PUNCH FOR A STAKING AND/OR RIVETING DEVICE AND METHOD FOR STAKING OR RIVETING A WORKPIECE

摘要

The invention relates to a punch (30) for a staking and/or riveting device with a workpiece receiving opening (32) that is formed on a pressing surface (34) of the punch (30) such that a workpiece projecting from a contact surface (26) can be at least partially inserted in the workpiece receiving opening (32) by the approach of the pressing surface (34) of the punch (30) to the contact surface (26), and can be deformed according to an inner contour of the workpiece receiving opening (32), wherein at least one portion of the surface (36) of the inner contour is in the form of a spherical cap or ellipsoidal cap, and the inner contour of the workpiece receiving opening (32) has an inner contour intermediate surface (40) that lies between one edge (38) of the inner contour on the pressing surface (34) and the spherical cap or ellipsoidal cap surface portion (36) and is in the form of a cylinder jacket or truncated cone jacket. The invention also relates to a staking and/or riveting device, a joining partner for co-operating with the punch or with the staking and/or riveting device, a device with at least one staked or riveted workpiece, and a method for staking or riveting a workpiece.