Machining drilling machine

The invention discloses a machining drilling machine which comprises a base, a clamping mechanism, a first drill bit mechanism and a second drill bit mechanism, wherein the first drill bit mechanism and the second drill bit mechanism are installed at one side of the base, the base is of a T-shaped sliding rail structure formed by a first sliding rail and a second sliding rail, a workpiece enters from one end of the first sliding rail, under the action of a direction changing mechanism, according to specific requirements, a workpiece is guided to slide out along the first sliding rail or slide along the second sliding rail for secondary drilling machining, and operation is simple and flexible; through the action of a first rack and a second rack, the state of the second rack is adjusted in advance, a shifting rod is used in cooperation, and after the first drill bit mechanism works, a sliding block can be controlled to slide along the corresponding sliding rails, the sliding block does not need to be controlle