Patent ID: 8770461
Filing Date: 2014-07-08
Classification: B23K

Abstract:
1. A pipe welding apparatus, comprising: a support fixed to the ground; a torch which is supported by the support and is formed to correspond to a welding portion of a pipe; a first rotation part for rotating the torch in a circumferential direction of the pipe up to a predetermined angle; and a second rotation part for rotating the torch in an axial direction of the pipe up to a predetermined angle, wherein the first rotation part comprises an outer bracket which performs a horizontal reciprocating motion along a guide provided at the support and an inner bracket which is hinge-connected to the outer bracket around a rotating axis, and wherein the second rotation part comprises: a fixing member attached to the support; a second rotation part connecting member for connecting the torch and the fixing member; a screw fixation member connected to the fixing member; a central member which becomes a center of rotation; and a second rotation part bolt which is formed to passing through the fixing member and the screw fixation member and provides a welding force so that the fixing member rotates around the central member.