| 摘要 |
PURPOSE:To enable, in an electric discharge machine provided with an automatic supplying apparatus of the wire electrode, the judgment whether the wire electrode is supplied through the correct path or not, by providing the wire electrode discharging mechanism with a higher speed than the electrode supplying speed, thereby detecting a change in the speed. CONSTITUTION:In an automatic wire electrode supplying apparatus for a wire cut electric discharge machine, the discharging speed of the wire electrode 38 in the discharging mechanism 74 is adapted to be higher than the supplying speed provided by the roller mechanism 24, 26 for supplying the wire electrode 38 into a pipe guide. If, at the time of the automatic insertion operation of the wire electrode 38, the electrode 38 is passed through the correct path and reaches the discharging mechanism 74, then the speed is increased and the change in the speed is detected by a detector. Thus, whether or not the inserting action of the wire electrode was correctly made can be checked. |
