We're planning defining dimensional control for bracket welding with Universal Robots UR5e on a gusseted steel support bracket weldment in a welded-bracket fabrication workshop. Our old inspection notes say it looks aligned while restrained, then falls outside the drawing requirement after release. I want to untangle fit-up, fixture location and final inspection before our new cell inherits an unexplained correction routine.
This is a records review, not live welding adjustment.
Does the inspection procedure define the released condition and reference supports? Check that alongside whether each old measurement says how the assembly was held.
The sheets mix clamped checks and released measurements. Some don't say which. The drawing has the dimension, but our procedure leaves the support condition vague.
Ask quality and the design owner to establish the intended acceptance condition, then group historical results by their documented measurement state to support comparison.
You're right; I overstated that. Grouping exposes one difference. Keep support conditions, fixture revision and process links visible too, including anything unknown.
Should a fixture revision remain unknown when a colleague remembers a likely version but no record confirms it? We're disagreeing about whether to fill those gaps.
@SaraBell0635 On my bracket job, filling blanks from memory produced a very persuasive trend. Finding the original fixture sheets made the trend disappear. Not my favourite chart.
@EmmaBennett0724 Because the required inspection condition may be after release. Holding a shape under restraint doesn't establish the shape the assembly takes without that restraint.
The drawing owner confirms released inspection on specified reference supports. Quality is putting that condition into the sheet. At least that part won't be guessed.
I can describe the measurement uncertainty better, although the cause of released variation remains open. Any fixture change still needs a specialist assessment supported by the inspection basis and traceable records.
The remaining cause and assessment questions explain the open fixture decision. Improving the measurement basis is useful without claiming those questions are settled.