Vibration body for cutting, processing device, molding die and optical element
First Claim
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1. A vibration body for cutting comprising:
- a fixing portion for fixing a cutting tool for vibration cutting; and
a vibration body main part for transmitting a bending vibration and an axial vibration to the cutting tool fixed to the fixing portion,wherein, with respect to a profile of a cross sectional plane perpendicular to an axial direction of the vibration body main part in a supporting base region which is a portion between a cross sectional plane perpendicular to the axial direction of the vibration body main part at a closest node position where a node closest to the fixing portion is located, the closest node being among nodes relating to the bending vibration formed in the vibration body main part and a cross sectional plane perpendicular to the axial direction of the vibration body main part at a cutting tool rear end position where an end of the fixed cutting tool, which is closest to the closest node position is located, a length of the profile in a direction perpendicular to a prescribed bending vibration direction of the vibration body main part is longer than a length of the profile in the prescribed bending vibration direction.
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Abstract
In the assembly of vibration body, the first width in the lateral direction (X axis direction) is greater than the second width in the longitudinal direction (Y axis direction) in the cross sectional form perpendicular to Z axis of the first portion on the tip side from the closest node position, thereby, the rigidity of a vibration body main part in the X axis direction can be enhanced, and lateral bending vibrations on fixing portion can be restrained. Consequently, an object can be processed highly accurately by the assembly of vibration body that is controlled with a high precision.
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Citations
15 Claims
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1. A vibration body for cutting comprising:
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a fixing portion for fixing a cutting tool for vibration cutting; and a vibration body main part for transmitting a bending vibration and an axial vibration to the cutting tool fixed to the fixing portion, wherein, with respect to a profile of a cross sectional plane perpendicular to an axial direction of the vibration body main part in a supporting base region which is a portion between a cross sectional plane perpendicular to the axial direction of the vibration body main part at a closest node position where a node closest to the fixing portion is located, the closest node being among nodes relating to the bending vibration formed in the vibration body main part and a cross sectional plane perpendicular to the axial direction of the vibration body main part at a cutting tool rear end position where an end of the fixed cutting tool, which is closest to the closest node position is located, a length of the profile in a direction perpendicular to a prescribed bending vibration direction of the vibration body main part is longer than a length of the profile in the prescribed bending vibration direction. - View Dependent Claims (2, 3, 4, 5, 8, 9, 10, 11, 12, 13, 14, 15)
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6. A vibration body for cutting comprising:
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a fixing portion for fixing a cutting tool for vibration cutting; and a vibration body main part for transmitting a bending vibration and an axial vibration to the cutting tool fixed to the fixing portion, wherein a resonance frequency of a longitudinal bending vibration in a prescribed bending vibration direction of the vibration body main part differs from a resonance frequency of a lateral bending vibration perpendicular to the prescribed bending vibration direction.
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7. A vibration body for cutting comprising:
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a fixing portion for fixing a cutting tool for vibration cutting; and a vibration body main part for transmitting a bending vibration and an axial vibration to the cutting tool fixed to the fixing portion, wherein an antinode of a longitudinal bending vibration in a prescribed bending vibration direction of the vibration body main part is formed in the fixing portion or a vicinity of the fixing portion and an antinode of a lateral bending vibration perpendicular to the prescribed bending vibration direction is formed in a portion except in the fixing portion and the vicinity of the fixing portion.
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Specification