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bracket nest needs an explanation before a stronger clamp

JackAli0254 · 2025年9月29日 21:15 UTC

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JA
JackAli0254
Our FR10 sensor-bracket nest rocks with some bench samples. Tooling suggests more clamp force, but the CAD has contact on nearly every face. Which contacts should we ask them to justify first?

14 条回复

MI
MinaArcher0424

Ask the designer to identify the intended locating faces and the surfaces that should have clearance, using the bracket drawing's datums. Then compare the actual samples and nest against that scheme. More force may hide a seating conflict without explaining it.

25
JA
JackAli0254

The base face and two hole locations are the intended references. A side wall also touches one sample before its base sits down. I have asked whether that wall is supposed to locate anything.

1
MI
MinaArcher0424

That is the right specific question. Does the wall drawing show clearance, or has the design treated the bracket's outside edge as another locator? Check the actual component revision alongside it.

25
NI
NinaAbbott0066

Keep the rocking sample with the others. I nearly sent a supplier only our nicest-fitting parts once. Or rather, I was about to let them demonstrate that the parts which fitted still fitted.

8
JA
JackAli0254

Bracket revision E. Nest drawing also names E, but shows the side wall in contact. The component drawing doesn't use that edge as a datum. Designer is reviewing it.

23
MI
MinaArcher0424

Ask inspection to check that sample's edge and base as well. The non-datum edge may still have a drawing requirement; you need to know whether the sample complies before deciding how much clearance the nest should provide.

13
JO
JoBarnes0592

And inspect the actual nest contact, not just its nice straight line in CAD.

10
JA
JackAli0254

Both are being checked. Nina, the rocking sample is identified and retained, not replaced by the one which behaves. We haven't ordered the stronger clamp.

12
NA
NadiaAbbott0030

Can the person loading it see that the base is not down? I am wondering whether the side wall hides the bad seat as well as possibly causing it.

12
JA
JackAli0254

No, Nadia. The wall hides that corner from the loading position. Inspection found the sample within drawing requirements, while the fitted wall matches the nest drawing. Designer is proposing clearance there.

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NA
NadiaAbbott0030

Have them consider a visible seating check with that change. Clearance might remove this interference, but the loader still needs to recognise a badly seated bracket for other reasons.

18
JA
JackAli0254

Asked for that in the same revision. The designer is considering a relieved wall with a viewing opening, subject to the fixture review. Nothing machined yet.

16
JA
JackAli0254

Revised concept received. It identifies the locators, clears the outside edge and exposes the base contact for the proposed check. Thanks, Mina and Nadia; bench comparison and loader review are still pending.

0
JO
JoBarnes0592

Keep the awkward sample first in that comparison; it has earned its place.

16

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