In fully automated final assembly of passenger cars, roofs are inserted precisely into painted bodies using robot grippers. During this process, the glass roofs are gripped from a storage container and inserted with millimeter precision. Four measuring blue laser light triangulation laser distance sensors reliably position the gripper arm in relation to the body. The sensors are installed on the side of the gripper module and transmit the position to the robot control. Thanks to the blue laser light, they measure precisely on painted, glossy or dark surfaces.
The contactless laser triangulation sensors work according to the angle measurement principle, which enables reliable and highly precise measurement in the close range up to 1,000 mm. The triangulation sensors deliver stable measured values regardless of colors, shapes, rough and textured surfaces.