Electric spark gap discharge state detection device and method based on clustering analysis

Abstract

An electric spark gap discharge state detection device and method based on cluster analysis relates to electric spark machining. The detection device includes an electric discharge machine tool, an electrical signal detection collector, a cluster analyzer, a servo controller and a host computer; the electrical signal detection collector includes an amplification circuit and an isolation optocoupler; the cluster analyzer includes an STM32 The single-chip microcomputer and serial port module, etc., the EDM machine tool is connected to the amplifying circuit through the cable, and the isolation module is connected to the amplifying circuit, the single-chip microcomputer, the serial port module and the upper computer in turn, and the upper computer is connected to the motion control card, and the motion control card is connected to the EDM machine tool. The electrical signal of the electric discharge machining machine tool is input through the electrical signal detection collector to perform cluster analysis in the cluster analyzer, and the output terminal of the cluster analysis of the cluster analyzer is connected to the servo controller for servo control, and the servo controller The relevant signal output terminals are connected to the host computer, and are displayed, controlled and stored in the host computer.

Description

technical field [0001] The invention relates to electric discharge machining, in particular to a device and method for detecting the state of electric spark gap discharge based on cluster analysis. Background technique [0002] EDM is a special processing method that removes the surface of the workpiece through the instantaneous high temperature generated by the pulsed spark discharge between the electrode and the workpiece, so as to meet the requirements of a certain shape and surface roughness. EDM is not affected by the strength and hardness of the workpiece, and there is no macroscopic cutting force. Especially suitable for machining complex shapes that are difficult to machine. It has great applications in aviation, aerospace, automobiles, electronics, and molds. [0003] The discharge state of the gap usually has three types: no-load, spark, and short circuit. There are five discharge states of stable arc and unstable arc that are more perfect. Generally, there is ...

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Problems solved by technology

After searching the literature of the prior art, it is found that in Chinese patent 200910045050, a device and method for detecting the spark gap discharge state based on wavelet transform are disclosed, which can only detect and analyze the voltage, and can only be divided into several inherent types. state

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