Case 7

Hole Gauging with Vision

The challenge was to gauge the diameters of critical holes (orifices) in cylindrical parts as it was rotated. The tolerances were as low as 0.0002".

The solution was a system utilizing a vision inspection system triggered by a micro PLC. The micro PLC also operated the motor rotating the part and verified that the proper number of good holes were detected in each part.  In tight tolerance parts a special inside-out illumination system was devised that provided a lighted plates tip inside the cylindrical part. This provide the consistent lighting required to reach such tight tolerances.


(Click on the picture to see more about this project.)

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