Control device and control system for machine tool
AssigneeFanuc Corporation
InventorNobuhito OONISHI
Life of this patent
Estimating the term…
Abstract
A control device that controls polygon turning to simultaneously rotate a workpiece and a tool and form a polygon on a surface of the workpiece acquires information on misalignment in the radial direction of a cutting tool attached to a tool body and generates pluses to correct the misalignment in the radial direction of the cutting tool. Furthermore, the control device outputs the pulses to an X-axis servo motor and moves a tool in the opposite direction to the misalignment in the radial direction of the cutting tool. Accordingly, the misalignment in the radial direction of the cutting tool is corrected, and thereby the precision of the polygon turning is improved.
Claims5
A control device that controls polygon turning to simultaneously rotate a workpiece and a tool and form a polygon on a surface of the workpiece, the control device comprising:
- a workpiece axis command generation unit that generates a command for an angular velocity of the workpiece;
- a tool axis command generation unit that generates a command for an angular velocity of the tool;
- a deviation acquisition unit that acquires information on misalignment in a radial direction of a cutting tool attached to the tool;
- an adjustment amount generation unit that, based on the information on the misalignment in the radial direction of the cutting tool input to the deviation acquisition unit, generates a pulse to adjust any one or both of a position of a tool axis and a position of a workpiece axis;
- and
- an adjustment amount command unit that outputs the pulse.
A control system that controls polygon turning to simultaneously rotate a workpiece and a tool and form a polygon on a surface of the workpiece, the control system comprising:
- a workpiece axis command generation unit that generates a command for an angular velocity of the workpiece;
- a tool axis command generation unit that generates a command for an angular velocity of the tool;
- a deviation acquisition unit that acquires information on misalignment in a radial direction of a cutting tool attached to the tool;
- an adjustment amount generation unit that, based on the information on the misalignment in the radial direction of the cutting tool acquired by the deviation acquisition unit, generates a pulse to adjust any one or both of motion of a tool axis and motion of a workpiece axis;
- and
- an adjustment amount command unit that moves both or any one of the workpiece axis and the tool axis.
Dependencies are inferred from the claim text.