CN107477037A - A kind of heavy aluminium stretching-machine bit synchronous clamping device and method - Google Patents
A kind of heavy aluminium stretching-machine bit synchronous clamping device and method Download PDFInfo
- Publication number
- CN107477037A CN107477037A CN201710864233.XA CN201710864233A CN107477037A CN 107477037 A CN107477037 A CN 107477037A CN 201710864233 A CN201710864233 A CN 201710864233A CN 107477037 A CN107477037 A CN 107477037A
- Authority
- CN
- China
- Prior art keywords
- drive cylinder
- cylinder
- upper jaw
- bit
- jaw
- 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.)
- Granted
Links
Classifications
-
- 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
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/22—Synchronisation of the movement of two or more servomotors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
Abstract
The invention provides a kind of heavy aluminium stretching-machine bit synchronous clamping device and method, stretching-machine includes stretching head and the jaw on stretching head, jaw includes upper jaw and lower jaw, including upper jaw drive cylinder, lower jaw drive cylinder, syncmotor and hydraulic system, the cylinder body of the upper jaw drive cylinder connects with stretching head, piston rod connects with upper jaw, and the cylinder body of the lower jaw drive cylinder connects with stretching head, and piston rod connects with lower jaw.The present invention realizes the synchronous clamping of heavy aluminium section bar seven-roll Abramsen machine bit, ensures that aluminium section bar is difficult for drop-off in stretching by the integrated application of syncmotor, make-up valve, sequence valve and overflow valve.
Description
Technical field
The invention belongs to technical field of metallurgical equipment, and in particular to a kind of heavy aluminium stretching-machine bit synchronous clamping
Apparatus and method.
Background technology
The tilting jaw that domestic offline seven-roll Abramsen machine uses at present is clamped to aluminium section bar before the stretching, typically
That bit acts respectively, thus exist bit clamp aluminium section bar length it is different, be easy for coming off during stretching
Aluminium section bar.
The content of the invention
The purpose of the present invention be overcome prior art can not bit and meanwhile act clamp section bar technical problem.
Therefore, the invention provides a kind of heavy aluminium stretching-machine bit synchronous clamping device, stretching-machine includes drawing
Extension head and the jaw on stretching head, jaw include upper jaw and lower jaw, including upper jaw drive cylinder, lower jaw drive
Dynamic oil cylinder, syncmotor and hydraulic system, the cylinder body of the upper jaw drive cylinder connect with stretching head, piston rod and upper jaw
Connection, the cylinder body of the lower jaw drive cylinder connect with stretching head, and piston rod connects with lower jaw；
Both the upper jaw drive cylinder and lower jaw drive cylinder oil circuits are in parallel, and the hydraulic system is driven including bit
Dynamic oil cylinder piston chamber liquid feed valve, bit drive cylinder plunger shaft tapping valve, bit drive cylinder rod end chamber feed liquor
Valve and bit drive cylinder rod end chamber tapping valve, the bit drive cylinder plunger shaft liquid feed valve, syncmotor
Outlet, upper jaw drive cylinder and lower jaw drive cylinder parallel connection oil circuit, bit drive cylinder rod end chamber tapping valve according to
Secondary connection forms loop, and the piston cylinder of the upper jaw drive cylinder and the piston cylinder of lower jaw drive cylinder are and syncmotor
Outlet, bit drive cylinder rod end chamber liquid feed valve, upper jaw drive cylinder and the lower jaw drive cylinder
Oil circuit, syncmotor and bit drive cylinder plunger shaft tapping valve in parallel are sequentially communicated to form loop.
The hydraulic system also includes upper jaw drive cylinder piston rod cylinder sequence valve, located at the oil of upper jaw drive cylinder
It is in parallel with the oil circuit of lower jaw drive cylinder after on road.
It is equipped between the piston cylinder of the jaw drive cylinder and the piston cylinder and syncmotor of lower jaw drive cylinder
Also it is connected with after the piston cylinder end parallel connection of both make-up valves, the upper jaw drive cylinder and lower jaw drive cylinder by pipeline
Overflow valve.
The upper jaw and lower jaw are tilting jaw, are 20-25 ° with horizontal direction angle.
The upper jaw drive cylinder is two, respectively the first upper jaw drive cylinder and the second upper jaw driving oil
Cylinder, it is set up in parallel along upper jaw width, the lower jaw drive cylinder is two, respectively the first lower jaw drive cylinder
With the second lower jaw drive cylinder, it is set up in parallel along lower jaw width.
The clamping face of the upper jaw and lower jaw is the rectangle flank of tooth.
Present invention also offers a kind of heavy aluminium stretching-machine bit synchronous clamping method, stretched using heavy aluminium
Machine bit synchronous clamping device, when the aluminium that is stretched delivers to jaw, bit drive cylinder plunger shaft liquid feed valve and
Bit drive cylinder rod end chamber tapping valve is opened, and then the oil sources of hydraulic system passes through bit drive cylinder piston
Chamber liquid feed valve, synchronized motor are averagely allocated to the piston cylinder of upper jaw drive cylinder and the piston of lower jaw drive cylinder
Cylinder, meanwhile, the rod end chamber of upper jaw drive cylinder and the rod end chamber of lower jaw drive cylinder drive oil by bit
Cylinder piston rod chamber tapping valve oil extraction, upper jaw and lower jaw 2 are driven respectively, jaw is synchronously clamped.
When the aluminium that is stretched delivers to jaw, the upper jaw drive cylinder piston rod on upper jaw drive cylinder oil circuit
Cylinder sequence valve is opened, and the deadweight for making pressure value be adjusted to upper jaw by oil-feed is equal.
After jaw clamps, stretching-machine starts to stretch, bit drive cylinder plunger shaft liquid feed valve, bit driving oil
Cylinder plunger shaft tapping valve, bit oil cylinder piston rod cavity liquid feed valve, bit oil cylinder piston rod cavity tapping valve are turned off,
Now, the aluminium that is stretched is outside to the active force of jaw, and upper jaw drive cylinder and lower jaw drive cylinder are in passive and clamped
State, for both plunger shafts by make-up valve fluid infusion, rod end chamber is by upper jaw drive cylinder piston rod cylinder sequence valve and overflows
Flow valve discharge opeing.
The beneficial effects of the invention are as follows：The present invention should by the synthesis of syncmotor, make-up valve, sequence valve and overflow valve
With realizing the synchronous clamping of heavy aluminium section bar seven-roll Abramsen machine bit, ensure that aluminium section bar is difficult for drop-off in stretching.
It is described in further details below in conjunction with accompanying drawing.
Brief description of the drawings
Fig. 1 is the structural representation of tilting jaw；
Fig. 2 is tilting jaw motion principle figure.
In figure：1st, upper jaw；2nd, lower jaw；3rd, the first upper jaw drive cylinder；4th, the second upper jaw drive cylinder；5th,
One lower jaw drive cylinder；6th, the second lower jaw drive cylinder；7th, stretching head；8th, bit drive cylinder plunger shaft feed liquor
Valve；9th, bit drive cylinder plunger shaft tapping valve；10th, bit oil cylinder piston rod cavity liquid feed valve；11st, bit oil
Cylinder piston rod chamber tapping valve；12nd, syncmotor；13rd, syncmotor discharge control valve block；14th, make-up valve；15th, the first upper jaw
Drive cylinder piston rod cylinder sequence valve；16th, the second upper jaw drive cylinder piston rod cylinder sequence valve；17th, syncmotor oil return is carried on the back
Pressure valve；18th, overflow valve.
Embodiment
Embodiment 1：
Present embodiments provide a kind of heavy aluminium stretching-machine bit synchronous clamping device, stretching-machine include stretching head 7 with
And the jaw on stretching head 7, jaw include upper jaw 1 and lower jaw 2, including the driving of upper jaw drive cylinder, lower jaw
Oil cylinder, syncmotor 12 and hydraulic system, the cylinder body and stretching head 7 of the upper jaw drive cylinder connect, piston rod and upper pincers
Mouth 1 connects, and the cylinder body and stretching head 7 of the lower jaw drive cylinder connect, and piston rod and lower jaw 2 connect；
Both the upper jaw drive cylinder and lower jaw drive cylinder oil circuits are in parallel, and the hydraulic system is driven including bit
Dynamic oil cylinder piston chamber liquid feed valve 8, bit drive cylinder plunger shaft tapping valve 9, bit drive cylinder rod end chamber enter
Liquid valve and bit drive cylinder rod end chamber tapping valve, the bit drive cylinder plunger shaft liquid feed valve 8, synchronous horse
Up to 12 outlets, upper jaw drive cylinder and lower jaw drive cylinder parallel connection oil circuit, bit drive cylinder rod end chamber discharge opeing
Valve is sequentially communicated to form loop, the piston cylinder of the upper jaw drive cylinder and the piston cylinder of lower jaw drive cylinder with it is synchronous
The outlet of motor 12, the bit drive cylinder rod end chamber liquid feed valve, upper jaw drive cylinder and lower jaw drive
Dynamic oil cylinder parallel connection oil circuit, syncmotor 12 and bit drive cylinder plunger shaft tapping valve 9 are sequentially communicated to form loop.
The two control cylinder parallel connections of upper jaw drive cylinder and lower jaw drive cylinder, bit drive cylinder plunger shaft
The outlet of liquid feed valve 8 connects the import of syncmotor 12, and the synchronized motor 12 of oil sources is averagely allocated to four oil cylinder piston chambers, with guarantee
Jaw 1 and the synchronous clamping of lower jaw 2.
Embodiment 2：
On the basis of embodiment 1, a kind of heavy aluminium stretching-machine bit synchronous clamping device, institute are present embodiments provided
Stating hydraulic system also includes upper jaw drive cylinder piston rod cylinder sequence valve, on the oil circuit of upper jaw drive cylinder after with
The oil circuit of lower jaw drive cylinder is in parallel.Upper jaw drive cylinder piston rod cylinder sequence valve is used for the deadweight for balancing upper jaw 1.
It is all provided between the piston cylinder of the jaw drive cylinder and the piston cylinder of lower jaw drive cylinder and syncmotor 12
Also connected after having the piston cylinder end parallel connection of both make-up valves 14, the upper jaw drive cylinder and lower jaw drive cylinder by pipeline
It is connected to overflow valve 18.
The upper jaw 1 and lower jaw 2 are tilting jaw, are 20-25 ° with horizontal direction angle.Jaw tilting
Installation, gravity, frictional force are different to the action effect of bit 2, cause jaw easily to occur asynchronous.As shown in figure 1, pincers
The guiding pattern of mouth is V-groove structure.
The clamping face of the upper jaw 1 and lower jaw 2 is the rectangle flank of tooth.The rectangle flank of tooth, there is anti-slip function.
In the present embodiment, the upper jaw drive cylinder is two, respectively the first upper jaw drive cylinder 3 and second
Upper jaw drive cylinder 4, be set up in parallel along the width of upper jaw 1, the lower jaw drive cylinder be two, respectively first
The lower jaw drive cylinder 6 of lower jaw drive cylinder 5 and second, is set up in parallel along the width of lower jaw 2.
As shown in figure 1, upper jaw drive cylinder piston rod cylinder sequence valve includes the first upper jaw drive cylinder piston rod cylinder
The upper jaw drive cylinder piston rod cylinder sequence valve 16 of sequence valve 15 and second, it is respectively arranged on the oil circuit of two upper jaw drive cylinders
On.The cylinder body and stretching head 7 of upper jaw drive cylinder are be hinged, and piston rod and upper jaw 1 are be hinged, the lower jaw drive cylinder
Cylinder body and stretching head 7 are be hinged, and piston rod and lower jaw 2 are be hinged.The stretcher jaw drive cylinder of different tonnages is of different sizes, shape
Into the clamping force of different tonnages.
As shown in Fig. 2 totally four control cylinders are in parallel even for two upper jaw drive cylinders and two lower jaw drive cylinders
Connect, when the aluminium that is stretched delivers to jaw, the first upper jaw drive cylinder piston rod cylinder sequence valve 15 and the driving of the second upper jaw
The pressure of cylinder piston rod cylinder sequence valve 16 is adjusted to desired value, to balance the deadweight of upper jaw 1.Bit drive cylinder is lived
Chamber liquid feed valve 8,11 powered opening of bit oil cylinder piston rod cavity tapping valve are filled in, hydraulic system oil sources is driven by bit
The plunger shaft of oil cylinder piston chamber liquid feed valve 8, the fuel feeding of syncmotor 12 to four control cylinders, rod end chamber pass through bit oil
The oil extraction of cylinder piston rod chamber tapping valve 11, jaw are clamped.
In the process, the first upper jaw drive cylinder piston rod cylinder sequence valve 15 and the second upper jaw drive cylinder piston
Bar cylinder sequence valve 16 balances the deadweight of upper jaw 1 and can increase certain back pressure, makes the piston cavity pressure of four control cylinders
Identical, syncmotor 12 makes four control cylinder flows identical, and, four control cylinders are same in pressure and flow under the same conditions
Step clamps, and realizes that jaw is synchronized with the movement.
In addition, syncmotor discharge control valve block 13 and the collective effect of syncmotor return oil pressure valve 17, in jaw oil cylinder
Four the asynchronous of clamping cylinder can be compensated during stroke end, improve net synchronization capability.Bit drive cylinder piston
The effect of the make-up valve 14 of chamber and the overflow valve 18 of the oil cylinder piston rod cavity of bit 2：After jaw clamps, stretching-machine starts to draw
Stretch, bit drive cylinder plunger shaft liquid feed valve 8, bit drive cylinder plunger shafts tapping valve 9, bit oil
Cylinder piston rod chamber liquid feed valve 10, bit oil cylinder piston rod cavity tapping valve 11 are turned off, and be stretched effect of the aluminium to jaw
Power is outside, and jaw oil cylinder is in passive clamped condition, and plunger shaft passes through the first upper jaw by the fluid infusion of make-up valve 14, rod end chamber
Drive cylinder piston rod cylinder sequence valve 15 and the second upper jaw drive cylinder piston rod cylinder sequence valve 16 and the discharge opeing of overflow valve 18.
Embodiment 3：
On the basis of previous embodiment, a kind of heavy aluminium stretching-machine bit synchronous clamping side is present embodiments provided
Method, when the aluminium that is stretched delivers to jaw, bit drive cylinder plunger shaft liquid feed valve 8 and bit drive cylinder piston
Rod cavity tapping valve is opened, and then the oil sources of hydraulic system passes through bit drive cylinder plunger shaft liquid feed valve 8, synchronized motor
12 are averagely allocated to the piston cylinder of the piston cylinder of upper jaw drive cylinder and lower jaw drive cylinder, meanwhile, upper jaw driving
The rod end chamber of oil cylinder and the rod end chamber of lower jaw drive cylinder are arranged by bit drive cylinder rod end chamber tapping valve
Oil, upper jaw 1 and lower jaw 2 are driven respectively, jaw is synchronously clamped.
When the aluminium that is stretched delivers to jaw, the upper jaw drive cylinder piston rod on upper jaw drive cylinder oil circuit
Cylinder sequence valve is opened, and is adjusted to pressure value by oil-feed equal with the deadweight of upper jaw 1.
After jaw clamps, stretching-machine starts to stretch, bit drive cylinder plunger shaft liquid feed valve 8, bit driving
Oil cylinder piston chamber tapping valve 9, bit oil cylinder piston rod cavity liquid feed valve 10, bit oil cylinder piston rod cavity tapping valve 11
It is turned off, now, the aluminium that is stretched is outside to the active force of jaw, and upper jaw drive cylinder and lower jaw drive cylinder are in quilt
Dynamic clamped condition, both plunger shafts are suitable by upper jaw drive cylinder piston rod cylinder by the fluid infusion of make-up valve 14, rod end chamber
Sequence valve and the discharge opeing of overflow valve 18.
Above example belongs to the common knowledge and known technology of the art without the part specifically described, herein
No longer describe in detail one by one.
It is exemplified as above be only to the present invention for example, do not form the limitation to protection scope of the present invention, it is all
It is to be belonged to the same or analogous design of the present invention within protection scope of the present invention.
Claims (9)
1. a kind of heavy aluminium stretching-machine bit synchronous clamping device, stretching-machine include stretching head（7）And located at stretching
Head（7）On jaw, jaw includes upper jaw（1）And lower jaw（2）, it is characterised in that：Including upper jaw drive cylinder, lower pincers
Mouth drive cylinder, syncmotor（12）And hydraulic system, the cylinder body and stretching head of the upper jaw drive cylinder（7）Connection, it is living
Stopper rod and upper jaw（1）Connection, the cylinder body and stretching head of the lower jaw drive cylinder（7）Connection, piston rod and lower jaw（2）
Connection；
Both the upper jaw drive cylinder and lower jaw drive cylinder oil circuits are in parallel, and the hydraulic system is driven including bit
Dynamic oil cylinder piston chamber liquid feed valve（8）, bit drive cylinder plunger shaft tapping valve（9）, bit drive cylinder piston rod
Chamber liquid feed valve and bit drive cylinder rod end chamber tapping valve, the bit drive cylinder plunger shaft liquid feed valve（8）、
Syncmotor（12）Outlet, upper jaw drive cylinder and lower jaw drive cylinder parallel connection oil circuit, bit drive cylinder piston
Rod cavity tapping valve is sequentially communicated to form loop, the piston cylinder of the upper jaw drive cylinder and the piston cylinder of lower jaw drive cylinder
And syncmotor（12）Outlet, the bit drive cylinder rod end chamber liquid feed valve, upper jaw drive cylinder
With lower jaw drive cylinder parallel connection oil circuit, syncmotor（12）With bit drive cylinder plunger shaft tapping valve（9）Connect successively
It is logical to form loop.
A kind of 2. heavy aluminium stretching-machine bit synchronous clamping device according to claim 1, it is characterised in that：Institute
Stating hydraulic system also includes upper jaw drive cylinder piston rod cylinder sequence valve, on the oil circuit of upper jaw drive cylinder after with
The oil circuit of lower jaw drive cylinder is in parallel.
A kind of 3. heavy aluminium stretching-machine bit synchronous clamping device according to claim 1, it is characterised in that：Institute
State the piston cylinder of jaw drive cylinder and the piston cylinder and syncmotor of lower jaw drive cylinder（12）Between be equipped with make-up valve
（14）, also it is connected with after the piston cylinder end parallel connection of both the upper jaw drive cylinder and lower jaw drive cylinder by pipeline excessive
Flow valve（18）.
A kind of 4. heavy aluminium stretching-machine bit synchronous clamping device according to claim 1, it is characterised in that：Institute
State upper jaw（1）And lower jaw（2）It is tilting jaw, is 20-25 ° with horizontal direction angle.
5. a kind of heavy aluminium stretching-machine bit synchronous clamping device according to claim any one of 1-4, it is special
Sign is：The upper jaw drive cylinder is two, respectively the first upper jaw drive cylinder（3）Oil is driven with the second upper jaw
Cylinder（4）, along upper jaw（1）Width is set up in parallel, and the lower jaw drive cylinder is two, and respectively the first lower jaw drives
Dynamic oil cylinder（5）With the second lower jaw drive cylinder（6）, along lower jaw（2）Width is set up in parallel.
6. a kind of heavy aluminium stretching-machine bit synchronous clamping device according to claim any one of 1-4, it is special
Sign is：The upper jaw（1）And lower jaw（2）Clamping face be the rectangle flank of tooth.
7. a kind of heavy aluminium stretching-machine bit synchronous clamping method, usage right requires one kind described in any one of 1-4
Heavy aluminium stretching-machine bit synchronous clamping device, it is characterised in that：When the aluminium that is stretched delivers to jaw, bit
Drive cylinder plunger shaft liquid feed valve（8）Opened with bit drive cylinder rod end chamber tapping valve, then the oil of hydraulic system
Source passes through bit drive cylinder plunger shaft liquid feed valve（8）, synchronized motor（12）It is averagely allocated to upper jaw drive cylinder
Piston cylinder and lower jaw drive cylinder piston cylinder, meanwhile, the driving of the rod end chamber and lower jaw of upper jaw drive cylinder
The rod end chamber of oil cylinder drives upper jaw respectively by bit drive cylinder rod end chamber tapping valve oil extraction（1）With lower pincers
Mouthful（2）, jaw is synchronously clamped.
A kind of 8. heavy aluminium stretching-machine bit synchronous clamping method according to claim 7, it is characterised in that：When
When the aluminium that is stretched delivers to jaw, the upper jaw drive cylinder piston rod cylinder sequence valve on upper jaw drive cylinder oil circuit is beaten
Open, pressure value is adjusted to and upper jaw by oil-feed（1）Deadweight it is equal.
A kind of 9. heavy aluminium stretching-machine bit synchronous clamping method according to claim 7, it is characterised in that：Pincers
After mouth clamps, stretching-machine starts to stretch, bit drive cylinder plunger shaft liquid feed valve（8）, bit drive cylinder piston
Chamber tapping valve（9）, bit oil cylinder piston rod cavity liquid feed valve（10）, bit oil cylinder piston rod cavity tapping valve（11）
Close, now, the aluminium that is stretched is outside to the active force of jaw, and upper jaw drive cylinder and lower jaw drive cylinder are in passive
Clamped condition, both plunger shafts pass through make-up valve（14）Fluid infusion, rod end chamber are suitable by upper jaw drive cylinder piston rod cylinder
Sequence valve and overflow valve（18）Discharge opeing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710864233.XA CN107477037B (en) | 2017-09-22 | 2017-09-22 | A kind of heavy type aluminium stretching-machine bit synchronous clamping device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710864233.XA CN107477037B (en) | 2017-09-22 | 2017-09-22 | A kind of heavy type aluminium stretching-machine bit synchronous clamping device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107477037A true CN107477037A (en) | 2017-12-15 |
| CN107477037B CN107477037B (en) | 2019-09-24 |
Family
ID=60587235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710864233.XA Active CN107477037B (en) | 2017-09-22 | 2017-09-22 | A kind of heavy type aluminium stretching-machine bit synchronous clamping device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107477037B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594239A (en) * | 2020-12-24 | 2021-04-02 | 天津市天锻压力机有限公司 | Hydraulic control system for jaw of skin stretching hydraulic machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5527570A (en) * | 1978-05-30 | 1980-02-27 | Bos Kalis Westminster | Hydraulic synchronous driving mechanism |
| CN101905242A (en) * | 2010-07-09 | 2010-12-08 | 太原重工股份有限公司 | Roller-lifting proportional and synchronous hydraulic control system |
| CN202673808U (en) * | 2012-07-05 | 2013-01-16 | 中冶赛迪工程技术股份有限公司 | Multi-cylinder diffluence motor synchronous compensation hydraulic system |
| CN103195764A (en) * | 2013-04-01 | 2013-07-10 | 中南大学 | Two-stage bi-directional high-precision hydraulic synchronous control system |
| CN205702168U (en) * | 2016-05-18 | 2016-11-23 | 吕文平 | The inclination clamped-in style clamp of super-huge aluminium section bar seven-roll Abramsen machine |
| CN206092552U (en) * | 2016-09-13 | 2017-04-12 | 福州大学 | Hydraulic circuit of loosing core in step |
-
2017
- 2017-09-22 CN CN201710864233.XA patent/CN107477037B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5527570A (en) * | 1978-05-30 | 1980-02-27 | Bos Kalis Westminster | Hydraulic synchronous driving mechanism |
| CN101905242A (en) * | 2010-07-09 | 2010-12-08 | 太原重工股份有限公司 | Roller-lifting proportional and synchronous hydraulic control system |
| CN202673808U (en) * | 2012-07-05 | 2013-01-16 | 中冶赛迪工程技术股份有限公司 | Multi-cylinder diffluence motor synchronous compensation hydraulic system |
| CN103195764A (en) * | 2013-04-01 | 2013-07-10 | 中南大学 | Two-stage bi-directional high-precision hydraulic synchronous control system |
| CN205702168U (en) * | 2016-05-18 | 2016-11-23 | 吕文平 | The inclination clamped-in style clamp of super-huge aluminium section bar seven-roll Abramsen machine |
| CN206092552U (en) * | 2016-09-13 | 2017-04-12 | 福州大学 | Hydraulic circuit of loosing core in step |
Non-Patent Citations (1)
| Title |
|---|
| 吴伟等: "拉伸矫直机夹紧装置及其液压系统的改进", 《山西冶金》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594239A (en) * | 2020-12-24 | 2021-04-02 | 天津市天锻压力机有限公司 | Hydraulic control system for jaw of skin stretching hydraulic machine |
| CN112594239B (en) * | 2020-12-24 | 2022-07-01 | 天津市天锻压力机有限公司 | Hydraulic control system for jaw of skin stretching hydraulic machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107477037B (en) | 2019-09-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107477037A (en) | A kind of heavy aluminium stretching-machine bit synchronous clamping device and method | |
| CN208008051U (en) | A kind of article carrying device | |
| CN103836026A (en) | Extending arm oil cylinder test device and hydraulic control system thereof | |
| CN202335203U (en) | Material taking mechanism for electronic component | |
| CN108436006A (en) | A kind of free-forging hydraulic of efficient driving | |
| CN207701490U (en) | A kind of electro-hydraulic numerical control Synchronous Bending machine hydraulic system of double servo-pump controls | |
| CN106769485A (en) | A kind of flexible material fatigue test hydraulic loading device | |
| CN206129739U (en) | Gas cylinder fatigue test hydraulic system | |
| CN104552841B (en) | Supplement positive displacement etc. is accommodating to change clamping apparatus | |
| CN105179365B (en) | Combined hydraulic cylinder with adjustable power output angle | |
| CN104500466B (en) | Tunneling synchronous mud injecting pump continuous grouting hydraulic control system | |
| CN106523460A (en) | Pressure-intensified type hydraulic cylinder with a plurality of driving cavities | |
| CN202543928U (en) | Oil replenishing device of pile clamping oil cylinder of hydraulic static pile driver | |
| CN206348229U (en) | A kind of flexible material fatigue test hydraulic loading device | |
| CN206072002U (en) | Multiaction power multi-speed oil cylinder | |
| CN206781108U (en) | The tensile testing machine frame of two-cylinder type synchronization of jacking up | |
| CN206520267U (en) | Slitter edge device is torn for infusion bag | |
| CN207393604U (en) | Prefabricated components production equipment and its fluid power system | |
| CN206801980U (en) | A kind of HTHP rheometer fluid pressure type axle pressure generating apparatus | |
| CN214274104U (en) | Automatic synchronous structure for displacement of multiple oil cylinders | |
| CN202622429U (en) | Oil pressure type compacting device | |
| CN207513994U (en) | One kind is used for injection head bidirectional loading | |
| CN206409457U (en) | With flow etc. point function hydraulic cylinder | |
| CN206555379U (en) | Synchronous deflecting driver | |
| CN210829925U (en) | Oil circuit system of oil cylinder of top-loading hydraulic press |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |