Automatic welding support

The utility model relates to the field of correcting tooling production, in particular to an automatic welding support. The automatic welding support comprises a barrel, the barrel comprises a left barrel and a right barrel, a driving carrier roller is arranged below the left barrel, a driven carrier roller is mounted at the lower end of the right barrel, the left barrel is welded with the right barrel, the right barrel is connected with a support, the support comprises a rotating body and a supporting body, butt joint of two sections of barrels is usually performed on dedicated carrier rollers when required during device fabrication, the driven carrier roller is driven by the driving carrier roller to achieve synchronous driving, device transverse or center bias usually occurs due to driving errors, weld joints can not be accurately matched with an automatic welder, the support and play end barrels are temporarily fixed through spot welding, the rotating body of the support can rotate together with the barrels, the supporting body at the other end is fixed on the ground, thereby, device deviation can be prevented, normal welding of the weld joints can be achieved, and deviation is avoided.