CN110792655A - Hydraulic positioning device and control method thereof - Google Patents
Hydraulic positioning device and control method thereof Download PDFInfo
- Publication number
- CN110792655A CN110792655A CN201911178658.0A CN201911178658A CN110792655A CN 110792655 A CN110792655 A CN 110792655A CN 201911178658 A CN201911178658 A CN 201911178658A CN 110792655 A CN110792655 A CN 110792655A
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- Prior art keywords
- hydraulic
- controller
- oil
- hydraulic cylinder
- telescopic rod
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000003921 oil Substances 0.000 claims abstract description 47
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims description 4
- 230000003139 buffering effect Effects 0.000 claims 2
- 238000013016 damping Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000000641 cold extrusion Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
- F15B21/087—Control strategy, e.g. with block diagram
-
- 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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Actuator (AREA)
Abstract
The invention discloses a hydraulic positioning device and a control method thereof, wherein the device comprises a hydraulic telescopic device and a controller, wherein the hydraulic telescopic device comprises a hydraulic telescopic device which comprises an anti-collision protection pad, a hydraulic cylinder, a buffer device and a hydraulic oil tank; the hydraulic cylinder comprises a hydraulic telescopic rod, an oil inlet port and an oil outlet port, the hydraulic telescopic rod is installed in the hydraulic cylinder, the anti-collision protection pad is installed on the hydraulic telescopic rod, the buffer device penetrates through the hydraulic telescopic rod and is installed on the hydraulic cylinder, and the distance measuring sensor is installed in the buffer device. The controller of the device can control the extension of the hydraulic cylinder for the electric one-way valve and the oil pump motor; the electric proportional valve controls the retraction of the hydraulic cylinder. The distance measuring sensor detects the distance of the telescopic rod. And carrying out automatic control according to the working requirement.
Description
Technical Field
The invention belongs to the technical field of electricity, and relates to a hydraulic positioning device and a control method thereof.
Background
Hydraulic pressure is commonly used in the pressing process of plastic materials, such as stretching, bending, flanging, blanking, etc., and can also be used in the processes of calibration, press fitting, grinding wheel forming, cold extrusion of metal parts, and press forming of plastic and powder products. With the development of society and the improvement of productivity, the advantages of hydraulic devices are more and more obvious and are more and more favored by people, so that hydraulic products are more and more widely applied to modern industry. The hydraulic positioning technology is mainly characterized in that a hydraulic valve is controlled by a technician according to work experience to meet the requirement of hydraulic positioning; not only is the time consumed, but also the positioning can not meet the required precision requirement.
Disclosure of Invention
In order to solve the problems, the invention provides a positioning device for hydraulic pressure and a control method thereof, wherein a controller of the device can control the extension of a hydraulic cylinder for an electric one-way valve and an oil pump motor; the electric proportional valve controls the retraction of the hydraulic cylinder. The distance measuring sensor detects the distance of the telescopic rod. And carrying out automatic control according to the working requirement.
The invention particularly relates to a hydraulic positioning device, which comprises a hydraulic telescopic device and a controller, wherein the hydraulic telescopic device comprises a hydraulic telescopic device, a hydraulic cylinder, a buffer device and a hydraulic oil tank; the hydraulic cylinder comprises a hydraulic telescopic rod, an oil inlet port and an oil outlet port, the hydraulic telescopic rod is installed in the hydraulic cylinder, the anti-collision protection pad is installed on the hydraulic telescopic rod, the buffer device penetrates through the hydraulic telescopic rod and is installed on the hydraulic cylinder, and the distance measuring sensor is installed in the buffer device.
The controller further comprises a controller touch screen and a controller terminal, the controller terminal comprises an alternating current power supply 220V port, a digital output port, an analog input port and an analog output port, and the controller is connected to the alternating current power supply 220V.
Further buffer adopts the rubber materials preparation, can make the device play the effect of buffer protection to the pneumatic cylinder at the in-process that stretches out and draws back, range sensor has been installed to the buffer, and range sensor meets with the analog input electrical property of controller wiring end, can detect the distance between buffer and the collision protection pad, passes through the connecting wire with the analog signal who detects and transmits the controller in, converts analog signal into the parameter value through software programming and shows in the touch-sensitive screen.
Further, an oil inlet port of the hydraulic cylinder is connected with the bottom end of the hydraulic oil tank through a pipeline, a one-way electric valve and an oil pump motor are mounted on the pipeline, the one-way electric valve comprises a valve core and a coil, the valve core is mounted at the oil inlet port of the hydraulic cylinder, the coil is electrically connected with a digital quantity output port of a controller wiring end through a connecting wire, the oil pump motor comprises a motor and an impeller, the motor is a single-phase motor with an operating power supply of 220V, the motor is electrically connected with an AC power supply 220V port of the controller through a connecting wire, and the impeller is mounted in the pipeline.
Further, the oil outlet port is also connected with the top end through a hydraulic oil tank through a pipeline, and an electric proportional valve is mounted on the pipeline.
The invention also comprises a control method for a hydraulic positioning device, comprising the following steps:
step 1: the telescopic distance of the hydraulic telescopic rod is set on the controller touch screen;
step 2: setting the minimum opening degree of the electric proportional valve on a touch screen of the controller, and simultaneously setting a P value and an I value of the electric proportional valve according to control requirements;
and step 3: opening a one-way electric valve in a touch screen of the controller;
and 4, step 4: starting an oil pump motor in a touch screen of the controller, and allowing oil in the hydraulic oil tank to flow into a hydraulic cylinder through a one-way electric valve under the driving of the oil pump motor;
and 5: when the distance detected by the distance measuring sensor reaches the distance of the hydraulic telescopic rod arranged on the touch screen of the controller, the oil pump motor stops running, the one-way electric valve is closed, and the minimum opening degree of the electric proportional valve is 0;
step 6: when the hydraulic telescopic device needs to retract, the opening degree of the electric proportional valve is increased on the touch screen of the controller, the one-way electric valve is opened, the oil pump motor is operated, the oil pump motor circulates, and oil in the hydraulic cylinder flows into the hydraulic oil tank due to the increase of the opening degree of the electric proportional valve.
Drawings
FIG. 1 is a schematic diagram of an overall structure of a positioning device for hydraulic pressure according to the present invention;
fig. 2 is a signal control schematic diagram of a positioning device for hydraulic pressure.
In the figure: 1. a hydraulic telescopic device; 2. a controller touch screen; 3. a controller terminal; 4. an anti-collision protection pad; 5. a hydraulic telescopic rod; 6. a buffer device; 7. a hydraulic cylinder; 8. an electrically operated proportional valve; 9. a pipeline; 10. a hydraulic oil tank; 11. a ranging sensor; 12. a one-way electric valve; 13. an oil pump motor.
Detailed Description
The following describes in detail a specific embodiment of a positioning device for hydraulic pressure and a control method thereof according to the present invention with reference to the accompanying drawings.
As shown in fig. 1-2, the present invention is specifically a positioning device for hydraulic pressure, the device includes a hydraulic telescopic device 1 and a controller, the hydraulic telescopic device 1 includes a hydraulic telescopic device 1 including an anti-collision protection pad 4, a hydraulic cylinder 7, a buffer device 6 and a hydraulic oil tank 10; the hydraulic cylinder 7 comprises a hydraulic telescopic rod 5, an oil inlet port and an oil outlet port, the hydraulic telescopic rod 5 is installed in the hydraulic cylinder 7, the anti-collision protection pad 4 is installed on the hydraulic telescopic rod 5, the buffer device 6 penetrates through the hydraulic telescopic rod 5 to be installed on the hydraulic cylinder 7, and the distance measuring sensor 11 is installed in the buffer device 6.
The controller comprises a controller touch screen 2 and a controller terminal 3, the controller terminal 3 comprises an alternating current power supply 220V port, a digital quantity output port, an analog quantity input port and an analog quantity output port, and the controller is connected to the alternating current power supply 220V.
Wherein buffer 6 adopts the rubber materials preparation, can make the device play the effect of buffer protection to pneumatic cylinder 7 at the in-process that stretches out and draws back, range sensor 11 has been installed in buffer 6, and range sensor 11 meets with the analog quantity input electrical property of controller wiring end 3, can detect the distance between buffer 6 and the collision protection pad, passes through the connecting wire with the analog signal who detects and transmits the controller in, converts analog signal into the parameter value through software programming and shows in the touch-sensitive screen.
Wherein the oil inlet port of pneumatic cylinder 7 passes through pipeline 9 and links to each other with hydraulic tank 10's bottom to installed one-way motorised valve 12 and oil pump motor 13 on pipeline 9, one-way motorised valve 12 includes case and coil, the case is installed in the oil inlet port department of pneumatic cylinder 7, the coil passes through the digital output port electrical property of connecting wire and controller wiring end 3 and meets, oil pump motor 13 includes motor and impeller, the motor is 220V's single phase motor for the running power supply, meets with the alternating current power supply 220V port electrical property of controller through the connecting wire, the impeller is installed in pipeline 9.
The oil outlet port is connected with the top end through a pipeline 9 and a hydraulic oil tank 10, and an electric proportional valve 8 is installed on the pipeline 9, and the electric proportional valve 8 is installed on the pipeline 9.
The invention also comprises a control method for a hydraulic positioning device, comprising the following steps:
step 1: the controller touch screen 2 is provided with a telescopic distance of the hydraulic telescopic rod 5;
step 2: the minimum opening degree of the electric proportional valve 8 is set on the controller touch screen 2, and meanwhile, the P value and the I value of the electric proportional valve are set according to the control requirement;
and step 3: opening a one-way electric valve 12 in a touch screen 2 of the controller;
and 4, step 4: an oil pump motor 13 is started in a touch screen 2 of the controller, and oil in a hydraulic oil tank 10 flows into a hydraulic cylinder through a one-way electric valve 12 under the driving of the oil pump motor 13;
and 5: when the distance detected by the distance measuring sensor 11 reaches the distance of the hydraulic telescopic rod 5 arranged on the touch screen 2 of the controller, the oil pump motor 13 stops running, the one-way electric valve 12 is closed, and the minimum opening degree of the electric proportional valve is 0;
step 6: when the hydraulic telescopic device 1 needs to retract, the opening degree of the electric proportional valve 8 is increased on the controller touch screen 2, the one-way electric valve 8 and the oil pump motor 13 are opened, the oil pump motor 13 circulates, and oil in the hydraulic cylinder 7 flows into the hydraulic oil tank 10 due to the increase of the opening degree of the electric proportional valve 8.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. The hydraulic positioning device is characterized by comprising a hydraulic telescopic device and a controller, wherein the hydraulic telescopic device comprises a hydraulic telescopic device which comprises an anti-collision protection pad, a hydraulic cylinder, a buffer device and a hydraulic oil tank; the hydraulic cylinder comprises a hydraulic telescopic rod, an oil inlet port and an oil outlet port, the hydraulic telescopic rod is installed in the hydraulic cylinder, the anti-collision protection pad is installed on the hydraulic telescopic rod, the buffer device penetrates through the hydraulic telescopic rod and is installed on the hydraulic cylinder, and the distance measuring sensor is installed in the buffer device.
2. The hydraulic positioning device as claimed in claim 1, wherein the controller comprises a controller touch screen and controller terminals, the controller terminals comprise an alternating current power supply 220V port, a digital output port, an analog input port and an analog output port, and the controller is connected to the alternating current power supply 220V.
3. The hydraulic positioning apparatus of claim 1, wherein the damping device is made of a rubber material.
4. The hydraulic positioning device as claimed in claim 1, wherein a distance measuring sensor is installed in the buffering device, the distance measuring sensor is electrically connected with an analog input end of a controller terminal, the distance measuring sensor can detect the distance between the buffering device and the collision protection pad, detected analog signals are transmitted to the controller through a connecting line, and the analog signals are converted into parameter values through software programming and displayed in the touch screen.
5. The positioning device for hydraulic pressure as claimed in claim 1, wherein the oil inlet port of the hydraulic cylinder is connected to the bottom end of the hydraulic tank through a pipe, and a one-way electric valve and an oil pump motor are installed on the pipe.
6. The hydraulic positioning device as claimed in claim 5, wherein the one-way electric valve comprises a valve core and a coil, the valve core is installed at the oil inlet port of the hydraulic cylinder, and the coil is electrically connected with the digital output port of the controller terminal through a connecting wire.
7. The hydraulic positioning device as claimed in claim 5, wherein the oil pump motor comprises a motor and an impeller, the motor is a single-phase motor with 220V operation power supply, the motor is electrically connected with a 220V port of the AC power supply of the controller through a connecting wire, and the impeller is installed in the pipeline.
8. The hydraulic positioning device as claimed in claim 1, wherein the oil outlet port is connected to the top end through a pipe and a hydraulic oil tank, and an electric proportional valve is installed on the pipe.
9. A control method for a hydraulic positioning device according to any one of claims 1 to 8, comprising the steps of:
step 1: the telescopic distance of the hydraulic telescopic rod is set on the controller touch screen;
step 2: setting the minimum opening degree of the electric proportional valve on a touch screen of the controller, and simultaneously setting a P value and an I value of the electric proportional valve according to control requirements;
and step 3: opening a one-way electric valve in a touch screen of the controller;
and 4, step 4: starting an oil pump motor in a touch screen of the controller, and allowing oil in the hydraulic oil tank to flow into a hydraulic cylinder through a one-way electric valve under the driving of the oil pump motor;
and 5: when the distance detected by the distance measuring sensor reaches the distance of the hydraulic telescopic rod arranged on the touch screen of the controller, the oil pump motor stops running, the one-way electric valve is closed, and the minimum opening degree of the electric proportional valve is 0;
step 6: when the hydraulic telescopic device needs to retract, the opening degree of the electric proportional valve is increased on the touch screen of the controller, the one-way electric valve is opened, the oil pump motor is operated, the oil pump motor circulates, and oil in the hydraulic cylinder flows into the hydraulic oil tank due to the increase of the opening degree of the electric proportional valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911178658.0A CN110792655A (en) | 2019-11-27 | 2019-11-27 | Hydraulic positioning device and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911178658.0A CN110792655A (en) | 2019-11-27 | 2019-11-27 | Hydraulic positioning device and control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110792655A true CN110792655A (en) | 2020-02-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911178658.0A Pending CN110792655A (en) | 2019-11-27 | 2019-11-27 | Hydraulic positioning device and control method thereof |
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| CN (1) | CN110792655A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115367305A (en) * | 2022-08-09 | 2022-11-22 | 黄鹄科学技术有限公司 | Flexible transportation device for transporting airborne photoelectric countermeasure nacelle and use method |
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2019
- 2019-11-27 CN CN201911178658.0A patent/CN110792655A/en active Pending
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| JP2006258730A (en) * | 2005-03-18 | 2006-09-28 | Komatsu Ltd | Stroke position measuring device of hydraulic cylinder in hydraulic working machine |
| US20120073431A1 (en) * | 2009-05-29 | 2012-03-29 | Metso Paper, Inc. | Digital Hydraulic Controller |
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