Browse Prior Art Database

Mandrel for Component Testing

IP.com Disclosure Number: IPCOM000047920D
Original Publication Date: 1983-Dec-01
Included in the Prior Art Database: 2005-Feb-08
Document File: 2 page(s) / 31K

Publishing Venue

IBM

Related People

Broome, RW: AUTHOR

Abstract

A test fixture which permits critical parts to be tested prior to permanently mounting the critical parts onto a larger assembly is described. The test fixture comprises a base member 1 having at least one mandrel 2 for holding the critical part 3 to be tested. The mandrel 2 comprises a chuck portion 4 and a spring-loaded shaft 5 which is terminated in a tapered end part 7. The chuck portion 4 is expandable, and the expansion or contraction is controlled by movement up or down (as shown by arrow 6) of shaft 5. When shaft 5 is moved up, end part 7 permits the chuck member to contract so that part 3 to be tested can be inserted over the mandrel. When shaft 5 is then moved down, chuck member 4 expands to hold the part 3 firmly in position so that testing can be accomplished.

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 100% of the total text.

Page 1 of 2

Mandrel for Component Testing

A test fixture which permits critical parts to be tested prior to permanently mounting the critical parts onto a larger assembly is described. The test fixture comprises a base member 1 having at least one mandrel 2 for holding the critical part 3 to be tested. The mandrel 2 comprises a chuck portion 4 and a spring- loaded shaft 5 which is terminated in a tapered end part 7. The chuck portion 4 is expandable, and the expansion or contraction is controlled by movement up or down (as shown by arrow 6) of shaft 5. When shaft 5 is moved up, end part 7 permits the chuck member to contract so that part 3 to be tested can be inserted over the mandrel. When shaft 5 is then moved down, chuck member 4 expands to hold the part 3 firmly in position so that testing can be accomplished. The movement of shaft 5 can be controlled either manually by push button 8 or by any suitable mechanism (not shown). In a specific application, base member 1 is a magnetic head arm and the critical part 3 to be tested comprises a magnetic head suspension. By the use of this test fixture, both electrical and flying characteristics can be checked for the magnetic head assembly prior to incorporation into a head arm assembly.

1

Page 2 of 2

2

[This page contains 2 pictures or other non-text objects]