A positioning assembly jig for ring magnetic group

Abstract

The utility model relates to magnet assembly jig technical field, concretely discloses a kind of positioning assembly jigs for annular magnetic group, including positioning base plate and positioning top plate, positioning base plate is equipped with the placement slot for placing annular magnetic group, the bottom of positioning top plate is equipped with the profiling groove compatible with annular magnetic group, profiling groove is equipped with multiple spaced arrangement and form annular clamping groove, clamping groove is used to fixedly arrange the first class magnet in annular magnetic group, positioning top plate is equipped with several assembly through-holes being communicated with positioning cavity, assembly through-hole is spaced apart along the same annular trajectory with clamping groove, and staggered arrangement between with clamping groove, assembly through-hole is used to second class magnet is loaded into the interval between adjacent first class magnet.The utility model is adapted to two kinds of magnets by clamping groove and staggered assembly through-hole, improves alignment accuracy, simplifies operation procedure, significantly improves assembly efficiency, solves the problem that existing assembly jig lacks special double positioning structure, meets the demand of large scale.

Description

Technical Field

[0001] This utility model relates to the field of magnet assembly fixture technology, specifically to a positioning assembly fixture for a ring magnet assembly. Background Technology

[0002] In the field of wireless charging receiver assembly for mobile phones, to achieve precise magnetic alignment between the phone and charger and ensure energy transmission efficiency, a single type of multi-segment magnet needs to be deployed on the ring-shaped carrier of the receiver, forming a positioning magnetic circuit through an array arrangement. Currently, to further improve the alignment accuracy of the phone and charger and reduce magnetic field interference, the industry is gradually developing a need to assemble two different types of magnets on the ring-shaped carrier of the receiver. The two types of magnets need to be alternately distributed at fixed intervals to optimize the magnetic circuit performance.

[0003] However, existing assembly fixtures lack a dedicated dual-positioning structure. Existing tooling only has a single-specification magnet positioning slot, which cannot match the size differences between the two types of magnets. Misalignment is prone to occur during clamping, resulting in tolerances in the relative positions of the two types of magnets. This leads to increased charging alignment deviations and decreased efficiency. At the same time, existing assembly fixtures lack a collaborative assembly design. The first type of magnet must be manually installed first, and then a simple fixture must be used to install the second type of magnet. This repeated clamping process is cumbersome and inefficient, making it difficult to meet the needs of large-scale assembly. Furthermore, the secondary clamping is prone to further increasing the relative position tolerances of the two types of magnets due to the offset of the positioning reference, which further affects the assembly accuracy. Utility Model Content

[0004] To address the shortcomings of the existing technology, this utility model provides a positioning and assembly fixture for a ring-shaped magnetic assembly. It adapts to two types of magnets through slots and staggered assembly through holes, and fixes the position through the positioning cavity, thereby improving alignment accuracy, simplifying the operation process, significantly improving assembly efficiency, solving the problem of the lack of a dedicated dual positioning structure in existing assembly fixtures, and meeting the needs of large-scale production.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A positioning and assembly fixture for a ring-shaped magnetic assembly includes a positioning base plate and a positioning top plate. The positioning top plate is detachably fitted onto the positioning base plate. The positioning base plate has a placement groove for placing the ring-shaped magnetic assembly. The bottom of the positioning top plate has a contour groove adapted to the ring-shaped magnetic assembly. When the positioning top plate is fitted onto the positioning base plate, a positioning cavity is formed between the placement groove and the contour groove. The contour groove has multiple spaced slots forming a ring shape. The slots are used to fix first-type magnets spaced apart in the ring-shaped magnetic assembly. The positioning top plate has several assembly through holes communicating with the positioning cavity. The assembly through holes and the slots are spaced apart along the same ring trajectory and are staggered with each other. The assembly through holes are used to insert second-type magnets into the gaps between adjacent first-type magnets.

[0007] Preferably, the first type of magnets in the annular magnetic assembly are arranged at intervals in the form of combined units, each combined unit containing at least two first type of magnets arranged side by side, and each combined unit is adapted to a slot in the contour groove.

[0008] Preferably, the annular magnetic assembly is fixed in the placement groove by a release film. The size of the release film is adapted to the size of the placement groove. At least two first positioning posts are provided in the placement groove. The release film is provided with first positioning holes adapted to the first positioning posts. The position of the annular magnetic assembly is positioned by inserting the first positioning posts into the first positioning holes.

[0009] Preferably, the bottom of the positioning top plate is provided with a second positioning hole that is adapted to the first positioning post, and the first positioning post can pass through the first positioning hole and be inserted into the second positioning hole.

[0010] Preferably, the upper edge of the positioning base plate is provided with a downwardly recessed separation groove, which is used to assist in the separation of the positioning top plate and the positioning base plate.

[0011] Preferably, the positioning base plate is provided with guide posts at all four corners, and the bottom of the positioning top plate is provided with guide holes corresponding to the guide posts.

[0012] The beneficial effects of this utility model are as follows: the positioning cavity formed by the positioning base plate and the positioning top plate can stably clamp the main body of the annular magnetic assembly; the slot of the positioning top plate is precisely matched with the first type of magnet, and the assembly through hole matches the second type of magnet, and the two are arranged alternately along the same annular trajectory, strictly ensuring that the two types of magnets are distributed alternately at a fixed interval, greatly reducing the relative position tolerance, reducing charging alignment deviation and energy transmission loss; at the same time, the assembly of the two types of magnets can be completed in one go without changing the fixture, eliminating the secondary clamping steps of the traditional process, simplifying the operation process, shortening the operation time, reducing the error risk caused by manual intervention, significantly improving assembly efficiency, and meeting the needs of large-scale assembly. Attached Figure Description

[0013] Figure 1 : This is a structural schematic diagram of an embodiment of the present utility model;

[0014] Figure 2 This is an exploded structural diagram of an embodiment of the present invention;

[0015] Figure 3 This is an exploded view of an embodiment of the present invention from a bottom angle.

[0016] Figure 4 : This is a schematic diagram of the magnetic pole distribution structure of the annular magnetic assembly according to an embodiment of this utility model;

[0017] Explanation of the symbols in the attached diagram: 10-Positioning base plate, 11-Guide post, 12-Separation groove, 13-Placement groove, 20-Positioning top plate, 21-Guide hole, 22-Second positioning hole, 23-Contouring groove, 24-Card slot, 25-Assembly through hole, 26-Second type magnet, 30-Annular magnetic assembly, 31-Release film, 32-First type magnet, 33-First positioning hole, 34-Temporary shaping adhesive ring. Detailed Implementation

[0018] To more clearly illustrate the structural features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments:

[0019] This embodiment: as follows Figure 1-4 As shown, a positioning assembly fixture for a ring-shaped magnetic assembly includes a positioning base plate 10 and a positioning top plate 20. The positioning top plate 20 is detachably fitted onto the positioning base plate 10. Guide posts 11 are provided at each of the four corners of the positioning base plate 10. The bottom of the positioning top plate 20 is provided with guide holes 21 corresponding to the guide posts 11. The guide posts 11 can be inserted into the guide holes 21 to guide the movement of the positioning top plate 20 and prevent the positioning top plate 20 from shifting or jamming during movement. The edge of the upper surface of the positioning base plate 10 is provided with a downwardly recessed separation groove 12, which is used to assist in the separation of the positioning top plate 20 from the positioning base plate 10.

[0020] The positioning base plate 10 is provided with a placement groove 13 for placing the annular magnetic assembly 30. The annular magnetic assembly 30 includes a release film 31 and twelve first-type magnets 32 disposed on the release film 31. The size of the release film 31 is adapted to the size of the placement groove 13. The placement groove 13 is provided with four first positioning posts. The release film 31 is provided with first positioning holes 33 adapted to the first positioning posts. By inserting the first positioning posts into the first positioning holes 33, the release film 31 is fixed in the placement groove 13 and the position of the first-type magnets 32 is positioned. The bottom of the positioning top plate 20 is provided with a second positioning hole 22 adapted to the first positioning posts. The first positioning posts can pass through the first positioning holes 33 and be inserted into the second positioning holes 22.

[0021] The bottom of the positioning top plate 20 is provided with a contoured groove 23 that matches the annular magnetic assembly 30. When the positioning top plate 20 is placed on the positioning bottom plate 10, a positioning cavity is formed between the placement groove 13 and the contoured groove 23. The positioning cavity can stably clamp the main body of the annular magnetic assembly 30. The contoured groove 23 is provided with six spaced-apart slots 24 that form an annular shape. The slots 24 are used to fix the first type of magnets 32 that are spaced apart in the annular magnetic assembly 30. The first type of magnets 32 are axial magnets. The first type of magnets 32 are spaced apart in the form of combination units. Each combination unit contains two first type of magnets 32 arranged side by side, and each combination unit matches one slot 24 in the contoured groove 23. The positioning top plate 20 is provided with six assembly through holes 25 that communicate with the positioning cavity. The assembly through holes 25 and the slots 24 are spaced apart along the same annular trajectory and are spaced apart from each other. The staggered arrangement and assembly through-hole 25 are used to insert the second type of magnet 26 into the gap between the combination units of adjacent first type of magnet 32. The second type of magnet 26 is a radial magnet. After the second type of magnet 26 is inserted into the gap, it is temporarily fixed by the clamping force of the positioning cavity. Subsequently, it is fixed for discharge by temporary shaping rubber ring 34. The design of the assembly through-hole 25 matching the second type of magnet 26 and the two being staggered along the same annular trajectory strictly ensures that the two types of magnets are alternately distributed at fixed intervals, which greatly reduces the relative position tolerance, reduces charging alignment deviation and energy transmission loss. At the same time, the assembly of the two types of magnets can be completed in one go without changing the fixture, eliminating the secondary clamping steps of the traditional process, simplifying the operation process, shortening the operation time, reducing the error risk caused by manual intervention, significantly improving assembly efficiency, and meeting the needs of large-scale assembly.

[0022] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Therefore, any modifications, equivalent substitutions, improvements, etc., made to the above embodiments based on the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A positioning and assembly fixture for a ring-shaped magnetic assembly, comprising a positioning base plate and a positioning top plate, wherein the positioning top plate is detachably fitted onto the positioning base plate, characterized in that: The positioning base plate has a placement slot for placing the annular magnetic assembly, and the bottom of the positioning top plate has a contoured slot adapted to the annular magnetic assembly. When the positioning top plate is closed on the positioning base plate, a positioning cavity is formed between the placement slot and the contoured slot. The contoured slot has multiple spaced slots that form an annular shape. The slots are used to fix the first type of magnets spaced apart in the annular magnetic assembly. The positioning top plate has several assembly through holes that communicate with the positioning cavity. The assembly through holes and the slots are spaced apart along the same annular trajectory and are staggered with each other. The assembly through holes are used to insert the second type of magnets into the gaps between adjacent first type of magnets.

2. The positioning and assembly fixture for a ring-shaped magnetic assembly according to claim 1, characterized in that: The first type of magnets in the annular magnetic assembly are arranged at intervals in the form of combined units. Each combined unit contains at least two first type magnets arranged side by side, and each combined unit is adapted to a slot in the contour groove.

3. A positioning and assembly fixture for a ring-shaped magnetic assembly according to claim 1, characterized in that: The annular magnetic assembly is fixed in the placement groove by a release film. The size of the release film is adapted to the size of the placement groove. At least two first positioning posts are provided in the placement groove. The release film is provided with first positioning holes adapted to the first positioning posts. The position of the annular magnetic assembly is positioned by inserting the first positioning posts into the first positioning holes.

4. A positioning and assembly fixture for a ring-shaped magnetic assembly according to claim 3, characterized in that: The bottom of the positioning top plate is provided with a second positioning hole that is adapted to the first positioning post, and the first positioning post can pass through the first positioning hole and be inserted into the second positioning hole.

5. A positioning and assembly fixture for a ring-shaped magnetic assembly according to any one of claims 1-4, characterized in that: The upper edge of the positioning base plate is provided with a downwardly recessed separation groove, which is used to assist in the separation of the positioning top plate and the positioning base plate.

6. A positioning and assembly fixture for a ring-shaped magnetic assembly according to any one of claims 1-4, characterized in that: The positioning base plate has guide posts at all four corners, and the bottom of the positioning top plate has guide holes corresponding to the guide posts.

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