Patent ID: 8642914
Filing Date: 2014-02-04
Classification: B23K

Abstract:
1. A welding device comprising: a pedestal extending under a pipeline being formed, the pedestal being movable along said pipeline; two half-circle components slidably mounted on said pedestal, each half-circle component being disposed on one respective side of the pipeline; and a welding carriage slidably mounted on one of the two half-circle components, the welding carriage including at least one welding head and at least one welding torch equipped to said at least one welding head, wherein said two half-circle components are slidable between a first relative position and a second relative position, the two half-circle components engage one another in said first relative position and the two half-circle components are spaced apart from each other in said second relative position, the two half-circle components form an orbital carrier in said first relative position, said orbital carrier surrounding the pipeline, and the two half-circle components are away from the pipeline in said second relative position, the pedestal being translatable relative to and along the pipeline irrespective of whether the two half-circle components are in the first relative position or in the second relative position.