GUIDE FRAME SUPPORT DEVICE

摘要

The present invention relates to a guide frame support device for a pipe welding device, the guide frame support device, which supports a guide frame provided on the outer circumferential surface of a pipe to be welded, comprising: a hinge bar connected to the inner circumferential surface of the guide frame; a pair of support bars which rotate by a preset angle with respect to the hinge bar; hinge links one sides of which are connected to both ends of the hinge bar and the other sides of which are connected to both ends of the support bars; and a torsion spring, provided in between the pair of support bars, for providing elastic force so as to rotate the support bars by a preset angle with respect to the hinge bar.