| 摘要 |
PURPOSE:To permit the stable work with high accuracy by installing a suspension controller for suspending the working feed at prescribed intervals onto a driving controller for providing the relative feed according to the working shape, in a wire-cut electric discharge apparatus. CONSTITUTION:In the electric discharge machining, motors 7 and 8 are driven by an NC controller 10, and the feed according to the worked shape is continuously performed. Since control is performed so that the working feed is suspended at prescribed intervals in this case, bending can be reduced. In other words, the fundamental clock pulses generated by an oscillator 12 are counted by a counter 13, and said counter 13 is a time apparatus which outputs a signal each time when the counted number reaches a preset value according to demand, and a control circuit 14 is operated by the time signals, and suspension control signals are applied into the apparatus 10, and applied into the motors 7 and 8 for a prescribed time, and the control signal is cut-off. Thus, stable work with high accuracy can be carried-out. |
