Gage R&R on a Programmed Vision System

I

inferno10

#1
We have a vision system with an attached touch-probe kit that we want to use for automated inspection via a controlled routine. To do this, we developed a fixture and programmed a routine to automatically inspect up to 18 parts placed into this fixture. We need to qualify our program for use with inspection of this part, so I was advised to run a gage r&r on the program. We have 2 operators, myself included, that would potentially use the program for routine inspection.

I was thinking of setting up an 18x2x2 gage r&r worksheet, then completely filling the fixture with parts, following the operator and parts order on the worksheet, and running the program.

Is a gage r&r an appropriate method to use for this method qualification, or is there a better option?

Thanks for any advice you can offer!

- Jason
 
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#2
Re: Gage R&R on a programmed vision system?

There are several things you want to capture, if you can:
-Different operators loading the fixture.
-Different parts in each location of the fixture.
-Repeated parts in a particular nest in the fixture.

Also, remember the trick for setting the optimum light for a vision system (to get best repeatability): Repeat a measurement several times. Add some light intensity, and repeat several times again. If the variation within the measurement becomes less add more intensity until it drops off. If it gets worse, reduce the intensity until it becomes more repeatable. Generally, vision systems repeat better at less light than you would think from using optical comparators!
 
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