The present application relates to the technical field of construction machinery structure
welding, and especially to an intelligent
welding device for a lower frame of an
excavator, comprising a base, a fixing seat arranged on the outer wall of the base, a rotary table sleeved on the outside of the fixing seat, an X support placed on the outside of the rotary table, and a continuous
welding device arranged between the rotary table and the X support. The present application uses a rotating roller to real-time clamp and limit two cover plates, which can effectively prevent the cover plate angular deformation caused by the cooling and shrinkage of the weld, and can save the symmetrical welding, segmented skip welding and other processes, reduce the post-welding
slag cleaning,
polishing and other finishing workloads, compress the
processing time, improve the welding forming quality and production efficiency, and meanwhile, with the help of the self-adaptive adjustment of the deflection
assembly, the welding head can be accurately deflected along the inclined plane, the X support complex inclined plane continuous welding can be adapted, the
angular deviation and welding blind area can be avoided, the
weld penetration uniformity and the regular appearance can be ensured, and the welding precision and continuity can be further improved, and the overall welding quality can be stabilized.