CN106151128A - Digital display type high-low pump riveting machine Hydraulic Station and riveting process - Google Patents
Digital display type high-low pump riveting machine Hydraulic Station and riveting process Download PDFInfo
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- CN106151128A CN106151128A CN201610698949.2A CN201610698949A CN106151128A CN 106151128 A CN106151128 A CN 106151128A CN 201610698949 A CN201610698949 A CN 201610698949A CN 106151128 A CN106151128 A CN 106151128A
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- Prior art keywords
- pressure
- riveting
- oil
- pump
- low pressure
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/10—Riveting machines
- B21J15/16—Drives for riveting machines; Transmission means therefor
- B21J15/20—Drives for riveting machines; Transmission means therefor operated by hydraulic or liquid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/20507—Type of prime mover
- F15B2211/20515—Electric motor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/20576—Systems with pumps with multiple pumps
- F15B2211/20592—Combinations of pumps for supplying high and low pressure
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Portable Nailing Machines And Staplers (AREA)
Abstract
The invention discloses digital display type high-low pump riveting machine Hydraulic Station and riveting process, belong to field of machining, including fuel tank, low pressure fuel pump group loop, high-pressure oil pump group loop and chiller and electrical control gear, low pressure fuel pump group loop includes motor one, low pressure fuel pump and low pressure spill valve module, the low pressure oil way of low pressure fuel pump outfan divides two-way: a road is connected to oil sump tank through low pressure spill valve module, another road is through check valve one, electro-hydraulic reversing valve connects riveting pincers oil cylinder, high-pressure oil pump group loop includes motor two, high-pressure oil pump and high pressure kicks valve module；The high-pressure oil passage of high-pressure oil pump outfan divides two-way: a road is connected to oil sump tank through check valve two, high pressure kicks valve module, and another road is connected riveting pincers oil cylinder through electro-hydraulic reversing valve after check valve two collects with low pressure oil way.The present invention reaches to rivet the purpose of rivet by the combination of skilful second of a low pressure fuel pump and high-pressure oil pump, structure simplerization, first evolves, and riveting speed is fast, and heating is few, and noise is low.
Description
Technical field
The invention belongs to field of machining, be specifically related to a kind of digital display type high-low pump riveting machine Hydraulic Station and riveting work
Skill.
Background technology
The riveting machine of domestic production at present is divided by power source region two kinds, i.e. hydraulic riveter and jam riveter.Pneumatic
Riveting machine is only used for, because of the limitation that Pneumatic pressure is relatively low, the occasion that riveting pressure is less, and hydraulic riveter is then pressed due to it
Power scope is relatively wide and is widely used in all trades and professions.The most most widely used riveting machine is a kind of booster-type riveting machine,
Its Hydraulic Station is made up of dosing pump+inserted valve+pressurized cylinder.So-called booster-type riveting machine, its topmost feature is can be by fixed
The lower pressure of amount pump output is pressurized to rivet the high-pressure needed for rivet by pressurized cylinder.Its hydraulic valve uses two-way plug-in mounting
Valve, oil path block uses integral form, and pressurized cylinder and oil path block is manufactured into one, makes control valve and pressurized cylinder and oil path block
Organically it is combined into an entirety.Therefore, this traditional booster-type riveting machine, speed is steady, caloric value is little, knot to have riveting
The advantages such as structure is compact.But it is complicated also to have structure simultaneously, processing and manufacturing difficulty is big, and trouble point is many, not easy-maintaining and riveting speed
The shortcoming such as restricted.
Summary of the invention
It is an object of the invention to for booster-type riveting machine structure traditional in prior art complicated, processing and manufacturing difficulty
Greatly, the technical problems such as trouble point is many, it is provided that a kind of digital display type high-low pump riveting machine Hydraulic Station and riveting process, it is achieved riveting machine
First evolution, simplification, rapid, be applied to the most various production line with riveted structure, it is possible to achieve the quickest
Rivet the purpose of various rivet.
In order to solve above-mentioned technical problem, the technical solution used in the present invention is: a kind of digital display type high-low pump riveting machine
Hydraulic Station, including fuel tank, low pressure fuel pump group loop, high-pressure oil pump group loop and chiller and electrical control gear, described
Low pressure fuel pump group loop includes motor one, low pressure fuel pump and low pressure spill valve module, the low pressure of described low pressure fuel pump outfan
Oil circuit divides two-way: a road is connected to oil sump tank through low pressure spill valve module, and another road connects riveting through check valve one, electro-hydraulic reversing valve
Pincers oil cylinder, described high-pressure oil pump group loop includes motor two, high-pressure oil pump and high pressure kicks valve module；Described high-pressure oil pump is defeated
The high-pressure oil passage going out end divides two-way: a road is connected to oil sump tank through check valve two, high pressure kicks valve module, and another road is through check valve
Two collect with low pressure oil way after through electro-hydraulic reversing valve be connected riveting pincers oil cylinder；At described low-lift pump oil feed line and high pressure fuel supply pump
It is separately installed with Pressure gauge on pipeline, and at riveting pincers oil cylinder oil feed line, pressure transducer is installed.
Based on technique scheme, described motor one and motor two are respectively adopted vertical being arranged on fuel tank, high-pressure oil pump
And low pressure fuel pump is separately mounted in fuel tank hydraulic oil;High and low pressure spill valve, check valve and electro-hydraulic reversing valve are placed
Forming hydraulic valve bank, described hydraulic valve bank is arranged on tank envelope, and electrical control gear and chiller are arranged on together
Tank envelope side.
Based on technique scheme, described low pressure spill valve module and high pressure kicks valve module are respectively electromagnetic relief valve,
Low pressure spill valve module is provided with electric magnet YV1, high pressure kicks valve module is provided with electric magnet YV2.
Based on technique scheme, described electro-hydraulic reversing valve is solenoid directional control valve, is provided with electric magnet in electro-hydraulic reversing valve
YV3 and electric magnet YV4.
Based on technique scheme, oil sump tank return line is also equipped with return filter.
Based on technique scheme, described high-pressure oil pump is small flow high pressure pump, and low pressure fuel pump is big flow low-pressure pumps.
Based on technique scheme, described electrical control gear is digital display electrical control gear, also includes touch LCD screen,
Electric parameter is controlled by the operation of touch LCD screen.
A kind of riveting machine riveting process based on digital display type high-low pump riveting machine Hydraulic Station, this technique is by following steps group
Become:
1) oil pump drain charge: after starting motor one, motor two, the hydraulic oil that low pressure fuel pump is got is through low pressure spill valve module drain charge
Oil sump tank, the hydraulic oil that high-pressure oil pump is got through high pressure kicks valve module drain charge oil sump tank, remaining equal attonity of each valve；
2) riveting pincers become into: the electric magnet YV1 in low pressure spill valve module, the electric magnet YV2 in high pressure kicks valve module and
Electric magnet YV3 in electro-hydraulic reversing valve obtains electric, and the left position of electro-hydraulic reversing valve is connected, the hydraulic oil that high-pressure oil pump and low pressure fuel pump are got
Collaborating to enter riveting pincers oil cylinder rodless cavity together through the left position of electro-hydraulic reversing valve promotes piston to make riveting pincers fast forward through；
3) riveting pincers boosting: when, after riveting mould contact rivet, pressure starts to raise, and now pressure transducer sends signal and makes low pressure spill
Electric magnet YV1 dead electricity in valve module, low pressure fuel pump drain charge；The hydraulic oil that high-pressure oil pump is got goes successively to riveting pincers oil cylinder, riveting
Pincers oil in-cylinder pressure continues to raise, and completes riveting action；
4) riveting pincers return with hydraulic system drain charge: after rivet riveting becomes, and riveting clamps in-oil cylinder pressure and reaches setting of pressure transducer
Constant-pressure, pressure transducer sends signal, cuts off electro-hydraulic reversing valve 13 left end electric magnet YV3, makes electro-hydraulic reversing valve right-hand member electromagnetism
Ferrum YV4 obtains electric, and electro-hydraulic reversing valve is switched to the work of right position；Meanwhile, the YV1 in low pressure spill valve module obtains electric, and low pressure fuel pump is tied
Bundle drain charge, clamps oil cylinder fuel feeding, high-pressure oil pump and low pressure fuel pump oil circuit interflow to riveting and arrives riveting pincers cylinder rod chamber, and riveting pincers oil cylinder is fast
Speed is return；
5) after riveting pincers oil cylinder is return and is put in place, electric magnet YV1, YV2, YV4 power-off, in electro-hydraulic reversing valve, electro-hydraulic commutation is in middle position,
High and low pressure oil pump drain charge, completes one action circulation.
Beneficial effect: the present invention has the effect that 1. hydraulic principles are simple, and hydraulic station structure is simple, riveting speed is fast,
Easy to maintenance, touch screen pressure on the number shows, intuitive display, operates easier etc..
2. riveting speed is fast: owing to using low-lift pump and the common fuel feeding of high-pressure pump, at riveting pincers oil cylinder convergence rivet and rollback
During realize Dual-pump flow-converging, the speed of service is quickly；After contact rivet, the automatic drain charge of low-lift pump, independent by small flow high pressure pump
Completing riveting, riveting process is steady, and riveting molding is good.Than traditional booster-type riveting, the machine work efficiency is high, rivets speed
Hurry up, and noise is low, heating is few.
4. principle is simple, and in addition to two groups of Oil pump electrical machineries, main hydraulic valve only has two overflow valves and an electro-hydraulic commutation
Valve, does not has traditional compression portion, schematic diagram seems more short and sweet.
5. without traditional pressurized cylinder, and Hydraulic Elements are few, and valve block is simple, it is easy to make.Thus overall structure becomes
Simplify.
6, use advanced touch screen technology, pressure is carried out numerical monitor and regulation.
To sum up, the present invention was combined by the skilful second of a low pressure fuel pump and high-pressure oil pump, to realize in hydraulic system
Oil liquid pressure is by the conversion of low pressure to high pressure, thus reaches to rivet the purpose of rivet.Owing to the conversion from low pressure to high pressure is low
Switching between pressure oil pump and high-pressure oil pump, thus speed is quickly.Than existing booster-type riveting machine, this invention is greatly simplified
The structure of Hydraulic Station, not only reduces pressurized cylinder, decreases Hydraulic Elements associated therewith, and improves riveting speed
Degree.By contrast, present configuration simplerization, first evolving, and riveting speed is fast, heating is few, and noise is low.
Accompanying drawing explanation
Fig. 1 is one of digital display type high-low pump riveting machine Hydraulic Station assembling structural representation；
Fig. 2 is the two of digital display type high-low pump riveting machine Hydraulic Station assembling structural representation；
Fig. 3 is the three of digital display type high-low pump riveting machine Hydraulic Station assembling structural representation；
Fig. 4 is hydraulic principle structural representation of the present invention.
Label in figure: 1-fuel tank, 2-low pressure fuel pump group of motors, 2-1-motor one, 2-2-low pressure fuel pump, 3-high-pressure oil pump
Group of motors, 3-1-motor two, 3-2-high-pressure oil pump, 4-hydraulic valve bank, 5-check valve one；6-check valve two, 7-Pressure gauge is opened
Close, 8-Pressure gauge two, 9-pressure valve plug-in unit, 10-low pressure relief valve；11-electromagnetic valve, 12-high-voltage electromagnetic overflow valve, 13-
Electro-hydraulic reversing valve, 14-pressure transducer, 15-oil filter；16-pressure measuring tie-in, 17-Pressure gauge one, 18-chiller, 19-
Return filter, 20-riveting pincers oil cylinder, 21 is electrical control gear.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention will be further described, in order to is more fully understood that the technology of the present invention side
Case.
Embodiment 1: a kind of digital display type high-low pump riveting machine Hydraulic Station, sees Fig. 1 and Fig. 2, including fuel tank 1, low pressure oil
Pump group loop, high-pressure oil pump group loop and chiller 18 and electrical control gear, electrical control gear is digital display electric-controlled
Device processed, also includes touch LCD screen, uses advanced touch screen technology, pressure is carried out numerical monitor and regulation, no longer uses
Pressure is observed and controls by traditional Pressure gauge and pressure switch, uses touch LCD screen and pressure transducer to pressure
It is acquired, shows and regulates, can be from touch LCD screen display riveting pressure, riveting number of times, it is also possible to pass through touch screen
Set multiple riveting pressure.
Described low pressure fuel pump group loop includes low pressure fuel pump group of motors 2(motor one 2-1, low pressure fuel pump 2-2) and low pressure
Spill valve, low pressure fuel pump 2-2 is big flow low-pressure pumps, and low pressure spill valve module is illustrated in figure 2 electromagnetic relief valve, including
Pressure valve plug-in unit 9, low pressure relief valve 10 and electromagnetic valve 11, be provided with electric magnet YV1, described low pressure in low pressure spill valve module
The low pressure oil way of oil pump outfan divides two-way: a road through low pressure spill valve module (pressure valve plug-in unit 9, low pressure relief valve 10 and
Electromagnetic valve 11) it is connected to oil sump tank, another road connects riveting pincers oil cylinder 20, described height through check valve 1, the left position of electro-hydraulic reversing valve 13
Pressure oil pump group loop includes high-pressure oil pump group of motors 3(motor two 3-1, high-pressure oil pump 3-2) and high-voltage electromagnetic overflow valve 12, high
Pressure oil pump is small flow high pressure pump, is provided with electric magnet YV2 in high-voltage electromagnetic overflow valve 12；The hydraulic oil of high-pressure oil pump outfan
Two-way is divided on road: a road is connected to oil sump tank through check valve 26, high-voltage electromagnetic overflow valve 12, and another road is through check valve 26 and low pressure
Oil circuit connects riveting pincers oil cylinder 20 through the left position of electro-hydraulic reversing valve 13 after collecting；Electro-hydraulic reversing valve 13 is solenoid directional control valve, electro-hydraulic commutation
Electric magnet YV3 and electric magnet YV4 it is provided with in valve.Low-lift pump oil feed line is provided with pressure measuring tie-in 16 and Pressure gauge one
17, high pressure fuel supply pump pipeline is provided with pressure meter switch 7 and Pressure gauge 28, and is provided with at riveting pincers oil cylinder oil feed line
Pressure transducer 14, oil sump tank return line is also equipped with return filter 19.
In the present embodiment: Oil pump electrical machinery is power source, motor one 2-1 and motor two 3-1 is respectively adopted and vertical is arranged on oil
On case, high-pressure oil pump and low pressure fuel pump are separately mounted in fuel tank hydraulic oil;High and low pressure spill valve, check valve and electricity
Liquid reversal valve puts together formation hydraulic valve bank, and described hydraulic valve bank is arranged on tank envelope, electrical control gear and cold
Radiator cooler is arranged on tank envelope side.Hydraulic valve bank is made up of the high-accuracy oil pressure integrated package of hydraulic valve and.This is high-precision
Close oil pressure integrated package surface and surrounding are mounted with almost all of hydraulic valve and auxiliary element in system.Thus, the present embodiment removes
Outside two groups of Oil pump electrical machineries, main hydraulic valve only has two overflow valves and an electro-hydraulic reversing valve, do not have traditional compression portion,
Eliminating traditional pressurized cylinder, Hydraulic Elements are few, and valve block is simple, it is easy to making, whole hydraulic means seems simple, compact, peace
Filling easy to maintenance, and the speed of service is fast, noise is low, generates heat little.
The riveting process using the present embodiment digital display type high-low pump riveting machine Hydraulic Station is as follows: 1) oil pump drain charge: start
After motor one, motor two, the hydraulic oil that low pressure fuel pump is got is through low pressure spill valve module drain charge oil sump tank, and high-pressure oil pump is got
Hydraulic oil through high pressure kicks valve module drain charge oil sump tank, remaining equal attonity of each valve；
2) riveting pincers become into the electric magnet YV1 in low pressure spill valve module, the YV2 in high pressure kicks valve module and electro-hydraulic change
YV3 in valve obtains electric, and the left position of electro-hydraulic reversing valve is connected, and oil sump tank low tension loop and high tension loop are each turned off, high-pressure oil pump
And the hydraulic oil got of low pressure fuel pump collaborates to enter riveting pincers oil cylinder rodless cavity together through the left position of electro-hydraulic reversing valve and promotes piston to make riveting
Pincers fast forward through；
3) riveting pincers boosting: when, after riveting mould contact rivet, pressure starts to raise, and now pressure transducer sends signal and makes low pressure spill
Electric magnet YV1 dead electricity in valve module, low pressure fuel pump drain charge；The hydraulic oil that high-pressure oil pump is got goes successively to riveting pincers oil cylinder, riveting
Pincers oil in-cylinder pressure continues to raise, and completes riveting action；
4) riveting pincers return with hydraulic system drain charge: after rivet riveting becomes, and riveting clamps in-oil cylinder pressure and reaches setting of pressure transducer
Constant-pressure, pressure transducer sends signal, cuts off electro-hydraulic reversing valve 13 left end electric magnet YV3, makes electro-hydraulic reversing valve right-hand member electromagnetism
Ferrum YV4 obtains electric, and electro-hydraulic reversing valve is switched to the work of right position；Meanwhile, the YV1 in low pressure spill valve module obtains electric, and low pressure fuel pump is tied
Bundle drain charge, clamps oil cylinder fuel feeding, high-pressure oil pump and low pressure fuel pump oil circuit interflow to riveting and arrives riveting pincers cylinder rod chamber, and riveting pincers oil cylinder is fast
Speed is return；
5) after riveting pincers oil cylinder is return and is put in place, electric magnet YV1, YV2, YV4 power-off, in electro-hydraulic reversing valve, electro-hydraulic commutation is in middle position,
High and low pressure oil pump drain charge, completes one action circulation.
Owing to using low-lift pump and the common fuel feeding of high-pressure pump in the present embodiment technique, at riveting pincers oil cylinder convergence rivet and rollback
During realize Dual-pump flow-converging, the speed of service is quickly；After contact rivet, the automatic drain charge of low-lift pump, independent by small flow high pressure pump
Completing riveting, riveting process is steady, and riveting molding is good.Than traditional booster-type riveting, the machine work efficiency is high, rivets speed
Hurry up, and noise is low, heating is few, and riveting speed is fast.
Claims (8)
1. a digital display type high-low pump riveting machine Hydraulic Station, including fuel tank, low pressure fuel pump group loop, high-pressure oil pump group loop with
And chiller and electrical control gear, it is characterized in that: described low pressure fuel pump group loop includes motor one, low pressure fuel pump and low
Pressurized overflow valve module, the low pressure oil way of described low pressure fuel pump outfan divides two-way: a road is connected to back through low pressure spill valve module
Fuel tank, another road connects riveting pincers oil cylinder through check valve one, electro-hydraulic reversing valve, and described high-pressure oil pump group loop includes motor two, height
Pressure oil pump and high pressure kicks valve module；The high-pressure oil passage of described high-pressure oil pump outfan divides two-way: a road is through check valve two, height
Pressurized overflow valve module is connected to oil sump tank, and another road is connected riveting pincers through electro-hydraulic reversing valve after check valve two collects with low pressure oil way
Oil cylinder；It is separately installed with Pressure gauge on described low-lift pump oil feed line and high pressure fuel supply pump pipeline, and clamps oil cylinder in riveting
Oil feed line is provided with pressure transducer.
Digital display type high-low pump riveting machine Hydraulic Station the most according to claim 1, is characterized in that: described motor one and motor
Two are respectively adopted vertical being arranged on fuel tank, and high-pressure oil pump and low pressure fuel pump are separately mounted in fuel tank hydraulic oil;High and low pressure
Spill valve, check valve and electro-hydraulic reversing valve put together formation hydraulic valve bank, and described hydraulic valve bank is arranged on fuel tank
On shell, described electrical control gear and chiller are arranged on tank envelope side.
Digital display type high-low pump riveting machine Hydraulic Station the most according to claim 1, is characterized in that: described low pressure relief valve group
Part and high pressure kicks valve module are respectively electromagnetic relief valve, are provided with electric magnet YV1, high-pressure overflow valve in low pressure spill valve module
Assembly is provided with electric magnet YV2.
Digital display type high-low pump riveting machine Hydraulic Station the most according to claim 3, is characterized in that: described electro-hydraulic reversing valve is
Solenoid directional control valve, is provided with electric magnet YV3 and electric magnet YV4 in electro-hydraulic reversing valve.
Digital display type high-low pump riveting machine Hydraulic Station the most according to claim 1, is characterized in that: at the oil return pipe of oil sump tank
Return filter it is also equipped with on road.
Digital display type high-low pump riveting machine Hydraulic Station the most according to claim 1, is characterized in that: described high-pressure oil pump is little
Flow high-pressure pump, low pressure fuel pump is big flow low-pressure pumps.
Digital display type high-low pump riveting machine Hydraulic Station the most according to claim 1, is characterized in that: described electrical control gear
For digital display type electrical control gear.
8. utilize a riveting machine riveting process for digital display type high-low pump riveting machine Hydraulic Station as claimed in claim 1, its
Feature is: this technique comprises the steps of:
1) oil pump drain charge: after starting motor one, motor two, the hydraulic oil that low pressure fuel pump is got is through low pressure spill valve module drain charge
Oil sump tank, the hydraulic oil that high-pressure oil pump is got through high pressure kicks valve module drain charge oil sump tank, remaining equal attonity of each valve；
2) riveting pincers become into: the electric magnet YV1 in low pressure spill valve module, the electric magnet YV2 in high pressure kicks valve module and
Electric magnet YV3 in electro-hydraulic reversing valve obtains electric, and the left position of electro-hydraulic reversing valve is connected, the hydraulic oil that high-pressure oil pump and low pressure fuel pump are got
Collaborating to enter riveting pincers oil cylinder rodless cavity together through the left position of electro-hydraulic reversing valve promotes piston to make riveting pincers fast forward through；
3) riveting pincers boosting: when, after riveting mould contact rivet, pressure starts to raise, and now pressure transducer sends signal and makes low pressure spill
Electric magnet YV1 dead electricity in valve module, low pressure fuel pump drain charge；The hydraulic oil that high-pressure oil pump is got goes successively to riveting pincers oil cylinder, riveting
Pincers oil in-cylinder pressure continues to raise, and completes riveting action；
4) riveting pincers return with hydraulic system drain charge: after rivet riveting becomes, and riveting clamps in-oil cylinder pressure and reaches setting of pressure transducer
Constant-pressure, pressure transducer sends signal, cuts off electro-hydraulic reversing valve 13 left end electric magnet YV3, makes electro-hydraulic reversing valve right-hand member electromagnetism
Ferrum YV4 obtains electric, and electro-hydraulic reversing valve is switched to the work of right position；Meanwhile, the YV1 in low pressure spill valve module obtains electric, and low pressure fuel pump is tied
Bundle drain charge, clamps oil cylinder fuel feeding, high-pressure oil pump and low pressure fuel pump oil circuit interflow to riveting and arrives riveting pincers cylinder rod chamber, and riveting pincers oil cylinder is fast
Speed is return；
5) after riveting pincers oil cylinder is return and is put in place, electric magnet YV1, YV2, YV4 power-off, in electro-hydraulic reversing valve, electro-hydraulic commutation is in middle position,
High and low pressure oil pump drain charge, completes one action circulation.
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| CN201610698949.2A CN106151128B (en) | 2016-08-22 | 2016-08-22 | Digital display type high-low pump riveting machine hydraulic station and riveting process |
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| CN201610698949.2A CN106151128B (en) | 2016-08-22 | 2016-08-22 | Digital display type high-low pump riveting machine hydraulic station and riveting process |
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| CN106151128B CN106151128B (en) | 2018-06-01 |
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| CN107913966A (en) * | 2017-11-30 | 2018-04-17 | 江阴振宏重型锻造有限公司 | Oil press for forging |
| CN108533558A (en) * | 2018-06-29 | 2018-09-14 | 神华国华广投（柳州）发电有限责任公司 | A kind of wind turbine hydraulic station double overflow valve block transformation device |
| CN109702134A (en) * | 2018-12-20 | 2019-05-03 | 杭州电子科技大学 | Method is hit in a kind of electro-hydraulic riveting set and its riveting |
| CN110374939A (en) * | 2019-07-19 | 2019-10-25 | 南京理工军邦特种智能装备研究院有限公司 | It is a kind of that the hydraulic system and pressure supply method of two kinds of different pressure are provided |
| CN110961566A (en) * | 2019-12-20 | 2020-04-07 | 山东中车同力达智能机械有限公司 | Digital riveting workstation suitable for operation of crossing rail |
| CN114643330A (en) * | 2022-03-18 | 2022-06-21 | 眉山中车紧固件科技有限公司 | Reinforcing steel bar rivet withdrawing system |
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| CN107725536A (en) * | 2017-11-27 | 2018-02-23 | 四川万冠液压技术股份有限公司 | A kind of hydraulic jack loading test hydraulic system |
| CN107913966A (en) * | 2017-11-30 | 2018-04-17 | 江阴振宏重型锻造有限公司 | Oil press for forging |
| CN108533558A (en) * | 2018-06-29 | 2018-09-14 | 神华国华广投（柳州）发电有限责任公司 | A kind of wind turbine hydraulic station double overflow valve block transformation device |
| CN109702134A (en) * | 2018-12-20 | 2019-05-03 | 杭州电子科技大学 | Method is hit in a kind of electro-hydraulic riveting set and its riveting |
| CN109702134B (en) * | 2018-12-20 | 2020-04-07 | 杭州电子科技大学 | Electro-hydraulic riveting device and riveting method thereof |
| CN110374939A (en) * | 2019-07-19 | 2019-10-25 | 南京理工军邦特种智能装备研究院有限公司 | It is a kind of that the hydraulic system and pressure supply method of two kinds of different pressure are provided |
| CN110374939B (en) * | 2019-07-19 | 2020-05-19 | 南京理工军邦特种智能装备研究院有限公司 | Hydraulic system for providing two different pressures and pressure supply method |
| CN110961566A (en) * | 2019-12-20 | 2020-04-07 | 山东中车同力达智能机械有限公司 | Digital riveting workstation suitable for operation of crossing rail |
| CN114643330A (en) * | 2022-03-18 | 2022-06-21 | 眉山中车紧固件科技有限公司 | Reinforcing steel bar rivet withdrawing system |
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