Process planning for a modular component placement system
نویسنده
چکیده
This paper discusses the design of a hierarchically structured process planning system for a printed circuit board assembly hne. BasIcally. the assembly system consists of a series of mdependently operatmg placement modules, connected by a carrlerless conveyor system. Both the modules and the conveyor system are fully automated, while the complete system 1s also under centrahzed computer control. We show how the process planning problem is naturally decomposed into a series of hierarchically coupled subproblems, each of a combinatorial nature. Models for all subproblems are developed and solution techmques are bnefly indicated. NumerIcal results for a number of industrial cases are also &cussed.
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