The utility model discloses a high-
hardness steel special-shaped part
machining device. The high-
hardness steel special-shaped part
machining device comprises an
argon arc welding cutting gun, a guide
pipe, a stud, a U-shaped plate, a transmission shaft, a transmission box, a worm, an L-shaped pulling rod, a worm gear, a strip-shaped plate, an I-shaped base, a screw rod and a screwing
handle. The device has the advantages that the screw rod is driven to rotate by rotating the screwing
handle, and the screw rod is in threaded connection with the screw hole in the I-shaped seat, so that position height adjustment can be carried out on the strip-shaped plate and the connected part of the strip-shaped plate, and the corresponding end part of an
argon arc welding cutting gun is close to the
welding part of a steel plate; the L-shaped pulling rod is pushed and pulled to rotate by 180 degrees, the worm, the worm gear and the transmission shaft of the worm can be driven to rotate, U-shaped plates connected with the
argon arc welding cutting guns are further driven to rotate slowly, the stability of routing of cutting holes is guaranteed, the two argon arc
welding cutting guns rotate concentrically with the same
diameter, and the cutting efficiency of the same cutting hole is improved; and by adjusting the distance between the two argon arc
welding cutting guns on the top, the cutting requirements of different steel plate holes can be met.