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rebuilding tapping head

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#1 dmcnally

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Posted 06 December 2018 - 07:28 PM

I have a Procunier tapping head that needed some attention (i.e. maintenance) and I thought this would be a good opportunity to show the forum what's inside a Procunier tapping head.

 

This is my tapping head.  It's a Procunier Model 1E and you can use it to tap thread up to 1/4" in aluminum and 3/16" in steel.  There's a 10-24 tap in it.

IMG_5312.jpg

 

For those of you that are not familiar with tapping heads, please watch this YouTube video (click image below).

 

tubalcain.jpg

 

This picture shows the tapping head and some accessories (wreches, collets, rotation bar).

IMG_5313.jpg

 

The tapping head with the top removed.  The cork is conical and is the clutch.  The clutch is actually a double cone and there's a better picture of it later.

IMG_5317.jpg

 

Looking down the throats of the two main pieces.

IMG_5319.jpg

 

Exploded view of the lower unit.

IMG_5320.jpg

 

continued in the next post.

 

Clear Skies and Happy Holidays,

Dave

 

 


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#2 dmcnally

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Posted 06 December 2018 - 07:28 PM

Here's a closeup of the reverse gear.

IMG_5321.jpg

 

Bearing and botton cone.

IMG_5330.jpg

 

Here's a better view of the dual cone clutch.

IMG_5329.jpg

 

Clutch and botton cone.

IMG_5332.jpg

 

Exploded view of shaft.

IMG_5334.jpg

 

Another view of the two body sections.

IMG_5335.jpg

 

That's it.

 

Clear Skies and Happy Holidays,

Dave

 

 


Edited by dmcnally, 06 December 2018 - 07:35 PM.

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#3 GoFish

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Posted 06 December 2018 - 07:37 PM

I have a Tapmatic head that really needs to be lubed. But I am terrified to take it apart tongue2.gif



#4 dmcnally

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Posted 06 December 2018 - 07:59 PM

I have a Tapmatic head that really needs to be lubed. But I am terrified to take it apart tongue2.gif

I can't speak about Tapmatic products, but the support for Procunier heads is very good.

 

Here's a link to the parts manual for the 1E model.  Other manuals can be downloaded here.

 

You can also order all of the replacement parts at this website.

 

Clear Skies and Happy Holidays,

Dave


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#5 don clement

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Posted 07 December 2018 - 12:02 AM

+1 on Procunier  tapping head. I have tapped 10s of thousands of blind 4-40 holes with my Procunier 1E  tapping head with excellent results on both manual and CNC mills.  A nice thing about using the Procunier on my Tormach CNC mill is that the code is so simple 2 lines:100% downfeed rate, no dwell, and retract at 200% downfeed rate. Also I tap aluminum 4-40 with a Balax form tap at 1200 rpm so fastand and no chips.  With the cushioned double-cone clutch small taps i.e. 0-80 work great. In addition I installed the Pro-Quik quick change tap holders so changing tap sizes is just a snap away. http://rockford-ettc...Pro-QuikTap.pdf I just enter the z height for each tap size in the tool table and quickly swap out tap size during tool change. I made a bracket with anti-rotation rod and TTS quick change tooling so changing the entier Procunier tap head on my Tormach is quick and easy especially with the power drawbar.

 

Don

Attached Thumbnails

  • ProcunierIMG_1205web.jpg
  • tapheadbackviewweb.jpg
  • ProcunierQuickPro.jpg
  • ProcunierSpindleArmUnderVie.jpg
  • procunierIMG_1199web.jpg
  • ProcunierIMG_1200web.jpg

Edited by don clement, 07 December 2018 - 12:28 AM.

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#6 dmcnally

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Posted 07 December 2018 - 08:31 AM

I made a bracket with anti-rotation rod and TTS quick change tooling so changing the entier Procunier tap head on my Tormach is quick and easy especially with the power drawbar.

 

Don

Hi Don,

That bracket is really cool. bow.gif bow.gif   I've been thinking about something like that, but haven't done anything about it... yet.

 

I like the quick change tap holders.  I mostly do 10-24, but the quick change holders would be nice to have.

 

Clear Skies and Happy Holidays,

Dave


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