Rotary welding device for steel platform

The utility model relates to the technical field of positioning devices, in particular to a steel platform rotary welding device which comprises a supporting frame, an overturning frame, a supportingbeam, a left baffle, a right baffle and a plurality of clamps. The two ends of the overturning frame are connected with the supporting frame through rotating shafts. The support beam is flatly laid onthe roll-over stand; the bottom plate is used for supporting the steel platform; the two ends of the left baffle are connected with two side plates on the steel platform through positioning pins. Thenumber of the right check blocks is two, the two right check blocks are fixed to the two ends of the right side of the overturning frame respectively, the right check blocks are provided with positioning pins used for positioning a front baffle of the steel platform, and the multiple clamps are fixed to the two sides of the overturning frame at equal intervals and used for positioning the two side plates. By means of the d