Machining center, cnc, is the high efficiency of automated machine tools used in machining complex shapes of machinery and equipment and CNC systems. The processing center known as the computer gongs. Machining center equipped with a tool magazine with automatic tool change function, multi-process CNC machine tools is a fixture of the workpiece. The processing center is a high degree of mechanical and electrical integration products, after the workpiece clamping, the numerical control system can control the machine automatically selected according to different processes, tool change, automatic knife, automatic change the spindle speed, feed rate, continuous completion of drilling, boring, milling, reaming, tapping and other processes, thus greatly reducing the auxiliary process time of the workpiece clamping time, measurement, and machine adjustments, processing more complex shape, high precision, good economic varieties replace the frequent parts .