TrueLight Case Study: 3D Vision-Guided Robotic Fastening and Torquing

REQUIREMENTS

Our customer required rivnuts to be robotically fastened into holes on parts that were hollow rails. The incoming rails were all bent to some degree (the parts were either "smiling" or "frowning"), which caused variability in hole position between like parts.

To make things a little more challenging, there were 5 rail variants in total, each with multiple holes requiring rivnuts.

SOLUTION

TrueLight utilized FANUC 3D vision on the rivnut robot(s) to integrate a robust process that allowed for the variability in hole position to exist and accommodated for it within the required cycle time for the system.

RESULTS        

Repeatable location of critical features (holes) to achieve the required cycle time of 29 or 34 seconds, depending on part variant. The cost of 3D vision hardware was offset by the ability to utilize a more cost-effective part fixturing design as a result of the vision guidance.

Watch the full video for this innovative solution on TrueLight's YouTube channel: 3D Vision Guided Robotic Fastening and Torquing