Electrolysis-broaching combined machining tool electrodes

Abstract

The invention provides electrolysis-broaching combined machining tool electrodes and belongs to the technical field of special machining. According to the electrolysis-broaching combined machining tool electrodes, the structure is novel; through addition of insulating partition plates, an insulating pad and an insulating sleeve and implementation of insulation on electrolyte flow channel walls inside a cutter body, insulation of broach blades and porous metal electrodes is achieved, and the electrochemical machining process and the mechanical broaching machining process are guaranteed not to interfere with each other; and a porous metal material is adopted as the electrochemical machining electrode material, the problem that when external liquid spraying is conducted and a cutter cuts intoa workpiece, liquid feeding in the electrochemical machining process is insufficient is avoided, and the problem that corrosion of the workpiece surface material is not uniform when internal liquid spraying is conducted is also avoided. The broach blades and the porous material electrodes are designed to be in a split disassembling and assembling type; and when parts with different outlines and shapes are machined, the broach blades and the porous material electrodes can be replaced rapidly, and the advantages of high applicability and low comprehensive cost are realized.

Description

technical field [0001] The invention belongs to the technical field of special processing, and relates to a tool electrode, in particular to an electrolysis-broaching composite processing tool electrode. Background technique [0002] The broach is a special tool for broaching. It is a tool with multiple rows of teeth. Its processing principle is to use the different tooth lifts of each tooth to remove material in turn. According to the different processing objects, it can be divided into round broach and keyway. Broaches, involute broaches, etc. Broaching is usually carried out under low-speed and heavy-load conditions. The extrusion friction between the broach flank and the workpiece processing surface is severe, and the broaching load is huge, which is prone to processing defects such as extrusion spots, ring ripples, and scratches. In addition, due to the influence of the contour characteristics of the processed surface, intermittent contact of multiple teeth and other n...

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Problems solved by technology

[0004] However, broaching belongs to the traditional machining process. The tool and the workpiece are always in contact during the machining process, while the tool and the workpiece are non-contact during the electrolytic machining process. The combination of the two in parallel can easily cause a short circuit, burn the broach and the workpiece

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