Re: [CAD_CAM_EDM_DRO] Auto tool changers

Tool changing on lathes is much simpler than on mills, since the tools don't
spin, they stay in one place relative to the carraige. The means of doing this
is the turret, a turntable on top of the carriage which is indexed for the next
position when a new tool is needed.

Although there are simple toolpost turrets with four positions (ones from
Hardinge show up on eBay from time to time) if you want a lathe with tool
changing capibilites you should probably look at a lathe that was set up as a
turret (or in the UK, capstain) lathe originally.

David M. Munro

"John H." wrote:

> Hello list,
>
> I downloaded two small videos of a Sirrus machining centre. Apart from
> the truely terrifying speed the table moves at I noticed it made some
> serious noise when it changed tools. I suspected it to be an air powered
> tool changer. It may or may not be but why do so many new machines use air
> powered tool changers and spindles? I remember one guy on here who owns a
> ?Haas? machining centre, is it Sven?, who said the noise of the compressor
> almost drove him nuts.
>
> How much are simple cheap and nasty tool changers for lathes? The lathe
> in question is a 5" swing, 1/2hp deal and I'm thinking of three of four
> tools. I've looked but not found any prices on the internet. It's school
> this Monday and I'm hoping the DT technician has some good news for me about
> a certain CNC lathe. It's getting very hard to sit still and be patient now.
>
> John H.
>
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