| 摘要 |
<p>A device of simple construction for detecting the completion of automatic connection of the wire electrode (W) in a wire cut electric spark machine. Electricity is supplied from a feeding unit (43) to the wire electrode (W) via a contactor (32) at the time of the automatic connection, and the wire electrode (W) that is supplied comes into contact with a steel plate (44) provided at a unit fed with electricity arranged on the side of taking out the wire electrode (W). Then, the potential of the steel plate (44) at the unit fed with electricity rises, by which the completion of the connection is detected.</p> |
