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

A technology of stable operation and hydraulic system, applied in the field of bending machines, can solve the problems that the control accuracy, control efficiency and stability of the hydraulic system cannot meet the requirements of modern production, and affect the bending quality of plates, so as to reduce the cost of processing and materials. Reduce the effect of installing empty spaces

Active Publication Date: 2018-10-23
ANHUI DONGHAI MACHINE MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] like figure 1 As shown, a hydraulic system for efficient and stable operation of a bending machine in this embodiment includes an oil pump 2 , an oil tank 16 , a hydraulic cylinder 9 and an accumulator 8 . Wherein, the oil pump 2 is connected with the motor 1, and the oil inlet of the oil pump 2 is connected with the oil tank 16, and the oil outlet of the oil pump 2 is connected with the P port of the three-position four-way electromagnetic reversing valve 3 through a pipeline on the one hand, and on the other hand On the one hand, it is also connected to the oil tank 16 through the electromagnetic overflow valve I4. The T port of the three-position four-way electromagnetic reversing valve 3 is connected to the oil tank 16 through a pipeline, and the A port of the three-position four-way electromagnetic reversing valve 3 is connected to the lower chamber of the hydraulic cylinder 9 through a stacked valve group. The B port of the electromagnetic reversing valve 3 is co...

Embodiment 2

[0037] like figure 1 As shown, a hydraulic system for efficient and stable operation of a bending machine in this embodiment includes an oil pump 2 , an oil tank 16 , a hydraulic cylinder 9 and an accumulator 8 . Wherein, the oil pump 2 is connected with the motor 1, and the oil inlet of the oil pump 2 is connected with the oil tank 16, and the oil outlet of the oil pump 2 is connected with the P port of the three-position four-way electromagnetic reversing valve 3 through a pipeline on the one hand, and on the other hand On the one hand, it is also connected to the oil tank 16 through the electromagnetic overflow valve I4. The T port of the three-position four-way electromagnetic reversing valve 3 is connected to the oil tank 16 through a pipeline, and the A port of the three-position four-way electromagnetic reversing valve 3 is connected to the lower chamber of the hydraulic cylinder 9 through a stacked valve group. The port B leading to the electromagnetic reversing valve...

Embodiment 3

[0054] A bending machine with high efficiency and stable operation in this embodiment, the bending machine includes the hydraulic system described in Embodiment 2, so that each process of bending processing, such as fast lowering, working advance, and pressure maintaining, can be Meet their respective different requirements, realize high speed, stable downward movement, stable work progress, long and stable pressure holding time, thus ensuring the accuracy, stability and bending efficiency of the entire bending process and the processing quality of the plate, so that it can Meet the needs of modern production.

[0055]Usually, the air in the oil tank 16 of the bending machine will flow in and out from the air filter 12 on the oil tank 16 in large quantities as the slider moves up and down at a high speed, but the air in and out of the oil tank 16 in this system is less than 10% of the original, and the oil tank 16 The fluctuation of the internal oil level is small, which great...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B1/02F15B11/16F15B13/06B21D5/00
CPCB21D5/00F15B1/024F15B11/16F15B13/06F15B21/008F15B2211/20515
Inventor 石贤锋
Owner ANHUI DONGHAI MACHINE MFG CO LTD
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