| 摘要 |
PURPOSE:To prevent the adverse effect of noise or the like, by using an optical fiber as a signal transmitting medium between a probe and the operation part of a control unit. CONSTITUTION:A probe 25 is mounted to the leading end part of a spindle 19 through an adaptor 23 in a detachable manner. One end of an optical fiber 27 is connected to the upper end part of the probe 25 through a device optically converting an electrical signal and the fiber 27 passes through the adaptor 23, the spindle 19 and a central carriage 17. Further, the fiber 27 passes through the cable channel 29 mounted to the right side surface of a machine base 3 so as to extend to an X-axis direction through the upper surface of the upper beam U of a main carriage 9 and the right side surface of the carriage 9 and extends to the rear part in the X-axis direction to be connected to a control part 31 through an apparatus converting an optical signal to an electrical signal. In the wiring of the fiber 27, the excessive bending of the fiber 27 is prevented. By this mechanism, the probe 25 is brought into contact with an article to be measured and a touch signal rises to be transmitted to the control part 31 but accurate transmission can be performed without being under the effect of noise.
|
