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US 2015/0328698 A1Published application
Rotary tool holder
AssigneeJtekt Corporation
InventorsHisashi Otani, Hiroyuki Nakano, Shigeru Matsunaga, Ryota Tanase
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Abstract
A rotary tool holder is provided which enables effective suppression of possible chattering vibration when a workpiece is machined using a rotary tool. A tool holder that is a rotary tool holder includes a main body that rotates while holding a rotary tool, an additional mass supported by the main body with a radial gap, a fluid path provided in the main body, and a viscoelastic damper configured by a fluid fed to the radial gap between the main body and the additional mass via the fluid path.
Claims20
A rotary tool holder comprising:
- a main body that rotates while holding a rotary tool;
- an additional mass supported by the main body with a radial gap between the additional mass and the main body;
- a fluid path provided in the main body;
- and
- a viscoelastic damper configured by the radial gap between the main body and the additional mass and a fluid fed to the radial gap via the fluid path.
2 more elements
Dependencies are inferred from the claim text.