CN201613663U - Four-corner pressure regulation device for lower hydraulic cushion of hydraulic machine - Google Patents

Four-corner pressure regulation device for lower hydraulic cushion of hydraulic machine Download PDF

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Publication number
CN201613663U
CN201613663U CN2009202505132U CN200920250513U CN201613663U CN 201613663 U CN201613663 U CN 201613663U CN 2009202505132 U CN2009202505132 U CN 2009202505132U CN 200920250513 U CN200920250513 U CN 200920250513U CN 201613663 U CN201613663 U CN 201613663U
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CN
China
Prior art keywords
hydraulic
cushion
valve
control
pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2009202505132U
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Chinese (zh)
Inventor
邰小琴
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Tianduan Press Co Ltd
Original Assignee
Tianjin Tianduan Press Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Priority to CN2009202505132U priority Critical patent/CN201613663U/en
Application granted granted Critical
Publication of CN201613663U publication Critical patent/CN201613663U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a four-corner pressure regulation device for a lower hydraulic cushion of a hydraulic machine, and belongs to the technical field of hydraulic machines. The four-corner pressure regulation device for the lower hydraulic cushion of the hydraulic machine comprises a hydraulic pipeline and a solenoid valve, and is characterized in that the four-corner pressure regulation device for the lower hydraulic cushion of the hydraulic machine adopts the following scheme that four plunger oil cylinders are arranged at four corners of the lower hydraulic cushion, and each plunger cylinder is respectively provided with an independent hydraulic control mechanism; and the hydraulic control mechanism independently controls the lower hydraulic cushion piston cylinder to perform the actions of extension or ejection and recession. The four-corner pressure regulation device has the advantages of simple structure, convenient control, stability and reliability, complete function, favorable performance, low operation cost, easy press forming of complex workpieces, etc., thereby being widely applicable to the industry of hydraulic machines.

Description

A kind of four corner pressure regulating device of lower hydraulic cushion on hydraulic machine
Technical field
The utility model belongs to the hydraulic press technical field, particularly relates to a kind of four corner pressure regulating device of lower hydraulic cushion on hydraulic machine.
Background technology
At present, continuous development along with science and technology, people are also improving constantly the requirement of hydraulic press, hope on general hydralic stamping press, also can realize to the irregular workpiece of complexity stretch, function such as bending, moulding, want to realize these functions so, how better regulating down, the pressure of hydraulic die cushion has just become subject matter.Existing technology can't be carried out four jiaos by required reasonable pressure regulation, causes four jiaos of pressure adjusting difficulties when stretching, and the hydraulic problems that can't satisfy production demand, particularly special workpiece is more outstanding.
Summary of the invention
The utility model provides a kind of four corner pressure regulating device of lower hydraulic cushion on hydraulic machine for solving the technical problem that exists in the known technology.
The purpose of this utility model provides that a kind of to have simple in structure, convenient, reliable and stable a, complete function of control, function admirable, operating cost low, is easy to realize the four corner pressure regulating device of lower hydraulic cushion on hydraulic machine of the characteristics such as compression moulding of complex part.
The control system of four jiaos of pressure regulation of hydraulic die cushion under the utility model is four plunger cylinders of four jiaos of layouts at following hydraulic die cushion, and an independently hydraulic control system is set on each oil cylinder.In the control system, the hydraulic die cushion cylinder participates in the drawing process action, is to overlap independently mini system; The jack-up of liftout tank control hydraulic die cushion, return, be another set of independently mini system.By controlling the break-make of different magnetic valves.The stretching operating pressure that the following hydraulic die cushion of proportional pressure control valve control is four jiaos is selected the corresponding proportional pressure control valve of hydraulic die cushion cylinder, controls the pressure of itself.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is:
A kind of four corner pressure regulating device of lower hydraulic cushion on hydraulic machine, comprise conduit under fluid pressure and magnetic valve, be characterized in: the four corner pressure regulating device of lower hydraulic cushion on hydraulic machine is that hydraulic die cushion is provided with four plunger cylinders for four jiaos down, and each plunger cylinder is provided with an independently hydraulic control; Hydraulic control controls independently down that the hydraulic die cushion piston cylinder stretches or jack-up, return.
The utility model can also adopt following technical scheme:
The four corner pressure regulating device of described lower hydraulic cushion on hydraulic machine is characterized in: hydraulic control is respectively that proportional pressure control valve, safety valve and prefill valve connect and compose independently jack-up, the back body that controlling organization and inserted valve group constitute that independently stretch.
The four corner pressure regulating device of described lower hydraulic cushion on hydraulic machine is characterized in: hydraulic control is provided with Programmable Logic Controller and pressure sensor, and Programmable Logic Controller connects control ratio overflow valve, inserted valve group and pressure sensor.
Advantage and the good effect that the utlity model has are:
The four corner pressure regulating device of lower hydraulic cushion on hydraulic machine is owing to adopted the utility model brand-new technology scheme, compared with prior art, the utility model is applied in proportional pressure control valve on the hydraulic press can effectively regulate liquid working pressure, its control is stable, reliably, and after being applied in this technology on the hydraulic press, can make the type hydraulic press have stretching, crooked, in the time of technologies such as moulding, also have functions such as stretching to the irregular workpiece of complexity, make the function of press more comprehensive, performance is more good, while is according to the profile difference of processing work, regulate four jiaos of pressure participations of hydraulic die cushion work down arbitrarily, reduce the operating cost of processing, be easy to realize the compression moulding of complex part.So this technology has highly application value.
Description of drawings
Fig. 1 is the four corner pressure regulating device hydraulic principle structural representation of the utility model lower hydraulic cushion on hydraulic machine.
Among the figure, hydraulic die cushion, 2-plunger cylinder, 3-liftout tank, 4-prefill valve, 5-pressure sensor, 6-proportional pressure control valve, 7-pressure valve plug-in unit cover plate, 8-safety valve, 9-pressure measuring tie-in, 10-pressure switch, 11-Pressure gauge, 12-inserted valve group, 13-manual pressure regulating valve, 14-oil pipe under the 1-.
The specific embodiment
For further understanding technology contents of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
Consult accompanying drawing 1.
Embodiment 1
A kind of four corner pressure regulating device of lower hydraulic cushion on hydraulic machine, comprise conduit under fluid pressure and magnetic valve, the four corner pressure regulating device that is characterized in lower hydraulic cushion on hydraulic machine is that hydraulic die cushion is provided with four plunger cylinders 2 for four jiaos down, and each plunger cylinder is provided with an independently hydraulic control; Hydraulic control controls independently down that the hydraulic die cushion piston cylinder stretches or jack-up, return.
Hydraulic control is respectively that proportional pressure control valve, safety valve and prefill valve connect and compose independently jack-up, the back body that controlling organization and inserted valve group 12 constitute that independently stretch.Hydraulic control is provided with Programmable Logic Controller and pressure sensor, and Programmable Logic Controller connects control ratio overflow valve, unidirectional prefill valve 4, inserted valve group and pressure sensor.
The concrete course of work of present embodiment:
The four corner pressure regulating device of lower hydraulic cushion on hydraulic machine, proportional overflow valve 6, pressure valve plug-in unit cover plate 7, safety valve 8, pressure measuring tie-in 9, oil pipe 14, its proportional pressure control valve 6 (YAA, YAB, YAC, YAD) control is the tensile pressures of hydraulic die cushion 1 down, liftout tank 3 is controlled the jack-up of following hydraulic die cushion 1 and is return, and pressure measuring tie-in 9 can record the abutment pressure of liftout tank; What pressure sensor 5 (BP1, BP2, BP3, BP4) detected is the tensile pressures of the following hydraulic die cushion 1 in the work, and the data that record are fed back among the PLC, by the conversion process of data, is presented on the control box, and the handled easily person reads and be provided with running parameter.Manual pressure regulating valve 13 is regulated abutment pressure, and Pressure gauge 11 shows liftout tank pressure, and pressure switch 10 detects liftout tank pressure.

Claims (3)

1. the four corner pressure regulating device of a lower hydraulic cushion on hydraulic machine, comprise conduit under fluid pressure and magnetic valve, it is characterized in that: the four corner pressure regulating device of lower hydraulic cushion on hydraulic machine is that hydraulic die cushion is provided with four plunger cylinders for four jiaos down, and each plunger cylinder is provided with an independently hydraulic control; Hydraulic control controls independently down that the hydraulic die cushion piston cylinder stretches or jack-up, return.
2. according to the four corner pressure regulating device of the described lower hydraulic cushion on hydraulic machine of claim 1, it is characterized in that: hydraulic control is respectively that proportional pressure control valve, safety valve and prefill valve connect and compose independently jack-up, the back body that controlling organization and inserted valve group constitute that independently stretch.
3. according to the four corner pressure regulating device of the described lower hydraulic cushion on hydraulic machine of claim 2, it is characterized in that: hydraulic control is provided with Programmable Logic Controller and pressure sensor, and Programmable Logic Controller connects control ratio overflow valve, inserted valve group and pressure sensor.
CN2009202505132U 2009-11-19 2009-11-19 Four-corner pressure regulation device for lower hydraulic cushion of hydraulic machine Expired - Fee Related CN201613663U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009202505132U CN201613663U (en) 2009-11-19 2009-11-19 Four-corner pressure regulation device for lower hydraulic cushion of hydraulic machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009202505132U CN201613663U (en) 2009-11-19 2009-11-19 Four-corner pressure regulation device for lower hydraulic cushion of hydraulic machine

Publications (1)

Publication Number Publication Date
CN201613663U true CN201613663U (en) 2010-10-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009202505132U Expired - Fee Related CN201613663U (en) 2009-11-19 2009-11-19 Four-corner pressure regulation device for lower hydraulic cushion of hydraulic machine

Country Status (1)

Country Link
CN (1) CN201613663U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107288959A (en) * 2017-08-09 2017-10-24 江苏理工学院 A kind of large hydraulic press crossbeam leveling hydraulic system
CN108638568A (en) * 2018-04-25 2018-10-12 天津市天锻压力机有限公司 A kind of energy-conserving hydraulic for hydraulic press pads control system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107288959A (en) * 2017-08-09 2017-10-24 江苏理工学院 A kind of large hydraulic press crossbeam leveling hydraulic system
CN107288959B (en) * 2017-08-09 2019-06-11 江苏理工学院 A kind of large hydraulic press crossbeam leveling hydraulic system
CN108638568A (en) * 2018-04-25 2018-10-12 天津市天锻压力机有限公司 A kind of energy-conserving hydraulic for hydraulic press pads control system
CN108638568B (en) * 2018-04-25 2021-06-08 天津市天锻压力机有限公司 Energy-saving hydraulic cushion control system for hydraulic machine

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20101027

Termination date: 20101119

C17 Cessation of patent right