Browse Prior Art Database

UNIVERSAL TEST SYSTEM (UTS) CORE TO SORT ALIGNMENT FIXTURE

IP.com Disclosure Number: IPCOM000009646D
Original Publication Date: 2000-Jan-01
Included in the Prior Art Database: 2002-Sep-06
Document File: 5 page(s) / 150K

Publishing Venue

Motorola

Related People

Johnny W. Tolly: AUTHOR [+3]

Abstract

Internal core structure on the UTS handler flex- es forward during positive, temperature operational requirements. This results in numerous hours of lost productivity during the year. At the present time there is not anything mechanical that can be done about the UTS core structure flexing forward. A complete rework of the core super structure would be required. This is cost prohibitive.

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Technical MOTOROLA @ Developments

UNIVERSAL TEST SYSTEM (UTS) CORE TO SORT ALIGNMENT FIXTURE

by Johnny W. Tolly, Robert Reed and Stephen Hoevelman

PROBLEM

  Internal core structure on the UTS handler flex- es forward during positive, temperature operational requirements. This results in numerous hours of lost productivity during the year. At the present time there is not anything mechanical that can be done about the UTS core structure flexing forward. A complete rework of the core super structure would be required. This is cost prohibitive.

SOLUTION

  The sort rail assembly is aligned off the center axis of the core structure. An alignment fixture (Figure 1) has enabled the UTS to operate without experiencing mechanical jams during temperature operational requirements. The operation and pur- pose of the alignment fixture is to mechanically align the core and sort retrieval assembly in relation to each other. The method of alignment is to posi- tion the alignment futture in the core structure. The alignment fixture is then secured to the structure using two parallel machinist clamps. The sort retrieval rail assembly is then positioned next to the alignment fixture and locked in place with the exist- ing socket head screws.

RESULTS

  A comparison was made between Sort Retriever Performance for two consecutive six-month periods. This enabled a comparison of results before imple- mentation of the alignment fvtture and results after implementation of the alignment fixture. Results are shown in the data presented in Figures 2-4. As demonstrated by the data, there was a 48.35% decrease in the amount of handler down time and a
62.39% decrease in the number of repeat occur- rences.

SUMMARY

  The Core to Sort Alignment Fixture removes the potential for error out of the alignment procedures. The alignment fixture is positioned in the core struc- ture and secured with two machinist parallel clamps, resulting in less down time and fewer jams. Written procedures have been developed and implemented to accompany t...