1. The moving speed of the movable beam of the hydraulic press depends on the liquid supply of the pump, and has nothing to do with the deformation resistance of the forging during processing. If the liquid supply of the pump is constant, the working speed of the oil press is also constant.
2. The liquid supply pressure and power consumed by the pump are related to the deformation resistance of the machined workpiece. When the working deformation resistance is large, the liquid supply pressure and power consumed by the pump are also large, and vice versa.
3. The constant travel speed of the movable beam and the change of pump supply pressure can be used as signals to control the distributor, thus realizing the automatic control of the hydraulic press.
4. Low capital investment, small floor space and simple daily maintenance. The hydraulic pump in the pump direct drive system is selected according to the maximum working speed and working pressure of the hydraulic press, but when the oil filling stroke, return stroke, auxiliary process and required working pressure of the hydraulic press are small, the hydraulic pump is not fully utilized, especially for the large-tonnage hydraulic press, and its utilization coefficient is very low. Therefore, the hydraulic press tends to drive the working speed and pressure in stages.
The use of hydraulic press:
It is widely used in parts processing of automobile industry, shaping, trimming and correction of various products in various industries, press-fitting and stamping of shoes, handbags, rubber, molds, shafts and sleeves, bending, stamping and sleeve stretching of plate parts, washing machines, motors, automobile motors, air-conditioning motors, micromotors, servo motors, wheel manufacturing, shock absorbers, motorcycles and machinery.
Hydraulic press (a kind of hydraulic press) is a kind of hydraulic press with special hydraulic oil as working medium and hydraulic pump as power source. The hydraulic oil enters the cylinder/piston through the hydraulic pipeline under the action of the pump, and then there are several sets of seals in the cylinder/piston. The seals in different positions are different, but they all play a sealing role, so that the hydraulic oil will not leak. Finally, the hydraulic oil circulates in the oil tank through the one-way valve, so that the oil cylinder/piston does work circularly, thus completing certain mechanical actions as a productivity machine.