Bridge type five-axis high-speed milling device

The utility model discloses a bridge type five-axis high-speed milling device which comprises a base, a built-in sliding groove is formed in the inner bottom face of the base, a first lead screw rod is rotationally installed in the built-in sliding groove, a first lead screw sleeve is connected to the side wall of the first lead screw rod in a sleeved mode, and a movable plate is fixedly connected to the side wall of the first lead screw sleeve in a sleeved mode. A connecting seat is welded to the upper portion of the moving plate, connecting shafts rotationally penetrate through the two sides of the connecting seat, the side walls of the two connecting shafts are sleeved with rotating plates and gears, two sawtooth plates are fixedly installed on the inner bottom face of the base, and first electric telescopic rods are fixedly installed on the opposite faces of the two rotating plates; and clamping plates are fixedly mounted at the end parts of one ends of the two groups of first electric telescopic rods. Th