Results from Probe Qual program

[[Li...]]

We had an issue last week where the new operator in a cell ran an "ALL" probe qualification program and he didn't clean the balls of at least one of the probes.  This specific probe gets used alot in comparison to the other probes in the rack on this Duramax.  So as you could imagine the cylindrical parts that he run, although "in spec" on his CMM because a contaminated probe qualification were all in face oversized for the OD measurements and undersized for the ID measurements.  We had a meeting about this today because we now 96 parts that or out of spec...OD/ID. Tolerance for these diameter are ±.00025" 

I did some investigating on Friday and found that the CMM thought the ball of the stylus was about .0004" bigger than is supposed to be.  These are bronze parts and the residue/dust from the machined parts coated the ruby ball stylus. 

I was asked in a meeting today...

1. Can I make a program that measures the reference sphere, and it reports the diameter of it. Which I could probably do, I'm thinking.

2. Can I somehow report the radius of the probes as it runs the qualification program.  

We want more information to be shown after the qualification program is done. It does show a presentation pdf, but these types of programs don't show anything. 

I attached the reports that get saved. The operators only see the presentation pdf, not the .txt file.

-Anyway to add stylus ball radius and radius or diameter of the reference sphere? 

 

Lincoln 

Probe Calibration06_22_2642862026-6-22.pdf Probe Calibration52026-6-22.txt

[[Iv...]]

I would check out the "Set Limit Values" option inside the Probing System Qualification. The attached screenshot shows the deafult values which are very loose. I think a reduced sigma and potentially radius would've have flagged this error. 

Additionaly, it can also allow a max time between qualifactions.

Since these options are all built in Calypso, it looks a great place to start and might satify your needs. 

[[Ri...]]

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https://portal.zeiss.com/knowledge-base?id=443334

This will help you create a program with report output, so you can verify sizes. 

[[Li...]]

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I did set all the probes at .0001" from the default of .00039" We want to catch the "bad"/"contaminated" qualification and make it fail with a low limit value. We are normally hanging around .00002" to all zeros.....millionths in "S" are normal for our Duramax's 

[[Li...]]

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I looked through this... I like it.   

[[Li...]]

Do you think I could pull in the sphere diameter or radius?

using result element?

[[Sv...]]

Use the result element and select the formula option. You can then enter the values shown in the image to obtain the results. I output sigma and the radius. It involves a huge amount of work at the start, but it pays off in the end.

 

Good luck!
Greetings from the Black Forest, Germany 😉