Method and device for dressing superhard material grinding wheel

Abstract

The invention discloses a superhard material grinding wheel dressing method and device. Firstly, the groove shape of the workpiece is preliminarily trimmed by electric discharge machining, and the obtained workpiece after preliminary trimming is recorded as the first workpiece: the workpiece is processed by electric discharge machining. The first electrode, the second electrode and the third electrode in the spark processing module are subjected to rough machining, medium machining and finishing in sequence; the first workpiece is finely trimmed by the transfer cooperation of the diamond roller and the dressing wheel; finally, the The second workpiece uses a diamond roller as a dressing tool, and the sharpening wheel is replaced to perform precision sharpening on the second workpiece. The invention realizes high-efficiency and precise dressing and sharpening of superhard material grinding wheels containing metals such as metal binders and composite binders with conductive properties, solves the problems of poor dressing precision, poor sharpening precision, and processing efficiency of superhard material grinding wheels, and realizes The groove shape accuracy of the precision groove of the superhard material grinding wheel is controllable, efficient processing, and precision sharpening.

Description

technical field [0001] The invention relates to the technical field of dressing of grinding wheels, in particular to a method and device for dressing superhard material grinding wheels. Background technique [0002] Superabrasive grinding wheels refer to grinding wheels with diamond or cubic boron nitride as abrasive grains. The hardness of the abrasive is much higher than that of corundum and silicon carbide abrasives. The main features are: high hardness, high sharpness, high thermal conductivity, and high grinding efficiency. Under the same conditions of use, the grinding force is smaller than that of ordinary grinding wheels and consumes less power. , saving power; due to the sharp grinding, even when the grinding efficiency is high, the temperature in the grinding area is lower than that of ordinary grinding tools, avoiding defects such as burns and cracks on the working surface, reducing plastic deformation, and ensuring the workpiece being machined The shape, size an...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a superhard material grinding wheel dressing method and device, which can realize the dressing, detection and repair of superhard material grinding wheels for liquid crystal glass, sapphire, silicon wafers, silicon carbide, gallium arsenide, germanium wafers, etc. Sharp, which solves the problems of cumbersome processing of superhard material grinding wheels, low processing accuracy, and low processing efficiency

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