Good morning, I am working on robot one of 4 that we have setup for mig welding. As of late, one of the robot keeps getting a jam right before it goes into the wire conduct leaving the drum. It seams to be happening at the same weld every time. We have tried multiple drums and keep having the same issue. Anything that you can suggest is appreciated, I have searched around without any luck at this point.
Fanuc welding robot Jamming at drum
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ajjohns2003 -
November 17, 2016 at 2:58 PM -
Thread is marked as Resolved.
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I don't really understand the problem (as many others I suppose). Can you be more specific? What is getting jammed? Do you get any error messages on the robot?
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I have seen wire in a barrel get twisted and loop over inside the barrel. A little cursive "E" in the wire would jam up heading into the conduit. Being how you say its always at the same weld tells me that the motion in the program is playing a major roll here. I would look at the motion around the weld previous to the one it gets jammed on. Its possible the wire flips inside the barrel and gets several inches of weld down before the knot gets up to the conduit. I once had a big box of wire do the same thing. I had to make a riser for the box topper to make the box taller. This gave more room above the wire for the knot to flip back over before making it back up to the conduit.
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Sh*t... I thought is was a possible partner for my trumpet-playing robot....
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I don't really understand the problem (as many others I suppose). Can you be more specific? What is getting jammed? Do you get any error messages on the robot?
Thank you for your reply, between the drum and the feeder we keep getting a knot or a snag and it always gets stuck in the feeder just before the rollers. Once the wire gets stuck we do receive an error that the arc has been lost. It was at the same point every time until I changed the routing of the whip from the drum, now it randomly happens at different points.Sent from my SM-N920W8 using Tapatalk
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Sh*t... I thought is was a possible partner for my trumpet-playing robot....
Thank you for your reply, I made a temporary riser to test if this would help.Sent from my SM-N920W8 using Tapatalk
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Thank you for your reply, I made a temporary riser to test if this would help.Sent from my SM-N920W8 using Tapatalk
Well even with this extension we are still getting a kink or knot in the wire, I always miss it when watching the drum. I'm banging my head against the wall.Sent from my SM-N920W8 using Tapatalk
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have you tried to exchange the barrel, possibly to one from another production batch?
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We've swapped barrels twice but I believe that they were from the same batch. We have another order arriving Monday
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It is also possible that your wire feeders bearings are ageing. Loose bearings can put a spin on the wire and force it to flip. You can test for this. Remove the whip and the conduit from the feeder. Run a length of wire about 4 feet long through the rollers. Once the wire has come through, bend the end to 90 deg. This bend will allow you to see if the wire is spinning as it goes though the feeder. Also should pay attention to how tight the tension on the rollers is. If the rollers are too tight, it can cause this too. The tension should be just tight enough to work and no more.
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Turns out that it was the batch of wire, problem just went away on its own. Other companies purchasing from the same vendor also had some issues.
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so I was right Good that the problem is solved!