Pressure machine closed height adjusting device and control system thereof

Abstract

The invention relates to a pressure machine closed height adjusting device and a control system thereof. A hydraulic cylinder and a slider have a connected structure, or a divided structure; a piston rod of the hydraulic cylinder is hinged with one end of a connecting rod, and the other end of the connecting rod is connected with a crank shaft in a suitable mode; a control oil way of an upper cylinder hydraulic control one-way valve is communicated with an oil inlet of a lower cylinder hydraulic control one-way valve; the control oil way of the lower cylinder hydraulic control one-way valve is communicated with the oil inlet of the upper cylinder hydraulic control one-way valve; the oil inlets of the lower cylinder hydraulic control one-way valve and the upper cylinder hydraulic control one-way valve are respectively connected with two oil outlets of a two-position three-way solenoid valve, and an oil return opening of the two-position three-way solenoid valve is directly connected with an oil tank; a three-way connector is respectively connected with the oil inlet of the two-position three-way solenoid valve, the oil outlet of an oil pump and a main line overflow valve; and the oil outlet of the main line overflow valve is directly communicated with the oil tank, and the oil inlet of the oil pump is connected with an oil filter, and then communicated with the oil tank.

Description

technical field [0001] The invention relates to a press control system, in particular to a press closed height adjusting device and a control system thereof. It belongs to the technical field of forging and pressing machinery. Background technique [0002] In order to facilitate the installation, replacement and maintenance of molds, and in order to adjust parameters such as over-modulus in production, a closed height adjustment mechanism is set in the slider linkage mechanism of the press. At present, the closed height adjustment mechanism is carried out by the method of mechanical transmission. This adjustment method is not only complicated in structure, difficult to manufacture, more troublesome to adjust, and also has a high failure rate. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a press closed height adjustment device and a control system thereof, which overcomes the complex structure of the existing closed height adjustment...

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Problems solved by technology

[0003] The object of the present invention is to provide a press closed height adjustment device and its control system, which overcomes the complex structure, difficult manufacture and relatively difficult adjustment of the existing closed height adjustment mechanism due to the use of mechanical transmission. Troublesome, but also a defect with a high failure rate

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