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1. 发明专利

JPS61119378A Dc arc welding power source 失效
标题翻译：直流电弧焊电源
公开(公告)号：JPS61119378A
公开(公告)日：1986-06-06
申请号：JP24068684
申请日：1984-11-16
申请人： Hitachi Ltd , Hitachi Seiko Ltd
发明人： FUJIWARA KIROKU , ARAYA TAKESHI , FUKUI HIROSHI , TAJIMA SHINJI
IPC分类号： B23K9/073 , B23K9/06
CPC分类号： B23K9/06
摘要： PURPOSE:To regulate a welding current waveform by a simple device, and to execute welding of high quality by adding a deviation value of a detecting welding voltage and an output set value, and a deviation value of a detecting voltage of welding current variation and a reference voltage which has discriminated a short-circuit arc, and controlling an inverter. CONSTITUTION:A feedback circuit 7 value of a deviation of a detecting 13 welding voltage which has rectified and smoothed 10 an input 1 through a rectifier 8 and an inverter circuit 9, and an output set voltage 4, and a deviation- amplified value 17 of an amplified value 14 of a DC reactor or Rogowskii coil 12 voltage of a welding current and a reference voltage 16 which has discriminated 15 a short-circuit arc are added and amplified 18, and the inverter circuit 9 is controlled by an inverter driving circuit 11. According to this method, waveform control of a welding current by a variation of a welding load can be executed by a simple device without using a large-sized welding reactor, and welding is executed with high quality.
摘要翻译：目的：通过简单的装置来调节焊接电流波形，并通过增加检测焊接电压和输出设定值的偏差值，以及焊接电流变化的检测电压的偏差值和识别短路电弧的基准电压，以及逆变器的控制。构成：反馈电路7通过整流器8和逆变器电路9对输入1进行整流并平滑的检测13焊接电压的偏差值，输出设定电压4和偏差放大值17 DC电抗器或Rogowskii线圈12的放大值14焊接电流的电压和鉴别为短路电弧的参考电压16被加法并放大18，并且逆变器电路9由逆变器驱动电路11 根据该方法，可以通过简单的装置通过焊接负载的变化来进行焊接电流的波形控制，而不使用大型焊接电抗器，并且以高质量执行焊接。

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