Working principle of hydraulic press machine
The oil pump delivers the hydraulic oil to the integrated cartridge valve block, and distributes the hydraulic oil to the upper cavity or lower cavity of the cylinder through various one-way valves and overflow valves, and makes the cylinder move under the action of high-pressure oil. It is a device that uses liquid to transmit pressure.
The working principle of hydraulic press machine. The areas of the large and little plungers are S2 and S1 respectively, and the forces on the plungers are F2 and F1 respectively. According to Pascal’s principle, the pressure of a closed liquid is equal everywhere, that is, F2/S2=F1/S1=p; F2=F1(S2/S1). It represents the gain effect of hydraulic press machine. Like mechanical gain, the force increases, but the work does not gain. Therefore, the movement distance of the large plunger is S1/S2 times the movement distance of the little plunger.
This equipment is especially suitable for various processes such as bending, forming, and flanging of central load parts. After being equipped with a punching buffer device, it can also be used for punching and blanking processing. It is used in the shipbuilding industry, the pressure vessel industry, the chemical industry, and other industries. The product of choice.
It is used for the stretching, forming, turning, bending, and stamping of sheet metal parts. It can also be used for general pressing processes. Punching buffering, punching, moving tables and other devices can be added according to user needs.
In addition to forging and forming, the three-beam four-column hydraulic press machine can also be used for straightening, packing, briquetting, and pressing.
It can also be used for the pressing process of shaft parts, the calibration, crimping, pressing process of profile and the bending, argumentation, shaping, embossing, sleeve molding, stretching, and pressing process of plastic materials, such as stamping, bending, turning edge thin stretching and other operations can also be engaged in calibration, press fitting, plastic products, and powder products compression molding operations. Because of its wide range of applications, it is also called a universal hydraulic press machine.