Abstract: A balancing or measuring device includes a main body which is rotatable about an axis and includes an opening for accommodating a coupling shaft of a component to be balanced or measured, and having a centering element which can be axially displaced within the main body against a spring arrangement to center the component in the main body. In order to ensure maximum concentricity also in a balancing or measuring device having a small number of parts, the spring arrangement is designed to be integral with the centering element.

Abstract: The invention relates to a tool holding device comprising a tool holding body for securing, in a fixed manner, a rotary tool comprising a shaft, provided with a clamping section and a receiving opening for the shall of the tool, a coolant feeding device for pressurized fluid, at least one coolant guiding device for guiding the coolant into a clamped tool shaft. The coolant guiding device is designed as at least one flat groove on an inner side of the receiving opening, joining to the front side on a free end of the tool holding body and directly adjacent to the tool shaft in the surroundings of the tool holding device or a coolant storing chamber and or collecting chamber is provided in the region of the free end of the tool holding body, to which the at least one coolant guiding device joins. The coolant storing chamber and or collecting chamber is connected by means of an annular gap to the surroundings of the tool holder device.

Abstract: A tool holder with a main part, a deformable receiving portion for clamping a tool, and at least one blocking element which is designed to engage into a corresponding counter element on the tool in order to prevent the tool from moving axially out of the tool holder. The at least one blocking element is integrally formed with the receiving portion. A clamping system having such a tool holder and a method for producing a receiving portion for such a tool holder are also described.

Abstract: The invention relates to a screw-in tool (1) and to a tool holder (2) for such a screw-in tool. The screw-in tool (1) contains a tool head (3) and a tool shank (4) having an outer thread (5) and a supporting region arranged between the tool head (3) and the outer thread (5). According to the invention, the supporting region is formed by two conical bearing faces (6, 8) having different cone angles.

Abstract: A tool receptacle for a screw-in tool having a main body, which has a receiving region including at least one conical contact surface for supporting a corresponding conical support surface of the screw-in tool. For thread-protection and for tightening with high concentricity and low production outlay, an insert is disposed in the main body, the insert is movable transversely with respect to the longitudinal axis of the main body and is rotationally-fixed with respect to the main body and has a mating thread for a thread on the screw-in tool.

Abstract: A tool holder having a tool receptacle for chucking a tool shaft by frictional engagement, in which the tool receptacle comprises a plurality of annular clamping surfaces spaced apart from one another, which are intended for retaining the tool shaft by nonpositive engagement and are embodied on the inner circumference of a tube part, and the tube part has a recess in the material for varying its clamping action; the recess in the material is embodied by a plurality of annular channels extending in the circumferential direction, which are each separated from the tool receptacle by a resilient wall portion, which on its side facing away from the channel embodies the respective clamping surface.

Abstract: A tool holder for non-positively holding a rotatable tool by a receiving body containing a receiving opening with slits extending radially from the inner wall towards the exterior and running in the longitudinal direction of the receiving body. To permit a simple production process, the receiving body has an insert fixed into a receiving section.

Abstract: A tool chuck for clamping a tool in a machine tool, having a base body and a sleeve part protruding therefrom, which sleeve part forms a tool holder for fixing a tool shaft in a frictional, nonpositive fashion; a cavity in which a vibration damping component is accommodated is provided in the tool chuck.

Abstract: A tool arrangement with a screw-in tool and a tool receiver, the screw-in tool having a thread for engagement in a counter thread on the tool receiver. The counter thread and the thread have different thread contours and therefore, in the screwed condition, these adapt to one another by elastic deformation.

Abstract: A screw-in tool and a tool holder for such a screw-in tool. The screw-in tool contains a tool head and a tool shank having an outer thread and a supporting region arranged between the tool head and the outer thread. The supporting region is formed by two conical bearing faces having different cone angles.

Abstract: The invention relates to a device for cooling an object that was previously subjected to a heat application, generally a multi-piece composite, particularly in the form of a shrink-fit chuck into which the shank of a tool was chucked or from which it was removed (cooling device), wherein the device comprises a pump, by way of which it generates a carrier gas flow, particularly an air flow, which is charged with a liquid cooling medium, particularly water, so that a coolant flow, the majority of the volume of which consists of the carrier gas, is created, which then spreads over at least the section of the object to be cooled.

Abstract: A balancing or measuring adapter, which includes a main body having a holder for the component to be balanced or measured and a clamping device assigned to the main body having a movable clamping element for clamping the component to the main body and releasing it therefrom. A braking device for generating a constant advance speed of the clamping element as it moves is arranged on the movable clamping element for precisely positioned clamping and jerk-free release of the component.

Abstract: A rotary cutting tool having an axis of rotation, a shank area, and a cutting area. The rotary tool has chip flutes reaching as far as a core profile in the cutting area. In order to reduce vibrations of the rotary cutting tool and therefore to permit precise machining and high surface quality with long service lives, the center line of the core profile has a course that deviates from the axis of rotation of the rotary cutting tool and/or the core profile contains mutually alternating sections with increasing cross-sectional area and sections with decreasing cross-sectional area over the length of the cutting area.

Abstract: An apparatus for cooling a shrink-fit chuck, having a cooling attachment that can be placed on the shrink-fit chuck and contains a plurality of feed openings for supplying a coolant into an interior of the cooling attachment. Connected to the cooling attachment are a device for feeding a liquid coolant into the interior of the cooling attachment and a suction-extraction device for the suction-extraction of the liquid coolant used for cooling the shrink-fit chuck from the interior of the cooling attachment.

Abstract: A milling cutter with at least one peripheral cutting edge 4 disposed on its periphery, the peripheral cutting edge 4 being configured as a profile of spaced-apart teeth 7 that forms a so-called “cord”; wherein each of the teeth 7—looking from the flute in a direction opposite to the cutting direction onto the cutting edge portion—forms a cutting edge portion SK composed of several different radii, i.e. of at least one larger radius R1 forming the predominant part of the cutting edge portion of the respective tooth 7 and a smaller radius R2, which is preferably immediately adjacent thereto on both sides.

Abstract: An apparatus for clamping a component on a rotating machine part, in particular a balancing machine, having a basic body, having a clamping mandrel, which is arranged in an axially displaceable manner within the basic body, and having a plurality of clamping devices, which can be moved between a release position and a clamping position by axial displacement of the clamping mandrel. In order to make it possible for components to be clamped centrally with repeated accuracy, the clamping devices are designed as clamping segments which can be displaced radially in relation to the center axis of the basic body above the latter.

Abstract: A rotatable cutting tool, which extends along a tool axis defining an axial direction, includes a cutting formation in a first axial longitudinal end region, which is configured for material ablation on a workpiece, and includes a screw-connection formation in a second axial longitudinal end region opposing the first, which is configured for screw connection with a coupling unit. The cutting tool includes key-contact surface formations diametrically opposing each other with respect to the tool axis, which are configured for torque-transmitting abutting engagement with key surfaces of a key. Each of the key-contact-surface formations includes at least two key-contact surface regions provided with spacing from each other in the circumferential direction about the tool axis, which key-contact surface regions are inclined away from each other such that they form a vertex projecting away from the tool axis.

Abstract: A tool arrangement with a tool receptacle and a tool, with at least one fluid channel for supplying a fluid to the tool provided in the tool arrangement. In order to allow an improved supply of alternative fluids to the tool, the fluid channel has at least one throttle point for maintaining the pressure in the fluid channel upstream of the throttle point, and the throttle point is suitable for keeping the pressure on the fluid sufficiently high such that no excessive premature evaporation of the fluid takes place.

Abstract: The induction coil unit for heating a sleeve section of a tool holder holding the shaft of a rotation tool in a receiver opening in press fit comprises two coil units, whose distance can be changed selectively through at least one slanted surface cam assembly. A magnetic flux concentrator assembly with several concentrator elements distributed in circumferential direction is associated with the coil unit adjacent to the free end of the sleeve section. The width of a pass through opening defined by the concentrator elements for the tool shaft is also changeable through a control cam, to which the concentrator elements are coupled through a slanted surface cam assembly. The two slanted surface cam assemblies are coupled amongst each other in a useful manner in order to simplify the operation of the unit.

Abstract: A tool holder for non-positively holding a rotatable tool by a receiving body containing a receiving opening with slits extending radially from the inner wall towards the exterior and running in the longitudinal direction of the receiving body. To permit a simple production process, the receiving body has an insert fixed into a receiving section.