Hydraulic press control system, and method for machining automotive interiors by hydraulic press control system
A technology for automotive interior parts and control systems, applied to presses, manufacturing tools, etc., can solve problems such as pressure position overshoot, piston rod self-heaviness, etc.
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[0023] Such as figure 1 As shown, the hydraulic machine control system of the present invention includes a master cylinder 1 that drives a slider. The upper cavity of the master cylinder 1 is connected to a charging tank through a hydraulically controlled charging valve D3. The inlet of the servo pump is connected to the main oil tank. The pump includes a low-pressure large-flow pump PD1 and a high-pressure small-flow pump PD2 driven by the same servo motor M1. The outlet of the low-pressure large-flow pump PD1 is connected to the inlet of the first check valve D1, and the outlet of the high-pressure small-flow pump PD2 is connected to the first one. The outlet of the one-way valve D1 is connected in parallel, the outlet of the first one-way valve D1 is connected with the inlets of the second cartridge valve C2, the third cartridge valve C3 and the fourth cartridge valve C4, and the outlet of the third cartridge valve C3 is connected with The inlet of the second check valve D2 i...
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