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Anchor Measurements

Supplier: Vision Systems Engineering
10 April, 2012

This example shows a solution to a measurement problem - the part has numerous areas which must each be within certain linear tolerances.

Staff were spending around a minute measuring various areas of each part with a caliper, which was slowing production throughput. Subjective judgement of the parts by looking at them was not an option due to safety implications.

The images show the tools being applied by the vision system, being built up for clarity. The blue rectangles show where a caliper tool has been applied, and the green lines and numbers show where edges were found.

Tolerances were applied to each set of edges, such that a small defect would cause the part to be rejected. The system was programmed to cope with parts of any orientation and position within the image.