Abstract: In a method for monitoring an operating behavior of a tool holder, a resultant measurement axis signal is calculated using at least two measurement axis signals of at least two radially oriented measurement axes of a sensor provided in the tool holder. The monitoring is performed using the resultant measurement axis signal or the resultant.

Abstract: A coupling element for receiving a probe tip in a probe measuring apparatus has a journal at one end with a first connecting/coupling region. A screw insert has a first connecting/coupling region at one end with a recess, in particular for connecting to the coupling element 16. The journal of the coupling element forms, on an outer surface, or the recess of the screw insert forms, on an inner surface, multiple thread segments or respectively which do not adjoin one another in a radial circumferential direction. A probe measuring apparatus includes the coupling element, the screw insert, a coupling arm/measuring shaft, and a probe insert connected to the coupling arm by way of the coupling element and the screw insert.

Abstract: A device for heating adapters for mounting tools for use in machine tools. The device comprises a base part in which an adapter for inserting or removing a tool is arranged such that the insertion direction of the tool extends towards the base part. The device also comprises a heating part designed for heating the adapter arranged in the base part, the base part and the heating part being displaceable relative to one another in the insertion direction of the tool. The base part comprises a mounting device for retaining the adapter in a fixed manner on the base part during heating. The adapter and the mounting device are provided with elements for interlocking interaction for retaining the adapter on the base part.

Abstract: A device for hydraulically clamping tools or workpieces, a tool holder or workpiece holder for short, has a clamping portion for clamping a tool or workpiece. An interior of the clamping portion has a plurality of chambers which are connected in fluidic communication by way of a channel system. In order to be able to change, in particular increase, the dynamic rigidity of the hydraulically clampable tool/workpiece holder, a central throttle point is arranged in the channel system. The central throttle point has an adjustment element with which a flow cross section in the central throttle point can be changed.

Abstract: The invention relates to a method for monitoring the temperature of the sleeve part of a tool holder, which sleeve part is inserted into the induction coil of a contraction device, wherein the instantaneous inductance of the induction coil is measured during the inductive heating and the current supply to the induction coil is influenced if the instantaneous inductance approaches, reaches, or exceeds a specified value.

Abstract: Shrink-fitting device for clamping and unclamping tools that have a tool shank, having a tool receptacle which has a sleeve part that is open at its free end and is made of electrically conductive material, for receiving the tool shank in a frictional manner, and having an induction coil that encloses the sleeve part of the tool receptacle, is able to be subjected to a high-frequency alternating current and is configured as a ring coil or a cylindrical coil, for heating the sleeve part, wherein the induction coil bears, on its outer circumference, a first casing made of magnetically conductive and electrically non-conductive material, and the device comprises power semiconductor components for producing an alternating current feeding the induction coil, and an induction coil housing that preferably consists of insulating material, wherein the induction coil and its first casing are surrounded at the outer circumference by a second casing which consists of magnetically non-conductive material and electrically

Abstract: A device for adjusting the setting of and/or for measuring a tool includes a measuring element carrier which can move along a first axis (x-axis), and along a second axis (z-axis) that extends at right angles to the first axis, on which measuring element carrier a measuring element for the optical measurement of the tool is disposed. To facilitate the adjusting and measuring process, a reference body, which is able to move between a standby position and a measuring position on the tool, is disposed on the measuring element carrier for interaction with the measuring element.

Abstract: The invention relates to a tool holder (10) which is embodied for rotation around a tool holder rotation axis (D) and which comprises at its one axial longitudinal end (10a) a tool segment (14) for receiving a tool, and at its other axial longitudinal end (10b) a coupling segment (16) for torque-transferring coupling to a machine tool (78), a measurement apparatus (28) for sensing data relating to the operation of the tool holder (10) being provided on the tool holder (10), which apparatus encompasses at least the following components:—at least one sensor (30, 32, 34, 36) supplying a sensed signal;—a signal transfer apparatus (38) for transferring a measured signal;—an electrical circuit (40) connected in signal-transferring fashion to the sensor (30, 32, 34, 36) and to the signal transfer apparatus (38); and—an energy supply apparatus (42) that is connected to the signal transfer apparatus (38) and to the electrical circuit (40).

Abstract: A collet chuck for clamping a tool shank, comprising a chuck body, a collet and a multi-part clamping nut consisting of a clamping ring and a threaded section rotatably connected to each other via rolling elements, otherwise connected in an interlocking manner, wherein the clamping ring and the collet comprise interlocking coupling elements designed such that the collet can be inserted into the collet housing through the central opening, facing away from the chuck body, of the clamping ring held on the chuck body, while the coupling elements move past each other, and then the coupling elements can be brought into engagement with each other by rotating the clamping ring relative to the collet, so that the clamping ring can transmit the forces applied to it by the threaded section during tightening to the collet via the coupling element and can drive the collet into the chuck body.

Abstract: A device for adjusting the setting of and/or for measuring a tool includes a measuring element carrier which can move along a first axis (x-axis), and along a second axis (z-axis) that extends at right angles to the first axis, on which measuring element carrier a measuring element for the optical measurement of the tool is disposed. To facilitate the adjusting and measuring process, a reference body, which is able to move between a standby position and a measuring position on the tool, is disposed on the measuring element carrier for interaction with the measuring element.

Abstract: A chucking device for a tool includes a tool receiving element; a collet for clamping the tool, the collet being inserted in an opening in the tool receiving element; a clamping nut for axially displacing the collet in relation to the tool receiving element; and a pressure piece which is arranged between the clamping nut and the collet and is rotatably mounted in relation to the clamping nut, by means of which piece the collet can be axially displaced in relation to the tool receiving element by the clamping nut. To permit a tool shank to be securely clamped in and released from the collet, even under extremely high clamping forces, the pressure piece has coupling elements for a torsion-proof connection to corresponding mating elements of the tool receiving element.

Abstract: The present invention relates to a device for heating adapters for mounting tools for use in machine tools, comprising a base part in which an adapter for inserting or removing the tool can be arranged such that the insertion direction of the tool extends towards the base part, and a heating part which is designed for heating the adapter arranged in the base part, the base part and the heating part being displaceable relative to one another in the insertion direction of the tool. In this case, the base part comprises a mounting device that is designed for retaining the adapter in a fixed manner on the base part during heating. The invention further relates to a system formed of a device of this kind and an adapter, and to a method for operating the device.

Abstract: The induction coil unit for heating a component which is rotationally symmetrical relative to an axis, includes a plurality of coils arranged about the axis of the tool holder, with pole elements, which are movable radially with respect to the axis, of which pole elements each one consists of includes a stack of pole rods that can be moved relative to one another. A yoke ring connects the pole elements, which, when the coils are excited by alternating current in the tool holder, produce a magnetic flux running in the peripheral direction to inductively heat the tool holder. The pole rods of each pole element can be moved jointly by means of pinion rollers, wherein, however, slide couplings or the like are provided in the drive force transmission path between the individual pole rods so that the pole elements can adapt to different contours of the tool holder.

Abstract: According to the invention, for shrinking and expanding a tool in the bush part (3) of a tool holder, an induction coil unit (1), in which several polar parts (25) made of a soft magnetic material are radially adjusted in the yoke ring made of a soft magnetic material, is provided. Said polar parts have end faces (29) which are inclined in relation to the axis of rotation (7) of the bush part (3) and can be kept in a linear contact with a conical peripheral surface (31) of the bush part (3) which holds a the tool (11) in a press fit manner. In order to avoid possible local overheating of the bush part (3), the area (39) of the end face (29) parallel to the axis is connected on the output side of the tool to an area (33) of the end face (29) inclined in relation to the axis of rotation (7).

Abstract: The invention relates to a tool holder (10) which is embodied for rotation around a tool holder rotation axis (D) and which comprises at its one axial longitudinal end (10a) a tool segment (14) for receiving a tool, and at its other axial longitudinal end (10b) a coupling segment (16) for torque-transferring coupling to a machine tool (78), a measurement apparatus (28) for sensing data relating to the operation of the tool holder (10) being provided on the tool holder (10), which apparatus encompasses at least the following components:—at least one sensor (30, 32, 34, 36) supplying a sensed signal;—a signal transfer apparatus (38) for transferring a measured signal;—an electrical circuit (40) connected in signal-transferring fashion to the sensor (30, 32, 34, 36) and to the signal transfer apparatus (38); and—an energy supply apparatus (42) that is connected to the signal transfer apparatus (38) and to the electrical circuit (40).

Abstract: An end mill, preferably made of solid carbide, with a fastening section and a cutting area, in which the cutting area is formed by a core and three or four cutting edges running helically around the axis of rotation of the end mill and arranged around core; each of which has a peripheral main cutting edge and a secondary cutting edge on a face of the cutting area. On the face of the cutting area at least one point thinning of core is provided between two adjacent cutting edges. In order to create end mills that are simple to manufacture and optimized for drilling, the point thinning has an angle of 30° to 40° relative to the axis of rotation of the end mill.

Abstract: Damping elements for tool chucking systems for damping vibrations and shocks that occur during machining in the case of force-fitting clamping of tools in a tool receptacle or on the tool itself. At least one damping element consisting of a shape memory alloy having a mechanical effect is provided in a tool chucking system or on the tool itself, such that the damping element provided in the chucked state in the force flow of the chucked elements is present in a reversible and hysteresis-dependent state by way of a mechanical force action and the associated crystalline conversion via the pretensioning of said damping element and leads to dissipation of mechanical energy. The mechanical energy to be damped is a cyclical vibration or represents a non-cyclical overload which is transmitted in the form of shocks.

Abstract: A balancing adapter for clamping a rotor to a machine part of balancing machine that rotates about an axis of rotation. The balancing adapter has a main body having a central accommodating opening for the rotor, a collet chuck having clamping elements for detachably retaining the rotor in the accommodating opening, and an actuating device for moving the clamping elements between a clamping position and a releasing position. In order to enable positionally accurate and reproducible accommodation and retention, the clamping elements of the collet chuck are supported on a guiding surface on the main body.

Abstract: The invention provides a clamping system (1) for a rotary tool (70), for example a milling cutter or drill. The clamping system (1) includes a base element (10), a collet (30) and a clamping nut (50), said clamping nut (50) friction-locking the rotary tool (70) within the base element (10) with the collet (30). In order to avoid a relative rotation of the base element (10) and the collet (30), the clamping system (1) has a form locking anti-twist protection which blocks a rotation of the collet (30) relative to the base element (10).

Abstract: The invention relates to a balancing or measuring adapter (1) for clamping a component (2) on a rotating machine element of a balancing or measuring machine, which has a main body (4, 5) with a receiving opening (6) for the component (2) to be clamped, a collet chuck (11) arranged inside the main body (4, 5) with clamping tongues (26) for centrally clamping the component (2) and an actuator (12) axially adjustable between a clamp position and a release position for actuating the collet chuck (11).