The main structure of the machine tool is inverted T-shaped and fully movable column structure; Large span design, high rigidity, high strength; It can automatically exchange worktables and cutting tools in the processing process; It can be clamped at one time for milling, drilling, reaming, boring, reaming, tapping and other processes of four surfaces; Modern machine tool and control concept, compact structure design; Ensure the processing requirements of single piece or small and medium batch products with high efficiency and precision; It is suitable for complex machining of box parts.