How to Hold Pipe from Inside? 1

[spectreeng]

Is there a device that can grab a 3" aluminum pipe from the inside? It would be like a chuck that expands to hold it from the inside. The purpose of this is so that we can rotate it and laser etch the outside. Thanks.

 

[eromlignod]

Can you just use a small lathe chuck? Maybe a McMaster-Carr #33135A22.

http://www.mcmaster.com

Don
Kansas City

 

[benta]

Don't understand the question. Any normal lathe 3-jaw chuck with stepped jaws will do this. You can put it on a rotary table if you like.

Benta.

 

[ajack1]

Would an expanding mandrel do what you require?

 

[MikeHalloran]

Something built like an internal pipe wrench will work nicely, and much faster than a chuck.



Mike Halloran
Pembroke Pines, FL, USA

 

[MadMango]

I would try a Google search on "pneumatic expanding core collet".

To get you started:

http://www.doubleeusa.com/core_shafts.htm

http://www.convertech.com/shaft-adapters.php

http://www.hardingeus.com/index.asp?pageID=63&prodID=79

"Art without engineering is dreaming; Engineering without art is calculating."

Have you read faq731-376 to make the best use of Eng-Tips Forums?

 

[EdDanzer]

Check this link

http://www.danzcoinc.com/html/bore_chucking_live_center.html

Ed Danzer

http://www.danzcoinc.com

http://www.dehyds.com

 

[spectreeng]

Thank you for the all the suggestions. I've learned that the laser etchers are using a delicate rotating table so there are weight limitations to the device. I think we will go with a mini lathe chuck with three stepped jaws like some of you mentioned. Cheap and simple. Thanks again.