Abstract: The invention relates to a hydraulic expanding chuck for gripping a tool, for example a drill or a milling tool, comprising: a clamping part having an expansion sleeve having a central receiving opening for receiving and clamping the tool; and a connection part, in particular having a HSK connection. According to the invention, the expansion sleeve has at least two pressure chambers, which are designed to run around the central receiving opening, which are arranged at an axial distance relative to one another, and which can bulge when the tool received in the central receiving opening is subjected to fluid pressure. The at least two pressure chambers are connected to one another by a fluid channel.

Abstract: A machining tool for producing or machining bores, respectively, with high positional and/or surface quality, comprising a tool axis and a tool carrier section, which carries at least one tool blade and at least one guide rail, which radially supports the tool carrier section on a bore wall. The guide rail can be set with respect to its radial position and with respect to its tilt relative to the tool axis by means of a setting means, which engages with a guide rail carrier. In order to put together a tool, which operates highly precisely and with little effort, the guide rail carrier is connected via a material joint to a section that is fixed to the tool, thus either to the tool carrier section or a component, which can be firmly connected thereto, and the material joint can be blocked by means of the setting means.

Abstract: A hydraulic expansion chuck for accommodating a machining tool, comprising a main chuck body that has a first chuck portion for fastening to a chuck connection as well as a second chuck portion for clamping the machining tool, wherein the second chuck portion includes a substantially cylindrical cavity, and wherein at least a first chamber and a second chamber for holding a fluid are arranged within the second chuck portion in such a way as so peripherally surround at least some sections of the cavity, and said first chamber and second chamber are designed in such a way as to bulge and reduce a cross-section of the cavity in at least some sections when the pressurized fluid is admitted into the chambers, the first chamber and the second chamber being positioned at an angle to one another.

Abstract: The application relates to hydraulic expansion chucks (1) for accommodating a machining tool (0), comprising a main chuck body (2) with a substantially cylindrical cavity (21), and comprising a bushing (3) with a first portion (31) and a second portion (32), wherein the entire first portion (31) is located within the cavity (21) of the main chuck body (2), while the entire second portion (31) is located outside the cavity (21) of the main chuck body (2).

Abstract: An adjustment unit (1) for a guide bar (4) on a machining tool (0), comprising an actuation part (5) and the guide bar (4), wherein the actuation part (5) is connected to the machining tool (0) and directly or indirectly interacts with the guide bar (4) in order to move the guide bar (4) continuously in a radial direction R-R of the machining tool (0) by actuation of the actuation part (5).

Abstract: A hydraulic expanding chuck having a main body which extends along a rotational axis and has a clamping part for receiving and clamping a shank tool and a shank part having a hollow shank for directly or indirectly coupling the hydraulic expanding chuck to a module of a modular tool system or to a machine spindle. The clamping part has a central receiving opening and, around the receiving opening, at least one pressure chamber to which fluid pressure can be applied and which is separated from the receiving opening via an elastically yielding expansion wall and is connected via a pressure duct to a pressure-generating device situated in the main body. The pressure-generating device is arranged axially in the region between the receiving opening and the hollow shank in a central cut-out, which is coaxial with the receiving opening and which opens into the hollow shank.

Abstract: A rotatable tool, comprising a tool support body which has an axis and which forms at least one plate seat either directly or in a cartridge in order to receive a cutting plate. By means of a head screw, which passes through the cutting plate, the base of the cutting plate can be pressed against a base support surface, and two plate edges, which form an angle with each other, can be pressed against a respective corresponding edge support surface of the plate seat. Production dimensions are maintained with a low degree of tolerance and the tool is protected from excessive wear to a sufficient degree. Both edge support surfaces are made of support bodies which are movably guided in the tool support body and which can be driven by a corresponding adjustment device in order to finely adjust the cutting plate in a radial and axial direction, respectively.

Abstract: The invention relates to a cutting tool having a main body (4) extending along a longitudinal central axis (9) and a cutting insert (1), which is held on the main body (4) in an axially and/or radially positionally-adjustable manner and can be tensioned by means of a clamping claw (3). According to the invention, the cutting insert (1) is held by a clamping holder (2), which is held in a positionally-adjustable manner on the main body (4), and which can be tensioned on the main body (4) by means of the clamping claw (3) pressing against the cutting insert (1).

Abstract: The invention relates to a hydraulic expanding chuck for gripping a tool, for example a drill or a milling tool, comprising: a clamping part having an expansion sleeve having a central receiving opening for receiving and clamping the tool; and a connection part, in particular having a HSK connection. According to the invention, the expansion sleeve has at least two pressure chambers, which are designed to run around the central receiving opening, which are arranged at an axial distance relative to one another, and which can bulge when the tool received in the central receiving opening is subjected to fluid pressure. The at least two pressure chambers are connected to one another by a fluid channel.

Abstract: A chuck for a tool comprises a device for supplying a cooling and/or lubricating medium to a medium channel in a tool held in the chuck, an adjusting screw, and securing means. The adjusting screw serves as a stop for the tool held in the chuck, is arranged in the chuck, is adjustable in relation to the chuck in the axial direction of the chuck, and interacts with a pipe element. The pipe element is held rotatably in the chuck and the securing means limit an axial displacement of the pipe element at least in the direction of the adjusting screw. The pipe element and the adjusting screw are connected in a rotationally fixed but axially displaceable manner with respect to each other.

Abstract: There is provided a metal-cutting tool comprising a tool holder, a replaceable cutting plate, and an adjusting element which is attached by means of screw-fastening means elements and with which the position of the cutting plate on the tool holder can be adjusted. The screw-fastening means comprises a threaded element which interacts with the adjusting element and can be fixed in place in the tool holder.

Abstract: A clamping system for detachably connecting two parts, one part has a hollow shaft and the other part has a receiving portion for receiving the hollow shaft with a precise fit, comprising: a main body to be arranged concentrically in the receiving portion, extends into the hollow shaft when the two parts are joined to one another, and bears two clamping bodies, operable in a diametrically opposed manner between release and clamping positions, and comprising an ejector axially adjustable by a defined ejection stroke in a centric through-bore in the main body, the clamping bodies subject the one part to a pressing force in the clamping position, and in the release position subject the one part to an ejection force, the ejector formed from a body of revolution, which is detachably anchored directly in a centric through-bore in the main body with axial play corresponding to the ejection stroke.

Abstract: A clamping system for detachably connecting two parts, one part has a hollow shaft and the other part has a receiving portion for receiving the hollow shaft with a precise fit, comprising: a main body to be arranged concentrically in the receiving portion, extends into the hollow shaft when the two parts are joined to one another, and bears two clamping bodies, operable in a diametrically opposed manner between release and clamping positions, and comprising an ejector axially adjustable by a defined ejection stroke in a centric through-bore in the main body, the clamping bodies subject the one part to a pressing force in the clamping position, and in the release position subject the one part to an ejection force, the ejector formed from a body of revolution, which is detachably anchored directly in a centric through-bore in the main body with axial play corresponding to the ejection stroke.

Abstract: A chuck for a tool comprises a device for supplying a cooling and/or lubricating medium to a medium channel in a tool held in the chuck, an adjusting screw, and securing means. The adjusting screw serves as a stop for the tool held in the chuck, is arranged in the chuck, is adjustable in relation to the chuck in the axial direction of the chuck, and interacts with a pipe element. The pipe element is held rotatably in the chuck and the securing means limit an axial displacement of the pipe element at least in the direction of the adjusting screw. The pipe element and the adjusting screw are connected in a rotationally fixed but axially displaceable manner with respect to each other.

Abstract: The invention concerns a clamping element of a coupling device for releasably but axially and rotationally fixing tool components for dry machining (MMS technology) and for wet machining. The element provides a friction-type connection between the components to be coupled. A cooling tube is arranged at the center of the coupling device. The spindle is provided with an elongated hole run through which cooling tube passes. A variable contour between the base body and the clamping segment enables an increase in distribution of forces for the support of the clamping segments. The novel geometry of the clamping segments results in novel contours in the base body with smoother transitions, hence a better force distribution, thereby reducing material breakage and a more reliable and robust clamping. By virtue of their novel geometry, the clamping segments have an increased surface enabling larger clamping screws to be used.

Abstract: There is provided a metal-cutting tool comprising a tool holder, a replaceable cutting plate, and an adjusting element which is attached by means of screw-fastening means elements and with which the position of the cutting plate on the tool holder can be adjusted. The screw-fastening means comprises a threaded element which interacts with the adjusting element and can be fixed in place in the tool holder.

Abstract: The invention concerns a clamping element of a coupling device for releasably but axially and rotationally fixing tool components for dry machining (MMS technology) and for wet machining. The element provides a friction-type connection between the components to be coupled. A cooling tube is arranged at the center of the coupling device. The spindle is provided with an elongated hole run through which cooling tube passes. A variable contour between the base body and the clamping segment enables an increase in distribution of forces for the support of the clamping segments. The novel geometry of the clamping segments results in novel contours in the base body with smoother transitions, hence a better force distribution, thereby reducing material breakage and a more reliable and robust clamping. By virtue of their novel geometry, the clamping segments have an increased surface enabling larger clamping screws to be used.

Abstract: The invention relates to a tool for machining workpieces by chip removal. A base body which rotates during the machining of the workpiece is provided with cartridges that are screwed thereto. According to the invention, the screwing means are arranged on the base body of the tool in such a way that they are supported thereon by means of anchoring means comprising a bearing surface, enabling a favourable force distribution to be obtained during the fixing of the cartridges.

Abstract: The invention concerns a clamping element of a coupling device for releasably but fixedly fitting components in the axis and in rotation, in particular tool components for dry machining (MMS technology) and for wet machining, said element providing a friction-type connection between the components to be coupled. The cooling tube (2) arranged at the center of the coupling device modifies the geometry of the clamping elements. The spindle is provided with an elongated hole run through by the liquid cooling tube (2), the radial offset of the clamping segments (5) being thus compensated. The modified design of the clamping segments (5) between the base body (7) and the clamping segment enables the distribution of forces for the support of the clamping segments (5) to be increased. The novel geometry of the clamping segments (5) results in novel contours (6) in the base body with smoother transistions, hence a better force distribution, thereby reducing material breakage and a more reliable and robust clamping.

Abstract: The invention relates to a clamping chuck for a tool comprising a device for supplying a cooling agent and/or lubricants to a feeding channel of the tool maintained by the clamping chuck. The clamping chuck comprises a sleeve for coupling a feed pipe for supplying a cooling agent and/or lubricants, the sleeve provided with a tubular element and an adjusting screw which is arranged in such a way that it is displaceable with respect to the clamping chuck in the direction of the longitudinal axis thereof.