CN206636883U - A kind of press master cylinder controlling organization of Parallel Control - Google Patents
A kind of press master cylinder controlling organization of Parallel Control Download PDFInfo
- Publication number
- CN206636883U CN206636883U CN201720323748.4U CN201720323748U CN206636883U CN 206636883 U CN206636883 U CN 206636883U CN 201720323748 U CN201720323748 U CN 201720323748U CN 206636883 U CN206636883 U CN 206636883U
- Authority
- CN
- China
- Prior art keywords
- master cylinder
- press master
- valve
- control
- electro
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000008520 organization Effects 0.000 title claims abstract description 21
- 238000006073 displacement reaction Methods 0.000 claims abstract description 27
- 230000005611 electricity Effects 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 26
- 238000005457 optimization Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 2
- 239000010729 system oil Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Control Of Presses (AREA)
Abstract
The utility model discloses a kind of press master cylinder controlling organization of Parallel Control, it is characterised in that：Including controller (7), press master cylinder (4) and oil sources (5), press master cylinder (4）On be provided with least two oil inlets, press master cylinder (4）Oil inlet be connected with oil sources (5)；Press master cylinder（4）On be provided with master cylinder displacement transducer（6）, master cylinder displacement transducer（6）Displacement output end connection controller（7）Displacement signal input；Control press master cylinder is provided between the oil inlet and oil sources (5) of the press master cylinder (4)（4）The parallel connection type electromagnetic valve group in current of oil inlet quantity, controller（7）Control output end connection parallel connection type electromagnetic valve group in current.The drawbacks of overcoming prior art the utility model has the advantage of it, novelty reasonable in design.
Description
Technical field
A kind of press master cylinder controlling organization of Parallel Control is the utility model is related to, belongs to press field.
Background technology
Press is the abbreviation of hydraulic press, is a kind of forming machine for making industrial product shaping by pressure.Press is held
Units are usually hydraulic jack, are moved to setting position using hydraulic control system control hydraulic cylinder, complete product molding work
Make.
In normal conditions, press master cylinder only needs to do the position adjustment of small range press, and required flow is smaller, to control
Required precision is higher；Press is being opened, is shutting down operating mode or when load has big disturbance, and press master cylinder needs high-volume hydraulic oil
Input, could meet the needs of oil cylinder position wide variation.
Conventional hydraulic control system, substantially by a control valve group, hydraulic pressure is controlled to hold plus some auxiliary elements
Units（Hydraulic jack）, its all control work are mainly completed by this control valve group.
Parallel connection type hydraulic control system, refer to a hydraulic actuator（Hydraulic cylinder）, by two or more controls
Valve group processed is controlled to it, and these control valve groups individually can be both controlled to executive component, can join together again
Executive component is controlled.These control valve groups can be same function, but be more that they have different control work(
Can, to meet needs of the executive component under different operating modes.
The oil cylinder for presses control system most of the time is operated in the case of low discharge, is controlled needing a small number of times of big flow
Precision processed is again less demanding.Two kinds of traffic demands are met using the cylinder control system of routine, production cost is higher, Er Qierong
Failure is also easy to produce, press global reliability is difficult to ensure that.
Utility model content
Purpose of utility model of the present utility model is：A kind of press master cylinder controlling organization of Parallel Control, root are provided
According to the control mode of demand switching press master cylinder, the control sensitivity of raising press master cylinder and control accuracy.
In order to solve the above technical problems, the utility model adopts the technical scheme that, a kind of main oil of the press of Parallel Control
Cylinder controlling organization, including controller (7), press master cylinder (4) and oil sources (5), press master cylinder (4）On be provided with least two
Oil inlet, press master cylinder (4）Oil inlet be connected with oil sources (5)；Press master cylinder（4）On be provided with master cylinder displacement sensing
Device（6）, master cylinder displacement transducer（6）Displacement output end connection controller（7）Displacement signal input；The press master
Control press master cylinder is provided between the oil inlet and oil sources (5) of oil cylinder (4)（4）The parallel connection type electromagnetic valve group in current of oil inlet quantity, control
Device processed（7）Control output end connection parallel connection type electromagnetic valve group in current.
Optimization, the press master cylinder controlling organization of above-mentioned Parallel Control, the parallel connection type electromagnetic valve group in current includes big flow
Electro hydraulic on-off valve (1) and low discharge electro-hydraulic proportional valve (3)；The big flow electro hydraulic on-off valve (1) and low discharge electro-hydraulic proportional valve
(3) it is series at press master cylinder (4 after parallel connection）Oil inlet, between oil sources (5).
Optimization, the press master cylinder controlling organization of above-mentioned Parallel Control, the signal of the big flow electro hydraulic on-off valve (1)
Input and controller（7）Big flow control signal output connection；The low discharge electro-hydraulic proportional valve (3) and controller
（7）Small Flow Control signal output part connection.
Optimization, the press master cylinder controlling organization of above-mentioned Parallel Control, the big flow electro hydraulic on-off valve (1) is that band is dead
The Bang-Bang control type electro hydraulic on-off valves in area；The low discharge electro-hydraulic proportional valve (3) is proportion-plus-derivative control type electric-hydraulic proportion
Valve.
Optimization, the press master cylinder controlling organization of above-mentioned Parallel Control, the parallel connection type electromagnetic valve group in current also includes being used for
The maximum up one-way throttle valve (2) with pushing speed of control press master cylinder (4), one end connection of one-way throttle valve (2) are big
The output end of flow electrohydraulic switch valve (1), the oil inlet of the other end connection control press master cylinder (4) of one-way throttle valve (2).
Optimization, the press master cylinder controlling organization of above-mentioned Parallel Control, the switch of the big flow electro hydraulic on-off valve (1)
Flow is more than the switch traffic of low discharge electro-hydraulic proportional valve (3).
In the technical scheme of the application, by installing displacement transducer on master cylinder, make what displacement transducer detected
Master cylinder position signalling passes to controller, and the controller compared with the command signal of master cylinder position, draws it
Control signal controls big flow electro hydraulic on-off valve and low discharge electro-hydraulic proportional valve.When difference is larger, by the electricity of big flow
Liquid switch valve and low discharge electro-hydraulic proportional valve work together, make master cylinder fast approaching specified location；When difference is smaller, close
Big flow electro hydraulic on-off valve, only low discharge electro-hydraulic proportional valve, make master cylinder be accurate to up to specified location.
The technical scheme of the utility model phase is than in traditional press master cylinder controlling organization, by opening big flow is electro-hydraulic
The Parallel Control of valve 1 and low discharge electro-hydraulic proportional valve 3 is closed, disclosure satisfy that master cylinder needs to the difference of flow under press difference operating mode
Ask, that is, reduce cost, shorten the production cycle, system oil rub resistance ability can be improved again, reach the purpose of strengthening system reliability.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Technical characterstic of the present utility model is expanded on further with specific embodiment below in conjunction with the accompanying drawings.
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.
As shown in figure 1, the utility model is a kind of press master cylinder controlling organization of Parallel Control, including controller 7, pressure
Owner's oil cylinder 4 and oil sources 5, at least two oil inlets, oil inlet and the oil sources 5 of press master cylinder 4 are provided with press master cylinder 4
Connection；Master cylinder displacement transducer 6, the displacement output end connection control of master cylinder displacement transducer 6 are provided with press master cylinder 4
The displacement signal input of device 7 processed；Control press master cylinder 4 is provided between the oil inlet and oil sources 5 of the press master cylinder 4
The parallel connection type electromagnetic valve group in current of oil inlet quantity, the control output end connection parallel connection type electromagnetic valve group in current of controller 7.
Master cylinder displacement transducer 6 in the application can use linear type displacement sensor of the prior art（Slide
Rheostatic type）, magnetostriction type linear movement pick-up, the displacement sensing commonly used in the prior art such as infrared type linear movement pick-up
The form of device, its connected mode and metering system use usual way of the prior art, will not be repeated here.
The parallel connection type electromagnetic valve group in current includes big flow electro hydraulic on-off valve 1 and low discharge electro-hydraulic proportional valve 3；The big flow
It is series at after electro hydraulic on-off valve 1 and the parallel connection of low discharge electro-hydraulic proportional valve 3 between the oil inlet of press master cylinder 4, oil sources 5.
The signal input part of the big flow electro hydraulic on-off valve 1 is connected with the big flow control signal output of controller 7；
The low discharge electro-hydraulic proportional valve 3 is connected with the Small Flow Control signal output part of controller 7.
Big flow electro hydraulic on-off valve can use with dead band bang-bang control（Bang-Bang is controlled）, i.e.,：
Low discharge electro-hydraulic proportional valve (3) is proportion-plus-derivative control type electro-hydraulic proportional valve, because the dead band of proportioning valve is larger, is added
Enter dead area compensation, its controller is as follows：
Wherein,Inputted for proportioning valve；
For site error；,Respectively ratio and the differential gain；
For proportioning valve dead area compensation value；
The parallel connection type electromagnetic valve group in current also includes being used to control the maximum up unidirectional section with pushing speed of press master cylinder 4
Flow valve 2, the output end of one end connection big flow electro hydraulic on-off valve 1 of one-way throttle valve 2, the other end connection of one-way throttle valve 2
Control the oil inlet of press master cylinder 4.
The switch traffic of the big flow electro hydraulic on-off valve 1 is more than the switch traffic of low discharge electro-hydraulic proportional valve (3).
The course of work of the application is as follows：Because displacement transducer 6 is arranged on press master cylinder 4, therefore the main oil of press
The displacement signal of cylinder 4 can be displaced by sensor 6 and detect, the displacement signal detected is transferred to control by displacement transducer 6
Device 7, after controller 7 receives the displacement signal of press master cylinder 4, it is compared with master cylinder position command signal.Work as press
When the position command of master cylinder 4 and the larger difference of displacement signal, controller 7 is simultaneously to big flow electro hydraulic on-off valve 1 and low discharge
Electro-hydraulic proportional valve 3 sends control signal so that the electro hydraulic on-off valve 1 and low discharge electro-hydraulic proportional valve 3 of big flow work simultaneously, make
The fast approaching specified location of master cylinder 4；When difference is smaller, controller 7 only sends control letter to low discharge electro-hydraulic proportional valve 3
Number, big flow electro hydraulic on-off valve 1 is closed, and only low discharge electro-hydraulic proportional valve 3 works, and master cylinder 4 is accurate to up to specified location.
It is exactly a kind of operation principle of the press master cylinder controlling organization of Parallel Control of the present utility model above.
The technical scheme of the utility model phase is than in traditional press master cylinder controlling organization, by opening big flow is electro-hydraulic
The Parallel Control of valve 1 and low discharge electro-hydraulic proportional valve 3 is closed, disclosure satisfy that master cylinder needs to the difference of flow under press difference operating mode
Ask, that is, reduce cost, shorten the production cycle, system oil rub resistance ability can be improved again, reach the purpose of strengthening system reliability.
Certainly, it is to limitation of the present utility model that described above, which is not, and the utility model is also not limited to the example above, this
The those of ordinary skill of technical field, in essential scope of the present utility model, the variations, modifications, additions or substitutions made, all
The scope of protection of the utility model should be belonged to.
Claims (6)
- A kind of 1. press master cylinder controlling organization of Parallel Control, it is characterised in that：Including controller (7), press master cylinder (4) With oil sources (5), press master cylinder (4）On be provided with least two oil inlets, press master cylinder (4）Oil inlet and oil sources (5) Connection；Press master cylinder（4）On be provided with master cylinder displacement transducer（6）, master cylinder displacement transducer（6）Displacement output end Connect controller（7）Displacement signal input；Control is provided between the oil inlet and oil sources (5) of the press master cylinder (4) Moulding press master cylinder（4）The parallel connection type electromagnetic valve group in current of oil inlet quantity, controller（7）Control output end connection parallel connection type electro hydraulic valve Group.
- 2. the press master cylinder controlling organization of Parallel Control according to claim 1, it is characterised in that：The parallel connection type electricity Liquid valve group includes big flow electro hydraulic on-off valve (1) and low discharge electro-hydraulic proportional valve (3)；The big flow electro hydraulic on-off valve (1) and Press master cylinder (4 is series at after low discharge electro-hydraulic proportional valve (3) is in parallel）Oil inlet, between oil sources (5).
- 3. the press master cylinder controlling organization of Parallel Control according to claim 2, it is characterised in that：The big flow electricity The signal input part and controller of liquid switch valve (1)（7）Big flow control signal output connection；The electro-hydraulic ratio of low discharge Example valve (3) and controller（7）Small Flow Control signal output part connection.
- 4. the press master cylinder controlling organization of Parallel Control according to claim 2, it is characterised in that：The big flow electricity Liquid switch valve (1) is the Bang-Bang control type electro hydraulic on-off valves with dead band；The low discharge electro-hydraulic proportional valve (3) is ratio Differential control type electro-hydraulic proportional valve.
- 5. the press master cylinder controlling organization of Parallel Control according to claim 2, it is characterised in that：The parallel connection type electricity Liquid valve group also includes being used to control the maximum up one-way throttle valve (2) with pushing speed of press master cylinder (4), one-way throttle valve (2) output end of one end connection big flow electro hydraulic on-off valve (1), the other end connection control press master of one-way throttle valve (2) The oil inlet of oil cylinder (4).
- 6. the press master cylinder controlling organization of Parallel Control according to claim 2, it is characterised in that：The big flow electricity The switch traffic of liquid switch valve (1) is more than the switch traffic of low discharge electro-hydraulic proportional valve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720323748.4U CN206636883U (en) | 2017-03-30 | 2017-03-30 | A kind of press master cylinder controlling organization of Parallel Control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720323748.4U CN206636883U (en) | 2017-03-30 | 2017-03-30 | A kind of press master cylinder controlling organization of Parallel Control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206636883U true CN206636883U (en) | 2017-11-14 |
Family
ID=60262191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720323748.4U Expired - Fee Related CN206636883U (en) | 2017-03-30 | 2017-03-30 | A kind of press master cylinder controlling organization of Parallel Control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206636883U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110230613A (en) * | 2019-04-17 | 2019-09-13 | 杭州国辰正域科技有限公司 | The large range high resolution rate hydraulic speed regulation system of handoff technique is closed based on more valve groups |
| CN112096670A (en) * | 2020-09-21 | 2020-12-18 | 广东海德利森一氢科技有限公司 | Hydraulic system and hydraulic pressure control method |
-
2017
- 2017-03-30 CN CN201720323748.4U patent/CN206636883U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110230613A (en) * | 2019-04-17 | 2019-09-13 | 杭州国辰正域科技有限公司 | The large range high resolution rate hydraulic speed regulation system of handoff technique is closed based on more valve groups |
| CN112096670A (en) * | 2020-09-21 | 2020-12-18 | 广东海德利森一氢科技有限公司 | Hydraulic system and hydraulic pressure control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109441905B (en) | Variable pressure difference load sensitive multi-way valve | |
| CN102425581B (en) | Pilot flow closed-loop controlled flow valve and control method | |
| CN101571155A (en) | Digital electric-hydraulic synchronous control system | |
| CN201739246U (en) | Mechanical locking type double-cylinder synchronous erecting support hydraulic circuit | |
| CN104879335B (en) | A kind of multi-hydraulic-cylinder synchronous control system and its control method | |
| CN206636883U (en) | A kind of press master cylinder controlling organization of Parallel Control | |
| CN204591851U (en) | Multistage flow pressure compound control system | |
| CN201396344Y (en) | Digital electro-hydraulic isochronous control system | |
| CN204041583U (en) | A kind of servo-closed type hydraulic differential device | |
| CN102705287B (en) | Integrated electro-hydraulic proportional hydraulic valve bank | |
| CN101975201A (en) | Single-pump multi-executing mechanism hydraulic control system | |
| CN105201951B (en) | The controlled TBM support hydraulic pressure system of high-efficiency high-accuracy flow | |
| CN108005971B (en) | Double-valve-control-cylinder load-carrying-force-control compensation cooperative device and control method thereof | |
| CN203114764U (en) | Load-sensitive electro-hydraulic proportional multi-way valve | |
| CN104389830A (en) | Intelligent synchronous type hydraulic hoist | |
| CN105465079B (en) | A kind of brake oil circuit control | |
| CN103807236B (en) | Valve control unit loads mouth independently controls multi-cylinder assignment of traffic hydraulic system | |
| CN203051271U (en) | Pipe piece assembly lifting movement rapid synchronous hydraulic system | |
| CN110671376B (en) | Engineering machinery load sensitive-inlet-outlet independent hydraulic system and control method thereof | |
| CN108035945B (en) | Control valve group for quantitative system flow proportion output | |
| CN207634414U (en) | A kind of U-shaped sealing frame system of ship lift | |
| CN107939784A (en) | A kind of multi-hydraulic-cylinder control system and its control method | |
| CN204851824U (en) | Compound control formula variable pump | |
| CN204755440U (en) | Many pneumatic cylinders synchronous control system | |
| CN206530575U (en) | A kind of hydraulic system for realizing the stepless accurate speed governing of hydraulic press |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171114 |