System for assembling, in particular by welding, structures made up of elements of pressed sheet metal, such as motor-vehicle bodies or subassemblies thereof
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United States of America Patent
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Jun 16, 2009
Issued Date -
N/A
app pub date -
Dec 14, 2007
filing date -
Dec 22, 2006
priority date (Note) -
Expired
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Abstract
A flexible system for welding motor-vehicle bodies or subassemblies thereof envisages a series of pairs of side frames provided with referencing and clamping devices for keeping in the correct position the structures to be assembled during welding. For each different type of body to be assembled a different pair of side frames is provided, equipped with referencing and clamping devices adapted to the respective type of body. Each pair of side frames is associated to a basic structure, with which it forms a unitary referencing and clamping module. Said modules can be moved through the assembly station to follow one another in the operative welding position, according to the type of body to be welded. The structure to be assembled, or at least part thereof, is fed to the welding station by means of a conveying line that is totally independent and separate from the basic structures of the modules.
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