An efficient and stable operation of a bending machine and its hydraulic system

Abstract

The invention discloses a bending machine capable of operating efficiently and stably and a hydraulic system thereof and belongs to the technical field of bending machines. In the bending machine, an oil inlet of an oil pump is connected with an oil tank, and an oil outlet of the oil pump is connected with a port P of a three-position four-way electromagnetic reversing valve through a pipeline; a port T of the three-position four-way electromagnetic reversing valve is connected with the oil tank through a pipeline, a port A of the three-position four-way electromagnetic reversing valve is connected to a lower cavity of a hydraulic cylinder through a sandwich valve group, and a port B of the three-position four-way electromagnetic reversing valve is connected to an upper cavity of the hydraulic cylinder through a sandwich valve group; and the upper cavity of the hydraulic cylinder is also connected with an energy accumulator through a hydraulic control one-way valve. According to the bending machine, the hydraulic system is adopted, efficient control over the whole process of plate bending can be realized, and high speed and stability in the fast descending stage and the stability in the working feeding stage are ensured; and meanwhile, the pressure maintaining effect is good, the oil pressure of the upper cavity of the oil cylinder is stable in the pressure maintaining stage, so that the bending quality of plates is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of bending machines, and more specifically relates to a bending machine with efficient and stable operation and a hydraulic system thereof. Background technique [0002] With the development of the processing industry, the current bending machine products have been widely used in different fields such as electromechanical, sheet metal, light industry, aviation, shipbuilding, instrumentation, electrical appliances, stainless steel products, steel structure construction and metallurgical industries. It can cut various steel plates, stainless steel, copper plates, aluminum plates and non-metallic material plates, and can also be used to fold the plates into different shapes such as V shape, arc shape, circle or right angle. The structure of the existing bending machine mainly includes a bracket, a workbench and a clamping plate. The workbench is placed on the bracket. The workbench is composed of a base and a p...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the control accuracy, control efficiency and stability of the hydraulic system of the existing bending machine, which is difficult to meet the needs of modern production, thereby affecting the quality of plate bending, and to provide a bending machine with efficient and stable operation and its hydraulic system

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