Machining apparatus and machining method
AssigneeToyota Jidosha Kabushiki Kaisha
InventorHiroki Nonaka
Life of this patent
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Abstract
A machining apparatus for machining a workpiece by rotating and revolving either the workpiece or a tool 1 to contact with each other. The machining apparatus comprises rotation/revolution ratio setting motors M1 and M3 for setting a ratio of a number of rotations to a number of revolutions of the workpiece or the tool 1, to a numerical value having a fraction below a decimal point, by changing the number of revolutions. The workpiece is machined by setting the number of revolutions and the number of rotations at the ratio.
Claims12
A machining apparatus for machining a workpiece, comprising:
- means for rotating and revolving a tool to contact the workpiece;
- ratio changing means for changing a ratio between a number of rotations of the tool and a number of revolutions of the tool;
- and
- rotation-and-revolution setting means for setting said ratio such that said tool rotates plural times while revolving one turn so that ridges of undulations, as made on a worked surface, overlap valleys of the undulations, as formed in the worked surface during a subsequent revolution.
A machining method for machining a workpiece, comprising steps of:
- providing a machining apparatus comprising means for rotating and revolving a tool to contact the workpiece, and changing means for changing a ratio of a number of rotations of the tool to a number of revolutions of the tool;
- and
- setting said ratio such that the tool rotates plural times while revolving one turn so that ridges of undulations, as made on a worked surface, overlap valleys of the undulations, as formed in the worked surface during a subsequent revolution.
A machining apparatus for machining a workpiece, comprising:
- means for rotating and revolving the workpiece to contact a tool;
- ratio changing means for changing a ratio between a number of rotations of the workpiece and a number of revolutions of the workpiece;
- and
- rotation-and-revolution setting means for setting said ratio such that said workpiece rotates plural times while revolving one turn so that ridges of undulations, as made on a worked surface, overlap valleys of the undulations, as formed in the worked surface during a subsequent revolution.
A machining method for machining a workpiece, comprising steps of:
- providing a machining apparatus comprising means for rotating and revolving the workpiece to contact a tool, and changing means for changing a ratio for a number of rotations of the workpiece to a number of revolutions of the workpiece;
- and
- setting said ratio such that the workpiece rotates plural times while revolving one turn so that ridges of undulations, as made on a worked surface, overlap valleys of the undulations, as formed in the worked surface during a subsequent revolution.
Dependencies are inferred from the claim text.