CN106594001A - Visual maintaining system and method for hydraulic machine tool - Google Patents
Visual maintaining system and method for hydraulic machine tool Download PDFInfo
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- CN106594001A CN106594001A CN201710049051.7A CN201710049051A CN106594001A CN 106594001 A CN106594001 A CN 106594001A CN 201710049051 A CN201710049051 A CN 201710049051A CN 106594001 A CN106594001 A CN 106594001A
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- hydraulic
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- touch screen
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Classifications
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- 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
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
- F15B19/005—Fault detection or monitoring
-
- 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
- F15B21/02—Servomotor systems with programme control derived from a store or timing device; Control devices therefor
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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)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a visual maintaining system and method for a hydraulic machine tool. The visual maintaining system comprises a hydraulic system, a PLC and a touch screen. According to the schematic diagram of a hydraulic principle, the electrifying states of a motor and each valve of a pump in the hydraulic system are shown by two different colors under the control of the PLC; the oil charging states of an oil pipe and a cylinder body in the hydraulic system are shown by two different colors; the values of pressure and flow in the hydraulic system are obtained, and calculating treatment is carried out on the obtained pressure and flow values; address definition is carried out on each component marked with color variation and value display, and a touch screen hydraulic dynamic picture is drawn; and the touch screen is connected with the output end of the PLC and used for displaying the hydraulic dynamic picture, the state of each component in the hydraulic system is obtained in real time, and accordingly, failure is eliminated. The system and method help workers in maintaining the hydraulic machine tool, the failure judgment of the hydraulic machine tool is more accurate and simpler, and the dependence degree of maintenance personnel is reduced.
Description
Technical field
The present invention relates to machine upkeep technical field, more particularly to a kind of hydraulic machine visualization maintenance system and method.
Background technology
At present, the failture evacuation of hydraulic machine does not have systematic method or the instrument of maturation rely on, most maintenance
Rely on the micro-judgment of maintainer, hydraulic machine that pointer pressure is installed in key position typically according to concrete lathe,
In maintenance, observed pressure table numerical value is referred to, and as the factors such as distance cannot observe the numerical value of multiple tables simultaneously, maintenance is not
Just.
In addition, when hydraulic test failure is arranged, it is impossible to which measurement device quality directly perceived, channel interior hydraulic oil situation have no way of knowing
Dawn, the most of micro-judgment by maintainer of its breakdown maintenance, and many times fix a breakdown by changing part test, often
Occur changing hydraulic part by mistake, maintenance efficiency is low, and maintenance time is long, and high cost.
In prior art, domain variability is keeped in repair without the precedent monitored using dynamic menu in hydraulic test, but have and set in hydraulic pressure
The exploitation cases of design that standby upper utilization PLC and industrial configuration software " KingView " are monitored to hydraulic system, technology are also more ripe,
But it is primarily used to monitor and record the course of processing, non-hydraulic system dynamic menu shows, application category and purpose object are also
Differ widely.
The content of the invention
For drawbacks described above or deficiency, it is an object of the invention to provide a kind of hydraulic machine visualization maintenance system and side
Method, it is possible to increase hydraulic machine maintenance efficiency.
The technical scheme is that：
A kind of hydraulic machine visualizes maintenance system, including：Hydraulic system, PLC, PLC Analog input mModule and touch
Touch screen；
Some pressure transducers and flow sensing for detecting Hydraulic Station and pipeline are provided with the hydraulic system
PLC Analog input mModules, PLC Analog input mModules are connected with device, pressure transducer and flow transducer outfan
It is connected with PLC, PLC arranges the data address of pressure transducer and flow transducer to Hydraulic Station in hydraulic system, pressure is passed
Sensor and flow transducer will measure CPU of the data transfer in PLC, after treatment, make result with monitored pressure or stream
After amount matches, export to touch screen and shown；
The motor of pump in hydraulic system and each valve body are obtained electric situation according to hydraulic principle schematic diagram by the PLC, setting
Two kinds of different colours are indicated；By oil pipe in hydraulic system and the oil-filled state of cylinder body, it is set as that two kinds of different colours carry out table
Show；It is marked with the part that color change and numerical value shows and enters row address definition to all, draws touch screen hydraulic pressure dynamic menu；
The touch screen is connected with PLC outfans, for showing hydraulic pressure dynamic menu, obtains in real time in hydraulic system each
The state of part, and then failture evacuation is carried out, ancillary staff is keeped in repair to hydraulic machine.
The PLC obtains electric situation according to the motor and each valve body of pump in hydraulic system, will dead electricity is respectively two kinds not
Same color, while the arrow of valve body shows the flow direction of hydraulic oil.
The PLC respectively shows which by two kinds of different colours according to oil pipe in hydraulic system and the oil-filled state of cylinder body, setting
There is the state of oil and oil-free.
The PLC is additionally operable to according to touch screen hydraulic pressure dynamic menu is drawn, and machine tool hydraulic schematic diagram and valve body action are clapped
According to, and to photo disposal after, be uploaded to touch screen and shown, so that maintainer recalls machine tool hydraulic source at the scene at any time
Reason figure, assist trouble exclusion work.
Alarm lamp module is provided with the PLC, is set when pressure value and flow number monitoring are more than warning value
Alarm lamp is put, is shown on the touchscreen.
A kind of hydraulic machine visualizes method for maintaining, comprises the following steps：
Step 1：Machine tool hydraulic schematic diagram is reduced to hydraulic principle schematic diagram by analysis lathe hydraulic schematic diagram；
Step 2：According to hydraulic principle schematic diagram, the motor of pump in hydraulic system and each valve body are obtained into electric situation, set
Two kinds of different colours are indicated；By oil pipe in hydraulic system and the oil-filled state of cylinder body, it is set as that two kinds of different colours carry out table
Show；
Step 3：Pressure value and flow number in hydraulic system is obtained, and by acquired pressure value and flow
Numerical value carries out calculating process；
Step 4：It is marked with the part that color change and numerical value shows and enters row address definition in touch screen to all, and with
The state point of PLC is corresponding, PLC program, draws touch screen hydraulic pressure dynamic menu；
Step 5：According to touch screen hydraulic pressure dynamic menu, the state of all parts in hydraulic system, Jin Erjin are obtained in real time
Row failture evacuation, ancillary staff are keeped in repair to hydraulic machine.
According to hydraulic principle schematic diagram in the step 1, the motor of pump in hydraulic system and each valve body are obtained into electric situation,
Two kinds of different colours of setting are indicated and specifically include：
Electric situation is obtained according to the motor and each valve body of pump in hydraulic system, obtain, dead electricity be respectively two kinds of different colours, together
When valve body arrow show hydraulic oil flow direction.
It is described by oil pipe in hydraulic system and the oil-filled state of cylinder body, be set as that two kinds of different colours are indicated concrete bag
Include：
Pressure value and flow number in oil pipe and cylinder body are obtained in hydraulic system, pressure value and flow number were monitored
To there is oil condition during marginal value, otherwise it is, without oil condition, and to show which has the shape of oil and oil-free respectively by two kinds of different colours
State；
In acquisition hydraulic system, pressure value and flow number include：Pressure sensing is arranged to Hydraulic Station in hydraulic system
Device and flow transducer, pressure transducer and flow transducer will measure CPU of the data transfer in PLC, after entering process, make
As a result with monitored pressure or flows match after, output display.
After the drafting touch screen hydraulic pressure dynamic menu, machine tool hydraulic source reason figure and valve body action schedule are taken pictures, to photo
After process, it is uploaded to touch screen and is shown, so that maintainer recalls machine tool hydraulic source reason figure, auxiliary event at the scene at any time
Barrier excludes work.
Compared with the prior art, beneficial effects of the present invention are：
The invention provides one kind intuitively hydraulic machine visualization maintenance system, by touch-screen applications in hydraulic machine
In control, display, with reference to the powerful control functions of PLC, lathe each several part pressure and each valve body letter are intuitively shown on the touchscreen
Number, the status information such as pipeline is oil-filled, maintainer can directly observe each position running status of lathe by touch screen, quickly to sentence
Disconnected, remover apparatus failure, improves the maintenance efficiency of equipment, has saved maintenance time, reduce maintenance cost.
Further, the present invention is additionally provided with alarm lamp, when Hydraulic Station and loine pressure or flow monitoring value exceed
During presetting warning value, reported to the police in time, reduced the damage to hydraulic machine.
The invention provides one kind intuitively hydraulic machine visualization method for maintaining, after the programming of PLC, by hydraulic pressure system
In system, the device such as pump, valve body, pipeline, hydraulic cylinder does frame out, shows that pump startup, valve body obtain electric, pipeline using its color change
The action such as have oil, cylinder body oil-filled.Simultaneously additional pressure is installed to Hydraulic Station and pipeline and flow transducer is monitored, and by touching
Screen Dynamic Announce its hydraulic diagram, helps hydraulic pressure maintainer to judge equipment operation condition and failure cause so that hydraulic press
The breakdown judge of bed more accurately, simply, reduces the degree of dependence to maintainer.
Description of the drawings
Fig. 1 is hydraulic machine visualization maintenance system structural representation of the present invention；
Fig. 2 is the method flow block diagram of the embodiment of the present invention；
Fig. 3 is the supervising device implementation procedure FB(flow block) of the embodiment of the present invention.
Specific embodiment：
Those skilled in the art understands the technology contents of the present invention for convenience, with reference to example and accompanying drawing to this
It is bright to be described in further detail.
As shown in figure 1, present invention also offers a kind of hydraulic machine visualization maintenance system, including：Hydraulic system 1,
PLC4, PLC Analog input mModule 6 and touch screen 5；
Some pressure transducers 2 for detecting Hydraulic Station and pipeline are provided with the hydraulic system 1 and flow is passed
Sensor 3, is connected with PLC Analog input mModules 6 on 3 outfan of pressure transducer 2 and flow transducer, and PLC analog quantitys are defeated
Enter module 6 to be connected with PLC4, PLC4 arranges Hydraulic Station in hydraulic system the data of pressure transducer 2 and flow transducer 3
Address, pressure transducer 2 and flow transducer 3 will measure CPU of the data transfer in PLC4, after treatment, make result with
After monitored pressure or flows match, export to touch screen 5 and shown；
The motor of pump in hydraulic system 1 and each valve body are obtained electric situation according to hydraulic principle schematic diagram by the PLC4, if
Fixed two kinds of different colours are indicated；By oil pipe in hydraulic system 1 and the oil-filled state of cylinder body, it is set as that two kinds of different colours are carried out
Represent；And pressure value and flow number in hydraulic system is obtained, acquired pressure value and flow number are entered
Row calculating is processed；It is marked with the part that color change and numerical value shows and enters row address definition to all, draws touch screen hydraulic pressure and move
State picture；
The touch screen 5 is connected with PLC4 outfans, for showing hydraulic pressure dynamic menu, each in acquisition hydraulic system in real time
The state of individual part, and then failture evacuation is carried out, ancillary staff is keeped in repair to hydraulic machine.
Specifically, PLC4 obtains electric situation according to the motor of pump in hydraulic system 1 and each valve body, will dead electricity is respectively two
Different colours are planted, while the arrow of valve body shows the flow direction of hydraulic oil；And according to oil pipe in hydraulic system 1 and the oil-filled shape of cylinder body
State, sets and shows which has the state of oil and oil-free respectively by two kinds of different colours.
PLC4 is additionally operable to according to touch screen hydraulic pressure dynamic menu is drawn, and machine tool hydraulic source reason figure and valve body action schedule are clapped
According to, and to photo disposal after, be uploaded to touch screen and shown, so that maintainer recalls machine tool hydraulic source at the scene at any time
Reason figure, assist trouble exclusion work.
Preferably, alarm lamp is provided with the present invention, when pressure value and flow number monitored warning value,
Alarm lamp is set on touch screen hydraulic pressure dynamic menu, so that maintainer finds the trouble point of device, Jin Erji in time
When make breakdown judge.
As shown in Fig. 2 the invention provides one kind intuitively hydraulic machine visualization method for maintaining, comprise the following steps：
Step 1：Machine tool hydraulic schematic diagram is reduced to hydraulic principle schematic diagram by analysis lathe hydraulic schematic diagram；
Step 2：According to hydraulic principle schematic diagram, the motor of pump in hydraulic system 1 and each valve body are obtained into electric situation, set
Two kinds of different colours are indicated；By oil pipe in hydraulic system 1 and the oil-filled state of cylinder body, it is set as that two kinds of different colours carry out table
Show；
Specifically, electric situation is obtained according to the motor of pump in hydraulic system 1 and each valve body, obtain, dead electricity be respectively two kinds not
Same color, while the arrow of valve body shows the flow direction of hydraulic oil.
Step 3：Pressure value and flow number in hydraulic system 1 is obtained, and by acquired pressure value and stream
Numerical quantity carries out calculating process；
Specifically, obtaining the pressure value and flow number of oil pipe and cylinder body in hydraulic system 1, pressure value and flow number
To there is oil condition when value monitored marginal value, be otherwise without oil condition, and by two kinds of different colours show respectively its have oil with
The state of oil-free.
Preferably, in acquisition hydraulic system 1, pressure value and flow number include：
Pressure transducer and flow transducer, pressure transducer and flow transducer are arranged to Hydraulic Station in hydraulic system 1
CPU of the data transfer in PLC will be measured, writing corresponding program carries out calculating process to the digital quantity, after treatment, makes knot
Fruit with monitored pressure or flows match after, the result is shown to touch screen 5 by RS232 data line transfers.
Preferably, alarm lamp is provided with the present invention, when pressure value and flow number monitored warning value,
Alarm lamp is set on touch screen hydraulic pressure dynamic menu, so that maintainer finds the trouble point of device, Jin Erji in time
When make breakdown judge.
Step 4：It is marked with the part that color change and numerical value shows and enters row address definition, and the state with PLC to all
Corresponding, the PLC program of point, draws touch screen hydraulic pressure dynamic menu；For display directly perceived, the picture of part valve body need to be overlapped to be painted
System, its address points need rationally to write in PLC program.
Step 5：According to touch screen hydraulic pressure dynamic menu, the state of all parts in hydraulic system 1, Jin Erjin are obtained in real time
Row failture evacuation, ancillary staff are keeped in repair to hydraulic machine.
Further, in the present invention, after drawing touch screen hydraulic pressure dynamic menu, to machine tool hydraulic source reason figure and valve body action
Table is taken pictures, to photo disposal after, be uploaded to touch screen and shown, so that maintainer is recalled not in the same time at the scene at any time
Machine tool hydraulic source reason figure, assist trouble exclusion work.
As shown in Figure 3, there is provided the implementing monitoring device implementation procedure process of the present invention：
First, formulate overall embodiment；
Then 1 pressure of hydraulic system, the layout of flow detector are carried out respectively, installed, and touch screen hydraulic pressure dynamic
Software configuration and picture making in picture, and carry out PLC program and write；
Secondly, monitoring is started according to drawn touch screen hydraulic pressure dynamic menu to all measurement signals and circuit；
Finally, carry out PLC touch screen data and each hydraulic pressure menu display function are debugged with touch screen on-line debugging, so it is whole
Machine runs the hydraulic monitoring system, obtains the abort situation in hydraulic machine in time, so that maintainer can pass through touch screen
The each position running status of lathe is observed directly, quickly to judge, remover apparatus failure.
The application of the present invention, can cause the breakdown judge of hydraulic machine more accurately, it is simple, reduce to maintainer according to
Bad degree, the exclusion of hydraulic machine failure will be keeped in repair into " fool " formula, effectively be reduced maintenance time, reduce the erroneous judgement of failure,
Maintenance cost is saved, maintainer quantity after large area use, can be suitably reduced, the cost of labor of maintenance is reduced.
The technology is applied on simpler hydraulic test, and the maintenance of equipment time can save more than 50%, service material cost
30% can be saved, and greatly improves utilization rate of equipment and installations and equipment performance.If this invention is applied to relatively large hydraulic test, effect will
It is more significantly.
The wherein specific implementation of above-described embodiment only present invention, its description are more concrete and detailed, but can not
Therefore it is interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art,
Without departing from the inventive concept of the premise, some deformations and improvement can also be made, these obvious alternative forms are equal
Belong to protection scope of the present invention.
Claims (9)
1. a kind of hydraulic machine visualizes maintenance system, it is characterised in that include：Hydraulic system (1), PLC (4), PLC analog quantitys
Input module (6) and touch screen (5)；
Some pressure transducers (2) for detecting Hydraulic Station and pipeline are provided with the hydraulic system (1) and flow is passed
PLC Analog input mModules (6), PLC are connected with sensor (3), pressure transducer (2) and flow transducer (3) outfan
Analog input mModule (6) is connected with PLC (4), and PLC (4) arranges pressure transducer (2) and stream to Hydraulic Station in hydraulic system
The data address of quantity sensor (3), pressure transducer (2) and flow transducer (3) will measure data transfer in PLC (4)
CPU, after treatment, after making result and monitored pressure or flows match, exports to touch screen (5) and is shown；
The motor and each valve body of pump in hydraulic system (1) are obtained electric situation according to hydraulic principle schematic diagram by the PLC (4), if
Fixed two kinds of different colours are indicated；By oil pipe in hydraulic system (1) and the oil-filled state of cylinder body, it is set as that two kinds of different colours enter
Row is represented；It is marked with the part that color change and numerical value shows and enters row address definition to all, draws touch screen hydraulic pressure dynamic picture
Face；
The touch screen (5) is connected with PLC (4) outfan, for showing hydraulic pressure dynamic menu, each in acquisition hydraulic system in real time
The state of individual part, and then failture evacuation is carried out, ancillary staff is keeped in repair to hydraulic machine.
2. a kind of hydraulic machine according to claim 1 visualizes maintenance system, it is characterised in that PLC (4) basis
In hydraulic system (1), the motor and each valve body of pump obtains electric situation, incites somebody to action to obtain dead electricity respectively two kinds of different colours, while valve body
Arrow shows the flow direction of hydraulic oil.
3. a kind of hydraulic machine according to claim 1 and 2 visualizes maintenance system, it is characterised in that the PLC (4)
According to oil pipe in hydraulic system (1) and the oil-filled state of cylinder body, set and show which has oil with oil-free respectively by two kinds of different colours
State.
4. a kind of hydraulic machine according to claim 1 visualizes maintenance system, it is characterised in that the PLC (4) is also used
According to draw touch screen hydraulic pressure dynamic menu, machine tool hydraulic schematic diagram and valve body action are taken pictures, and to photo disposal after, on
Reach touch screen to be shown, so that maintainer recalls machine tool hydraulic source reason figure at the scene at any time, assist trouble excludes work
Make.
5. a kind of hydraulic machine according to claim 1 visualizes maintenance system, it is characterised in that set in the PLC (4)
Alarm lamp module is equipped with, alarm lamp is set when pressure value and flow number monitoring are more than warning value, is being touched
Show on screen (5).
6. a kind of hydraulic machine visualizes method for maintaining, it is characterised in that comprise the following steps：
Step 1：Machine tool hydraulic schematic diagram is reduced to hydraulic principle schematic diagram by analysis lathe hydraulic schematic diagram；
Step 2：According to hydraulic principle schematic diagram, the motor and each valve body of pump in hydraulic system (1) are obtained into electric situation, setting two
Plant different colours to be indicated；By oil pipe in hydraulic system (1) and the oil-filled state of cylinder body, it is set as that two kinds of different colours carry out table
Show；
Step 3：Obtain pressure value and flow number in hydraulic system (1), and by acquired pressure value and flow
Numerical value carries out calculating process；
Step 4：It is marked with the part that color change and numerical value shows and enters row address definition in touch screen (5) to all, and with
The state point of PLC is corresponding, PLC program, draws touch screen hydraulic pressure dynamic menu；
Step 5：According to touch screen hydraulic pressure dynamic menu, the state of all parts in hydraulic system (1) is obtained in real time, and then is carried out
Failture evacuation, ancillary staff are keeped in repair to hydraulic machine.
7. a kind of hydraulic machine according to claim 6 visualizes method for maintaining, it is characterised in that root in the step 1
According to hydraulic principle schematic diagram, the motor and each valve body of pump in hydraulic system (1) are obtained into electric situation, two kinds of different colours of setting enter
Row expression is specifically included：
Electric situation is obtained according to the motor and each valve body of pump in hydraulic system (1), obtain, dead electricity be respectively two kinds of different colours, together
When valve body arrow show hydraulic oil flow direction.
8. a kind of hydraulic machine according to claim 6 or 7 visualizes method for maintaining, it is characterised in that described by hydraulic pressure
Oil pipe and the oil-filled state of cylinder body in system (1), are set as that two kinds of different colours are indicated and specifically include：
Pressure value and flow number in (1) oil pipe and cylinder body are obtained in hydraulic system, pressure value and flow number were monitored
To there is oil condition during marginal value, otherwise it is, without oil condition, and to show which has the shape of oil and oil-free respectively by two kinds of different colours
State；
In acquisition hydraulic system (1), pressure value and flow number include：Pressure is arranged to Hydraulic Station in hydraulic system (1) to pass
Sensor and flow transducer, pressure transducer and flow transducer will measure CPU of the data transfer in PLC, after entering process,
After making result and monitored pressure or flows match, output display.
9. a kind of hydraulic machine according to claim 6 visualizes method for maintaining, it is characterised in that the drafting touch screen
After hydraulic pressure dynamic menu, machine tool hydraulic source reason figure and valve body action schedule are taken pictures, to photo disposal after, be uploaded to touch screen in addition
Show, so that maintainer recalls machine tool hydraulic source reason figure, assist trouble exclusion work at the scene at any time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710049051.7A CN106594001A (en) | 2017-01-23 | 2017-01-23 | Visual maintaining system and method for hydraulic machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710049051.7A CN106594001A (en) | 2017-01-23 | 2017-01-23 | Visual maintaining system and method for hydraulic machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106594001A true CN106594001A (en) | 2017-04-26 |
Family
ID=58586188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710049051.7A Pending CN106594001A (en) | 2017-01-23 | 2017-01-23 | Visual maintaining system and method for hydraulic machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106594001A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113093652A (en) * | 2021-04-21 | 2021-07-09 | 徐海 | Circuit monitoring method for numerical control machine tool |
| CN114088140A (en) * | 2021-11-27 | 2022-02-25 | 东莞市深亚精密机械有限公司 | Oil way detection control system and working method thereof |
| CN115145217A (en) * | 2022-06-20 | 2022-10-04 | 中国第一汽车股份有限公司 | Oil filter screen state real-time detection method, system, equipment, storage medium and automobile |
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Inventor after: Li Qi Inventor after: Yang Tao Inventor after: Zhu Liangliang Inventor after: Zhang Chaofu Inventor after: Xi Weifeng Inventor after: Fu Qiang Inventor before: Yang Tao Inventor before: Zhu Liangliang Inventor before: Zhang Chaofu Inventor before: Xi Weifeng Inventor before: Fu Qiang |
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Application publication date: 20170426 |
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| RJ01 | Rejection of invention patent application after publication |