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BMW Relies on 3D Measuring Technology for Bin Picking

To guarantee the high quality standards in the automotive industry, engineers at the BMW automotive group now use several fully automated bin picking cells for series production of passenger cars at the state-of-the-art plant in Leipzig, Germany. Equipped with 3D sensors from the Wenglor ShapeDrive series, they guarantee precise picking of chaotically arranged car body metal parts.

Stripe patterns are first projected onto the objects via structured light, which are recorded by the integrated camera with micrometer accuracy. The resulting point cloud data set is sent to the software analysis module real-time. A virtual 3D model of the bin contents is created which is used to derive exact coordinates for the robot picking process. The overall system consists of robot, 3D cameras, software and controller.

The Wenglor ShapeDrive 3D sensors offer a high dynamic range with reference to the object’s color and brightness. The sensors deliver reliable results even for metallic and glossy surfaces. The extremely high resolution sensors detect even the smallest component features as well as large measuring volumes. The entire content of Euro boxes and Euro pallets can be quickly scanned. Simultaneous measurement of signal strength makes it possible to generate high-contrast grey tone images which can also be used for the detection of data matrix codes and barcodes or contamination on objects, without any additional hardware.

ShapeDrive 3D measuring volumes from range from 30 x 25 x 10 mm to 1300 x 1000 x 800 mm, offer short recording duration of 0.188 seconds for the entire measuring volume and a rapid data exchange of up to 12 million measuring points per second via 10 gigabit Ethernet connection.

For more information: www.wenglor.com


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