All the functional definition of nc machine tools: All functional nc machine tools is 45 degrees of inclined bed commonly, there are 60 degrees, 75 degrees, etc. Generally the equipment with rail line, fast speed, high efficiency. Shifting speed is continuous and can add raster ruler into full closed loop, improve the accuracy grade. Screw key components use imported parts, bearings, etc. Full-function nc car can also add power head, into a center for car milling compound. Therefore full-function nc car has high cost, high speed, high precision, high efficiency, etc. Short for numerical control machine tool is digital control machine tool, is a with program control system of automatic machine tools. The control system is able to handle the with logic control code or other symbols in accordance with procedures prescribed by the instruction, and the decoding, with code Numbers, through information carrier type numerical control device. After processing the numerical control device and a variety of control signals, control the action of machine tool, according to the shape and size of the drawing requirements, automatically