This disclosure relates to a shrink-fit device for inductively heating shrink-fit chucks for shank tools, having an accommodating region for accommodating a shrink-fit chuck, an induction coil arrangement which surrounds the accommodating region concentrically with respect to a coil axis, and a measuring unit for controlling the temperature of the shrink-fit chuck. For controlling heating, a measuring channel, which opens into the accommodating region, passes through the induction coil arrangement. The measuring unit has a temperature sensor which engages in the measuring channel for detecting a casing temperature of the shrink-fit chuck.

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 comprising one induction coil configured, in a shrink-clamping and/or unshrink-unclamping process, to heat-expand a portion of a tool holder arranged in a receiving region of the induction heating unit; magnetic flux conducting unit comprising one magnetic flux conducting element for conduction of magnetic flux generated by the induction coil; and a bearing unit configured for a movable support of the magnetic flux conducting element, wherein a large portion of all points of the magnetic flux conducting element each have a respective movement path predetermined partially by the bearing unit, wherein each of the movement paths has an essential movement component oriented perpendicularly to a radial direction of the receiving region and at the same time perpendicularly to an axial direction of the receiving region.

Tool holder has a first section adapted to be connected to a machining center and a tool holding section comprising a bore with a surface defining an inner diameter of the bore. Dispersed around the surface of the bore and at least partially embedded in the surface of the bore is a joining compound having a Young's modulus greater than a Young's modulus of the surface of the bore.

A method and a device are provided for replacing individual idler rollers for conveyors, with which a web belt can be lifted and worn-out or damaged idler rollers in upper and lower runs can be individually replaced. The device includes, separately for replacing the idler rollers in the upper run and in the lower run, a subframe (1) for lifting the web belt (7) and for holding the web belt (7), such that a sufficient clearance is formed for replacing worn-out idler rollers (53) by means of a changing frame (2). A service vehicle is equipped with a lifting apparatus for moving dividing devices. The process steps include lifting the web belt (7), removing the old idler roller (53.sup.old), inserting the new idler roller (53.sup.new) and lowering the web belt (7). The drawing shows the use of two dividing devices in the replacing of idler rollers in the upper run.

The present invention provides a device (10) for inserting a tool (18) into a tool receptacle (14), said device comprising a first holding means (12), which is configured to hold a tool receptacle (14), a second holding means (16), which is configured to hold a tool (18), a linear guide (20), by means of which the second holding means (16) is able to move in relation to the first holding means (12) in an axial direction running along or parallel to a main axis (X) in order to move the tool closer to the tool receptacle and insert it into the tool receptacle, a sensing arrangement (40), which is able to move in an axial direction and is configured to sense in a contact-free manner an axial position of a first reference point (R1) associated with the first holding means and to sense in a contact-free manner an axial position of a second reference point (R2) for a tool held by the second holding means, and a measuring arrangement, which measures an axial displacement path of the sensing arrangement. The invention furthermore relates to a method for inserting a tool as well as a device having a clamping arrangement for holding the tool.

A shrink fit adapter for a collet chuck has a rear holding area that can be mounted inside a collet chuck and a front receiving area for holding a tool shank. A through opening runs from a front face of the receiving area to a rear face of the holding area. A clamping area extends into the rear holding area. Here, the adapter is formed with a plurality of slots, which extend radially outward from the through opening and are distributed over the circumference. The slots are arranged in a central area of the through opening and the front ends of the slots are spaced apart from the front face of the receiving area.

An apparatus for provisioning, in particular automatically, a complete tool having a toolholder and a tool, in particular a drilling and/or milling tool. The apparatus has a spindle that can be driven in rotation by a driving device. The spindle has a holding device for holding a toolholder. A measuring device, in particular an optical measuring device, measures a complete tool, held on the spindle. A heating device in the region of the spindle heats a shrink-fit chuck of the toolholder held on the spindle. A cooling device, in particular a cooling device associated with the spindle, enables the spindle and/or the complete tool held on the spindle, to be cooled.

A heater for shrink fit chucks has a heating cover, a blocking piece, and an adjustable blocking set. The heating cover has a first through hole, a second through hole, and a heating space disposed within the heating cover, extending along an extending direction to form the first through hole and the second through hole, and communicating with a heat gun. The blocking piece is detachably connected to the heating cover to block the first through hole and has a communicating hole capable of communicating with the first through hole. The adjustable blocking set is connected to the heating cover and has two blade assemblies and a switching component. Each blade assembly has blades disposed annular along the extending direction. The switching component is rotatable and capable of pushing the blades to move toward or depart from each other for blocking the second through hole.

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 shrink-clamping and/or unshrink-unclamping station for tools, for an at least largely automated shrink-clamping and/or unshrink-unclamping of tools into and/or from tool holders includes an induction heating unit and a cooling unit. The cooling unit can in an automated manner be brought into a heat-conductive contact with a tool holder previously heated by the induction heating unit.