CN203978968U - Plastic deformation squeezes the hydraulic system of forging molding equipment - Google Patents
Plastic deformation squeezes the hydraulic system of forging molding equipment Download PDFInfo
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- CN203978968U CN203978968U CN201420404959.7U CN201420404959U CN203978968U CN 203978968 U CN203978968 U CN 203978968U CN 201420404959 U CN201420404959 U CN 201420404959U CN 203978968 U CN203978968 U CN 203978968U
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Abstract
The utility model discloses the hydraulic system that a kind of plastic deformation squeezes forging molding equipment, comprise pressure oil-source, executive component, for controlling the Pilot operated check valve of executive component oil-feed and off-load and for controlling the solenoid directional control valve of Pilot operated check valve working state, the oil outlet of Pilot operated check valve is connected with the actuator port of executive component by connecting pipeline, the filler opening of Pilot operated check valve and control port are connected with pressure oil-source and fuel tank by solenoid directional control valve, other pilot operated compound relief valve and the explosive valve of being connected to of connecting pipeline, the pressure unloading of explosive valve is greater than the pressure unloading of pilot operated compound relief valve.The utlity model has the advantages such as simple in structure, control is convenient, safe, can avoid completely occurring building the pressure.
Description
Technical field
The utility model relates to plastic deformation and squeezes forging molding apparatus field, is specifically related to the hydraulic system that a kind of plastic deformation squeezes forging molding equipment.
Background technique
It is to utilize Principles of Metal Forming to carry out a kind of method of pressure processing that metal squeezes forging molding technology, to put into mould through pretreated metal blank, then on metal blank, exert pressure and make metal blank generation be out of shape and be full of mold cavity, thereby obtain needed part.It is a kind of few cutting or without the advanced technologies technology of cutting that metal squeezes forging molding technology, be beneficial to the quality that improves goods, improve goods interior microscopic tissue and performance, and also have and save that material, energy consumption are low, applied range, production flexibility is large, the simple and few feature of equipment investment of technological process.
At present, also there are a lot of application technology bottlenecks in crowded forging molding technology and crowded forging molding equipment both at home and abroad, and this technology can not be developed fully.
The crowded forging power required due to metal blank plastic deformation is very large, and hydraulic system need to guarantee the energy that provides enough, could meet to squeeze to forge requirement.For reaching, squeeze the requirement of forging power, the hydraulic system pressure squeezing in forging molding equipment can reach dozens or even hundreds of MPa, this will certainly increase the loss of hydraulic element and the requirement of performance thereof, to the Reliability of Microprocessor of hydraulic element, require also high, yet in existing crowded forging molding equipment, hydraulic element selectable range is few, especially for system decompression aspect, existing unloading valve is used in the generation that can't avoid the situation of building the pressure while squeezing forging molding equipment completely, once occur building the pressure, very likely cause the damage of hydraulic pressure components and parts, high pressure oil ejection also easily causes casualties, there are major safety risks.
Model utility content
The technical problems to be solved in the utility model is to overcome the deficiency that prior art exists, provide a kind of simple in structure, control convenient, safe, can to avoid occurring the crowded forging molding equipment of plastic deformation that builds the pressure completely hydraulic system.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
A kind of plastic deformation squeezes the hydraulic system of forging molding equipment, comprise pressure oil-source, executive component, for controlling the Pilot operated check valve of described executive component oil-feed and off-load and for controlling the solenoid directional control valve of described Pilot operated check valve working state, the oil outlet of described Pilot operated check valve is connected with the actuator port of described executive component by connecting pipeline, the filler opening of described Pilot operated check valve and control port are connected with described pressure oil-source and fuel tank by described solenoid directional control valve, other pilot operated compound relief valve and the explosive valve of being connected to of described connecting pipeline, the pressure unloading of described explosive valve is greater than the pressure unloading of described pilot operated compound relief valve.
As further improvement of the utility model:
Described explosive valve comprises withstand voltage of metal and the discharge route being communicated with described connecting pipeline, and described metal is withstand voltage slice to be fixed at described discharge route and described discharge route is remained open.
Described discharge route comprises the installation straight tube of an end opening, the other end sealing, the opening end of described installation straight tube is communicated with described connecting pipeline, interval is equiped with withstand voltage of two described metals in described installation straight tube, and the installation straight tube between withstand voltage of two metals is provided with the exhaust port being communicated with fuel tank.
Described pressure oil-source is oil pump.
Described executive component is plunger case.
Described solenoid directional control valve is three position four-way electromagnetic valve, described three position four-way electromagnetic valve has the first actuator port, the second actuator port, filler opening and unloading port, described the first actuator port is connected with the filler opening of Pilot operated check valve, described the second actuator port is connected with the control port of Pilot operated check valve, described filler opening is connected with described pressure oil-source, and described unloading port is connected with described fuel tank; Described three position four-way electromagnetic valve has three working staties, the first working state is all communicated with the filler opening of described Pilot operated check valve and control port with described fuel tank, the second working state makes that the filler opening of described Pilot operated check valve is communicated with pressure oil-source, the control port of described Pilot operated check valve is communicated with fuel tank, and the 3rd working state makes that the control port of described Pilot operated check valve is communicated with pressure oil-source, the filler opening of described Pilot operated check valve is communicated with fuel tank.
The other pressure gauge with electric contact that is connected on described connecting pipeline.
Described Pilot operated check valve, pilot operated compound relief valve and explosive valve are arranged on same valve piece.
Guide's spool of described pilot operated compound relief valve and overflow spool are divided in the different valve pockets of described valve piece.
Compared with prior art, the utility model has the advantage of: the utility model plastic deformation squeezes the hydraulic system of forging molding equipment, by solenoid directional control valve, pressure oil-source is passed into and controls Pilot operated check valve filler opening or control port, can realize oil-feed and the off-load of executive component, on connecting pipeline, side is connected to pilot operated compound relief valve and explosive valve simultaneously, when there is job failure in Pilot operated check valve or solenoid directional control valve, can carry out off-load by pilot operated compound relief valve, explosive valve when pilot operated compound relief valve also cannot be worked explosion carry out off-load, formed the multiple protective to the whole work loop of executive component, adopt pilot operated compound relief valve simple in structure, that the special low explosive valve of cost carrys out protective price costliness, greatly reduce cost and manufacture difficulty, explosive valve there will not be fault, the Security of safeguards system work completely simultaneously.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that the utility model plastic deformation squeezes the hydraulic system of forging molding equipment.
Fig. 2 is that the utility model plastic deformation squeezes Pilot operated check valve, pilot operated compound relief valve and explosive valve in the hydraulic system of forging molding equipment and is located at the sectional structure schematic diagram on same valve piece.
Fig. 3 is the mounting structure schematic diagram that the utility model plastic deformation squeezes the hydraulic system borehole blasting valve of forging molding equipment.
Marginal data:
1, pressure oil-source; 2, executive component; 3, Pilot operated check valve; 4, solenoid directional control valve; 5, connecting pipeline; 6, fuel tank; 7, pilot operated compound relief valve; 71, guide's spool; 72, overflow spool; 8, explosive valve; 81, metal is withstand voltage; 82, straight tube is installed; 9, pressure gauge with electric contact; 10, valve piece.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, the utility model plastic deformation squeezes the hydraulic system of forging molding equipment, comprise pressure oil-source 1, executive component 2, Pilot operated check valve 3 and solenoid directional control valve 4, pressure oil-source 1 is oil pump, executive component 2 is plunger case, Pilot operated check valve 3 is for controlling executive component 2 oil-feeds and off-load, and solenoid directional control valve 4 is for controlling Pilot operated check valve 3 working staties.Wherein, the oil outlet of Pilot operated check valve 3 is connected with the actuator port of executive component 2 by connecting pipeline 5, and the filler opening of Pilot operated check valve 3 and control port are connected with pressure oil-source 1 and fuel tank 6 by solenoid directional control valve 4.Connecting pipeline 5 is other is connected to pilot operated compound relief valve 7 and explosive valve 8, and the pressure unloading of explosive valve 8 is greater than the pressure unloading of pilot operated compound relief valve 7.Pilot operated check valve 3, pilot operated compound relief valve 7 and explosive valve 8 are arranged on same valve piece 10 (referring to Fig. 2), can improve the compactedness of structure, have also reduced and have manufactured cost, can also be applicable to the hydraulic system of ultrahigh pressure.Meanwhile, guide's spool 71 of the spool of Pilot operated check valve 3, pilot operated compound relief valve 7 and the overflow spool 72 of pilot operated compound relief valve 7 are located at respectively in valve pockets different on valve piece 10, are conducive to control, and can adapt to the hyperbaric environment of squeezing forging molding equipment.
Above-mentioned explosive valve 8 comprises withstand voltage 81, metal and the discharge route being communicated with connecting pipeline 5.As shown in Figure 3, metal is withstand voltage slices 81 is provided with two, discharge route comprises installs straight tube 82, one end opening of straight tube 82 is installed, the other end sealing, wherein withstand voltage 81 of piece of metal is installed in the middle part that straight tube 82 is installed, and another withstand voltage 81 of piece of metal is pressed abd fixed on the opening end and valve piece 10 and the opening that connecting pipeline 5 is communicated with that straight tube 82 is installed, and makes to install straight tube 82 and remains open with connecting pipeline 5.Withstand voltage 81, two metals will be installed straight tube 82 and be separated into the tube chamber of two sections of sealings, on installation straight tube 82 tube walls between withstand voltage 81, two metals, offer the exhaust port being communicated with fuel tank 6.Metal is withstand voltage slices 81 can adopt cast iron to make, select suitable thickness can make withstand voltage 81, the metal of corresponding compressive strength (oil pressure that also can bear), when the pressure in connecting pipeline 5 surpasses the compressive strength of withstand voltage 81, metal, can break through withstand voltage 81, the metal that straight tube 82 opening ends are installed, thereby make high pressure oil flow back into fuel tank 6 by straight tube 82 is installed.When pressure is excessive, can break through withstand voltage 81, the metal at these installation straight tube 82 middle parts, this installs withstand voltage 81 buffer functions of metal at straight tube 82 middle parts.
The utility model plastic deformation squeezes the hydraulic system of forging molding equipment, by solenoid directional control valve 4, pressure oil-source 1 is passed into and controls Pilot operated check valve 3 filler openings or control port, can realize oil-feed and the off-load of executive component 2, on connecting pipeline 5, side is connected to pilot operated compound relief valve 7 and explosive valve 8 simultaneously, when there is job failure in Pilot operated check valve 3 or solenoid directional control valve 4, can carry out off-load by pilot operated compound relief valve 7, explosive valve 8 when pilot operated compound relief valve 7 also cannot be worked explosion carry out off-load, formed the multiple protective to the whole work loop of executive component 2; Adopt pilot operated compound relief valve 7 simple in structure, that the special low explosive valve 8 of cost carrys out protective price costliness, greatly reduce cost and manufacture difficulty, explosive valve 8 there will not be fault, the Security of safeguards system work completely simultaneously.
In the present embodiment, solenoid directional control valve 4 is three position four-way electromagnetic valve, it has the first actuator port, the second actuator port, filler opening and unloading port, wherein, the first actuator port is connected with the filler opening of Pilot operated check valve 3, the second actuator port is connected with the control port of Pilot operated check valve 3, and filler opening is connected with pressure oil-source 1, and unloading port is connected with fuel tank 6; This three position four-way electromagnetic valve is by two magnet control, there are three working staties, the first working state is all communicated with the filler opening of Pilot operated check valve 3 and control port with fuel tank 6, the second working state makes that the filler opening of Pilot operated check valve 3 is communicated with pressure oil-source 1, the control port of Pilot operated check valve 3 is communicated with fuel tank 6, and the 3rd working state makes that the control port of Pilot operated check valve 3 is communicated with pressure oil-source 1, the filler opening of Pilot operated check valve 3 is communicated with fuel tank 6.
In the present embodiment, the other pressure gauge with electric contact 9 that is connected on connecting pipeline 5, pressure (being also the operating oil pressure of executive component 2) for detection of connecting pipeline 5, the setting pressure of pressure gauge with electric contact 9 is less than the pressure unloading of pilot operated compound relief valve 7, when the pressure of connecting pipeline 5 surpasses the pressure of setting, can feed back to control gear, and control solenoid directional control valve 4 actions by control gear, control 3 pairs of executive components of Pilot operated check valve 2 and carry out off-load.
The working principle of the hydraulic system of the crowded forging molding equipment of the utility model plastic deformation is as follows:
When needs are given executive component 2 fuel feeding, the respective electrical magnet of solenoid directional control valve 4 obtains electric, make solenoid directional control valve 4 in the second working state, the filler opening of Pilot operated check valve 3 is communicated with pressure oil-source 1, and the control port of Pilot operated check valve 3 is communicated with fuel tank 6, the pressure oil of pressure oil-source 1 promotes the spool of Pilot operated check valve 3 and opens, and pressure oil is supplied with executive component 2 by connecting pipeline 5; When needs executive component 2 keeps building the pressure state, two electromagnet of solenoid directional control valve 4 all must not when electricity, solenoid directional control valve 4 is in the first working state, the filler opening of Pilot operated check valve 3 and control port are all communicated with fuel tank 6, the spool of Pilot operated check valve 3 is closed, and makes the hydraulic oil in executive component 2 and connecting pipeline 5 keep sealing; When executive component 2 working pressures surpass setting value, by detection and the feedback of pressure gauge with electric contact 9, the respective electrical magnet that can control solenoid directional control valve 4 obtains electric, make solenoid directional control valve 4 in the 3rd working state, the control port of Pilot operated check valve 3 is communicated with pressure oil-source 1, the filler opening of Pilot operated check valve 3 is communicated with fuel tank 6, the control port that makes the pressure oil of pressure oil-source 1 enter Pilot operated check valve 3 drives as controlling oil the spool of opening Pilot operated check valve 3, and the pressure oil in executive component 2 is discharged in fuel tank 6.
Above-mentioned is normal working state, when Pilot operated check valve 3, pressure gauge with electric contact 9, solenoid directional control valve 4 and related electric circuit etc. break down, and while causing carrying out off-load by Pilot operated check valve 3, system pressure further raises, after reaching the pressure of pilot operated compound relief valve 7 settings, by pilot operated compound relief valve 7, carry out off-load; When pilot operated compound relief valve 7 also breaks down, system pressure continues to raise, and after withstand voltage 81 pressure can bear of the metal that reaches explosive valve 8, breaks through metal withstand voltage 81, by straight tube 82 is installed, is discharged in fuel tank 6.
The above is only preferred implementation of the present utility model, and protection domain of the present utility model is also not only confined to above-described embodiment.For those skilled in the art, do not departing under the utility model technical conceive prerequisite resulting improvement and conversion also should be considered as protection domain of the present utility model.
Claims (9)
1. a plastic deformation squeezes the hydraulic system of forging molding equipment, it is characterized in that: comprise pressure oil-source (1), executive component (2), be used for controlling the Pilot operated check valve (3) of (2) oil-feed of described executive component and off-load and for controlling the solenoid directional control valve (4) of described Pilot operated check valve (3) working state, the oil outlet of described Pilot operated check valve (3) is connected with the actuator port of described executive component (2) by connecting pipeline (5), the filler opening of described Pilot operated check valve (3) and control port are connected with described pressure oil-source (1) and fuel tank (6) by described solenoid directional control valve (4), other pilot operated compound relief valve (7) and the explosive valve (8) of being connected to of described connecting pipeline (5), the pressure unloading of described explosive valve (8) is greater than the pressure unloading of described pilot operated compound relief valve (7).
2. plastic deformation according to claim 1 squeezes the hydraulic system of forging molding equipment, it is characterized in that: described explosive valve (8) comprises metal withstand voltage (81) and the discharge route being communicated with described connecting pipeline (5), and described metal is withstand voltage slice (81) is fixed at described discharge route and described discharge route is remained open.
3. plastic deformation according to claim 2 squeezes the hydraulic system of forging molding equipment, it is characterized in that: described discharge route comprises the installation straight tube (82) of an end opening, the other end sealing, the opening end of described installation straight tube (82) is communicated with described connecting pipeline (5), the interior interval of described installation straight tube (82) is equiped with withstand voltage of two described metals (81), and the installation straight tube (82) between two metals withstand voltage (81) is provided with the exhaust port being communicated with fuel tank (6).
4. plastic deformation according to claim 1 squeezes the hydraulic system of forging molding equipment, it is characterized in that: described pressure oil-source (1) is oil pump.
5. plastic deformation according to claim 1 squeezes the hydraulic system of forging molding equipment, it is characterized in that: described executive component (2) is plunger case.
6. according to the plastic deformation described in any one in claim 1 to 5, squeeze the hydraulic system of forging molding equipment, it is characterized in that: described solenoid directional control valve (4) is three position four-way electromagnetic valve, described three position four-way electromagnetic valve has the first actuator port, the second actuator port, filler opening and unloading port, described the first actuator port is connected with the filler opening of Pilot operated check valve (3), described the second actuator port is connected with the control port of Pilot operated check valve (3), described filler opening is connected with described pressure oil-source (1), and described unloading port is connected with described fuel tank (6); Described three position four-way electromagnetic valve has three working staties, the first working state is all communicated with the filler opening of described Pilot operated check valve (3) and control port with described fuel tank (6), the second working state makes that the filler opening of described Pilot operated check valve (3) is communicated with pressure oil-source (1), the control port of described Pilot operated check valve (3) is communicated with fuel tank (6), and the 3rd working state makes that the control port of described Pilot operated check valve (3) is communicated with pressure oil-source (1), the filler opening of described Pilot operated check valve (3) is communicated with fuel tank (6).
7. according to the plastic deformation described in any one in claim 1 to 5, squeeze the hydraulic system of forging molding equipment, it is characterized in that: the upper other pressure gauge with electric contact (9) that is connected to of described connecting pipeline (5).
8. according to the plastic deformation described in any one in claim 1 to 5, squeeze the hydraulic system of forging molding equipment, it is characterized in that: described Pilot operated check valve (3), pilot operated compound relief valve (7) and explosive valve (8) are arranged on same valve piece (10).
9. plastic deformation according to claim 8 squeezes the hydraulic system of forging molding equipment, it is characterized in that: guide's spool (71) and the overflow spool (72) of described pilot operated compound relief valve (7) are divided in the different valve pockets of described valve piece (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420404959.7U CN203978968U (en) | 2014-07-22 | 2014-07-22 | Plastic deformation squeezes the hydraulic system of forging molding equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420404959.7U CN203978968U (en) | 2014-07-22 | 2014-07-22 | Plastic deformation squeezes the hydraulic system of forging molding equipment |
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| CN203978968U true CN203978968U (en) | 2014-12-03 |
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| CN201420404959.7U Active CN203978968U (en) | 2014-07-22 | 2014-07-22 | Plastic deformation squeezes the hydraulic system of forging molding equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106739124A (en) * | 2016-12-09 | 2017-05-31 | 西安麦特沃金液控技术有限公司 | Crystallite copper ball Full-automatic hydraulic forming machine |
| CN108730255A (en) * | 2018-07-31 | 2018-11-02 | 上海立新液压有限公司 | A kind of luffing balanced valve |
-
2014
- 2014-07-22 CN CN201420404959.7U patent/CN203978968U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106739124A (en) * | 2016-12-09 | 2017-05-31 | 西安麦特沃金液控技术有限公司 | Crystallite copper ball Full-automatic hydraulic forming machine |
| CN106739124B (en) * | 2016-12-09 | 2019-02-15 | 西安麦特沃金液控技术有限公司 | Crystallite copper ball Full-automatic hydraulic forming machine |
| CN108730255A (en) * | 2018-07-31 | 2018-11-02 | 上海立新液压有限公司 | A kind of luffing balanced valve |
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