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[CN 201611034086.5] Electro-hydraulic controlled pressure machinery providing stable pressure
[CN 201611034086.5] Electro-hydraulic Control Pressure Machinery Providing Stable Pressure Title: Electro-hydraulic Control Pressure Machinery Providing Stable Pressure Application Number: CN 201611034086.5 Applicant: Tianjin Zhouhan Technology Co., Ltd. Application Date: 2016-11-22 Patent Type: Invention Application The present invention discloses an electro-hydraulic control pressure machinery providing stable pressure, including an actuator and a hydraulic control mechanism; The hydraulic control mechanism includes: first and second accumulators; the first inlet pipeline and the second inlet pipeline; three-position five-way reversing valve; booster mechanism; linkage mechanism; hydraulic buffer control mechanism. The pressure boosting mechanism of the hydraulic control mechanism cooperates with the hydraulic buffer control mechanism so that when the stamping rod enters the third stroke section to cause elastic-plastic deformation of the workpiece, it meets the requirement of gradually increasing pressure during elastic-plastic deformation of the workpiece. The hydraulic control mechanism makes the stamping rod meet the pressure changes of the three stroke sections, so that the stamped workpiece has better rigidity and the scrap rate of the stamped workpiece is lower. The three-position five-way reversing valve and the stamping rod are linked through the linkage mechanism. The pressure provided by the accumulator is more stable than the pressure provided by the oil pump, so that the processed workpiece has good performance stability and higher interchangeability.
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