Abstract:Aiming at the problem of asynchronous motion of slider of high-speed multi-station hydraulic press under the action of partial load force, three common active correction system schemes for slider of hydraulic press were compared and analyzed. According to the requirements of high-speed multi-station hydraulic press, taking a high frequency response servo valve as the core, the slider active correction device was designed, and the HNC fast active correction control system was built. The partial load test of hydraulic press was carried out, and the displacement curves on both sides of the slider were plotted.The results show that the precision of the synchronous balancing system is ±0.133 mm/m, the adjusting time is less than 0.6 s, and the maximum dynamic deviation is less than 0.350 mm/m under the action of 4 MN·m eccentric load torque, which meets the requirements of the active correcting system for high-speed multi-station hydraulic press.