Force measuring device for a system for crimping an element on a part

A device for measuring a force applied by a fitting apparatus of an element to be crimped, said fitting apparatus being provided with a threaded rod having an internal or external thread, device comprising:

• a hydraulic chamber comprising a fluid and extending along a longitudinal axis;
• a piston configured to slide inside the hydraulic chamber along said longitudinal axis by an axial force imposed by the threaded rod on the piston;
• a threaded connector fixed to the piston, the threaded connector having an external or internal thread configured in such a way that the threaded rod screws onto the threaded connector so that the threaded rod can impose an axial force on the piston resulting in travel of the piston, along the longitudinal axis, inside the hydraulic chamber;
• a pressure gauge communicating with the hydraulic chamber and configured to measure a pressure inside the hydraulic chamber;
• and
• an anvil designed to receive a counter-support of the fitting apparatus so as to secure the fitting apparatus on the device by screwing the threaded rod onto the threaded connector and placing the counter-support against the anvil;
• the pressure gauge being configured so as to measure an increase of the pressure inside the hydraulic chamber when the threaded rod moves in the direction of the counter-support.