Metal working – Means to assemble or disassemble – Means to assemble electrical device
Patent
1995-06-30
1997-07-29
Vo, Peter
Metal working
Means to assemble or disassemble
Means to assemble electrical device
29759, 29821, 29823, 198763, H05K 334
Patent
active
056511760
ABSTRACT:
A circuit board fabrication apparatus and method having a vibratory feeder tray is disclosed. The feeder tray is preferably of low mass and horizontally-disposed and has multiple grooves which closely fit electronic parts, and hollowed-out bottom portions, generally below the rails separating the grooves. The hollow portions significantly contribute to low mass. Almost 50% of the mass of the tray's top plate may be removed. The parts are picked up one at a time and placed at precise positions on circuit board substrates by the rotating nozzles of a pick-and-place turret. An electromagnetic coil operating below the grooves of the feeder tray smoothly and continuously advances the parts in the grooves to the region in which they are picked up by the nozzles. Additionally, a slider table supporting the vibratory feeder tray positions each groove of the feeder tray in turn at the uptake point of the turret. The feeder tray may be easily reloaded with parts while it is vibrating, thereby permitting the fabrication apparatus to run continuously for long periods. The vibratory feeder tray allows for quick delivery of the parts in a consistent orientation and, together with the slider table positioning capability and the action of the rotating turret, allows for high volume manufacture of circuit boards.
REFERENCES:
patent: Re33780 (1991-12-01), Itagaki et al.
patent: 4768647 (1988-09-01), Lehtola
patent: 4809839 (1989-03-01), Elliott
patent: 4880106 (1989-11-01), Falconer et al.
patent: 4952109 (1990-08-01), Hendricks
patent: 4995157 (1991-02-01), Hall
patent: 5116185 (1992-05-01), Lofstedt
patent: 5153983 (1992-10-01), Oyama
patent: 5154316 (1992-10-01), Holcomb et al.
patent: 5155903 (1992-10-01), Nakashima et al.
patent: 5184716 (1993-02-01), Gaines
patent: 5208969 (1993-05-01), Hidese
patent: 5295294 (1994-03-01), Ito
patent: 5329692 (1994-07-01), Kashiwagi
patent: 5337465 (1994-08-01), Tamaki et al.
patent: 5509201 (1996-04-01), Ingwersen
Hsueh Paul Y. J.
Ma Abraham C.
Schiesser Hans
MA Laboratories, Inc.
Nguyen Khan
Schneck Thomas
Vo Peter
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