FIELD: electrical engineering.
SUBSTANCE: invention relates to press forming equipment. Proposed machine comprises extrusion ram, servomotor, drive power supply and capacitor. The latter is connected in between power supply positive and negative channels. Said channels connect power supply and motor drive control section. Servomotor starts running on the basis of data on extrusion ram motion on feeding electric power for forming purposes. Machine can define if drive power supply voltage between aforesaid positive and negative channels is lower than servomotor induced voltage. If it is, data related with machine speed are corrected on the basis of data on extrusion ram motion.
EFFECT: stable operation.
18 cl, 7 dwg
