CNC machine tools: is a kind of automatic machine tools with program control system, can be programmed according to the program, so that the movement of machine tools and parts. It combines the new machinery, automation, computer, measurement and micro electronics technology, using a variety of sensors, sensor used in CNC machine tools include photoelectric encoder, grating, proximity switch, temperature sensor, Holzer sensor, current sensor, voltage sensor, pressure sensor, liquid level sensor, resolver and inductosyn speed sensor, etc., is mainly used to detect the location, linear displacement and angular displacement, velocity, pressure, temperature etc..
CNC lathe is a digital control machine tool (numerical control machine tools Computer) for short, is a kind of automatic machine tool with the program control system. The control system can process the program which is provided by the control code or other symbolic instruction, and decode it, and use it to express the numerical control device through the information carrier. The operation of the numerical control device to send out a variety of control signals, control the movement of the machine, according to the requirements of the shape and size of the drawings, automatic parts processing out. CNC machine tools to solve the problem of complex and precision parts processing, small batch and multi variety, is an effective and flexible, automated machine tools, represents the development trend of control technique of modern machine tools, is a kind of typical mechatronic products.