High-precision positioning and assembling device and method for neodymium-iron-boron permanent magnet assembly

Abstract

The invention relates to the technical field of motor assembly machining equipment, in particular to a high-precision positioning and assembling device and method.The high-precision positioning and assembling device comprises a machine table, a rotor positioning mechanism and a material taking mechanism, and the rotor positioning mechanism and the material taking mechanism are arranged on the machine table; the rotary assembling mechanism and the stock bin are arranged on the two sides of the rotor positioning mechanism, the rotary assembling mechanism comprises a rotary base and a connecting pipe fixed to the rotary base, a telescopic vacuum suction cup is arranged at one end of the connecting pipe, and a gluing gun head is arranged at the end, close to the vacuum suction cup, of the connecting pipe; when the rotating base rotates, the gluing gun head is driven to ascend and descend through the transmission structure, the stock bin comprises a storage groove and can separate out single magnetic shoes, and the rotating assembling mechanism synchronously completes gluing and pasting of the magnetic shoes in the single rotating action. And due to the integrated process, glue pollution or position deviation caused by splitting of gluing and positioning procedures in a traditional production line is avoided.

Description

Technical Field

[0001] This invention relates to the field of motor component processing equipment technology, specifically to a high-precision positioning and assembly device and method for neodymium iron boron permanent magnet components. Background Technology

[0002] Neodymium iron boron (NdFeB) permanent magnets are widely used in high-tech fields such as electric vehicle drive motors, wind turbines, precision instruments, and medical equipment due to their high energy product, strong coercivity, and excellent temperature stability. In these applications, permanent magnet assemblies typically consist of multiple magnetic blocks or rings, requiring precise positioning and assembly to ensure magnetic circuit symmetry, magnetic field uniformity, and overall performance. Typically, motor rotors are composed of permanent magnets with a certain number of pole pairs embedded in or within the iron core. These permanent magnets are also known as magnetic tiles. During motor rotor assembly, misalignment of the magnets can lead to decreased efficiency, increased noise, or component failure.

[0003] In the existing technology, the rotor positioning mechanism of existing equipment usually adopts a simple fixed clamp, which is prone to errors in processing, resulting in uneven magnetic field distribution and unstable performance of the assembled components. At the same time, the strong magnetism and fragility of neodymium iron boron permanent magnets make them prone to damage during material handling and mounting. Furthermore, in existing processing equipment, the glue application process is separated from the material handling and positioning process. Existing production lines require an independent station to complete the glue application, but glue contamination or positional displacement can easily occur during the transfer of permanent magnets. Summary of the Invention

[0004] In order to overcome the problems existing in the prior art, the purpose of this invention is to provide a high-precision positioning and assembly device and method for neodymium iron boron permanent magnet components. The device uses a positioning mechanism to complete the positioning of the rotor, while the rotating assembly mechanism can simultaneously complete the gluing and mounting of the magnet tiles in a single rotation, thereby avoiding glue contamination or positional displacement caused by the separation of gluing and positioning processes in traditional production lines.

[0005] The objective of this invention is achieved through the following technical solution: a high-precision positioning and assembly device for neodymium iron boron permanent magnet components, comprising a machine base, a rotor positioning mechanism and a material handling mechanism mounted on the machine base, wherein the rotor positioning mechanism includes a positioning seat for clamping the rotor, and further includes a rotating assembly mechanism and a hopper mounted on both sides of the rotor positioning mechanism, wherein the rotating assembly mechanism includes a rotating base and a connecting pipe fixed on the rotating base, wherein one end of the connecting pipe is provided with a retractable vacuum suction cup, and the end of the connecting pipe near the vacuum suction cup is provided with a glue application gun head, wherein the rotating base rotates and drives the glue application gun head to rise and fall through a transmission structure, and the hopper includes a storage tank and can separate individual magnetic tiles.

[0006] Preferably, the rotor positioning mechanism further includes a U-shaped frame, a fixed cylinder fixed on the U-shaped frame, and a lifting plate connected to the output end of the fixed cylinder. The lifting plate is provided with an upper fixed tube, and the positioning seat is provided with a rotating positioning table.

[0007] By adopting the above technical solution, the U-shaped frame, together with the fixed cylinder driving the lifting plate, and the rotary positioning table constrains the rotor, the rotation control of the rotor during the clamping process can be realized, ensuring the accuracy of the magnetic tile mounting angle.

[0008] Preferably, the material handling mechanism includes a mounting frame, a lifting cylinder, and a pneumatic gripper. The mounting frame is fixed to an electric turntable, the electric turntable is fixed to a machine base, the pneumatic gripper is connected to the output end of the lifting cylinder, and conveyor belts are provided on both sides of the material handling mechanism.

[0009] Furthermore, the pneumatic gripper can open and close 180°, and its claw teeth are L-shaped.

[0010] By adopting the above technical solution, the electric turntable can drive the mounting frame to work together with the lifting cylinder and the pneumatic gripper to achieve multi-angle adaptive gripping of the rotor from the conveyor belt to the rotor station. At the same time, the L-shaped claw can better grip the rotor from the bottom of the rotor and remove the rotor from the rotor positioning mechanism.

[0011] Preferably, the rotary assembly mechanism further includes a material-picking cylinder and a mounting box. The material-picking cylinder is disposed inside the connecting pipe and its output end can extend out along one end of the connecting pipe. The connecting pipe has a through groove extending into its interior. The mounting box is fixed on the rotating base and is used to accommodate the transmission structure.

[0012] By adopting the above technical solution, the material handling cylinder is built into the connecting pipe and extends to the vacuum suction cup. The structure of the through groove realizes the space reuse of the air passage and mechanical transmission, which can reduce the axial dimension of the rotating component and adapt to high-precision assembly scenarios in narrow spaces.

[0013] Preferably, it also includes a pneumatic slide table, which is mirror-arranged on both sides of the rotor positioning mechanism and includes a translation cylinder and a sliding seat. An internal gear ring and an adhesive application assembly are fixed on the sliding seat, and the rotating base is a cover structure and is rotatably connected to the sliding seat.

[0014] Furthermore, the transmission structure includes a first gear, a bevel gear set, and a second gear. The first gear is rotatably connected to the bottom of the rotating base and meshes with an internal gear ring. The first gear is coaxially connected to a bevel gear in the bevel gear set. The bevel gear set transmits power to the rotating shaft, and the second gear is fixed at both ends of the rotating shaft.

[0015] Furthermore, it also includes a connecting frame, which includes optical axes vertically arranged on both sides, L-shaped blocks slidably connected on the optical axes, racks on the L-shaped blocks and meshing with a second gear, the glue gun head connected to a connecting rod, and the two ends of the connecting rod respectively fixed to the sides of the two L-shaped blocks.

[0016] By adopting the above technical solution, the first gear meshes with the internal gear ring to drive the bevel gear set, which converts the horizontal rotation into vertical shaft motion. Then, the second gear achieves symmetrical output to the L-shaped block on both sides. At the same time, the optical shaft guides the L-shaped block to slide in the vertical direction. The meshing of the rack and the second gear enables the glue gun head to rise and fall. Furthermore, the rigid connection of the connecting rod to the two L-shaped blocks can further eliminate unilateral force deformation and ensure the straightness of the glue application trajectory.

[0017] Preferably, the hopper further includes a separation box, a pushing cylinder, a push rod, and a separation block. The push rod is horizontally arranged in the storage tank and fixedly connected to the output end of the pushing cylinder. The separation box and the separation block are both arranged at the end of the storage tank, and the separation block is connected to the pushing cylinder.

[0018] By adopting the above technical solution, the push rod can horizontally push the magnetic tile in the storage tank, and the separation block and separation box form a stepped barrier structure. The physical isolation of the magnetic tile and single-piece output are achieved through a single pushing action.

[0019] A high-precision positioning and assembly method for a neodymium iron boron permanent magnet assembly includes the following steps:

[0020] S1: Start the material handling mechanism to transfer the rotor to be assembled to the positioning seat of the rotor positioning mechanism, and the rotor positioning mechanism completes the clamping.

[0021] S2: Control the hopper to separate the single magnetic tile from the storage tank, and the vacuum suction cup of the rotating assembly mechanism will extend and retract to pick up the separated single magnetic tile.

[0022] S3: Drive the rotating base to rotate and align the single magnetic tile with the rotor. At the same time, the glue gun head is raised and lowered through the transmission structure during rotation to apply glue to the surface of the magnetic tile.

[0023] S4: The vacuum chuck extends to attach the glued magnetic tile to the predetermined position on the rotor, and the vacuum chuck is released to complete the single-piece assembly;

[0024] S5: Repeat steps S2 to S4 until all magnet tiles are assembled, and then transfer the processed individual rotors through the material handling mechanism.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. This device can clamp and dynamically adjust the rotor through the rotor positioning mechanism. It works with the positioning seat to position the rotor and ensure that the rotor remains fixed with high rigidity during assembly. It is especially suitable for neodymium iron boron permanent magnet components with strict requirements for magnetic circuit symmetry, and ultimately improves the overall performance and reliability of the motor rotor.

[0027] 2. The rotary assembly mechanism enables simultaneous application of adhesive and mounting of magnetic tiles in a single rotation. When the rotating base drives the connecting tube to the rotor position, the built-in transmission structure automatically controls the lifting and lowering of the adhesive gun head, directly applying adhesive to the surface of the magnetic tile picked up by the vacuum suction cup. This integrated process avoids adhesive contamination or positional misalignment caused by the separation of adhesive application and positioning processes in traditional production lines. Attached Figure Description

[0028] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0029] In the attached diagram:

[0030] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the rotor positioning mechanism of the present invention;

[0032] Figure 3 This is a schematic diagram of the material handling mechanism of the present invention;

[0033] Figure 4 for Figure 1 Enlarged view of the local structure at point A;

[0034] Figure 5 This is a schematic diagram of the structure of the pneumatic slide table of the present invention;

[0035] Figure 6 This is a schematic diagram of the rotating assembly mechanism of the present invention (view 1);

[0036] Figure 7 This is a schematic diagram of the rotating assembly mechanism of the present invention (perspective two);

[0037] Figure 8 This is a schematic diagram of the connecting frame of the present invention;

[0038] Figure 9 This is a schematic diagram of the transmission structure of the rotary assembly mechanism of the present invention;

[0039] Figure 10 This is a schematic diagram of the structure of the silo of the present invention;

[0040] Figure 11This is a cross-sectional structural diagram of the silo of the present invention.

[0041] The reference numerals in the accompanying drawings include:

[0042] 1-Machine base; 2-Rotor positioning mechanism; 21-U-shaped frame; 22-Fixed cylinder; 23-Lifting plate; 231-Upper fixed pipe; 24-Positioning seat; 241-Rotating positioning table; 3-Material handling mechanism; 31-Mounting frame; 32-Electric turntable; 33-Lifting cylinder; 34-Pneumatic gripper; 341-L-shaped claw; 4-Pneumatic slide table; 41-Transfer cylinder; 42-Sliding seat; 421-Internal gear ring; 422-Glue application assembly; 5-Conveyor belt; 6-Rotating assembly mechanism; 61 - Rotating base, 62- Connecting pipe, 621- Through groove, 63- Material picking cylinder, 64- Vacuum suction cup, 65- Mounting box, 7- Transmission structure, 71- First gear, 72- Bevel gear set, 73- Second gear, 731- Rotating shaft, 8- Connecting frame, 81- Optical shaft, 82- L-shaped block, 821- Rack, 83- Connecting rod, 831- Glue gun head, 9- Material bin, 91- Storage tank, 92- Separation box, 93- Pushing cylinder, 94- Push rod, 95- Separation block. Detailed Implementation

[0043] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to embodiments. Obviously, the described embodiments are only some embodiments of the present invention, 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 scope of protection of the present invention.

[0044] The present invention will be further explained below with reference to specific embodiments:

[0045] See Figure 1 A high-precision positioning and assembly device for neodymium iron boron permanent magnet components includes a machine base 1, on which a rotor positioning mechanism 2, a material handling mechanism 3, and a pneumatic slide table 4 are fixed.

[0046] Among them, see Figure 1-2The rotor positioning mechanism 2 is located in the middle of the machine base 1. It includes a U-shaped frame 21 with its opening facing the rotor to be processed. The U-shaped frame 21 is fixed to the table surface of the machine base 1 by bolts. A fixing cylinder 22 is fixed on the top of the U-shaped frame 21. The output end of the fixing cylinder 22 is vertically downward and connected to a lifting plate 23 by threads. The two sides of the lifting plate 23 are also slidably connected to two symmetrically arranged limit rods. The bottom center of the lifting plate 23 is rotatably connected to an upper fixing tube 231 via a bearing (not shown). The upper fixing tube 231 is a vertical round tube used to insert the shaft of the rotor to be processed. A positioning seat 24 is fixed to the table surface of the machine base 1 near the U-shaped frame 21 by bolts. A rotating positioning table 241 is rotatably connected to the top of the positioning seat 24 via a bearing (not shown). The rotating positioning table is controlled to rotate by a motor (not shown) inside the positioning seat 24. The rotating positioning table 241 and the upper fixing tube 231 are coaxially arranged, and the two work together to achieve the clamping and rotational positioning of the rotor.

[0047] Among them, see Figure 1 and Figure 3 The material handling mechanism 3 is located adjacent to the rotor positioning mechanism 2. The opening of the U-shaped frame 21 of the rotor positioning mechanism 2 faces the material handling mechanism 3. The material handling mechanism 3 includes an electric turntable 32, which is fixed to the table surface of the machine base 1 by bolts. A mounting frame 31 is fixed to the rotating end of the electric turntable 32, and the mounting frame 31 is an L-shaped metal frame. A mounting plate is provided at the top of the vertical part of the mounting frame 31, and a lifting cylinder 33 is fixed on the mounting plate. The output end of the lifting cylinder 33 is vertically downward and fixedly connected to the top of the connecting seat. A pneumatic gripper 34 is provided on the connecting seat, and the connecting seat is slidably connected to the vertical part of the mounting frame 31 through a sliding table structure. The pneumatic gripper 34 is a pneumatic gripper that can open and close 180°, and its teeth are L-shaped teeth 341, with the horizontal part of the L-shaped teeth 341 facing inward. Conveyor belts 5 are provided on both sides of the material handling mechanism 3. The conveyor belts 5 are existing belt conveyor mechanisms, one side is used to transport the rotor to be processed, and the other side is used to transport the processed rotor.

[0048] Among them, see Figure 1 and Figure 5Two pneumatic slides 4 are mirror-mounted on both sides of the rotor positioning mechanism 2. Each slide includes a translation cylinder 41, which is horizontally mounted on a support frame of the pneumatic slide 4. The support frame is bolted to the machine base 1. The output end of the translation cylinder 41 faces the rotor positioning mechanism 2 horizontally. A sliding seat 42 is bolted to the slide block of the translation cylinder 41. An internal gear ring 421, a ring gear, is fixed to the front surface of the sliding seat 42 and is parallel to the front surface of the sliding seat 42. A rotary motor (not shown) is built into the sliding seat 42. The output shaft of the rotary motor passes through the front surface of the sliding seat 42 and is located at the center of the internal gear ring 421. The output shaft is fixedly connected to a connecting post at the center of the bottom of the rotating base 61. The rotating base 61 is a cover structure with its opening facing downwards and covering the outside of the internal gear ring 421. A glue application assembly 422 is also fixed on the top of the sliding seat 42. The glue application assembly 422 includes a glue pressure tank and a glue application solenoid valve.

[0049] Among them, see Figure 5-7 The rotating assembly mechanism 6 also includes a connecting pipe 62, which is a horizontal circular tube with its outer surface fixed to the surface of the rotating base 61. A material-picking cylinder 63 is horizontally installed inside the connecting pipe 62. The output end of the material-picking cylinder 63 extends along the axis of the connecting pipe 62 and passes through the opening at the other end of the connecting pipe 62. A vacuum suction cup 64 is fixedly connected to the output end of the material-picking cylinder 63. The vacuum suction cup 64 can move along the axis of the connecting pipe 62 as the material-picking cylinder 63 extends and retracts. Since the stroke of the material-picking cylinder 63 is relatively small, the insufficient stroke can be compensated for by the pneumatic slide table 4 during operation. A through groove 621 is provided on the outer surface of the connecting pipe 62 near the vacuum suction cup 64, extending into its interior. The through groove 621 is elongated, and the vacuum suction cup 64 is connected to a vacuum generator (not shown) via a flexible hose, which extends out through the through groove 621. A mounting box 65 is fixed on the rotating base 61. The mounting box 65 is a closed metal box that houses the transmission structure 7.

[0050] Among them, see Figure 6 and Figure 9 , Figure 9Only the main transmission components are shown. The transmission structure 7 includes a first gear 71, which is fixedly mounted on one end of a first rotating shaft. A first bevel gear is fixed to the other end of the first rotating shaft. The middle part of the first rotating shaft is rotatably connected to the rotating base 61 via a bearing, so that the first gear 71 is located at the bottom of the rotating base 61 and the first bevel gear is located inside the mounting box 65. The first bevel gear meshes with a second bevel gear. The second bevel gear is fixed to one end of a second rotating shaft. A third bevel gear is fixed to the other end of the second rotating shaft. The second rotating shaft is rotatably mounted inside the mounting box 65 via a bearing. The second rotating shaft is parallel to the connecting pipe 62 and extends to the hollow protrusion at the front end of the connecting pipe 62. The third bevel gear meshes with a fourth bevel gear. Both the third and fourth bevel gears are located inside the hollow protrusion, and the fourth bevel gear is fixed to the middle part of the rotating shaft 731. The rotating shaft 731 is horizontally mounted inside the lower end of the hollow protrusion. Both ends of the rotating shaft 731 pass through and extend to the two sides of the hollow protrusion, and a second gear 73 is fixed at the extended end. Both the first gear 71 and the second gear 73 are spur gears.

[0051] Among them, see Figure 6-8 The rotating assembly mechanism 6 also includes a connecting frame 8, which is bolted to one end of the connecting tube 62 near the vacuum suction cup 64, i.e., the hollow protrusion. An optical axis 81 is vertically fixed to its two inner sides. The optical axis 81 is a vertical round shaft, and an L-shaped block 82 is slidably connected to it. The horizontal portion of the L-shaped block 82 has a sliding hole that mates with the optical axis 81, and the vertical portion is parallel to the optical axis 81. The length of the optical axis 81 and the transmission ratio of the transmission mechanism 7 ensure that the L-shaped block 82 does not interfere with the extended or retracted vacuum suction cup 64 when it rises to the top or falls to the bottom of the optical axis 81. A rack 821 is integrally formed on the outer side of the vertical part of the L-shaped block 82. The rack 821 meshes with the second gear 73. A connecting rod 83 is fixed between the sides of the horizontal parts of the two L-shaped blocks 82. The connecting rod 83 is a horizontal round rod. The rod part is fixed with a glue gun head 831 through a slot structure. The glue gun head 831 faces the side of the vacuum suction cup 64. The glue gun head 831 is connected to the glue pressure tank through a hose.

[0052] Among them, see Figure 1 , Figure 10-11A hopper 9 is provided on the side of the rotor positioning mechanism 2 away from the material handling mechanism 3. The hopper 9 is fixed to the machine base 1 by a support frame. It includes a storage tank 91, which is a horizontally arranged elongated tank for storing horizontally stacked magnetic tiles. A pusher cylinder 93 is fixed at the bottom of the hopper 9. The output end of the pusher cylinder 93 is connected to a push rod 94 through a connecting block. The push rod 94 is located inside the storage tank 91 and slides with one end of the storage tank 91. A push block is provided at the end of the push rod 94, which slides with the inner wall of the storage tank 91. A separation box 92 is fixed above the other end of the storage tank 91. The separation box 92 has an arc-shaped through slot communicating with the storage tank 91 and a front opening for accommodating the vacuum suction cup 64. A separation groove is provided at the bottom of the storage tank 91 (where the separation box 92 is located) to accommodate the extension of the separation block 95. The separation block 95 is fixedly connected to the output end of the push cylinder (not shown in the figure), and the magnetic tile can be separated by pushing the cylinder to extend and retract.

[0053] In this embodiment, the conveyor belt 5 transports the rotor to be processed, and then the material handling mechanism 3 transfers the rotor to be processed onto the rotating positioning table 241 of the rotor positioning mechanism 2. The fixing cylinder 22 drives the lifting plate 23 to descend, so that the upper fixing tube 231 cooperates with the rotating positioning table 241 to clamp the rotor. The hopper 9 pushes the push rod 94 through the pushing cylinder 93, which cooperates with the separating block 95 to separate the single magnetic tile into the separating box 92. The vacuum suction cup 64 of the rotating assembly mechanism 6 extends under the drive of the material handling cylinder 63, picks up the magnetic tile and then retracts. The rotating base 61 rotates clockwise, driving the connecting tube 62 and the magnetic tile to rotate toward the rotor. At the same time, the first gear 71 rotates with the rotating base 61 and meshes with the internal gear ring 421, driving the bevel gear set 72 and the rotating shaft 731 to rotate. The second gear 73 drives the rack 821 and the L-shaped block 82 to rise and fall along the optical axis 81. During the process, the glue application solenoid valve controls the glue pressure tank, and then the glue application gun head 831 applies glue to the surface of the magnetic tile through the connecting hose. After rotation into position, the vacuum suction cup 64 extends to attach the glued magnetic tile to the rotor, completing the single-piece assembly. After repeating the above steps to complete the assembly of all magnetic tiles, the material handling mechanism 3 transfers the assembled rotor to the conveyor belt 5.

[0054] The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present invention shall be considered equivalent substitutions and shall be included within the protection scope of the present invention.

Claims

1. A high-precision positioning and assembly device for neodymium iron boron permanent magnet components, characterized in that: It includes a machine base (1), a rotor positioning mechanism (2) and a material handling mechanism (3) mounted on the machine base (1), wherein the rotor positioning mechanism (2) includes a positioning seat (24) for clamping the rotor; It also includes a rotating assembly mechanism (6) and a hopper (9) set on both sides of the rotor positioning mechanism (2). The rotating assembly mechanism (6) includes a rotating base (61) and a connecting pipe (62) fixed on the rotating base (61). One end of the connecting pipe (62) is provided with a retractable vacuum suction cup (64). The end of the connecting pipe (62) near the vacuum suction cup (64) is provided with a glue gun head (831). When the rotating base (61) rotates, the glue gun head (831) is driven to rise and fall through the transmission structure (7). The hopper (9) includes a storage tank (91) and can separate a single magnetic tile.

2. The high-precision positioning and assembly device for a neodymium iron boron permanent magnet assembly according to claim 1, characterized in that: The rotor positioning mechanism (2) further includes a U-shaped frame (21), a fixed cylinder (22) fixed on the U-shaped frame (21), and a lifting plate (23) connected to the output end of the fixed cylinder (22). The lifting plate (23) is provided with an upper fixed tube (231), and the positioning seat (24) is provided with a rotating positioning table (241).

3. The high-precision positioning and assembly device for a neodymium iron boron permanent magnet assembly according to claim 1, characterized in that: The material handling mechanism (3) includes a mounting frame (31), a lifting cylinder (33) and a gripper (34). The mounting frame (31) is fixed on an electric turntable (32), which is fixed on a machine base (1). The gripper (34) is connected to the output end of the lifting cylinder (33). Conveyor belts (5) are provided on both sides of the material handling mechanism (3).

4. The high-precision positioning and assembly device for a neodymium iron boron permanent magnet assembly according to claim 1, characterized in that: The rotary assembly mechanism (6) further includes a material picking cylinder (63) and a mounting box (65). The material picking cylinder (63) is located inside the connecting pipe (62) and its output end can extend out along one end of the connecting pipe (62). The connecting pipe (62) has a through groove (621) that extends into its interior. The mounting box (65) is fixed on the rotating base (61) and is used to accommodate the transmission structure (7).

5. The high-precision positioning and assembly device for a neodymium iron boron permanent magnet assembly according to claim 1, characterized in that: It also includes a pneumatic slide (4), which is mirror-arranged on both sides of the rotor positioning mechanism (2), including a translation cylinder (41) and a sliding seat (42). An internal gear ring (421) and an adhesive application assembly (422) are fixed on the sliding seat (42). The rotating base (61) is a cover structure and is rotatably connected to the sliding seat (42).

6. The high-precision positioning and assembly device for a neodymium iron boron permanent magnet assembly according to claim 5, characterized in that: The transmission structure (7) includes a first gear (71), a bevel gear set (72), and a second gear (73). The first gear (71) is rotatably connected to the bottom of the rotating base (61) and meshes with the internal gear ring (421). The first gear (71) is coaxially connected to a bevel gear in the bevel gear set (72). The bevel gear set (72) transmits power to the rotating shaft (731). The two ends of the rotating shaft (731) are fixed with the second gear (73).

7. The high-precision positioning and assembly device for a neodymium iron boron permanent magnet assembly according to claim 6, characterized in that: It also includes a connecting frame (8), which includes optical axes (81) vertically arranged on both sides, an L-shaped block (82) slidably connected on the optical axis (81), a rack (821) arranged on the L-shaped block (82) and meshing with a second gear (73), and a glue gun head (831) connected to a connecting rod (83), with both ends of the connecting rod (83) fixed to the sides of the two L-shaped blocks (82).

8. The high-precision positioning and assembly device for a neodymium iron boron permanent magnet assembly according to claim 1, characterized in that: The hopper (9) also includes a separation box (92), a pushing cylinder (93), a push rod (94), and a separation block (95). The push rod (94) is horizontally arranged in the storage tank (91) and fixedly connected to the output end of the pushing cylinder (93). The separation box (92) and the separation block (95) are both located at the end of the storage tank (91). The separation block (95) is connected to the pushing cylinder.

9. The high-precision positioning and assembly device for a neodymium iron boron permanent magnet assembly according to claim 3, characterized in that: The pneumatic gripper (34) can open and close 180°, and its claw teeth are L-shaped claw teeth (341).

10. A high-precision positioning and assembly method for a neodymium iron boron permanent magnet assembly, utilizing a high-precision positioning and assembly device for a neodymium iron boron permanent magnet assembly as described in any one of claims 1-9, characterized in that, Includes the following steps: S1: Start the material handling mechanism (3) to transfer the rotor to be assembled to the positioning seat (24) of the rotor positioning mechanism (2), and the rotor positioning mechanism (2) completes the clamping; S2: Control the hopper (9) to separate the single magnetic tile from the storage tank (91), and the vacuum suction cup (64) of the rotary assembly mechanism (6) extends and retracts to pick up the separated single magnetic tile; S3: Drive the rotating base (61) to rotate and align the single magnetic tile with the rotor. At the same time, the glue gun head (831) is raised and lowered through the transmission structure (7) during rotation to apply glue to the surface of the magnetic tile. S4: The vacuum chuck (64) extends to attach the glued magnetic tile to the predetermined position of the rotor, and the vacuum chuck (64) is released to complete the single-piece assembly; S5: Repeat steps S2 to S4 until all the magnetic tiles are assembled, and then transfer the processed individual rotor through the material handling mechanism (3).

Images