A motor assembly magnet insertion apparatus and method of use thereof

Abstract

The application discloses a motor assembling and magnet inserting equipment and a using method thereof, and relates to the technical field of motor production. The equipment comprises a base, a connecting frame fixedly installed on the base, a first electric push rod fixedly installed on the connecting frame, a top plate fixedly installed on the output end of the first electric push rod, a material disc fixedly installed on the inner wall of the connecting frame, a sliding block slidingly installed on the material disc, a round block rotatably installed on the sliding block, a sliding rod fixedly installed on the sliding block, a convex rod fixedly installed on the bottom end of the sliding rod, and a rotating ring rotatably installed on the bottom end of the material disc. The round block is rotated to drive two side plates to move away from or close to each other through the inserting strip, so that the interval between the two side plates matches the length or width of the through hole. The rotating ring drives the sliding rod and the sliding block to move through the convex rod, thereby adjusting the position of the round block to adapt to different magnet inserting requirements of the rotor.

Description

Technical Field

[0001] This invention relates to the field of motor manufacturing technology, specifically to a motor assembly and magnet insertion device and its usage method. Background Technology

[0002] In recent years, with the rapid development of power electronics technology, microelectronics technology, new motor control theories, and rare-earth permanent magnet materials, permanent magnet synchronous motors have been rapidly promoted and applied. Compared with traditional electrically excited synchronous motors, permanent magnet synchronous motors have the advantages of lower losses, higher efficiency, and significant energy-saving effects. Permanent magnet synchronous motors use permanent magnets for excitation, which simplifies the motor structure, reduces processing and assembly costs, and eliminates the easily problematic slip rings and brushes, improving the reliability of motor operation. Furthermore, because no excitation current is required, there are no excitation losses, increasing the motor's efficiency and power density. Therefore, it is a type of motor that has been extensively researched in recent years and is increasingly widely used in various fields. A permanent magnet motor consists of a stator and a rotor, with magnets installed in the rotor's iron core. These magnets can be permanent magnets such as neodymium iron boron.

[0003] For example, the invention patent with publication number CN114094779B, entitled "A System for Inserting Magnets into a Motor Rotor," includes a workbench with two vertically arranged support plates fixedly connected to one side of its top. This invention, through the cooperation of movable plates, movable frames, and cylinders, facilitates the insertion of magnets into motor rotor bodies of different heights, expanding the application range of the motor rotor magnet insertion system. Furthermore, it eliminates the need to first cut the magnets and then install them inside the motor rotor body, preventing the cut magnets from falling onto the workbench and necessitating the shutdown of the system, thus reducing work efficiency. The cylinders can move the motor rotor body into the system, eliminating the need for manual insertion and improving worker health and safety.

[0004] In existing magnet insertion technology, some magnet insertion operations are performed using small magnet insertion devices as shown above. However, most magnet insertion devices have a significant problem: due to different rotor models, the position of the inserted magnets varies. Some magnets need to be inserted along the radial direction of the rotor, while others need to be inserted perpendicular to the radial direction of the rotor, which results in a narrow applicability of magnet insertion devices. Summary of the Invention

[0005] The purpose of this invention is to provide a motor assembly magnet insertion device and its usage method to overcome the above-mentioned shortcomings in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a motor assembly magnet insertion device, comprising a base, a connecting frame fixedly mounted on the base, a first electric push rod fixedly mounted on the connecting frame, a top plate fixedly mounted on the output end of the first electric push rod, a material tray fixedly mounted on the inner wall of the connecting frame, a slider slidably mounted on the material tray, a circular block rotatably mounted on the slider, a sliding rod fixedly mounted on the slider, a protruding rod fixedly mounted at the bottom end of the sliding rod, and a rotating ring rotatably mounted at the bottom end of the material tray; two side plates slidably mounted on the material tray; and an insert strip inserted into the side plate fixedly mounted on the circular block.

[0007] Preferably, the side plate has a groove, and the size of the groove is adapted to the size of the insert.

[0008] Preferably, the rotating ring has an arc-shaped groove, and the protruding rod passes through the arc-shaped groove.

[0009] Preferably, a pressure bar is fixedly installed at the bottom end of the top plate;

[0010] A placement frame is installed on the base, and a rotor is disposed inside the placement frame.

[0011] Preferably, a coating frame is fixedly installed at the bottom of the circular block. The coating frame is concave, and the inner walls of the concave coating frames facing each other are provided with a first outlet.

[0012] A bracket is fixedly installed on the material frame, a storage cylinder is fixedly installed on the bracket, a piston plate is slidably installed on the storage cylinder, a spring is fixedly installed between the piston plate and the top plate, and the storage cylinder and the application frame are connected by a flexible tube.

[0013] Preferably, the top and bottom ends of the application frame are chamfered, and a second outlet is provided at the chamfer at the bottom end of the application frame.

[0014] Preferably, a circular hole is provided at the center of the material tray, and a groove is provided on the inner wall of the circular hole.

[0015] Preferably, a limiting plate is installed on the material tray, and the limiting plate is positioned between the two side plates.

[0016] A method for using a motor assembly magnet insertion device includes the following steps:

[0017] S1. Place the rotor on the mounting rack and align it with the through hole on the round block;

[0018] S2. Start the hydraulic cylinder. The hydraulic cylinder will drive the rotor to rise until the rotor and the bottom of the material tray are in contact.

[0019] S3. Start the electric push rod. As the electric push rod descends, it will press down on the magnet located on the circular block through the pressure rod. At this time, the magnet will be pressed down and inserted into the rotor.

[0020] S4. After the magnetization is completed, activate the second electric push rod to push the remaining magnet material to fill the gap.

[0021] In the above technical solution, the present invention provides a motor assembly magnet insertion device and its usage method, which has the following beneficial effects: by rotating the circular block, it can drive the two side plates to move away from or towards each other through the insertion strip, so that the distance between the two side plates matches the length or width of the through hole. Rotating the rotating ring will drive the sliding rod and the slider to move through the protruding rod, thereby adjusting the position of the circular block to adapt to different rotor magnet insertion requirements. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0023] Figure 1 This is a three-dimensional structural schematic diagram provided for an embodiment of the present invention;

[0024] Figure 2 A schematic diagram of the bottom side structure of the material tray provided in an embodiment of the present invention;

[0025] Figure 3-4 These are partial structural schematic diagrams of the material trays provided in embodiments of the present invention;

[0026] Figure 5 This is a partial structural schematic diagram of the rotating ring provided in an embodiment of the present invention;

[0027] Figure 6 This is a partial structural diagram of a circular block provided in an embodiment of the present invention;

[0028] Figure 7 This is a partial structural diagram of the side plate provided in an embodiment of the present invention.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Base; 2. Connecting frame; 3. Electric push rod; 4. Placement rack; 5. Rotor; 61. Material tray; 62. Rotary ring; 63. Protruding rod; 64. Sliding rod; 65. Sliding block; 66. Round block; 66.1. Through hole; 67. Insert strip; 71. Limiting plate; 72. Side plate; 73. Groove; 81. Top plate; 82. Pressure rod; 83. Pipe groove; 84. Support; 85. Storage cylinder; 86. Piston plate; 91. Application frame; 92. First outlet; 93. Second outlet. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0032] Please see Figure 1-7 A motor assembly magnet insertion device and its usage method include a base 1, a connecting frame 2 fixedly installed on the base 1, a first electric push rod 3 fixedly installed on the connecting frame 2, a top plate 81 fixedly installed at the output end of the first electric push rod 3, a material tray 61 fixedly installed on the inner wall of the connecting frame 2, a slider 65 slidably installed on the material tray 61, a round block 66 rotatably installed on the slider 65, a sliding rod 64 fixedly installed on the slider 65, a protruding rod 63 fixedly installed at the bottom end of the sliding rod 64, and a rotating ring 62 rotatably installed at the bottom end of the material tray 61.

[0033] Two side plates 72 are slidably mounted on the material tray 61;

[0034] A strip 67, which is inserted into the side plate 72, is fixedly installed on the round block 66;

[0035] The rotating block 66 can drive the two side plates 72 to move away from or towards each other via the insert 67, so that the distance between the two side plates 72 matches the length or width of the through hole 66.1. The rotating ring 62 will drive the slide bar 64 and the slider 65 to move via the protruding rod 63, thereby adjusting the position of the block 66 to adapt to different rotors 5.

[0036] In another embodiment of the present invention: a groove 73 is provided on the side plate 72, and the size of the groove 73 is adapted to the size of the insert 67;

[0037] Two inserts 67 are mirror-image positioned from the center of the through hole 66.1, and are thus inserted into the grooves 73 of the two side plates 72 respectively. (Refer to...) Figure 6-7When the circular block 66 rotates, the two inserts 67 will move outward, thereby pushing the two side plates 72 to move away from each other, so that the two side plates 72 open until the through hole 66.1 in the protrusion 7 is in a vertical state. At this time, the distance between the two side plates 72 will match the length of the through hole 66.1 in the vertical state, so as to facilitate the placement of the magnet that is tangent to the rotor 5.

[0038] In another embodiment of the present invention: an arc-shaped groove is provided on the rotating ring 62, and the protruding rod 63 passes through the arc-shaped groove;

[0039] When the rotating ring 62 rotates, it drives the protruding rod 63 to move toward or away from the center of the rotating ring 62 through the arc groove. Both the rotating ring 62 and the slider 65 are provided with threaded holes, which can limit the movement between the rotating ring 62 and the material rack by screws, or limit the movement between the round block 66 and the slider 65 by screws.

[0040] In another embodiment of the present invention: a pressure rod 82 is fixedly installed at the bottom end of the top plate 81;

[0041] A mounting frame 4 is installed on the base 1, and a rotor 5 is installed inside the mounting frame 4;

[0042] The placement frame 4 and the base 1 are connected by a hydraulic cylinder. When the magnet insertion operation is required, the hydraulic cylinder on the base 1 is activated, causing the placement frame 4 to rise until it is close to the material tray 61. Then, the first electric push rod 3 on the connecting frame 2 is activated. At this time, the first electric push rod 3 on the connecting frame 2 will drive the top plate 81 to descend. As the top plate 81 descends, the pressure rod 82 on it will abut against the magnet located on the circular block 66 and push the magnet downward, so that the magnet is inserted into the rotor 5 through the through hole 66.1. The size of the pressure rod 82 is smaller than the size of the through hole 66.1, so that the pressure rod 82 can push the magnet completely into the rotor 5.

[0043] Among them, reference Figure 4 , Figure 4 In the current state, the through hole 66.1 is distributed radially along the material tray 61. When the circular block 66 rotates 90°, the through hole 66.1 will be perpendicular to the radial direction of the material tray 61. At this time, the spacing between the two side plates 72 after they move away from each other conforms to the length dimension of the through hole 66.1.

[0044] In another embodiment of the present invention: a coating frame 91 is fixedly installed at the bottom end of the circular block 66. The coating frame 91 is concave, and the inner walls of the concave coating frames 91 facing each other are provided with a first outlet 92.

[0045] A bracket 84 is fixedly installed on the material frame, a storage cylinder 85 is fixedly installed on the bracket 84, a piston plate 86 is slidably installed on the storage cylinder 85, a spring is fixedly installed between the piston plate 86 and the top plate 81, and the storage cylinder 85 and the application frame 91 are connected by a hose.

[0046] When inserting the magnet, the hydraulic cylinder on the base 1 will first push the rotor 5 to rise. As the rotor 5 rises, it will slowly approach the material tray 61 until it is in contact with the bottom of the material tray 61. At the same time, the first electric push rod 3 on the connecting frame 2 will be activated, which will drive the top plate 81 to fall. As the top plate 81 falls, it will drive the pressure rod 82 to push the magnet down and insert it into the rotor 5.

[0047] Existing magnet insertion equipment typically requires an adhesive applicator to apply adhesive to the rotor 5 before conveying the rotor 5 to the magnet insertion mechanism for insertion. This prolongs the entire magnet insertion process and is time-consuming. Furthermore, when applying adhesive, it is usually applied directly to the inside of the rotor 5. When the magnet is inserted into the rotor 5, the magnet will cause the adhesive inside the rotor 5 to move downwards and push to the bottom of the rotor 5, resulting in waste. In this application, the storage cylinder 85 stores adhesive. As the top plate 81 moves downwards, it will press down the piston plate 86 via a spring. The piston plate 86 then presses down the adhesive in the storage cylinder 85, allowing the adhesive to enter the applicator frame 91 through a hose. When the magnet falls from the through hole 66.1 on the round block 66, the first outlet 92 on the inner wall of the applicator frame 91 applies the adhesive to the magnet, thus completing the adhesive application.

[0048] In another embodiment of the present invention: the upper and lower ends of the application frame 91 are provided with chamfers, and the application frame 91 is provided with a second outlet 93 at the lower chamfer;

[0049] When the adhesive is applied to the magnet, as the magnet enters the rotor 5, some of the adhesive on the sidewall of the magnet will be scraped off the surface of the rotor 5 and remain on the surface of the rotor 5. At this time, since the bottom of the application frame 91 is in contact with the upper surface of the rotor 5, as the adhesive on the surface of the magnet is scraped off and remains on the surface, the remaining adhesive is located in the gap formed between the lower chamfer of the application frame 91 and the rotor 5. After the magnet insertion is completed, as the top plate 81 moves upward, it will pull the piston plate 86 upward through the spring. At this time, the piston plate 86 will absorb the adhesive, and the adhesive remaining below the second outlet 93 will also be absorbed by the second outlet 93 for recycling.

[0050] Furthermore, the coating frame 91 is "U"-shaped, and the inner wall size of the "U"-shaped coating frame 91 matches the size of the through hole 66.1. When the magnet descends into the coating frame 91, the gap formed between the lower chamfer of the coating frame 91 and the magnet will be relatively closed. At this time, the residual adhesive will continuously accumulate in the triangular gap formed by the lower chamfer of the coating frame 91 and the rotor 5. If too much adhesive accumulates, it will flow back into the coating frame 91 through the second outlet 93. At this time, the first outlet 92 is located above the second outlet 93. With the return of the adhesive, it can be sprayed out again through the first outlet 92 for direct reuse.

[0051] In another embodiment of the present invention: a circular hole is provided at the center of the material tray 61, and a tube groove 83 is provided on the inner wall of the circular hole;

[0052] The tube groove 83 allows the flexible tube to pass through and be fixed, while the round hole allows the protruding part of the rotor 5 to pass through for easy magnet insertion. When the flexible tube passes through the tube groove 83 and is fixed, it can avoid being squeezed by the protruding part of the rotor 5.

[0053] In another embodiment of the present invention: a limiting plate 71 is installed on the material tray 61, and the limiting plate 71 is disposed between two side plates 72;

[0054] When a magnetic material is placed between the two side plates 72, as the magnetic material approaches the limiting plate 71, the magnetic material will be aligned with the through hole 66.1, so that the pressure rod 82 can press down on the magnetic material.

[0055] Furthermore, the limiting plate 71 is L-shaped and is slidably mounted on the material tray 61. When the round block 66 rotates, the position of the through hole 66.1 will change. At this time, the limiting plate 71 can be slid close to the through hole 66.1 to limit the movement. The limiting plate 71 is also equipped with screws. By tightening and loosening the screws, the limiting plate 71 can be moved and fixed.

[0056] A ring is fixedly installed at the bottom of the top plate 81, and the pressure rod 82 is threaded onto the ring. Furthermore, the size of the ring is larger than that of the top plate 81, and it is provided with several threaded holes, so that the pressure rod 82 can be installed at different positions on the ring to adapt to the position of the through hole 66.1 after the rotation and sliding of the circular block 66, so that the pressure rod 82 can press down on the magnet in the through hole 66.1.

[0057] Furthermore, a horizontally placed second electric push rod 3 is fixedly installed on the material tray 61, and the second electric push rod 3 is located between the two side plates 72 in the same group. The second electric push rod 3 facilitates the movement of the magnet within the two side plates 72.

[0058] A method for using a motor assembly magnet insertion device includes the following steps:

[0059] S1. Place the rotor 5 on the mounting frame 4 and align it with the through hole 66.1 on the round block 66;

[0060] S2. Start the hydraulic cylinder. The hydraulic cylinder will drive the rotor 5 to rise until the rotor 5 and the bottom of the material tray 61 are in contact.

[0061] S3. Start the electric push rod 3. As the electric push rod 3 descends, it will press down the magnet located on the circular block 66 through the pressure rod 82. At this time, the magnet will be pressed down and inserted into the rotor 5.

[0062] S4. After the magnetization is completed, the second electric push rod 3 is activated to push the remaining magnet material to fill the gap.

[0063] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A motor assembly magnet insertion device, comprising a base (1), a connecting frame (2) fixedly mounted on the base (1), a first electric push rod (3) fixedly mounted on the connecting frame (2), and a top plate (81) fixedly mounted on the output end of the first electric push rod (3), characterized in that, A material tray (61) is fixedly installed on the inner wall of the connecting frame (2). A slider (65) is slidably installed on the material tray (61). A round block (66) is rotatably installed on the slider (65). A sliding rod (64) is fixedly installed on the slider (65). A protruding rod (63) is fixedly installed at the bottom end of the sliding rod (64). A rotating ring (62) is rotatably installed at the bottom end of the material tray (61). Two side plates (72) are slidably mounted on the material tray (61); A strip (67) is fixedly installed on the circular block (66) and inserted into the side plate (72); The rotating ring (62) has an arc-shaped groove, and the protruding rod (63) passes through the arc-shaped groove.

2. The motor assembly and magnet insertion device according to claim 1, characterized in that, The side plate (72) has a groove (73) and the size of the groove (73) is compatible with the size of the insert (67).

3. The motor assembly and magnet insertion device according to claim 1, characterized in that, A pressure bar (82) is fixedly installed at the bottom end of the top plate (81); A placement frame (4) is installed on the base (1), and a rotor (5) is disposed inside the placement frame (4).

4. The motor assembly and magnet insertion device according to claim 1, characterized in that, The bottom end of the circular block (66) is fixedly installed with an application frame (91). The application frame (91) is concave, and the inner walls of the concave application frames (91) facing each other are provided with a first outlet (92). A bracket (84) is fixedly installed on the material tray (61), a storage cylinder (85) is fixedly installed on the bracket (84), a piston plate (86) is slidably installed on the storage cylinder (85), a spring is fixedly installed between the piston plate (86) and the top plate (81), and the storage cylinder (85) and the application frame (91) are connected by a hose.

5. A motor assembly and magnet insertion device according to claim 4, characterized in that, The top and bottom ends of the application frame (91) are chamfered, and a second outlet (93) is provided at the bottom chamfer of the application frame (91).

6. The motor assembly and magnet insertion device according to claim 5, characterized in that, A circular hole is provided at the center of the material tray (61), and a groove (83) is provided on the inner wall of the circular hole.

7. A motor assembly and magnet insertion device according to claim 6, characterized in that, A limiting plate (71) is installed on the material tray (61), and the limiting plate (71) is located between the two side plates (72).

8. A method of using a motor assembly magnet insertion device, applicable to the magnet insertion device according to any one of claims 1-7, characterized in that, Includes the following steps: S1. Place the rotor (5) on the mounting bracket (4) and align it with the through hole (66.1) on the round block (66); S2. Start the hydraulic cylinder. The hydraulic cylinder will drive the rotor (5) to rise until the bottom of the rotor (5) and the material tray (61) are in contact. S3. Start the electric push rod (3). As the electric push rod (3) descends, it will press down the magnet located on the round block (66) through the pressure rod (82). At this time, the magnet will be pressed down and inserted into the rotor (5). S4. After the magnetization is completed, start the second electric push rod (3) to push the remaining magnet material to fill the gap.

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