VIBRATION REDUCTION DEVICE FOR MACHINE TOOL

摘要

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.

主权项

1. 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.