A micro motor magnet mounting positioning device

Abstract

The utility model provides a kind of micro motor magnet installation positioning device, including positioning collar, the lower surface of the positioning collar is equipped with limit groove, the inside of the limit groove is provided with positioning assembly, the positioning assembly includes locating block, limit block, locating post, mounting hole, sliding slot, limit frame and sliding block;The limit block is fixedly connected to the top of locating block.The utility model is installed when locating block, by inserting locating post into locating hole, the position of locating block can be limited fixed, make locating block and positioning collar form stable connection, locating block does not appear loose or drop condition, realize the effective constraint positioning of motor magnet, so as to install magnet on motor, and under the impetus of spring, locating post is always subjected to upward force, and then locating post does not come out from locating hole, enhance the stability of locating block.

Description

Technical Field

[0001] This utility model relates to a positioning device, specifically a micro-motor magnet mounting positioning device, belonging to the field of micro-motor magnet mounting technology. Background Technology

[0002] Currently, electric motors mainly use neodymium iron boron (NdFeB) strong magnetic materials, including sintered magnets and bonded magnets. Permanent magnet motors using NdFeB magnets are small in size, lightweight, have a high torque-to-inertia ratio, high servo system response, high power and speed-to-weight ratio, high starting torque, and save electricity. The magnets used in motors are mostly tile-shaped, ring-shaped, or trapezoidal, and can be used in various motors, such as permanent magnet motors, AC motors, DC motors, linear motors, and brushless motors. Currently, positioning devices are usually used during the installation of motor magnets to ensure the accuracy of magnet installation.

[0003] A Chinese utility model patent (publication number: CN213937692U) discloses a positioning device for installing magnets in a micro motor. Through a protective layer, it prevents wear between the positioning collar and the motor during use. The positioning block facilitates the limiting and segmentation of the magnets, making magnet positioning convenient. The positioning block can be adjusted in position according to different magnet sizes via connecting pins and fixing holes, making positioning relatively easy.

[0004] The positioning block is installed by plugging it in. This installation method has obvious defects. After the positioning block is inserted into the positioning collar and fixed, the connection between the two is not firm and cannot form a stable combination. Therefore, the positioning block is very easy to loosen or fall off. Once it loosens or falls off, the magnet loses its effective constraint and is very likely to fall out of the positioning block, resulting in the magnet breaking and being damaged. To address this, a micro-motor magnet installation and positioning device is proposed. Utility Model Content

[0005] In view of this, the present invention provides a micro-motor magnet mounting and positioning device to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial option.

[0006] The technical solution of this utility model embodiment is implemented as follows: a micro motor magnet mounting and positioning device includes a positioning collar, a limiting groove is formed on the lower surface of the positioning collar, and a positioning component is provided inside the limiting groove. The positioning component includes a positioning block, a limiting block, a positioning post, a mounting hole, a sliding groove, a limiting frame, and a sliding block.

[0007] The limiting block is fixedly connected to the top of the positioning block. The mounting hole is opened at the top of the limiting block and extends into the interior of the positioning block. The sliding groove is opened on the outer side wall of the positioning block and communicates with the mounting hole. The sliding block is fixedly connected to the outer side wall of the positioning post. The limiting frame is fixedly connected to the outer side wall of the positioning block. The inner side wall of the limiting frame is symmetrically fixedly connected with limiting protrusions. The outer side wall of the sliding block is symmetrically fixedly connected with grooves. The size of the grooves is adapted to the size of the limiting protrusions. A spring is provided inside the mounting hole.

[0008] More preferably, the positioning post is slidably connected to the inner wall of the mounting hole, and the sliding block is slidably connected to the inner wall of the limiting frame.

[0009] More preferably, one end of the spring abuts against the bottom end of the positioning post, and the other end of the spring abuts against the inner bottom wall of the mounting hole.

[0010] More preferably, the outer side wall of the positioning block has two symmetrical positioning grooves, and the inside of the positioning grooves is bonded with a rubber pad.

[0011] More preferably, the shape of the limiting block is adapted to the shape of the limiting groove, and the limiting block is slidably connected to the inner wall of the limiting groove.

[0012] More preferably, the upper surface of the positioning collar is provided with a positioning hole, which is connected to the limiting groove.

[0013] More preferably, the top end of the positioning post is inserted into the inner wall of the positioning hole.

[0014] More preferably, the lower surface of the positioning collar has an installation opening, which communicates with the limiting groove, and the shape of the installation opening is adapted to the shape of the limiting block.

[0015] The present invention has the following advantages due to the adoption of the above technical solution:

[0016] This invention allows a limiting block to be inserted into a limiting groove through an installation port. The limiting block slides within the groove, and under the push of a spring, a positioning pin is inserted into a positioning hole, thus completing the installation of the positioning block. Compared to existing technologies, this invention, by inserting the positioning pin into the positioning hole during installation, can fix the position of the positioning block, forming a stable connection between the positioning block and the positioning collar. The positioning block will not loosen or fall off, effectively constraining and positioning the motor magnet for installation on the motor. Furthermore, under the push of the spring, the positioning pin is always subjected to an upward force, preventing it from detaching from the positioning hole and enhancing the stability of the positioning block.

[0017] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is an overall structural diagram of the present invention;

[0020] Figure 2 This is a structural diagram of the positioning collar of this utility model;

[0021] Figure 3 This is a structural diagram of the positioning component of this utility model;

[0022] Figure 4 This is an exploded view of the positioning component structure of this utility model;

[0023] Figure 5 This is a structural diagram of the limiting frame of this utility model.

[0024] Reference numerals: 101, positioning component; 11, positioning block; 12, limiting block; 13, positioning post; 14, mounting hole; 15, sliding groove; 16, limiting frame; 18, groove; 19, sliding block; 20, limiting protrusion; 21, spring; 22, positioning groove; 23, rubber pad; 31, positioning collar; 32, mounting port; 33, limiting groove; 34, positioning hole. Detailed Implementation

[0025] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0026] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0027] like Figures 1-5As shown, this utility model embodiment provides a micro motor magnet mounting and positioning device, including a positioning collar 31. A limiting groove 33 is formed on the lower surface of the positioning collar 31. A positioning component 101 is provided inside the limiting groove 33. The positioning component 101 includes a positioning block 11, a limiting block 12, a positioning post 13, a mounting hole 14, a sliding groove 15, a limiting frame 16, and a sliding block 19.

[0028] The limiting block 12 is fixedly connected to the top of the positioning block 11. The limiting block 12 and the positioning block 11 are an integral structure. The mounting hole 14 is opened on the top of the limiting block 12 and extends into the interior of the positioning block 11. The positioning post 13 is slidably connected to the inner wall of the mounting hole 14. The position of the positioning post 13 can be limited through the mounting hole 14. The positioning post 13 can slide up or down in the mounting hole 14.

[0029] The slide groove 15 is formed on the outer side wall of the positioning block 11 and communicates with the mounting hole 14. The sliding block 19 is fixedly connected to the outer side wall of the positioning post 13. The sliding block 19 slides in the slide groove 15. When the sliding block 19 is pushed, the sliding block 19 drives the positioning post 13, which can adjust the position of the positioning post 13.

[0030] The limiting frame 16 is fixedly connected to the outer side wall of the positioning block 11. The inner side wall of the limiting frame 16 is symmetrically fixedly connected to the limiting protrusion 20. The outer side wall of the sliding block 19 is symmetrically fixedly connected to the groove 18. The size of the groove 18 is adapted to the size of the limiting protrusion 20. The sliding block 19 is slidably connected to the inner side wall of the limiting frame 16. The limiting protrusion 20 is located at the bottom of the inner side wall of the limiting frame 16. When the sliding block 19 is pushed down, the sliding block 19 moves to the position corresponding to the limiting protrusion 20. The limiting protrusion 20 is inserted into the inside of the groove 18, thereby limiting the position of the sliding block 19 and the positioning post 13.

[0031] In one embodiment, the shape of the limiting block 12 is adapted to the shape of the limiting groove 33. The limiting block 12 is slidably connected to the inner wall of the limiting groove 33. When the positioning block 11 is pushed, the positioning block 11 drives the limiting block 12 to slide in the limiting groove 33. At this time, the position of the positioning block 11 can be adjusted according to the size of the motor magnet to suit motor magnets of different sizes.

[0032] The upper surface of the positioning collar 31 is provided with a positioning hole 34, which is connected to the limiting groove 33. The top end of the positioning post 13 is inserted into the inner wall of the positioning hole 34. When the limiting block 12 slides in the limiting groove 33, it drives the positioning post 13. After the positioning block 11 is adjusted, the positioning post 13 is inserted into the positioning hole 34, and the position of the positioning block 11 is fixed. A stable connection is formed between the positioning block 11 and the positioning collar 31. The positioning block 11 will not loosen or fall off, thus achieving effective constraint and positioning of the motor magnet so that the magnet can be installed on the motor.

[0033] A spring 21 is installed inside the mounting hole 14. One end of the spring 21 abuts against the bottom end of the positioning post 13, and the other end of the spring 21 abuts against the inner bottom wall of the mounting hole 14. Under the push of the spring 21, the positioning post 13 is always subjected to an upward force, so the positioning post 13 will not come out of the positioning hole 34, thus enhancing the stability of the positioning block 11.

[0034] In one embodiment, two positioning grooves 22 are symmetrically formed on the outer side wall of the positioning block 11. A rubber pad 23 is bonded inside the positioning groove 22. When the magnet is installed, the magnet is installed in the positioning groove 22 inside the positioning block 11. The positioning groove 22 can limit the position of the magnet, while the rubber pad 23 can prevent the magnet from bumping or hitting.

[0035] In one embodiment, the lower surface of the positioning collar 31 is provided with an installation port 32, which is connected to the limiting groove 33. The shape of the installation port 32 is adapted to the shape of the limiting block 12. The number of positioning blocks 11 can be increased or decreased through the installation port 32. When the limiting block 12 slides to the position of the installation port 32, the limiting block 12 can be taken out from the limiting groove 33, thereby reducing the number of positioning blocks 11. Similarly, a new positioning block 11 can be installed through the installation port 32.

[0036] When this utility model is in operation: Positioning block 11 is installed, sliding block 19 is pushed downwards, and sliding block 19 moves to a position corresponding to limiting protrusion 20. Limiting protrusion 20 is engaged in the interior of groove 18. At this time, the positions of sliding block 19 and positioning post 13 are fixed, and spring 21 is compressed. Limiting block 12 is inserted into limiting groove 33 through mounting port 32, and then limiting block 12 is pushed to slide in limiting groove 33. The position of positioning block 11 is adjusted, positioning post 13 is aligned with positioning hole 34, and then sliding block 19 is pushed upwards, causing limiting protrusion 20 to disengage from groove 18. Under the push of spring 21, positioning post 13 is inserted into positioning hole 34. One positioning block 11 is installed. Positioning blocks 11 are installed according to the number of magnets. After the positioning blocks 11 are installed, magnets are inserted into positioning groove 22 between two positioning blocks 11. At this time, the positioning of the magnets is completed, and the magnets can be installed.

[0037] Compared with the prior art, when installing the positioning block 11, this utility model can limit the position of the positioning block 11 by inserting the positioning post 13 into the positioning hole 34, so that a stable connection is formed between the positioning block 11 and the positioning collar 31. The positioning block 11 will not loosen or fall off, and the effective constraint and positioning of the motor magnet is achieved so that the magnet can be installed on the motor. Moreover, under the push of the spring 21, the positioning post 13 is always subjected to an upward force, so the positioning post 13 will not fall out of the positioning hole 34, thus enhancing the stability of the positioning block 11.

[0038] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A micro-motor magnet mounting and positioning device, comprising a positioning collar (31), characterized in that: The lower surface of the positioning collar (31) is provided with a limiting groove (33), and a positioning component (101) is provided inside the limiting groove (33). The positioning component (101) includes a positioning block (11), a limiting block (12), a positioning post (13), a mounting hole (14), a sliding groove (15), a limiting frame (16), and a sliding block (19). The limiting block (12) is fixedly connected to the top of the positioning block (11). The mounting hole (14) is opened at the top of the limiting block (12) and extends into the interior of the positioning block (11). The sliding groove (15) is opened on the outer side wall of the positioning block (11) and communicates with the mounting hole (14). The sliding block (19) is fixedly connected to the outer side wall of the positioning post (13). The limiting frame (16) is fixedly connected to the outer side wall of the positioning block (11). The inner side wall of the limiting frame (16) is symmetrically fixedly connected with limiting protrusions (20). The outer side wall of the sliding block (19) is symmetrically fixedly connected with grooves (18). The size of the grooves (18) is adapted to the size of the limiting protrusions (20). A spring (21) is provided inside the mounting hole (14).

2. The micro-motor magnet mounting and positioning device according to claim 1, characterized in that: The positioning post (13) is slidably connected to the inner wall of the mounting hole (14), and the sliding block (19) is slidably connected to the inner wall of the limiting frame (16).

3. The micro-motor magnet mounting and positioning device according to claim 2, characterized in that: One end of the spring (21) abuts against the bottom end of the positioning post (13), and the other end of the spring (21) abuts against the inner bottom wall of the mounting hole (14).

4. The micro-motor magnet mounting and positioning device according to claim 1, characterized in that: The outer side wall of the positioning block (11) has two symmetrical positioning grooves (22), and a rubber pad (23) is bonded inside the positioning groove (22).

5. The micro-motor magnet mounting and positioning device according to claim 1, characterized in that: The shape of the limiting block (12) is adapted to the shape of the limiting groove (33), and the limiting block (12) is slidably connected to the inner wall of the limiting groove (33).

6. The micro-motor magnet mounting and positioning device according to claim 5, characterized in that: The upper surface of the positioning collar (31) is provided with a positioning hole (34), which is connected to the limiting groove (33).

7. A micro-motor magnet mounting and positioning device according to claim 6, characterized in that: The top end of the positioning pin (13) is inserted into the inner wall of the positioning hole (34).

8. The micro-motor magnet mounting and positioning device according to claim 7, characterized in that: The lower surface of the positioning collar (31) is provided with an installation port (32), which is connected to the limiting groove (33). The shape of the installation port (32) is adapted to the shape of the limiting block (12).

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