B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
327/94
B23K 37/02 (2006.01) B23K 11/10 (2006.01) B23K 11/31 (2006.01) B23K 37/04 (2006.01)
Patent
CA 1159520
TITLE WELDING APPARATUS FOR POSITIONING AND SECURING COMPONENTS OF A WORKPIECE ABSTRACT OF THE DISCLOSURE A fixed frame has guide members that slidably support a welding machine into and out of a preselected position relative to the components of a workpiece. The workpiece preferably includes a first component which is secured in a fixed position by a clamping device. The clamping device includes a pair of jaws that retain the first component fixed relative to the welding machine. A second workpiece component is positioned on a support member that is connected to and movable with the welding machine into a predetermined position with respect to the workpiece first com- ponent. A first pair of piston cylinder assemblies on the frame actuate the clamping device to engage the first component in a fixed position. Thereafter, a second pair of piston cylinder assemblies on the frame are actuated to advance the welding machine on the frame. Movement of the welding machine moves the support member into engagement with the second workpiece component and then moves the second workpiece component into a precisely controlled position relative to the first workpiece component. A third piston cylinder assembly is operable to pivot an upper welding tong into overlying contact with the abutting first and second workpiece components when the workpiece components have been moved into the prede- tenmined position. Thereafter, the welding machine is actuated to spot weld the first and second workpiece components where the spot weld is located at a preselected distance from the point where the second work- piece component is supported by the support means.
357921
Ductmate Industries Inc.
Macrae & Co.
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