The present application relates to the technical field of
welding, in particular to a kind of
welding device for building steel structure joint.The technical problem of the present application is that staff
hand shaking can easily cause weld deformation, defects and other security risks.The technical solution of the present application is that it includes
handle, support cylinder, rotating cylinder, rotating smooth unit, etc., the support cylinder is arranged at one end of the
handle, the rotating cylinder is rotatably arranged on the support cylinder, and the rotating smooth unit is arranged on the rotating cylinder and the support cylinder.The present application sets up telescopic
pipe, the staff swings left and right by holding the
handle, so that the support cylinder drives the rotating cylinder to rotate, thereby the rotating cylinder extrudes the telescopic
pipe, the
gas pressure in the telescopic
pipe rises, thereby generating thrust, the rotating cylinder drives the
goose neck pipe to move smoothly through the conductive parts, thereby the weld formed by
welding is uniform in thickness, and the weld quality is guaranteed.