Browse Prior Art Database

Vacuum Chuck

IP.com Disclosure Number: IPCOM000091679D
Original Publication Date: 1968-Apr-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 43K

Publishing Venue

IBM

Related People

Ventimiglia, B: AUTHOR

Abstract

Small components such as solder rings 10 are retained in tool 12 in a predetermined pattern for dispensing onto electrical contact pins 14 of printed circuit board 16. Tool 12 includes nest plate 18 having a plurality of openings 20 arranged in a predetermined pattern, vacuum plate 22, and back plate 24 that forms, with plate 22, a rear vacuum or plenum chamber 26. Vacuum port 28 is open to chamber 26 and connected to a vacuum pump or the like. Chamber 26 opens through passages 30 to a plurality of vacuum chambers 32 that communicate with solder ring openings 20 for retaining solder rings 10. In operation, tool 12 is inverted and solder rings are spread over the entire face of plate 18 with the vacuum turned on.

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Vacuum Chuck

Small components such as solder rings 10 are retained in tool 12 in a predetermined pattern for dispensing onto electrical contact pins 14 of printed circuit board 16. Tool 12 includes nest plate 18 having a plurality of openings 20 arranged in a predetermined pattern, vacuum plate 22, and back plate 24 that forms, with plate 22, a rear vacuum or plenum chamber 26. Vacuum port 28 is open to chamber 26 and connected to a vacuum pump or the like. Chamber 26 opens through passages 30 to a plurality of vacuum chambers 32 that communicate with solder ring openings 20 for retaining solder rings 10. In operation, tool 12 is inverted and solder rings are spread over the entire face of plate 18 with the vacuum turned on. The solder rings are brushed over plate 18 to allow those rings that are properly located to fall into the nest holes. When openings 20 are filled, tool 12 is inverted and positioned over board 16 as shown. After proper alignment of tool 12 to the work-piece is obtained, the vacuum is released thus permitting rings 10 to fall from plate 18 onto corresponding contact pins. Dowel pin 34 locates plate 18 with respect to plate 22.

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