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AssigneeSchunk GmbH & Co. KG Spann-Und Greiftechnik
InventorsPhilipp Schraeder, Alexander Holstein
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The invention concerns a centring device for centring a chuck on a securing portion in particular of a rotating spindle of a machine, wherein a tapered portion corresponding to a mating tapered portion on the chuck side is provided on the securing portion in such a way that the tapered portion and/or the mating tapered portion is/are formed so as to yield elastically in the axial direction such that, after the tapered portion comes into contact with the mating tapered portion, the chuck can be moved further in the axial direction, at least to a limited extent, as a result of an axial pulling-in force until the chuck comes to lie against a stop on the securing portion side. The invention likewise concerns an associated locking device.
A locking device for locking a chuck on a securing portion of a rotating spindle of a machine, wherein the securing portion comprises a centering device for centering a chuck on the securing portion, wherein the securing portion has provided on it locking means which, in a locking position, act upon the chuck with an axially acting draw-in force against the securing portion, wherein a conical portion matching with a chuck-side counterconical portion is provided on a radially outer periphery of the securing portion in such a way that the conical portion and/or the counterconical portion are/is designed to be elastically flexible in the axial direction such that, after the conical portion comes to bear against the counterconical portion, the chuck can be displaced at least to some extent further on in the axial direction on account of axial force, until the chuck comes to bear against a defined stop.
Dependencies are inferred from the claim text.