Metal fusion bonding – With means to juxtapose and bond plural workpieces – Plural discrete workpieces
Patent
1998-02-19
2000-02-22
Heinrich, Samuel M.
Metal fusion bonding
With means to juxtapose and bond plural workpieces
Plural discrete workpieces
228 10, B23K 3704
Patent
active
060270055
ABSTRACT:
A method and apparatus for welding steel frames, which can be subsequently assembled together to form storage racks for holding and supporting inventory stored on pallets, in boxes, or in other bulk form in warehouses. A method according to the present invention, generally, includes the steps of placing a plurality of overlapping frame members in spaced relation to one another on a jig which holds the frame members in place thereon; moving the jig along a conveyor to a welding station which comprises a trigger switch and a welding tip, the trigger switch being operable to switch the welding tip on when the trigger switch is activated; and moving a first interconnecting frame member past the trigger switch, thereby switching the welding tip on to perform a welding operation connecting at least two of the frame members together, and moving the first interconnecting frame member beyond the trigger switch, thereby switching off the welding tip. An apparatus for welding steel frames, generally, includes a support structure for movably supporting a plurality of frame components as they are guided therethrough by a conveyor. The apparatus also includes a conveyor which is movably attached to the support structure, for holding a plurality of frame components in spaced relation to one another and for guiding the frame components through the support structure in a frame welding operation. A drive mechanism is provided for moving the conveyor with respect to the support structure, and at least one welding station is attached to the support structure, the welding station including a welding tip for welding frame components together, and a trigger switch for switching the welding tip on and off.
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