Novel magnetic positioning tool

By designing a novel magnetic positioning fixture, which utilizes magnetic components and a sliding block structure, the problem of simultaneous engagement of the two ends in the speaker magnetic fastening fixture was solved, achieving stable assembly and efficient production.

CN223798356UActive Publication Date: 2026-01-13CHONG QING GREAT SOUND TECH CO LTD
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Patent Information

Application Number
CN202520337845.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2026-01-13
Estimated Expiration
2035-02-28

AI Technical Summary

Technical Problem

Existing speaker magnetic fastening fixtures are too long, making it difficult to ensure that both ends fasten simultaneously. This results in one end fastening while the other end deviates, preventing complete assembly.

Method used

A novel magnetic positioning fixture is designed, which uses an upper and lower mold that interlocks with each other. The combination of magnetic components and sliding blocks ensures that both ends are engaged simultaneously. The mechanical limit is formed by a magnetic quick-release assembly and a compression spring to prevent displacement.

Benefits of technology

It achieves stable engagement between the upper and lower molds, prevents part deviation, improves production efficiency, simplifies maintenance, reduces the risk of part damage, and enhances assembly accuracy and production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a novel magnetic attraction positioning tool which comprises an upper die and a lower die, a plurality of first part containing cavities are formed in the upper die, a plurality of second part containing cavities corresponding to the first part containing cavities are formed in the lower die, first parts are arranged in the first part containing cavities, and second parts are arranged in the second part containing cavities. After the upper die and the lower die are buckled with each other, the first part and the second part are assembled and buckled, first magnetic attraction pieces are symmetrically arranged at the two ends of the bottom wall of the upper die, second magnetic attraction pieces corresponding to the magnetic attraction assemblies are arranged at the two ends of the top wall of the lower die, protruding blocks are symmetrically arranged at the two ends of the top wall of the lower die in the width direction of the lower die, and sliding grooves are formed in the protruding blocks. A mounting groove is formed in the bottom of each sliding groove, sliding blocks corresponding to the sliding grooves are arranged at the two ends of the bottom wall of the upper die and slide into the mounting grooves from the interiors of the sliding grooves, the first magnetic attraction parts and the second magnetic attraction parts are magnetically attracted and fixed, and it can be effectively guaranteed that the two ends of the upper die and the two ends of the lower die are buckled at the same time.
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Description

Technical Field

[0001] This utility model relates to a novel magnetic positioning fixture, which is applied in the field of speaker fixtures. Background Technology

[0002] A speaker magnetic snap-fit ​​fixture is a tool used to achieve rapid and precise installation of magnetic components during speaker assembly. Existing speaker magnetic snap-fit ​​fixtures typically consist of multiple stations arranged side by side, with the upper mold holding the cover and the lower mold holding the bracket. They snap together to assemble the cover and bracket. However, due to the long length of this fixture, it is often difficult to ensure that both ends snap together simultaneously. This can lead to situations where one end snaps together while the other end deviates, resulting in incomplete assembly. Therefore, to address these issues, this invention designs a novel magnetic positioning fixture. Utility Model Content

[0003] This invention provides a novel magnetic positioning fixture that can effectively solve the above-mentioned problems.

[0004] This utility model is implemented as follows:

[0005] A novel magnetic positioning fixture includes an upper mold and a lower mold. The upper mold has a plurality of first part receiving cavities, and the lower mold has a plurality of second part receiving cavities corresponding to the first part receiving cavities. First parts are disposed within the first part receiving cavities, and second parts are disposed within the second part receiving cavities. After the upper and lower molds are engaged, the first and second parts are assembled and fastened together.

[0006] The upper mold bottom wall is symmetrically provided with first magnetic suction components at both ends, and the lower mold top wall is provided with second magnetic suction components corresponding to the magnetic suction components at both ends. The lower mold top wall is symmetrically provided with a protrusion along its width direction at both ends. A sliding groove is provided in the protrusion, and a mounting groove is provided at the bottom of the sliding groove. The upper mold bottom wall is provided with sliding blocks corresponding to the sliding groove at both ends. The sliding blocks slide from the sliding groove to the mounting groove, and the first magnetic suction components and the second magnetic suction components are magnetically attracted and fixed.

[0007] As a further improvement, a positioning groove is provided at the rear end of the sliding block, and when the sliding block slides into the mounting groove, the protrusion is positioned in the positioning groove.

[0008] As a further improvement, a magnetic quick-release assembly is further included. The magnetic quick-release assembly includes mounting holes symmetrically arranged at both ends of the bottom wall of the upper mold. A compression spring is disposed in the mounting hole and connected to an abutment plate. An annular boss is disposed at the opening of the mounting hole. A pair of sliding grooves penetrating the annular boss are disposed on the outer top surface of the annular boss. A pair of abutment grooves are disposed on the inner top surface of the annular boss. A fastener is sleeved on the first magnetic component. A pair of protruding edges are disposed on the side wall of the fastener. The protruding edges slide from the sliding grooves toward the inner top surface of the annular boss. The fastener abuts against the abutment plate and compresses the compression spring. When the fastener slides into the mounting hole, the fastener is rotated to make the protruding edges disposed in the abutment grooves, thereby fixing the first magnetic component.

[0009] As a further improvement, the number of the first part receiving cavity and the second part receiving cavity is 6 to 10, the first part receiving cavity is used to place the cover, and the second part receiving cavity is used to place the bracket.

[0010] As a further improvement, the second part receiving cavity includes a receiving groove, the bottom of which is provided with a plurality of parting grooves, and an ejector pin hole is also provided in the receiving groove for setting an ejector pin.

[0011] As a further improvement, the lower mold sidewall is also provided with several handles.

[0012] The beneficial effects of this utility model are:

[0013] (1) Make the sliding block abut against the groove, and make the sliding block slide in the groove. The sliding block slides from the groove to the mounting groove. The first magnetic suction component and the second magnetic suction component are magnetically fixed, which can effectively ensure that the two ends of the upper mold and the lower mold are fastened at the same time, and prevent the situation that the parts at the other end cannot be fully fastened and assembled due to deviation when one end is fastened.

[0014] (2) The first magnetic suction component is mechanically limited by the pressure of the compression spring, which prevents the first magnetic suction component from being displaced due to vibration or external force after magnetic suction fixation, further enhancing the stability of the tooling magnetic suction fixation. Moreover, the device facilitates the replacement of the magnetic suction component, preventing the problem of difficulty in replacing the magnetic suction component when it cannot be fully fastened due to excessive use and magnetism decline. No complicated tools are required, shortening maintenance time.

[0015] (3) The multi-cavity design supports the assembly of multiple parts in one snap-fit, which significantly improves production efficiency. The mold parting groove reduces the demolding resistance during injection molding and avoids the deformation of the parts. The ejector pin hole makes it easy for the ejector pin to eject the parts, reducing the risk of damage to the finished product. The handle provides a clear force application point, which is convenient for operating the upper and lower molds. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a structural schematic diagram provided by an embodiment of the present utility model.

[0018] Figure 2 This is an exploded view of the structure provided in an embodiment of the present invention.

[0019] Figure 3 This is a top view provided in an embodiment of the present utility model.

[0020] Figure 4 yes Figure 3 A schematic diagram of the cross-sectional structure at point AA.

[0021] Figure 5 This is a schematic diagram of the upper mold structure provided in an embodiment of the present invention.

[0022] Figure 6 This is a schematic diagram of the upper mold structure provided in an embodiment of the present invention.

[0023] The attached diagram is labeled as follows:

[0024] 10. Upper mold; 11. First part receiving cavity; 12. Magnetic quick-release assembly; 121. Mounting hole; 122. Compression spring; 123. Abutment plate; 124. Annular boss; 1241. Sliding groove; 1242. Abutment groove; 125. Fastener; 1251. Protruding edge; 13. First magnetic component; 14. Sliding block; 15. Positioning groove;

[0025] 20. Lower mold; 21. Second part receiving cavity; 211. Receiving groove; 212. Mold parting groove; 213. Ejector pin hole; 22. Second magnetic suction component; 23. Protrusion; 24. Slide groove; 25. Mounting groove; 26. Handle. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0027] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] Reference Figures 1-6 As shown, a novel magnetic positioning fixture includes an upper mold 10 and a lower mold 20. The upper mold 10 has a plurality of first part receiving cavities 11, and the lower mold 20 has a plurality of second part receiving cavities 21 corresponding to the first part receiving cavities 11. First parts are disposed in the first part receiving cavities 11, and second parts are disposed in the second part cavities. After the upper mold 10 and the lower mold 20 are engaged, the first parts and second parts are assembled and fastened together.

[0029] The upper mold 10 has first magnetic suction components 13 symmetrically arranged at both ends of its bottom wall. The lower mold 20 has second magnetic suction components 22 corresponding to the magnetic suction components at both ends of its top wall. The lower mold 20 has a protrusion 23 symmetrically arranged at both ends of its top wall along its width direction. A sliding groove 24 is provided in the protrusion 23. A mounting groove 25 is provided at the bottom of the sliding groove 24. The upper mold 10 has sliding blocks 14 corresponding to the sliding groove 24 at both ends of its bottom wall. The sliding blocks 14 slide from the sliding groove 24 to the mounting groove 25, and the first magnetic suction components 13 and the second magnetic suction components 22 are magnetically attracted and fixed. A positioning groove 15 is provided at the rear end of the sliding block 14. When the sliding block 14 slides into the mounting groove 25, the protrusion 23 is positioned in the positioning groove 15, so that the tooling is tightly fastened, which facilitates the assembly of parts.

[0030] Reference Figure 2 , Figure 4 , Figure 5 , Figure 6As shown, the device further includes a magnetic quick-release assembly 12. The magnetic quick-release assembly 12 includes mounting holes 121 symmetrically arranged at both ends of the bottom wall of the upper mold 10. A compression spring 122 is disposed within each mounting hole 121 and connected to an abutment plate 123. An annular boss 124 is provided at the opening of the mounting hole 121. A pair of sliding grooves 1241 penetrating the annular boss 124 are provided on the outer top surface of the annular boss 124. A pair of abutment grooves are provided on the inner top surface of the annular boss 124. The groove 1242 is used to attach a fastener 125 to the first magnetic member 13. The fastener 125 has a pair of protruding edges 1251 on its side wall. The protruding edges 1251 slide from the sliding groove 1241 to the top surface of the annular boss 124. The fastener 125 abuts against the abutment plate 123 and compresses the compression spring 122. When the fastener 125 slides into the mounting hole 121, the fastener 125 is rotated so that the protruding edges 1251 are placed in the abutment groove 1242, thereby fixing the first magnetic member 13.

[0031] Reference Figure 5 , Figure 6 As shown, the number of the first part receiving cavity 11 and the second part receiving cavity 21 is 6 to 10. In this embodiment, the number of the first part receiving cavity 11 and the second part receiving cavity 21 is 6. The first part receiving cavity 11 is used to place the cover, and the second part receiving cavity 21 is used to place the bracket.

[0032] Reference Figure 1 , Figure 6 As shown, the second part receiving cavity 21 includes a receiving groove 211, the bottom of which is provided with a plurality of parting grooves 212, and an ejector pin hole 213 is also provided in the receiving groove 211 for setting ejector pins. A plurality of handles 26 are also provided on the side wall of the lower mold 20.

[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A novel magnetic positioning fixture, comprising an upper mold (10) and a lower mold (20), wherein the upper mold (10) is provided with a plurality of first part receiving cavities (11), and the lower mold (20) is provided with a plurality of second part receiving cavities (21) corresponding to the first part receiving cavities (11), wherein a first part is provided in the first part receiving cavity (11), and a second part is provided in the second part cavity, wherein after the upper mold (10) and the lower mold (20) are fastened together, the first part and the second part are assembled and fastened together, characterized in that, The upper mold (10) has a first magnetic suction component (13) symmetrically arranged at both ends of its bottom wall. The lower mold (20) has a second magnetic suction component (22) corresponding to the magnetic suction component at both ends of its top wall. The lower mold (20) has a protrusion (23) symmetrically arranged at both ends of its top wall along its width direction. A sliding groove (24) is arranged in the protrusion (23). An installation groove (25) is arranged at the bottom of the sliding groove (24). The upper mold (10) has a sliding block (14) corresponding to the sliding groove (24) at both ends of its bottom wall. The sliding block (14) slides from the sliding groove (24) to the installation groove (25). The first magnetic suction component (13) and the second magnetic suction component (22) are magnetically attracted and fixed.

2. The novel magnetic positioning fixture according to claim 1, characterized in that, The rear end of the sliding block (14) is provided with a positioning groove (15). When the sliding block (14) slides into the mounting groove (25), the protrusion (23) is set in the positioning groove (15).

3. The novel magnetic positioning fixture according to claim 1, characterized in that, The system further includes a magnetic quick-release assembly (12), which includes mounting holes (121) symmetrically arranged at both ends of the bottom wall of the upper mold (10). A compression spring (122) is disposed in the mounting hole (121), and the compression spring (122) is connected to an abutment plate (123). An annular boss (124) is provided at the opening of the mounting hole (121). A pair of sliding grooves (1241) penetrating the annular boss (124) are provided on the outer top surface of the annular boss (124), and a pair of abutment grooves (1241) are provided on the inner top surface of the annular boss (124). 2) The first magnetic suction member (13) is fitted with a fastener (125). The fastener (125) has a pair of protruding edges (1251) on its side wall. The protruding edges (1251) slide from the sliding groove (1241) to the top surface of the annular boss (124). The fastener (125) abuts against the abutment plate (123) and compresses the compression spring (122). When the fastener (125) slides into the mounting hole (121), the fastener (125) is rotated so that the protruding edges (1251) are set in the abutment groove (1242), thereby fixing the first magnetic suction member (13).

4. The novel magnetic positioning fixture according to claim 3, characterized in that, The number of the first part receiving cavity (11) and the second part receiving cavity (21) is 6 to 10. The first part receiving cavity (11) is used to place the cover, and the second part receiving cavity (21) is used to place the bracket.

5. A novel magnetic positioning fixture according to claim 4, characterized in that, The second part receiving cavity (21) includes a receiving groove (211), the bottom of which is provided with a plurality of parting grooves (212), and the receiving groove (211) is also provided with an ejector pin hole (213), which is used to set an ejector pin.

6. A novel magnetic positioning fixture according to claim 5, characterized in that, The lower mold (20) is also provided with several handles (26) on its side wall.