Patent ID: 7340985
Filing Date: 2008-03-11
Classification: B23B,B23Q,Y10S,Y10T

Abstract:
1. A device for vibration control in a machine for cutting, said machine comprising a cutting tool supported by a tool holder, the device comprising a control unit and converting means which are connected to the control unit and comprise a vibration sensor and an actuator, and the actuator comprising an active element, which converts an A.C. voltage supplied by the control unit to the actuator into changes in a dimension of said active element, wherein said active element is embedded in the body of the tool holder, and wherein said active element is embedded in such manner that said changes in a dimension impart bending moments to the body of the tool holder; said tool holder being elongated and having an end portion which is received in a mounting recess of the machine, wherein said active element is positioned along the tool holder such that, when the tool holder is held in said recess, a portion of said active element is within said recess.