What should I compare when our UR5e sleeve grip changes between batches?

QuinnBowen · 26 Jan 2026, 07:54 UTC

Closed
QU
QuinnBowen
I kept copies of our pickup edits and finally put the clips beside each other. The troublesome sleeves are from a later batch, although the tray and job names are unchanged. I'm not qualified to call it gripper wear from a video. What should maintenance compare before we keep shifting the pickup?

15 replies

ZA
ZaraAdams0134
Replying to QuinnBowen

Compare the actual parts and the fitted contact assembly, because our recent pad problem was in the mounting face rather than the spare I was ready to order; your later batch might matter, but it isn't a diagnosis yet.

9 points
QU
QuinnBowen
Replying to ZaraAdams0134

We retained an earlier sleeve and three from the troublesome batch. Maintenance has the finger drawing. I've stopped treating the tray label as evidence that everything else stayed the same.

0 points
MA
MayaChen1171
Replying to QuinnBowen

Do the clips show the sleeve moving during closure, or already sitting crooked beforehand?

13 points
QU
QuinnBowen
Replying to MayaChen1171

One side moves as the fingers close. It looks upright before that, but the front view hides the opposite contact. I have marked that uncertainty in the comparison.

8 points
YA
YasminAdams0093
Replying to QuinnBowen

Have inspection compare the relevant sleeve dimensions and contact faces against the current drawing alongside maintenance's isolated assembly check; otherwise a difference between batches could be blamed on the tool without checking the parts.

9 points
AD
AdaBaker0477
Replying to QuinnBowen

Who is keeping the job unavailable while that is checked, so the covering shift doesn't inherit an instruction to get it going with another small correction?

21 points
QU
QuinnBowen
Replying to AdaBaker0477

Our shift lead owns that, Ada. The job is held for the check. The later batch is also separated, but not yet declared bad; inspection hasn't reported back.

10 points
MA
MayaChen1171
Replying to QuinnBowen

And are the saved edits tied to those batches, or just numbered versions?

11 points
QU
QuinnBowen
Replying to MayaChen1171

Numbered versions with change times. Two can be related to the operator's batch notes; the earliest one cannot. I won't invent a reason for it now.

11 points
ZA
ZaraAdams0134
Replying to QuinnBowen

That missing reason belongs in the review too, because restoring an earlier version would still be a choice someone has to justify against the physical setup.

14 points
YA
YasminAdams0093
Replying to YasminAdams0093

Can inspection check several current sleeves rather than only the one with the most obvious tilt, while retaining that specific example for comparison with the observed contact?

9 points
QU
QuinnBowen
Replying to YasminAdams0093

They did. Two later-batch sleeves are outside the specified roundness requirement at the gripping region; the others checked so far meet it. Maintenance found the finger and pad assembly consistent with its drawing.

12 points
MA
MayaChen1171
Replying to QuinnBowen

Does that explain the exact sleeve in the clip?

8 points
QU
QuinnBowen
Replying to MayaChen1171

Yes, its identity was retained and it is one of the two. Quality has held the batch for sorting. We still need the controls review and supervised transfer check on accepted sleeves before releasing the job.

19 points
AD
AdaBaker0477
Replying to QuinnBowen

Will the incoming check cover that gripping region now, rather than leaving the first robot miss to discover the next questionable batch?

16 points

Discussion closed

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