Precise anti-deviation assembling equipment for permanent magnet motor rotor magnet

Abstract

The application provides a precise anti-deviation assembling equipment for a rotor magnet of a permanent magnet motor, and relates to the technical field of rotor magnet assembling. The equipment comprises a support assembly, a lifting assembly, a horizontal moving assembly, a ring-shaped suction accessory, a follow-up positioning adjusting mechanism and a magnetic suction limiting assembly. The support assembly comprises a preparation table and an assembling table, which are used for providing mounting positions and supporting forces. The lifting assembly is arranged above the support assembly and is used for providing a lifting function. The horizontal moving assembly is arranged on a lifting component of the lifting assembly and is used for providing a horizontal moving function. The follow-up positioning adjusting mechanism and the magnetic suction limiting assembly can be self-adapted to rotor cores with different height specifications. A high-precision displacement sensor is used to correct the assembling position of the permanent magnet in real time, eliminate assembling horizontal deviation and gap errors, prevent the permanent magnet from deviating and falling off, greatly improve the assembling precision and production efficiency of the rotor, and reduce the product failure rate.

Description

Technical Field

[0001] This invention relates to the field of rotor magnet assembly technology, specifically to a precision anti-deviation assembly device for permanent magnet motor rotor magnets. Background Technology

[0002] The working principle of a permanent magnet motor is based on the interaction between the rotating magnetic field generated by the stator and the magnetic field generated by permanent magnets on the rotor. The rotor is equipped with pre-magnetized permanent magnets, which generate a strong magnetic field when rotating, providing output torque. During the production of the permanent magnet motor rotor, the permanent magnets need to be assembled with the rotor core.

[0003] In related technologies, such as CN122268100A, there is a method for assembling rotor magnets for permanent magnet motors, including: an assembly fixture, a bracket with a slot, a flexible track, and multiple anti-foolproof magnets; the assembly method includes: S1: multiple assembly magnets coated with accelerator are respectively attracted and fixed to the corresponding anti-foolproof magnets of the flexible track in a manner with opposite magnetic poles facing each other, and the flexible track is simultaneously pushed into the slot when each assembly magnet is attracted to the anti-foolproof magnet; S2: a stator iron ring coated with glue is fixed in the assembly fixture; S3: the flexible track is pulled out from the slot, and the assembly magnet moves with the flexible track and remains fixed under the attraction of the anti-foolproof magnet.

[0004] For permanent magnet motor rotor products with built-in permanent magnets, the above assembly method is not suitable. The general manual assembly method cannot guarantee assembly accuracy and has low production efficiency. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a precision anti-deviation assembly device for permanent magnet motor rotor magnets, which solves the problems of insufficient assembly accuracy and low production efficiency of permanent magnet motor rotors.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a precision anti-deviation assembly device for permanent magnet motor rotor magnets, comprising: A support assembly, comprising a preparation table and an assembly table, for providing installation position and support force; A lifting assembly, located above the support assembly, is used to provide a lifting function; A lateral movement component, which is disposed on the lifting part of the lifting component, is used to provide a lateral movement function; An annular adsorption element is disposed on the moving part of the transverse assembly and is used to provide an annular adsorption surface to adsorb the permanent magnet to be assembled. A follow-up positioning adjustment mechanism is located below the assembly table and is used to provide a positionable rotation adjustment function. A magnetic attraction limiting component, mounted on the rotating part of the follow-up positioning adjustment mechanism, provides magnetic attraction limiting for the rotor core to be assembled. Through the follow-up positioning adjustment mechanism and the magnetic attraction limiting component, the system can adapt to rotor cores of different heights and specifications. A high-precision displacement sensor corrects the assembly position of the permanent magnets in real time, eliminating lateral deviations and gap errors, and preventing permanent magnet offset and detachment. Furthermore, the equipment is highly automated, requiring no manual calibration, significantly improving rotor assembly accuracy and production efficiency, and reducing product defect rates.

[0007] Preferably, the support assembly further includes a top frame, the top frame, the assembly platform and the preparation platform are fixedly connected to each other, a support leg is fixedly connected to the bottom of the preparation platform, a preparation seat is fixedly connected to the bottom of the preparation platform, and the preparation platform is provided with a receiving hole for accommodating a permanent magnet.

[0008] Preferably, the lifting assembly includes a lifting cylinder fixedly installed on the top frame, the output end of the lifting cylinder is fixedly connected to a mounting base, a guide rod is fixedly connected to the mounting base, and the guide rod is slidably engaged with the top frame.

[0009] Preferably, the traversing assembly includes a traversing track fixedly mounted on a mounting base, a traversing motor fixedly mounted on the end face of the mounting base, a traversing lead screw fixedly connected to the output end of the traversing motor, and a traversing seat slidably connected on the traversing track, the traversing seat being threadedly engaged with the traversing lead screw.

[0010] Preferably, the follow-up positioning adjustment mechanism includes a servo motor, a bearing housing one, and a bearing housing two, which are fixedly installed on the lower part of the assembly table. The output end of the servo motor is fixedly connected to a follow-up base plate, a connecting column is fixedly connected to the follow-up base plate, and a follow-up top plate is fixedly connected to the upper end of the connecting column. The follow-up top plate is rotatably connected to the bearing housing two via a bearing, and the follow-up base plate is rotatably connected to the bearing housing one via a bearing. A rotor core can be placed on the follow-up top plate.

[0011] Preferably, the annular adsorption element comprises multiple arc-shaped electromagnets, and the number of the annular adsorption elements is two.

[0012] Preferably, the magnetic attraction limiting assembly includes an adjusting push rod fixedly installed on the follower base plate. An adjusting plate is fixedly connected to the telescopic end of the adjusting push rod. The adjusting plate is slidably engaged with the connecting column. A magnetic attraction element is provided at the lower part of the adjusting plate. Limiting holes are evenly provided on the connecting column. A limiting column is fixedly connected to the center of the adjusting plate. The limiting column can pass through the follower top plate to limit the rotor core to be assembled.

[0013] Preferably, the magnetic attractor includes a sliding frame slidably mounted on a connecting column, a partition plate provided on the inner side of the sliding frame, a sliding rod slidably connected to the sliding frame, a limiting spring sleeved on the sliding rod, the limiting spring being located inside the sliding frame, a movable plate fixedly connected to one end of the sliding rod extending into the sliding frame, a limiting head fixedly connected to one end of the movable plate near the connecting column, the limiting head being able to pass through the partition plate and insert into a limiting hole, a permanent magnet fixedly connected to the movable plate, and a square electromagnet fixedly mounted on the inner side of the sliding frame, the square electromagnet being able to attract the permanent magnet when energized.

[0014] This invention provides a precision anti-deviation assembly device for the rotor magnet of a permanent magnet motor. It has the following beneficial effects: This invention, through its adaptive positioning adjustment mechanism and magnetic limiting component, can adapt to rotor cores of different heights and specifications. It uses a high-precision displacement sensor to correct the assembly position of permanent magnets in real time, eliminating lateral deviations and gap errors in assembly, and preventing permanent magnet offset and detachment. Moreover, the equipment is highly automated, requiring no manual calibration, which greatly improves rotor assembly accuracy and production efficiency, and reduces product defect rate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a front view of the present invention; Figure 3 This is a schematic diagram of the transverse movement component in this invention; Figure 4 This is a schematic diagram of the follow-up positioning adjustment mechanism in this invention; Figure 5 This is a schematic diagram of the magnetic attraction limiting component in this invention; Figure 6 This is a schematic diagram of the magnetic suction component in this invention.

[0016] The components include: 1. Support assembly; 2. Lifting assembly; 3. Horizontal movement assembly; 4. Annular suction component; 5. Follow-up positioning and adjustment mechanism; 6. Magnetic limit assembly; 101. Preparation table; 102. Support leg; 103. Top frame; 104. Preparation seat; 105. Assembly table; 201. Lifting cylinder; 202. Guide rod; 301. Mounting seat; 302. Horizontal movement track; 303. Horizontal movement screw; 304. Horizontal movement seat; 305. Horizontal movement motor; 501. Servo motor. 502. Bearing seat one; 503. Bearing seat two; 504. Follower top plate; 505. Follower bottom plate; 506. Connecting column; 601. Adjusting push rod; 602. Adjusting plate; 603. Limiting column; 604. Magnetic suction component; 605. Limiting hole; 6041. Sliding frame; 6042. Moving plate; 6043. Limiting head; 6044. Partition plate; 6045. Slide rod; 6046. Limiting spring; 6047. Square electromagnet; 6048. Permanent magnet. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and 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.

[0018] like Figures 1-6 As shown, this embodiment of the invention provides a precision anti-deviation assembly device for the rotor magnet of a permanent magnet motor, comprising: refer to Figure 2 The support assembly 1 includes a preparation platform 101 and an assembly platform 105, which are used to provide installation position and support force. The support assembly 1 also includes a top frame 103. The top frame 103, the assembly platform 105 and the preparation platform 101 are fixedly connected to each other. A support leg 102 is fixedly connected to the lower part of the preparation platform 101. A preparation seat 104 is fixedly connected to the lower part of the preparation platform 101. The preparation platform 101 is provided with a receiving hole for accommodating permanent magnets. There are two preparation platforms 101, located on the left and right sides of the assembly platform 105, respectively, for placing permanent magnets to be assembled; the preparation base 104 consists of a circular plate and three uprights, which can provide necessary support for multiple permanent magnets and ensure their stability; the number of support legs 102 is selected according to the gravity distribution to ensure the overall stability of the bracket assembly 1; a controller is installed on the support legs 102 to provide control functions; the shape of the receiving hole is adapted to the shape of the permanent magnet to ensure that the permanent magnet is in a vertical position.

[0019] refer to Figure 2Lifting component 2 is located above support component 1 and is used to provide lifting function. Lifting component 2 includes lifting cylinder 201 fixedly installed on top frame 103. The output end of lifting cylinder 201 is fixedly connected to mounting base 301. A guide rod 202 is fixedly connected to mounting base 301. The guide rod 202 slides with top frame 103. During lifting operations, the lifting cylinder 201 operates under the control of an external air source and controller, driving the mounting base 301 to move. When the mounting base 301 partially moves downward, it can provide downward assembly pressure to the permanent magnet. The guide rod 202 is used to provide guidance and ensure the stability of the movement of the mounting base 301.

[0020] refer to Figure 3 The transverse component 3 is mounted on the lifting component of the lifting component 2 and is used to provide transverse movement function. The transverse component 3 includes a transverse track 302 fixedly mounted on the mounting base 301. A transverse motor 305 is fixedly mounted on the end face of the mounting base 301. A transverse lead screw 303 is fixedly connected to the output end of the transverse motor 305. A transverse seat 304 is slidably connected on the transverse track 302. The transverse seat 304 is threadedly engaged with the transverse lead screw 303. During the lateral movement operation, the lateral movement motor 305 operates under the power supply and controller, driving the lateral movement screw 303 to rotate. The lateral movement screw 303 drives the lateral movement seat 304 to move on the lateral movement track 302, thereby changing the position of the two annular adsorption components 4 to facilitate the adsorption and release of the permanent magnets to be assembled.

[0021] refer to Figure 2 The annular adsorption element 4 is disposed on the moving part of the transverse assembly 3 and is used to provide an annular adsorption surface to adsorb the permanent magnet to be assembled; the annular adsorption element 4 includes multiple arc-shaped electromagnets, and there are two annular adsorption elements 4. Multiple arc-shaped electromagnets are spliced ​​together to form a ring. In order to accommodate multiple permanent magnets to be assembled, since the magnetic properties of adjacent permanent magnets are different, the magnetic properties of adjacent arc-shaped electromagnets also need to be adjusted accordingly to generate magnetic properties that can attract them. For example, to attract permanent magnets with N poles, electromagnets with S poles are used. The distances between the two ring-shaped adsorption components 4 and the preparation table 101 and the assembly table 105 are matched to ensure that when one ring-shaped adsorption component 4 is performing assembly work, the other ring-shaped adsorption component 4 is adsorbing the prepared permanent magnets to be assembled.

[0022] refer to Figure 4The follow-up positioning adjustment mechanism 5 is located below the assembly platform 105 and is used to provide a positionable self-rotation adjustment function. The follow-up positioning adjustment mechanism 5 includes a servo motor 501, a bearing seat 1 502, and a bearing seat 2 503 fixedly installed on the lower part of the assembly platform 105. The output end of the servo motor 501 is fixedly connected to a follow-up base plate 505. A connecting column 506 is fixedly connected to the follow-up base plate 505. A follow-up top plate 504 is fixedly connected to the upper end of the connecting column 506. The follow-up top plate 504 is rotatably connected to the bearing seat 2 503 through a bearing. The follow-up base plate 505 is rotatably connected to the bearing seat 1 502 through a bearing. The rotor core can be placed on the follow-up top plate 504. The servo motor 501, in conjunction with the integrated high-precision displacement sensor, provides precise positioning and rotation under the control of the power supply and controller. This enables the servo motor to drive the entire assembly of the follower base plate 505, connecting column 506, and follower top plate 504, ensuring that the permanent magnet mounting holes on the rotor core are aligned with the positions of the permanent magnets to be installed, thus guaranteeing accurate rotation positioning. Bearing housing 1 502 and bearing housing 2 503 ensure the stability of the rotation of the follower base plate 505 and follower top plate 504.

[0023] refer to Figure 5 The magnetic attraction limiting component 6 is located on the rotating part of the follow-up positioning adjustment mechanism 5 and is used to provide magnetic attraction limiting function for the rotor core to be assembled. The magnetic attraction limiting component 6 includes an adjustment push rod 601 fixedly installed on the follow-up base plate 505. An adjustment plate 602 is fixedly connected to the telescopic end of the adjustment push rod 601. The adjustment plate 602 is slidably engaged with the connecting column 506. A magnetic attraction component 604 is provided at the lower part of the adjustment plate 602. Limiting holes 605 are evenly provided on the connecting column 506. A limiting column 603 is fixedly connected to the center of the adjustment plate 602. The limiting column 603 can pass through the follow-up top plate 504 to limit the rotor core to be assembled. To accommodate rotor cores of different thicknesses, the adjusting push rod 601, under the control of the power supply and controller, can drive the adjusting plate 602 and the limiting post 603 to move up and down, controlling the height of the limiting post 603 to ensure that the limiting post 603 can be fully inserted into the rotor core and restrict the rotor core; the magnetic suction component 604 is used to provide a magnetic attraction and fixing effect.

[0024] refer to Figure 6The magnetic component 604 includes a sliding frame 6041 slidably mounted on the connecting post 506. A partition plate 6044 is provided on the inner side of the sliding frame 6041. A sliding rod 6045 is slidably connected to the sliding frame 6041. A limiting spring 6046 is sleeved on the sliding rod 6045. The limiting spring 6046 is located inside the sliding frame 6041. A movable plate 6042 is fixedly connected to one end of the sliding rod 6045 that extends into the sliding frame 6041. A limiting head 6043 is fixedly connected to one end of the movable plate 6042 that is close to the connecting post 506. The limiting head 6043 can pass through the partition plate 6044 and be inserted into the limiting hole 605. A permanent magnet 6048 is fixedly connected to the movable plate 6042. A square electromagnet 6047 is fixedly mounted on the inner side of the sliding frame 6041. The square electromagnet 6047 can attract the permanent magnet 6048 when it is energized. When magnetic attraction is required and fixation is needed, the square electromagnet 6047 is not energized. Under the elastic force of the limit spring 6046, the moving plate 6042 is squeezed and the limit head 6043 passes through the partition plate 6044 and is inserted into the limit hole 605 to fix the adjustment plate 602. When adsorption and fixation are not required, the square electromagnet 6047 is energized, and the square electromagnet 6047 generates an adsorption force, which can drive the permanent magnet 6048 and the moving plate 6042 to move together against the elastic force of the limiting spring 6046, thereby moving the limiting head 6043 out of the limiting hole 605. At this time, the adjusting plate 602 can slide smoothly up and down on the connecting column 506.

[0025] Working principle: Place the permanent magnets to be assembled on the preparation table 101 as required; place the rotor core to be assembled on the assembly table 105; When the square electromagnet 6047 is energized, it generates an attractive force, which can drive the permanent magnet 6048 and the moving plate 6042 to move together against the elastic force of the limiting spring 6046, thereby moving the limiting head 6043 out of the limiting hole 605. At this time, the adjusting plate 602 can slide smoothly up and down on the connecting column 506. Under the action of the power supply and controller, the adjusting push rod 601 can drive the adjusting plate 602 and the limiting post 603 to move upward, control the height of the limiting post 603, and ensure that the limiting post 603 can be fully inserted into the rotor core to restrict the rotor core. Then, when the square electromagnet 6047 is not energized, under the elastic force of the limit spring 6046, it presses the moving plate 6042, and the limit head 6043 passes through the partition plate 6044 and inserts into the limit hole 605 to fix the adjusting plate 602. The servo motor 501, in conjunction with the integrated high-precision displacement sensor, can provide precise positioning and rotation under the power supply and controller. This enables it to drive the follower base plate 505, connecting column 506, and follower top plate 504 as a whole, ensuring that the permanent magnet mounting holes on the rotor core are aligned with the positions of the permanent magnets to be installed, thus ensuring precise rotation positioning. The lifting cylinder 201 operates under the action of an external air source and controller, driving the mounting base 301 to move. When the mounting base 301 partially moves down; The transverse motor 305 operates under the power supply and controller, driving the transverse lead screw 303 to rotate. The transverse lead screw 303 drives the transverse seat 304 to move on the transverse track 302, changing the position of the two annular adsorption elements 4 to the right. The outer ring-shaped adsorption component 4 is energized to attract the permanent magnet to be assembled; then the lifting cylinder 201 is reset. The transverse motor 305 operates under the power supply and controller, driving the transverse lead screw 303 to rotate. The transverse lead screw 303 drives the transverse seat 304 to move on the transverse track 302, thereby changing the position of the two annular adsorption elements 4 to the left. The lifting cylinder 201 operates under the action of an external air source and controller, driving the mounting base 301 to move. When the mounting base 301 partially moves down, the annular adsorption component 4 can assemble the adsorbed permanent magnet to be assembled with the rotor core, thus completing the assembly.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precision anti-deviation assembly device for permanent magnet motor rotor magnets, characterized in that, include: The support assembly (1) includes a preparation table (101) and an assembly table (105) for providing installation position and support force; Lifting assembly (2), which is located above the support assembly (1) and is used to provide lifting function; A lateral movement component (3) is provided on the lifting component of the lifting component (2) to provide a lateral movement function; The annular adsorption element (4) is disposed on the moving part of the transverse component (3) and is used to provide an annular adsorption surface to adsorb the permanent magnet to be assembled. Follow-up positioning adjustment mechanism (5), which is located below the assembly table (105) and is used to provide a positionable self-rotation adjustment function; The magnetic attraction limiting component (6) is located on the rotating part of the follow-up positioning adjustment mechanism (5) and is used to provide magnetic attraction limiting function for the rotor core to be assembled.

2. The precision anti-deviation assembly equipment for permanent magnet motor rotor magnets according to claim 1, characterized in that: The support assembly (1) also includes a top frame (103), the top frame (103), the assembly platform (105) and the preparation platform (101) are fixedly connected to each other, a support leg (102) is fixedly connected to the bottom of the preparation platform (101), a preparation seat (104) is fixedly connected to the bottom of the preparation platform (101), and the preparation platform (101) is provided with a receiving hole for accommodating permanent magnets.

3. The precision anti-deviation assembly equipment for permanent magnet motor rotor magnets according to claim 2, characterized in that: The lifting assembly (2) includes a lifting cylinder (201) fixedly installed on the top frame (103). The output end of the lifting cylinder (201) is fixedly connected to a mounting base (301). A guide rod (202) is fixedly connected to the mounting base (301). The guide rod (202) slides with the top frame (103).

4. The precision anti-deviation assembly equipment for permanent magnet motor rotor magnets according to claim 3, characterized in that: The transverse assembly (3) includes a transverse track (302) fixedly mounted on a mounting base (301). A transverse motor (305) is fixedly mounted on the end face of the mounting base (301). A transverse lead screw (303) is fixedly connected to the output end of the transverse motor (305). A transverse seat (304) is slidably connected on the transverse track (302). The transverse seat (304) is threadedly engaged with the transverse lead screw (303).

5. The precision anti-deviation assembly equipment for permanent magnet motor rotor magnets according to claim 1, characterized in that: The follow-up positioning adjustment mechanism (5) includes a servo motor (501), a bearing seat one (502), and a bearing seat two (503) fixedly installed on the lower part of the assembly table (105). The output end of the servo motor (501) is fixedly connected to a follow-up base plate (505). A connecting column (506) is fixedly connected to the follow-up base plate (505). A follow-up top plate (504) is fixedly connected to the upper end of the connecting column (506). The follow-up top plate (504) and the bearing seat two (503) are rotatably connected by bearings. The follow-up base plate (505) and the bearing seat one (502) are rotatably connected by bearings. A rotor core can be placed on the follow-up top plate (504).

6. The precision anti-deviation assembly equipment for permanent magnet motor rotor magnets according to claim 1, characterized in that: The annular adsorption element (4) includes multiple arc-shaped electromagnets, and there are two annular adsorption elements (4).

7. The precision anti-deviation assembly equipment for permanent magnet motor rotor magnets according to claim 5, characterized in that: The magnetic suction limiting assembly (6) includes an adjusting push rod (601) fixedly installed on the follower base plate (505). The telescopic end of the adjusting push rod (601) is fixedly connected to an adjusting plate (602). The adjusting plate (602) is slidably engaged with the connecting column (506). The lower part of the adjusting plate (602) is provided with a magnetic suction element (604). The connecting column (506) is uniformly provided with limiting holes (605). The center of the adjusting plate (602) is fixedly connected to a limiting column (603). The limiting column (603) can pass through the follower top plate (504) to limit the rotor core to be assembled.

8. The precision anti-deviation assembly equipment for permanent magnet motor rotor magnets according to claim 7, characterized in that: The magnetic attractor (604) includes a sliding frame (6041) slidably mounted on a connecting post (506). A partition plate (6044) is provided inside the sliding frame (6041). A sliding rod (6045) is slidably connected to the sliding frame (6041). A limiting spring (6046) is sleeved on the sliding rod (6045). The limiting spring (6046) is located inside the sliding frame (6041). One end of the sliding rod (6045) extending into the sliding frame (6041) is fixedly connected to… There is a movable plate (6042), and a limiting head (6043) is fixedly connected to one end of the movable plate (6042) near the connecting column (506). The limiting head (6043) can pass through the partition plate (6044) and be inserted into the limiting hole (605). A permanent magnet (6048) is fixedly connected to the movable plate (6042). A square electromagnet (6047) is fixedly installed on the inner side of the sliding frame (6041). The square electromagnet (6047) can attract the permanent magnet (6048) when it is energized.

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