnet assembly guiding tooling. The magnet assembly guiding tooling can be designed to be a structure that can assemble one slot, one pole, a pair of poles or multiple poles each time according to actual needs. In this tooling example, it is designed for a pair of poles. This tooling is designed with four magnet guiding slots, and the slot dimensions are precisely aligned with the magnet assembly slots of the motor rotor core. Every two slots form a V shape, corresponding to one magnetic pole of the motor. The polarities of the main magnets 13 guided by the two groups of holes are opposite, and each group of V-shaped slots is for guiding the installation of magnets with the same polarity. When in use, place one tooling at each end of the iron core, and the assembly can be carried out simultaneously from both ends, greatly shortening the assembly time. A magnet assembly guiding tooling fixing hole 20 is opened at the top end of the outer surface of the lower magnet assembly guiding tooling 10. The tooling is pressed against the end of the rotor core by using a screw and a nut passing through this fixing hole to prevent the tooling from moving during installation and unable to guide normally.

[0024] Further, a polarity judgment auxiliary magnet cover plate installation groove 17 is opened at the top end of the outer surface of the upper magnet assembly guiding tooling 11, a magnet assembly guiding tooling fixing hole 20 is opened at the top end of the outer surface of the lower magnet assembly guiding tooling 10, a polarity judgment auxiliary magnet installation groove 18 is opened at the front end of the outer surface of the upper magnet assembly guiding tooling 11. A rectangular small groove, that is, a polarity judgment auxiliary magnet installation groove 18, is designed on the back of each magnet guiding slot. A second magnet guiding slot 19 is opened at the bottom end of the outer surface of the lower magnet assembly guiding tooling 10 at the position of the polarity judgment auxiliary magnet installation groove 18. A special-shaped pressing plate 15 is arranged at the top end of the outer surface of the polarity judgment auxiliary magnet cover plate installation groove 17. The polarity judgment auxiliary magnet 14 is pressed by the special-shaped pressing plate 15 and screws to prevent it from falling off, and each special-shaped pressing plate 15 presses two magnets with the same polarity at the same time. The outer surfaces of the upper magnet assembly guiding tooling 11 and the special-shaped pressing plate 15 are installed through the outer surface by a second limiting member 16, and the outer surfaces of the lower magnet assembly guiding tooling 10 and the mounting ring 2 are installed through the outer surface by a positioning pin 12. The polarity judgment auxiliary magnet 14 is inserted into the outer surface of the polarity judgment auxiliary magnet installation groove 18, and the polarity judgment auxiliary magnet 14 is installed in the groove, and its polarity direction is the same as the polarity direction of the main magnet 13 to be installed. When the main magnet 13 approaches the magnet guiding slot, if the installation direction is incorrect, the auxiliary magnet will generate a repulsive force on the main magnet 13, making the main magnet 13 unable to be inserted into the guiding slot, thus effectively preventing incorrect installation. The rectangular small groove is an open groove, which is convenient for taking out the magnet. When it is necessary to change the polarity of the main magnet 13, the auxiliary magnet can be easily taken out and the direction can be adjusted. The main magnet 13 is inserted into the top end of the outer surface of the second magnet guiding slot 19.

[0025] Further, a process hole 21 is provided at the top end of the outer surface of the positioning pin 12. The positioning pin 12 is used for positioning the magnetic steel assembly guiding tooling. The smaller-diameter end thereof is fitted with the positioning hole designed on the rotor core, and the larger-diameter end is fitted with the guiding tooling. The process hole 21 is used for the installation and disassembly of the positioning pin 12.

[0026] Working principle and implementation method: First, fix the mounting ring 2 at the top end of the shaft surface of the main body 1, accurately position the magnetic steel installation position through the magnetic steel positioning bushing 7, use tooling structures such as the support seat 6, the adjusting fastening block 9, and the adapter 8 to adjust and ensure its stability. Then, place the main magnetic steel 13 into the upper U-shaped groove of the first magnetic steel guiding groove 4 at the top end of the outer surface of the mounting ring 2, and use the polarity judgment auxiliary magnetic steel 14 to judge the polarity. If the polarity is correct, the auxiliary magnetic steel will adsorb the main magnetic steel 13, and then push the main magnetic steel 13 into the rectangular groove so that it enters the rotor core. At the same time, the first limiting member 5 and the positioning rod 3 further limit the displacement of the magnetic steel. Then, place a set of magnetic steel assembly guiding tooling composed of the lower magnetic steel assembly guiding tooling 10 and the upper magnetic steel assembly guiding tooling 11 at both ends of the core. This tooling is designed with magnetic steel guiding grooves that are precisely aligned with the magnetic steel assembly grooves of the motor rotor core. In this example, it is a pair of poles, and every two grooves form a V shape corresponding to one magnetic pole. Pass the screw and nut through the magnetic steel assembly guiding tooling fixing hole 20 of the lower magnetic steel assembly guiding tooling 10 to press the tooling tightly against the end of the rotor core. Then, press the polarity judgment auxiliary magnetic steel 14 into the polarity judgment auxiliary magnetic steel cover plate installation groove 17 through the special-shaped pressing plate 15 and screws to prevent it from falling off. If the installation direction of the main magnetic steel 13 close to the magnetic steel guiding groove is incorrect, the auxiliary magnetic steel will generate a repulsive force to prevent the installation. Finally, use the positioning pin 12 for tooling positioning, and perform installation and disassembly operations through the process hole 21 on the positioning pin 12.

[0027] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A magnetic steel assembly tooling for a permanent magnet motor, characterized in that, Including: A main body (1) and a mounting ring (2). The mounting ring (2) is fixedly installed at the top of the shaft surface of the main body (1). A magnet steel positioning bushing (7) is arranged at the top of the shaft surface of the main body (1). A support seat (6) is fixedly installed around the top of the outer surface of the magnet steel positioning bushing (7). An adjusting fastening block (9) is fixedly installed at the rear end of the outer surface of the support seat (6), and the bottom end of the outer surface of the adjusting fastening block (9) abuts against the mounting ring (2). One end of several groups of the support seats (6) close to each other is fixedly installed with a transfer member (8).

2. The fixture for assembling permanent magnets of a permanent magnet motor according to claim 1, wherein: Several groups of first magnet steel guiding grooves (4) are formed at the top of the outer surface of the mounting ring (2). Several groups of first limiting members (5) are installed at the top of the outer surface of the mounting ring (2). A positioning rod (3) is inserted into the inner side of the first limiting members (5) at the top of the outer surface of the mounting ring (2).

3. A permanent magnet motor magnet assembly tooling according to claim 1, characterized in that: A lower magnet steel assembly guiding tooling (10) is installed at one side of the top of the outer surface of the mounting ring (2). An upper magnet steel assembly guiding tooling (11) is fixedly installed at the top of the outer surface of the lower magnet steel assembly guiding tooling (10). A polarity judgment auxiliary magnet steel cover plate installation groove (17) is formed at the top of the outer surface of the upper magnet steel assembly guiding tooling (11).

4. A permanent magnet motor magnet assembly tooling according to claim 3, characterized in that: A magnet steel assembly guiding tooling fixing hole (20) is formed at the top of the outer surface of the lower magnet steel assembly guiding tooling (10). A polarity judgment auxiliary magnet steel installation groove (18) is formed at the front end of the outer surface of the upper magnet steel assembly guiding tooling (11). A second magnet steel guiding groove (19) is formed at the bottom end of the top of the outer surface of the lower magnet steel assembly guiding tooling (10) at the position of the polarity judgment auxiliary magnet steel installation groove (18).

5. A permanent magnet motor magnet assembly tooling according to claim 4, characterized in that: A special-shaped pressing plate (15) is arranged at the top of the outer surface of the polarity judgment auxiliary magnet steel cover plate installation groove (17). The outer surfaces of the upper magnet steel assembly guiding tooling (11) and the special-shaped pressing plate (15) are installed through the outer surfaces by a second limiting member (16). The outer surfaces of the lower magnet steel assembly guiding tooling (10) and the mounting ring (2) are installed through the outer surfaces by a positioning pin (12).

6. A magnetic steel assembly tooling for a permanent magnet motor according to claim 4, characterized in that: A polarity judgment auxiliary magnet steel (14) is inserted into the outer surface of the polarity judgment auxiliary magnet steel installation groove (18). A main magnet steel (13) is inserted into the top of the outer surface of the second magnet steel guiding groove (19).

7. A magnetic steel assembly tooling for a permanent magnet motor according to claim 5, characterized in that: A process hole (21) is formed at the top of the outer surface of the positioning pin (12).

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