Vertical machining center refers to the machining center with the spindle axis and the table set perpendicularly, which is mainly suitable for processing complex parts such as plates, discs, molds and small shells. Vertical machining centers can perform milling, boring, drilling, tapping and cutting threads. The vertical machining center is at least three-axis two-linkage, and generally three-axis three-linkage. Some can be controlled by five or six axes. The height of the column of the vertical machining center is limited, and the processing range of the box workpiece should be reduced, which is the disadvantage of the vertical machining center. However, the workpiece clamping and positioning of the vertical machining center is convenient; The motion trajectory of the cutting tool is easy to observe, the debugging program is convenient for inspection and measurement, and the problem can be found in time and the shutdown can be processed or modified; The cooling conditions are easy to establish, and the cutting fluid can directly reach the tool and the machining surface; The three axes coincide with the Cartesian coordinate system, which feels intuitive and consistent with the perspective of the drawing, and the chips are easy to remove and fall to avoid scratching the processed surface. Compared with the corresponding horizontal machining center, the structure is simple, the footprint is small, and the price is lower.