Tool radius compensation system

Details Tool radius compensation system Tool radius compensation system

1983-04-12

1986-02-25

Shoop, Jr., William M.

Electricity: motive power systems

Positional servo systems

Program- or pattern-controlled systems

318570, 318571, G05B 1924

Patent

active

045729980

ABSTRACT:
A system in which the radius of a tool is compensated for in the three-dimensional machining of a workpiece, wherein a tool is offset from a commanded tool path by a distance commensurate with the tool radius. Machining is performed by commanding the contour of the workpiece as a tool path in a prescribed plane sectioning the workpiece, providing the value of the tool radius and the angle of inclination of a machined surface of the workpiece, computing a first tool offset quantity in the prescribed plane and a second tool offset quantity in a direction at right angles to the prescribed plane, based on the radius of the tool and the angle of inclination, compensating for the radius of the tool in the prescribed plane based on the first tool offset quantity, correcting the position of the tool in a direction at right angles to the prescribed plane based on the second tool offset quantity, and machining the workpiece in three dimensions based on the compensated tool radius in the prescribed plane and the corrected tool position in the direction at right angles to the prescribed plane.

REFERENCES:
patent: 3007096 (1961-10-01), Tripp
patent: 3148317 (1974-09-01), Tripp
patent: 3766369 (1973-10-01), Watanabe et al.
European Search Report, completed 7/25/83, by Examiner Ressenaar, at The Hague.

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