CNC lathe and turning center are a kind of high precision and high efficiency automatic machine tool. Equipped with multi-station turret or power turret, the machine tool has a wide range of processing performance. It can process linear cylinders, oblique cylinders, arcs, and various threads, grooves, worms and other complex workpieces. It has linear interpolation and arcs. Interpolation of various compensation functions, and played a good economic effect in the mass production of complex parts.