A panel clears the stack but catches the tray lip

RosaChan1075 · 22 Feb 2025, 06:07 UTC

Closed
RO
RosaChan1075
I watched our supplier's bench trial for an FR10 panel transfer. The vacuum tool holds the aluminium panel, but the far edge droops and brushes the receiving tray. The second panel in the stack twitches upward on pickup too. They called the trial successful because the top panel stayed attached. I'd like the next trial to answer what actually arrives at the tray and in what shape.

17 replies

MA
MayaBrooks0823
Replying to RosaChan1075

Split the trial result into retention, single-panel delivery and placement, because the first can pass while the other two fail.

8 points
RO
RosaChan1075
Replying to MayaBrooks0823

I've done that in our comments. Supplier says the tray lip is temporary, but it's our production tray in the video. I sent its drawing again.

6 points
MA
MayaBrooks0823
Replying to RosaChan1075

Get them to identify the receiving fixture in the revised trial plan so that disagreement doesn't reappear after testing.

16 points
RO
RosaChan1075
Replying to MayaBrooks0823

They acknowledge the tray now. Suggested approaching at a tilt. I haven't agreed because I don't know what that does to the unsupported edge or release.

17 points
MA
MayaBrooks0823
Replying to RosaChan1075

Have the tooling and integration people review that proposed movement together; a different angle changes more than the lip clearance.

8 points
DA
DavidArcher0432
Replying to RosaChan1075

Did the lower panel leave the stack or just flex? Those aren't the same failure. I'd want a side view before anyone starts selling you separation hardware.

1 points
MA
MayaBrooks0823
Replying to DavidArcher0432

Yes, establish what the second sheet did and count what arrived, rather than naming a double pick from one ambiguous frame.

5 points
EL
ElliotBell0683
Replying to RosaChan1075

Was the delivered panel flat again after release, or did you keep a bent sample?

2 points
MA
MayaBrooks0823
Replying to ElliotBell0683

Keep its identity linked to the video if it's available; otherwise a later photo of a bent panel proves very little.

15 points
RO
RosaChan1075
Replying to ElliotBell0683

They retained that panel. It has a small edge deformation where it met the lip. The side footage shows the lower sheet flexing then settling, so that attempt delivered one panel.

11 points
CH
ChenBarnes0529
Replying to RosaChan1075

Our first tooling review spent all its time on vacuum and almost none on the receiving fixture. Curious whether they've proposed more edge support, or are still trying to solve everything by changing the approach.

7 points
RO
RosaChan1075
Replying to ChenBarnes0529

They've proposed extending the tool's support arrangement as well. No dimensions agreed yet. We've asked them to check the extended tool against the tray instead of assuming more support always means more clearance.

15 points
MA
MayaBrooks0823
Replying to RosaChan1075

Include open access for release in that geometry check; an extension can support the sheet and then obstruct its final seating.

17 points
DA
DavidArcher0432
Replying to RosaChan1075

I was too dismissive about the second sheet earlier. Flexing and settling still deserves investigation if it changes unpredictably across the stack. Just don't count it as a confirmed double delivery.

4 points
RO
RosaChan1075
Replying to DavidArcher0432

That's how we've recorded it: lower-sheet movement observed, one delivered in that attempt. The revised plan includes several stack conditions and inspection of the delivered panels, not just the vacuum trace.

14 points
RO
RosaChan1075
Replying to RosaChan1075

New support mock-up cleared the tray in the supplier's static check. They still owe us the reviewed transfer trial and separation evidence. We're keeping the original damaged panel as a comparison sample.

18 points
MA
MayaBrooks0823
Replying to RosaChan1075

When that transfer trial arrives, check it used the reviewed support arrangement; a static clearance photo and a different tool in the moving clip won't establish the combined result.

6 points

Discussion closed

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