CNC machine tool is a kind of automatic machine tool equipped with program control system, which can make machine action and machining parts according to the programmed procedure. It combines mechanical, automation, computer, measurement, microelectronics and other new technologies, the use of a variety of sensors in the CNC machine tools used in the sensor mainly photoelectric encoder, linear grating, proximity switches, temperature sensors, hall sensors, current sensors, voltage sensors, pressure sensors, liquid level sensors, rotating transformers, Induction synchronizer, speed sensor, etc., mainly used to detect the position, linear displacement and angular displacement, speed, pressure, temperature and so on.
Requirements for sensors for CNC machine tools
1 high reliability and strong anti-interference ability;
2 Meet the requirements of precision and speed;
3 The use of maintenance is convenient, suitable for machine tool operation environment;
4 low cost.
Different kinds of CNC machine tools for the sensor requirements are not the same, in general, large machine tools require high speed response, medium and high-precision CNC machine tools to the requirements of precision-oriented.