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Browse Prior Art Database

Anti-Crash System for Flexpunch Machines

IP.com Disclosure Number: IPCOM000034917D
Original Publication Date: 1989-May-01
Included in the Prior Art Database: 2005-Jan-27

Publishing Venue

IBM

Related People

Authors:
Seing, HS Watts, KW [+details]

Abstract

A technique is described whereby a positioning system is used with a flexpunch machine to prevent green-sheet carrier tooling and punch and die tooling from crashing in the event of power, software or other malfunctions. A series of sensors and mechanical stops combined with interlocking circuitry provide flexpunch machines with anti-crash capabilities. Flexpunch machines, used for punching via hole patterns in multi-layer circuit green-sheet material typically consist of carrier assemblies, punch and die assemblies, as shown in Fig. 1, and positioning and verification devices controlled by computer software. The machines are designed to function automatically so as to move the green-sheets into position, punch the required holes and verify the (Image Omitted) success of the operation.