手工氩弧焊机半自动改造电控方案

Design and application of electric control scheme of manual argon arc welding machine,semi-automatic transformation

在不改变传统手工送丝钨极氩弧焊机(TIG)基本构造的前提下,对其电气控制部分进行改造为半自动氩弧焊机。改造后进行了通电试验,在热待机状态,即焊机高频引弧系统未工作时,新增的送丝控制电路工作很正常,达到预期的效果。一旦高频引弧系统工作,直流调速模块便失去原有的控制功能——调速模块损坏。

Without changing the traditional manual wire tungsten argon arc welding machine（TIG）basic construction,turn it into semi-automatic argon arc welding machine,to modify its electric control part. After transforming,the electricity experiment in hot standby mode,namely the high frequency arc welder system does not work,the new wire control circuit is normal,achieves the desired effect. Once the high frequency arc system works,Dc speed control module will lose the original control function,speed control module is damaged.