Object monitoring device for numerically controlled machine tools has probe connected via flexible shaft to stepper motor

摘要

The device has a probe (1) which controlled by via a motor drive. The control device includes a control card (7) with a microprocessor. The motor drive is an electrically programmable stepper motor (5), whose torque is transmitted to the probe via a flexible shaft (2). The control device includes a Hall effect absolute position detector with a decoder disc (3) arranged on the shaft (2) of the stepper motor. An Independent claim is also included for a method of monitoring numerically controlled machine tools.