Analysis Unit and Method for Determining at Least One Forming Process Characteristic of a Servo Press

An analysis unit for ascertaining a forming process characteristic of a servo press, comprising:

• a processor;
• memory accessed by the processor;
• a first unit for determining a torque profile of a motor of the servo press, said torque profile belonging to a first cycle of the servo press, the first cycle describing a forming process without an item to be processed by the servo press;
• a second unit for determining a torque profile of the motor of the servo press, said torque profile belonging to a second cycle of the servo press, the second cycle describing a forming process with an item to be processed by the servo press;
• and
• a third unit for ascertaining the at least one forming process characteristic from a comparison of the torque profile belonging to the first cycle with the torque profile belonging to the second cycle.

An analysis unit comprising:

• a processor;
• memory accessed by the processor;
• an interface to an edge device or a cloud service for at least one of:
• transmitting one of (i) ascertained forming process characteristics and (ii) ascertained forming process characteristics and associated servo press characteristics, (iii) material characteristics and (iv) process characteristics and
• receiving one of (i) reference forming process characteristics and (ii) suggested action data based on transmitted ascertained forming process characteristics, said suggested action data having been evaluated by the cloud service.

A non-transitory computer-readable medium encoded with a computer program when, when executed by a program-controlled device, causes determination of at least one forming process characteristic of a servo press, the computer program comprising:

• program code for determining a torque profile of a motor of the servo press, said torque profile belonging to a first cycle of the servo press, and the first cycle describing a forming process without an item to be processed by the servo press;
• program code for determining a torque profile of the motor of the servo press, said torque profile belonging to a second cycle of the servo press, a second cycle describing a forming process with an item to be processed by the servo press;
• and
• program code for comparing the torque profile belonging to the first cycle with the torque profile belonging to the second cycle to ascertain the at least one forming process characteristic.