Patent ID: 11878398
Assignee: GUSTAV KLAUKE GMBH
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC B  H | IPC B  H

Claim 0:
1. A pressing tool for performing a pressing operation for the press-fitting of parts, wherein one part can have different outer dimensions within a specified range, the pressing tool comprising:
a tool part for acting on the part, the tool part is part of a pivoting jaw having an action surface, the pivoting jaw being pivotable around a pivot axis from a starting position having a greatest opening width into a pressing position having a smaller opening width;
a hydraulic cylinder; and
a hydraulic piston movable in the hydraulic cylinder, which applies a piston force depending on a hydraulic pressure in the hydraulic cylinder, wherein each time the hydraulic piston is moved, the pressing operation automatically ends once a same maximum piston force has been reached, the hydraulic piston having a roller forming an interactive surface connected with the hydraulic piston for a force-transmitting interaction of the hydraulic piston with the action surface, wherein the piston force can be converted into a deviating pressing force due to a geometry of the action surface, wherein the action surface provides a higher pressing force to a larger opening width of the pivoting jaw once a maximum piston force has been reached, and the action surface provides a smaller pressing force in comparison to the higher pressing force to each smaller opening width of the pivoting jaw in comparison to the larger opening width once the maximum piston force has been reached.