Tool unit, press for holding such a tool unit and method for a ready-to-operate arrangement of the tool unit in the holder of the press

A press (21) for forming a round blank (59) comprising:

• a holder (23) for an exchangeable tool unit (20) that comprises a first tool (45) and a second tool (46) that is movably supported in a stroke direction (H) toward the first tool (45) and in a back-stroke direction (R) away from the first tool (45) along the tool axis (A),
• a positioning device (82) that comprises at least one positioning body (83) that cooperates with one assigned positioning recess (85) on the tool unit (20) respectively in order to position and/or align the tool unit (20) relative to the press (21),
• the positioning recess (85) has a form tapering from an open end toward the other end of the positioning recess (85) and the at least one positioning body (83) tapers in the backstroke direction R toward its free end, and,
• a clamping device (90) that is configured to clamp the tool unit (20) arranged in the holder (23) after the positioning device (82) has positioned and/or orientated the tool unit (20) relative to the press (21).