Patent ID: 8987637
Filing Date: 2015-03-24
Classification: B23K

Abstract:
1. A welding machine for performing a circular weld, comprising: a support structure to support a work piece to be welded at a first position; a rotatable support rotatable around a first axis to move a torch head along a weld path around a circumference of the work piece supported by said support structure; a mount for a torch head, said mount being supported on said rotatable support to be rotated around the first axis, and at least a portion of said mount being pivotable relative to said rotatable support, the pivoting being about a second axis; a motor arranged to be rotated around the first axis by said rotatable support, said motor being connected to said portion of said mount by a threaded rod and being arranged to pivot said portion of said mount about the second axis to move the torch head across to the weld path; and a controller connected to control said motor.