Kirk,
I believe this turret will only lock in one of the 8 tool positions
due to the internal mechanism. It probably has a Curvic Coupling to locate
it. The electric turrets in my experience and my situation (I have about 8
of these in my shop) are much more reliable than the hydraulic and pnumatic
models.
Dave
----- Original Message -----
From: "Kirk Wallace" <[EMAIL PROTECTED]>
To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net>
Sent: Friday, March 07, 2008 2:00 PM
Subject: [Emc-users] Powerdex Tool Changers
>I would like to get more information on the tool changer on this lathe.
>
> http://cgi.ebay.com/1982-TOS-Engine-Lathe_W0QQitemZ180221313534
>
> I am thinking a Sherline class changer of this type might be a good
> thing.
>
> I am trying to figure out generally how they work. Does anyone have
> links to this or similar changers?
>
> I can see using a planetary gear and electric motor to rotate the head.
> Then using pins or a notched plate to lock it. One of the details that
> bothers me is, can I use ball bearings as part of the turret locating
> system during machining, or will the tool and table locking forces wear
> divots in the races? The Hardinge turret floats during a tool change,
> then parks on a notched plate, but doing this electrically instead of
> pneumatically would be a challenge. The changer above, I believe doesn't
> float. Plus I wounder if it can be located at intermediate positions or
> only lock in one of eight positions. Thanks for any help.
> --
> Kirk Wallace (California, USA
> http://www.wallacecompany.com/machine_shop/
> Hardinge HNC lathe,
> Bridgeport mill conversion, doing XY now,
> Zubal lathe conversion pending)
>
>
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