Auxiliary welding jig for voice coil and voice diaphragm assembly

Abstract

The auxiliary welding jig for the voice coil and voice diaphragm assembly comprises a base and a cylindrical pressing block, a spherical positioning groove is formed in the center of the top of the base, an annular positioning groove located on the outer edge of the spherical positioning groove is formed in the top of the base, and a vacuum air hole is formed in the bottom of the spherical positioning groove. An air channel communicated with the vacuum air hole is formed in the side wall of the base, and a spherical positioning part matched with the spherical positioning groove is arranged at the bottom of the cylindrical pressing block. The voice coil and voice diaphragm assembly is placed on the top of the base in an inverted mode, so that the spherical part and the annular part are embedded in the spherical positioning groove and the annular positioning groove respectively, then the cylindrical pressing block is inserted into the inner ring of the framework and pressed on the spherical part of the voice diaphragm, and the placing position of the voice coil and voice diaphragm assembly can be rectified; when the voice diaphragm is welded, the voice diaphragm can be adsorbed on the base, and the positive wire and the negative wire of the connector can be respectively welded on the two leads, so that the welding operation process can be simplified, and the welding efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of production jigs for voice coil and diaphragm assemblies, and particularly to an auxiliary welding jig for voice coil and diaphragm assemblies. Background Art

[0002] A voice coil is a coil through which an electric current passes in a loudspeaker and is an important part of the mechanical wave system of an electro-dynamic loudspeaker. It can also be said to be the heart of the loudspeaker. As shown in the Figure 3 accompanying figure, a voice coil and diaphragm assembly 3 on the market is composed of a diaphragm 30 and a voice coil 31. The diaphragm 30 includes a spherical portion 300 and an annular portion 301 connected to the outer edge of the spherical portion 300. The voice coil 31 includes a bobbin 310 and a coil wound around the bobbin 310. Both ends of the coil are connected with leads 311. According to the requirements of customers, a connector needs to be additionally installed. During the production process, the positive wire and the negative wire of the connector need to be respectively welded to the ends of the two leads 311. Currently, the general-purpose jig used for welding this type of product has a rather cumbersome positioning operation for the product, resulting in a decrease in welding efficiency and affecting the output. Summary of the Invention

[0003] The problem to be solved by the utility model is to provide an auxiliary welding jig for voice coil and diaphragm assemblies, which simplifies the operation process and improves the welding efficiency.

[0004] To solve the above technical problems, an auxiliary welding jig for voice coil and diaphragm assemblies provided by the utility model includes a base and a cylindrical pressing block. A spherical positioning groove is provided at the center of the top of the base, and an annular positioning groove is provided at the top of the base along the outer edge of the spherical positioning groove. A vacuum hole is provided at the bottom of the spherical positioning groove, and an air passage communicating with the vacuum hole is provided on the side wall of the base. A spherical positioning portion matching the spherical positioning groove is provided at the bottom of the cylindrical pressing block.

[0005] Preferably, the base is arranged in a frustum shape, and a frustum-shaped base is provided at the bottom of the base.

[0006] The beneficial effects of the present utility model are as follows: The present utility model provides an auxiliary welding jig for a voice coil and diaphragm assembly. The spherical positioning groove and the annular positioning groove are respectively arranged to match the spherical part and the annular part, the cylindrical pressing block is arranged to match the inner ring of the skeleton, and one end of the air passage is connected to the trachea. When in use, first place the voice coil and diaphragm assembly upside down on the top of the base, so that the spherical part and the annular part of the diaphragm are respectively fitted into the spherical positioning groove and the annular positioning groove, and then insert the cylindrical pressing block into the inner ring of the skeleton and press it on the spherical part of the diaphragm, thereby positioning the diaphragm and the voice coil, which can correct the placement position of the voice coil and diaphragm assembly. By pumping air through the vacuum holes, the diaphragm can be adsorbed on the base. At this time, the positive wire and the negative wire of the connector can be respectively welded to the two leads, which can simplify the welding operation process, improve the welding efficiency, increase the output, and ensure the stability of the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 Illustrates the external structure schematic diagram of the present utility model.

[0008] Figure 2 Illustrates the cross-sectional view of the use effect of the welding jig of the present utility model and the voice coil and diaphragm assembly.

[0009] Figure 3 Illustrates the external structure schematic diagram of the voice coil and diaphragm assembly of the present utility model.

[0010] Description of the reference numerals in the drawings: Base 1, Spherical positioning groove 10, Annular positioning groove 11, Vacuum hole 12, Air passage 13, Frustum-shaped base 14, Cylindrical pressing block 2, Spherical positioning part 20, Voice coil and diaphragm assembly 3, Diaphragm 30, Spherical part 300, Annular part 301, Voice coil 31, Skeleton 310, Lead 311. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0011] To make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some, but not all, of the embodiments of the present disclosure.

[0012] All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.

[0013] Refer to Figures 1 - 3 .

[0014] The utility model provides an auxiliary welding jig for a voice coil and diaphragm assembly, which comprises a base 1 and a cylindrical pressing block 2. A spherical positioning groove 10 is arranged at the center of the top of the base 1, and an annular positioning groove 11 is arranged at the top of the base 1 along the outer edge of the spherical positioning groove 10. A vacuum hole 12 is arranged at the bottom of the spherical positioning groove 10, and an air channel 12 is arranged on the side wall of the base 1 and communicated with the vacuum hole 12. A spherical positioning part 20 matched with the spherical positioning groove 10 is arranged at the bottom of the cylindrical pressing block 2.

[0015] The specific working principle is that the spherical positioning groove 10 and the annular positioning groove 11 are respectively arranged to be matched with the spherical part 300 and the annular part 301, the cylindrical pressing block 2 is arranged to be matched with the inner ring of the skeleton 310, and one end of the air channel 13 is connected with a trachea. During use, the voice coil and diaphragm assembly 3 is first placed upside down on the top of the base 1, so that the spherical part 300 and the annular part 301 of the diaphragm 30 are respectively fitted in the spherical positioning groove 10 and the annular positioning groove 11. Then, the cylindrical pressing block 2 is inserted into the inner ring of the skeleton 310 and pressed on the spherical part 300 of the diaphragm 30, so as to position the diaphragm 30 and the voice coil 31, which can play a role in correcting the placement position of the voice coil and diaphragm assembly 3. By pumping air from the vacuum hole 12, the diaphragm 30 can be adsorbed on the base 1. At this time, the positive wire and the negative wire of the connector can be respectively welded on the two leads 311, which can simplify the welding operation process, improve the welding efficiency, increase the output, and ensure the stability of the welding quality.

[0016] Based on the above embodiment, the base 1 is arranged in a frustum shape, and a frustum-shaped base 13 is arranged at the bottom of the base 1, which can improve the placement stability of the base 1 and facilitate the positioning of the base 1.

[0017] The above embodiments are only used to describe the preferred embodiments of the present utility model, and do not limit the scope of the present utility model. Without departing from the design spirit of the present utility model, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present utility model shall fall within the protection scope determined by the claims of the present utility model.

Claims

1. An auxiliary welding jig for a voice coil and a voice membrane assembly, characterized in that: It comprises a base and a cylindrical pressing block, wherein a spherical positioning groove is arranged at the top center of the base, an annular positioning groove located at the outer edge of the spherical positioning groove is arranged at the top of the base, a vacuum air hole is arranged at the bottom of the spherical positioning groove, an air channel connected with the vacuum air hole is arranged on the side wall of the base, and a spherical positioning part matching with the spherical positioning groove is arranged at the bottom of the cylindrical pressing block.

2. The auxiliary welding jig of the voice coil and membrane assembly according to claim 1, characterized in that: The base is arranged in a truncated cone shape, and a truncated cone base is arranged at the bottom of the base.

Images