Cannot cost our UR5e bracket route from the final pass sheet

SarahBrown0937 · 20 Oct 2025, 05:29 UTC

Closed
SA
SarahBrown0937
I followed an old bracket batch through its paperwork and found an extra bench between welding and final inspection, with no task description on the route card; before our UR5e proposal inherits a mysterious correction operation, how do I separate what was checked in the jig from what happened after release?

20 replies

NO
NoahBennett0716
Replying to SarahBrown0937

Start with the actual checks. Was the jig entry a measurement or a note that the bracket contacted its stops? The final pass sheet may describe a later condition after that unidentified bench.

8 points
SA
SarahBrown0937
Replying to NoahBennett0716

Jig card says touches upright, no dimension; final sheet records flange height, and the bench has an old height gauge beside it.

22 points
NA
NathanChen1156
Replying to SarahBrown0937

Who used that bench? A height gauge could have been checking or sorting parts, not necessarily correcting them. The unexplained step needs a description before a new fixture is credited with removing it.

25 points
LU
LucyCarter1002
Replying to SarahBrown0937

Keep fit-up and released acceptance separate while you ask. We have had to withdraw an in-fixture pass claim on another bracket review because the photo showed restraint, not a comparable dimensional result.

14 points
ZA
ZaraBaker0482
Replying to SarahBrown0937

I would also ask whether every bracket visited the bench or only selected ones, because a final average can hide both the selection and the extra work.

21 points
SA
SarahBrown0937
Replying to NathanChen1156

Former operator says all went there for a height check, then some were sent to a separate correction station; the route card only records the final inspection after they returned.

11 points
NA
NathanChen1156
Replying to SarahBrown0937

That is two missing operations in the cost, then: checking every part and correcting a subset. Do you have any record of how that subset was chosen?

12 points
NO
NoahBennett0716
Replying to NathanChen1156

Nathan, two operations missing from the written route, yes. We don't yet know whether either cost was hidden elsewhere in the old estimate.

10 points
NA
NathanChen1156
Replying to NoahBennett0716

Fair correction. I meant missing from the route we have, not proven absent from every old costing sheet.

5 points
LU
LucyCarter1002
Replying to SarahBrown0937

Sarah, see whether the old check instruction names the drawing revision and supports. Finding the gauge is helpful, but we still need to know what it was set up to measure.

23 points
SA
SarahBrown0937
Replying to LucyCarter1002

Found the check instruction for revision B, using the mounting face on a support block; our proposed bracket is revision D, and the support block itself has no identifier.

13 points
ZA
ZaraBaker0482
Replying to SarahBrown0937

What changed between B and D? A familiar bracket name is not enough to decide whether the old support or correction has any place in the new route.

15 points
SA
SarahBrown0937
Replying to ZaraBaker0482

Gusset profile and one flange dimension changed, so I have kept the old instruction as history rather than a ready-made method for the new trial.

19 points
NO
NoahBennett0716
Replying to SarahBrown0937

That is the right boundary. Let fabrication and quality define the current released check, with the fixture designer involved where the locating contacts matter. No need to force revision D through revision B's explanation.

7 points
LU
LucyCarter1002
Replying to SarahBrown0937

I'd still ask the operator what the correction involved. It may reveal why the old process needed intervention, even if you cannot copy its method or allowance to the new bracket.

5 points
ZA
ZaraBaker0482
Replying to LucyCarter1002

Lucy, agreed. History can explain a cost risk without becoming the instructions for the new cell.

18 points
SA
SarahBrown0937
Replying to LucyCarter1002

Operator remembers correcting the flange height but cannot give the selection limit from memory; I have named that gap instead of borrowing the final acceptance limit and assuming it was the same.

15 points
NA
NathanChen1156
Replying to SarahBrown0937

Keep correction and first released inspection visible in the proposed trial, even if the expectation is that no correction will be needed. Otherwise the trial can only confirm its own optimistic route.

9 points
NO
NoahBennett0716
Replying to NathanChen1156

And record the incoming component condition on that trial. A different fit-up can change the question before the assembly ever reaches the fixture.

23 points
ZA
ZaraBaker0482
Replying to SarahBrown0937

Did fabrication and quality agree who owns the new method, Sarah? Interested whether the old gauge turned out useful or remains only an unidentified bit of history.

10 points

Discussion closed

This discussion is closed to new replies after six months without activity. Last activity: .