Announcement

Collapse
No announcement yet.

Cross Braces for I-Beam Gantry above Lathe

Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts

  • Cross Braces for I-Beam Gantry above Lathe

    One friend gave me the top I-beam from an A-frame gantry crane, which I decided to mount on the ceiling above my Lathe in a direction parallel to the axis of rotation of the lathe. My plan is to mount a chain fall on the I-beam to lift heavy chucks and my turret and conventional tail stock for the lathe. Another friend gave me some 2-1/2" x 4" rectangular tubing left over from his jet ski lift project. I cut some 1" plate into 2-1/2" square pieces and turned a 1-5/8" dia boss x 9/16" deep on one side of the plate. My idea is to have the boss stick thru the 1/2" drywall by 1/16", with drywall resting on the square part of the plate. So after the drywall is installed and before the I-beam is mounted you will see four 1-5/8" dia bosses sticking out of the drywall by 1/16" on each end of the I-beam.

    The cross braces are constructed by:
    • Setting up the Lincoln SP-250 welder for short circuit MIG to weld the 3/16" plates to each end of a 2-1/2" x 4" rectangular tube
    • Temporarily installing the cross brace assembly between the joists using two nails on each side of the cross beam
    • Temporarily bolting the pucks to the I-beam and raise the I-beam assembly into position with the manual fork lift.
    • Setting up the Lincoln 210 MP welder for dual shield flux core to tack weld the pucks to the bottom of the tubing, using a horizontal and an overhead weld. I used dual shield flux core because I was concerned with cold lap if I used short circuit MIG to weld the 7/16" thick 2-1/2" square plate with the 1-5/8" dia round boss to the 3/16" thick rectangular tube.
    • Removing the cross brace and fully welding the pucks to the rectangular tube.
    • Re-installing the cross brace.

    The I-beam came with a plate welded to the bottom flange on each end. The plate was warped most likely from when the weld shrunk as it cooled, so I set it up on my arbor press to straighten it out.

    1. Isometric asm
    2. Exploded asm
    3. Exploded cross beam
    4. Drilling plates
    5. Turning pucks
    Click image for larger version

Name:	1. Isometric asm.JPG
Views:	1
Size:	30.3 KB
ID:	590081
    Click image for larger version

Name:	2. Exploded asm.jpg
Views:	1
Size:	50.3 KB
ID:	590082
    Click image for larger version

Name:	3. Exploded cross beam.jpg
Views:	1
Size:	31.1 KB
ID:	590083

    Click image for larger version

Name:	4. Drilling plates (2).JPG
Views:	1
Size:	81.9 KB
ID:	590084
    Click image for larger version

Name:	5. Turning pucks.JPG
Views:	1
Size:	89.5 KB
ID:	590085
    Attached Files
    Last edited by Don52; 05-22-2018, 07:03 AM.
    Miller Thunderbolt
    Smith Oxyacetylene Torch
    Miller Dynasty 200DX
    Lincoln SP-250 MIG Welder
    Lincoln LE 31 MP
    Lincoln 210 MP
    Clausing/Coldchester 15" Lathe
    16" DuAll Saw
    15" Drill Press
    7" x 9" Swivel Head Horizontal Band Saw
    20 Ton Arbor Press
    Bridgeport

  • #2
    6. One puck turned
    7. Parts machined
    8. Straightening plate on I-beam-1
    9. Straightening plate on I-beam-2
    10. Straightening plate on I-beam-3

    Click image for larger version

Name:	6. One puck turned.JPG
Views:	1
Size:	153.1 KB
ID:	590041
    Click image for larger version

Name:	7. Parts machined.JPG
Views:	1
Size:	130.0 KB
ID:	590042
    Click image for larger version

Name:	9. Straightening plate on I-beam-2.jpg
Views:	1
Size:	105.1 KB
ID:	590044
    Click image for larger version

Name:	10. Straightening plate on I-beam-3.JPG
Views:	1
Size:	82.6 KB
ID:	590045
    Attached Files
    Miller Thunderbolt
    Smith Oxyacetylene Torch
    Miller Dynasty 200DX
    Lincoln SP-250 MIG Welder
    Lincoln LE 31 MP
    Lincoln 210 MP
    Clausing/Coldchester 15" Lathe
    16" DuAll Saw
    15" Drill Press
    7" x 9" Swivel Head Horizontal Band Saw
    20 Ton Arbor Press
    Bridgeport

    Comment


    • #3
      11. Short circuit welding of end plates
      12. End plate fillet weld
      13. Outside corner weld
      14 Adding one inch (because I measured wrong.)
      15. Dual shield welding of pucks

      Click image for larger version

Name:	11. Short circuit welding of end plates.JPG
Views:	2
Size:	115.5 KB
ID:	590054
      Click image for larger version

Name:	12. End plate fillet weld.JPG
Views:	2
Size:	102.0 KB
ID:	590055
      Click image for larger version

Name:	13. Outside corner weld.JPG
Views:	2
Size:	86.8 KB
ID:	590056
      Click image for larger version

Name:	14 Adding one inch.JPG
Views:	3
Size:	103.7 KB
ID:	590057
      Click image for larger version

Name:	15. Dual shield welding of pucks.JPG
Views:	2
Size:	102.5 KB
ID:	590058
      Miller Thunderbolt
      Smith Oxyacetylene Torch
      Miller Dynasty 200DX
      Lincoln SP-250 MIG Welder
      Lincoln LE 31 MP
      Lincoln 210 MP
      Clausing/Coldchester 15" Lathe
      16" DuAll Saw
      15" Drill Press
      7" x 9" Swivel Head Horizontal Band Saw
      20 Ton Arbor Press
      Bridgeport

      Comment


      • #4


        16. Puck fillet weld
        17. Cross brace installed
        18. I-beam hung on brace from bottom
        19. I-beam hung from top
        20. bolted and nailed
        Click image for larger version

Name:	16. Puck fillet weld.jpg
Views:	2
Size:	82.0 KB
ID:	590066
        Click image for larger version

Name:	17. Cross brace installed.jpg
Views:	2
Size:	91.9 KB
ID:	590067

        Click image for larger version

Name:	18. I-beam hung on brace from bottom.jpg
Views:	2
Size:	98.1 KB
ID:	590068

        Click image for larger version

Name:	19. I-beam hung from top.JPG
Views:	2
Size:	97.2 KB
ID:	590069
        Click image for larger version

Name:	20. bolted and nailed.JPG
Views:	2
Size:	62.4 KB
ID:	590070
        Miller Thunderbolt
        Smith Oxyacetylene Torch
        Miller Dynasty 200DX
        Lincoln SP-250 MIG Welder
        Lincoln LE 31 MP
        Lincoln 210 MP
        Clausing/Coldchester 15" Lathe
        16" DuAll Saw
        15" Drill Press
        7" x 9" Swivel Head Horizontal Band Saw
        20 Ton Arbor Press
        Bridgeport

        Comment


        • #5
          21. beam installed
          22. Chain fall
          23. Clausing-Colchester 15 inch Lathe
          24. Turret Tail Stock
          Click image for larger version

Name:	21. beam installed.JPG
Views:	1
Size:	100.5 KB
ID:	590072
          Click image for larger version

Name:	22. Chain fall.jpg
Views:	1
Size:	52.9 KB
ID:	590073
          Click image for larger version

Name:	23. Clausing-Colchester 15 inch  Lathe.jpg
Views:	1
Size:	82.5 KB
ID:	590074
          Click image for larger version

Name:	24. Turret Tail Stock.jpg
Views:	1
Size:	62.6 KB
ID:	590075

          Miller Thunderbolt
          Smith Oxyacetylene Torch
          Miller Dynasty 200DX
          Lincoln SP-250 MIG Welder
          Lincoln LE 31 MP
          Lincoln 210 MP
          Clausing/Coldchester 15" Lathe
          16" DuAll Saw
          15" Drill Press
          7" x 9" Swivel Head Horizontal Band Saw
          20 Ton Arbor Press
          Bridgeport

          Comment


          • #6
            Very nice work. I take my hat off to you for taking the time to do quality stuff for yourself. One thing I am guilty of is doing very nice stuff for customers and then when I do something for myself I rush through it to get back to the paying work or just never do it at all as I'm busy doing work for others.
            MM250
            Trailblazer 250g
            22a feeder
            Lincoln ac/dc 225
            Victor O/A
            MM200 black face
            Whitney 30 ton hydraulic punch
            Lown 1/8x 36" power roller
            Arco roto-phase model M
            Vectrax 7x12 band saw
            Miller spectrum 875
            30a spoolgun w/wc-24
            Syncrowave 250
            RCCS-14

            Comment


            • #7
              That is real nice work, your good, I sure love the lathe, going to have to do something like that for myself, fixing to get a South Bend with 16" chuck, all the tooling, that fellow had bought everything you could get for it, even a 12" rotary table, I know I can lift all of that anymore ?

              Comment


              • #8
                I tell you what Joe, and this is a good deal, you can get that lathe and set it up in my shop. That way I can do all that lifting for you. Be happy to help. It's the least I can do.

                Comment

                Working...
                X