Positioning device for H-shaped steel welding

The utility model discloses a positioning device for H-shaped steel welding, which comprises a concave frame, a double-shaft motor is fixedly mounted at the top of an inner cavity of the concave frame, the output ends of the left side and the right side of the double-shaft motor are fixedly connected with screw rods, one end of each screw rod is rotatably connected with the joint of the concave frame through a bearing, and the other end of each screw rod is fixedly connected with a screw rod. According to the H-shaped steel clamping and limiting device, H-shaped steel can be conveniently clamped and limited through the arrangement of the concave plates, the studs, the clamping plates and the rotating handles, the concave plates on the two sides can drive the H-shaped steel on the two sides to move, make contact and be attached through the arrangement of the concave frames, the double-shaft motor, the screws, the rectangular plates and the driving plates, and through the arrangement of the structure, the H-sha