REGO-FIX HK clamping nut?

J

jouesdeveaux

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I'm a newbie to machining but after about a year of fooling around I now can confidently place an ER 32 collet into the clamping nut and screw it into the collet chuck on my 7X12. And I've made some nice small diameter things of 304 SS.

BUT: all of a sudden I got a severe attack of tool envy icon_redface.gif and bought a Swiss made REGO-FIX clamping nut really cheap at a garage sale.
PROBLEM: unlike mt humble Chinese made collet nut, the REGO has no eccentric ridge that allows me to wiggle the collet into the clamp before setting it into the collet chuck.
HOW DOES THE REGO-FIX CLAMP WORK?
In the first pic below, you can see the familiar eccentric ring in my usual clamping nut. No problem.
In the second pic, the Rego-fix, there is no such ring. The only way I figure to insert the collet is to insert the collet into the chuck first and then tighten down the nut over it. That is a really (really, really!) tight fit, so I haven't done it. I don't want to apply full force cause I'm afraid that this is not the right way. Then again, the REGO-FIX may work in an entirely different way. The models currently available are "Hi-Q", but mine is an "HK".

ANY SUGGESTIONS?

IMG_0004.JPG


IMG_0005.JPG
 
From the interior nut machining--it is clear that the new nut is designed just to clamp the collet and not to hold the collet as it is being inserted or removed from the collet chuck.

The front taper will push and align the collet on the axis of the chuck.
The only issue I see is that the collet may become bound in the chuck itself whereas the std nut would <help> pull the collet off the back taper as it is unscrewed.

I, myself, would give it a try. IF it works great, if not, you probably did not spend too much on it anyway.
 
Your new nut is apparently not an ER nut. HK collets are an entirely different collet system but I don't know much about them. All Rego-fix er nuts have the eccentric that allow you to snap in an er collet.
 
Interesting.
Based on this video, some collet nuts are designed without the eccentric ring and instead they use an E-clip to hold the nut,the two Rego-Fix collet nuts that I have both have the eccentric ring:
 
Does yours have the dimple? Does it just hold by friction? Or is a highspeed nut.
 
mikey said:
Your new nut is apparently not an ER nut. HK collets are an entirely different collet system but I don't know much about them. All Rego-fix er nuts have the eccentric that allow you to snap in an er collet.
Click to expand...

Many thanks to Mitch and to Mike.
Mike: Clearly printed on the front of the nut: "HK/ ER 32"
 
Ken from ontario said:
Interesting.
Based on this video, some collet nuts are designed without the eccentric ring and instead they use an E-clip to hold the nut,the two Rego-Fix collet nuts that I have both have the eccentric ring:
Click to expand...

Many thanks for this video. It gets me closer to a solution, but no brass ring just yet.
My REGO is clearly labeled "HK/ER 32". It is just like the one he shows in the first series of nuts. It has a "friction bearing", but UNLIKE THE ONE HE SHOWS, MY ER 32 COLLETS DON'T "SNAP IN". They are a tad too large. I can't get the collet to "snap in" by hand. I would have to tighten the nut down over the collet chuck, forcing the head of the collet to contract enough to snap past the ridge of the friction bearing. If I did that (without breaking something), I've no idea how I'd retract the collet from the clamping nut.
 
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