I have a rather simple question, which I still coulnd`t find an answer for:
How can I realise an assembly in a specific order so that after the main part enters the assemby station first part A gets into the station (while part B can´t enter the station) and then when the main part and part A are in the station part B can enter.
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freelance simulation specialist
I was trying to avoid using a sub-frame since that causes the material flow to get stuck when uing a pick-and-place robot. When using a normal assembly station I can make the robot stay at the assembly station so that this problem doesn't occure, but when using a network it seems to not work.
Is there a way to make the modell work with using a sub-frame?
(I have attached an example file.)
Thanks for that suggestion. Unfortunately the problem is a bit more complex: The PickAndPlace that is connected to the two conveyors is handling the main part, that part A and parts B get assembled to.
(As explanation what is happening in reality: The PickAndPlace2 takes the main part from the conveyor and puts it into a assembly fixture, the PickAndPlace assembles part A, the PickAndPlace1 assembles part B and finally PickAndPlace2 takes the main part again an puts it back onto the conveyor system.)
Without using a sub-frame it's possible to make the third PickAnd Place to wait at the assembly station until something comes back. (Using the method:
if @.destination = XXXX then
PickAndPlace2.setDestination( @.destination, true );
PickAndPlace2.setDestination( @.destination, false );
But when using a sub-frame in order to realise an assembly of part A and part B in two seperate steps, this above mentioned method obviously doesn't work any more.
Maybe this is a bit too complex to model and I shoud just leave it as one assembly station, without using an sub-frame for a two step assembly. My hope was that there is a way to block the entrance of part B until part A is assembled. That indeed wouldn't be an accurate representation of reality, but at least consider the fact that part B cannot be assembled before part A.