| 摘要 |
<p>A system in which the radius (r) of a tool (TL) is compensated for in the three-dimensional machining of a workpiece (WK), wherein a tool (TL) is offset from a commanded tool path (TP2) by a distance commensurate with the tool radius (r). Machining is performed by commanding the contour of the workpiece as a tool path (TP2) in a prescribed plane sectioning the workpiece (WK), providing the value of the tool radius (r) and the angle of inclination (90°-0) of a machined surface (WSF) of the workpiece (WK), computing a first tool offset quantitiy in a direction at right angles to the prescribed plane, based on the radius (r) of the tool (TL) and the angle of inclination (90°-0), compensating for the radius (r) of the tool (TL) in the prescribed plane based on the first tool offset quantity, correcting the position of the tool (TL) in a direction at right angles to the prescribed plane based on the second tool offset quantity, and machining the workpiece (WK) 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.</p> |
