CN106351893A - Main hydraulic system of mechanical press - Google Patents
Main hydraulic system of mechanical press Download PDFInfo
- Publication number
- CN106351893A CN106351893A CN201611061134.XA CN201611061134A CN106351893A CN 106351893 A CN106351893 A CN 106351893A CN 201611061134 A CN201611061134 A CN 201611061134A CN 106351893 A CN106351893 A CN 106351893A
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- China
- Prior art keywords
- valve
- directional control
- control valve
- solenoid directional
- binding clasp
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/16—Control arrangements for fluid-driven presses
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a main hydraulic system of a mechanical press. The main hydraulic system comprises a plunger pump oil absorbing filter, a gear pump oil absorbing filter, a motor, a double pump, a two-stage valve, an electromagnetic overflow valve, a double-cylinder filter, an energy accumulator, a lower die clamping apparatus electromagnetic directional control valve, an overload protection electromagnetic directional control valve, a worktable clamping electromagnetic directional control valve, a hydraulic control one-way valve and a worktable jacking electromagnetic directional control valve; the lower die clamping apparatus electromagnetic directional control valve is a Y-shaped three-position electromagnetic directional control valve with a median function. According to the main hydraulic system of the mechanical press, the energy accumulator and the electromagnetic overflow valve are additionally arranged, and the lower die clamping apparatus electromagnetic directional control valve is replaced with the Y-shaped three-position electromagnetic directional control valve with the median function. When the pressure needs to be maintained after actions of all execution mechanisms are finished, the pressure is maintained by the energy accumulator; after the high-low-pressure double pump is subjected to no-load unloading through the electromagnetic overflow valve, a motor of the double pump is powered off and the pump is stopped, so that heating of the system is reduced, and energy consumption of the hydraulic system is reduced, the utilization rate of energy is improved, and the aims of energy saving and environment friendliness are achieved.
Description
Technical field
The present invention is a kind of main hydraulic system of punching machine, is the requisite ingredient of punching machine, belongs to
In punching machine technical field.
Background technology
Hydraulic system is requisite ingredient in punching machine, with the development of auto industry, automobile making
There is higher requirement in factory to energy utilization rate, and then has higher restriction to the energy consumption of hydraulic system.
The main hydraulic system of existing machinery forcing press, during high-low pressure duplex pump startup, duplex pump needs to carry load to start, right
Duplex pump has greater impact；After startup, after each actuator is carried out putting in place, duplex pump motor is unable to power-off, needs high pressure
Pressurize, the twin-stage valve continuous high-pressure overflow heating of duplex pump discharge, causes high energy consumption, and has a strong impact on the use longevity of duplex pump
Life.
Content of the invention
For solving the problems referred to above that prior art exists, the present invention will design one kind and can use the longevity with reducing energy consumption, raising
The main hydraulic system of the punching machine of life.
To achieve these goals, technical scheme is as follows:
A kind of main hydraulic system of punching machine, including plunger displacement pump oil absorption filter, gear pump oil absorption filter, electricity
Machine, duplex pump, twin-stage valve, electromagnetic relief valve, double-drum filter, check valve, ball valve a, ball valve b, accumulator, air relief valve, lower mould
Binding clasp solenoid directional control valve, overload protection solenoid directional control valve, worktable clamping solenoid directional control valve, hydraulic control one-way valve a, fluid-control one-way
Valve b, pressure transducer a, bench top play solenoid directional control valve and pressure transducer b；
Described duplex pump and motor connection, the entrance of the plunger displacement pump in duplex pump is connected with plunger displacement pump oil absorption filter,
The entrance of another gear pump is connected with gear pump oil absorption filter, and the outlet of duplex pump is connected with twin-stage valve；Working connection is through institute
The twin-stage valve stated is connected with double-drum filter, between separate a branch road and be connected with electromagnetic relief valve；
The outlet of described double-drum filter is protected with two lower mould binding clasp solenoid directional control valves, overload respectively through check valve
Shield solenoid directional control valve, air relief valve and ball valve a connect；
Described ball valve a is connected with ball valve b and accumulator respectively；
Described ball valve b, twin-stage valve, electromagnetic relief valve, two lower mould binding clasp solenoid directional control valves, overload protection electromagnetism change
Play solenoid directional control valve to valve, worktable clamping solenoid directional control valve and bench top to be all connected on main oil return pipe；
It is tight with die clamp under left workbench that two described lower mould binding clasp solenoid directional control valves pass through hydraulic control one-way valve a respectively
Under device and right workbench, mould binding clasp connects, and described overload protection solenoid directional control valve is connected with overload protection valve, described work
Station clamping solenoid directional control valve is connected with worktable clamping device, and described bench top plays solenoid directional control valve and passes through hydraulic control one-way valve
B is connected with workbench jack-up cylinder；
Working connection after described air relief valve decompression respectively with overload protection solenoid directional control valve, worktable clamping electromagnetic switch
Valve and bench top play solenoid directional control valve and connect；
It is also respectively provided with the entrance pipe of mould binding clasp under mould binding clasp and right workbench under described left workbench
Pressure transducer a, the described entrance pipe of overload protection valve is provided with pressure transducer b；
Described lower mould binding clasp solenoid directional control valve is changed to the three-position electromagnetic reversal valve of y type Median Function.
Compared with prior art, the method have the advantages that
1st, the present invention sets up accumulator, for the termination of pumping pressurize work after each actuator execution it is not necessary to utilize
Duplex pump high pressure pressurize, it is to avoid twin-stage valve continuous high-pressure overflow heating, reduces energy consumption, also improves making of duplex pump simultaneously
Use the life-span.
2nd, the present invention sets up electromagnetic relief valve, and during duplex pump startup, electromagnetic relief valve obtains electric, duplex pump No Load Start, electricity
After pump group starts completely, electromagnetic relief valve power-off, system sets up pressure, reduces the impact of duplex pump, improves duplex pump
Service life with motor；After each actuator execution, this electromagnetic relief valve obtains electric, carries out unloaded off-load to duplex pump,
Duplex pump motor power-off termination of pumping, it is not necessary to the continuous firing of duplex pump and motor, decreases the heating of system, reduces system
Energy consumption, improves energy utilization rate it is achieved that green equips industry.
3rd, the lower mould binding clasp solenoid directional control valve of the present invention is changed to the three-position electromagnetic reversal valve of y type Median Function, this electromagnetism
Reversal valve combines hydraulic control one-way valve and uses, and is switched to middle position, carries out pressurize using hydraulic control one-way valve after clamping, it is to avoid simple profit
Carry out pressurize with duplex pump.
4th, in sum, the present invention on the basis of existing technology, is additionally arranged accumulator and electromagnetic relief valve, and lower mould
Binding clasp solenoid directional control valve is changed to the three-position electromagnetic reversal valve of y type Median Function.Pressurize is needed after the completion of each actuator action
When, pressurize is carried out by accumulator, high-low pressure duplex pump after electromagnetic relief valve carries out unloaded off-load, duplex pump motor power-off
Termination of pumping, and then decrease the heating of system, reduce the energy consumption of hydraulic system, improve energy utilization rate, reach energy-saving ring
The purpose protected.
Brief description
The present invention only has 1, accompanying drawing, wherein:
Fig. 1 is punching machine main hydraulic system schematic diagram.
In figure: 1, plunger displacement pump oil absorption filter；2nd, gear pump oil absorption filter；3rd, motor；4th, duplex pump；5th, twin-stage valve；
6th, electromagnetic relief valve；7th, double-drum filter；8th, check valve；9th, ball valve a；10th, ball valve b；11st, accumulator；12nd, air relief valve；13rd, under
Mould binding clasp solenoid directional control valve；14th, overload protection solenoid directional control valve；15th, worktable clamping solenoid directional control valve；16th, fluid-control one-way
Valve a；17th, hydraulic control one-way valve b；18th, pressure transducer a；19th, bench top plays solenoid directional control valve；20th, pressure transducer b.
Specific embodiment
Below in conjunction with the accompanying drawings, to the present invention be embodied as be described further.As shown in figure 1, a kind of punching machine
Main hydraulic system, including plunger displacement pump oil absorption filter 1, gear pump oil absorption filter 2, motor 3, duplex pump 4, twin-stage valve 5, electromagnetism
Overflow valve 6, double-drum filter 7, check valve 8, ball valve a9, ball valve b10, accumulator 11, air relief valve 12, lower mould binding clasp electromagnetism change
To valve 13, overload protection solenoid directional control valve 14, worktable clamping solenoid directional control valve 15, hydraulic control one-way valve a16, hydraulic control one-way valve
B17, pressure transducer a18, bench top play solenoid directional control valve 19 and pressure transducer b20；
Described duplex pump 4 is connected with motor 3, and the entrance of the plunger displacement pump in duplex pump 4 is with plunger displacement pump oil absorption filter 1 even
Connect, the entrance of another gear pump is connected with gear pump oil absorption filter 2, the outlet of duplex pump 4 is connected with twin-stage valve 5；Main oil
Road is connected with double-drum filter 7 through described twin-stage valve 5, between separate a branch road and be connected with electromagnetic relief valve 6；
The outlet of described double-drum filter 7 through check valve 8 respectively with two lower mould binding clasp solenoid directional control valves 13, mistakes
Carry protection solenoid directional control valve 14, air relief valve 12 and ball valve a9 to connect；
Described ball valve a9 is connected with ball valve b10 and accumulator 11 respectively；
Described ball valve b10, twin-stage valve 5, the lower mould binding clasp solenoid directional control valve 13 of electromagnetic relief valve 6, two, overload protection
Solenoid directional control valve 14, worktable clamping solenoid directional control valve 15 and bench top play solenoid directional control valve 19 and are all connected to main oil return pipe
On；
Two described lower mould binding clasp solenoid directional control valves 13 pass through mould under hydraulic control one-way valve a16 and left workbench respectively
Under binding clasp and right workbench, mould binding clasp connects, and described overload protection solenoid directional control valve 14 is connected with overload protection valve, institute
The worktable clamping solenoid directional control valve 15 stated is connected with worktable clamping device, and described bench top plays solenoid directional control valve 19 and passes through
Hydraulic control one-way valve b17 is connected with workbench jack-up cylinder；
Working connection after described air relief valve 12 decompression respectively with overload protection solenoid directional control valve 14, worktable clamping electromagnetism
Reversal valve 15 and bench top play solenoid directional control valve 19 and connect；
It is also respectively provided with the entrance pipe of mould binding clasp under mould binding clasp and right workbench under described left workbench
Pressure transducer a18, the described entrance pipe of overload protection valve is provided with pressure transducer b20；
Described lower mould binding clasp solenoid directional control valve 13 is changed to the three-position electromagnetic reversal valve of y type Median Function.
The method of work of the present invention is as follows:
A: first electromagnetic relief valve 6 electric magnet is obtained electric, make system be in Light Condition, now start the driving of duplex pump 4
Motor 3, after duplex pump 4 starts completely, by electromagnetic relief valve 6 electric magnet dead electricity, system begins setting up pressure, reduces to duplex
The impact of pump 4, improves the service life of duplex pump 4, starts topping up to accumulator 11 simultaneously.
B: during forcing press normal operating conditions, electric magnet dt2 and dt4 of lower mould binding clasp solenoid directional control valve 13 obtain electric, under
Mould binding clasp starts to clamp, when the pressure transducer a18 of lower mould binding clasp solenoid directional control valve 13 rear end reaches setting upper pressure limit,
Lower mould binding clasp solenoid directional control valve 13 is switched to middle position, the control mouth off-load of hydraulic control one-way valve a16, and lower mould binding clasp clamping is in
Packing state, it is to avoid carry out pressurize using duplex pump 4 merely；Overload protection solenoid directional control valve 14 electric magnet is in dead electricity shape
State, pressure oil carries out topping up through air relief valve 12 and overload protection solenoid directional control valve 14 to overload protection oil circuit, works as pressure sensing
When device b20 reaches setting upper limit of pressure, overload protection oil circuit is in packing state；Bench top plays solenoid directional control valve 19 electromagnetism
Ferrum dt8 obtains electric, workbench jack-up oil circuit off-load, after workbench falls completely, worktable clamping solenoid directional control valve 15 electric magnet dt7
Obtain electric, worktable clamping device starts to clamp, and after clamping puts in place, worktable clamping device oil circuit is in packing state.When forcing press
After all actuators are carried out putting in place, electromagnetic relief valve 6 electric magnet is obtained electric, the unloaded off-load of duplex pump 4, motor 3 power-off, double
Connection pump 4 shuts down, and the pressurize of system work to be completed by accumulator 11 it is not necessary to the continuous firing of duplex pump 4 and motor 3,
Decrease the heating of system, reduce the energy consumption of system.When in pressure transducer a18, any one pressure drops to setting pressure
During lower limit, electric magnet dt2 and dt4 of lower mould binding clasp solenoid directional control valve 13 obtains electric, by accumulator 11 fluid infusion, pressure transducer
After a18 detection value stabilization, when detected value is less than the lower limit pre-alarm pressure that pressure transducer a18 sets pressure, electromagnetism overflow
Valve 6 electric magnet obtains electric, and duplex pump 4 and motor 3 must electrically activate, and after duplex pump 4 starts completely, so that electromagnetic relief valve 6 electric magnet is lost
Electricity, system begins setting up pressure, carries out topping up repairing to whole system, when pressure transducer a18 and pressure transducer b20 reaches
To when setting upper pressure limit, lower mould binding clasp solenoid directional control valve 13 is switched to middle position, and electromagnetic relief valve 6 obtains electric, duplex pump 4 zero load
Off-load, motor 3 power-off, duplex pump 4 shuts down；When detected value is higher than the lower limit pre-alarm that pressure transducer a18 sets pressure
During pressure, lower mould binding clasp solenoid directional control valve 13 is switched to middle position, and duplex pump 4 is started without, and repeats above-mentioned job order and enters
Row pressurize.
C: when forcing press is in off working state, electric magnet dt1 and dt3 of lower mould binding clasp solenoid directional control valve 13 obtain electric,
Binding clasp is made to be in releasing orientation；Worktable clamping solenoid directional control valve 15 electric magnet dt6 obtains electric, so that binding clasp is unclamped, binding clasp
After being totally released, bench top plays solenoid directional control valve 19 electric magnet dt9 and obtains electric, makes the complete jack-up of workbench, after jack-up puts in place, is
System will be in packing state, now obtain electromagnetic relief valve 6 electric magnet electric, the unloaded off-load of duplex pump 4, motor 3 power-off, duplex pump
4 shut down, and the pressurize work of system to be completed by accumulator 11, it is not necessary to the continuous firing of duplex pump 4 and motor 3, to reduce
The heating of system, reduces the energy consumption of system.
Claims (1)
1. a kind of punching machine main hydraulic system, including plunger displacement pump oil absorption filter (1), gear pump oil absorption filter (2), electricity
Machine (3), duplex pump (4), twin-stage valve (5), electromagnetic relief valve (6), double-drum filter (7), check valve (8), ball valve a (9), ball valve
B (10), accumulator (11), air relief valve (12), lower mould binding clasp solenoid directional control valve (13), overload protection solenoid directional control valve (14),
Worktable clamping solenoid directional control valve (15), hydraulic control one-way valve a (16), hydraulic control one-way valve b (17), pressure transducer a (18), work
Platform jack-up solenoid directional control valve (19) and pressure transducer b (20)；
Described duplex pump (4) is connected with motor (3), the entrance of plunger displacement pump in duplex pump (4) and plunger displacement pump oil absorption filter
(1) connect, the entrance of another gear pump is connected with gear pump oil absorption filter (2), the outlet of duplex pump (4) and twin-stage valve
(5) connect；Working connection is connected with double-drum filter (7) through described twin-stage valve (5), between separate a branch road and electromagnetic relief valve
(6) connect；
The outlet of described double-drum filter (7) through check valve (8) respectively with two lower moulds binding clasp solenoid directional control valve (13),
Overload protection solenoid directional control valve (14), air relief valve (12) and ball valve a (9) connect；
Described ball valve a (9) is connected with ball valve b (10) and accumulator (11) respectively；
Described ball valve b (10), twin-stage valve (5), electromagnetic relief valve (6), two lower moulds binding clasp solenoid directional control valve (13), overloads
Protection solenoid directional control valve (14), worktable clamping solenoid directional control valve (15) and bench top play solenoid directional control valve (19) and are all connected to
On main oil return pipe；
Two described lower moulds binding clasp solenoid directional control valve (13) pass through mould under hydraulic control one-way valve a (16) and left workbench respectively
Under binding clasp and right workbench, mould binding clasp connects, and described overload protection solenoid directional control valve (14) is connected with overload protection valve,
Described worktable clamping solenoid directional control valve (15) is connected with worktable clamping device, and described bench top plays solenoid directional control valve
(19) it is connected with workbench jack-up cylinder by hydraulic control one-way valve b (17)；
Working connection after described air relief valve (12) decompression respectively with overload protection solenoid directional control valve (14), worktable clamping electromagnetism
Reversal valve (15) and bench top play solenoid directional control valve (19) and connect；
It is also respectively provided with pressure on the entrance pipe of mould binding clasp under mould binding clasp and right workbench under described left workbench
Sensor a (18), the described entrance pipe of overload protection valve is provided with pressure transducer b (20)；
Described lower mould binding clasp solenoid directional control valve (13) is changed to the three-position electromagnetic reversal valve of y type Median Function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611061134.XA CN106351893A (en) | 2016-11-24 | 2016-11-24 | Main hydraulic system of mechanical press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611061134.XA CN106351893A (en) | 2016-11-24 | 2016-11-24 | Main hydraulic system of mechanical press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106351893A true CN106351893A (en) | 2017-01-25 |
Family
ID=57862807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611061134.XA Pending CN106351893A (en) | 2016-11-24 | 2016-11-24 | Main hydraulic system of mechanical press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106351893A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111502970A (en) * | 2020-04-20 | 2020-08-07 | 华润电力投资有限公司北方分公司 | Start-stop control method and system for top shaft oil pump and overflow electromagnetic valve |
| CN112789125A (en) * | 2018-10-01 | 2021-05-11 | 萨尔瓦尼尼意大利股份公司 | Hydraulic driving system of punching equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2852100Y (en) * | 2005-12-23 | 2006-12-27 | 中国矿业大学 | Hydraulic system of high-speed wire rope and gasket friction experiment machine |
| CN102862316A (en) * | 2012-10-08 | 2013-01-09 | 北京索普液压机电有限公司 | Press machine and hydraulic control system thereof |
| CN203892280U (en) * | 2014-06-09 | 2014-10-22 | 常州信息职业技术学院 | Electro-hydraulic proportional valve control system of combined machine tool |
| CN104728582A (en) * | 2015-03-03 | 2015-06-24 | 江苏扬力集团有限公司 | Hydraulic lubrication synthetic system of closed type four-point mechanical press |
| CN206190624U (en) * | 2016-11-24 | 2017-05-24 | 一重集团大连设计研究院有限公司 | Mechanical press's main hydraulic system |
-
2016
- 2016-11-24 CN CN201611061134.XA patent/CN106351893A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2852100Y (en) * | 2005-12-23 | 2006-12-27 | 中国矿业大学 | Hydraulic system of high-speed wire rope and gasket friction experiment machine |
| CN102862316A (en) * | 2012-10-08 | 2013-01-09 | 北京索普液压机电有限公司 | Press machine and hydraulic control system thereof |
| CN203892280U (en) * | 2014-06-09 | 2014-10-22 | 常州信息职业技术学院 | Electro-hydraulic proportional valve control system of combined machine tool |
| CN104728582A (en) * | 2015-03-03 | 2015-06-24 | 江苏扬力集团有限公司 | Hydraulic lubrication synthetic system of closed type four-point mechanical press |
| CN206190624U (en) * | 2016-11-24 | 2017-05-24 | 一重集团大连设计研究院有限公司 | Mechanical press's main hydraulic system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112789125A (en) * | 2018-10-01 | 2021-05-11 | 萨尔瓦尼尼意大利股份公司 | Hydraulic driving system of punching equipment |
| CN111502970A (en) * | 2020-04-20 | 2020-08-07 | 华润电力投资有限公司北方分公司 | Start-stop control method and system for top shaft oil pump and overflow electromagnetic valve |
| CN111502970B (en) * | 2020-04-20 | 2022-06-17 | 华润电力投资有限公司北方分公司 | Start-stop control method and system for top shaft oil pump and overflow electromagnetic valve |
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Application publication date: 20170125 |
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