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Method and control system of electric discharge machining processing feed automatic control

An automatic control system, EDM technology, applied in the direction of electric processing equipment, metal processing equipment, circuits, etc., can solve the problems of complex operation and maintenance, complex structure, large volume, etc., to prevent arc burns, small volume, high The effect of response

Inactive Publication Date: 2013-05-08
LUOYANG XINCHENG PRECISION MACHINERY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is not suitable for the use of portable spark machines. It has the characteristics of complex structure, large volume, high cost, and complicated operation and maintenance.

Method used

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  • Method and control system of electric discharge machining processing feed automatic control
  • Method and control system of electric discharge machining processing feed automatic control
  • Method and control system of electric discharge machining processing feed automatic control

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Embodiment Construction

[0028] Such as figure 1 , 2 As shown in , 3, an automatic feed control system for EDM machining, the comparison circuit receiving the discharge gap is connected to the execution circuit through the amplifying drive circuit, and the feed signal of the execution circuit is fed back to the control object circuit and the sampling circuit The comparator circuit is electrically connected. The adjustment object circuit has the ability to adjust the spark discharge gap between the electrode and the workpiece during EDM, that is, according to the requirements of the set value servo reference voltage, etc., it always tracks and maintains a certain average spark discharge gap, so that the EDM can be adjusted , the distance between the electrode and the workpiece is: 0.2-0.3mm.

[0029] The sampling circuit uses a dual-voltage comparator LM393 that indirectly reflects the size of the discharge gap by measuring electrical parameters that are proportional to the discharge gap. The amplif...

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Abstract

The invention relates to the technical field of electric discharge machining processing feed automatic control, and discloses a method and a control system of the electric discharge machining processing feed automatic control. An electric discharge machining processing feed method utilizes a feed automatic control system to feed automatically. The feed automatic control system uses a comparison circuit which receives discharge gaps to be connected with an execution circuit through an amplification drive circuit, feed signals of the execution circuit are fed back to the comparison circuit through a controlled plant circuit and a sampling circuit and are in electric connection with the controlled plant circuit, the sampling circuit and the comparison circuit. The method and the control system of the electric discharge machining processing feed automatic control can control sizes of discharge gaps effectively, achieve the effect of electrical discharge machining, have the advantages of being light in weight, small in size, low in cost, stable in performance, simple to operate, high in response and long in service life, improve use ratios of pulsed power supply, avoid arcing and burning, enable electrosparking to achieve better processing performance, are suitable for use of portable spark machines, and reflect the features that the portable spark machines are portable, economical, popular and easy to operate.

Description

technical field [0001] The invention relates to the technical field of automatic control of electric discharge machining feed, in particular to a method and a control system for automatic control of electric discharge machining feed. Background technique [0002] At present, in EDM, one pole of the pulse power supply is connected to the tool electrode, and the other pole is connected to the workpiece electrode, and both poles are immersed in a liquid medium with a certain degree of insulation (commonly used kerosene or mineral oil or deionized water). The automatic feed control system controls the forward and reverse rotation of the motor according to the gap between the electrode and the workpiece. The motor is connected to the screw to drive the tool electrode to feed and retract, so as to ensure that the tool electrode and the workpiece maintain a small discharge during normal processing. gap. There are many types of feed control systems for EDM, which can be roughly div...

Claims

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Application Information

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IPC IPC(8): B23H1/02
Inventor 张少波黄建伟丁向阳
Owner LUOYANG XINCHENG PRECISION MACHINERY
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