Schenck Rotec Corporation

Andreas Buschbeck

Dieter Thelen

Matthias Breitwieser

Dieter Peiter

Angelika Stork

Disclosed is a clamping device () for clamping a toolholder of a drilling, milling or grinding tool in a balancing machine, comprising a receiver unit () having a receiving opening () for the coupling shaft of the toolholder and a collet (), in which the shaft () of an actuator () for actuation of the collet () is slidably guided in a centrally located bore () of the receiver unit (). The shaft () has at its one end a load-applying body () upon which a plurality of compression springs () take support to enable the collet () to be tightened. The compression springs () are arranged and/or configured in such a way that the spring loads acting on the load-applying body () with the collet () tightened act on the load-applying body () asymmetrically relative to the axis of the shaft ().

Clamping device

Disclosed is a clamping device of a balancing machine for coaxially clamping a toolholder on a spindle rotary about an axis of rotation (), in which the coupling shank () is supported in the receiving socket only on discrete supports (-) which are spaced from each other circumferentially and lie in three relatively spaced engagement planes (E, E, E) intersecting the axis of rotation (). Four rigid discrete supports (-) are arranged in pairs in the first (E) and the second (E) engagement plane and combine to form a rigid support in a first radial direction. Formed in the third engagement plane (E) lying between the first and the second engagement plane is a fifth discrete support () which effects a supporting function in a second radial direction opposite the first radial direction.

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Munich, Georgia

Andreas Buschbeck