Automatic numerical control welding device for stainless steel flange

The utility model relates to the field of flanges, in particular to a stainless steel flange automatic numerical control welding device which comprises a workbench, a dustproof cover arranged at the upper end of the workbench, a limiting frame arranged on the left portion of the upper end of the dustproof cover, a first motor arranged in the limiting frame, a rotating rod arranged at the lower end of the first motor, and a fixing rod arranged at the left end of the rotating rod. A first electric telescopic rod is arranged at the left end of the fixing rod, a welding head is arranged at the lower end of the first electric telescopic rod, a plurality of supporting blocks are arranged at the upper end of the workbench, and the same welding table is arranged at the upper ends of the multiple supporting blocks. A semi-finished flange is welded in a larger range through the structures such as the first motor, the rotating rod, the fixing rod, the first electric telescopic rod and the welding head, and the semi-fini