Why do both tooling quotes stop weighing things at the housing?

MeiAdams0168 · 2025年4月27日 22:39 UTC

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ME
MeiAdams0168
I've got two UR5e gripper proposals for an aluminium housing. Both say the part mass is fine. One has long fingers, an adapter and a little forest of fittings. Do those bits become weightless because they're in another line of the quote? What should I ask for to compare the complete assemblies? I'm happy to have a proper load review done, but I'd like to send someone the information they actually need rather than two cheerful yeses.

12 条回复

TH
TheoBrooks0845

Complete tool mass, held-part position and centre of gravity relative to the flange. Start there.

23分
ME
MeiAdams0168

Thanks. Including the adapter and fittings, presumably? The first supplier's tool mass leaves the adapter out.

13分
TH
TheoBrooks0845

Yes. It comes along for the ride.

5分
FI
FionaAli0238

Our teaching tool gained a spacer during commissioning and the old load sheet stayed in the folder. Nobody meant to hide it. Ask for one assembled drawing so you can check the quoted masses against what will actually be fitted.

4分
TH
TheoBrooks0845

And who checks that assembly against the robot's applicable load guidance? Name someone in the proposal.

11分
TH
ThomasCarter0973

Why are the longer fingers needed?

10分
TH
TheoBrooks0845

Good question for the fixture drawing.

22分
ME
MeiAdams0168

To reach past a locating wall. The shorter fingers need a different approach, which hasn't been drawn. So that quote has a missing access check as well as missing load data.

18分
TH
TheoBrooks0845

Get both approaches checked. Can't compare tools if only one has a route into the fixture.

4分
TO
TobyBaker0492

Will you be changing fingers for other housings later? I'm wondering whether you're buying one fixed setup or something maintenance will keep rebuilding. The load information needs to follow those changes too.

2分
ME
MeiAdams0168

One family initially, others only proposed. I'll keep those future versions out of this approval and ask what each change would need reviewed. Enough loose ends in the first setup already.

12分
TH
TheoBrooks0845

Fair enough. Close one complete tool first.

20分

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