Franz Haimer Maschinenbau Kg

Haimer Gmbh

Bernhard Regau

Franz Haimer

Josef Haimer

Joseph Haimer

The invention relates to a tool holder comprising a tool receptacle in the form of a sleeve part, which comprises a tool receptacle opening comprising a mating surface which is concentric with the axis of rotation of the tool holder and on which the shaft of a tool inserted in accordance with the intended purpose thereof into the tool receptacle opening of the sleeve part can be fixed in a press fit, wherein the sleeve part comprises a number of circumferential recesses from the side of the mating surface, wherein the recesses divide the mating surface into several mating surface segments which are comparable to each other and which are substantially inherently rigid in the axial direction, wherein the radial depth of the recesses is selected such that the press fit releases substantially uniformly on all mating surface segments under the influence of heat applied over the outer circumference of the sleeve part.

Shrink fit chuck having extension grooves

To set the length of a rotary tool (), to be thermally shrunk in place in a tool holder (), by means of an inductive heating device (), a setting device is provided with a positioning holder () for the rotary tool (), this positioning holder () being freely displaceable, but lockable, along a guide () and its tool push-in movement into the thermally expanded tool holder () being limited by a stop (). The rotary tool () bears with its tip () against a stop () of the positioning holder (). By means of a length-measuring device (), the stop () limiting the push-in movement can be limited to a position in which the tip () of the rotary tool () is at a predetermined distance from a reference surface () of a holder receptacle (), holding the tool holder () during the shrink-fitting operation, or from a corresponding reference surface of the tool holder ().

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Unterwittelsbach, Germany

Bernhard Regau