Machine tool tracing system
AssigneeGettys Manufacturing Company, Inc.
InventorsRobert E. Tryber, George A. Hoffman
Life of this patent
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Abstract
A velocity control for a machine tool tracing system reduces the operating speed of the system in response to a rapid change of phase angle in the tracing stylus deflection produced, for example, when tracing the contour of a sharp angle or inside corner of a template.
Claims8
A control system wherein a stylus traces a contour around a template, and wherein the template moves relative to the stylus in response to deflection of the stylus by moving contact with the template, comprising means for detecting a rate of change of the deflection angle of the stylus from said template, and means for producing a signal for controlling the magnitude of the velocity of said template relative to said stylus in response to the rate of change of deflection angle.
For use in a machine tool tracing system wherein means are provided for moving a stylus around a template at an operating speed in response to deflection of the stylus from the template, a speed control circuit, comprising means for producing a signal indicative of a rate of change of deflection angle of the stylus from said template, and means for altering said operating speed in response to said signal.
A machine tool tracing system wherein a stylus traces a contour around a template in a working plane, comprising means for moving the stylus relative to the template at an operating speed in the working plane, means for producing a deflection signal having a phase angle indicative of the direction of stylus deflection in the working plane, means for deriving a speed control signal in response to the rate of change of the phase angle of said deflection signal, and means for altering the operating speed of the moving means in response to said speed control signal.
A process for automatically tracing a contour around a template with a stylus, comprising moving the template at an operating speed relative to the stylus in response to deflection of the stylus from the template, producing a signal indicative of a rate of change of deflection angle of the stylus from said template, and altering said operating speed in response to the rate of change of deflection angle.
Dependencies are inferred from the claim text.