NPI Measurement Hardware Adive

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  • NPI Measurement Hardware Adive

    Hi all,

    Hope you had a great Christmas and New Year!

    I'm writing as I'm seeking metrology advice for products that will quickly go through our aerospace shop.

    The products are simple, flat, relatively thin composite components. It will be an in-process measurement where only two dimensions need measuring; profile and hole true position.

    If you refer to the very rough drawing I've attached. The component's thickness can simply be measured with a vernier.

    At the moment I'm thinking of a Romer Arm but I'm wondering if there's anything out there where you can simply throw the component onto a surface and automatically be measured.

    Hope I've described what I'm working with well and is understood

    Cheers, Ben

    demo.jpg

  • #2
    Throw the component onto a surface and automatically be measured? lolol I love it when non cmm people say cr@p like that.

    For what you're doing I'd suggest a programmable vision system like an OGP. If you really want to stay with PC DMIS then look into the Optiv

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    • #3
      Originally posted by DAN_M View Post
      Throw the component onto a surface and automatically be measured? lolol I love it when non cmm people say cr@p like that.

      For what you're doing I'd suggest a programmable vision system like an OGP. If you really want to stay with PC DMIS then look into the Optiv
      Funnily enough I am CMM based haha. But they're the orders from management. I was looking into OGP as an option but does it offer anything over a Laser Romer Arm?

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      • #4
        A touch trigger CMM (like a romer) is not always the best tool for the job. I recommended the OGP as well as OPTIV because they're non-contact vision systems. If all you're doing is measuring diameters and profiles and stuff then a vision system should do the trick.

        OGPs are pretty easy to learn & are a lot cheaper but Measuremind or whatever the software is called isn't nearly as powerful as PC DMIS.

        Side note: And please don't take this the wrong way....Anyone who thinks they can throw a part on a table and have the machine do some voodo and measure the part all by itself needs should be careful calling themselves "cmm based". You might incorrectly give someone the impression that you know what you're talking about!

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        • #5
          FIXTURES, these let you "throw a part" on and measure, if you want automatic, then you want a DCC system, like a CMM.

          Make a simple fixture, attach it to the table, align the fixture, make a program that checks the part (and aligns the part). Then, as long as the fixture doesn't move, you 'throw a part' on the fixture, hit EXECUTE.

          Simple fixture can be made from RAYCO items. 3 of the small magnets, 3 'stop' blocks, and let the CMM do it's thing., IF they are not ferrous metals, RAYCO also has vacuum items that can be used instead of magnets.
          sigpic
          Originally posted by AndersI
          I've got one from September 2006 (bug ticket) which has finally been fixed in 2013.

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          • #6
            A mylar drawing will do the trick. But if you need data points/cmm report, a vision system would be the way to go. Scanning the edges with an arm will be difficult, and somewhat time consuming, due to thickness.

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