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[CN 202010651234.8] Special servo hydraulic pad control system and control method for hydraulic press
[CN 202010651234.8] A Special Servo Hydraulic Pad Control System and Control Method for Hydraulic Machines Title: A Special Servo Hydraulic Pad Control System and Control Method for Hydraulic Machines Application Number: CN 202010651234.8 Applicant: Tianjin Tianforging Press Co., Ltd. Application Date: 2020-7-8 Patent Type: Invention Application The present invention discloses a special servo hydraulic pad control system and control method for hydraulic machines, belonging to the technical field of hydraulic machines, it includes hydraulic power oil tank, hydraulic cushion pump group, hydraulic cushion oil cylinder and three-way servo cartridge valve. The hydraulic cushion pump group, pump outlet control valve block, accumulator control valve group and accumulator are connected in sequence through pipelines. The I/O port of the motion controller interacts with the return cavity pressure sensor of the hydraulic cushion cylinder, the jacking cavity pressure sensor of the pressure cushion cylinder, the hydraulic cushion position sensor and the three-way servo cartridge valve respectively; the three-way servo cartridge valve is connected with the hydraulic pad cylinder locking valve block; the hydraulic pad cylinder is connected with the three-way servo cartridge valve and the hydraulic pad cylinder locking valve block through pipelines; the hydraulic pad pump group is connected with the hydraulic power oil tank through pipelines; the three-way servo cartridge valve is connected with the pump outlet control valve block; the hydraulic pad cylinder is connected with the accumulator control valve group, the accumulator, the three-way servo cartridge valve, the hydraulic pad cylinder locking valve, and the hydraulic pad cylinder locking valve block.
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