The CNC milling machine has only three axes, that is, the conventional X, Y, Z, while the machining center can be four-axis or five-axis linkage, the CNC milling machine is the movement of three coordinates, namely X, Y, Z, and the tool is clamped on the spindle to carry out Processing parts. The machining center can be said to be a CNC machine tool with more than four coordinates, which can realize multi-axis linkage processing, and is suitable for processing parts with complex cavities and complex surfaces.

      The machining center has an additional tool magazine and tool change system on the basis of the CNC milling machine. The CNC milling machine does not have a tool magazine, and most of the machining process is manually changed. CNC milling machines are mostly used for milling relatively simple parts surfaces or milling relatively shallow holes. The machining center itself is equipped with a manipulator tool magazine, and the manipulator automatically changes the tool. The tool magazine can hold a lot of knives, and the machining center users generally install the knives according to the actual processing classification. Common processing tools include face milling cutters, end milling cutters, keyway milling cutters, ball cutters, boring cutters, thread cutters, etc., with the function of automatic tool exchange. During the clamping, the processing tool on the spindle is changed by the automatic tool changer, and various processing functions such as drilling, boring, reaming, tapping, grooving, etc. are realized, which is convenient for parts processing!

      Through the function of automatic tool change, it can be seen that the machining center is a kind of CNC machine tool with tool magazine and automatic tool change device. It combines the functions of CNC milling machine, CNC boring machine and CNC drilling machine together, and has the advantage of powerful processing functions.