Method and apparatus for involute interpolation
AssigneeFanuc Corporation
InventorsHideaki Kawamura, Kentaro Fujibayashi, Masafumi Sano
Life of this patent
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Abstract
An involute interpolation method for a computerized numerical control apparatus having a rotational axis and a linear axis is effected by giving commands for a direction in which an involute curve (IC) rotates, the position of the center of a base circle (BC), and the radius (R) of the base circle, and interpolating the involute curve (IC) according to the commands. Interpolated distances are converted to those along the rotational axis and the linear axis for the control of a machine tool (9).
Claims5
An involute interpolation method for a computerized numerical control apparatus having a rotational axis and a linear axis, comprising the steps of:
- giving commands for a direction in which an involute curve rotate, a position of the center of a base circle, and a radius (R) of the base circle;
- interpolating the involute curve and a distance along a Z-axis according to the commands;
- and
- controlling the rotational axis and the linear axis of a machine in response to said interpolating step.
An involute interpolation apparatus for a computerized numerical control apparatus having a rotational axis and a linear axis, comprising:
- means for providing commands which define a two-dimensional involute curve, the commands comprising a direction in which an involute curve rotates, a position of a center of a base circle for locating the involute curve in a two-dimensional plane, and a radius (R) of the base circle which defines a size of the involute curve in the two-dimensional plane;
- means for interpolating the involute curve according to the commands;
- and
- means for controlling the rotational axis and the linear axis according to the involute curve.
An involute interpolation method for a computerized numerical control apparatus having a rotational axis and a linear axis, comprising the steps of:
- giving commands which define an involute curve;
- interpolating the involute curve in X and Y dimensions according to said commands to provide interpolated values;
- converting the interpolated values in the X and Y dimensions into R and C dimensions to provide converted interpolated values;
- and
- controlling said rotational axis and said linear axis according to said transformed interpolated values.
Dependencies are inferred from the claim text.