Machine -building drilling machine

The utility model discloses a machine -building drilling machine, which comprises a supporting table, the welding has the support column that sets up along vertical direction on supporting bench's thelateral wall, be fixed with elevating gear on the support column, elevating gear includes linear guide, slide block body, end cover, end face seal piece, grease nipple, lower seal piece, upper seal piece, steel ball and keeps the ware, slide block body is last through bolt fixedly connected with supporting shoe, install the rolling disc through the pivot on the supporting shoe, the rolling disc has a plurality of electric motor, every along the circumference welding the drill bit is installed respectively to electric motor's output, it props to prop up the last transversal branch that sets upof supporting bench, the transversal branch props and is fixed with the rubber buffering pad board, be fixed with the recess microscope carrier on the rubber buffering pad board, be provided with thethree cabinet that holds o