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| Number | Title | Issue Date |
| 7661912 | Tool having damper Disclosed herein is the structure of a damper that is capable of improving the degree of freedom in design to optimize the damping characteristics of the damper and is capable of allowing the damper to be easily optimized and manufactured for a wide variety of dynam... | 02/16/2010 |
| 7455487 | Gyration balancing calibration free high-speed boring tool A gyration balancing calibration fee high-speed boring tool, allowing fast replacement for boring bar bodies of different bore sizes, includes an adapter and a boring bar body; a micro-eccentric bore on the adapter to accommodates a pivoting shaft; a V-shaped ring g... | 11/25/2008 |
| 7427179 | Damping products and processes Products and processes for forming assemblies are disclosed. One product described comprises a first element having a structured surface adapted to be coupled with a second element. ... | 09/23/2008 |
| 7393164 | Dynamic balancing ring for cutter holder The present invention provides a dynamic balancing ring for a cutter holder for balancing the cutter holder. The dynamic balancing ring includes a circle, plural fixing elements and an adjusting element. The plural fixing elements are used for fixing the circle on t... | 07/01/2008 |
| 7351017 | Solid drill bit for machine tools A solid drill bit for machine tools has a drill bit body and two indexable inserts arranged at a radial distance from one another in respective insert seats. The inserts have an essentially quadratic contour. Their front-end main cutting edges project axially beyond... | 04/01/2008 |
| 7340985 | Method and device for vibration control 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 ... | 03/11/2008 |
| 7309194 | Variable radius balanced boring head One or more embodiments of the invention enable a boring head to hold a boring tool at an adjustable offset from the axis of rotation in a balanced configuration while maintaining stability when rotating at high speed. The apparatus comprises a boring head body, a b... | 12/18/2007 |
| 7234379 | Device and a method for preventing or reducing vibrations in a cutting tool An arrangement for reducing vibrations in a tool holder (4) with a cutting tool (3) and has a vibration sensor on the tool holder (4) that is connected to a guide unit (11). The tool holder (4) has further two piezo-electric actuat... | 06/26/2007 |
| 7223055 | Structure for supporting the spindle in a machine tool and method for the manufacture thereof A support structure or sleeve for the spindle of a machine tool consists of a tubular casing, preferably made of sheet steel with a high modulus of elasticity, in contact with a layer of agglomerate obtained by casting inside the casing a mixture formed by a granula... | 05/29/2007 |
| 7201546 | Machine tool and method for computing attachment position of balancer in machine tool When a rotary table rotates, a main control section of a multi-tasking machine detects vibration of the rotary table on which a workpiece is mounted based on fluctuation of a position droop computed by a servo system. The main control section computes the arrangemen... | 04/10/2007 |
| 7201542 | Solid drill bit for machine tools A solid drill bit for machine tools. has a bit body and two movable inserts located a radial distance apart in insert seats of the bit body. The inserts have a rectangular or quadratic contour, project axially over the bit body with their major cutting edges and ove... | 04/10/2007 |
| 7134818 | Tool-holding system for high-accuracy calibration of holes The invention relates to the field of toolings for high-accuracy finishing through-holes and non-through-holes, such as for example for calibration, lapping operations. More precisely the invention refers to a tool-holding system for high-accuracy calibration of the... | 11/14/2006 |
| 7131797 | Tool holder A tool holder has a cutter arbor. The cutter arbor has a shank portion detachably mounted on a spindle, and a mechanism for holding a cutting tool. In the cutter arbor portion, a cavity portion is formed. In the cavity portion, a vibration damping material is filled... | 11/07/2006 |
| 7125211 | Apparatus and method for damping vibration in a machine tool A machine tool for performing a machine tool function including components adapted to cooperate with each other to execute the machine tool function. The machine tool has a number of constituent parts and a number of sheets of damping material. Each component includ... | 10/24/2006 |
| 7066693 | Device for connecting two tool parts The invention relates to a device for releasably connecting two coaxially aligned tool parts (1, 2) which can be axially pressed against each other on separating surfaces (36, 38) that face each other with a clamping device. According to the invention,... | 06/27/2006 |
| 7059809 | Cutting tool A cutting tool, in particular for the turning out of drillings, has a clamping piece (10) for fixing the tool in a clamp holder. The clamping piece (10) includes two clamping surfaces (30), which converge on each other in the direction of the on... | 06/13/2006 |
| 7029214 | Linear guide apparatus There is provided a linear guide apparatus which, owing to the use of a gap-free braking device in a rolling guide, has a sufficiently high damping capacity. The linear guide apparatus for guiding a linear motion of a movable body along a guide rail on a fixed struc... | 04/18/2006 |
| 7029209 | Slidable boring tool with fine adjustment Methods and apparatus for fine adjustment of the position of the cutting tool. In one embodiment, a boring tool includes a coupling member driven by a CNC boring machine, a cutting tool which is slidably coupled to the coupling member, and a slidable adjustment memb... | 04/18/2006 |
| 7028997 | Vibration damping tool A vibration damping tool having the following structure is provided. In the vibration damping tool, a hollow portion is formed in the interior of the distal end portion of a tool body and one end of a weight member is connected to the inner wall surface of the dista... | 04/18/2006 |
| 6968599 | Pliable handle A pliable handle for a hand-held device is provided. The handle includes a core member, an outer sheath disposed about the core member, and gel disposed between the core member and the outer sheath. The outer sheath is deformable, such that when a hand grips the pli... | 11/29/2005 |
| 6943633 | Widely tunable ring oscillator utilizing active negative capacitance A ring oscillator that uses active negative capacitance at one or more stages of the ring oscillator to adjust the frequency of oscillation. By using a negative capacitance generator, negative capacitance may be placed in shunt with each stage of the ring, thereby r... | 09/13/2005 |
| 6935816 | High stiffness composition tool bar The present invention is to provide a machining tool bar in which mechanical machining properties are improved by using high stiffness composite material. According to the present invention, the tool bar includes an adaptor constructed to be coupled to a driv... | 08/30/2005 |
| 6929431 | Vibration-dampened tool for working in metallic material A drill for working in metallic materials includes a tool body having located in its front end at least one cutting insert, wherein the tool body is provided with one or several damping elements mounted such that during machining, a relative movement (i.e., sliding ... | 08/16/2005 |
| 6925915 | Method and device for controlling a turning operation A device increases the surface smoothness of a turned surface. The device comprising a control system with a control unit and an actuator connectible to the control unit and connectible with a tool holder. The actuator in adapted to impart a vibrating motion in the ... | 08/09/2005 |
| 6916138 | Vibration dampened drilling tool A drilling tool includes a drill body having chip channel formed therein and carrying cutting inserts at front ends of respective chip channels. Disposed in the chip channels at a location spaced from the cutting insert are respective damping elements. Each damping ... | 07/12/2005 |
| 6779955 | Mechanical contact connection A surface connection between mechanical components having intermediate deformable elements between the connected contact surfaces, shaped as segments of solid or hollow cylinders with straight or curvilinear axes and their cross sections are compressed in the radial... | 08/24/2004 |
| 6761517 | Motorized spindle A motorized device including a first element, a second element, a third element, a fourth element, and a fifth element, wherein in this device the fifth element is constructed around an elongated piece perforated by an axial channel, which elongated piece is referre... | 07/13/2004 |
| 6640410 | Line transfer system with a contour machining head A line transfer system with a contour machining head. The system includes a transmission arbor, a housing, a contour machining head, a driving system, and a system controller. The transmission arbor mounts within the housing, with the transmission arbor a... | 11/04/2003 |
| 6619165 | Tunable toolholder A tunable toolholder with a dynamic vibration absorber wherein an absorber mass is compressed between two resilient supports utilizing at least one longitudinally movable pressure plate to dynamically tune the toolholder. The pressure plate is displaced b... | 09/16/2003 |
| 6599068 | Tool holder A tool holder includes a plurality of elastic engagement pieces arrayed along an outer perimeter of a shank. During and after assembly, the elastic engagement pieces elastically abut at least an inner surface of a tapered hole in a main shaft joined to th... | 07/29/2003 |
| 6554291 | Housing and hub for an apparatus for securing a workpiece to a rotatable machine member A housing and hub for an apparatus for securing a workpiece to a rotatable machine member are provided. The machine may include a lathe. The workpiece includes a rotor such a brake rotor. The apparatus includes a hub slidably engageable with a rotatable d... | 04/29/2003 |
| 6537000 | Tool fixing device in a tool holder A tool fixing device for clamping a tool in a tool holder, wherein the tool holder has a receptacle configured to clamp a shaft of the tool, has at least one static flexible element inserted into a force flow between the tool and the tool holder. The stat... | 03/25/2003 |
| 6530727 | Contour machining head The machining head for machining valve seats comprises a driving system, a housing, a carriage feed assembly, a cutting tip mounted on the carriage, and a counterweight assembly. The driving system rotates a machining head on a spindle axis, and further p... | 03/11/2003 |
| 6471453 | Balancing assembly for a rotating member Briefly, according to this invention, there is provided a balancing assembly for balancing a rotating member and the combination of a rotating member and balancing assembly. The balancing assembly includes an annular ring, a locking member and a cover. Th... | 10/29/2002 |
| 6443673 | Tunable boring bar for suppressing vibrations and method thereof A tunable toolholder with a dynamic vibration absorber is disclosed wherein an absorber mass is compressed between two elastomer supports utilizing at least one longitudinally movable pressure plate to dynamically tune the toolholder.... | 09/03/2002 |
| 6427782 | Noise suppression drilling system The invention encompasses improvements in noise attenuation systems for reducing the audible noise level generated during earth boring operations using a hard surfaced rotary drill bit, and in dual bore-cutting elements for performing sequential first and... | 08/06/2002 |
| 6419427 | Adjustable rotary tool providing a counter balanced system The invention of this patent is an adjustable rotary tool counter balanced system. The invention provides for balancing weights that are mounted to a cutting tool body to provide a means to compensate for a rotational balance error induced by the variable... | 07/16/2002 |
| 6382888 | Vibration dampened spindle and tool holder assembly A vibration dampened spindle and tool holder assembly for a rotary cutting machine. The assembly includes a spindle and a tool holder retained therewith. The tool holder has an interfacing ledge with a top surface for abutment with a distal spindle surfac... | 05/07/2002 |
| 6364581 | Balancer A tool holder assembly 10 including a tool holder 12 having a balancer assembly 21 adapted to selectively provide improved unbalance compensation.... | 04/02/2002 |
| 6345942 | Method and apparatus for mitigating vibration associated with rotary cutting machine A method and apparatus mitigates vibration associated with the rotary cutting machines by providing a first dampening member which is disposed around a tool holder and positioned so as to be compressed intermediate the tool holder and spindle of the rotar... | 02/12/2002 |
