Browse Prior Art Database

Dimension Checker

IP.com Disclosure Number: IPCOM000076361D
Original Publication Date: 1972-Feb-01
Included in the Prior Art Database: 2005-Feb-24
Document File: 2 page(s) / 34K

Publishing Venue

IBM

Related People

Guinn, RA: AUTHOR [+2]

Abstract

Dimensions machined on a workpiece are rapidly checked for absolute values, deviation from specified values, conformance to specified tolerances, etc. by attaching an electronic micrometer's probes to a gaging block.

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Dimension Checker

Dimensions machined on a workpiece are rapidly checked for absolute values, deviation from specified values, conformance to specified tolerances, etc. by attaching an electronic micrometer's probes to a gaging block.

A slot on the workpiece aligns itself with a mating pin on a base when a fastener (not shown), such as a hinged arm or clamp, holds the workpiece to the base. This aligns the workpiece and gaging block center lines with two probes fixed in the block. The probes are connected to a single multiinput electronic micrometer, separate micrometers, or recording micrometers, etc. For example, Brown & Sharpe No. 983 micrometer probes and No. 990 micrometer indicators may be used.

In operation, the gaging block legs are lowered to contact the machined surfaces of a "standard" workpiece and the probes positioned in the gage to give zero-centered readings on the micrometer. This reading then indicates correct dimensions k, d, and h in subsequently substituted test workpieces.

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