Method for operating an elastically mounted forming machine, in particular a press

A method for operating an elastically mounted, path-bound or force-controlled forming machine, in which a working stroke of a ram device operatively connected to a drive is carried out by means of the drive, and a predefined forming process is carried out on a workpiece by a motion of the ram device during the respective working stroke, in interaction of an upper tool located on the ram device with a lower tool located on a tool table, wherein:

• at least one kinematic variable (s(t), v(t), a(t) of a rigid body motion of the elastically mounted forming machine is detected relative to the supporting foundation during the operation thereof by at least one acceleration sensor and/or by a motion sensor located between a machine housing and the supporting foundation;
• the operation of the forming machine is controlled by a machine control;
• and
• an output signal of the at least one motion sensor for detecting the at least one kinematic variable (s(t), v(t), a(t)) of the rigid body motion of the forming machine is supplied as an input signal to a machine control for controlling the forming machine, wherein:
• the time of the initiation of the working stroke is adapted by the machine control to an instantaneous phase position of the at least one kinematic variable (s(t), v(t), a(t)) of the rigid body motion in order to generate inertial forces and/or moments of inertia so that the rigid body motion of the forming machine is counteracted and so that the inertial forces and/or moments of inertia occurring during operation due to the initiation of the working stroke and/or due to an imbalance in the drive are at least partially compensated;
• a coupling device located between the drive and the ram device is activated by the machine control at the time of the initiation of the working stroke and/or for establishing an operative connection between the drive and the ram device.