Device for monitoring work spindle in machine tool, has radar system connected with processing device, where measure for deviation of spindle and ball bearings of spindle in specified state is determined based on received reflected signal

摘要

The device has a radar system (11) i.e. frequency modulated continuous wave radar, arranged at a fixed part (8) of a processing machine such that the system is in a position to irradiate a radar signal and receive the reflected radar signal on a rotating part (10) of a work spindle (1) during operation of the machine. The system is connected with a signal processing device, where a measure for deviation of the spindle and ball bearings (5, 6) of the spindle in a specified state is determined based on the received reflected radar signal.