Browse Prior Art Database

Probe Holding Assembly

IP.com Disclosure Number: IPCOM000094671D
Original Publication Date: 1965-Apr-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 78K

Publishing Venue

IBM

Related People

Zaccaria, BA: AUTHOR

Abstract

This assembly is for supporting and aligning a probe which is utilized to inspect holes. The assembly prevents probe 1 from being tilted even if it is inserted off center into hole 2.

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Probe Holding Assembly

This assembly is for supporting and aligning a probe which is utilized to inspect holes. The assembly prevents probe 1 from being tilted even if it is inserted off center into hole 2.

Basically, the assembly has outer cylindrical hollow housing 3 and inner concentric hollow housing 4. Tension spring 5 is pivotally connected to housings 3 and 4 and maintains the upper face of shoulder 6 of housing 4 in contact with the lower edge surface 7 of housing 3. A conical-shaped probe guide 8 is disposed concentrically about probe 1. Compression springs 9 and 10, located within housing 4, urge probe 1 and guide 8, respectively, in their outward positions as indicated in the left drawing.

In operation, housing 3 is maintained normal to the workpiece 11 and is displaced downward in this direction. If no hole is present in workpiece 11, probe 1 contacts the workpiece's upper surface and is retracted within guide 8 by compression of spring 9. Housing 3 continues to be displaced downward causing guide 8 to be retracted within housing 4 by compression of spring 10. When the movement of housing 3 is reversed, springs 9 and 10 urge, respectively, elements 1 and 8 outward as the respective contacts of the latter with the workpiece surface decreases.

If hole 2 is present, probe 1 is over and partially in hole 2 when housing 1 is moved in a downward direction. If the longitudinal axes of hole 2 and probe 1 are aligned, then further downward movement of housing...