| 摘要 |
PURPOSE: To satisfactorily check whether a forced control member surely functions in any machining process by providing a sensor for detecting the relative position of an operation rod to a stopper part. CONSTITUTION: A forced control member 27 functioning between an operation rod 20 and a stopper part 22 is provided. A sensor 50 for detecting the relative position of the operation rod 20 to the stopper part 22 is provided, and a control unit 52 compares position information Z detected by the sensor 50 with a target values Z1 , Z2 , and checks the function of the forced control member 27. When some trouble occurs, the machine is stopped to remove the trouble by the hand of a worker. |
