The machine body adoptes optical computerized structure design with the features of wide body and column,precise casting,good stability,strong shock absorption and rigid structure 3-axis rectangle guuide rail adopted the design of triangle supporting with super HF quenching treatment and fine peripheral grinding Big precise guiding ball screw equipped with precise angle ball bearing with tightening installation,boasting accurate feeding and strong loading Turcite-B wearing bit and other friction,parts which touch with rectangle guide rail has good abradability 3-axis guide rail uses airtight protection,cover,which has character of good chip collection function Equipped with pneumatic tool replacement device,it is quick and convenient to change the tools,ensuring the high efficient production.