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Published byChristopher Conley Modified over 9 years ago
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Care & Feeding of Machines Feeding parts –vibratory feed bowls –conveyors –pick & place Material obtained from: –Boothroyd, Automatic Assembly –Ken Goldberg, UCB Industrial Engr Oper. Rsrch (http://www.ieor.berkeley.edu/~goldberg/index.htm l) –Robert-Paul Berretty, PhD thesis, Utrecht ( http://www.library.uu.nl/digiarchief/dip/diss/1940512/full.pdf )
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Designing Parts for Feeding Symmetry Asymmetry Tangling Shingling Wedging
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Symmetry
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Asymmetry
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Tangling
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Shingling
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Wedging
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Designing for Insertion
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Simplifying the Design
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Fastener Feeding Requirements Orientation –vibrating bowl –non-vibrating feeders (see Boothroyd - Assembly Automation) Singulation –escapement mechanisms –pick and place Pre-collated components
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Singulation
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Gravity Feeders
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Bowl Feeders
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Design Factors –Part symmetry –Selector efficiency E=F o /F i –Recirculation effects
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Bowl Feeders - Trap Design
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Non-vibrating Feeders
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Pick & Place
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Pre-collated Components
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Conveyors Orienting with pins or fences
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Conveyor part orientation - pins
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Conveyor part orientation - fences Any polygonal part can be oriented up to symmetry by a fence design
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Conveyor part orientation - fences
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Conveyor part orienting - 3D parts
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