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US 5,027,045 AGranted
High-precision pulse interpolation method
AssigneeFanuc Corporation
InventorTakashi Iwagaya
Life of this patent
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Abstract
A high-precision pulse interpolation method for interpolating the amount of movement of individual axes of a numerical control apparatus (1) with high precision. An interpolation pulse is output twice or more in one task and is written into a shared RAM (2). A servo control circuit (3) outputs the interpolation pulses in the shared RAM at regular intervals, to control a servometer (5) with a high-precision pulse interpolation.
Claims4
A high-precision pulse interpolation method in which an amount of movement of individual axes of a numerical control apparatus is interpolated with high precision, said method comprising the steps of:
- (a) determining whether the mode is a high speed interpolation mode;
- (b) interpolating during an interpolation task period when a high speed interpolation mode is determined and setting an interpolation period;
- (c) interpolating in accordance with the interpolation task period when a high speed interpolation mode is not determined, the interpolation period being equal to the interpolation task period;
- and
- (d) carrying out the high speed interpolation.
2 more elements
Dependencies are inferred from the claim text.