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Printed Circuit Card Retention Jig for Robotic Assembly

IP.com Disclosure Number: IPCOM000044445D
Original Publication Date: 1984-Dec-01
Included in the Prior Art Database: 2005-Feb-06
Document File: 2 page(s) / 22K

Publishing Venue

IBM

Related People

Booth, GW: AUTHOR [+4]

Abstract

When a printed circuit card is assembled by robotic insertion of parts, a jig is required with consistent card insertion and removal. The jig described uses spring-loaded ball catches which retain the card in a fixed position without any adjustment or manipulation to provide consistent robotic assembly. The clamp for the ball catches may be assembled in positions, as required, to suit different sizes of printed circuit card. An existing method of card retention is by mechanical slide catches which have to be pushed horizontally back and forward to lock and unlock the card in position. An alternative method uses mechanical clamps which have to be levered back and forward in use. This disclosure provides a simplified method of retention using spring-loaded ball cables.

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Printed Circuit Card Retention Jig for Robotic Assembly

When a printed circuit card is assembled by robotic insertion of parts, a jig is required with consistent card insertion and removal. The jig described uses spring-loaded ball catches which retain the card in a fixed position without any adjustment or manipulation to provide consistent robotic assembly. The clamp for the ball catches may be assembled in positions, as required, to suit different sizes of printed circuit card. An existing method of card retention is by mechanical slide catches which have to be pushed horizontally back and forward to lock and unlock the card in position. An alternative method uses mechanical clamps which have to be levered back and forward in use. This disclosure provides a simplified method of retention using spring-loaded ball cables. A printed circuit card 1 is located on base plate 2 of a jig between spring-loaded balls 3, 4, two each on opposite ends of card 1. Each ball and spring housing 5 has a collar 6 for location in a slot 7 in base plate 2 and is retained by C-shaped clip 8 which is secured to base plate 2. The position of spring-loaded balls 3 is selected so that card 1 may be pushed down past balls 3 which then move slightly forward to retain card 1 by spring pressure. In a robot application, robot grippers lift printed circuit card 1 vertically in or out of the jig, as required. The jig is designed with slots 7 in various positions so that the ball and spring hou...