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[CN 201611035939.7] Electro-hydraulic Control Pressure Machinery with Voltage Stabilization Function and Return Pressure Dwell Function
[CN 201611035939.7] Electro-hydraulic Control Pressure Machinery with Voltage Stabilization Function and Return Pressure Holding Function Title: Electro-hydraulic Control Pressure Machinery with Voltage Stabilization Function and Return Pressure Holding Function Application Number: CN 201611035939.7 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 with voltage stabilization function and return pressure holding function, including an actuator and a hydraulic control mechanism; the actuator; the hydraulic control mechanism includes: first and second accumulators; the first oil inlet pipeline and the second oil inlet pipeline; the three-position five-way reversing valve; the booster mechanism; the linkage mechanism; the 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 the elastic-plastic deformation of the workpiece, the pressure is continuously increased, so as to meet the requirement of the gradual increase of the pressure during the elastic-plastic deformation of the workpiece, so that the rigidity of the stamped workpiece is better, 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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