An assembly tool for cutting magnetic rings

By using assembly fixtures for the upper and lower carriers, and utilizing guide posts and limiting bosses to achieve precise positioning of the magnetic ring, the problems of splicing misalignment and wire waste during magnetic ring assembly are solved, thereby improving production efficiency and reducing costs.

CN224287995UActive Publication Date: 2026-05-26SHENZHEN BOULDER ELECTRONIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN BOULDER ELECTRONIC CO LTD
Filing Date
2025-04-30
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The existing magnetic ring assembly process suffers from problems such as easy misalignment of semi-circular magnetic rings, high operational difficulty, large coil wire consumption, difficulty in inserting steel strips, and easy damage to insulating paper, resulting in low production efficiency, high cost, and poor product quality.

Method used

An assembly fixture consisting of an upper and lower support body is used. Guide posts and limiting bosses are used to achieve precise positioning and splicing of the semi-circular magnetic ring, avoiding the use of steel strips and reducing the space for steel strips to pass through the inner hole of the coil. The complete magnetic ring is formed by dispensing and curing.

Benefits of technology

It enables rapid and accurate positioning of the magnetic ring, reduces operational difficulty, decreases coil wire consumption and production costs, and improves production efficiency and product consistency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses an assembly fixture for cutting magnetic rings, including an upper support body and a lower support body. A guide post is connected to the lower support body and movably passes through the upper support body. An upper groove is formed on the bottom wall of the upper support body, and an upper limit boss is provided within the upper groove. The bottom wall of the upper limit boss has an upper U-shaped groove. A lower groove is formed on the top wall of the lower support body, and a lower limit boss is provided within the lower groove. The top wall of the lower limit boss has a lower U-shaped groove. The circumferential wall of the upper semi-circular magnetic ring can contact the top wall of the upper U-shaped groove, and the circumferential wall of the lower semi-circular magnetic ring can contact the bottom wall of the lower U-shaped groove. The upper and lower semi-circular magnetic rings are spliced ​​together to form a complete magnetic ring. This device can prevent misalignment during the splicing of semi-circular magnetic rings, eliminates the need for steel strips, and eliminates the need to reserve space for steel strip insertion in the coil inner hole, reducing the amount of coil wire used, lowering production costs, reducing operational difficulty, and improving production efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of magnetic ring assembly technology, specifically to an assembly tooling for cutting magnetic rings. Background Technology

[0002] Magnetic rings are common electronic components, primarily used to suppress high-frequency noise and electromagnetic interference in circuits. They are circular in shape and are assembled from two semi-circular magnetic rings during production. Currently, the assembly process involves first placing coils around the two semi-circular magnetic rings, then joining them together, securing them with a steel band, and finally applying adhesive and baking for curing. This assembly process presents the following problems:

[0003] 1. The two semi-circular magnetic rings are easy to assemble and misalign, making the operation difficult and the assembly efficiency low.

[0004] 2. Space needs to be reserved in the inner hole of the coil for the steel strip to pass through, which results in a high amount of coil wire used and waste of wire.

[0005] 3. The steel strip needs to be passed through the inner hole of the coil in sequence, which makes the operation difficult.

[0006] 4. The insulating paper wrapped around the steel strip is easily damaged during the steel strip insertion process, which affects the insulation performance, resulting in poor withstand voltage of the inductor and making product rework difficult.

[0007] The entire product processing is difficult, resulting in high employee fatigue, high working hours, high costs, and low competitiveness. Utility Model Content

[0008] To address the shortcomings of existing technologies, this utility model provides an assembly fixture for cutting magnetic rings. This device can prevent misalignment during the splicing of semi-circular magnetic rings, eliminates the need for steel strips, and eliminates the need to reserve space for steel strip insertion in the inner hole of the coil, thereby reducing the amount of coil wire used, lowering production costs, reducing operational difficulty, and improving production efficiency.

[0009] An assembly fixture for cutting magnetic rings includes an upper support body and a lower support body. A guide post is connected to the lower support body and movably passes through the upper support body. The bottom wall of the upper support body has an upper groove, and an upper limit boss is provided in the upper groove. The bottom wall of the upper limit boss has an upper U-shaped groove. The top wall of the lower support body has a lower groove, and a lower limit boss is provided in the lower groove. The top wall of the lower limit boss has a lower U-shaped groove. The circumferential wall of the upper semicircular magnetic ring can contact the top wall of the upper U-shaped groove, and the two side walls of the upper semicircular magnetic ring can contact the two side walls of the upper U-shaped groove respectively. The circumferential wall of the lower semicircular magnetic ring can contact the bottom wall of the lower U-shaped groove, and the two side walls of the lower semicircular magnetic ring can contact the two side walls of the lower U-shaped groove respectively. The upper and lower semicircular magnetic rings are spliced ​​together to form a complete magnetic ring.

[0010] Preferably, the upper groove is provided with 2-3 upper limit bosses.

[0011] Preferably, the lower groove is provided with 2-3 lower limit protrusions.

[0012] Preferably, the upper groove is an arc-shaped groove.

[0013] Preferably, the lower groove is an arc-shaped groove.

[0014] Preferably, guide posts are connected to the left and right sides of the top wall of the lower support body.

[0015] The beneficial effects of this utility model are as follows: This technical solution includes a guide post that movably penetrates the upper support body, guiding its movement and enabling it to move vertically in a directional manner. In practical use, the coil is fitted onto the upper and lower semi-circular magnetic rings. Adhesive is then applied to the end faces of the upper and lower semi-circular magnetic rings. The upper and lower semi-circular magnetic rings are then placed into the upper and lower support bodies, respectively. The upper support body is moved downwards until the end faces of the upper and lower semi-circular magnetic rings contact. Finally, the entire assembly is baked and cured. This device prevents misalignment of the semi-circular magnetic rings, eliminates the need for steel strips, and eliminates the need to reserve space for steel strip insertion in the coil's inner hole. This reduces the amount of coil wire used, lowers production costs, reduces operational difficulty, and improves production efficiency. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 A schematic diagram of the overall structure for the simultaneous use of multiple assembly tools.

[0019] In the attached diagram, 1-upper support body, 2-lower support body, 3-guide post, 4-upper limit boss, 5-upper U-shaped groove, 6-lower limit boss, 7-lower U-shaped groove. Detailed Implementation

[0020] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0021] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0022] Example 1

[0023] like Figures 1-2 As shown, this embodiment provides an assembly fixture for cutting magnetic rings, including an upper support body 1 and a lower support body 2. A guide post 3 is connected to the lower support body 2, and the guide post 3 movably passes through the upper support body 1. The bottom wall of the upper support body 1 has an upper groove, and an upper limit boss 4 is provided in the upper groove. The bottom wall of the upper limit boss 4 has an upper U-shaped groove 5. The top wall of the lower support body 2 has a lower groove, and a lower limit boss 6 is provided in the lower groove. The top wall of the lower limit boss 6 has a lower U-shaped groove 7. The circumferential wall of the upper semicircular magnetic ring can contact the top wall of the upper U-shaped groove 5, and the two side walls of the upper semicircular magnetic ring can contact the two side walls of the upper U-shaped groove 5 respectively. The circumferential wall of the lower semicircular magnetic ring can contact the bottom wall of the lower U-shaped groove 7, and the two side walls of the lower semicircular magnetic ring can contact the two side walls of the lower U-shaped groove 7 respectively. The upper and lower semicircular magnetic rings are spliced ​​together to form a complete magnetic ring.

[0024] In this embodiment, a guide post 3 is provided, which movably penetrates the upper support body 1 to guide the movement of the upper support body 1, enabling it to move vertically. In practical use, the coil is sleeved on the upper and lower semi-circular magnetic rings. Adhesive is then applied to the end faces of the upper and lower semi-circular magnetic rings. The upper and lower semi-circular magnetic rings are then placed inside the upper support body 1 and lower support body 2, respectively. The upper support body 1 is moved downwards, causing the end faces of the upper and lower semi-circular magnetic rings to contact and splice together to form a complete magnetic ring. Finally, the entire assembly is baked and cured. This device prevents misalignment of the semi-circular magnetic rings, eliminates the need for steel strips, and eliminates the need to reserve space for steel strip insertion in the coil's inner hole, reducing coil wire consumption, lowering production costs, reducing operational difficulty, and improving production efficiency.

[0025] By cooperating with the upper limit boss 4 and the lower limit boss 6, the two semi-circular magnetic rings can be quickly and accurately positioned without relying on visual inspection or manual alignment, which greatly reduces the difficulty of operation and ensures product consistency.

[0026] This structure eliminates the need for steel strips, saving on the amount of steel strip material and insulating paper used on the surface of the steel strip. At the same time, there is no need to reserve space for steel strip insertion in the inner hole of the coil, reducing the amount of coil wire used and lowering production costs.

[0027] This structure eliminates the need for steel strips, enabling rapid and accurate positioning, reducing operational difficulty, and improving production efficiency.

[0028] In this embodiment, the upper groove is provided with 2-3 upper limit bosses 4.

[0029] In this embodiment, 2-3 lower limit protrusions 6 are provided in the lower groove.

[0030] In this embodiment, multiple limiting bosses are used to limit the magnetic ring, and pressure is applied to the magnetic ring from multiple directions to make the magnetic ring be subjected to uniform force.

[0031] In this embodiment, the upper groove is an arc-shaped groove.

[0032] In this embodiment, the lower groove is an arc-shaped groove.

[0033] In this embodiment, guide posts 3 are connected to both the left and right sides of the top wall of the lower support body 2. The use of two guide posts 3 in this embodiment makes the movement of the upper support body 1 more stable.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. An assembly tool for cutting a magnetic ring, characterized by, The system includes an upper support body (1) and a lower support body (2). A guide post (3) is connected to the lower support body (2), and the guide post (3) movably passes through the upper support body (1). The bottom wall of the upper support body (1) has an upper groove, and an upper limit boss (4) is provided in the upper groove. The bottom wall of the upper limit boss (4) has an upper U-shaped groove (5). The top wall of the lower support body (2) has a lower groove, and a lower limit boss is provided in the lower groove. The platform (6) has a lower U-shaped groove (7) on its top wall. The circumferential wall of the upper semi-circular magnetic ring can contact the top wall of the upper U-shaped groove (5), and the two side walls of the upper semi-circular magnetic ring can contact the two side walls of the upper U-shaped groove (5) respectively. The circumferential wall of the lower semi-circular magnetic ring can contact the bottom wall of the lower U-shaped groove (7), and the two side walls of the lower semi-circular magnetic ring can contact the two side walls of the lower U-shaped groove (7) respectively. The upper semi-circular magnetic ring and the lower semi-circular magnetic ring are spliced ​​together to form a complete magnetic ring.

2. The assembly tool for cutting a magnetic ring according to claim 1, wherein The upper groove is provided with 2-3 upper limit bosses (4).

3. The assembly tool for cutting a magnetic ring according to claim 1, wherein The lower groove is provided with 2-3 lower limit bosses (6).

4. The assembly tool for cutting a magnetic ring according to claim 1, wherein The upper groove is an arc-shaped groove.

5. The assembly tool for cutting a magnetic ring according to claim 1, wherein The lower groove is an arc-shaped groove.

6. The assembly tool for cutting a magnetic ring according to claim 1, wherein The left and right sides of the top wall of the lower support body (2) are both connected to guide columns (3).