Visualized press working and new feedback control for servo press

Abstract A 4-axes direct drive servo press which has a structure using ball screws as boosting press pressure mechanism, has made it possible for high precision press forming, and furthermore has made it possible to visualize processing state by digital information from the servo press [1]. However, all information of the processing state could not be visualized from only the servo press. Therefore, a certain processing system was developed in which some additional sensors are installed in the mold in order to measure the other processing state, and mold information and press one are combined, then those information are fed back to the servo press. That made it possible for much higher precision product processing.