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Jig for plastic parts — Parallax Forums

Jig for plastic parts

nevizammnevizamm Posts: 11
edited 2014-05-30 12:19 in General Discussion
Hi Guys,

Basically what I am trying to do is come up with a solution to design a jig for different plastic parts for automation purposes. These parts are toy helmets, all of which have different shapes and sizes,but have a common inner diameter where the head of the toy will be held. The main reason a fixture is needed is to measure the inner diameter of the helmet. Constructing a fixture for each of the 20 parts is not feasible and therefore I was thinking of construct a jig similar to a collet which can hold different parts. The only problem being that the orientation of the inner diameter of the helmet has to be perfectly horizontally so that a vision camera can take a reading.

Any help with this problem is truly appreciated.

Regards,

Neville.

Comments

  • GordonMcCombGordonMcComb Posts: 3,366
    edited 2014-05-30 09:45
    I'm not sure the Parallax forums are the ideal place for a purely mechanical problem, but without knowing the particulars of what's going on have you considered a strong suction? That would hold the helmet in place for you to use your measuring sensor. The cup can be specially molded, and the suction draw can be such that the piece is rigidly held in place.
  • nevizammnevizamm Posts: 11
    edited 2014-05-30 09:54
    This might be a good idea. The only problem regards the molding of the suction cup as this should be universal one to cater for all the differently shaped helmets. These should be held them all in one specific orientation such that the vision camera can take a proper shot of the inner diameter of the helmet.
  • PublisonPublison Posts: 12,366
    edited 2014-05-30 11:10
    As Gordon said, this is not an appropriate forum for that type of question.

    In addition, it's bordering on a duplicate, (cross) post from here:

    http://forums.parallax.com/showthread.php/155863-Help-needed-for-choosing-appropriate-sensor?p=1270759#post1270759

    We like to keep the forums to Parallax products and projects using them. If you have a question on using a Parallax product in this project, please ask.
  • idbruceidbruce Posts: 6,197
    edited 2014-05-30 12:19
    Neville

    Providing the helmets come off line with the same orientation and the inner diameter is facing downward, I think Gordons suggestion would work quite well. In fact, that was my first thought before reading his post.

    Take a good look at this website to get some valuable ideas: http://www.anver.com/
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