Precision Registration for Robotic Pinned Layup
Original Publication Date: 1987-Jan-01
Included in the Prior Art Database: 2005-Jan-31
A registration scheme for robotic application uses a laser light source and a charge-coupled device (CCD) light sensor to locate a slot on a printed circuit board (PCB) and reference it to the CCD to enable a robot to precision locate the PCB on a location pin. A laser light source (not shown) is located inside a location pin 1 (Fig. 1), and projects a light column 2 up through a slot 3 of a PCB (Image Omitted) 4 where the light strikes the CCD light sensor 5. The light column 2, after passing through the slot, is identical to the size and shape of slot 3. A robot arm 6 moves a gripper 7 that holds PCB 4 until slot 3 encounters light column 2.