Re: [CAD_CAM_EDM_DRO] power chucks, bar feeders etc

Are you going to be doing any drawings for this
project? If yes, I'd be interested in a copy of them.


Doug Pfaff

--- Graham Stabler <eexgs@...> wrote:

>
> I'm just wondering if anyone knows much about the
> operation of the
> typical power chuck?
>
> I'm mentally designing a small swiss-style lathe and
> I can't work out
> how to automate the rear chuck, it needs to be able
> to grip and
> release bar stock at will even at low speeds (i.e.
> no centrifugal chuck).
>
> I've seen wedge based chucks mentioned but you only
> seem to get to see
> the outside of commerical ones.
>
> My only real idea has been a spring loaded collet
> chuck with springs
> to keep the chuck closed on the bar stock and an
> external pneumatic
> mechanism to release it when required.
>
> Only minimal accuracy is required in terms of
> centering so I feel
> there must be some neat and dirty solutions out
> there somewhere.
>
> Graham
>
>
>
>
>
>
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