Abstract:
A shrink-fit tool (21) includes a tool and a toolholder, one of the tool (23) and the toolholder (25) having a male shank portion (27) and the other one of the tool (23) and the toolholder (25) having a body portion (29) including female opening (31) forreceiving the shank portion (27), the female opening (31) being adapted to changeinsize upon heating the body portion (29) to receive the shank portion (27) and upon cooling of the body portion (29) to clamp the shank portion (27) by an interference fit. The shrink-fittool (21) also includes a mechanical retention member (33) disposed between the shank portion (27) and the body portion (29) for mechanically retaining the shank portion (27) in the female opening (31) so that the shank portion (27) is in its only predetermined orientation relative to the body portion (29).
Abstract:
A tool holder has a holder (1) on the side of the machine and a holder (2) on the side of the tool. Both holders are coupled with each other with radial clearance so as to turn together by a coupling arrangement (3). The coupling arrangement has a radially movable coupling disk (4) provided with two pairs of mutually perpendicular radial slots. Axial driving tenons (7) of the holder (1) arranged on the side of the machine engage one pair of slots and axial driving tenons (8) of the holder arranged on the side of the tool engage the other pair of slots. The coupling disk (4) is supported on both sides by rollers arranged in roller cages (9) and oriented in the corresponding displacement direction.
Abstract:
The subject matter of the present invention is a floating connection (1) for a tool comprising: - an axial structure (2) a first end (2a) of which forms a connecting interface (3a) with a coupling interface part (4), wherein the connecting interface (3a) with the coupling interface part (4) is formed by a male structure designed to cooperate with a female structure of the coupling interface part (4), the cross section of the female structure being wider than the cross section of the male structure so as to enable a displacement of the axial structure (2) in at least two different directions, and wherein the floating connection (1) also comprises: - a cutting support interface (3b) for supporting a cutting structure (5) mounted at a second end (2b) of the axial structure (2).
Abstract:
A device (100) for capturing, centring, gripping and/or securing an object (140) is disclosed. The device comprises a hub (101) and a ring (102) which are concentric and arranged rotatably relative to each other. On the hub there is at least one first control point (111, 111', 111"), and on the ring there is at least one second control point (112, 112', 112"), which control points are arranged at different axial levels (151,152). At least one tensioning member (121,122,123) is arranged to interact with the at least one first control point and with the at least one second control point during the rotation, such that the at least one tensioning member is stretched across the air gap (130) in the device. The different axial levels for the at least one first control point and the at least one second control point mean that the at least one tensioning member can freely pass over the at least one first control point during the rotation and can be stretched across the air gap towards the object. Substantially any desired angle of rotation between the hub and the ring can be obtained in this way.
Abstract:
Afin de réaliser des perçages sans risque de bourrage de l'outil coupant utilisé, un dispositif de perçage utilise des moyens pour produire une vibration axiale auto-entretenue de l'outil qui a pour effet de briser les copeaux de la matière enlevée du trou pour faciliter leur évacuation. Les moyens pour produire la vibration axiale auto-entretenue sont en outre conformés pour que l'axe de l'outil puisse avoir une direction sensiblement différente de l'axe de rotation des moyens utilisés pour entraîner l'outil en rotation. Un tel dispositif est particulièrement avantageux pour la réalisation de trous profonds et ou lors de l'utilisation d'outils coupants produisant des efforts de coupe non symétriques. Dans une forme de réalisation particulièrement avantageuse, les moyens pour produire la vibration axiale auto-entretenue et pour permettre à l'axe de rotation de l'outil d'avoir une direction sensiblement différente de l'axe de rotation des moyens d'entraînement font partie de l'outil coupant.
Abstract:
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.
Abstract:
A compact oldham-type floating reamer holder with holder and reamer portions which transfer torque therebetween via a floating member. The floating reamer holder includes an elastic element which axially biases the holder and reamer portions. In an operative position, the floating reamer holder is configured to automatically enable angular misalignment, parallel misalignment and axial translation between the holder and reamer portion axes. In a non-operative position, the reamer portion axis is co-aligned with the holder portion axis. And the elastic element at least partially overlaps the reamer portion.
Abstract:
An ultrasonic machining module that includes an ultrasonic transducer, wherein the ultrasonic transducer is adapted to receive a machining tool and a vibration-isolating housing adapted to be both compatible with a machining system and to receive the ultrasonic transducer therein, wherein the housing further includes at least one modification for isolating all vibrations generated by the ultrasonic transducer when the device is in operation except axial vibrations transmitted to the machining tool, thereby preventing unwanted vibrations from traveling backward or upward into the machining system. The ultrasonic machining module may also include an acoustically tuned collet and/or an acoustically tuned system for delivering coolant fluid through the module to a machining tool or target substrate.