In order to join
parts successfully in a robotic welding application, individual parts must be
aligned precisely and held securely in place while the welding is proceeding. An
important consideration, then, is the design of a fixture which holds the
individual parts in the proper alignment. The tool must allow for quick and easy
loading, it must hold the parts in place securely until they are welded together
and must allow the welding gun unrestricted access to each weld point.