LARGE-DIAMETER CIRCULAR TUBE TIG WELDING MACHINE TO WHICH OVERLAY WELDING TECHNIQUE IS APPLIED

摘要

The present invention relates to a tig welding machine, which includes a main body frame having a vertical tower extending upward from a center of a base plate, an ascending/descending body installed to be capable of moving up and down through the vertical tower, a horizontal advancing/retreating body installed to be capable of advancing/retreating in a horizontal direction orthogonal to the extension direction of the vertical tower with respect to the ascending/descending body, a tube supporting and rotating part supporting the outer circumferential surface of a circular tube to be welded and capable of rotating the supported circular tube, and a welding module mounted at one end along the longitudinal direction of the horizontal advancing/retreating body, provided with a torch discharging a welding wire supplied from a supply reel, and welding the circular tube to be welded mounted on the tube supporting and rotating part. According to such a tig welding machine, stable support and rotation can be performed with respect to a change in the outer diameter of the circular tube and alignment with the torch can be easily adjusted, and thus welding efficiency can be improved.;COPYRIGHT KIPO 2019