Method and device for vibration control
AssigneeStaffansboda Compagnie AB
InventorsIngvar Claesson, Thomas Lago, Lars Hakansson
Life of this patent
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Abstract
A device and method for vibration control in a machine for cutting, said machine comprising a cutting tool supported by a tool holder. The device comprises a control unit and converting means which are connectible to the control unit and comprise a vibration sensor and an actuator. The actuator comprises an active element which converts an A.C. voltage supplied by the control unit to the actuator into dimensional changes. Said active element is adapted to be embedded in the body of the tool holder and in such manner that said dimensional changes impart bending to the body of the tool holder.
Claims22
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.
A tool holder which is adapted to support a tool for cutting, the tool holder being a teeth holder and comprising at least one actuator, said actuator comprising, active elements which are helically arranged around the center axis of the teeth holder, which is electrically controlled to generate changes in a dimension of said active element, wherein said active element is embedded in the body of the tool holder so as to be covered and imparts, through said changes in dimension, bending moments to the body of the tool holder.
A tool holder which is adapted to support a tool for cutting, the tool holder comprising an actuator, said actuator comprising an active element, which is electrically controlled to generate changes in a dimension of said active element, wherein said active element is embedded in the body of the tool holder and imparts, through said changes in dimension, bending moments to the body of the tool holder;
- said tool holder being arranged to be mounted in a machine for boring, 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.
Dependencies are inferred from the claim text.