CN102363345A - Control system for leveling four corners of hydraulic press - Google Patents
Control system for leveling four corners of hydraulic press Download PDFInfo
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- CN102363345A CN102363345A CN2011101832552A CN201110183255A CN102363345A CN 102363345 A CN102363345 A CN 102363345A CN 2011101832552 A CN2011101832552 A CN 2011101832552A CN 201110183255 A CN201110183255 A CN 201110183255A CN 102363345 A CN102363345 A CN 102363345A
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Abstract
The invention relates to a control system for leveling four corners of a hydraulic press. A technical scheme adopted in the invention is characterized in that: four corners of a bottom end rail of the hydraulic press are respectively provided with a leveling mechanism, the leveling mechanisms at the four corners have a completely same structure respectively, each leveling mechanism comprises a piston cylinder corresponding with one corner of the bottom end rail and a valve body which is communicated with the piston cylinder and controls the oil amount of the piston cylinder, the valve body is communicated with high pressure pump incoming oil and is connected with the control system, and one side of the piston cylinder is provided with a linear displacement ruler which is connected with the control system; and the valve body comprises pressure sensors, superposed overflow valves and a proportion servo valve which are successively arranged on the oilway for the oil supply to the piston cylinder and are connected with the control system, the pressure sensors and the proportion servo valves are respectively connected with the control system, and the proportion servo valves are connected with the high pressure pump incoming oil through pipelines. The control system of the invention, which allows a nonparallel problem in the slide block compacting, which is caused by different deformation resistances at different places of a slide block because of the unsymmetrical pressure center of a product, to be solved, allows usage performances of the press to be substantially improved, and high level technical requirements of high end clients to be satisfied.
Description
Technical field
The present invention relates to a kind of titanium electrode bar forming hydraulic press, particularly relate to a kind of four-corner leveling control system of hydraulic press.
Background technology
Along with the continuous development of plate forming industry technologies such as automobile, subway, light rail, safety glass fiberizing product rely on high strength, high tenacity, the characteristic of self controlled, adhere to the ideal substitute that advantages such as lacquer anti-ly collides with, low weight, low cost become steel-product rapidly.Owing to there is bigger and irregular stress in the safety glass fiberizing process, make the glass fiber reinforced plastics product mould more and more accurate, not only very high to position accuracy demand, especially the horizontal accuracy in the slide block pressing process there has been higher requirement.
Present known composite product hydraulic press, because this body structure is limit, slide block down speed is 300mm/s; Therefore, be not suitable for suppressing the large glass steel part as plate forming article such as automobile, subway, light rail, this is because these glass fiber reinforced plastics products of compacting can make moved cross beam four limit discontinuity; And the situation that unbalance loading takes place in pressing process is serious, and the unbalance loading of spun work can make the easy run-off the straight deviation of moved cross beam excessive, hydraulic press fuselage ring discontinuity; The generation of this situation; Downtrodden workpiece is weighed because of quality is not good then also can mold damage, pulls the fuselage guide rail, influences the service life of hydraulic press.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of employing the corresponding servo valve of four jiaos of four oil cylinders of sill to be carried out the four-corner leveling control system of the hydraulic press of dynamic closed-loop adjustment.
The technical scheme that the present invention adopted is: a kind of four-corner leveling control system of hydraulic press; Place, four angles at the sill of hydraulic press respectively is provided with one group of levelling gear; The structure of the levelling gear at said four angles is identical; Described levelling gear includes a corresponding piston cylinder in angle with sill, is communicated with the also valve body of control piston cylinder oil mass with piston cylinder, and described valve body and high-pressure pump come oil to be communicated with; And link to each other with the control system, a side of described piston cylinder also is provided with the straight-line displacement chi that links to each other with the control system.
Described valve body includes and is successively set on the oil circuit of piston cylinder fuel feeding and the pressure sensor that links to each other with the control system, superposing type overflow valve and proportional servo valve; Wherein, Described pressure sensor and proportional servo valve be connection control system respectively, and described proportional servo valve connects high-pressure pump oil through pipeline.
Described pressure sensor and superposing type overflow valve respectively are provided with one respectively on the in-line of piston cylinder and fuel-displaced pipeline.
The oil inlet end of described proportional servo valve is provided with Oil-pressure joint.
The four-corner leveling control system of hydraulic press of the present invention; Slide block leveling precision in compacting is reached ± 0.05mm; Solved because the Center of Pressure of product is asymmetric, the deformation drag everywhere of caused slide block is different, a uneven difficult problem in the compacting slide block compacting that is caused; Improve the serviceability of press so greatly, can satisfy the technological requirement of some high-end customer higher levels.
Description of drawings
Fig. 1 is an overall structure sketch map of the present invention.
The 1-piston cylinder; The 2-proportional servo valve; The 3-pressure sensor; 4-straight-line displacement chi; The 5-valve body; 6-superposing type overflow valve; The 7-Oil-pressure joint; The 8-high-pressure pump comes oil.
The specific embodiment
Provide specific embodiment below in conjunction with accompanying drawing, how the four-corner leveling control system that further specifies hydraulic press of the present invention realizes.
As shown in Figure 1; The four-corner leveling control system of hydraulic press of the present invention; Be at the place, four angles of the sill of hydraulic press one group of levelling gear to be set respectively, the structure of the levelling gear at said four angles is identical, and described levelling gear includes the corresponding piston cylinder 1 in an angle with sill; Be communicated with the also valve body 5 of control piston cylinder 1 oil mass with piston cylinder 1; Described valve body 5 comes oil 8 to be communicated with high-pressure pump, and links to each other with the control system, and a side of described piston cylinder 1 also is provided with the straight-line displacement chi 4 that links to each other with the control system.
Described valve body 5 includes pressure sensor 3, superposing type overflow valve 6 and the proportional servo valve 2 that is successively set on the oil circuit of piston cylinder 1 fuel feeding; Wherein, Described pressure sensor 3 and proportional servo valve 2 difference connection control system, described proportional servo valve 2 connects high-pressure pump oil 8 through pipeline.Described pressure sensor 3 and superposing type overflow valve 6 respectively are provided with one respectively on the in-line of piston cylinder 1 and fuel-displaced pipeline.The oil inlet end of described proportional servo valve 2 is provided with Oil-pressure joint 7.
The four-corner leveling control system of hydraulic press of the present invention; IMU is crossed the control system the corresponding servo valve of four jiaos of four oil cylinders of sill is carried out dynamic closed-loop adjustment; Through high-precision pressure sensor, straight-line displacement chi, can be accurately the pressure of four jiaos of four liftout tanks and position be pounced on and catch, feed back then in the control system; After the computing, dynamically carry out the closed-loop adjustment servo valve.
Four-corner leveling control system through hydraulic press of the present invention; Press slide leveling precision in dynamic pressing process can reach ± 0.05mm; Solved because the Center of Pressure of product is asymmetric; The deformation drag everywhere of caused slide block is different, and a not parallel difficult problem that causes final product became uneven in the compacting slide block compacting that is caused has improved the serviceability of press greatly; Satisfy the technological requirement of some high-end customer higher levels, strong assurance is provided for suppressing high-quality car covering.
Claims (4)
1. the four-corner leveling of a hydraulic press is controlled system; It is characterized in that; Place, four angles at the sill of hydraulic press respectively is provided with one group of levelling gear, and the structure of the levelling gear at said four angles is identical, and described levelling gear includes the corresponding piston cylinder in angle (1) with sill; Be communicated with the also valve body (5) of control piston cylinder (1) oil mass with piston cylinder (1); Described valve body (5) comes oil (8) to be communicated with high-pressure pump, and links to each other with the control system, and a side of described piston cylinder (1) also is provided with the straight-line displacement chi (4) that links to each other with the control system.
2. the four-corner leveling of hydraulic press according to claim 1 is controlled system; It is characterized in that: described valve body (5) includes pressure sensor (3), superposing type overflow valve (6) and the proportional servo valve (2) that is successively set on the oil circuit of piston cylinder (1) fuel feeding and links to each other with the control system; Wherein, Described pressure sensor (3) and proportional servo valve (2) be connection control system respectively, and described proportional servo valve (2) connects high-pressure pump oil (8) through pipeline.
3. the four-corner leveling of hydraulic press according to claim 2 control system is characterized in that: described pressure sensor (3) and superposing type overflow valve (6) respectively are provided with one respectively on the in-line of piston cylinder (1) and fuel-displaced pipeline.
4. the four-corner leveling of hydraulic press according to claim 2 is controlled system, and it is characterized in that: the oil inlet end of described proportional servo valve (2) is provided with Oil-pressure joint (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101832552A CN102363345A (en) | 2011-06-30 | 2011-06-30 | Control system for leveling four corners of hydraulic press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101832552A CN102363345A (en) | 2011-06-30 | 2011-06-30 | Control system for leveling four corners of hydraulic press |
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| Publication Number | Publication Date |
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| CN102363345A true CN102363345A (en) | 2012-02-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011101832552A Pending CN102363345A (en) | 2011-06-30 | 2011-06-30 | Control system for leveling four corners of hydraulic press |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103660359A (en) * | 2013-11-19 | 2014-03-26 | 浙江大学 | Hydraulic control system and method for passive type four-corner-leveling hydraulic press |
| CN105351264A (en) * | 2015-11-25 | 2016-02-24 | 日照海卓液压有限公司 | Multi-oil-cylinder rigid passive synchronous hydraulic control system |
| CN108592773A (en) * | 2018-03-30 | 2018-09-28 | 天津市天锻压力机有限公司 | A kind of liquid-state die forging hydraulic press sliding block unbalance loading detection structure |
| CN109203556A (en) * | 2017-07-07 | 2019-01-15 | 博世力士乐（常州）有限公司 | The electro-hydraulic leveling system of the passive type of hydraulic press |
| CN109424328A (en) * | 2017-08-27 | 2019-03-05 | 上海城地建设股份有限公司 | A kind of automatic leveling erection device and its application method |
| CN114193810A (en) * | 2021-12-15 | 2022-03-18 | 合肥合锻智能制造股份有限公司 | Large split type thick plate end socket forming hydraulic machine with double-driving four-corner leveling function |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB663513A (en) * | 1947-03-21 | 1951-12-27 | Plessey Co Ltd | Improved hydraulic control system |
| CN201506029U (en) * | 2009-08-14 | 2010-06-16 | 天津市天锻压力机有限公司 | Dynamic levelling device applied on glass fiber reinforced plastic product hydraulic press |
| CN101985151A (en) * | 2010-08-02 | 2011-03-16 | 天津市天锻压力机有限公司 | Bidirectional couple four-corner levelling control system |
| CN101985246A (en) * | 2010-08-02 | 2011-03-16 | 天津市天锻压力机有限公司 | Hydropress with bidirectional couple levelling function |
| CN202357332U (en) * | 2011-06-30 | 2012-08-01 | 天津市天锻压力机有限公司 | Four-corner leveling controlling system of hydraulic press |
-
2011
- 2011-06-30 CN CN2011101832552A patent/CN102363345A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB663513A (en) * | 1947-03-21 | 1951-12-27 | Plessey Co Ltd | Improved hydraulic control system |
| CN201506029U (en) * | 2009-08-14 | 2010-06-16 | 天津市天锻压力机有限公司 | Dynamic levelling device applied on glass fiber reinforced plastic product hydraulic press |
| CN101985151A (en) * | 2010-08-02 | 2011-03-16 | 天津市天锻压力机有限公司 | Bidirectional couple four-corner levelling control system |
| CN101985246A (en) * | 2010-08-02 | 2011-03-16 | 天津市天锻压力机有限公司 | Hydropress with bidirectional couple levelling function |
| CN202357332U (en) * | 2011-06-30 | 2012-08-01 | 天津市天锻压力机有限公司 | Four-corner leveling controlling system of hydraulic press |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103660359A (en) * | 2013-11-19 | 2014-03-26 | 浙江大学 | Hydraulic control system and method for passive type four-corner-leveling hydraulic press |
| CN103660359B (en) * | 2013-11-19 | 2015-06-17 | 浙江大学 | Hydraulic control system and method for passive type four-corner-leveling hydraulic press |
| CN105351264A (en) * | 2015-11-25 | 2016-02-24 | 日照海卓液压有限公司 | Multi-oil-cylinder rigid passive synchronous hydraulic control system |
| CN109203556A (en) * | 2017-07-07 | 2019-01-15 | 博世力士乐（常州）有限公司 | The electro-hydraulic leveling system of the passive type of hydraulic press |
| CN109424328A (en) * | 2017-08-27 | 2019-03-05 | 上海城地建设股份有限公司 | A kind of automatic leveling erection device and its application method |
| CN108592773A (en) * | 2018-03-30 | 2018-09-28 | 天津市天锻压力机有限公司 | A kind of liquid-state die forging hydraulic press sliding block unbalance loading detection structure |
| CN114193810A (en) * | 2021-12-15 | 2022-03-18 | 合肥合锻智能制造股份有限公司 | Large split type thick plate end socket forming hydraulic machine with double-driving four-corner leveling function |
| CN114193810B (en) * | 2021-12-15 | 2023-12-29 | 合肥合锻智能制造股份有限公司 | Large split thick plate end socket forming hydraulic press with double-initiative four-corner leveling function |
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Application publication date: 20120229 |