Machining method and a control device for a machine tool
AssigneeMakino Milling Machine Co., Ltd.
InventorsYasunori Masumiya, Kyohei Suzuki, Jun Kanaya
Life of this patent
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Abstract
In this machining method, in which a rotary tool is moved relative to a workpiece and/or the workpiece is moved relative to the rotary tool so as to machine a curved surface on said workpiece, rotation in the direction of said curved surface is added to the workpiece such that the positions of reversal marks left on the curved surface per tool path are dispersed in the direction of said rotation.
Claims9
A machining method implemented with a numerical control (NC) device operative with a machining tool on which a rotating spindle is equipped with a servo-motor under the control of the machining program coupled with the NC device to support process of machining a workpiece, by moving the machining tool relative to the workpiece, the machining method including controller-generated tool paths and feed motors associated with the rotating spindle, using essential feed axes which are indispensable to machine the workpiece and at least one surplus feed axis which is not required to machine the workpiece, the method comprising steps of:
- generating a plurality of curved tool paths based on the essential feed axes;
- and
- machining the workpiece by controlling the at least one surplus feed axis so as to offset reversing positions of feed motors of the essential feed axes along one of the generated tool paths from reversing positions of the feed motors along another of the generated tool paths, so that the reversing positions of the feed motors are dispersed over a machined surface of the workpiece or reversing motions of the feed motors are removed.
Dependencies are inferred from the claim text.