CN115178863A - Proportional servo hydraulic lifting workbench device of laser cutting machine - Google Patents
Proportional servo hydraulic lifting workbench device of laser cutting machine Download PDFInfo
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- CN115178863A CN115178863A CN202210818356.0A CN202210818356A CN115178863A CN 115178863 A CN115178863 A CN 115178863A CN 202210818356 A CN202210818356 A CN 202210818356A CN 115178863 A CN115178863 A CN 115178863A
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- laser cutting
- proportional servo
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- 238000003698 laser cutting Methods 0.000 title claims abstract description 35
- 238000012544 monitoring process Methods 0.000 claims abstract description 9
- 238000006073 displacement reaction Methods 0.000 claims description 29
- 230000003028 elevating effect Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 230000000295 complement effect Effects 0.000 claims description 3
- 238000010923 batch production Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 26
- 230000033001 locomotion Effects 0.000 description 8
- 230000001360 synchronised effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/083—Devices involving movement of the workpiece in at least one axial direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
Abstract
The invention discloses a proportional servo hydraulic lifting workbench device of a laser cutting machine, which comprises a workbench and a lifting base uniformly arranged on the outer side of the workbench, wherein the workbench comprises a main support frame and an auxiliary support frame, the lifting base comprises a lifting assembly, a guide assembly and a monitoring assembly, and further comprises a hydraulic station and a hydraulic servo proportional valve. According to the proportional servo hydraulic lifting workbench device of the laser cutting machine, the hydraulic proportional servo valves are used for controlling the oil cylinders to lift synchronously, and meanwhile, the closed-loop control is formed by matching with the position sensor, so that the real-time adjustment of the lifting speed is realized, the synchronization performance is ensured, the highest synchronization error of the lifting device can be controlled within 1mm, the influence of unbalance loading on the lifting synchronization of the workbench can be overcome through the device, the proportional servo hydraulic lifting workbench device is suitable for numerical control laser cutting machines with ultra-large breadth and ultra-high load, and the batch production of large-breadth and higher-load laser cutting machines is realized.
Description
Technical Field
The invention relates to the technical field of laser cutting machines, in particular to a proportional servo hydraulic lifting workbench device of a laser cutting machine.
Background
Along with the development of a laser cutting technology, the power of a laser is increased along with the rapid development of a laser cutting machine, the thickness of a cut plate is increased continuously from 3kW and 4kW in 2012 to 30kW and 40kW in 2022, and the thickness of the cut plate is increased continuously;
the invention relates to a hydraulic lifting workbench of a laser cutting machine, which comprises a chassis and a workbench arranged above the chassis, wherein the chassis and the workbench are both in a rectangular structure, a base extending outwards is respectively arranged at the positions, close to four corners, of the outer side of the chassis, a hydraulic lifting device capable of vertically moving up and down is arranged on the base, the top of the hydraulic lifting device is connected with the workbench, and four groups of hydraulic lifting devices arranged on the chassis are connected with an external synchronous hydraulic station to realize oil circuit pressure balance and drive the workbench to vertically move up and down. This kind of laser cutting machine hydraulic pressure elevating platform passes through hydraulic cylinder as drive mode, goes up and down exchange speed piece, and the interchange time is short, and the stable performance, and it can bear the great large tracts of land thick steel plate of weight, satisfies powerful laser cutting machine and uses, and simple structure, easy installation and dismantlement, and the later maintenance is fairly simple, and use cost reduces, and production efficiency improves.
However, the hydraulic lifting workbench for the existing laser cutting machine cannot monitor the displacement information of each hydraulic oil cylinder in the hydraulic lifting device, and the workbench is prone to tilting, so that the workbench is subjected to unbalance loading due to the load of the plate, the efficiency of cutting the plate is reduced, and the hydraulic lifting workbench has the characteristic of inconvenience in operation.
Disclosure of Invention
The invention aims to provide a proportional servo hydraulic lifting workbench device of a laser cutting machine, and aims to solve the problems that the conventional hydraulic lifting workbench for the laser cutting machine cannot monitor the displacement information of each hydraulic oil cylinder in the hydraulic lifting device, and the workbench is easy to incline, so that the workbench is unbalanced loaded due to the load of a plate, the efficiency of cutting the plate is reduced, and the hydraulic lifting workbench device has the characteristic of inconvenient operation.
In order to realize the purpose, the invention is realized by the following technical scheme: the utility model provides a servo hydraulic pressure elevating platform device of laser cutting machine proportion, is in including workstation, even setting the lift base in the workstation outside, the workstation is adjacent including main tributary strut and the even setting that are parallel to each other main tributary strut between, main tributary strut and auxiliary stay frame rigid connection, the lift base is including being used for carrying out the lifting unit who goes up and down to the workstation, being used for carrying out the direction subassembly that leads to the lift in-process of workstation and being used for carrying out the monitoring subassembly that acquires to the displacement information when lifting unit goes up and down, still including being used for providing the hydraulic pressure station and the setting of power to lifting unit be in hydraulic pressure station with every lifting unit electric connection's hydraulic pressure servo proportional valve.
As a preferred aspect of the present invention, each of the lifting assemblies includes a connecting plate disposed perpendicular to a side surface of the main support frame, a support base disposed perpendicular to a lower end surface of the connecting plate, and an oil cylinder connected to one side of the support base, the connecting plate is fixedly connected to an outer side of the main support frame, a telescopic shaft of the oil cylinder is fixedly connected to an upper end surface of an outer side of the connecting plate, and a lower end surface of the oil cylinder is fixedly connected to the support base.
Through adopting above-mentioned technical scheme, support the base and be convenient for support the lower terminal surface of hydro-cylinder for the telescopic shaft drives the reciprocating motion that goes up and down to the connecting plate, and then is convenient for drive the reciprocating motion that the workstation goes up and down.
As a preferred aspect of the present invention, the guide assembly includes a guide rod fixedly connected to the other side of the support base, and a guide slider disposed on the lower end surface of the outer side of the connecting plate and connected to the guide rod, the guide slider is fixedly connected to the connecting plate, and a guide hole adapted to the guide rod is disposed on the guide slider, and the guide slider and the guide rod are complementary to each other.
Through adopting above-mentioned technical scheme, be convenient for lead to the direction of rise of connecting plate to effectual telescopic shaft of having avoided the hydro-cylinder takes place the skew of position when driving the connecting plate and carry out elevating movement.
As a preferable aspect of the present invention, the monitoring assembly includes a displacement sensor disposed at a middle position of the supporting base, a lower end surface of the displacement sensor is fixedly connected to a lower end surface of the supporting base, and a lowest end of the displacement sensor and a lower end surface of the connecting plate are disposed on a same horizontal plane.
By adopting the technical scheme, the displacement sensor can convert the lifting motion of the telescopic shaft of the oil cylinder of the connecting plate into measurable electrical quantity, and then the electrical quantity is separated and sent to the sensor system for evaluation or marking.
As a preferable aspect of the present invention, a power supply lead is arranged between each hydraulic proportional servo valve and each oil cylinder, and the power supply lead is connected with the lower end surface of the workbench through a pipeline trunking.
By adopting the technical scheme, the displacement sensors provide position information of each group of oil cylinders in real time, then the position information is automatically calculated through a built-in system program, and the lifting speed of each oil cylinder is adjusted in real time through the hydraulic servo proportional valve, so that the platform is ensured to realize high-precision synchronous lifting.
As a preferred aspect of the present invention, the signal output terminal of the displacement sensor is electrically connected to the signal input terminal of the controller a of the hydraulic proportional servo valve, the hydraulic proportional servo valve is electrically connected to the signal input terminal of the controller b of the hydraulic station, the signal output terminal of the controller b of the hydraulic station is electrically connected to a terminal controller, and the terminal controller is configured as a PLC controller.
By adopting the technical scheme, the hydraulic station provides power, and the cylinders can lift simultaneously, so that the lifting action of the whole workbench is realized, and the whole control system is integrated in the terminal server.
The system further comprises an out-of-tolerance alarm module arranged in the terminal server, wherein the out-of-tolerance alarm module is used for monitoring a lifting synchronization error range value, and an alarm value delta X of the out-of-tolerance alarm module is set to be 0.5mm-1mm.
By adopting the technical scheme, when the synchronization error exceeds the set alarm value, the system can automatically stop the action, so that mechanical damage caused by too large asynchronism is prevented.
Compared with the prior art, the invention has the beneficial effects that: the hydraulic proportional servo valve of the proportional servo hydraulic lifting workbench device of the laser cutting machine has the characteristics of reasonable design and simplicity in operation, can control all oil cylinders to lift synchronously, is matched with a position sensor to form closed-loop control, realizes real-time regulation of lifting speed, ensures the synchronization performance, can control the highest synchronization error of the lifting device within 1mm, can overcome the influence of unbalanced load on the lifting synchronization of the workbench, is suitable for numerical control laser cutting machines with ultra-large breadth and ultrahigh load, and realizes the batch production of laser cutting machines with large breadth and higher load.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
FIG. 1 is a schematic structural diagram of the overall structure of a proportional servo hydraulic lifting workbench device of a laser cutting machine in use;
FIG. 2 is a schematic structural diagram of a workbench in the proportional servo hydraulic lifting workbench device of the laser cutting machine of the invention;
FIG. 3 is a schematic structural diagram of a lifting base of the proportional servo hydraulic lifting workbench device of the laser cutting machine of the invention;
fig. 4 is a schematic diagram of the program control logic of the proportional servo hydraulic elevating table device of the laser cutting machine according to the present invention.
In the figure: the hydraulic lifting device comprises a main supporting frame 1, an auxiliary supporting frame 2, a lifting base 3, a hydraulic station 4, a servo proportional valve 5, a pipeline trunking 6, an adjustable base anchor 7, a connecting plate 8, a guide rod 9, a guide sliding block 10, a supporting base 11, an oil cylinder 12 and a displacement sensor 13.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without inventive efforts based on the embodiments of the present invention, are within the scope of protection of the present invention. Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1, fig. 2 and fig. 3, the present invention provides a technical solution: a proportional servo hydraulic lifting workbench device of a laser cutting machine comprises a workbench and lifting bases 3 uniformly arranged on the outer side of the workbench, wherein the workbench comprises main support frames 1 which are arranged in parallel and auxiliary support frames 2 which are uniformly arranged between the adjacent main support frames 1, the main support frames 1 are rigidly connected with the auxiliary support frames 2, the lifting bases 3 comprise lifting components for lifting the workbench, guide components for guiding the lifting process of the workbench and monitoring components for acquiring displacement information when the lifting components lift, a hydraulic station 4 for providing power for the lifting components and hydraulic servo proportional valves 5 which are arranged on the hydraulic station 4 and electrically connected with each lifting component, in the invention, the hydraulic stations 12 synchronously lift are controlled by the hydraulic proportional servo valves, closed-loop control is formed by matching with position sensors, the lifting speed is adjusted in real time, the synchronization performance is ensured, the highest synchronization error of the lifting devices can be controlled within 1mm, the influence of unbalanced load on the lifting synchronization of the workbench can be overcome by the device, the device is suitable for the laser cutting machine with ultrahigh breadth and the numerical control of the laser cutting machine with higher breadth in batch production.
Referring to fig. 1, 2 and 3, each of the lifting assemblies includes a connecting plate 8 perpendicular to a side surface of the main support frame 1, a support base 11 perpendicular to a lower end surface of the connecting plate 8, and an oil cylinder 12 connected to one side of the support base 11, the connecting plate 8 is fixedly connected to an outer side of the main support frame 1, a telescopic shaft of the oil cylinder 12 is fixedly connected to an upper end surface of the outer side of the connecting plate 8, a lower end surface of the oil cylinder 12 is fixedly connected to the support base 11, and the support base 11 is convenient for supporting the lower end surface of the oil cylinder 12, so that the telescopic shaft drives the connecting plate 8 to perform a lifting reciprocating motion, and further drives the workbench to perform a lifting reciprocating motion.
Referring to fig. 1, 2 and 3, the guiding assembly includes a guiding rod 9 fixedly connected to the other side of the supporting base 11 and a guiding slider 10 disposed on the lower end surface of the outer side of the connecting plate 8 and connected to the guiding rod 9, the guiding slider 10 is fixedly connected to the connecting plate 8, and a guiding hole matched to the guiding rod 9 is disposed on the guiding slider 10, the guiding slider 10 and the guiding rod 9 complement each other to guide the lifting direction of the connecting plate 8, so as to effectively avoid the position deviation when the telescopic shaft of the oil cylinder 12 drives the connecting plate 8 to perform lifting movement, and in addition, the telescopic shaft of the oil cylinder 12 and the guiding slider 10 are diagonally disposed, so as to perform left and right deviation correction on the connecting plate 8, and further effectively ensure the stability of each lifting base 3 during lifting.
Referring to fig. 1, 2 and 3, the monitoring assembly includes a displacement sensor 13 disposed at a middle position of the supporting base 11, a lower end surface of the displacement sensor 13 is fixedly connected to a lower end surface of the supporting base 11, a lowest end of the displacement sensor 13 and a lower end surface of the connecting plate 8 are disposed at a same horizontal plane, so that the displacement sensor 13 converts the lifting motion of the connecting plate 8 due to the telescopic shaft of the cylinder 12 into a measurable electrical quantity, and then separates the electrical quantity to be sent to the sensor system for evaluation or marking.
Referring to fig. 1, 2 and 3, a power lead is arranged between each hydraulic proportional servo valve and each oil cylinder 12, the power lead is connected with the lower end face of the workbench through a pipeline trunking 6, a displacement sensor 13 provides position information of each group of oil cylinders 12 in real time, then automatic calculation is performed through a built-in system program, the lifting speed of each oil cylinder 12 is adjusted in real time through the hydraulic proportional servo valve 5, and high-precision synchronous lifting of the platform is ensured.
Referring to fig. 4, a signal output end of a displacement sensor 13 is electrically connected with a signal input end of a controller a of a hydraulic proportional servo valve, the hydraulic proportional servo valve is electrically connected with a signal input end of a controller b of a hydraulic station 4, a signal output end of the controller b of the hydraulic station 4 is electrically connected to a terminal controller, the terminal controller is set to be a PLC controller, the hydraulic station 4 provides power to realize simultaneous lifting of each path of oil cylinder 12, thereby realizing lifting action of the whole workbench, the whole control system is integrated in a terminal server, when in an initial position, it is firstly ensured that the displacement sensor 13 of each path returns to zero, in the lifting process of the oil cylinder 12, the displacement data of the oil cylinder 12 is fed back by returning to zero through the displacement sensor 13 of each path, automatic calculation is performed through a built-in program, the lifting speed of each path of the oil cylinder 12 is actively adjusted in time through the hydraulic proportional servo valve 5, the lifting synchronization error is ensured to be within a set range, and even under the condition of severe unbalance loading, the highest lifting synchronization error range can be controlled within 1mm through closed-loop control.
Referring to fig. 1, 2 and 3, an adjustable footing plate 7 is disposed on a lower end surface of the supporting base 11, the adjustable footing plate 7 is connected to the supporting base 11 through an adjusting bolt, and each lifting base 3 is adjusted to be horizontal through the adjustable footing plate 7.
Referring to fig. 4, the system further comprises an out-of-tolerance alarm module arranged in the terminal server, wherein the out-of-tolerance alarm module is used for monitoring a lifting synchronization error range value, an alarm value delta X of the out-of-tolerance alarm module is set to be 0.5mm-1mm, and when a synchronization error exceeds a set alarm value, the system automatically stops acting to prevent mechanical damage caused by excessive asynchronization.
The working principle is as follows: when the system is used, at the initial position, firstly, the displacement sensor 13 of each path is enabled to return to zero, in the lifting process of the oil cylinder 12, the displacement data of the oil cylinder 12 is fed back through the return to zero of the displacement sensor 13 of each path, automatic calculation is carried out through a built-in program, the lifting speed of the oil cylinder 12 of each path is actively adjusted in time through the hydraulic servo proportional valve 5, the lifting synchronous error is ensured to be within a set range, even under the condition of serious unbalance loading, the lifting synchronous error range can be controlled to be within 1mm at the highest through closed-loop control, and when the synchronous error exceeds the alarm value delta X set by the out-of-tolerance alarm module, the system can automatically stop acting, and mechanical damage caused by overlarge asynchronization is prevented.
The device obtained through the design can basically meet the requirement of improving the hydraulic lifting workbench for the existing laser cutting machine, cannot monitor the displacement information of each hydraulic oil cylinder in the hydraulic lifting device, is easy to cause the workbench to incline, so that the workbench is unbalanced in load due to the load of the plate, the efficiency of cutting the plate is reduced, and the device has the problem of inconvenient operation.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a servo hydraulic pressure elevating platform device of laser cutting machine proportion which characterized in that: comprises a workbench and lifting bases (3) which are uniformly arranged on the outer side of the workbench;
the workbench comprises main support frames (1) which are arranged in parallel and auxiliary support frames (2) which are uniformly arranged between the adjacent main support frames (1), and the main support frames (1) and the auxiliary support frames (2) are rigidly connected;
the lifting base (3) comprises a lifting component for lifting the workbench, a guide component for guiding the lifting process of the workbench and a monitoring component for acquiring displacement information when the lifting component is lifted;
the hydraulic lifting device is characterized by further comprising a hydraulic station (4) for providing power for the lifting assemblies and hydraulic servo proportional valves (5) arranged on the hydraulic station (4) and electrically connected with each lifting assembly.
2. The proportional servo hydraulic lifting workbench device of a laser cutting machine as claimed in claim 1, wherein each lifting assembly comprises a connecting plate (8) perpendicular to the side surface of the main support frame (1), a support base (11) perpendicular to the lower end surface of the connecting plate (8), and an oil cylinder (12) connected to one side of the support base (11), wherein the connecting plate (8) is fixedly connected to the outer side of the main support frame (1), the telescopic shaft of the oil cylinder (12) is fixedly connected to the upper end surface of the outer side of the connecting plate (8), and the lower end surface of the oil cylinder (12) is fixedly connected to the support base (11).
3. The proportional servo hydraulic lifting workbench device for the laser cutting machine as claimed in claim 2, wherein the guiding assembly comprises a guiding rod (9) fixedly connected with the other side of the supporting base (11) and a guiding slider (10) arranged on the lower end face of the outer side of the connecting plate (8) and connected with the guiding rod (9) in a matching manner, the guiding slider (10) is fixedly connected with the connecting plate (8), a guiding hole matched with the guiding rod (9) is arranged on the guiding slider (10), and the guiding slider (10) and the guiding rod (9) have complementary functions.
4. The proportional servo hydraulic lifting workbench device for the laser cutting machine as claimed in claim 3, wherein the monitoring assembly comprises a displacement sensor (13) disposed at the middle position of the supporting base (11), the lower end face of the displacement sensor (13) is fixedly connected with the lower end face of the supporting base (11), and the lowest end of the displacement sensor (13) and the lower end face of the connecting plate (8) are disposed at the same horizontal plane.
5. The proportional servo hydraulic lifting workbench device of a laser cutting machine as claimed in claim 4, wherein a power supply lead is arranged between each hydraulic proportional servo valve and each oil cylinder (12), and the power supply lead is connected with the lower end surface of the workbench through a pipeline trunking (6).
6. The proportional servo hydraulic lifting table device of claim 5, wherein the signal output end of the displacement sensor (13) is electrically connected with the signal input end of the controller a of the hydraulic proportional servo valve, the hydraulic proportional servo valve is electrically connected with the signal input end of the controller b of the hydraulic station (4), the signal output end of the controller b of the hydraulic station (4) is electrically connected with a terminal controller, and the terminal controller is configured as a PLC controller.
7. The proportional servo hydraulic lifting workbench device of a laser cutting machine as claimed in claim 6, characterized in that the lower end surface of the support base (11) is provided with an adjustable base foot plate (7), and the adjustable base foot plate (7) is connected with the support base (11) through an adjusting bolt.
8. The proportional servo hydraulic lifting workbench device of a laser cutting machine as claimed in claim 7, further comprising an out-of-tolerance alarm module disposed in the terminal server, wherein the out-of-tolerance alarm module is configured to monitor a lifting synchronization error range value, and an alarm value Δ X of the out-of-tolerance alarm module is set to 0.5mm-1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210818356.0A CN115178863A (en) | 2022-07-12 | 2022-07-12 | Proportional servo hydraulic lifting workbench device of laser cutting machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210818356.0A CN115178863A (en) | 2022-07-12 | 2022-07-12 | Proportional servo hydraulic lifting workbench device of laser cutting machine |
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| CN115178863A true CN115178863A (en) | 2022-10-14 |
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| CN202210818356.0A Pending CN115178863A (en) | 2022-07-12 | 2022-07-12 | Proportional servo hydraulic lifting workbench device of laser cutting machine |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205838458U (en) * | 2016-08-03 | 2016-12-28 | 上海其胜设备配件有限公司 | Multi-stage oil cylinder synchronous control system |
| CN106438520A (en) * | 2016-12-17 | 2017-02-22 | 中国重型机械研究院股份公司 | Cooling bed lifting hydraulic synchronous control device |
| WO2021073215A1 (en) * | 2019-10-14 | 2021-04-22 | 广东精铟海洋工程股份有限公司 | Ocean platform oil cylinder lifting control method and system |
| CN214815864U (en) * | 2020-12-31 | 2021-11-23 | 江苏亚威机床股份有限公司 | Anti-unbalance-load lifting device for high-power laser cutting machine |
-
2022
- 2022-07-12 CN CN202210818356.0A patent/CN115178863A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205838458U (en) * | 2016-08-03 | 2016-12-28 | 上海其胜设备配件有限公司 | Multi-stage oil cylinder synchronous control system |
| CN106438520A (en) * | 2016-12-17 | 2017-02-22 | 中国重型机械研究院股份公司 | Cooling bed lifting hydraulic synchronous control device |
| WO2021073215A1 (en) * | 2019-10-14 | 2021-04-22 | 广东精铟海洋工程股份有限公司 | Ocean platform oil cylinder lifting control method and system |
| CN214815864U (en) * | 2020-12-31 | 2021-11-23 | 江苏亚威机床股份有限公司 | Anti-unbalance-load lifting device for high-power laser cutting machine |
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