Workpiece machining method and workpiece machining device
AssigneeShibaura Machine Co., Ltd.
InventorKoji Tsuchiya
Life of this patent
Estimating the term…
Abstract
A workpiece machining device includes a positional deviation correction unit configured to correct a positional deviation of a radius end mill by detecting a positional deviation between a real contour line and an ideal contour line of the radius end mill. The positional deviation correction unit calculates a first correction value configured to make a center of a first arc section formed into an arc shape at a corner portion of the ideal contour line and a center of a second arc section formed into an arc shape at a corner portion of the real contour line to be identical to each other in a plane perpendicular to the rotational axis, and corrects a machining point by the radius end mill using the first correction value.
Claims6
A workpiece machining method for machining a workpiece into a desired shape, comprising:
- holding a radius end mill in a tool holding unit, the radius end mill having a corner portion at a lower end formed into an arc shape in a side view and rotating about a rotation axis to perform cutting of the workpiece;
- detecting a positional deviation between a real contour line, which is a contour line of the radius end mill, and an ideal contour line, which is a contour line of the radius end mill formed into an ideal shape, when the radius end mill is held by the tool holding unit;
- calculating a first correction value configured to make a center of a first arc section formed into an arc shape at a corner portion of the ideal contour line and a center of a second arc section formed into an arc shape at a corner portion of the real contour line to be identical to each other in a plane perpendicular to the rotational axis;
- and
- correcting a machining point by the radial end mill using the first correction value when the cutting is performed.
A workpiece machining device for machining a workpiece into a desired shape, comprising:
- a radius end mill in which a corner portion of a lower end is formed into an arc shape in a side view and rotates about a rotation axis to perform cutting of the workpiece;
- a tool holding unit configured to hold the radius end mill;
- a positional deviation detection unit configured to detect a positional deviation between a real contour line, which is a contour line of the radius end mill, and an ideal contour line, which is a contour line of the radius end mill formed into an ideal shape, when the radius end mill is held by the tool holding unit;
- and
- a positional deviation correction unit configured to correct the positional deviation;
- wherein
- the positional deviation correction unit calculates a first correction value configured to make a center of a first arc section formed into an arc shape at a corner portion of the ideal contour line and a center of a second arc section formed into an arc shape at a corner portion of the real contour line to be identical to each other in a plane perpendicular to the rotational axis, and corrects a machining point by the radius end mill using the first correction value.
Dependencies are inferred from the claim text.