Bracket acceptance measured against the jig itself

VictorAllen0272 · 2025年8月22日 20:07 UTC

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VI
VictorAllen0272
I'm checking an old gusseted-bracket route for a UR5e proposal and the in-jig inspection uses the jig upright as its reference, while final inspection measures the released bracket from its base face; the estimator has put both in one before-and-after column, which seems a bit ambitious.

10 条回复

MA
MayaChen1171

Does the drawing specify those as comparable measurements? Different reference faces may make the numbers answer different questions. I would ask inspection before treating their difference as movement after release.

13分
VI
VictorAllen0272

No, drawing F specifies the released part from base datum A, and the jig sheet just says flush with upright; I think the spreadsheet has given a workshop check more precision than it ever had.

19分
MA
MayaChen1171

Then have the estimator remove that calculated difference. Keep both original observations. Which final measurements were taken before correction?

25分
CH
ChloeAbbott0048

Also ask the person who wrote flush what they checked, because it could mean a visual gap, a gauge or just that the clamp closed without a fight

-7分
NO
NoahBennett0716

I've got a similarly misleading bracket chart under review. Keep the raw checks separate, yes, but I wouldn't discard the jig observation. It may still describe an important loading problem once somebody explains it.

7分
VI
VictorAllen0272

Maya, the final sheet follows correction on the traveller; Chloe, the setter says flush was a visual seating check before welding, no gauge, which answers why there are ticks rather than readings.

8分
MA
MayaChen1171

That is useful context. Can the review now specify incoming fit-up, the seating check and untouched released dimensions as separate stages? The old final ticks leave the last of those unknown.

9分
CH
ChloeAbbott0048

Noah, agreed on keeping it, especially now Victor has explained what the setter actually did; the spreadsheet version was the problem, not the bloke checking that his bracket sat down

4分
VI
VictorAllen0272

Fabrication and inspection are defining that staged trial, Maya; the calculated movement column is gone, original checks remain, and correction time stays an open estimate item until we have current results.

22分
NO
NoahBennett0716

Is the current gusset the same revision as the old route used? Worth asking before the trial scope quietly inherits another assumption.

24分

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