Bowl feeders are a great way to orient parts for assembly, (providing you can justify the tooling expensive a changeover times,) but there are some geometries where it’s not easy to discriminate between similar parts or poses.
Enter the smart bowl feeder!
As reported in Assembly magazine, (“Vision Enables Feeder to Handle Multiple Parts,” (July 27, 2009,) Rixan have added machine vision and a robot to the humble bowl, thus giving it much improving part sorting abilities.
The article, which I encourage you to read, gives quite a lot of detail about how the PatMax tool from Cognex, combined with various lighting configurations, is used to identify parts by their shape. It’s a good application story; take a look.
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