Dismiss
InnovationQ will be updated on Sunday, Oct. 22, from 10am ET - noon. You may experience brief service interruptions during that time.
Browse Prior Art Database

Bent Pin Detector

IP.com Disclosure Number: IPCOM000047834D
Original Publication Date: 1983-Dec-01
Included in the Prior Art Database: 2005-Feb-08
Document File: 3 page(s) / 77K

Publishing Venue

IBM

Related People

Crisafi, F: AUTHOR [+3]

Abstract

This article concerns apparatus for mechanically testing circuit modules to determine if the modules have bent connection pins. The apparatus features a pneumatically activated and resiliently mounted pin die which is used to sense module pin orientation and a light beam sensor for detecting failure of the die to engage bent module pins. Additionally, the apparatus features ejection means responsive to the sensor for ejecting modules found to have bent pins. Conventional circuit module electrical testers are equipped with pin sockets that are driven into engagement with the module before the module is transported to a station for electrical test. In the case where the module has one or more bent pins, the forced mating of module and socket further bends the pins and prevents proper electrical connection of the module.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 52% of the total text.

Page 1 of 3

Bent Pin Detector

This article concerns apparatus for mechanically testing circuit modules to determine if the modules have bent connection pins. The apparatus features a pneumatically activated and resiliently mounted pin die which is used to sense module pin orientation and a light beam sensor for detecting failure of the die to engage bent module pins. Additionally, the apparatus features ejection means responsive to the sensor for ejecting modules found to have bent pins. Conventional circuit module electrical testers are equipped with pin sockets that are driven into engagement with the module before the module is transported to a station for electrical test. In the case where the module has one or more bent pins, the forced mating of module and socket further bends the pins and prevents proper electrical connection of the module. At the test station, the tester perceives the absent pin connection as a faulty circuit rejecting the module prematurely. The pin tester in the figures permits the prescreening of modules so that modules having bent pins may be segregated and corrected prior to electrical test.

As shown in Figs. 1 and 2, apparatus 10 includes a chute 12 for channeling modules 14, each having a plurality of connection pins 16, to an electrical tester (not shown). Apparatus in accordance with this article features a test station 18 in association with chute 12 for prescreening modules 14 for bent pins. Test station 18 features a module pin die 23 resiliently mounted relative to chute 12 for engaging module pins 16. Additionally, station 18 further includes a pneumatic actuator 22 for driving pin die 23 into engagement with module pins 16. A resilient coupling in the form of a spring 24 connects the actuat...