Hydraulic press tester for testing high speed emulation of mechanical press, has hydraulic control unit that controls operation of hydraulic press, and another hydraulic control unit that controls servo valve

摘要

The tester has a carriage (1) coupled to two hydraulic cylinders (2). A hydraulic control unit (4) controls the operation of a hydraulic press. A servo valve (5) is connected to the hydraulic cylinders, where the servo valve is connected to a high pressure accumulator (6). Another hydraulic control unit controls the servo valve, where the latter hydraulic control unit is connected to the former hydraulic control unit.