Apparatus and method for automatically aligning a welding...

Details Apparatus and method for automatically aligning a welding... Apparatus and method for automatically aligning a welding...

B - Operations, Transporting

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327/60, 327/73

B23K 37/06 (2006.01) B23K 9/12 (2006.01) B23K 26/03 (2006.01) B23K 26/04 (2006.01) B23K 26/14 (2006.01) B23Q 35/128 (2006.01)

Patent

CA 2040166

Apparatus and method for aligning a welding device along the center of a gap defined by confronting edges of at least two workpieces to be joined, wherein relative motion between the welding device and the workpiece gap occurs along a longitudinal axis substantially parallel to the gap such that the proximal edges of the workpieces can be joined by forming a weld seam along the gap during the relative motion. The apparatus preferably includes an imaging system for determining the location of the gap center relative to a predetermined two dimensional coordinate system by monitoring an image of a vision area along the gap downstream of the welding zone. In a preferred embodiment, the imaging system is effectively isolated from the welding zone through use of a high magnification optics system, a shroud structure, an independent light source, and a vectored jet of inert gas supplied to the welding zone.

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