Metal working – Method of mechanical manufacture – Electrical device making
Patent
1986-12-23
1988-04-19
Eley, Timothy V.
Metal working
Method of mechanical manufacture
Electrical device making
29740, 29833, 901 9, 901 47, H05K 330, B23P 1900
Patent
active
047380250
ABSTRACT:
Automated positioning apparatus for positioning multi-contact components on a circuit board utilizes automated members having a high degree of repetitive movement but not in themselves accurate, such member being relatively inexpensive. A positioning member picks up a component and moves it over a first viewing head. The component is viewed and its orientation determined. A viewing head on the positioning member is then positioned over a target on a circuit board and its position and orientation determined. The results enable the positioning member to position the component on the circuit board in the correct position and orientation. The viewing heads are calibrated for aspect ratio and pixel dimension. Also, the field of view of the viewing heads are calibrated for orientation relative to the positioning member. The position and orientation of the viewing head on the positioning member relative to a pick-up member on the positioning member is also obtained.
REFERENCES:
patent: 4342090 (1982-07-01), Caccoma et al.
patent: 4598456 (1986-07-01), McConnell
patent: 4663658 (1987-05-01), Lanne et al.
patent: 4675993 (1987-06-01), Harada
IBM Tech. Discl. Bull, vol. 27, No. 6, Nov. 1984, pp. 3653-3655, by M. S. Chester et al.
Arbes Carl J.
Eley Timothy V.
Northern Telecom Limited
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