Motor magnetic steel mounting device

By designing an automated magnet installation device, the problem of low magnet installation efficiency in existing technologies has been solved, realizing automated and precise alignment and installation of magnets and housings, thereby improving production efficiency.

CN224289567UActive Publication Date: 2026-05-26NINGBO JIESHENG MOTOR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO JIESHENG MOTOR CO LTD
Filing Date
2025-07-14
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The installation efficiency of magnets in existing DC brushed motors is low, mainly relying on manual operation, which leads to low efficiency.

Method used

A motor magnet installation device was designed, including a magnet conveying frame, a pushing component, a housing pushing mechanism, and a rotating component, which realizes precise alignment and installation of the magnet and the housing through an automated production line.

Benefits of technology

It improves the efficiency of magnet installation, realizes automated and precise alignment and installation of magnets and housing, reduces manual operation, and improves production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a motor magnetic steel mounting device, which comprises a workbench, and the workbench is provided with a magnetic steel mounting station; the magnetic steel conveying frame comprises a first frame body and a second frame body which are arranged on the two sides of the magnetic steel mounting station, and the first frame body and the second frame body are each provided with a first guide groove for containing the magnetic steel; the magnetic steel pushing assembly is arranged below the magnetic steel mounting station, the magnetic steel pushing assembly comprises a magnetic steel pushing air cylinder and a magnetic steel pushing rod connected with the magnetic steel pushing air cylinder, and the end portion of the magnetic steel pushing rod is provided with a matching face for magnetic steel to be attached to; wherein the workbench is provided with a mounting port at the magnetic steel mounting station, and the magnetic steel push rod is arranged below the mounting port. The magnetic steel is placed in the first guide grooves of the first frame body and the second frame body so that continuous feeding can be achieved, the magnetic steel push rod is driven by the magnetic steel push air cylinder to move towards one side of the magnetic steel installation station, and finally the two pieces of magnetic steel are pushed into a motor shell placed in the magnetic steel installation station so that the installation efficiency of the magnetic steel can be improved.
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Description

Technical Field

[0001] This application relates to the technical field of motor manufacturing, and in particular to a motor magnet mounting device. Background Technology

[0002] The structure of a DC brushed motor generally includes a housing, a stator, and a rotor. For example... Figure 1 and Figure 2 As shown, the stator (magnet) is attached to the inner wall of the housing. Two limiting blocks are formed inward on the housing by stamping. One end of each magnet abuts against the limiting block, and the other end is pressed together by a snap ring. Currently, the installation of magnets inside the housing is generally done manually, which is inefficient. Utility Model Content

[0003] To improve the installation efficiency of magnets, this application provides a motor magnet mounting device.

[0004] The motor magnet mounting device provided in this application adopts the following technical solution:

[0005] A motor magnet mounting device, comprising:

[0006] The workbench has a magnet mounting station;

[0007] A magnet conveying frame, comprising a first frame and a second frame positioned on either side of a magnet installation station, both the first and second frames having a first guide groove for receiving the magnet; and

[0008] A magnet pushing assembly is placed below the magnet installation station. The magnet pushing assembly includes a magnet pushing cylinder and a connected magnet push rod. The end of the magnet push rod has a mating surface for the magnet to come into contact with it.

[0009] The workbench has an installation opening at the magnet installation position, and the magnet push rod is placed below the installation opening.

[0010] Preferably, the magnetic steel conveying frame further includes a connecting frame connecting the first frame and the second frame, the connecting frame having a second guide groove connecting the two first guide grooves, and the magnetic steel push rod being slidably connected to the connecting frame.

[0011] Preferably, the first frame and / or the second frame are inclined, and the ends of the first frame and the second frame extend toward each other.

[0012] Preferably, the magnet installation station further includes a pressure block installed on the workbench, the pressure block having a limiting groove for receiving the bearing seat at the end of the housing; wherein, the pressure block is also provided with a first photoelectric sensor electrically connected to the magnet pushing cylinder, the first photoelectric sensor extending into the magnet installation station.

[0013] Preferably, a first limiting part and a second limiting part are respectively provided on both sides of the mating surface, so that when the magnet abuts against the mating surface, the two ends of the magnet abut against the first limiting part and the second limiting part respectively.

[0014] Preferably, it further includes a housing pushing mechanism, the housing pushing mechanism comprising:

[0015] A shell vibratory feeder, wherein a shell conveying channel is provided on the worktable, and the shell vibratory feeder is connected to the shell conveying channel;

[0016] A first housing pushing assembly, the first housing pushing assembly including a first housing pushing cylinder, the first housing pushing cylinder being placed on one side of the housing conveying channel;

[0017] The second housing pushing assembly is used to receive the housing pushed by the first housing pushing cylinder. The second housing pushing assembly includes a second housing pushing cylinder and a limiting plate connected to the second housing pushing cylinder.

[0018] The third housing pushing assembly includes a third housing pushing cylinder and a limiting seat connected to the third housing pushing cylinder;

[0019] Both the limiting plate and the limiting seat can be displaced toward the magnet installation station.

[0020] Preferably, it further includes a housing rotation assembly, the housing rotation assembly comprising:

[0021] Press-fit cylinder;

[0022] A servo motor is connected below the press-fit cylinder;

[0023] A press-fitting base, connected to a servo motor, is provided with a press-fitting groove; and

[0024] The second photoelectric sensor is electrically connected to the servo motor;

[0025] Each workbench also has a housing rotation and pushing station, the pressing seat is placed above the housing rotation and pushing station, and one end of the second photoelectric sensor extends into the housing rotation and pushing station.

[0026] Preferably, it also includes a feeding assembly, which includes a feeding cylinder, a feeding plate connected to the feeding cylinder, and a feeding hopper, wherein the feeding cylinder is located on one side of the magnet installation station.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. By placing the magnets in the first guide grooves of the first and second frames, continuous feeding can be achieved. Under the mutual attraction, the two magnets move toward the second guide groove of the connecting frame and finally abut against the mating surface of the magnet push rod. The magnet push rod moves toward the magnet installation station under the drive of the magnet pushing cylinder, and finally pushes the two magnets into the motor housing placed in the magnet installation station to improve the installation efficiency of the magnets.

[0029] 2. By setting up a shell pushing mechanism, the shell can be continuously fed from the shell vibratory plate into the shell conveying channel, and combined with multiple pushing components, the shell is pushed to the shell rotation pushing station. With the help of the shell rotation component, the shell is pushed to the magnet installation station at a fixed circumferential angle without the need for manual operation to place the shell, which further improves the installation efficiency of the magnet. Attached Figure Description

[0030] Figure 1 This is an exploded view of the assembly of the shell and the magnet.

[0031] Figure 2 This is a schematic diagram showing the installation of the magnet inside the housing;

[0032] Figure 3 A schematic diagram of the motor magnet mounting device;

[0033] Figure 4 This is a schematic diagram showing the connection between the magnetic steel pushing assembly and the magnetic steel conveyor frame;

[0034] Figure 5 This is a structural schematic diagram of the magnet pushing assembly;

[0035] Figure 6 This is an exploded view of the relationship between the magnet push rod and the magnet from one perspective.

[0036] Figure 7 This is an exploded view of the relationship between the magnet push rod and the magnet from another perspective.

[0037] Figure 8 This is a schematic diagram showing the position of the second photoelectric sensor and the housing in the housing rotation and pushing position.

[0038] Figure 9 This is a schematic diagram showing the structure of the housing pushing mechanism on the worktable;

[0039] Figure 10 This is a schematic diagram of the rotating housing assembly.

[0040] Explanation of reference numerals in the attached drawings: 1. Housing; 11. Bearing seat; 12. Limiting block; 2. Magnet; 3. Snap ring; 100. Worktable; 110. Magnet mounting station; 111. Mounting port; 112. Pressing block; 113. Limiting groove; 120. Housing rotation and pushing station; 121. Second photoelectric sensor; 200. Frame; 300. Magnet conveying frame; 310. First frame; 320. Second frame; 330. Connecting frame; 340. First guide groove; 350. Second guide groove; 400. Magnet pushing assembly; 410. Magnet pushing cylinder; 420. Magnet push rod; 421. Mating surface; 422. First Limiting part; 423, second limiting part; 430, connecting seat; 440, sliding seat; 450, base; 500, shell pushing mechanism; 510, shell vibrating plate; 520, shell conveying channel; 530, first shell pushing cylinder; 531, pushing plate; 540, second shell pushing cylinder; 550, limiting plate; 560, third shell pushing cylinder; 570, limiting seat; 600, unloading assembly; 610, unloading cylinder; 620, unloading hopper; 630, unloading channel; 700, shell rotating assembly; 710, pressing cylinder; 720, servo motor; 730, pressing seat; 731, pressing groove. Detailed Implementation

[0041] The present application will be further described in detail below with reference to the accompanying drawings.

[0042] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0044] Figure 3 The structure of a motor magnet mounting device is shown, including a frame 200, a worktable 100 mounted on the frame 200, a magnet conveying frame 300 connected to both sides of the worktable 100, a magnet pushing assembly 400 mounted below the worktable 100, a housing pushing mechanism 500, a housing rotating assembly 700, and a feeding assembly 600.

[0045] See also Figure 4 and Figure 5 The magnet conveyor frame 300 includes a first frame 310 and a second frame 320 distributed on both sides of the workbench 100. Both the first frame 310 and the second frame 320 are mounted on the frame 200 and have a first guide groove 340 of the same width. The width of the first guide groove 340 can be adapted to the width of the magnet 2 to be installed.

[0046] The first frame 310 and / or the second frame 320 are inclined relative to the horizontal plane. In this embodiment, the first frame 310 is inclined, and the second frame 320 is placed horizontally, with the lowest point of the first frame 310 extending towards the side of the second frame 320. The magnet conveying frame 300 also includes a connecting frame 330, which is installed below the workbench 100 and connected at both ends to the first frame 310 and the second frame 320, respectively. The connecting frame 330 has a second guide groove 350, which connects to the two first guide grooves 340. The magnet 2 placed in the first frame 310 always tends to move towards each other under the influence of gravity and the attractive force of the magnet 2 in the second frame 320, and the magnet 2 can enter the second guide groove 350 from the first guide groove 340 in a state of waiting to be lifted and installed.

[0047] The magnet pushing assembly 400 includes a base 450 mounted on a frame 200. A magnet pushing cylinder 410 is mounted below the base 450. The magnet pushing cylinder 410 is connected to a connecting seat 430, which is slidably connected to the base 450 via a sliding seat 440. A magnet push rod 420 is also fixed on the connecting seat 430 and is slidably connected to the connecting frame 330.

[0048] Combination Figure 6 and Figure 7 The magnet push rod 420 is generally cylindrical, and its end region is stepped with the lower main body by an annular groove. The end of the magnet push rod 420 has two symmetrically distributed arc-shaped mating surfaces 421, which can be fitted against the inner wall of the magnet 2. Furthermore, a first limiting portion 422 and a second limiting portion 423 extend outward from both sides of the two mating surfaces 421. When the inner wall of the magnet 2 is in contact with the mating surface 421, both ends of the magnet 2 abut against the first limiting portion 422 and the second limiting portion 423 respectively to inhibit further movement of the magnet 2 in one direction.

[0049] Combination Figures 8 to 10The workbench 100 has a magnet mounting station 110 with a mounting opening 111. The end of the magnet push rod 420 is positioned below the mounting opening 111 and can extend into the magnet mounting station 110 in the direction of the mounting opening 111. Furthermore, the mounting opening 111 is only large enough for two magnets 2 to pass through after they are attached to the magnet push rod 420. When the magnet push rod 420 is reset, the two mating surfaces 421 are placed in the second guide groove 350 to facilitate the mutual attraction and movement of the new magnets 2 on both sides, thereby achieving the pushing of the magnets 2 one by one.

[0050] Above the magnet installation station 110, a pressure block 112 is also provided. The height between the pressure block 112 and the worktable 100 is slightly greater than the height of the housing 1 so that the housing 1 can pass through smoothly. The pressure block 112 has a limiting groove 113 facing the installation port 111 for receiving the bearing seat 11 at the end of the housing 1. The pressure block 112 is also equipped with a first photoelectric sensor that is electrically connected to the magnet pushing cylinder 410. The first photoelectric sensor extends into the magnet installation station 110. When the first photoelectric sensor detects that the housing 1 is placed in the magnet installation station 110, the magnet pushing cylinder 410 can be activated to drive the two magnets 2 through the installation port 111 to assemble with the housing 1.

[0051] The housing pushing mechanism 500 includes a housing vibratory feeder 510 mounted on a frame 200, a first housing pushing assembly, a second housing pushing assembly, and a third housing pushing assembly. The output end of the housing vibratory feeder 510 is connected to a housing conveying channel 520. Several housings 1 are displaced from the housing conveying channel 520 toward the first housing pushing assembly. The housings 1 are conveyed within the housing conveying channel 520, and the output of the rear housing 1 pushes the front housing 1 to move.

[0052] The first housing pushing assembly includes a first housing pushing cylinder 530 and a connected pushing plate 531; the second housing pushing assembly includes a second housing pushing cylinder 540 and a connected limiting plate 550; the third housing pushing assembly includes a third housing pushing cylinder 560 and a connected limiting seat 570. The pushing directions of the first housing pushing cylinder 530 and the third housing pushing cylinder 560 are parallel and perpendicular to the pushing direction of the second housing pushing cylinder 540.

[0053] The workbench 100 also has a housing rotation and pushing station 120. The limiting plate 550 and the limiting seat 570 can both be displaced toward the housing rotation and pushing station 120 to limit the horizontal movement of the housing 1 in the housing rotation and pushing station 120.

[0054] The housing rotation assembly 700 is installed above the housing rotation pushing station 120, including a pressing cylinder 710 and a servo motor 720 connected to the pressing cylinder 710. The output shaft of the servo motor 720 is connected to a pressing seat 730. The bottom of the pressing seat 730 is provided with a pressing groove 731 for the housing 1 top bearing seat 11 to be received.

[0055] As the housing 1 is gradually pushed from the housing conveying channel 520 to one side of the pusher plate 531, the first housing pusher cylinder 530 actuates to push one housing 1 to one side of the second housing pusher assembly. During the pushing process, the pusher plate 531 blocks the rear housing 1 to achieve one-by-one pushing. The side of the pusher plate 531 closest to the housing conveying channel 520 is a baffle. After the housing 1 is pushed to the second housing pusher assembly, the second housing pusher cylinder 540 actuates to push the housing 1 to the housing rotation pusher station 120 through the limiting plate 550. At the same time, the third housing pusher cylinder 560 actuates to drive the limiting seat 570 to move in one direction toward the housing rotation pusher station 120. Under the combined action of the limiting plate 550 and the limiting seat 570, the housing 1 is suppressed from horizontal movement.

[0056] A second photoelectric sensor 121 is provided on one side of the housing rotation pushing station 120. The second photoelectric sensor 121 is electrically connected to the servo motor 720 and is used to detect the rotation position of the housing 1. When the servo motor 720 drives the housing 1 to rotate, the second photoelectric sensor 121 identifies the rotation position of the housing 1. The rotation angle of the servo motor 720 is identified and determined by the protruding or recessed features on the housing 1. After confirming that the housing 1 has rotated to the specified angle, the limit plate 550 is reset and the limit seat 570 pushes the housing 1 to the magnet installation station 110 for magnet 2 installation.

[0057] After the installation of magnet 2 is completed, magnet push rod 420 resets, and limit seat 570 continues to push housing 1 toward the feeding assembly 600. The feeding assembly 600 includes feeding cylinder 610 and a connected feeding plate. A feeding channel 630 is provided on the worktable 100. Limit seat 570 pushes housing 1 into the feeding channel 630, and finally, the feeding cylinder 610 drives the feeding plate to move, pushing housing 1 out of the feeding channel 630 and into the feeding hopper 620 of the feeding channel 630 for recycling. It should be noted that the control module for the operation of each cylinder in this device uses a PLC or a microcontroller.

[0058] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An electric machine magnetic steel mounting device, characterized by, include: A workbench (100) having a magnet mounting station (110). A magnet conveying frame (300) includes a first frame (310) and a second frame (320) located on both sides of a magnet installation station (110). Both the first frame (310) and the second frame (320) are provided with a first guide groove (340) for receiving the magnet (2). A magnet pushing assembly (400) is placed below the magnet installation station (110). The magnet pushing assembly (400) includes a magnet pushing cylinder (410) and a connected magnet push rod (420). The end of the magnet push rod (420) has a mating surface (421) for the magnet (2) to fit together. The workbench (100) has an installation port (111) at the magnet installation station (110), and the magnet push rod (420) is placed below the installation port (111).

2. The motor magnetic steel mounting device of claim 1, wherein, The magnetic steel conveying frame (300) also includes a connecting frame (330) connecting the first frame (310) and the second frame (320). The connecting frame (330) has a second guide groove (350) that connects the two first guide grooves (340). The magnetic steel push rod (420) is slidably connected to the connecting frame (330).

3. The motor magnetic steel mounting device according to claim 1 or 2, characterized in that, The first frame (310) and / or the second frame (320) are inclined, and the ends of the first frame (310) and the second frame (320) extend towards each other.

4. The motor magnetic steel mounting device of claim 1, wherein, The magnet installation station (110) also includes a pressure block (112) installed on the workbench (100). The pressure block (112) has a limiting groove (113) for receiving the bearing seat (11) at the end of the housing (1). The pressure block (112) is also provided with a first photoelectric sensor electrically connected to the magnet pushing cylinder (410). The first photoelectric sensor extends into the magnet installation station (110).

5. The motor magnetic steel mounting device of claim 1, wherein The mating surface (421) is provided with a first limiting part (422) and a second limiting part (423) on both sides. When the magnet (2) abuts against the mating surface (421), the two ends of the magnet (2) abut against the first limiting part (422) and the second limiting part (423) respectively.

6. The motor magnetic steel mounting device of claim 1, wherein, It also includes a housing pushing mechanism (500), the housing pushing mechanism (500) comprising: The shell vibrating plate (510) is provided with a shell conveying channel (520) on the worktable (100), and the shell vibrating plate (510) is connected to the shell conveying channel (520). A first housing pushing assembly, the first housing pushing assembly including a first housing pushing cylinder (530), the first housing pushing cylinder (530) being placed on one side of the housing conveying channel (520); The second housing pushing assembly is used to receive the housing (1) pushed by the first housing pushing cylinder (530). The second housing pushing assembly includes a second housing pushing cylinder (540) and a limiting plate (550) connected to the second housing pushing cylinder (540). The third housing pushing assembly includes a third housing pushing cylinder (560) and a limiting seat (570) connected to the third housing pushing cylinder (560). Both the limiting plate (550) and the limiting seat (570) can be displaced toward the magnet installation station (110).

7. The motor magnetic steel mounting device of claim 6, wherein, It also includes a housing rotation assembly (700), which includes: Press-fit cylinder (710); A servo motor (720) is connected below the press-fit cylinder (710); A press-fitting base (730) is connected to a servo motor (720), and the press-fitting base (730) has a press-fitting groove (731); and The second photoelectric sensor (121) is electrically connected to the servo motor (720). Each workbench (100) also has a housing rotation and pushing station (120), the pressing seat (730) is placed above the housing rotation and pushing station (120), and one end of the second photoelectric sensor (121) extends into the housing rotation and pushing station (120).

8. The motor magnetic steel mounting device of claim 1, wherein, It also includes a feeding assembly (600), which includes a feeding cylinder (610), a feeding plate connected to the feeding cylinder (610), and a feeding hopper (620). The feeding cylinder (610) is located on one side of the magnet installation station (110).