CN206201549U - A kind of passive four-corner leveling system based on servo hydraulic system - Google Patents
A kind of passive four-corner leveling system based on servo hydraulic system Download PDFInfo
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- CN206201549U CN206201549U CN201621029716.5U CN201621029716U CN206201549U CN 206201549 U CN206201549 U CN 206201549U CN 201621029716 U CN201621029716 U CN 201621029716U CN 206201549 U CN206201549 U CN 206201549U
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Abstract
The utility model discloses a kind of passive four-corner leveling system based on servo hydraulic system, servo-cylinder installs built-in magnetostrictive displacement sensor, first pressure sensor and safety overflow valve are each on the in-line and outlet line of servo-cylinder respectively to set one, the oil inlet of safety overflow valve, servo-cylinder and first pressure sensor are connected with the oil-out of servo valve, the oil inlet of check valve is connected with the oil return opening of servo valve, and the first high pressure bag type accumulator is connected with the oil inlet of servo valve.The oil inlet connection high pressure bag type accumulator of servo valve of the present utility model, can stablize the inlet pressure value of servo valve, timely be fed in the case of flow insufficient supply；Using constant pressure variable plunger pump, whole action is realized under different pressure ratings；Dynamic Closed Loop regulation is carried out to the corresponding servo valve of four servo-cylinders by control system in time, the performance of press is improve.
Description
Technical field
The utility model is related to a kind of four-corner leveling system, and in particular to a kind of passive type four based on servo hydraulic system
Angle leveling system.
Background technology
The leveling mode that current press industry is mainly used is active leveling, and both four small leveling cylinder workings were in position mould
Under formula, four angles of slider of oil press are withstood, as long as so that four oil cylinder operations are synchronous, it is possible to ensure that sliding block is level
, but this leveling mode cannot be played a role in press pressure process, because exerting oneself for master cylinder is much big
In exerting oneself for leveling cyclinder, so on the premise of no power closed loop, leveling cyclinder cannot be played a role.
The content of the invention
To solve the above problems, the purpose of this utility model is to provide a kind of passive four-corner based on servo hydraulic system
Leveling system, non-interfering servo-cylinder independent loop identical using four is watched by control system to four in time
Taking the corresponding servo valve of oil cylinder carries out Dynamic Closed Loop regulation, improves the performance of press, can suppress high-quality in high precision
Product.
To realize above-mentioned technical purpose, above-mentioned technique effect is reached, the utility model is achieved through the following technical solutions：
A kind of passive four-corner leveling system based on servo hydraulic system, including four groups of levelling gears, adjust described in every group
Flattening mechanism includes a servo-cylinder, a servo valve, two first pressure sensors, two safety overflow valves, a mangneto
Telescopic displacement sensor, a check valve and a first high pressure bag type accumulator；The servo-cylinder installs built-in institute
State magnetostrictive displacement sensor, the first pressure sensor and the safety overflow valve entering in the servo-cylinder respectively
It is each on oil pipe line and outlet line that one, the oil inlet of the safety overflow valve, the servo-cylinder and first pressure are set
Oil-out of the force snesor with the servo valve is connected, the oil return opening phase of the oil inlet of the check valve and the servo valve
Even, the first high pressure bag type accumulator is connected with the oil inlet of the servo valve.
Further, also including the second high pressure bag type accumulator and second pressure sensor, levelling gear described in four groups
The oil inlet of the servo valve the second high pressure bag type accumulator is connected by the second pressure sensor.
Further, also including constant pressure variable plunger pump, the oil inlet of the servo valve of levelling gear described in four groups connects
Connect the constant pressure variable plunger pump.
Further, levelling gear is connected with control system described in four groups.
The beneficial effects of the utility model are：
1st, the utility model is using the bicyclic algorithm in power position, when servo valve sets virtual shaft model, imaginary axis have position axis and
Power axle, algorithm is advanced, simple to operate；
2nd, the utility model uses four identical, non-interfering servo-cylinder independent loops, in time by control
System carries out Dynamic Closed Loop regulation to the corresponding servo valve of four servo-cylinders, by high-precision pressure sensor, magnetostriction
Displacement transducer can be accurately to four servo-cylinders pressure and position flutter catching, then feed back in control system, computing
Afterwards, closed loop regulation servo valve is dynamically carried out, the performance of press is improve, the work of some high-end customer higher levels can be met
Skill requirement；
3rd, the utility model uses constant pressure variable plunger pump, whole action is realized under different pressure ratings, it is necessary to
Motor will diminish, and reach the effect of energy-conservation；
4th, the oil inlet connection high pressure bag type accumulator of the utility model servo valve, can stablize the oil inlet of servo valve
Pressure value, is timely fed, i.e. filter pressure peak value in the case of flow insufficient supply, can suppress high-quality high-precision
The product of degree.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand skill of the present utility model
Art means, and being practiced according to the content of specification, with preferred embodiment of the present utility model and coordinate accompanying drawing detailed below
Describe in detail bright as after.Specific embodiment of the present utility model is shown in detail by following examples and its accompanying drawing.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the connection diagram of the second high pressure bag type accumulator and second pressure sensor.
Label declaration in figure：
1st, servo-cylinder, 2, servo valve, 3, first pressure sensor, 4, safety overflow valve, 5, magnetostrictive displacement sensing
Device, 6, check valve, the 7, first high pressure bag type accumulator, the 8, second high pressure bag type accumulator, 9, second pressure sensor.
Specific embodiment
Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
It is shown in Figure 1, a kind of passive four-corner leveling system based on servo hydraulic system, including four groups of leveling machines
Structure, levelling gear described in every group includes a servo-cylinder 1, a servo valve 2, two first pressure sensors 3, two safety
Overflow valve 4,5, check valve 6 of a magnetostrictive displacement sensor and a first high pressure bag type accumulator 7；It is described to watch
Take oil cylinder 1 and the built-in magnetostrictive displacement sensor 5, the first pressure sensor 3 and the safety overflow valve 4 are installed
Each setting one on the in-line and outlet line of the servo-cylinder 1 respectively, the oil inlet of the safety overflow valve 4,
The oil-out of the servo-cylinder 1 and the first pressure sensor 3 with the servo valve 2 is connected, and the check valve 6 enters
Hydraulic fluid port is connected with the oil return opening of the servo valve 2, the oil inlet of the first high pressure bag type accumulator 7 and the servo valve 2
It is connected.
Further, it is shown in Figure 2, also including the second high pressure bag type accumulator 8 and second pressure sensor 9, four
The oil inlet of the servo valve 2 of the group levelling gear connects the second high pressure skin by the second pressure sensor 9
Bladder type hydropneumatic accumulator 8.
Further, also including constant pressure variable plunger pump, the oil inlet of the servo valve 2 of levelling gear described in four groups connects
Connect the constant pressure variable plunger pump.
Further, levelling gear is connected with control system described in four groups.
The preferred embodiment of utility model is the foregoing is only, the utility model is not limited to, for ability
For the technical staff in domain, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle it
Interior, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.
Claims (4)
1. a kind of passive four-corner leveling system based on servo hydraulic system, it is characterised in that：Including four groups of levelling gears, often
The group levelling gear includes a servo-cylinder (1), a servo valve (2), two first pressure sensors (3), two peaces
Full overflow valve (4), magnetostrictive displacement sensor (5), a check valve (6) and a first high pressure bag type accumulator
(7)；The servo-cylinder (1) installs the built-in magnetostrictive displacement sensor (5), the first pressure sensor (3)
It is each on the in-line and outlet line of the servo-cylinder (1) respectively with the safety overflow valve (4) to set one, it is described
The oil inlet of safety overflow valve (4), the servo-cylinder (1) and the first pressure sensor (3) with the servo valve (2)
Oil-out be connected, the oil inlet of the check valve (6) is connected with the oil return opening of the servo valve (2), the first high pressure skin
Bladder type hydropneumatic accumulator (7) is connected with the oil inlet of the servo valve (2).
2. the passive four-corner leveling system based on servo hydraulic system according to claim 1, it is characterised in that：Also wrap
Include the second high pressure bag type accumulator (8) and second pressure sensor (9), the servo valve (2) of levelling gear described in four groups
Oil inlet the second high pressure bag type accumulator (8) is connected by the second pressure sensor (9).
3. the passive four-corner leveling system based on servo hydraulic system according to claim 2, it is characterised in that：Also wrap
Constant pressure variable plunger pump is included, the oil inlet of the servo valve (2) of levelling gear described in four groups connects the constant-pressure variable plunger
Pump.
4. the passive four-corner leveling system based on servo hydraulic system according to claim 3, it is characterised in that：Four groups
The levelling gear is connected with control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621029716.5U CN206201549U (en) | 2016-08-31 | 2016-08-31 | A kind of passive four-corner leveling system based on servo hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621029716.5U CN206201549U (en) | 2016-08-31 | 2016-08-31 | A kind of passive four-corner leveling system based on servo hydraulic system |
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| Publication Number | Publication Date |
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| CN206201549U true CN206201549U (en) | 2017-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621029716.5U Active CN206201549U (en) | 2016-08-31 | 2016-08-31 | A kind of passive four-corner leveling system based on servo hydraulic system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107813532A (en) * | 2017-09-12 | 2018-03-20 | 江苏理工学院 | A kind of large hydraulic press crossbeam levelling device |
| CN108829041A (en) * | 2018-07-13 | 2018-11-16 | 安徽工程大学 | A kind of numerically-controlled machine tool multi-axis controller of self-stabilization |
| CN109424594A (en) * | 2017-09-01 | 2019-03-05 | 无锡福艾德自动化科技有限公司 | A kind of Multi-cylinder control hydraulic system for wire stripper |
| CN109986828A (en) * | 2019-05-13 | 2019-07-09 | 福州大学 | A kind of composite material press four-corner leveling system for realizing gross tonnage control |
| CN113400710A (en) * | 2021-04-30 | 2021-09-17 | 天津市天锻压力机有限公司 | Four-axis servo hydraulic cushion special for high-precision die testing hydraulic machine |
-
2016
- 2016-08-31 CN CN201621029716.5U patent/CN206201549U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109424594A (en) * | 2017-09-01 | 2019-03-05 | 无锡福艾德自动化科技有限公司 | A kind of Multi-cylinder control hydraulic system for wire stripper |
| CN107813532A (en) * | 2017-09-12 | 2018-03-20 | 江苏理工学院 | A kind of large hydraulic press crossbeam levelling device |
| CN107813532B (en) * | 2017-09-12 | 2019-06-11 | 江苏理工学院 | A kind of large hydraulic press crossbeam levelling device |
| CN108829041A (en) * | 2018-07-13 | 2018-11-16 | 安徽工程大学 | A kind of numerically-controlled machine tool multi-axis controller of self-stabilization |
| CN109986828A (en) * | 2019-05-13 | 2019-07-09 | 福州大学 | A kind of composite material press four-corner leveling system for realizing gross tonnage control |
| CN109986828B (en) * | 2019-05-13 | 2021-03-30 | 福州大学 | Composite press four-corner leveling system for realizing total tonnage control |
| CN113400710A (en) * | 2021-04-30 | 2021-09-17 | 天津市天锻压力机有限公司 | Four-axis servo hydraulic cushion special for high-precision die testing hydraulic machine |
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