Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Hydraulic machine loading system and control method thereof

A technology of loading system and control method, applied in the direction of presses, manufacturing tools, etc., can solve the problems of increased use and manufacturing costs, and achieve the effect of increasing the loading speed and speeding up the movement speed.

Inactive Publication Date: 2016-04-13
HEFEI METALFORMING MACHINE TOOL
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The working speed of the hydraulic press directly affects its working frequency. At present, the way to increase its working speed is to increase the power of the motor and the displacement of the oil pump, but it also increases the use and manufacturing costs.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Hydraulic machine loading system and control method thereof
  • Hydraulic machine loading system and control method thereof
  • Hydraulic machine loading system and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Such as figure 1 As shown, as a preferred embodiment of the present invention, there are three hydraulic cylinders, namely 20a, 20b, and 20c, and the three hydraulic cylinders 20a, 20b, and 20c are arranged in a line, wherein the upper chamber of the middle hydraulic cylinder 20b is connected with one road The loading oil passage 30 is connected, and the upper chambers of the two hydraulic cylinders 20a and 20c on the side are connected with another loading oil passage 30 .

[0018] When the slider just starts to enter the working stroke, due to the small load, the hydraulic oil provided by the pump station supplies oil to the middle hydraulic cylinder 20b through the control system, when the pressure sensor 32 of the middle hydraulic cylinder 20b detects that the pressure reaches the set pressure , the hydraulic oil provided by the pump station supplies oil to the hydraulic cylinders 20a and 20c on both sides through the control system. When the pressure sensors 32 of ...

Embodiment 2

[0020] Such as figure 2 , 3 As shown, as another embodiment of the present invention, there are four hydraulic cylinders, namely 20a, 20b, 20c, and 20d, and the four hydraulic cylinders 20a, 20b, 20c, and 20d are arranged corresponding to the four corners of the hydraulic press slider. The two hydraulic cylinders 20a, 20c or 20b, 20d located on the same diagonal line communicate with the same loading oil passage 30 .

[0021] Both of the above two embodiments can ensure that any group of piston cylinders can uniformly apply pressure to the hydraulic press slider 10, thereby avoiding the tilting of the hydraulic press slider 10 due to uneven force during the staged loading process.

[0022] The present invention also provides a control method for the loading system of the hydraulic press, comprising the following steps:

[0023] a. Turn on the pump station;

[0024] b. Open one of the loading oil passages 30, while ensuring that the other loading oil passages 30 are closed;...

Embodiment approach

[0027] 1. If figure 1 As shown, when there are three hydraulic cylinders and the three hydraulic cylinders are lined up, the loading oil passage 30 of the middle hydraulic cylinder 20b is first opened, and when the loading oil passage 30 of the middle hydraulic cylinder 20b reaches a predetermined pressure, the loading oil passage 30 is closed. Then open the loading oil circuit 30 of the hydraulic cylinders 20a, 20c on both sides. When the loading oil circuit 30 of the hydraulic cylinders 20a, 20c on both sides reaches the predetermined pressure, open the loading of the three hydraulic cylinders 20a, 20b, 20c at the same time. oil circuit 30.

[0028] 2. If figure 2 , 3 As shown, when there are four hydraulic cylinders, and when the four hydraulic cylinders are respectively arranged corresponding to the four corners of the hydraulic machine slide block 10, first open the loading oil passages 30 of the two hydraulic cylinders 20a, 20c on the same diagonal line, when the Whe...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the field of a design of hydraulic machines, in particular to a hydraulic machine loading system and a control method thereof. The hydraulic machine loading system is characterized in that hydraulic cylinders are arranged above a hydraulic machine sliding block, and the upper chambers of the hydraulic cylinders are communicated with loading oil ways; the loading oil ways comprise at least two groups, and all the loading oil ways are connected with the same pump station; each loading oil way can be singly controlled, and the upper chamber of each hydraulic cylinder is communicated with an oil tank through a charging oil way. The control method comprises the following steps: one loading oil way is opened, when a pressure sensor detects that the oil pressure of the opened loading oil way reaches the preset pressure, the other loading oil way is opened. In the premise of meeting the process demand, the loading speed of the hydraulic machine is greatly increased.

Description

technical field [0001] The invention belongs to the field of hydraulic machine design, and in particular relates to a hydraulic machine loading system and a control method thereof. Background technique [0002] Hydraulic presses are mainly used for liquid-filled stretch forming of thin plate parts in aviation, aerospace, automobile and other industries. The hydraulic press slider is generally driven by a hydraulic cylinder, and the upper cavity of the hydraulic cylinder is connected with the loading oil circuit, which is used to apply pressure to the slider to make the slider complete the stamping action. The working speed of the hydraulic press directly affects its working frequency. At present, the way to increase its working speed is to increase the power of the motor and the displacement of the oil pump, but it also increases the use and manufacturing costs. Contents of the invention [0003] The object of the present invention is to provide a hydraulic press loading ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B30B15/20
CPCB30B15/20
Inventor 李贵闪王玉山贺永森印志锋
Owner HEFEI METALFORMING MACHINE TOOL
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com