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motor speed and power for thread check

motor speed and power for thread check

motor speed and power for thread check

(OP)
i'm looking to implement a new way to check tapped holes in our automotive parts produced off the machining lines.  i have a good idea about how to go about this, but am not sure on what size motor to use.  this motor will be powering 8 spindles that need to all spin at the same speed throughout a tapped hole.  Two different speeds will need to be used on each spindle:  one for initial thread(to prevent cross-threading) and the other to travel the rest of the way through the hole.  I've calculated my approximate speeds to be 30 and 125 rpm.  A frequency drive and PLC will control the speeds and timing.  Is there a three phase motor that will work for this application?

RE: motor speed and power for thread check

are you talking about multiple thread gauges for thread checking or just to verify the hole is threaded?

RE: motor speed and power for thread check

(OP)
The probe will work like a bolt, rotating through the hole.  it will check to see if the threading is there, is undersized or not to specific depth, and if there is a damaged thread.

RE: motor speed and power for thread check

An option, in the event that you may want to reconsider how you're approaching this problem.  I keep seeing an advertisement in some trade rag for a "non-contact thread probe".  The picture shows something like a prox switch stuck down a tapped hole, supposedly can count & verify threads.  Sorry, I don't have the name.  No idea how it works.  No idea IF it works.  But if it does work, it may be a simpler solution.

TygerDawg

RE: motor speed and power for thread check

I have reservations as to the proposed method of inspection, too many thing have to be aligned, synchronized, and measured.  

Take a look at this device based on Eddy Current that works quite well and may do all you need.

http://www.ndttechinc.com/qweb/site/index.htm

RE: motor speed and power for thread check

More options in thread404-21265...

RE: motor speed and power for thread check

(OP)
I appreciate the responses.  I have heard of eddy current before but did not realize that it could detect under or oversized tapped holes.  Thanks for the help.

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