Local heating and cutting device for mounting highway steel box girder

The utility model relates to the related field of steel box girders, in particular to a local heating and cutting device for mounting a highway steel box girder, which comprises a body, a two-axis translation mechanism, a cutting piece and four fixing mechanisms, and the two-axis translation mechanism is provided with an output end capable of randomly moving in a corresponding horizontal plane; the cutting piece is fixedly arranged at the output end of the two-axis translation mechanism; four supporting legs are arranged on the periphery of the bottom of the body, the four fixing mechanisms are arranged on the four supporting legs in a one-to-one correspondence mode, each fixing mechanism comprises an adsorption part and a clamping part, and the clamping parts are used for replacing the adsorption parts for fixing when the body is arranged on the edge of the steel box girder. Firstly, the flame cutter is driven by the two-shaft translation mechanism to walk in the linear direction, and it is guaranteed that t