The invention relates to the field of automated welding, and more particularly, to an automated, gas metal arc welding apparatus for externally welding abutting sections of pipe. The apparatus has a motorized main carriage (28) for travelling circumferentially about one of the pipe sections to be welded. The apparatus is provided with a welding torch (42) which is connected to the main carriage (28). The welding torch is movable relative to the main carriage by the actuation of a multi-axis drive mechanism. The multi-axis drive mechanism has a horizontal transport mechanism (46) for linearly translating the torch transversely of the weld seam, a vertical transport mechanism (48) for vertically displacing the torch transversely of the weld seam and an angular transport mechanism (50) for pivotally moving the torch transversely of the weld seam. A controller is provided for actuating the various transport mechanisms individually or simultaneously if desired.
申请公布号
WO0230608(A1)
申请公布日期
2002.04.18
申请号
WO2001CA01311
申请日期
2001.09.13
申请人
O.J. PIPELINES CANADA AN ALBERTA LIMITED PARTNERSHIP;MARHOFER, WILLIAM, ELI;SANFORD, SHELL;FLYNN, TIM;CRAIG, JOHN
发明人
MARHOFER, WILLIAM, ELI;SANFORD, SHELL;FLYNN, TIM;CRAIG, JOHN