Browse Prior Art Database

Closed Loop Precision Positioning on a Surface Grinder

IP.com Disclosure Number: IPCOM000051443D
Original Publication Date: 1981-Jan-01
Included in the Prior Art Database: 2005-Feb-10
Document File: 2 page(s) / 61K

Publishing Venue

IBM

Related People

Geisinger, CJ: AUTHOR [+2]

Abstract

This technique uses a microprocessor controller to achieve closed-loop precision positioning of the column movements of a surface grinder, wherein the column moves on an oil film disposed on a machine way and is lead-screw driven by a DC servo motor. The microprocessor controls column movement by programming a calibrated count to a preset indexer, which in turn drives the DC motor.

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Closed Loop Precision Positioning on a Surface Grinder

This technique uses a microprocessor controller to achieve closed-loop precision positioning of the column movements of a surface grinder, wherein the column moves on an oil film disposed on a machine way and is lead-screw driven by a DC servo motor. The microprocessor controls column movement by programming a calibrated count to a preset indexer, which in turn drives the DC motor.

A glass scale and digital read-out system having high precision resolution is used to supply positional feedback information to the microprocessor. The positioning accuracy achieved is equivalent to the glass scale resolution. The software is written in the microprocessor machine language and follows the routine of the illustrated flow chart.

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