Electric spark milling and mechanical grinding composite machining tool electrode

Abstract

The invention relates to an electric spark milling and mechanical grinding combined machining tool electrode, and belongs to the field of non conventional machining. The tool electrode consists of two parts, namely a metal tool electrode 1 and a grinding body 2, wherein the metal tool electrode 1 is cylindrical, and the periphery of the metal tool electrode 1 is provided with a spiral groove; thegrinding body 2 is an insulated sand-containing rubbing block; and the grinding body 2 is filled and consolidated in the spiral groove of the metal tool electrode 1, and the diameter of the grinding body 2 is the same as that of the metal tool electrode 1. When the tool electrode performs processing, the tool electrode of the invention and a workpiece are connected with two poles of a pulse powersource, and the tool electrode realizes electric spark milling and mechanical grinding combined machining for the workpiece through electric spark milling of the metal tool electrode 1 and the mechanical grinding of the grinding body 2. The electric spark milling and mechanical grinding combined machining tool electrode has the advantages of simple structure, high processing efficiency and precision, low cost, and the like.

Description

technical field [0001] The invention belongs to the field of special processing, and relates to an electrode of a compound processing tool for electric spark milling and mechanical grinding. Background technique [0002] Electric discharge milling is a new type of processing technology that began to be studied in the late 1980s and developed in the early 1990s. It uses a simple-shaped electrode (such as a rod-shaped electrode) to move along a certain trajectory like a milling cutter. Under the control of a numerical control system, the electrode can perform EDM milling on a three-dimensional cavity or surface. Compared with traditional EDM, EDM not only saves the design and manufacture of forming electrodes, shortens the production cycle of products, reduces processing costs, improves processing flexibility, but also effectively improves processing stability , Reducing the capacitive effect is a processing technology with great development prospects. At present, the common...

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Problems solved by technology

[0003] The tool electrode that can realize the functions of EDM milling and mechanical grinding at the same time has not been reported at home and abroad.

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