I-beam connector?

  1. ned

    ned Member

    Messages:
    745
    kerry, Ireland
    Hi all,

    I want to clamp some I beams together like below, wondering what do people use and where would I buy such item's ....or how do I DIY it... wast thinking to fashion something with two plates and some threaded bar.

    any and all suggestions appreciated


    upload_2019-5-14_23-13-6.png

    These are the beams, you can see I've temporarily used this clamp, but I need more clamping force

    upload_2019-5-14_23-21-49.png
     
  2. Tigman

    Tigman Forum Supporter

    Messages:
    2,748
    Location:
    Watford UK
    Orbital Fasteners sell that stuff , I forget the name of it ! why not just drill the beams and bolt them together
     
  3. Tigman

    Tigman Forum Supporter

    Messages:
    2,748
    Location:
    Watford UK
    Lindaptor ! thats the stuff
     
    stuvy, pressbrake1, Joe Irvin and 2 others like this.
  4. gordon stephenson

    gordon stephenson Forum Supporter

    Messages:
    6,339
    Location:
    Skelton in Cleveland U.K.
    As above. Or why not drill through the flanges and bolt direct?
     
    Beeezer likes this.
  5. ned

    ned Member

    Messages:
    745
    kerry, Ireland
    It's going to be a 10' x 6' CNC table.

    I'm using the wight of the upper beams to align the lower beams, pull the lower beams onto the same plane.

    After I have the table rectangle welded together I will remove the upper beams.

    Sitting on the long axis of the cnc table like so:


    [​IMG]


    I don't want to drill holes and bolt them, because I'll spoil the upper surface that the linear rails will sit on.

    Tigman will check out that product you mentioned, thanks
     
  6. gaz1

    gaz1 Member

    Messages:
    7,824
    Location:
    westyorkshire
    arnt those clamps similar to milling machine clamps ?
     
  7. ned

    ned Member

    Messages:
    745
    kerry, Ireland
  8. Hitch

    Hitch Moderator Staff Member

    Messages:
    11,874
    Somerset
    Worth buying yourself a couple of better clamps instead?
     
  9. awemawson Forum Supporter

    It's a good excuse to buy more Carver welding clamps
     
    Rig Pig and Maker like this.
  10. ned

    ned Member

    Messages:
    745
    kerry, Ireland
    @awemawson my dad has some of them, they are tasty yes, I never realised they were specifically for welding, very good.
     
  11. 8ob

    8ob Forum Supporter

    Messages:
    3,818
    Location:
    moscow on thames
    Am I the only one thinking two heavy square plates with holes in each corner top and bottom with some long studding to make a clamp:dontknow:

    Bob
     
  12. hotponyshoes Member

    Messages:
    992
    Location:
    Somerset. Uk
    I don't expect the upper surface for the rails is so perfect that some de-burred holes are going to spoil it that much?

    Would 4/8 small G clamps not sit inside the channel and do the job?
    Otherwise some big nuts/bolts with a stack of washers on either end and another stack of washers the same thickness as the beam wedged in the sides to keep the bolt washers square? 15579134628212368733499812079267.jpg
     
  13. ned

    ned Member

    Messages:
    745
    kerry, Ireland
    @8ob yep I did thank of that and its still a contender

    @hotponyshoes love both of your ideas.
     
  14. hotponyshoes Member

    Messages:
    992
    Location:
    Somerset. Uk
    Proper job sell G clamps for about £1 each.
    If you were doing this all the time then the proper clamps would be the best bet but for a 1-off job I would either use what I had or, if I was buying something, buy something I can use for something else afterwards
     
    eLuSiVeMiTe likes this.
  15. Justme

    Justme Member

    Messages:
    2,737
    Location:
    Pwllheli Wales

    Sort of but I was thinking two smaller beam sections (angle, box ect) on a diagonal with two long bolts.
     
    8ob likes this.
  16. RichardM Member

    How about that sort of thing? IMG_4587.JPG
     
    gaz1 likes this.
  17. Fazerruss

    Fazerruss Member

    Messages:
    2,283
    West Yorkshire
    Here's some brackets I made to support a mezzanine in my workshop.
    10*40 flat with some 8mm Sq welded in as a spacer.

    20190515_204632.jpg 20190515_204555.jpg
     
  18. 8ob

    8ob Forum Supporter

    Messages:
    3,818
    Location:
    moscow on thames
    On that theme Richie perhaps one piece of angle and make a big Ubolt from studding.

    bob
     
    Justme likes this.
  19. ned

    ned Member

    Messages:
    745
    kerry, Ireland
    Cheers All )

    @RicharmM what are those gadgets? They look ideal. I went ahead and made a basic plate clamp. I had the flat bar lying there (on the floor in the background) so it was easy and the threaded bar will end up costing me..... 36 euros, so not too bad.

    The idea is that the table sides are clamped so tight as to resist the forces exerted on it when I'm welding. Then when I'm all done undo the clamps and their job is over. I'm going to weld the table super super slowly, over the course of a week or more, so as to avoid warping.


    upload_2019-5-22_8-24-21.png

    this the table

    [​IMG]

    this the table now, with the beams laid on top

    [​IMG]
     
  20. Screwdriver

    Screwdriver Member

    Messages:
    4,856
    UK London
    I am not understanding why this inverted welding table is better than setting up a regular table with the product on top.
     
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