I have an Image backup file from a robotic arm at work that I want to load onto roboguide. Is this at all possible or do I need a different type of backup?
Posts by Ant.Espo.87
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It seems as though I have wasted everyone's time. The Tool Frame was off by over 30mm. I assumed it was all fine since my predecessors had it up and running at one point. I am sorry.
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I'll have to check the screws then. Thank you.
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The robot was properly calibrated and the payloads were correct. Sorry to not specify. We are now under the assumption that an encoder is gone bad and are trying to find ways to work around it. Service is not an option at the moment.
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It turns out that a failed backup was performed and the arm had to be remastered. It was not recalibrated afterwards. That may be the issue.
The payloads are set. the robot uses 2 grippers and they are under the max load
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The component is less than an ounce. about an inch and a half long by a quarter inch.
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I ended up changing them all to 500mm/sec FINE and they still have the same issues.
I'm not sure the weight. I was not the one who installed the tool. I am cleaning up after a previous worker who did not finish the cell.
The issue is that when the program is running the tool will shift further than the accuracy leniency. From what I know, the repeatability is supposed to be within 0.08mm. This is not the case when it is placing the component. It is shifting past a full mm after running only 3 iterations.
Let me clarify, it is not just in this one spot. It happens all over at random times. It makes no sense to me that it is happening and my only thought is that it is mechanical. I was just wondering if there is any solution that could be done outside of calling Fanuc for maintenance since my company is a lot on the cheap end.
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I will run it by my head of department and try that out. Thank you
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I don't know if it matters but I tried running it in STEP at 10% speed and the same errors appear.
And by jarring do you mean that it is jarring itself? it makes no contact with anything else until the part is gripped.
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I'm using the TeachPendants coordinate system and the change is also visible. When the robot places the part into another gripper that is stationary other than rotation, it often misses and the part will fall. This also happens after the rotation during the pick from the rotary gripper. The robot gripper will miss and the part will fall.
This is also reflected when the part is placed into a vise inside the CNC machine. The part is often off in the y-direction of the tool and unable to fit into the slot it was designed to fit in.
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Sorry, when I have the point programmed in, and it is at that point, the @ symbol appears. The point keeps this symbol when it deviates either 1.7525mm in the positive direction or the negative direction in either of the axes.
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I have a M20-iA arm and a R30-iB controller. There seems to be an issue with the accuracy. A point saved into the program keeps its point when it is moved in the tool frames y-direction as well as its z-direction up to 1.75mm in either direction in those axes. I am not sure if this is normal for the model of robot or there is a problem with the servo motors.
The motors seem to be a little rough when the move. I'm not sure of the proper descriptive term, but what i mean by rough is that they do not seem to move smoothly. They have some jerky motion at some points.
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I'll have to check. I kept a log of the points and there was a deviation of anywhere from .03m to .3m. And no one else is supposed to be touching it so if they are it is a problem. The company also refused to service the arm since they "just did a year ago." I don't think they know what that sounds like.
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I've been working on a robotic cell for the company I work for for months now as an intern. The robot keeps losing its points. By losing points I mean that it has the correct point saved when I leave, then is off by full mm by the next day when I come in. It seems to need to be updated everyday. There is no PR data to cause this issue. My only 2 ideas left are that either someone is touching it when I am not around, or that the robot is loading an older version of the code. It seems to work fine if I restore the images that I back up the day before. If I left any information out I apologize. Still interning.
Arm is M-20iA
Controller is R-30iB