Large steel pipe pile high-position circular seam submerged arc welding system and control method thereof

The invention relates to a large steel pipe pile high-position circular seam submerged arc welding system, which is characterized in that inner and outer side circular seams of two steel pipe piles form V-shaped grooves, and comprises a roller tire rack for supporting and driving the steel pipe piles to rotate, a welding gun lifting bracket, and a welding gun protecting and adjusting integrated structure and a grinding and monitoring integrated structure which are arranged on the welding gun lifting bracket, the control unit is electrically connected with the rolling wheel tire frame, the welding gun lifting support, the welding gun protecting and adjusting integrated structure and the grinding and monitoring integrated structure, and the welding gun protecting and adjusting integrated structure and the grinding and monitoring integrated structure are both arranged above a circular seam between the two steel pipe piles. And the grinding and monitoring integrated structure and the welding gun protecting and ad