| 摘要 |
The invention concerns a clamping connection for an interchangeable mandrel ( 1 ) and drive shaft ( 13 ) of a riveting tool. The connection comprises a connecting casing ( 15 ) to which the end of the drive shaft ( 13 ) is fastened on one side, while on the other side there is an open cavity in the casing ( 15 ), adapted for inserting the end of the interchangeable mandrel ( 1 ), in a transverse direction, until its expanded end part is inside the cavity and its axis lies along the axis of the drive shaft ( 13 ) and the casing ( 15 ), where the interchangeable mandrel ( 1 ) in this position is moveable in the direction of the common axis by the action of a pressure element across engaging, rolling surfaces arranged on the front surface of the expanded end part of the interchangeable mandrel ( 1 ) and on the adjacent surface of the pressure element, to the clamped position where the interchangeable mandrel ( 1 ) is gripped by its expanded end part in the cavity of the casing ( 15 ) by means of a correspondingly shaped surface, arranged in the cavity of the casing ( 15 ), with the possibility of axial movement and secured against rotation.
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