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Thread: Tool Holder for HBM
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19th Jan 2016, 10:21 AM #1
Tool Holder for HBM
A while ago I purchased a Kearns Horizontal Boring Mill , this machine only came with a bare facing chuck , ie NO tooling .
I have made a toolholder to mount onto the facing chuck , now I am completing the adaptor to be able to use Cat30, NMTB30 ,ISO30 tool holders as I have a few of them .
I have also purchased some used (and abused) morse taper adaptors from various sellers.
The machine is working ok apart from the DRO deciding to go to sleep and not restart, (power surge???).
Now that It is operational ,I have completed a few small jobs and am very satisfied with it .
Now is the time to start making some items to make it easier to use , like electrical stops which will allow me to run other equipment without worrying about the possible loud crunchy noise when a tool hits the bottom of a part or worse the table hits either end of its travel and tries to keep on moving .
I have seen on some of the Utube sites of machine rebuilds , a type of clutch which releases if a part binds or becomes stuck on a machine .
My question to the knowledge base here is are those clutches difficult to make?
Michael
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19th Jan 2016, 03:40 PM #2
Michael, if you look at post #8 in this thread,
//metalworkforums.com/f65/t1718...er-feed-clutch
you will see a picture of a safety release clutch, supplied by Ueee. This is the type I will be using for my mill power feed.
Dean
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19th Jan 2016, 06:54 PM #3
As some members have asked for pics, I have some 20150913_162937.jpg20160119_173407.jpg20160119_173407(0).jpg20160119_173426.jpg20160119_173446(0).jpg20160119_173526.jpg20160119_173504.jpg20160119_173458.jpg
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19th Jan 2016, 06:58 PM #4
That is the first time that I have managed to add pictures here , yes some are big , hey ,we all have to start somewhere.
Basically take a piece of round bar , put it in the lathe make a heap of chips , bore the middle out , carefully , amd machine outer size to fit toolholder.
I still have to finish the drive dogs and put some more setscrews in the tool holder .
The tool holder is my prototype but it works .
Michael
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19th Jan 2016, 10:25 PM #5
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20th Jan 2016, 03:51 AM #6Home Hobbist
- Join Date
- Aug 2008
- Location
- Oatley NSW
- Age
- 69
- Posts
- 257
Hi Mike,
Nice HBM you have, what size clutch are you looking at e.g. bore size as I have some 3/4" ones given to me, they are Dynamic Brand and 90VDC control.
Keith_W.
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20th Jan 2016, 10:17 AM #7
Keith_W,
I will have to measure the shaft sizes to be sure but from memory 3/4 would be close.
I will be away until Saturday (at the moment ), trying to earn a dollar.
Michael
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