Air drive hydraulic power system used on corner combination machine

Abstract

Provided is an air drive hydraulic power system used on a corner combination machine. The power system comprises an air source, an air source switching valve, an air source treatment device A, two two-position five-way solenoid valves, two two-position three-way solenoid valves, an air-hydraulic converter and an air-hydraulic pressure cylinder, wherein the air inlet and the air outlet of the air source switching valve are communicated with the air inlet of the air source and the air inlet of the air source treatment device A respectively, the air inlets of the four solenoid valves are all communicated with the air outlet of the air source treatment device A, the forward-movement air outlet and the backward-movement air outlet of one two-position five-way solenoid valve are communicated with the air inlet of the air-hydraulic converter and the air inlet of a positioning cylinder respectively, and the forward-movement air outlet and the backward-movement air outlet of the other two-position five-way solenoid valve are communicated with the forward air inlet and the backward air inlet of the air-hydraulic pressure cylinder respectively; the oil inlet of an air-hydraulic pressurizer is communicated with the oil outlet of the air-hydraulic converter, and the oil outlet of the air-hydraulic pressurizer is communicated with the oil inlet of a corner combination cylinder in parallel; the air outlets of the two two-position five-way solenoid valves are communicated with the air inlet of the corner combination cylinder and the air inlet of a pressing cylinder respectively. The power system has the advantages of being high in working efficiency, capable of saving energy, free of noise and pollution, stable in output pressure and the like.

Description

technical field [0001] The invention relates to the technical field of profile corner assembly equipment, in particular to an air-driven hydraulic power system on a corner assembly machine. Background technique [0002] At present, the power system on the profile corner machine is a hydraulic power system, that is, the hydraulic station provides pressure oil as the power source. Then it is sent to each hydraulic actuator through the pipeline. The hydraulic actuators include positioning cylinders, corner cylinders and pressing cylinders. The above-mentioned hydraulic drive system has the disadvantages of low working efficiency (4 corners per minute), high power consumption, high noise and serious pollution. In addition, when working for a long time, there will be problems such as oil heating, power performance decline and pressure instability, and sometimes multiple reciprocating actions are required to complete a group angle. Contents of the invention [0003] In order ...

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Problems solved by technology

The above-mentioned hydraulic drive system has the disadvantages of low working efficiency (4 angles per minute), high power consumption, high noise and serious pollution

In addition, when working for a long time, there will be problems of oil heating and temperature rise, power performance decline and pressure instability. Sometimes it takes multiple reciprocating actions to complete a group angle

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