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我厂使用的ПШ-5半自动焊机,改成自动焊机后。由于改装时只是单独的改变了输条机和焊把的结构,电气线路并未改变。经过长时期的使用,感到有以下缺点:调整焊丝伸出咀头长度或对准焊缝时,很容易造成焊丝与被焊工作物间引弧,伤害焊工的眼睛。另外进退焊丝的控制电钮装在配电箱上,在距配电箱较远的地方操作时,调整焊丝很不方便。因此我厂将配电箱的电气线路作了如下改变(见图),去掉配电箱上的焊丝控制钮,另装了一个磁力起动器,并在自动焊小车上加装
I used the plant semi-automatic ПШ-5 welder, automatic welder into. As the conversion is only a single change in the structure of the welding machine and welding rod, the electrical circuit has not changed. After a long period of use, I felt the following disadvantages: Adjusting the length of the welding wire or aligning the welding seam, it is easy to cause welding wire and welding work between the arc, hurt the welder’s eyes. In addition to the welding wire control button installed in the distribution box, away from the distribution box in the operation, the adjustment of the wire is not convenient. Therefore, I plant the distribution box electrical circuit made the following changes (see Figure), remove the distribution box on the wire control button, and the other installed a magnetic starter, and in the automatic welding car to install