The invention discloses
plasma arc welding equipment for frame straight
seam welding, and relates to the technical field of
plasma arc straight
seam welding equipment.The
plasma arc welding equipment comprises a rack installed on the upper surface of a
machine base through bolts, and the side face, located below the rack, of the
machine base is connected with a working rack for bearing a frame through bolts. According to the
plasma arc welding equipment for frame straight
seam welding, the end portions of the two frame workpieces are precisely bulldozed and aligned through the aligning mechanism, the initial
assembly error is eliminated, rigid clamping is formed on the two sides of the frame workpieces through the clamping mechanism, the
welding faces of the frame workpieces are forced to be tightly attached, and the
welding efficiency is improved. The aligning mechanism, the clamping mechanism and the original pressing
assembly form three-dimensional multi-point constraint on the frame workpiece, workpiece upwarp, transverse shrinkage and
distortion caused by
welding thermal stress are effectively resisted, finally, the clamping mechanism is in linkage with the top disc to operate, adsorption of the frame workpiece and the working table top is broken, quick and lossless workpiece taking is facilitated, and the welding quality is improved. And deformation of the frame workpiece is avoided.