Vibration reduction device for machine tool
AssigneeMurata Machinery, Ltd.
InventorMitsunori HIROSE
Life of this patent
Estimating the term…
Abstract
A vibration reducing device for a machine tool reduces vibration generated in a tool support body supporting a tool. The vibration reducing device includes an attenuation inducing member and a pressing and fitting mechanism. The attenuation inducing member is brought into contact with the tool support body so as to generate a frictional force in a direction in which it acts as a resistance to the vibration generated in the tool support body. The attenuation inducing member has a rigidity in a direction conforming to a contact surface between the attenuation inducing member and the tool support body, which rigidity is higher than that of the tool support body. The pressing and fitting mechanism fits the attenuation inducing member to the tool support body in a pressed condition.
Claims4
A vibration reducing device for a machine tool to reduce vibration generated in a tool support body to support a tool, the vibration reducing device comprising:
- an attenuation inducing member that is configured to be brought into contact with the tool support body so as to generate a frictional force in a direction in which it acts as a resistance to the vibration generated in the tool support body, the attenuation inducing member having a rigidity in a direction conforming to a contact surface between the attenuation inducing member and the tool support body, which rigidity is higher than that of the tool support body;
- and
- a pressing and fitting mechanism configured to fit the attenuation inducing member to the tool support body in a pressed condition;
- wherein
- the tool support body includes a turret-shaped tool post of a round or polygonal shape having a peripheral surface to which the tool is fitted;
- the attenuation inducing member contacts a front surface of the tool support body over the entire periphery about a center axis of the tool support body;
- and
- the rigidity of the attenuation inducing member in the direction conforming to the contact surface is a rigidity in a radial direction of the turret-shaped tool post.
(canceled)
A vibration reducing device for a machine tool to reduce vibration generated in a tool support body to support a tool, the vibration reducing device comprising:
- an attenuation inducing member that is brought into contact with the tool support body so as to generate a frictional force in a direction in which it acts as a resistance to the vibration generated in the tool support body, the attenuation inducing member having a rigidity in a direction conforming to a contact surface between the attenuation inducing member and the tool support body, which rigidity is higher than that of the tool support body;
- and
- a pressing and fitting mechanism configured to fit the attenuation inducing member to the tool support body in a pressed condition;
- wherein
- the attenuation inducing member includes a first spring member seating surface that is parallel or substantially parallel to a contact surface between the tool support body and the attenuation inducing member, and the pressing and fitting mechanism includes a second spring member seating surface that confronts the first spring member seating surface;
- the vibration reducing device further comprising:
- a fitting member fitted to the tool support body;
- and
- a spring member interposed between the first spring member seating surface and the second spring member seating surface and configured to press the attenuation inducing member against the tool support body.
Dependencies are inferred from the claim text.