| 摘要 |
PURPOSE:To prevent the occurrence of overcutting, by a method wherein, when it is discriminated that a relative position between a tool and a workpiece is attains a preset movable limit, through control of a drive means, further movement is prohibited. CONSTITUTION:A control part 108 being a signal generating means generates a signal by means of which a tool mount 101 or a work is moved by a given distance at one pulse at a time, and a CPU 105 drives drive motors 102 and 103 through the working of a servo control part 104. The moving position of the tool mount 101 is detected by means of encoders mounted to the two motors 102 and 103, and a shape is computed from a manual input or a program from an input device 109. When a relative position between a tool and a workpiece attains a relative movable limit stored in a memory part 106, the CPU 105 decides it to stop the drive of the two motors 102 and 103. This constitution enables execution of a rapid cutting work without being nervous about overcutting. |
