Cutting device, processing apparatus, molding die, optical element and cutting method
First Claim
Patent Images
1. A cutting device comprising:
- a cutting tool for vibration cutting includinga tip having a cutting edge; and
a shank made of a ceramic for holding the tip;
the cutting device further comprising;
a support body for supporting the shank of the cutting tool and for transmitting vibration to the cutting tool;
a fastening member for fastening to fix the cutting tool to the support body; and
a cushioning member between the shank and a head portion of the fastening member, the cushioning member being formed of a material having lower hardness than hardness of a body material of the shank and having lower hardness than hardness of a body material of the fastening member.
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Accused Products
Abstract
In a cutting tool, a shank is a support member made of ceramics and although it is light, it is hardly bent. Further, a processing tip made of a diamond having a cutting edge and is fixed to the tip portion of the shank by an active metal method or brazing. The shank is fixed so as to be pressed to the bottom surface of a slit-shaped groove formed in a fixing portion by a fixing screw and a washer. In this case, the washer is a ring-shaped member transforming as a cushioning member and prevents the fastening stress by the fixing screw from locally concentrating.
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Citations
15 Claims
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1. A cutting device comprising:
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a cutting tool for vibration cutting including a tip having a cutting edge; and a shank made of a ceramic for holding the tip; the cutting device further comprising; a support body for supporting the shank of the cutting tool and for transmitting vibration to the cutting tool; a fastening member for fastening to fix the cutting tool to the support body; and a cushioning member between the shank and a head portion of the fastening member, the cushioning member being formed of a material having lower hardness than hardness of a body material of the shank and having lower hardness than hardness of a body material of the fastening member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification