Vertical machining center is mainly used for machining spare parts with high precision,multi-procedure,complicated shape,such as plate, disk,shell, mould etc. It can complete milling, drilling, reaming,boring,tapping continuously as well as precise machining of slant face, two-dimensional and three-dimensional surface in one single clamping,the process is programmed and batch,production cycle is shorted, thus, the users will obtain good economic benefits.