CAD CAM EDM DRO - Yahoo Group Archive

RE: [CAD_CAM_EDM_DRO] Request for ideas for lathe Z axis ballscrewcovers

Posted by Dan Mauch
on 2003-08-12 07:00:36 UTC
My Dyna 3000 CNC lathe has the coil type leadscrew covers. They work
perfect and do disintegrate.
Dan

-----Original Message-----
From: Jon Elson [mailto:elson@...]
Sent: Monday, August 11, 2003 9:35 PM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: Re: [CAD_CAM_EDM_DRO] Request for ideas for lathe Z axis
ballscrewcovers




Kim Lux wrote:

>Hi people.
>
>We've got a lathe retrofitted with ballscrews, servos, etc. It works
>great (outstanding actually) except that the ballscrew is getting
>contaminated with metal filings, etc. This metal is jamming the
>ballnuts.
>
>The Z axis ballscrew is located where the feedrods and lead screw are
>mounted on a conventional lathe. We've got a roof over the screw, but
>debris is still getting on it. When cutting, we've got debris flying
>everywhere.
>
>I'd appreciate any and all ideas for covering the ballscrew. Don't
>forget that a ballnut runs up and down the screw... The best idea
>we've had thus far is an accordion type tube, kind of like the fork
>covers on a motorcycle.
>
>
There are a number of designs, but many of them would be REAL hard to do
without mold tooling. One thing that I have seen is a wide strip of
spring steel. It is wound into a coil, and diagonal corners of the
original strip are anchored by a rivet to round bushings at each end.
The thing works by pulling the coil into a helix as it is stretched out.
I think
one end
bushing has to be free to rotate around the screw. I'm not sure this
design can handle the extremes of motion of a lathe.

I had some Gortite bellows that came with some ballscrews off an old
machine, but they have disintegrated. The guys at our shop got a quote
on some Gortite bellows, and they are VERY expensive in small quantity.
They really work nicely, though. There may be some other, similar
bellows material, like the motorcycle fork covers, that comes in a roll,
and you cut to length. Certainly worth some searching. I seem to
recall some cars with rack and pinion steering had some pretty long
bellows, too.

Jon


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Discussion Thread

Patrick J 2003-08-10 15:16:27 UTC [CAD_CAM_EDM_DRO] MAX speed of an rotary encoder Jon Elson 2003-08-10 16:34:36 UTC Re: [CAD_CAM_EDM_DRO] MAX speed of an rotary encoder Patrick J 2003-08-10 20:19:48 UTC Re: [CAD_CAM_EDM_DRO] MAX speed of an rotary encoder Tim Goldstein 2003-08-10 21:43:09 UTC RE: [CAD_CAM_EDM_DRO] MAX speed of an rotary encoder Jon Elson 2003-08-10 23:24:42 UTC Re: [CAD_CAM_EDM_DRO] MAX speed of an rotary encoder Patrick J 2003-08-11 04:41:15 UTC Re: [CAD_CAM_EDM_DRO] MAX speed of an rotary encoder Patrick J 2003-08-11 04:43:33 UTC Re: [CAD_CAM_EDM_DRO] MAX speed of an rotary encoder Kim Lux 2003-08-11 08:48:22 UTC Bent Nook ballscrews ????? Harvey White 2003-08-11 09:01:19 UTC Re: [CAD_CAM_EDM_DRO] MAX speed of an rotary encoder Carlos Guillermo 2003-08-11 09:21:36 UTC RE: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Kim Lux 2003-08-11 09:46:16 UTC RE: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Jon Elson 2003-08-11 09:51:08 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Dan Mauch 2003-08-11 10:34:23 UTC RE: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Kim Lux 2003-08-11 10:42:32 UTC RE: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Bill Kichman 2003-08-11 11:08:14 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Carlos Guillermo 2003-08-11 11:08:27 UTC RE: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Kim Lux 2003-08-11 12:10:58 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Kim Lux 2003-08-11 12:17:20 UTC RE: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Carlos Guillermo 2003-08-11 15:52:21 UTC RE: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Kim Lux 2003-08-11 16:21:05 UTC RE: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Kim Lux 2003-08-11 16:26:09 UTC Update on bent Nook ballscrews. Kim Lux 2003-08-11 16:29:19 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Kim Lux 2003-08-11 16:44:50 UTC Request for ideas for lathe Z axis ballscrew covers dougfennell2000 2003-08-11 17:07:54 UTC Re: Request for ideas for lathe Z axis ballscrew covers Bill Kichman 2003-08-11 17:32:36 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Bill Kichman 2003-08-11 17:51:42 UTC Re: [CAD_CAM_EDM_DRO] Request for ideas for lathe Z axis ballscrew covers Jon Elson 2003-08-11 21:17:47 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Jon Elson 2003-08-11 21:27:31 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Jon Elson 2003-08-11 21:37:56 UTC Re: [CAD_CAM_EDM_DRO] Request for ideas for lathe Z axis ballscrew covers Jon Elson 2003-08-11 21:40:44 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Chris Baugher 2003-08-12 00:08:42 UTC Re: [CAD_CAM_EDM_DRO] Request for ideas for lathe Z axis ballscrew covers Les Newell 2003-08-12 00:11:04 UTC Re: [CAD_CAM_EDM_DRO] Request for ideas for lathe Z axis ballscrew covers Kim Lux 2003-08-12 06:44:39 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Dan Mauch 2003-08-12 07:00:36 UTC RE: [CAD_CAM_EDM_DRO] Request for ideas for lathe Z axis ballscrewcovers ballendo 2003-08-12 07:26:57 UTC Does this make sense? was Re: Bent Nook ballscrews ????? ballendo 2003-08-12 07:30:02 UTC Does this make sense? was Re: Bent Nook ballscrews ????? Bill Kichman 2003-08-12 07:59:11 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Kim Lux 2003-08-12 08:00:35 UTC Re: [CAD_CAM_EDM_DRO] Does this make sense? was Re: Bent Nook ballscrews ????? mayfieldtm 2003-08-12 08:08:54 UTC Re: Bent Nook ballscrews ????? Les Newell 2003-08-12 08:13:02 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Kim Lux 2003-08-12 08:14:52 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Kim Lux 2003-08-12 08:17:55 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? ccq@x... 2003-08-12 08:40:22 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Les Newell 2003-08-12 10:38:02 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Jon Elson 2003-08-12 10:42:58 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Carlos Guillermo 2003-08-12 11:53:32 UTC ballscrew preload torque drag, was: Bent Nook ballscrews ????? Kim Lux 2003-08-12 12:29:47 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Kim Lux 2003-08-12 12:34:30 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Les Newell 2003-08-12 14:13:46 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Peter L. Peres 2003-08-12 14:58:08 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? Jon Elson 2003-08-12 22:35:27 UTC Re: [CAD_CAM_EDM_DRO] Bent Nook ballscrews ????? ballendo 2003-08-13 02:17:21 UTC Re: Bent Nook ballscrews ????? ballendo 2003-08-13 03:11:52 UTC Re: ballscrew preload torque drag, was: Bent Nook ballscrews ????? Torsten 2003-08-13 05:49:54 UTC Re: Bent Nook ballscrews ????? Kim Lux 2003-08-13 06:29:26 UTC Re: [CAD_CAM_EDM_DRO] General machine discussion, was Bent Nook ballscrews ????? Mike Gann 2003-08-13 06:41:56 UTC RE: [CAD_CAM_EDM_DRO] General machine discussion, was Bent Nookballscrews ????? Kim Lux 2003-08-13 06:45:20 UTC Re: [CAD_CAM_EDM_DRO] Ballscrew loads. Was Bent Nook ballscrews ????? Kim Lux 2003-08-13 06:48:50 UTC RE: [CAD_CAM_EDM_DRO] General machine discussion, was Bent Nookballscrews ????? Dan Mauch 2003-08-13 08:54:13 UTC RE: [CAD_CAM_EDM_DRO] General machine discussion, was Bent Nookballscrews ?????