Right angle extrusion processing method and right angle extrusion processing mould

Abstract

The invention discloses a right angle extrusion processing method and a right angle extrusion processing mould. The method comprises the following steps: a) stamping a metal sheet through the mould, and processing a semi-finished product workpiece of which the edge is provided with downwards annular bending edge and the outer corners are round corners; b) performing more than two times of extrusion processing on the semi-finished product workpiece through the mould to make the outer corners extrude into right angles. When the mould is closed, the upper part of an extrusion male mould is positioned in an upper concave part of an upper template; a stamping gap is formed between the upper surface of the extrusion male mould and the upper template; a bending gap is formed between the side face of the upper part of the extrusion male module and the upper template; the middle of an outer stripping plate is also provided an extrusion punch for upwards squeezing the workpiece bending edge; and the extrusion punch corresponds to the bending gap and is arranged on the side face of the extrusion male mould. According to the method and the mould, electronic product parts of which the outer corners between metal sheet bodies and the bending edges are right angles can be processed; the workpiece is not damaged by pressing or scratching during processing, and the sequential processing procedures of grinding and polishing are saved.

Description

technical field [0001] The invention relates to the technical field of moulds, in particular to a right-angle back-extrusion processing method for processing metal parts of electronic products and a right-angle back-extrusion processing mold. Background technique [0002] In order to meet the needs of assembly, the outer corner between the edge interface of the metal parts used in electronic products and the main body of the product is usually a right angle. For example, in a sheet metal device, the edge of the sheet metal body has a downward circular bending edge, and the outer corner between the sheet metal body and the bending edge is a right angle. [0003] In the prior art, the above-mentioned metal sheet devices are usually directly punched and formed by a mold. Since the forming structure of the above-mentioned metal sheet is relatively complicated, it is easier to crush and scratch the metal sheet during processing of the metal sheet using the mold and method of the...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the above-mentioned metal sheet devices are usually directly punched and formed by a mold. Since the forming structure of the above-mentioned metal sheet is relatively complicated, it is easier to crush and scratch the metal sheet during processing of the metal sheet using the mold and method of the prior art. Injuries, the products punched out of the mold have to go through subsequent grinding and polishing

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