Gallery, Projects and General > How do I??

How KITAGAWA lathe power chuck works? Manual mode?

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PekkaNF:
I have a chance to buy a "perfect" size KITAGAWA power chuck, that looks a lot like this:

http://www.ebay.com/itm/NICE-KITAGAWA-B-205-5-3-JAW-POWER-CHUCK-W-A-2-5-MOUNT-/361869134730?hash=item544114cb8a:g:LMAAAOSw2xRYar0Z

I like the size and jaw mount, sometimes the jaws are not even very expensive.

Now the size would be perfect for my manual lathe (and one project lathe) but how does the open/close mechanism work? Pretty sure it has no scroll.

Does it has an strong internal spring to keep chuck jaws closed and then needs and actuated part to push jaws open? Few mm of movement and loads of force?

I have one capstan lathe minus chuck and much of the spindle....is this fairly standard DIY project or does it needs a loads of very special parts that are not possible to make/design by use mere mortals?

Or it is just a daft idea and best to chuck it?

Pekka

awemawson:
The jaw operator is on a ramp and is pushed and pulled open and closed by a (separate) hollow hydraulic cylinder co-axial with the spindle.

If you trawl through my thread on the Traub Lathe you will see the hoops I jumped through to fit an almost identical chuck to it.

It's probably about 2/3rds of the way through this thread:

http://madmodder.net/index.php/topic,8261.msg88581.html#msg88581

awemawson:
Actual fitting starts about here:

http://madmodder.net/index.php/topic,8261.525.html


(Though the acquisition and gloating started a bit earlier  :lol: )

PekkaNF:
Thank you. That answered all my questions. I'll chuck the idea :lol:

Pekka

philf:
Pekka,

Have a look at



and



Not a simple diy solution.

Phil.

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