Electronic – Do Pick and Place machines check their work


For example, if a Pick and Place machine accidentally drops a component, will it realize this and grab an identical replacement?

The only reason I can think of as to why it wouldn't do this is to save time.

Best Answer

The machine will detect failure to pick a part up to the point where the vision system sees it, but not usually afterwards. The normal process is for PCBs to be visually inspected, either manually or automatically as a seperate process after placement, to detect misplaced or dropped parts. Most P&Ps will probably not know they have dropped a part after it has been imaged, although it is possible some might sense placement pressure and/or vacuum pressure to detect drops, however if set up properly, drops shouldn't really happen.