A shrink-clamping cooling device at least for an, in particular contour-independent, tempering of tool holders and/or tools, which were in particular heated previously, with at least one cooling container, which forms a receiving space for receiving at least one tool unit comprising a tool holder and a tool, and with at least one climate-control apparatus, which is configured for essentially tempering, preferably actively cooling, a cooling gas or cooling gas mixture, in particular cooling air, which is contained in the receiving space of the cooling container, and/or a cooling gas or cooling gas mixture, in particular cooling air, fed to the receiving space of the cooling container, for the purpose of cooling the tool unit.

An induction heating device for a shrink-clamping and/or unshrink-unclamping of tools into and/or out of a tool holder, includes an induction heating unit having at least one induction coil configured to thermally expand at least a portion of a tool holder arranged in a receiving region of the induction heating unit, and includes at least one magnetic flux conducting unit for a conduction of a magnetic flux generated by the induction coil, having at least one magnetic flux conducting element, preferably supported movably relative to the receiving region and implemented at least to a large extent of a ferrite material, and includes a sleeve element, arranged on the magnetic flux conducting element and covers the magnetic flux conducting element on at least one side of the magnetic flux conducting element that faces toward the receiving region in at least one operating state of the magnetic flux conducting unit.

A cutting tool comprises a shank having an insertion portion protruding from a shank main body, a head in which an insertion hole into which the insertion portion is inserted is formed, and a spacer disposed in a gap between the shank main body and the head. The insertion portion has a tapered outer circumferential surface which gradually decreases in diameter from the other side toward one side in the axial direction. The insertion hole has a tapered inner circumferential surface coming into surface contact with the tapered outer circumferential surface. A head end surface of the head which faces the other side in the axial direction comes into surface contact with a surface facing one side in the axial direction of the spacer.

The invention is based on an induction heating unit adjustment device (44a; 44b) for an adjustment of at least one field shape of an alternating field of an induction coil (10a; 10b) of an induction heating unit (12a; 12b), with a field forming unit (14a; 14b) which is configured for a, preferably variable, shaping and/or shielding of the alternating field generated by the induction coil (10a; 10b), comprising at least one field former element (16a; 16b) and a field former receiving unit (18a; 18b), which is configured to hold the field former element (16a; 16b) in and/or on the induction heating unit (12a; 12b).

It is proposed that the induction heating unit adjustment device (44a; 44b) comprises an electronic sensor unit (20a; 20b), which is configured for sensing a type and/or a position of the field former element (16a; 16b) that is held in and/or on the induction heating unit (12a; 12b) by the field former receiving unit (18a; 18b), and for outputting an electronic measurement signal.

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.

An appliance for heat treatment or inductive heating or cooling of shrink chucks for shaft-type tools or a shrinkage appliance or cooling appliance or shrinkage appliance with a cooling appliance, includes a receiving device or opening receiving a shrink chuck, a heat treatment unit surrounding the receiving device relative to a central axis, an induction coil arrangement or cooling unit, and a measuring unit for temperature measurement of the shrink chuck. For exactly measuring shell temperatures of chucks in receiving openings, the measuring unit has temperature sensors around the receiving device or one temperature sensor inclined around the central axis for contactless detection of the shell temperature, or the measuring unit has sensors around the receiving device including a first temperature sensor for contactless detection of a shell temperature, and a different type of second sensor for detecting another property of the shrink chuck in the receiving device.

A multi-clamping and measuring and/or presetting station for tools is configured for an automated, preferably fully automated, mounting of tools into tool holders and/or demounting of tools from tool holders and for an adjustment, in particular at least a length adjustment, and/or measuring of the tools in the tool holders with at least two, in particular fully automated, tool clamping-in units, with at least one, in particular optical, measuring and/or presetting apparatus for tools and with at least one handling robot, which is at least configured to move tools and tool holders between the tool clamping-in units and the measuring and/or presetting apparatus.

A device for cooling a shrink-fit chuck with a cooling head, which contains a cooling attachment that can be mounted on the shrink-fit chuck and an intake tube connected to the cooling attachment for the drawing of air at an input of a passage opening in the cooling attachment. In order to make possible a limited noise emission, the cooling head includes a cooling air feed at least partially insulated by a sound insulation device to supply air to the input of the passage opening on the cooling attachment.

An induction heating device for a shrink-clamping and/or unshrink-unclamping of tools into and/or out of tool holders has an induction heating unit with at least one first inductor and at least one second inductor, which is preferably realized separately from the first inductor, wherein the first inductor and the second inductor are configured to respectively expand at least a portion, in particular different portions, of the tool holder by inductor heating in a shrink-clamping and/or unshrink-unclamping process, and has an electric supply unit, wherein the inductors are configured to output respectively different energies to different subregions of a tool holder, which are in a heating operation respectively encompassed by the inductors, as one of the inductors has more windings than the other inductor, in particular by at least 10%, preferably by at least 20% and preferentially by at least 30% more windings, and/or as the electric supply unit is at least configured to operate the first inductor and the second inductor in different manners.

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 conductive material and is designed such that a stray field that occurs in the vicinity thereof generates eddy currents in the second casing and as a result the stray field is weakened, and in that at least the power semiconductor components are accommodated together with the induction coil in an induction coil housing which encloses the induction coil, the first and second casing thereof, and the power semiconductor components, at least around the circumference of the induction coil.