Welding positioning device for steel member

The utility model discloses a welding positioning device for a steel member, the welding positioning device comprises a welding platform, and an adjusting mechanism, a mounting seat, a first fixing plate, a positioning frame, a fixing rod and a T-shaped inserting block which are arranged on one side of the welding platform, one side of the top of the welding platform is fixedly connected with the mounting seat, and the adjusting mechanism comprises a threaded rod; threaded rods are rotationally connected to the inner sides of the tops of the mounting bases, and the surfaces of the threaded rods are in threaded connection with adjusting rods. The steel member welding device is reasonable in structure, when steel members need to be welded in different directions, through cooperation of the fixing rods, the T-shaped inserting blocks, the positioning frame and other structures, a concentric-square-shaped handle is pulled upwards, the concentric-square-shaped handle drives the fixing rods fixedly connected with th