Metal working – Method of mechanical manufacture – Work holding
Patent
1995-06-19
1997-05-20
Hughes, S. Thomas
Metal working
Method of mechanical manufacture
Work holding
292815, 228 443, 228 494, 228212, B23P 1700
Patent
active
056302690
ABSTRACT:
A method and apparatus for positioning and holding a pair of sheet metal blanks to be butt welded into a compound blank for stamping a larger panel with varying thicknesses. A fixture plate is provided with locating corners matching predetermined reference corners of the blank and with mechanisms for pushing the blanks into the locating corners. The first blank is pushed into abutment with stops that are then pivoted out of the way, after the first blank is clamped in place. The second blank is then abutted with the already clamped first blank, and clamped. The loaded fixture is then transported to a weld station, where the pre positioned blanks can be quickly and efficiently laser welded.
REFERENCES:
patent: 3423502 (1969-01-01), Stimpson
patent: 3785030 (1974-01-01), Une et al.
patent: 3788634 (1974-01-01), Chauvet et al.
patent: 4621797 (1986-11-01), Ziegenfuss
patent: 5276304 (1994-01-01), Sauvage et al.
patent: 5536915 (1996-07-01), Peru et al.
Eisenmenger Mark M.
Wasserbaech Eberhard E.
General Motors Corporation
Griffin Patrick M.
Hughes S. Thomas
Stewart Tisa L.
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