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[CN 201710765683.3] Electro-hydraulic hybrid press and control method thereof
[CN 201710765683.3] An Electro-hydraulic Hybrid Press and Its Control Method Title: An Electro-hydraulic Hybrid Press and Its Control Method Application Number: CN 201710765683.3 Applicant: Hefei University of Technology Application Date: 2017-8-30 Patent Type: Invention Application The present invention discloses an Electro-hydraulic Hybrid Press and its control method. Two vertical hydraulic cylinders are arranged on the upper beam plate of the press body, two hydraulic cylinders and one-to-one corresponding working tables form left and right working units. A common mechanical drive unit and hydraulic drive unit are provided for the left and right working units. The mechanical drive unit is composed of a screw nut transmission mechanism driven by a drive motor through an electromagnetic clutch, an electromagnetic brake and a gear pair. According to the load characteristics of the working process of the hydraulic press, the mechanical drive unit or the hydraulic drive unit is selected to provide energy for the two working units. The invention maintains synchronous movement by setting double hydraulic cylinders and realizing rigid connection through the mechanical drive unit, so that the potential energy of the moving parts can be recycled, energy loss is reduced, the advantages of hydraulic transmission and mechanical transmission are integrated, and the work of the press is effectively improved. Efficiency and precision.
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