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Browse Prior Art Database

Surface Contour Generator

IP.com Disclosure Number: IPCOM000084565D
Original Publication Date: 1975-Dec-01
Included in the Prior Art Database: 2005-Mar-02
Document File: 2 page(s) / 104K

Publishing Venue

IBM

Related People

Proper, DS: AUTHOR

Abstract

Complex contours are ground on a workpiece surface by rocking it against a lapping surface in two directions simultaneously. The contour is defined by a transverse radius R(T) and longitudinal radius R(L), each of which may change as the workpiece rocks.

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Surface Contour Generator

Complex contours are ground on a workpiece surface by rocking it against a lapping surface in two directions simultaneously. The contour is defined by a transverse radius R(T) and longitudinal radius R(L), each of which may change as the workpiece rocks.

Longitudinal motion is determined by a bar cam and longitudinal follower which displace a longitudinal yoke, as the yoke is rocked about a longitudinal axis by a longitudinal crank. The longitudinal radius R(L) changes during rocking, because the contact point between the workpiece and lapping surface is farther from the longitudinal axis at the extremes (Fig. 3) of the motion than when the longitudinal yoke is vertical (Fig. 2). Contact between the head and lapping surface is maintained by the compression spring.

Transverse motion is controlled by a transverse cam and follower which displace a transverse arm inside a guide arm as the arm is rocked by a transverse crank. The transverse radius R(T) changes during rocking, because the transverse arm moves the transverse axis in accordance with the transverse cam contour. The spring keeps the transverse follower against the transverse cam.

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