Computerized Numerical Control Machine (cnc) is a high-efficiency automatic machine tool composed of mechanical equipment and numerical control system which is used to process complex shape workpieces. Machining center equipped with a magazine, with automatic tool change function, the workpiece is a clamping after the multi-processing of CNC machine tools. Machining Center is a high degree of integration of mechanical and electrical products, workpiece clamping, the NC system can control the machine according to different processes automatically select, replace the tool, automatic tool, automatically change the spindle speed, feed, etc., continuous drilling, boring, Milling, hinge, tapping and other processes, thus greatly reducing the workpiece clamping time, measurement and machine tool adjustment and other auxiliary process time, the shape of the complex processing, high precision, frequent replacement of varieties of parts with good economic results