Patent ID: 9168594
Filing Date: 2015-10-27
Classification: B23B,B23C,B23Q,Y10T

Abstract:
1. A toolholder, comprising: a tool spindle, a cutting head portion for supporting a cutting tool, and a body portion disposed between the tool spindle and the cutting head portion, the body portion including a top wall, a bottom wall, and a pair of opposing side walls; an absorber mass externally mounted to the body portion of the toolholder, the absorber mass including a top wall and a bottom wall, the bottom wall having one or more recesses formed therein; a spacer disposed within each recess formed in the bottom wall of the absorber mass; one or more resilient members disposed between the body portion and the absorber mass; one or more resilient members disposed between the absorber mass and the spacer; and a clamping bolt passing through each spacer, through the absorber mass and threaded into the body portion of the toolholder, wherein a rigidity of the one or more resilient members can be selectively adjusted by the clamping bolt so as to tune the absorber mass for optimum dampening of vibration of the toolholder.