Partial electroplating mold

Abstract

A locally electroplating mold, comprising a strip type double-thread screw, and an upper blocking plate and a lower blocking plate which are tightly screwed on two ends of the screw and are used for tightly clamping a plurality of electroplate workpieces, wherein a hanging plate is connected on the upper of the upper blocking plate. Because the plurality of electroplating workpieces sleeved out of the screw are tightly clamped by blocking plates screwed at two ends of the double-thread screw, side faces and internal faces of the workpieces are completely isolated to an electroplating solution, thus only external surfaces of the workpieces are electroplated, thereby raising local electroplating efficiency; the side faces and the internal surfaces does not need to be machined after electroplating, thereby saving electroplating material and saving production cost. The electroplating mold has a reasonable structure. In addition, the electroplating mold is convenient for assembling and disassembling, can be repeatedly used, a batch of electroplating member can be replaced for another after electroplated.

Description

【Technical field】 [0001] The invention relates to a tool for clamping a workpiece with a special partial electroplating mold for partial outer surface electroplating. 【Background technique】 [0002] We know that a layer of zinc or chromium is electroplated on the outer surface of many metal parts to achieve the effect of enhancing the appearance or corrosion resistance of the part. Since the entire part surface is not electroplated, how to do a good job on the metal parts The protection of the non-plated parts (sides, inner surfaces, etc.) At present, people's common practice is to put the whole part in the electroplating solution to fully electroplate the surface, and then grind the surface that does not need to be coated, or coat the surface that does not need to be electroplated in advance. Protection, or the use of adhesive tape for non-electroplating surface protection, these methods will not only cause waste of electroplating materials, but also increase working hours...

AI Technical Summary

Problems solved by technology

At present, people's common practice is to put the whole part in the electroplating solution to fully electroplate the surface, and then grind the surface that does not need to be coated, or coat the surface that does not need to be electroplated in advance. Protection, or use the method of sticking adhesive tape for non-electroplating surface protection, these methods will not only cause waste of electroplating materials, but also increase working hours, greatly increase production costs, and the electroplating effect is not ideal

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