The invention relates to a heavy-duty
isothermal forging press with a four corner leveling function. The heavy-duty
isothermal forging press with the four corner leveling function comprises an upper
transverse beam, a lower
transverse beam and a stand column which are connected through tie rods and lock nuts to form an integrally stressed frame body, wherein the upper
transverse beam is fixed with the bottoms of a main cylinder and a side cylinder,
piston ends of the main cylinder and the side cylinder are fixedly installed with a sliding block, an upper
cushion plate is fixedly arranged on a lower plane of the sliding block, and a movable
workbench is installed on the lower transverse beam. The heavy-duty
isothermal forging press with the four corner leveling function is characterized in that upper leveling cylinders are fixedly arranged at four corners of the upper transverse beam, lower leveling cylinders are fixedly arranged on the lower transverse beam at positions corresponding to the upper leveling cylinders on the upper transverse beam, and each of upper leveling cylinders and lower leveling cylinders has an independent leveling
control system. The heavy-duty isothermal
forging press with the four corner leveling function has the advantages that since the pressure of the leveling cylinders at a certain corner of the sliding block is controlled to be increased or decreased through a control loop and the leveling cylinders at the opposite corner are simultaneously controlled, the levelness of the sliding block in the downward
forging process is guaranteed; not only can the leveling
response time be shortened and can the sliding block leveling accuracy and production efficiency be improved, but also the loss of the main
tonnage of a
hydraulic press can be avoided, the energy can be greatly saved and the production cost is reduced.