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  1. #1
    Join Date
    Sep 2011
    Location
    Emerald Central Qld
    Posts
    349

    Default 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

  2. #2
    Join Date
    Jan 2011
    Location
    Far West Wimmera
    Age
    63
    Posts
    4,049

    Default

    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

  3. #3
    Join Date
    Sep 2011
    Location
    Emerald Central Qld
    Posts
    349

  4. #4
    Join Date
    Sep 2011
    Location
    Emerald Central Qld
    Posts
    349

    Default

    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

  5. #5
    Join Date
    Jan 2011
    Location
    Far West Wimmera
    Age
    63
    Posts
    4,049

    Default

    Quote Originally Posted by Mike4 View Post
    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
    Re the photo size. The way you have posted them, they show as thumbnails (for me anyway). This is fine as people can choose to look at the full pictures if they want, but don't have to otherwise.

    Dean

  6. #6
    Join Date
    Aug 2008
    Location
    Oatley NSW
    Age
    69
    Posts
    257

    Default

    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.

  7. #7
    Join Date
    Sep 2011
    Location
    Emerald Central Qld
    Posts
    349

    Default

    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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