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Automotive Chain Inspection

Automotive Chain Inspection. Application. Provide verification that all chain links are present before guide installation. After installation of guide, provide verification of guide presence and color. Provide verification that rivet has been struck.

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Automotive Chain Inspection

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  1. Automotive Chain Inspection

  2. Application • Provide verification that all chain links are present before guide installation. • After installation of guide, provide verification of guide presence and color. • Provide verification that rivet has been struck. • Various thickness chains need to be inspected on the same line • Various lengths of chain need to be inspected on the same line

  3. Requirements • Link inspection • Distance from camera face to product cannot exceed 4” • Guide Presence/Color • Distance from camera face to product cannot exceed 6” • Colored guide appears every “x” number of inspections depending on chain produced • Rivet inspection • Distance from camera face to product cannot exceed 6” • Every “x” number of inspections there is an intentionally missed rivet for the hook up joint of the chain

  4. Requirements • All inspections must utilize front lighting • All inspections can utilize the same trigger as the chain is being indexed • Vision system must be able to communicate the result of each inspection independently using digital I/O • Vision system must be able to provide an additional output to be used as a heartbeat to verify that an image has been acquired and that the image has been processed

  5. Missing Link LightingArea Array vs. DOAL

  6. Missing Link • Hardware • TM2 camera • 50mm DOAL • 9mm lens • Software • Count tool • Reject if we see any large areas of dark

  7. Rivet InspectionGood rivet

  8. Rivet InspectionMissed Rivet

  9. Rivet Inspection • Hardware • TM2 camera • 25mm lens • 70mm ring light • Software • Four intensity tools • Reject if any tools average intensity is darker than it should be

  10. Guide Presence/ColorColored Guide

  11. Guide Presence/ColorNon-colored guide

  12. Guide Presence/Color • Hardware • TM2 camera • 25mm lens • 70mm ring light • Software • Arc Tool to verify guide presence • Intensity tool to determine if guide is colored or not

  13. Communication

  14. Heartbeat

  15. Heartbeat

  16. Heartbeat

  17. Heartbeat

  18. Automotive Chain Inspection • We quoted a VA40E-03-C53-0 with all necessary lighting & lenses. • The local Cognex/DVT distributor was also given an opportunity to quote against us. • The local Cognex/DVT distributor told the customer that they could not compete against us on a three camera system • We won the job! • It was determined that the customer also needed a single camera system located downstream of the VA40E that they purchased. • The customer purchased a VA15 to do the job without looking at anyone else.

  19. Single Camera Inspection • After chain is assembled, the chain is placed under tension and driven with two sprockets. • The chain is inspected to be sure that all of the components have been assembled onto the chain.

  20. Single Camera Inspection • Hardware • TM2 camera • 16mm lens • 50mmx50mm backlight • Software • Count tool • Reject if we do not have the right number of light areas in either one of the ROIs

  21. Any Questions?

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