CNC lathe is one of the most widely used CNC machine tools. CNC lathe is mainly used for processing shaft, disc and other parts of the rotary. Through the operation of numerical control machining program, it can automatically finish the cutting processing of inner and outer cylindrical surface, conical surface, forming surface, thread and end face, and can carry out the work of turning groove, drilling, reaming, reaming and so on. The turning center can complete more processing procedures in a single clamping, improving the processing accuracy and production efficiency, especially suitable for the processing of complicated rotary parts. Some common machine tools can not or inconvenient processing parts, processing quality stability, reduce the labor intensity of workers.