A method of assembling an electric motor rotor

Abstract

The application discloses a motor rotor assembling method, which comprises the following steps: S1, placing the required permanent magnet piece to be installed into a magnetic piece slot, and then placing a rotor magnetic yoke on an installation table of a second feeding assembly; S2, controlling a glue injection push rod in a glue coating assembly to extend into an installation groove of the rotor magnetic yoke, and simultaneously controlling the glue injection push rod to reciprocate in the installation groove of the rotor magnetic yoke to uniformly apply glue; S3, controlling the glue coating assembly to cooperate with a first feeding assembly to insert the permanent magnet piece into the installation groove of the rotor magnetic yoke; S4, controlling a glue cleaning assembly to scrape off the glue squeezed out by the permanent magnet piece from the bottom surface of the rotor magnetic yoke; and S5, when the glue cleaning is completed, controlling the installation table in the second feeding assembly to move downwards, and workers take down the assembled rotor magnetic yoke; the motor rotor assembling method is simple in operation and can efficiently realize the assembling of the motor rotor.

Description

Technical Field

[0001] This invention relates to the field of motor technology, and in particular to a method for assembling a motor rotor. Background Technology

[0002] An electric motor is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. It includes a stator and a rotor. In the current technology, the stator is composed of coils, while the rotor is composed of a rotor support, a shaft, a rotor yoke, and permanent magnets. The motor rotor is an important component of the motor, and it has many parts. Currently, in motor manufacturing, when assembling the rotor, it is generally necessary to apply glue to the permanent magnet sheets and then insert them into the rotor yoke. However, the following shortcomings have always existed in the assembly process.

[0003] 1. Currently, when assembling permanent magnet sheets and rotor yokes, it is generally necessary to first inject glue into the mounting groove on the rotor yoke, and then insert the permanent magnet sheets into the mounting groove to complete the installation. However, since the glue is only applied to one side of the mounting groove when it is injected, and the width of the mounting groove is relatively narrow, the glue cannot be applied evenly, which will affect the bonding quality of the permanent magnet sheets and thus affect the service life of the motor.

[0004] Currently, when assembling permanent magnet sheets and rotor yokes, it is generally necessary to insert the permanent magnet sheets into the mounting slots on the rotor yokes. Due to the small gap between the permanent magnet sheets and the mounting slots, unevenly applied glue may be pushed out of the mounting slots when the permanent magnet sheets are inserted, resulting in contamination of the rotor yoke side end face and affecting the use of the rotor. Summary of the Invention

[0005] The purpose of this invention is to provide a method for assembling a motor rotor, which is not only simple to operate but also efficient in assembling the motor rotor.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a method for assembling a motor rotor, wherein the method uses assembly equipment, the assembly equipment includes a frame, and the frame is provided with a first feeding assembly, a second feeding assembly, an adhesive application assembly, and an adhesive removal assembly; the method for assembling a motor rotor includes the following steps:

[0007] S1. Control the glue injection push rod in the glue coating assembly to enter the magnetic plate slot of the first feeding assembly, put the permanent magnet plate to be installed into the magnetic plate slot, and then control the first feeding assembly to push the permanent magnet plate inward so that the permanent magnet plate hits the glue injection push rod. Then place the rotor yoke on the mounting platform of the second feeding assembly.

[0008] S2. Control the glue injection push rod in the glue application assembly to extend into the mounting groove of the rotor yoke and pass glue into the flow channel inside the glue injection push rod. At the same time, control the glue injection push rod to slide back and forth in the mounting groove of the rotor yoke to spread the glue evenly.

[0009] S3. Control the glue application assembly to cooperate with the first feeding assembly to insert the permanent magnet sheet into the mounting slot of the rotor yoke;

[0010] S4. Control the glue cleaning component to scrape off the glue squeezed out by the permanent magnet sheet from the bottom surface of the rotor yoke.

[0011] S5. After the glue is cleaned up, control the mounting platform in the second feeding assembly to move downwards, and let the worker remove the assembled rotor yoke.

[0012] Furthermore, the first feeding assembly includes a feeding block mounted on a frame. The feeding block has a square hole with an open top at its center. A through hole is located at the bottom center of the square hole inside the feeding block. Magnetic slots for placing permanent magnet pieces are located on the four sides of the feeding block opposite the square hole. A through slot is located at the end of the magnetic slot near the square hole inside the feeding block, allowing only one permanent magnet piece to pass through downwards. A first slot is located below the end of the magnetic slot away from the square hole inside the feeding block. A first electric push rod is fixedly mounted at each first slot at the lower end of the feeding block. A push plate is fixedly mounted at the telescopic end of the first electric push rod, passing through the first slot and extending into the magnetic slot. The push plate is used to push the permanent magnet piece in the magnetic slot towards the slot. A through slot is located below the end away from the square hole, allowing only one permanent magnet piece to pass through downwards.

[0013] Furthermore, the second feeding assembly includes a second electric push rod, which is fixedly installed in the frame in a vertical direction. The telescopic end of the second electric push rod is vertically upward and fixedly provided with a mounting platform. The upper end of the mounting platform is provided with four positioning posts evenly spaced circumferentially. When the rotor yoke is placed on the mounting platform, the four positioning posts are inserted into the positioning holes at the lower end of the rotor yoke, and the four mounting slots in the rotor yoke are aligned with the lower ends of the four slots.

[0014] Furthermore, the adhesive application assembly includes a first motor, and a vertical frame is provided at the upper end of the feeding block. The first motor is fixedly installed at the upper end of the vertical frame. The output shaft of the first motor is vertically downward and fixedly provided with a first lead screw. A control plate that is threadedly connected to the first lead screw is slidably connected along the vertical direction on the vertical frame. A vertically arranged adhesive injection push rod is movably connected above each slot on the control plate. The adhesive injection push rod is provided with an adhesive inlet hole with an open upper end. The outer side of the adhesive injection push rod is provided with an adhesive outlet hole communicating with the adhesive inlet hole near the lower end. The adhesive injection push rod is used on one hand to apply adhesive by extending through the slot into the mounting groove of the rotor yoke, and on the other hand to push the permanent magnet sheet located in the slot downward into the mounting groove of the rotor yoke.

[0015] Furthermore, the control board has an upwardly extending first protrusion at its upper center. A second motor is fixedly mounted on the outer side of the first protrusion, and a control rod is fixedly mounted on the output shaft of the second motor. A rotating disk located at the upper end of the control board is rotatably connected to the outer side of the first protrusion. A first groove is provided directly above each slot in the control board. The upper end of the glue injection push rod extends out of the first groove. The outer side of the glue injection push rod has a protruding edge located below the control board and a toothed disc located above the control board. The rotating disk has a second groove located directly opposite each first groove for the upper end of the glue injection push rod to extend into. The second groove is perpendicular to the first groove. The rotating disk has a dial groove, and the end of the control rod has a dial post extending into the dial groove.

[0016] Furthermore, when the control lever rotates, the shift pin and the shift groove cooperate to drive the rotating disk to rotate. When the rotating disk rotates, the glue injection push rod is driven to reciprocate in the first slide groove through the cooperation of the glue injection push rod with the first slide groove and the second slide groove. The upper end of the control plate is provided with a rack that meshes with the convex toothed disc at each of the first slide grooves. When the glue injection push rod reciprocates in the first slide groove, the convex toothed disc and the rack cooperate to drive the glue injection push rod to reciprocate and rotate.

[0017] Furthermore, the adhesive removal assembly includes a rotating ring rotatably connected to the outer side of the mounting platform. Multiple scrapers are evenly spaced circumferentially on the outer side of the rotating ring. When the rotor yoke is mounted on the upper end of the mounting platform, the upper ends of the scrapers abut against the lower end face of the rotor yoke. A lower shaft is rotatably connected inside the mounting platform. The upper end of the lower shaft extends out of the mounting platform and is fixedly fitted with a lower end face connecting wheel. A first gear located below the mounting platform is fixedly mounted on the outer side of the lower shaft. A second gear meshing with the first gear is rotatably connected to the lower end of the mounting platform. The lower end of the rotating ring is provided with an inner... A gear ring; an upper shaft is rotatably connected inside the first convex sleeve. The side wall of the first convex sleeve is provided with a second groove. A pin is fixedly provided on the upper shaft, extending out of the second groove and fixedly connected to the rotating disk. When the rotating disk reciprocates, it drives the upper shaft to reciprocate through the pin. A connecting plate is fixedly provided at the lower end of the upper shaft. A third electric push rod coaxial with the upper shaft is fixedly provided on the connecting plate. The telescopic end of the third electric push rod faces downward and is fixedly provided with an upper end face connecting wheel for passing through a through hole and meshing with the lower end face connecting wheel. When the lower end face connecting wheel meshes with the upper end face connecting wheel, the upper shaft drives the lower shaft to rotate.

[0018] Furthermore, the frame has a second protrusion at the lower end of the lower shaft for the lower end of the lower shaft to extend into.

[0019] Beneficial effects

[0020] Compared with the prior art, the technical solution of the present invention has the following advantages:

[0021] 1. By setting a glue injection push rod with four glue injection holes, when injecting glue, the glue injection push rod is inserted into the mounting groove on the rotor yoke. Since the diameter of the glue injection push rod is close to the width of the mounting groove, the glue can be applied to the front and rear sides of the mounting groove during glue injection, so that the permanent magnet sheet can be glued and fixed on both the front and rear sides, improving the bonding quality of the permanent magnet sheet and ensuring the service life of the motor.

[0022] 2. By setting a rack and a toothed disc on the glue injection push rod to mesh with the rack, when the glue injection push rod moves along the mounting groove driven by the rotating disk, the glue injection push rod rotates due to the cooperation of the rack and the toothed disc. The rotation of the glue injection push rod can then spread the glue evenly, ensuring the quality of glue application and allowing the permanent magnet sheet to be better bonded.

[0023] 3. By rotating the rotary disk, the glue injection push rod can be driven to slide along the first slide groove. The rotary disk can then position the glue injection push rod in the middle of the first slide groove. The glue injection push rod can then push the permanent magnet sheet into the rotor yoke. No manual installation is required, saving manpower and improving assembly efficiency.

[0024] 4. By setting a scraper below the rotor yoke and driving it through the upper and lower end face connecting wheels, the scraper rotates when the rotating disk rotates. When the permanent magnet is inserted into the rotor yoke and pushes out the glue in the mounting groove of the rotor yoke, the glue can be scraped off by the rotation of the scraper, thus avoiding contamination of the rotor yoke. Attached Figure Description

[0025] Figure 1 This is a cross-sectional view of the present invention;

[0026] Figure 2 For the present invention Figure 1 Sectional view along the AA direction;

[0027] Figure 3 For the present invention Figure 1 Sectional view along the BB direction;

[0028] Figure 4 For the present invention Figure 1 Sectional view along the CC direction;

[0029] Figure 5 For the present invention Figure 1 Sectional view along the DD direction;

[0030] Figure 6 For the present invention Figure 1 Sectional view along the EE direction;

[0031] Figure 7 This is a three-dimensional view of the lower end face connecting wheel of the present invention. Detailed Implementation

[0032] Please see Figure 1-7 As shown, a method for assembling a motor rotor is disclosed. The method utilizes assembly equipment, which includes a frame 1. The frame 1 is equipped with a first feeding assembly, a second feeding assembly, an adhesive application assembly, and an adhesive removal assembly. The method for assembling the motor rotor includes the following steps:

[0033] S1. Control the glue injection push rod 42 in the glue coating assembly to enter the magnetic plate slot 11 of the first feeding assembly, put the permanent magnet plate 22 to be installed into the magnetic plate slot 11, and then control the first feeding assembly to push the permanent magnet plate 22 inward so that the permanent magnet plate 22 presses against the glue injection push rod 42. Then place the rotor yoke 21 on the mounting platform 71 of the second feeding assembly.

[0034] S2. Control the glue injection push rod 42 in the glue application assembly to extend into the mounting groove 211 of the rotor yoke 21 and pass glue into the flow channel in the glue injection push rod 42. At the same time, control the glue injection push rod 42 to slide back and forth in the mounting groove 211 of the rotor yoke 21 to spread the glue evenly.

[0035] S3. Control the glue application assembly to cooperate with the first feeding assembly to insert the permanent magnet sheet 22 into the mounting slot 211 of the rotor yoke 21;

[0036] S4. Control the glue cleaning component to scrape off the glue squeezed out by the permanent magnet sheet 22 on the bottom surface of the rotor yoke 21.

[0037] S5. After the glue is cleaned up, control the mounting platform 71 in the second feeding assembly to move downwards, and let the worker remove the assembled rotor yoke 21.

[0038] The first feeding assembly includes a feeding block 1a mounted on a frame 1. The feeding block 1a has a square hole 1e with an open top at its center. A through hole 111 is located at the bottom center of the square hole 1e inside the feeding block 1a. Magnetic slots 11 for placing permanent magnet pieces 22 are provided on each of the four sides of the feeding block 1a opposite the square hole 1e. Each magnetic slot 1b, extending vertically through the magnetic slots 11 near the square hole 1e, allows only one permanent magnet piece 22 to pass through downwards. Each end of the magnetic sheet slot 11 away from the square hole 1e is provided with a first slot 1c. The lower end of the feeding block 1a is fixedly provided with a first electric push rod 13 at each first slot 1c. The telescopic end of the first electric push rod 13 is fixedly provided with a push plate 12 that passes through the first slot 1c and extends into the magnetic sheet slot 11. The push plate 12 is used to push the permanent magnet sheet 22 in the magnetic sheet slot 11 to move towards the slot 1b. Each end away from the square hole 1e is provided with a slot 1b that passes through the first slot 1c vertically. The slot 1b can only allow one permanent magnet sheet 22 to pass downward.

[0039] The second feeding assembly includes a second electric push rod 77, which is fixedly installed in the frame 1 in a vertical direction. The telescopic end of the second electric push rod 77 is vertically upward and fixedly provided with a mounting platform 71. The upper end of the mounting platform 71 is provided with four positioning posts 72 evenly spaced circumferentially. When the rotor yoke 21 is placed on the mounting platform 71, the four positioning posts 72 are inserted into the positioning holes at the lower end of the rotor yoke 21, and the four mounting slots 211 in the rotor yoke 21 are directly opposite the lower ends of the four slots 1b.

[0040] The adhesive application assembly includes a first motor 31. A vertical frame 1d is provided at the upper end of the feeding block 1a. The first motor 31 is fixedly installed at the upper end of the vertical frame 1d. The output shaft of the first motor 31 is vertically downward and is fixedly provided with a first lead screw 32. A control plate 41 is slidably connected to the vertical frame 1d along the vertical direction and threadedly connected to the first lead screw 32. A vertically arranged adhesive injection push rod 42 is movably connected to each slot 1b directly above the control plate 41. The adhesive injection push rod 42 is provided with an adhesive inlet hole 4b with an open upper end. The outer side of the adhesive injection push rod 42 is provided with an adhesive outlet hole 422 communicating with the adhesive inlet hole 4b near the lower end. The adhesive injection push rod 42 is used to apply adhesive by passing through the slot 1b and extending into the mounting groove 211 of the rotor yoke 21. On the other hand, it is used to push the permanent magnet piece 22 located in the slot 1b downward into the mounting groove 211 of the rotor yoke 21. The control plate 41 has an upwardly extending first protrusion 41a at its upper center. A second motor 51 is fixedly mounted on the outer side of the first protrusion 41a. A control rod 52 is fixedly mounted on the output shaft of the second motor 51. A rotating disk 44 located at the upper end of the control plate 41 is rotatably connected to the outer side of the first protrusion 41a. A first groove 411 is provided directly above each slot 1b in the control plate 41. The upper end of the glue injection push rod 42 extends out of the first groove 411. The outer side of the glue injection push rod 42 is provided with a protruding edge 4a located below the control plate 41 and a toothed disk 421 located above the control plate 41. The rotating disk 44 has a second groove 441 located opposite each first groove 411 for the upper end of the glue injection push rod 42 to extend into. The second groove 441 is perpendicular to the first groove 411. The rotating disk 44 has a dial 442. The end of the control rod 52 is provided with a dial post 521 that extends into the dial 442. When the control lever 52 rotates, the shift pin 521 and the shift groove 442 cooperate to drive the rotating disk 44 to rotate. When the rotating disk 44 rotates, the glue injection push rod 42 is driven to reciprocate in the first slide groove 411 through the cooperation of the first slide groove 411 and the second slide groove 441. The upper end of the control plate 41 is provided with a rack 43 that meshes with the toothed disc 421 at each of the first slide grooves 411. When the glue injection push rod 42 reciprocates in the first slide groove 411, the toothed disc 421 and the rack 43 cooperate to drive the glue injection push rod 42 to reciprocate and rotate. In this embodiment, by setting a glue injection push rod 42 with multiple glue injection holes, when performing glue injection, the glue injection push rod 42 is inserted into the mounting groove 211 on the rotor yoke 21. Since the diameter of the glue injection push rod 42 is close to the width of the mounting groove 211, the glue can be applied to the front and rear sides of the mounting groove 211 during glue injection, thereby ensuring that the permanent magnet sheet 22 can be adhered and fixed on both the front and rear sides, improving the adhesion quality of the permanent magnet sheet 22 and ensuring the service life of the motor.Furthermore, by setting a rack 43 and a toothed disc 421 on the glue injection push rod 42 to mesh with the rack 43, when the glue injection push rod 42 is moved along the mounting groove 211 by the rotating disk 44, the cooperation between the rack 43 and the toothed disc 421 causes the glue injection push rod 42 to rotate. This rotation of the glue injection push rod 42 ensures that the glue is evenly applied, guaranteeing the quality of the glue application and allowing the permanent magnet sheet 22 to be better bonded. In addition, by setting the rotating disk 44 to rotate, the glue injection push rod 42 can slide along the first sliding groove 411. This allows the rotating disk 44 to position the glue injection push rod 42 in the middle of the first sliding groove 411, and the glue injection push rod 42 can push the permanent magnet sheet 22 into the rotor yoke 21. This eliminates the need for manual installation, saves manpower, and improves assembly efficiency.

[0041] The adhesive removal assembly includes a rotating ring 78, which is rotatably connected to the outside of the mounting platform 71. Multiple scrapers 781 are evenly spaced circumferentially on the outside of the rotating ring 78. When the rotor yoke 21 is mounted on the upper end of the mounting platform 71, the upper ends of the scrapers 781 abut against the lower end face of the rotor yoke 21. A lower shaft 76 is rotatably connected inside the mounting platform 71. The upper end of the lower shaft 76 extends out of the mounting platform 71 and is fixedly provided with a lower end face connecting wheel 75. A first gear 73 located below the mounting platform 71 is fixedly provided on the outside of the lower shaft 76. A second gear 74 meshing with the first gear 73 is rotatably connected to the lower end of the mounting platform 71. An internal gear ring 782 meshing with the second gear 74 is provided at the lower end of the rotating ring 78. An upper gear ring 782 is rotatably connected inside the first convex sleeve 41a. The upper shaft 6a has a second slot 41b on the side wall of the first protrusion 41a. A pin 63 is fixedly provided on the upper shaft 6a, extending out of the second slot 41b and fixedly connected to the rotating disk 44. When the rotating disk 44 reciprocates, it drives the upper shaft 6a to reciprocate through the pin 63. A connecting plate 6b is fixedly provided at the lower end of the upper shaft 6a. A third electric push rod 61 coaxial with the upper shaft 6a is fixedly provided on the connecting plate 6b. The telescopic end of the third electric push rod 61 faces downward and is fixedly provided with an upper end face connecting wheel 62 for passing through the through hole 111 and meshing with the lower end face connecting wheel 75. When the lower end face connecting wheel 75 meshes with the upper end face connecting wheel 62, the upper shaft 6a drives the lower shaft 76 to rotate. In this embodiment, the lower end face connecting wheel 75 and the upper end face connecting wheel 62 have the same structure as described above. Figure 7 As shown. The frame 1 has a second protrusion 1f at the lower end of the lower shaft 76 for the lower end of the lower shaft 76 to extend into. By setting a scraper 781 below the rotor yoke 21 and driving it through the upper end face connecting wheel 62 and the lower end face connecting wheel 75, when the rotating disk 44 rotates, it drives the scraper 781 to rotate. When the permanent magnet piece 22 is inserted into the rotor yoke 21 and pushes out the glue in the mounting groove 211 of the rotor yoke 21, the rotation of the scraper 781 can scrape off the glue, avoiding contamination of the rotor yoke 21.

[0042] In the above S1 of this embodiment, when the first feeding assembly and the second feeding assembly are working, the first motor 31 is first controlled to drive the first lead screw 32 to rotate. Since the first lead screw 32 and the control plate 41 are threaded together, the control plate 41 is driven to descend, thereby driving the glue injection push rod 42 into the magnetic sheet slot 11. The first electric push rod 13 is controlled to extend, driving the push plate 12 to move outward, placing the permanent magnet sheet 22 to be installed into the magnetic sheet slot 11. Then, the first electric push rod 13 is controlled to retract, driving the push plate 12 to push the permanent magnet sheet 22 inward, so that the permanent magnet sheet 22 is pressed against the glue injection push rod 42. Then, the second electric push rod 77 is controlled to retract, driving the mounting platform 71 to descend. The rotor yoke 21 is placed on the mounting platform 71 by the worker, and the rotor yoke 21 is positioned by the positioning column 72. Then, the second electric push rod 77 is controlled to extend, pushing the rotor yoke 21 to rise to the position of the rotor yoke 21. Figure 1 The location shown.

[0043] In S2 of this embodiment, when the glue application assembly is working, the first motor 31 is controlled to rotate, driving the control plate 41 to continue to descend, driving the glue injection push rod 42 into the mounting groove 211 of the rotor yoke 21. When the lower end of the glue injection push rod 42 is flush with the bottom surface of the rotor yoke 21, the descent stops, and then glue is introduced into the glue inlet hole 4b in the glue injection push rod 42, so that the glue flows out through the glue outlet hole 422 onto the side wall of the mounting groove 211. At the same time, the second motor 51 is controlled to rotate, driving the control rod 52 to rotate. Since the push pin 521 slides in the push groove 442, it drives the rotating disk 44 to rotate back and forth. Since the glue injection push rod 42 slides in the second sliding groove 441, it drives the glue injection push rod 42 to slide back and forth in the first sliding groove 411. Since the toothed disk 421 and the rack 43 mesh, the glue injection push rod 42 rotates while moving. The glue is evenly applied by the rotation of the glue injection push rod 42, thus completing the glue application.

[0044] In S3 of this embodiment, when the glue application assembly and the first feeding assembly cooperate to insert the permanent magnet sheet 22 into the mounting groove 211 of the rotor yoke 21, the first motor 31 is controlled to drive the control plate 41 to rise, so that the glue injection push rod 42 exits the magnetic sheet groove 11. Then, the first electric push rod 13 is controlled to retract, pushing the permanent magnet sheet 22 in the magnetic sheet groove 11 to move inward to the slot 1b, so that it is aligned with the mounting groove 211 of the rotor yoke 21. The second motor 51 is controlled to stop the glue injection push rod 42 in the middle position of the first slide groove 411 through the rotating disk 44. The first motor 31 is controlled to drive the glue injection push rod 42 to descend, so that the glue injection push rod 42 pushes the permanent magnet sheet 22 into the mounting groove 211. When the permanent magnet sheet 22 is installed in place, the insertion of the permanent magnet sheet 22 is completed.

[0045] In the above S4 of this embodiment, when the permanent magnet sheet 22 is inserted and the glue cleaning component is working, the second motor 51 is controlled to rotate, driving the rotating disk 44 to rotate back and forth, and then the upper shaft rod 6a is driven to rotate back and forth through the pin 63. The third electric push rod 61 is controlled to extend so that the upper end face connecting wheel 62 and the lower end face connecting wheel 75 cooperate, and then the lower shaft rod 76 drives the first gear 73 to rotate. Since the first gear 73 and the second gear 74 mesh, the second gear 74 meshes with the internal gear ring 782, and then the scraper 781 is driven to rotate through the rotating ring 78 to scrape off the glue squeezed out by the permanent magnet sheet 22 on the bottom surface of the rotor yoke 21, thus completing the glue cleaning.

[0046] In the above S5 of this embodiment, after the glue is cleaned, the second electric push rod 77 is controlled to retract, driving the mounting platform 71 to descend, and the assembled rotor yoke 21 is removed by the worker, thus completing the assembly action.

[0047] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for assembling a motor rotor, characterized in that, The motor rotor assembly method uses assembly equipment, which includes a frame and is equipped with a first feeding assembly, a second feeding assembly, an adhesive application assembly, and an adhesive removal assembly. The motor rotor assembly method includes the following steps: S1. Control the glue injection push rod in the glue coating assembly to enter the magnetic plate slot of the first feeding assembly, put the permanent magnet plate to be installed into the magnetic plate slot, and then control the first feeding assembly to push the permanent magnet plate inward so that the permanent magnet plate hits the glue injection push rod. Then place the rotor yoke on the mounting platform of the second feeding assembly. S2. Control the glue injection push rod in the glue application assembly to extend into the mounting groove of the rotor yoke and pass glue into the flow channel inside the glue injection push rod. At the same time, control the glue injection push rod to slide back and forth in the mounting groove of the rotor yoke to spread the glue evenly. S3. Control the glue application assembly to cooperate with the first feeding assembly to insert the permanent magnet sheet into the mounting slot of the rotor yoke; S4. Control the glue cleaning component to scrape off the glue squeezed out by the permanent magnet sheet from the bottom surface of the rotor yoke. S5. After the glue is cleaned up, control the mounting platform in the second feeding assembly to move downwards, and let the worker remove the assembled rotor yoke. The first feeding assembly includes a feeding block mounted on a frame. The feeding block has a square hole with an open top at its center. A through hole is located at the bottom center of the square hole inside the feeding block. Magnetic slots for placing permanent magnet pieces are located on the four sides of the feeding block opposite the square hole. Each magnetic slot near the square hole has a through-hole that allows only one permanent magnet piece to pass through at a time. A first slot is located below the end of the magnetic slot away from the square hole inside the feeding block. A first electric push rod is fixedly mounted at each first slot at the lower end of the feeding block. A push plate is fixedly mounted at the telescopic end of the first electric push rod, passing through the first slot and extending into the magnetic slot. The push plate is used to push the permanent magnet piece in the magnetic slot towards the slot. A through-hole is located below the end away from the square hole, allowing only one permanent magnet piece to pass through at a time. The adhesive application assembly includes a first motor. A vertical frame is provided at the upper end of the feeding block. The first motor is fixedly installed at the upper end of the vertical frame. The output shaft of the first motor is vertically downward and fixedly provided with a first lead screw. A control plate is slidably connected to the vertical frame along the vertical direction and threadedly connected to the first lead screw. A vertically arranged adhesive injection push rod is movably connected above each slot on the control plate. The adhesive injection push rod is provided with an adhesive inlet hole with an opening at the upper end. The outer side of the adhesive injection push rod is provided with an adhesive outlet hole communicating with the adhesive inlet hole near the lower end. The adhesive injection push rod is used to apply adhesive by extending through the slot into the mounting groove of the rotor yoke, and also to push the permanent magnet sheet located in the slot downward into the mounting groove of the rotor yoke. The control board has a first protrusion extending upward at its upper center. A second motor is fixedly mounted on the outside of the first protrusion, and a control rod is fixedly mounted on the output shaft of the second motor. A rotating disk located at the upper end of the control board is rotatably connected to the outside of the first protrusion. A first groove is provided directly above each slot in the control board. The upper end of the glue injection push rod extends out of the first groove. The outer side of the glue injection push rod has a protruding edge located below the control board and a toothed disc located above the control board. The rotating disk has a second groove located directly opposite each first groove for the upper end of the glue injection push rod to extend into. The second groove is perpendicular to the first groove. The rotating disk has a dial groove, and the end of the control rod has a dial post extending into the dial groove.

2. The motor rotor assembly method according to claim 1, characterized in that, The second feeding assembly includes a second electric push rod, which is fixedly installed in the frame in a vertical direction. The telescopic end of the second electric push rod is vertically upward and fixedly provided with a mounting platform. The upper end of the mounting platform is provided with four positioning posts evenly spaced in the circumferential direction. When the rotor yoke is placed on the mounting platform, the four positioning posts are inserted into the positioning holes at the lower end of the rotor yoke, and the four mounting slots in the rotor yoke are aligned with the lower ends of the four slots.

3. The motor rotor assembly method according to claim 2, characterized in that, When the control lever rotates, the shift pin and the shift groove cooperate to drive the rotating disk to rotate. When the rotating disk rotates, the glue injection push rod is driven to reciprocate in the first slide groove through the cooperation of the glue injection push rod with the first slide groove and the second slide groove. The upper end of the control plate is provided with a rack that meshes with the convex toothed plate at each first slide groove. When the glue injection push rod reciprocates in the first slide groove, the convex toothed plate and the rack cooperate to drive the glue injection push rod to reciprocate and rotate.

4. The motor rotor assembly method according to claim 3, characterized in that, The adhesive removal assembly includes a rotating ring rotatably connected to the outside of a mounting platform. Multiple scrapers are evenly spaced circumferentially on the outside of the rotating ring. When the rotor yoke is mounted on the upper end of the mounting platform, the upper ends of the scrapers abut against the lower end face of the rotor yoke. A lower shaft is rotatably connected inside the mounting platform. The upper end of the lower shaft extends out of the mounting platform and is fixedly fitted with a lower end face connecting wheel. A first gear located below the mounting platform is fixedly mounted on the outside of the lower shaft. A second gear meshing with the first gear is rotatably connected to the lower end of the mounting platform. An internal gear ring meshing with the second gear is provided at the lower end of the rotating ring. The first convex sleeve is rotatably connected to an upper shaft. The side wall of the first convex sleeve is provided with a second groove. A pin is fixedly provided on the upper shaft, extending out of the second groove and fixedly connected to the rotating disk. When the rotating disk reciprocates, it drives the upper shaft to reciprocate through the pin. A connecting plate is fixedly provided at the lower end of the upper shaft. A third electric push rod coaxial with the upper shaft is fixedly provided on the connecting plate. The telescopic end of the third electric push rod is downward and is fixedly provided with an upper end face connecting wheel for passing through a through hole and meshing with the lower end face connecting wheel. When the lower end face connecting wheel meshes with the upper end face connecting wheel, the upper shaft drives the lower shaft to rotate.

5. The motor rotor assembly method according to claim 4, characterized in that, The frame has a second protrusion at the lower end of the lower shaft for the lower end of the lower shaft to extend into.

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