| 摘要 |
PURPOSE:To improve operation performance by memorizing the transfer passages of a tool through manual feed after the suspension of automatic operation and transferring servomotors in the reverse order by a return instruction and restarting automatic operation, in the spark erosion machining for cutting mold, etc. CONSTITUTION:When a start button 104c is pushed with a mode selecting switch 104a in memory operation mode, a processor 101 reads-out the NC data of a RAM 103 and carries-out automatic operation. When a feed hold button 104d is pushed at this time, the processor 101 accommodates the coordinate value Po of the present position into the memory region 105c of a working memory 105. Then, the transfer passages by the job buttons 104f-104k in the jog feed mode by manual operation are memorized into the memory region 105C. When a return instruction button 104m is pushed, servomotors 107X-107Z are operated according to the reverse order to the memory passages, and when the tool on a machine tool 109 reaches the coordinate value Po of a work suspension point, automatic operation is restarted. |
