Composite electrical contact equipment applicable for manufacturing thin silver layers

Abstract

The invention relates to composite electrical contact equipment applicable for manufacturing thin silver layers. The composite electrical contact equipment comprises a wire incoming device for conveying copper wires and silver wires with different wire diameters, a shearing rod capable of moving back and forth to shear the wires provided by the wire incoming device so as to cut the silver wires and the copper wires, a die holder which is fixed on the equipment and corresponds to the shearing rod, a final upsetting die for molding the wires into electrical contact products, a cam transmission device for controlling each component of the equipment to perform coordinated actions and the like; a storage die for independently storing the sheared silver wires is arranged on the die holder; and a control die for transferring the silver wires in the storage die, carrying out stained connection pre-upsetting on the copper wires in the die holder and then molding into the electrical contact products by using the final upsetting die is arranged on the shearing rod. The composite electrical contact equipment has the beneficial effects that the defect that the junction surfaces of silver and copper are insufficient existing due to trimming on two sides of a bottom die in the prior art is overcome, and simultaneously the defect that the thinning capacity is insufficient in the prior art is also overcome.

Description

technical field [0001] The invention relates to the composite electric contact manufacturing industry, in particular to a composite electric contact device suitable for making a thin silver layer. Background technique [0002] The existing equipment that can produce two composite electrical contacts with different wire diameters at the same time is centered on the forming bottom mold, with a pair of scissors on the left and right, respectively, and the cut copper wire and silver wire are sent to the forming bottom mold at the same time Perform pre-upsetting and final upsetting (see figure 1 with figure 2 Existing wire cutting machine on both sides to make composite contact process diagram), this type of machine can cut copper wire and silver wire with different wire diameters because there are two scissors. In actual production, in order to make the silver layer of the composite electrical contact very thin, the diameter of the silver wire is often smaller than that of th...

AI Technical Summary

Problems solved by technology

[0006] The beneficial effects of the present invention are: overcoming the shortage of silver and copper bonding surfaces existing in the prior art when the wires are trimmed on both sides of the bottom mold, and also overcoming the problem of making composite electrical contact products even though the wires are trimmed on one side. The wire diameters of different wires must be the same size, and the silver layer of the electrical contact made is not thin enough, so that the silver and copper bonding strength of the electrical contact made can be achieved, and the silver layer can satisfy the thinnest requirement to the greatest extent. need

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