Digit control machine tool that can steadily go up and down

The utility model discloses a digit control machine tool that can steadily go up and down, including numerical control machine tool main body and numerical control frame, the numerical control frame has the support mount pad, a lift drive and the buffering foot device that goes up and down, a lift drive reciprocates through promoting piece drive numerical control machine tool main body, the buffering of going up and down foot device is including the seat that goes up and down, the lifting foot frame, the buffering bracing piece, a buffer spring, slider and the 2nd lift drive, the lifting foot frame comprises lifting foot and crossbeam, be equipped with the guide post between lifting foot's the top and the bottom of lift seat, slider movable mounting is in lifting foot's side sliding tray, the 2nd lift drive installs on the crossbeam and can drive the seat and reciprocates, the bottom both sides of lift seat are equipped with the first containing Groove respectively, a buffer spring installs in the first conta