A micro electric spark electrode grinding device with online shaping and its application method

Abstract

The invention discloses an online shaping minuteness electric spark electrode grinding device and a using method of the device. The device comprises a base, a cylindrical block electrode drive unit, a grinding wheel drive unit, a grinding wheel constant pressure feeding unit and a liquid storage and circular filtering unit; a cuboid block electrode is replaced with a cylindrical block electrode, by means of grinding, real-time shaping of an electrode discharge machining face is achieved, the problem that due to discharge losses, a block electrode surface is unlevel, and the machining quality of a machined electrode is affected is solved, and the size and shape precision of the machined electrode is improved; the machined electrode is subject to single feeding in the radial direction of a cylindrical block electrode to replace the machined electrode, the machined electrode does the complex path of reciprocating movement parallel to the block electrode surface and transverse feeding perpendicular to the block electrode surface, and simplifying of a machining program is achieved; and a grinding wheel immersion and high-rotating-speed machining manner is adopted in a grinding technology, the cooling effect is good, safety and stability are achieved, and the device can be suitable for the electric spark fluid flushing work environment and the immersion work environment and is wide in application face.

Description

technical field [0001] The invention belongs to the field of precision electric discharge machining, and in particular relates to a fine electric discharge electrode grinding technology based on block electrodes. Background technique [0002] The miniaturization of EDM electrodes is the key to making smaller and more precise parts. Many scholars have conducted in-depth research in this area and achieved certain results. Since T. Masuzawa et al. of Tokyo University in Japan invented the wire EDM method to make micro EDM possible, K. Egashira of Kyoto University of Technology and Fiber in Japan has used wire EDM on-line grinding and electrolytic composite method to process Micro-shaft, Jia Baoxian of Harbin Institute of Technology and others invented the single-side block electrode EDM grinding method, in addition to the edge EDM grinding method, scanning discharge preparation method, single pulse discharge preparation method, microporous backcuff preparation method, electrofo...

AI Technical Summary

Problems solved by technology

Since the surface of the block electrode, the edge electrode and the electrode to be processed will also be worn out when the electrode is discharged, resulting in a decrease in the shape and dimensional accuracy of the fine electrode, the usual practice is to remove the block electrode from the machine tool after discharge, and grind it again on a surface grinder. use, the corresponding processing efficiency is reduced, and the process is cumbersome

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