US Patent 7810697 Turntable welding system with light curtain protection

A robotic welding system is provided that includes multiple welding cells equidistantly spaced in a circular arrangement, multiple perimeter light curtains to provide safety protection around the welding cells, a turntable centrally located in the circular arrangement, and multiple welding robots attached to the turntable. The welding system further includes a first welding process and a second welding process whereby both the first welding process and the second welding process each include a primary welding operation and a secondary welding operation whereby the turntable rotates between the welding cells to perform the primary and secondary welding operations.