Numerical control retainer window milling machine

The utility model discloses a numerical control retainer window milling machine which adopts an overall high-rigidity anti-vibration cast machine body. A linear guide rail and a precision ball screw are arranged on the machine body; a left longitudinal movement sliding saddle, a right longitudinal movement sliding saddle, a sliding seat and a transverse adjustment device are arranged on the machine body; milling power heads are arranged on a left sliding body and a right sliding body; a main shaft component is arranged in the middle of the machine body; a clamping device component is arranged on the main shaft component. According to the numerical control retainer window milling machine, a longitudinal driving device, the sliding saddles and the main shaft component are directly arranged on the overall high-rigidity anti-vibration cast machine body; the rigidity is high; moreover, full-servo control longitudinal movement and high-frequency rotation of a workpiece shaft are combined, so that the precision and the stability of milling of a workpiece can be guaranteed; slag is convenient to discharge; the time can be saved; the processing efficiency is improved.