Class / Patent application number | Description | Number of patent applications / Date published |
409141000 | With means to dampen vibration | 11 |
20080260483 | Tool holder dampening system - A tool holder for use in a rotating spindle of a milling machine. The tool holder comprises a conically tapered shank portion for insertion into the spindle and a cutting tool mounting portion. Disposed between the shank and mounting portions is a flange portion. The flange portion includes a continuous channel formed therein which circumvents the shank portion and is adapted to accommodate a dampening member. The dampening member is compressable between the flange portion and the spindle when the tool holder is inserted into the spindle, and is adapted to eliminate harmonic resonance attributable to the use of the tool holder with a cutting tool. | 10-23-2008 |
20100074704 | METHOD OF MANUFACTURING AND REFINISHING INTEGRALLY BLADED ROTORS - A method of forming integrally bladed rotors for gas turbines is described. The method includes drilling in a workpiece material recesses defining flow passages and rotor blades, performing a coarse milling step to refine surfaces of the rotor blades, and filling the recesses between the rotor blades with a damping material, thus encasing the rotor blades in the damping material. The method further includes performing a finishing milling step to remove the damping material and the workpiece material on surfaces of the rotor blades, while maximizing a damping effect of the damping material on the rotor blades. To maximize the damping effect, the finishing milling tool moves along a path that preferentially mills one surface of a blade while the other surface is in contact with the damping material. | 03-25-2010 |
20100178123 | MACHINE TOOL - The invention relates to a machine tool, wherein the machine tool ( | 07-15-2010 |
20100178124 | MACHINE TOOLS WITH NON-RIGID ROBOT DEVICE USING INERTIAL STIFFENING - A representative machine comprises a non-rigid robotic device having a tool head; and a rigid inertial stiffening system that is part of a tool head and includes a mass to provide precise position of the tool head. The rigid inertial stiffening system achieves high positional precision of the tool head, in the face of large disturbing forces by locally accelerating the mass to counter the disturbing forces. | 07-15-2010 |
20110070043 | DAMPENED SPINDLE CARTRIDGE AND SPINDLE ADAPTOR - A dampened spindle cartridge and a dampened spindle adaptor are provided for damping tool vibrations during operation of a machine tool. Damping media is arranged inside a cavity formed within the spindle adaptor or the spindle cartridge. The damping media may be a solid aggregate, such as steel shot or sand, or a viscous fluid, such as oil. The damping media attenuates and/or converts tool vibrations into friction and heat, thereby dissipating vibration energy generated during cutting operations performed by the machine tool and prevents reinforcement of the forced vibration. | 03-24-2011 |
20110081216 | SPINDLE DEVICE FOR MACHINE TOOL - The damping property of a rear rolling bearing ( | 04-07-2011 |
20110255932 | DAMPING INSERT FOR TOOL HOLDER - A tool holder for a cutting and/or milling machine includes a shank portion configured to be attached to a spindle of the cutting and/or milling machine for mounting the tool holder, and a tool mounting portion for mounting a tool to the tool holder. The tool holder includes a cavity through the shank portion and/or the mounting portion, the cavity being aligned to the rotation axis of the tool holder. The tool holder includes a damping material disposed within the cavity for mitigating harmonic resonance during operation of the cutting and/or milling machine. The damping member may be used in all types and configurations of tool holders. | 10-20-2011 |
20120207560 | TOOL HOLDER - To provide a tool holder that is capable of exerting a vibration-minimizing effect in a reliable manner using a simple configuration and that is extremely useful for practical application. A tool holder comprising a vibration-minimizing part for minimizing vibration generated in a tool ( | 08-16-2012 |
20140105701 | ANTI-VIBRATION MEMBER AND CUTTING TOOL - An anti-vibration member is provided which includes a member main body having rubber elasticity or viscoelasticity and can be mounted on an outer surface of a tool main body by a frictional force against the outer surface. | 04-17-2014 |
20150321268 | MACHINE TOOLS - A representative machine comprises a non-rigid robotic device having a tool head; and a rigid inertial stiffening system that is part of a tool head and includes a mass to provide precise position of the tool head. The rigid inertial stiffening system achieves high positional precision of the tool head, in the face of large disturbing forces by locally accelerating the mass to counter the disturbing forces. | 11-12-2015 |
20220134501 | VIBRATION DAMPING SYSTEM AND METHOD FOR ESTIMATING CUTTING FORCE OF MACHINE TOOL USING SAME - The present disclosure relates to a vibration damping system and a method for estimating a cutting force of a machine tool using the same, and according to the present disclosure, disclosed is technology including a housing; a stator rotatably positioned at an arbitrary angle in an internal space of the housing; a rotor positioned in a space inside the stator and rotating around an axis of rotation; a spindle rotating with the rotor; a first expander applying an attractive force that pulls the stator when the stator rotates; a second expander applying an attractive force in an opposite direction to the attractive force of the first expander; a first compressor applying a repulsive force that pushes the stator; and a second compressor; to suppress the generation of vibrations of the machine tool, thereby improving machining quality and machining accuracy of a structure. | 05-05-2022 |