Permanent magnet motor rotor magnet insertion device

Abstract

The utility model relates to the technical field of rotor assembly, specifically discloses a permanent magnet motor rotor magnetic steel inserting device. Including support, magnetic steel storage spare, false rotor and push assembly, false rotor is located at the top of magnetic steel storage spare, and false rotor is equipped with the multiple rotor magnetic steel grooves of annular distribution, and rotor magnetic steel groove extends longitudinally and is through and through up and down, push assembly is located at the bottom of magnetic steel storage spare, and push assembly includes the multiple magnetic steel push board of annular distribution and is used for driving magnetic steel push board to lift drive piece, the middle part of magnetic steel storage spare is equipped with magnetic attraction spare, and magnetic steel storage spare is equipped with multiple push board through -hole that can supply magnetic steel push board and pass through along the circumferential distribution of magnetic attraction spare, the top surface of magnetic steel storage spare is equipped with multiple magnetic steel passageway, and the tail end of each magnetic steel passageway and each push board through -hole one -to -one correspondence intercommunication, each rotor magnetic steel groove, each magnetic steel push board and each push board through -hole one -to -one up and down directly opposite. The device can realize the multiple storage and disposable fast insertion of magnetic steel, and the production efficiency is improved significantly.

Description

Technical Field

[0001] This utility model relates to the technical field of rotor assembly, and specifically discloses a permanent magnet motor rotor magnet insertion device. Background Technology

[0002] Permanent magnet motors, due to their advantages such as high power density, simple structure, and reliable operation, have been widely used in household appliances, medical devices, automobiles, aerospace, and defense. The distribution of magnets within the rotor of existing motors is shown in [reference needed]. Figure 1 In the production of permanent magnet motors, the insertion of rotor magnets is one of the key processes. Traditionally, magnet insertion is usually done manually, which presents several problems. First, manual magnet insertion is inefficient and labor-intensive, making it unsuitable for large-scale production. Second, due to the strong magnetism of the magnets, operators are prone to injury during insertion, posing a safety hazard. Furthermore, the precision of manual operation is difficult to guarantee, easily leading to incorrect magnet orientation or improper installation, affecting rotor quality and performance, and thus increasing the scrap rate. Therefore, automated magnet insertion devices are gradually being used to replace manual installation.

[0003] For example, utility model patent CN209072289U discloses an automatic magnet insertion device for permanent magnet motor rotors. This device, through the arrangement of a base, a first motor, a guide rail, a slider seat, a second motor, a support cylinder, a V-block, a hopper, and a punch, achieves automated magnet insertion. However, this device has the following problems: First, its complex structure involves multiple mechanical parts and a complex drive system, increasing manufacturing costs and maintenance difficulty. Second, its production efficiency still needs improvement. The cylinder-driven punch can only press a few magnets into the permanent magnet rotor core slots at a time. It then waits for the second motor to drive the permanent magnet rotor core, aligning the next permanent magnet rotor core slot with the punch, before continuing to press magnets into other permanent magnet rotor core slots. This requires multiple rotations for alignment to complete the assembly of all magnets in one revolution of the motor rotor. These multiple rotations are not only inefficient but also pose a risk of punch damage due to rotational errors.

[0004] Therefore, it is of great significance to develop a permanent magnet motor rotor magnet insertion device with a simpler structure and higher production efficiency. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a permanent magnet motor rotor magnet insertion device.

[0006] This utility model discloses a permanent magnet motor rotor magnet insertion device, which adopts the following technical solution:

[0007] A permanent magnet motor rotor magnet insertion device includes a support frame, on which a magnet storage component, a dummy rotor, and a pushing component are mounted. The dummy rotor is located at the top of the magnet storage component and has multiple rotor magnet slots arranged in a ring, extending longitudinally and passing through the top and bottom. The pushing component is located at the bottom of the magnet storage component and includes multiple magnet push plates arranged in a ring and a driving component for driving the magnet push plates to rise and fall. A magnetic suction component is provided in the middle of the magnet storage component, and the magnet storage component has multiple push plate through holes arranged circumferentially along the magnetic suction component and allowing the magnet push plates to pass through. The top surface of the magnet storage component has multiple magnet channels, and the ends of each magnet channel are connected to each push plate through hole. Each rotor magnet slot, each magnet push plate, and each push plate through hole are vertically aligned.

[0008] Preferably, the dummy rotor has a rotor shaft slot at its center.

[0009] Preferably, the top of the dummy rotor is provided with a rotor positioning pin.

[0010] Preferably, the magnetic channel extends radially along the magnetic suction member and penetrates to the outer edge of the magnetic storage member.

[0011] Preferably, the dummy rotor and the magnet storage component are detachably connected to the bracket.

[0012] Preferably, the magnet storage component has multiple connection holes, and the bracket has an annular step for supporting the magnet storage component, with a connecting post on the annular step that matches the connection holes.

[0013] Preferably, the magnet pusher plate is detachably connected to the output end of the drive component.

[0014] Preferably, the output end of the drive component is fixed with a connecting plate, and a fixed seat is detachably connected to the connecting plate, and the magnet push plate is assembled on the fixed seat.

[0015] Preferably, the driving component is a cylinder.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] This utility model discloses a permanent magnet motor rotor magnet insertion device. By setting a magnet storage component, a dummy rotor, and a pushing assembly on a support, it achieves efficient magnet storage and rapid insertion. The magnet storage component's magnet channel and push plate through-hole, combined with the magnetic suction component, can stably feed individual magnets from the magnet strip into the rotor magnet slots of the dummy rotor for storage. This fully utilizes the time gap between installing and removing the real rotor, enabling multiple magnet storage and one-time rapid insertion. This significantly improves the efficiency and accuracy of magnet insertion, reduces manual operation, lowers labor intensity, and increases production efficiency. Attached Figure Description

[0018] Figure 1 These are longitudinal and transverse sectional views of the motor rotor.

[0019] Figure 2 This is a longitudinal sectional view of the permanent magnet motor rotor magnet insertion device in this embodiment;

[0020] Figure 3 This is a longitudinal sectional view of the magnet storage component in this embodiment;

[0021] Figure 4 This is a top view of the magnet storage component in this embodiment.

[0022] Explanation of icon numbers:

[0023] 1. Bracket; 11. Annular step; 2. Magnet storage component; 21. Magnetic suction component; 22. Push plate through hole; 23. Magnet channel; 24. Connecting hole; 3. Dummy rotor; 31. Rotor magnet slot; 32. Rotor shaft slot; 33. Rotor positioning pin; 4. Push assembly; 41. Cylinder; 42. Connecting plate; 43. Fixing base; 44. Magnet push plate; 5. Magnet; 6. Real rotor. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] This embodiment discloses a permanent magnet motor rotor magnet insertion device, referring to... Figure 2-4The system includes a support 1, on which a magnet storage component 2, a dummy rotor 3, and a pushing assembly 4 are mounted. The dummy rotor 3 is located at the top of the magnet storage component 2 and has multiple rotor magnet slots 31 arranged in a ring. The rotor magnet slots 31 extend longitudinally and are vertically connected. The pushing assembly 4 is located at the bottom of the magnet storage component 2 and includes multiple magnet push plates 44 arranged in a ring and a driving component for driving the magnet push plates 44 to rise and fall. A magnetic suction component 21 is provided in the middle of the magnet storage component 2. The magnet storage component 2 has multiple push plate through holes 22 arranged circumferentially along the magnetic suction component 21 and allowing the magnet push plates 44 to pass through. The push plate through holes 22 allow a single magnet 5 to pass through. The top surface of the magnet storage component 2 has multiple magnet channels 23. The end of each magnet channel 23 is connected to each push plate through hole 22. Each rotor magnet slot 31, each magnet push plate 44, and each push plate through hole 22 are vertically aligned. This solution utilizes a magnet storage unit 2, a dummy rotor 3, and a pushing assembly 4. The magnet storage unit 2 stores five magnets. A single magnet 5 is attracted by the magnetic suction unit 21 and exits from the end of the magnet channel 23. The magnet pusher plate 44 of the pushing assembly 4 pushes the single magnet 5 into the rotor magnet slot 31 of the dummy rotor 3. After the magnet pusher plate 44 exits, the next magnet 5 is attracted by the magnetic suction unit 21 and continues to exit. This allows the magnets 5 in the magnet channel 23 to enter the rotor magnet slot 31 of the dummy rotor 3 through multiple pushes by the pushing assembly 4, completing multi-layer storage. When the number of stacked layers is the same as the number of magnets required for the real rotor 6, the pushing assembly pushes the magnets 5 in the dummy rotor 3 into the real rotor 6 in one go. This fully utilizes the time gap between the installation and removal of the real rotor 6, improving the efficiency and accuracy of magnet insertion.

[0026] As a preferred embodiment, the dummy rotor 3 has a rotor shaft slot 32 at its shaft center. The rotor shaft slot 32 facilitates the quick and accurate docking of the real rotor 6 with the dummy rotor 3 during assembly, ensuring the positioning accuracy of the real rotor 6, thereby improving the reliability of the magnet 5 being inserted into the magnet slot of the real rotor 6 and reducing assembly errors.

[0027] As a preferred embodiment, the dummy rotor 3 is provided with a rotor positioning pin 33 on its top. The real rotor 6 can be fixed to the top of the dummy rotor 3 by the rotor positioning pin 33. The rotor positioning pin 33 can further enhance the stability of the real rotor 6 during the assembly process, prevent the real rotor 6 from shifting position during the insertion of the magnet, ensure that the magnet 5 can be accurately inserted into the magnet slot of the real rotor 6, and improve the assembly quality. The real rotor 6 can be mounted on the dummy rotor 3, or it can be mounted on the bracket 1 and fixed relative to the dummy rotor 3.

[0028] As a preferred embodiment, the magnet channel 23 extends radially along the magnetic suction member 21 and extends to the outer edge of the magnet storage member 2. This design facilitates the insertion of five magnets into the magnet channel 23 from the outer edge of the magnet storage member 2.

[0029] As a preferred embodiment, the dummy rotor 3 and the magnet storage component 2 are detachably connected to the bracket 1. (Refer to...) Figure 4 The magnet storage component 2 has multiple connection holes 24. The bracket 1 has an annular step 11 for supporting the magnet storage component 2. The annular step 11 has connecting posts (not shown in the attached diagram) that match the connection holes 24. The magnet storage component 2 is stably installed on the bracket using screws or other methods. The dummy rotor 3 can be installed on the bracket 1 using screws, snap-fit ​​connections, or other methods, and can also be installed on the magnet storage component 2. The detachable connection method facilitates the replacement and maintenance of the dummy rotor 3 and the magnet storage component 2. When it is necessary to install magnets of corresponding specifications into rotors of different specifications, the dummy rotor 3 and the magnet storage component 2 can be replaced to adapt to the installation of the corresponding specifications of magnets. This improves the versatility of the device, enabling it to adapt to the assembly needs of various specifications of rotors and magnets, reducing the cost of repeated investment in the equipment, and enhancing the market competitiveness of the device.

[0030] As a preferred embodiment, the magnet pusher plate 44 is detachably connected to the output end of the drive component. Specifically, the drive component is a cylinder 41, and a connecting plate 42 is fixed to the output end of the cylinder 41. A fixing seat 43 is detachably connected to the connecting plate 42, and the magnet pusher plate 44 is mounted on the fixing seat 43. This detachable connection method makes the replacement and maintenance of the magnet pusher plate 44 more convenient and quick. When it is necessary to install magnets of corresponding specifications into rotors of different specifications, the magnet pusher plate 44 can be replaced to adapt to the installation of the corresponding specification magnets. The width of the magnet pusher plate 44 is adapted to the width of the magnet 5, thereby improving the stress on the magnet 5 and avoiding the problem of easy damage caused by stress concentration in the magnet 5 or the magnet pusher plate 44. At the same time, when the magnet pusher plate 44 is damaged or needs to be replaced, it is not necessary to disassemble the entire push assembly 4; only the damaged magnet pusher plate 44 needs to be replaced, which improves the maintenance efficiency of the device and reduces downtime.

[0031] The working process of the permanent magnet motor rotor magnet insertion device in this solution is as follows:

[0032] (1) Insert multiple strip-shaped magnets 5 into the magnet channels 23 on the magnet storage unit 2, so that the magnets 5 at the outlet of the magnet channel 23 are close to the magnetic suction unit 21. Install the dummy rotor 3 on the top of the magnet storage unit 2, so that each rotor magnet slot 31 of the dummy rotor 3 is aligned with each push plate through hole 22 on the magnet storage unit 2. Then install the real rotor 6 on the top of the dummy rotor 3, so that each rotor magnet slot of the real rotor 6 is aligned with each rotor magnet slot 31 of the dummy rotor 3.

[0033] (2) Start the push assembly 4. The magnet push plate 44 passes through the push plate through hole 22 and moves upward by the height of a magnet 5. Multiple magnet push plates 44 simultaneously push multiple magnets 5 into the rotor magnet slot 31 of the dummy rotor 3, so that a ring of magnets 5 is installed in the dummy rotor 3. Then the magnet push plate 44 retracts downward. At this time, the next magnet 5 in the magnet channel 23 is automatically moved forward by the magnetic attraction 21 to fill the empty space in the push plate through hole 22.

[0034] (3) Repeat step (2) again to push an additional layer of magnets 5 into the bottom of the dummy rotor 3 until the number of magnets 5 in the dummy rotor 3 is consistent with the number of magnets 5 required by the real rotor 6.

[0035] (4) Start the push assembly 4 to drive the magnet push plate 44 to move upward, push the multi-layer magnets 5 in the rotor magnet slot 31 of the dummy rotor 3 into the rotor magnet slot of the real rotor 6 in one go, and complete the insertion of all magnets 5 of a real rotor 6.

[0036] (5) After the real rotor 6 with the completed magnet assembly is removed from the device, the next real rotor 6 with the magnet to be assembled is replaced. During the interval between the removal and replacement of the real rotor 6, steps (2)-(4) can be carried out simultaneously, thereby saving production time and improving production efficiency.

[0037] The technical solution provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A permanent magnet motor rotor magnet insertion device, comprising a bracket, characterized in that, The support frame is equipped with a magnet storage component, a dummy rotor, and a driving assembly. The dummy rotor is located on top of the magnet storage component. The dummy rotor has multiple rotor magnet slots arranged in a ring. The rotor magnet slots extend longitudinally and are connected vertically. The pushing component is located at the bottom of the magnet storage component. The pushing component includes a plurality of magnet push plates arranged in a ring and a driving component for driving the magnet push plates to rise and fall. The magnetic steel storage component has a magnetic suction component in the middle. The magnetic steel storage component has multiple push plate through holes distributed around the magnetic suction component and allowing the magnetic steel push plates to pass through. The top surface of the magnetic steel storage component has multiple magnetic steel channels. The end of each magnetic steel channel is connected to each push plate through hole. Each rotor magnetic steel slot, each magnetic steel push plate, and each push plate through hole are aligned vertically.

2. The permanent magnet motor rotor magnet insertion device according to claim 1, characterized in that, The dummy rotor has a rotor shaft slot at its center.

3. The permanent magnet motor rotor magnet insertion device according to claim 1, characterized in that, The top of the dummy rotor is provided with a rotor positioning pin.

4. The permanent magnet motor rotor magnet insertion device according to claim 1, characterized in that, The magnetic channel extends radially along the magnetic suction member and penetrates to the outer edge of the magnetic storage member.

5. The permanent magnet motor rotor magnet insertion device according to claim 1, characterized in that, The dummy rotor and the magnet storage component are detachably connected to the bracket.

6. The permanent magnet motor rotor magnet insertion device according to claim 5, characterized in that, The magnet storage component has multiple connection holes, and the bracket has an annular step for supporting the magnet storage component. The annular step has a connecting post that matches the connection holes.

7. The permanent magnet motor rotor magnet insertion device according to claim 1, characterized in that, The magnetic push plate is detachably connected to the output end of the drive component.

8. The permanent magnet motor rotor magnet insertion device according to claim 7, characterized in that, The output end of the drive unit is fixed with a connecting plate, and a fixed base is detachably connected to the connecting plate. The magnet push plate is assembled on the fixed base.

9. The permanent magnet motor rotor magnet insertion device according to claim 1, characterized in that, The driving component is a cylinder.

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