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Old 01-31-2024, 09:43 PM
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rocketeir rocketeir is offline
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Default I need some ideas

Hey everyone, it’s been a while since I posted on here. My life brought me into a new career. I’m an instructor at American K9 interdiction in Virginia now. I teach mostly veterans how to train dogs to be detection k9s. Explosive, narcotic, bedbugs, contraband and we even trained Covid detection dogs when that was a thing.
Anyway I bought a used working dog trailer to transport student dogs to make things easier on the students but it needs some repairs. One of the most simple repairs has me asking for your ideas. The body is mostly aluminum but custom made and some welds make it impossible to get to some areas without cutting the whole top off. I’m
Trying not to do that mainly because I don’t have a way to lift the fiberglass top off and I feel like there must be a way that I’m overlooking.
I need to replace all the pop rivets that are holding the doors on. Each door has 2 stainless hinges. I replaced the rivets in the door with stainless machine screws and acorn nuts however the part of the hinge that attaches to the door frame needs replaced as well but it’s a blind hole, I can’t get to it without removing the whole body. So I was thinking just put new rivets. Which I tried but the hinge knuckle is so close to the holes that my rivet fun head is too big and it makes the rivets go in crooked and they stay loose. I have tried 3 rivet guns and they all have the same problem. I prefer to use bolts or screws but the back being blind I can’t put a nut on
The back. And the screw idea won’t work because it’s just in aluminum.
I’m attaching some pics.
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  #2  
Old 01-31-2024, 09:46 PM
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Pic 2
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U.S. Marine Veteran A/C mech and basic Rifleman
Everlast AC/DC High Freq Tig/stick machine(newest edition to the family)
Millermatic 185 W/ Spoolmate 185
O/A Victor setup
Dewalt power tools
Craftsman/Snapon hand tools

Last edited by rocketeir; 01-31-2024 at 09:48 PM. Reason: Pic didn’t post
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  #3  
Old 01-31-2024, 10:13 PM
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I would remove the hinge, drill the blind hole out for a nut sert that accepts a screw as close to the diameter of the rivit as possible
here is a video on how to install without a tool, better than me trying to explain it https://www.youtube.com/watch?v=WYvvdwSMNVE
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Old 01-31-2024, 10:14 PM
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how bout using rivet nuts ? set them in the frame.
they come in all sizes

https://www.grainger.com/category/fa...Not+Applicable
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  #5  
Old 01-31-2024, 10:31 PM
slip knot slip knot is offline
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Maybe you need larger rivets. My maintenance guys were riveting a piece of 3/4 in thick teflon sheet down using some 1/4in diameter X 1in rivets. head was like 1/2 in diameter. rivet tool resembled bolt cutters.
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Old 01-31-2024, 11:33 PM
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Like they said above: riv-nuts/nut-serts. Then use 10-32? (or largest that will fit) flat-head machine screws with a little bit of Loctite on them... Some kits come with a tool to install them. Your local ACE hardware might have some in stock... These kits shown were on TEMU.com--search "riv nut".
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Old 01-31-2024, 11:33 PM
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Back to your original problem, the head of the tool is too large to get it perpendicular? Maybe a short extension between the rivet and the tool, you would have to be quick to catch it when the shank breaks. I'm thinking of a bolt that's been drilled thru the center.

On edit and after looking at the pics again, you may have to buy a deeper rivet to get a longer shank, pop out the shorter shanks and replace them with the longer ones.
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  #8  
Old 02-01-2024, 02:07 AM
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The crappy aluminum riv-nuts that I have did not work very well, they loosen up and turn, the surface needs to be flat.
Maybe steel riv-nuts will work if they don't you will be left with a big hole.

Another idea move the holes. (assuming the hinge is weldable).
if a plate will work, weld the hinge on to a plate, or cut out the plate and weld the perimeter of the hinge to the plates cutout.
I'm thinking 1/16" thickness, 304 SS plate but beware SS can be hard to cut and drill, I suggest you test out your skill level with SS before you try welding the hinge to it.

May consider have the SS strip/plate long enough to span to the other hinge. so both hinges are attached to the same strip.
you can add a third hinge.

May also last longer if you grind the diamond plate to the flat surface.

side note: IIRC I believe there is flat head pop rivets that are used for counter sunk holes.
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Old 02-01-2024, 04:01 AM
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Quote:
Originally Posted by arizonian View Post
Back to your original problem, the head of the tool is too large to get it perpendicular? Maybe a short extension between the rivet and the tool, you would have to be quick to catch it when the shank breaks. I'm thinking of a bolt that's been drilled thru the center.

On edit and after looking at the pics again, you may have to buy a deeper rivet to get a longer shank, pop out the shorter shanks and replace them with the longer ones.
I'd be going this way too. taking the pins from longer rivets is a clever bonus touch.

I don't like rivnuts for applications that move. if the rivnut ever works loose then you're in a world of hurt as all you can replace it with is a bigger rivnut.
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Old 02-01-2024, 06:22 PM
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Oh wow those look awesome! How strong/sturdy are they? Safe for holding a police k9 in without fear of the rivets loosening up?
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Everlast AC/DC High Freq Tig/stick machine(newest edition to the family)
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O/A Victor setup
Dewalt power tools
Craftsman/Snapon hand tools
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