Truss welding equipment convenient to fix

The invention relates to the technical field of welding equipment, in particular to convenient-to-fix truss welding equipment which comprises a welding machine body, a mounting plate, a feeding frame, a top plate fixed on the inner surface of the mounting plate, a hydraulic rod mounted at the top of the top plate, and a welding plate fixed with a piston rod of the hydraulic rod, wherein the mounting plate and the feeding frame are fixed on the inner surface of the welding machine body; the surface of a piston rod of the hydraulic rod is fixedly sleeved with the transverse plate, and a hollow frame is fixed to the surface of the transverse plate; according to the welding equipment, a truss body of a welding part can be pressed down and fixed, so that the truss body can be in better contact with a floor support plate body, in addition, the equipment can shield sparks generated in the welding process, meanwhile, an auxiliary mechanism can also press down the truss body to a certain degree, and the welding effici