Patent ID: 7810697

Claim:
A robotic welding system comprising: multiple welding cells including a first pair of welding cells and a second pair of welding cells equidistantly spaced in a circular arrangement; a turntable centrally located in the circular arrangement, the turntable having a stationary portion and a rotating portion, the rotating portion including: a top portion; a first ring located between the top portion and the stationary portion; and a second ring located between the first ring and the stationary portion; multiple welding robots operatively attached to the rotating portion of the turntable; multiple perimeter light curtains positioned at a perimeter of the multiple welding cells; multiple inner light curtains located between the turntable and a front portion of each multiple welding cell; a first set of multiple limit switches; and a second set of multiple limit switches, wherein the first ring engages the first set of multiple limit switches to activate and deactivate the perimeter light curtains, and wherein the second ring engages the second set of multiple limit switches to activate and deactivate the inner light curtains.