Re: [CAD_CAM_EDM_DRO] Punch Press, WAS surplus pneumatics

Iain,
just want to add that yours or anybody else's suggestions and remarks in
this
group will be greatly appreciated, since for me this is a learning
opportunity.
Best regards, Alex

----- Original Message -----
From: alex <telecomt@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Tuesday, May 06, 2003 5:43 PM
Subject: Re: [CAD_CAM_EDM_DRO] Punch Press, WAS surplus pneumatics


> Hi, Iain!
> This was my original question also.
> Jon Elson pointed out that G-codes generated for a mill or drill can be
> modified
> for punching application. According to Jon this is doable and I'll have to
> rely
> on his help and others for resolving this issue.
> I'm planning to do it with EMC which has good G-code support and also
> lots of talent in the group.
> Meanwhile I'm sketching mechanical parts so I could produce working
drawings
> sometime soon.
> The punching speed will entirely depend on the power of the compressor,
> probably
> it won't be high - may be 2 strokes per seconds at most with force of 1
ton.
> This is going to be a tabletop unit, since this is the only space I got
> around here,
> but I hope it will provide good experience for interfacing and such.
> I will place Unipunches (Unittools) on a rotary table and index with the
> stepper,
> as was advised by Jon also.
> Interestingly enough, it doesn't seem to be very difficult project, just
> putting
> many different parts together.
> Best regards, Alex
>
>
>
> ----- Original Message -----
> From: <hllrsr@...>
> To: <CAD_CAM_EDM_DRO@yahoogroups.com>
> Sent: Tuesday, May 06, 2003 5:50 PM
> Subject: Re: [CAD_CAM_EDM_DRO] Punch Press, WAS surplus pneumatics
>
>
> > Alex,
> > My former employer had several of the Amada NC high speed punch presses,
> > and they all had a flywheel and air clutch to power the punch.
> > Picture a horizontal tool changer, with 12 spring loaded tools and as a
> > tool was called up, it was rotated under the plunger.
> > The plunger is driven like the pistons on a steam train (or a drop
> > hammer for forging) and these beasts could hit 4 strokes/second, with a
> > max force of 50 ton.
> >
> > How would you control (or program) this little beast?
> >
> > I could see using something like TurboCNC to switch a relay or air
> > valve on and off (to engage/disengage the clutch) instead of using the Z
> > axis, with the other programming commands as per normal. Though you
> > would probably want to program a slight pause (2 or 3 strokes?) before
> > starting a G1 move.
> >
> > HTH
> >
> > Iain
> >
> >
> >
> >
> > alex wrote:
> > >
> > > OK, I repent!
> > > Last time I was involved with air was 1984. We built a fixture at
> Dunbell
> > > Industries (went under couple of years ago) and it was OK then...
> > > Looks like leverage is an answer now.
> > > Regards, Alex
> > > ----- Original Message -----
> >
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> OFF Topic POSTS: General Machining
> If you wish to post on unlimited OT subjects goto:
aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if
you have trouble.
> http://www.metalworking.com/news_servers.html
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> http://groups.yahoo.com/group/jobshophomeshop I consider this to be a
sister site to the CCED group, as many of the same members are there, for OT
subjects, that are not allowed on the CCED list.
>
> NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM.
DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
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> List Mom
> List Owner
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