| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 408143000 | TOOL-CARRIER WITH VIBRATION-DAMPING MEANS | 22 |
| 20080298912 | Variable Tuned Holder For Machine Tools - A variable tuned holder for machine tools that attaches to a machine tool to act in a manner similar to a dynamic absorber while the machine tool is used during machining. The natural frequency of the holder may be matched to the natural frequency of the machine tool as the tool is in use to reduce the amplitude of vibration at the cutting end of tool with a workpiece. The present invention is designed to provide an impedance match between the machine tool and the holder such that the cutting energy may escape and/or be dissipated. The flexible holder may be used as one part of an overall system. The system may be designed to be used with tools of different shapes and/or lengths. As the shape and/or length of the machine tool changes, the system may be easily modified to change the natural frequency of the flexible holder to enable the dynamic absorber effect of the flexible holder to occur. The flexible holder may be included in a kit that may be used with a wide range of lengths and/or shapes of machine tools. | 12-04-2008 |
| 20080298913 | Increased Process Damping Via Mass Reduction for High Performance Milling - A cutting tool incorporates a body terminating in cutting edges distal from a chuck mount and having an axial bore for reduced mass to raise from a steel or carbide blank into a cylindrical pipe forming the hollow bore prior to grinding of the cutting edges. Filling of the bore with a light polymer to further absorb vibration can also be employed. | 12-04-2008 |
| 20090003947 | Vibration-Damped Tool Holder - A tool holder ( | 01-01-2009 |
| 20090016835 | Mechanism for Suppressing Grinding-Cutting Vibration - A mechanism for suppressing grinding-cutting vibration comprises a C-shaped base, a fixed support seat, a clamp device and a vibration absorber. Based on vibration absorbing principle of the vibration theory, the clamp device is connected to the movable cutting machine, so as to move along with the cutting machine during the machining operation, and the clamp force applied to clamp the workpiece is adjustable. By such arrangements, the vibration energy produced at the time of cutting the workpiece can be transferred to the vibration absorber through the clamp device, and then a part of the vibration energy will be absorbed by the vibration absorber, thus achieving the objective of reducing vibration of the cut position. | 01-15-2009 |
| 20090110499 | METHOD FOR SUPPRESSING VIBRATION AND DEVICE THEREFOR - The vibration suppressing device includes vibration sensors, a FFT calculating unit, a store device, a calculating unit, and a NC device. The vibration sensors detect a time-domain vibrational acceleration of a rotary shaft during rotating. The FFT calculating unit calculates a frequency of chatter vibration and a frequency-domain vibrational acceleration in the frequency of chatter vibration on the basis of the detected time-domain vibrational acceleration. The store device stores the frequency-domain vibrational acceleration, the frequency of chatter vibration and the like as machining information. When the calculated maximum frequency-domain acceleration exceeds a predetermined threshold value, the calculating unit stores the maximum acceleration, the frequency of chatter vibration, and the like as current machining information in the store device, and calculates an optimal rotation speed of the rotary shaft, by which the chatter vibration can be suppressed, based on the current machining information and previous machining information stored in the store device. The NC device rotates the rotary shaft at the optimal rotation speed. | 04-30-2009 |
| 20090202313 | FLUTTERING PREVENTION DEVICE FOR WORKING MACHINE - Chattering suppression apparatus ( | 08-13-2009 |
| 20090257838 | Tool holder provided with a damping means - The present invention relates to a tool holder, such as a reaming head ( | 10-15-2009 |
| 20100054882 | COUNTERBALANCED BORING TOOL WITH CLAMPING DEVICE - The invention concerns a boring tool comprising a main tool body and a tool holder which is adjustable relative thereto, as well as a counterweight coupled to the tool holder in such a way that upon a movement of the tool holder in one direction a movement of the counterweight occurs substantially in the opposite direction, wherein both the tool holder and also the counterweight are respectively arranged at least in part in a bore in the main tool body. To provide a boring tool of the above-mentioned kind which is suitable in particular for high rotary speeds, which is advantageous in terms of manufacture and which in addition provides a reliable precise balancing function, it is proposed in accordance with the invention that the main tool body has a clamping device, by means of which the main tool body can be elastically deformed so that both the tool holder and also the counterweight are respectively clamped in the bore. | 03-04-2010 |
| 20100061818 | DIAMETER ADJUSTMENT ORIENTED BALANCING SYSTEM - A diameter adjustment oriented balancing system is disclosed for use with small diameter rotary boring heads. The diameter adjustment oriented balancing system includes a rotary boring head with a radially movable tool carrier. The rotary boring head designed to receive a number of removable counterweights in one or more slots precisely aligned in the axis of radial movement of the tool carrier. The diameter adjustment oriented balancing system further comprises a series of boring bars which are designed to be perfectly balanced such that the combination of the rotary boring head and cutting tool holder is perfectly balanced when the center of the cutting tool holder is located at the center of the rotational axis of the rotary boring head. | 03-11-2010 |
| 20100061819 | COUNTERBLANCED BORING TOOL - The invention concerns a boring tool comprising a main tool body and a tool holder which is adjustable relative thereto, as well as a counterweight coupled to the tool holder in such a way that upon a movement of the tool holder in one direction a movement of the counterweight occurs substantially in the opposite direction, wherein both the tool holder and also the counterweight are respectively arranged at least in part in a bore in the main tool body. To provide a boring tool of the above-mentioned kind which is suitable in particular for high rotary speeds, which is advantageous in terms of manufacture and which in addition provides a reliable precise balancing function, it is proposed in accordance with the invention that a tool holder and a counterweight are arranged in the same bore in the main tool body. | 03-11-2010 |
| 20100061820 | TOOL HOLDER - The present invention relates to a tool holder ( | 03-11-2010 |
| 20100310331 | MACHINE TOOL - In a machine tool, a column base ( | 12-09-2010 |
| 20110116883 | Damper for a Cutting Tool - A cutting tool includes a blade, a seat, a shank and a damper. The blade is connected to the seat. The seat is connected to the shank. The shank includes a pocket defined therein and a thread formed on the wall of the pocket. A damper is inserted in the pocket. The damper includes a thread formed on the periphery for engagement with the thread of the shank, with a small gap defined between the threads. | 05-19-2011 |
| 20110318127 | Tool Holder Equipped with a Damping Means and Comprising a Device for Preventing Excessive Heating of the Damping Means - A tool holder ( | 12-29-2011 |
| 20120003055 | ANTI-VIBRATION TOOL HOLDER - A tool holder is provided that prevents chattering in a large-sized cutting tool. A tool holder | 01-05-2012 |
| 20120121349 | NEW PRODUCT AND METHOD FOR ITS MANUFACTURE WITHIN MATERIAL PROCESSING - The present invention provides an appliance for chip removal applications comprising a vibration-damping material wherein the vibration-damping material is a material arranged by nano-dimensional cluster form. The present invention additionally provides a method for manufacturing said appliance. The present invention provides also an appliance obtainable by said method. Additionally the present invention provides an article or work piece for use in an appliance for chip removal applications. Also a computer program is provided for controlling the above method. | 05-17-2012 |
| 20130058733 | ROD-SHAPED TOOL HOLDER FOR ATTACHING CUTTING BITS AT NODES - The present invention relates to a rod-shaped tool holder ( | 03-07-2013 |
| 20130064618 | AUTOBALANCING SYSTEM FOR BORING TOOL AND BORING TOOL INCORPORATING SAME - A boring head comprises a housing disposed about a central longitudinal axis and a movement transmission mechanism disposed at least one of on or in the housing. The housing includes a first end adapted to be coupled to a machine tool and an opposite second end having a cutting insert movably coupled thereto. The movement transmission mechanism comprises a rotatable member mounted to be rotatable relative to the housing, a balancing mass, and a main shaft disposed in the housing. The main shaft is rotatable about the longitudinal axis and operationally coupled to the ring, the balancing mass, and the cutting insert. Rotation of the rotatable member a predetermined amount causes movement of the cutting insert a corresponding predetermined amount in a first radial direction with respect to the longitudinal axis and movement of the balancing mass a corresponding predetermined amount in a second radial direction opposite the first radial direction. | 03-14-2013 |
| 20140169900 | Vibration damper for hole machining apparatus - A vibration damper for a drill tube of a hole machining apparatus includes a closed loop bi-directional adjustment mechanism, which operates from a single side of the damper. The closed loop mechanism ensures that the position of the clamping sleeve has a one-to-one relationship with the adjustment mechanism, which enables controlled adjustment of the clamping force to be performed. Locating the adjustment mechanism at one side of the clamping sleeve facilitates re-tooling, e.g. replacing the clamping sleeve if a larger diameter drill tube is to be used. | 06-19-2014 |
| 20150375304 | Vibration Absorber with High Viscous Dampening - A tunable or tuned boring tool having a dynamic vibration absorber is provided herein. The boring tool includes a boring bar having a distal portion configured to support a tool, a proximal portion configured for attachment to a support structure of a metalworking machine, and a cylindrical body extending between the proximal portion and the distal portion, having an elongated cavity therein. The boring tool further includes a tuned or tunable absorber inserted in the cavity of the boring bar. The absorber includes an absorber mass, an annular or partially annular support circumscribing each end of the absorber mass for holding the absorber mass within the cavity, and a layer of fluid restricting material surrounding at least a central portion of the absorber mass for dampening vibration of the absorber mass. A method of forming a boring tool with a dynamic vibration absorber is also provided herein. | 12-31-2015 |
| 20150375305 | Optimized Vibration Absorber - A tuned or tunable boring tool includes a boring bar defining an elongated cavity therein. A distal end of the boring bar is configured to support a tool or cutting insert. The boring tool further includes a dynamic vibration absorber inserted within the elongated cavity of the boring bar. The dynamic vibration absorber includes a mass that vibrates in conjunction with vibration of the boring bar. The mass has a proximal end and a distal end. The dynamic vibration absorber further includes at least one resilient proximal support positioned adjacent to and supporting the proximal end of the mass and at least one distal resilient support positioned adjacent to and supporting the distal end of the mass. The at least one proximal support and at least one distal support have a different stiffness. | 12-31-2015 |
| 20160199918 | DAMPING ELEMENTS FOR TOOL CHUCKING SYSTEMS | 07-14-2016 |
