Patent ID: 9016988
Filing Date: 2015-04-28
Classification: B23B,B23C,B23Q,Y10T

Abstract:
1. A tool holder comprising: a vibration-minimizing part for minimizing vibration generated in a tool when the tool is used to perform machining, the vibration-minimizing part being provided, on a distal-end side, with tool-holding means for detachably securing the tool and provided, on a proximal-end side, with a shank part to be mounted on a spindle of a machine tool; a plurality of reinforcing parts extending in an axial direction of the tool holder provided in a radial direction to a peripheral section of the tool holder; accommodating recesses for accommodating a vibration-damping material provided between the reinforcing parts; the vibration-damping material filling the accommodating recesses so that friction between the vibration-damping material and surfaces of the reinforcing parts converts vibration energy into heat energy; and the vibration-damping material and the reinforcing parts constituting the vibration-minimizing part.