在数控车床和仿形车床之类的自动切削的机床中,刀架是用响应装置来驱动的,再在尾座上设置一个用接触开关做的刀尖检测装置。使 X 轴滑座停止在切削指令原点上,由响应器移动刀架,使刀尖与该检测装置接触,并由接触信号使响应器停止。根据响应装置的情况,停止精度可为几微米,由于能够 In automatic cutting machines such as numerically controlled lathes and copying lathes, the tool holder is driven by a response device, and a nose switch made with a contact switch is provided on the tailstock. The X-axis carriage is stopped at the origin of the cutting command, the tool post is moved by the responder, the tip is brought into contact with the detecting means, and the contact is stopped by the contact signal. Depending on the response device, the stop accuracy can be a few microns, as it is