DO MOVABLE TYPE AUTOMATIC WELDING DEVICE FOR SPIRAL STEEL PIPE

摘要

A movable device for automatically welding a spiral pipe is provided to uniformly form welding beads to maintain an outer portion of the spiral pipe in a clean state. A movable device for automatically welding a spiral pipe(P) includes a steel pipe rotating unit(10) and a torch moving unit(20). The steel pipe rotating unit includes a plurality of rollers(12) driven through the operation of a first motor(M1) and rotates the spiral pipe while supporting the spiral pipe. The torch moving unit is transported along a rail(21) lengthwise along the spiral pipe in adjacent to the steel pipe rotating unit. The torch moving unit has a torch(26) so that the torch is finely adjusted.