Method for processing female die with large square hole

Abstract

The embodiment of the invention discloses a method for processing a female die with a large square hole. The method comprises the following steps of: roughly turning the excircle and thickness of a blank of the female die with the large square hole; processing the blank by using a milling machine, and thus obtaining a large end which meets requirements of a drawing; semi-finishing a small end by using a numerically controlled milling machine, and thus obtaining a small-end working tape which meets the requirements of the drawing; processing a screw through hole and a sunk table hole, and reserving an allowance for the size of a cavity of the small-end working tape; performing heat treatment on the female die, and flatly grinding planes at two ends of the female die to make the largest height of the small-end working tape meet the requirements of the drawing; performing finish turning on the excircle of the female die which is flatly ground; performing finish machining, and thus obtaining a mold cavity which meets the size of the drawing; processing an uneven part of the small-end working tape which is flatly ground by using an electric spark machine tool; and grinding, polishing and assembling the small-end working tape of the mold cavity which is subjected to finish machining by the numerically controlled milling machine. By adoption of the method provided by the embodiment of the invention, production efficiency can be improved, and production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of die processing, in particular to a processing method for a concave die with a large square hole. Background technique [0002] In modern process production, mold is one of the most important process equipment. With the development of science and technology, the variety and quantity of handicrafts continue to increase, and the speed of product modification and replacement is accelerated. New requirements are constantly put forward for product quality and appearance, and the requirements for mold quality are getting higher and higher. The level of mold design and manufacturing directly affects the development of the national economy and has become one of the important symbols to measure the level of a country's machinery manufacturing. Therefore, the mold industry now has higher and higher requirements for production efficiency and production quality. [0003] In the mold production process of the prior ar...

AI Technical Summary

Problems solved by technology

[0012] When the cavity of the mold is square or the radius of the inner sharp corner is not less than 3mm, the size of the cavity is large, and the circumference to be processed is very long, and the processing time of the wire cutting machine will be very long, and the wire cutting machine is based on the marking line to find It is being processed, the concentricity between the processed die hole and the shape is not high, so the production efficiency cannot be improved

As for the slow wire cutting machine tool, since the cutting wire used is disposable copper wire, the processing cost is higher

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