CN104729490B - Intelligent device for dotting - Google Patents
Intelligent device for dotting Download PDFInfo
- Publication number
- CN104729490B CN104729490B CN201510057993.0A CN201510057993A CN104729490B CN 104729490 B CN104729490 B CN 104729490B CN 201510057993 A CN201510057993 A CN 201510057993A CN 104729490 B CN104729490 B CN 104729490B
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- China
- Prior art keywords
- tapper
- ready
- guide rail
- oil cylinder
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000003921 oil Substances 0.000 claims description 38
- 238000006073 displacement reaction Methods 0.000 claims description 30
- 238000003825 pressing Methods 0.000 claims description 10
- 238000004088 simulation Methods 0.000 claims description 9
- 238000011084 recovery Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 239000010705 motor oil Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 4
- 230000033001 locomotion Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010009 beating Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
- B25D9/06—Means for driving the impulse member
- B25D9/12—Means for driving the impulse member comprising a built-in liquid motor, i.e. the tool being driven by hydraulic pressure
- B25D9/125—Means for driving the impulse member comprising a built-in liquid motor, i.e. the tool being driven by hydraulic pressure driven directly by liquid pressure working with pulses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
- B25D9/14—Control devices for the reciprocating piston
- B25D9/26—Control devices for adjusting the stroke of the piston or the force or frequency of impact thereof
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Control Of Position Or Direction (AREA)
Abstract
The invention discloses a kind of intelligent device for dotting, guide rail that the housing is arranged at including housing, in the way of it can move in the horizontal direction, the tapper for being arranged at the guide rail and for driving the guide rail relative to the power set that housing is moved, its is simple in construction, it is easily operated, the mark of key point in engineering survey can be rapidly performed by automatically.
Description
Technical field
The present invention relates to the setting-out device for dotting in a kind of engineering survey, specifically a kind of intelligent device for dotting.
Background technology
With economic continuous growth, China's various regions highway construction is developed rapidly, and engineering survey setting-out work also becomes day
Become standardization and accuracy, and high-quality surveying and locating work can reduce or even avoid the generation of engineering accident, so that strong true
Protect the total quality of engineering.As can be seen here, surveying and locating work is a vital link for engineering construction.
In surveying and locating, the work for first having to carry out is that key point is marked, and positioning is got ready in being surveying and locating
Key, it directly influences the precision of whole surveying and locating engineering.Generally, it is all first using complete that positioning, which is got ready, in engineering
Stand instrument or tape measure is positioned, then marked by artificial setting-out, it is difficult to which precision is got in guarantee ready, and operating process is cumbersome, one
As need it is several it is personal coordinate complete, inefficiency drastically influence project progress, and cost is higher.
At present, device for dotting technology be have developed rapidly, some product labellings that device for dotting is used in production procedure, and it is tied
Structure is simply easily operated, easily product can be made a mark, can improve production efficiency and the qualification rate of product；Some will
It is used for bolts assemblies field, can mark, be widely used in bolt automatically, simple and practical；Some utilize device for dotting
Automatically dotting is carried out to material, operating efficiency can be improved, reduces labor intensity, but not a kind of engineering that is applied to is surveyed at present
The automatically dotting equipment that amount setting-out is got ready.
Therefore, for solve problem above, it is necessary to one kind existing setting-out device for dotting is improved, can realize from
The dynamic intelligent device for dotting got ready.
The content of the invention
In view of this, the purpose of the present invention be overcome defect of the prior art there is provided one kind it is simple in construction, it is easy to grasp
Make, the intelligent device for dotting of the mark of key point in engineering survey can be rapidly performed by automatically.
The intelligent device for dotting of the present invention, including housing, leading for housing is arranged in the way of it can move in the horizontal direction
Rail, the tapper for being arranged at guide rail and for driving guide rail relative to the power set that housing is moved；
Further, the power set include hydraulic motor, ball screw assembly, and electrohydraulic digital servo-drive system, hydraulic pressure horse
Up to be connected in ball screw assembly, and by the ball screw assembly, drive guide rail move；Electrohydraulic digital servo-drive system is used to control
Hydraulic motor act and including：
Numerical control device, for sending command pulse；
Displacement transducer I, being arranged at is used for the displacement for gathering tapper on tapper；
Numerical check device, its signal input part is connected to displacement transducer I, the position for receiving the collection of displacement transducer I
Shifting signal simultaneously generates according to the displacement signal and sends feedback pulse；
Loop is added and subtracted in pulse, and its signal input part is connected to the signal output part of numerical control device and numerical check device, is used for
Compare command pulse with generating and sending digital deflection after feedback pulse；
Digital-to-analog converter, its signal input part is connected to pulse plus-minus loop signal output end, for receiving digital deflection
And generate deviation of simulation voltage；
Servo amplifier, its signal input part is connected to digital-to-analog converter signal output part, for receiving deviation of simulation electricity
Press and export one and the proportional control electric current of deviation of simulation voltage signal；
Servo valve, its signal input part is connected to servo amplifier signal output part, for control electric current to be converted into liquid
Pressure energy is exported；
Further, the tapper include tapper housing and with tapper housing is slidably matched gets pen ready；Get ready
Pen is fixed with annular pressing plate, and tapper housing cavity is divided into pressure chamber and recovery chamber, pressure chamber and liquid by the annular pressing plate
Pressure motor oil-out is connected gets capable in the works got ready ready for driving；In recovery chamber pen is got ready provided with return spring for driving
Up return；
Further, the tapper housing includes cylindrical tube and is arranged at cylinder lower end for being gone in the works to getting ready
Carry out spacing postive stop baffle；
The intelligent device for dotting of the present invention also includes control system and the input being connected with control system signal input part
Equipment, input equipment includes the data for being used to key in the operation button for getting positional information ready and get positional information ready for showing
Display screen；Control system signal output part, which is connected to numerical control device, to be used to send control signal to numerical control device；
Further, the housing bottom is provided with spherical drive wheel, and spherical drive wheel is connected with hydraulic motor transmission；
Further, the tapper includes tapper I and tapper II；Being provided with guide rail is used to drive tapper I relative
In the oil cylinder I of guide rail movement and for driving tapper II relative to the oil cylinder II that guide rail is moved；
Further, the oil cylinder I is connected with oil cylinder II by a synchronization loop with hydraulic motor；Synchronization loop includes：
Displacement transducer II, provided with two and is individually fixed on oil cylinder I and oil cylinder II, for gather respectively oil cylinder I with
The displacement parameter of the piston rod of oil cylinder II；
Electric hydraulic control valve, is arranged in the oil circuit between hydraulic motor oil outlet end and oil cylinder II, the electrichydraulic control valve signal
Input is connected to the signal output part of displacement transducer II, for receiving displacement parameter and then continuously controlling its valve port
Aperture.
The beneficial effects of the invention are as follows：The intelligent device for dotting of the present invention, can use motor, hydraulic motor, hydraulic cylinder
Deng existing equipment as power set, by controlling the start-stop of power set, and then control guide rail stretched out out of housing or
Retract, most tapper is moved to behind the target location for needing to get ready at last, manipulate tapper and got ready, and then realize that positioning is beaten
The automation of point, this greatly improves operating efficiency, reduces engineering cost.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples：
Fig. 1 is structural representation of the invention；
Fig. 2 is Fig. 1 right view；
Fig. 3 is the structural representation of the tapper of the present invention；
Fig. 4 is the connection diagram of the electrohydraulic digital servo-drive system of the present invention；
Fig. 5 is control flow schematic diagram of the invention；
Fig. 6 is the connection diagram of the synchronization loop of the present invention.
Embodiment
Fig. 1 is the structural representation of the present invention, and Fig. 2 is Fig. 1 right view, as illustrated, the intelligence in the present embodiment is beaten
Point device, including housing 8, be arranged in the way of it can move in the horizontal direction the guide rail 4 of housing 8, be arranged at getting ready for guide rail 4
Device 5 and for driving guide rail 4 relative to the power set that housing 8 is moved, can be using motor, hydraulic motor, hydraulic cylinder etc.
Existing equipment controls the start and stop of power set by all existing control systems 2 (electromagnetic type, electric-liquid type etc.) as power set
Action, and then control guide rail 4 to stretch out or retract out of housing 8, most tapper 5 is moved to the target location for needing to get ready at last
Afterwards, manipulate tapper 5 to be got ready, and then realize the automation that positioning is got ready, this greatly improves operating efficiency, reduces work
Cheng Chengben.
In the present embodiment, the power set include hydraulic motor, ball screw assembly, and electrohydraulic digital servo-drive system 3,
Hydraulic motor transmission is connected to ball screw assembly, and drives guide rail 4 to move by the ball screw assembly,；As shown in figure 4, electro-hydraulic number
Word servo-drive system 3 be used for control hydraulic motor act and including：
Numerical control device, for sending command pulse；
Displacement transducer I, being arranged at is used for the displacement for gathering tapper 5 on tapper 5；
Numerical check device, its signal input part is connected to displacement transducer I, the position for receiving the collection of displacement transducer I
Shifting signal simultaneously generates according to the displacement signal and sends feedback pulse；
Loop is added and subtracted in pulse, and its signal input part is connected to the signal output part of numerical control device and numerical check device, is used for
Compare command pulse with generating and sending digital deflection after feedback pulse；
Digital-to-analog converter, its signal input part is connected to pulse plus-minus loop signal output end, for receiving digital deflection
And generate deviation of simulation voltage；
Servo amplifier, its signal input part is connected to digital-to-analog converter signal output part, for receiving deviation of simulation electricity
Press and export one and the proportional control electric current of deviation of simulation voltage signal；
Servo valve, its signal input part is connected to servo amplifier signal output part, for control electric current to be converted into liquid
Pressure energy is exported, so as to drive hydraulic motor to rotate, and passes through the shifting for being converted to guide rail 4 of ball screw adjutant's hydraulic motor
Dynamic, final control tapper 5 is moved to target location, and electrohydraulic digital servo-drive system 3 being capable of output displacement, speed or power in real time
Deng, and then automatically, quickly and accurately control the movement of whole device and dotting equipment.With control accuracy height, fast response time
The advantages of.
In the present embodiment, the tapper 5 include the housing 8 of tapper 5 and with beating that the housing 8 of tapper 5 is slidably matched
Point pen 504；As shown in figure 3, getting pen 504 ready is fixed with annular pressing plate 502, the annular pressing plate 502 is by the housing 8 of tapper 5
Chamber is divided into pressure chamber and recovery chamber, and pressure chamber is connected with hydraulic motor oil-out gets that pen 504 is descending to be beaten ready for driving
Point；After tapper 5 is moved to target location, the pressure oil that hydraulic motor is produced is communicated to pressure chamber, annular pressing plate 502 exists
The elastic force of return spring 503 is overcome in the presence of pressure oil, makes to get ready the descending realization of pen 504 and gets ready, get ready after end, can be with
Control pressure chamber pressure release, drives the return spring 503 in recovery chamber and gets the up return of pen 504 ready, when tapper 5 is according to system
Instruction be moved to the specified location of guide rail 4, in the presence of electrohydraulic digital servo-drive system 3, annular pressing plate 502 obtain pressure simultaneously pass
Return spring 503 is passed, pen 504 is now got ready and is moved down with pressing plate and automatically dotting, getting end rear fender pressure ready gradually reduces,
Automatically dotting equipment is moved up until recovering initial position under the reaction of return spring 503, is subsequently entered and next is got preparation ready.
In the present embodiment, the housing 8 of tapper 5 includes cylindrical tube and is arranged at cylinder lower end for getting ready
Pen 504 is descending to carry out spacing postive stop baffle 505, is come downwards to and postive stop baffle 505 when getting the annular pressing plate 502 on pen 504 ready
After contact, get pen 504 ready and will be unable to continue traveling downwardly by the position-limiting action of postive stop baffle 505, therefore, utilize the postive stop baffle
505 can control to get ready pen 504 get stroke ready.
The intelligent device for dotting of the present embodiment also includes control system 2 and is connected with the signal input part of control system 2
Input equipment 1, as shown in figure 5, input equipment 1 includes being used to key in the operation button for getting positional information ready and beating for showing
The data display screen of dot position information；The signal output part of control system 2, which is connected to numerical control device, to be used to send control to numerical control device
Signal processed, input equipment 1 can carry out data input on device for dotting upper left side, and control system 2 is the brain of whole device,
Processing data and instruction can be sent in real time, electrohydraulic digital servo-drive system 3, it is possible to achieve the movement of guide rail 4 and dotting equipment,
First have to determine starting point before getting ready and be marked in intelligent device for dotting, then according to Practical Project situation in input equipment 1
The points (or two neighboring spacing got ready) got line length ready and beaten are inputted, the data letter that 2 pairs of control system is received
Breath carries out calculating processing, it is determined that getting number ready and the coordinate each got ready and delivering this information in location equipment 6, positioning is set
Standby 6 calculate the position of each point according to the data message and starting point coordinate that receive, and feed back information to control system 2,
Command the tapper 5 on guide rail 4 in the presence of electrohydraulic digital servo-drive system 3 after its analyzing and processing, be moved to location equipment 6
The specified location of middle laser locator gets mark ready, then proceedes to next get flow ready.
In the present embodiment, the bottom of housing 8 is provided with spherical drive wheel 7, and spherical drive wheel 7 connects with hydraulic motor transmission
Connect, spherical drive wheel 7 can be arbitrarily mobile according to instruction, workable.
In the present embodiment, the tapper 5 includes tapper I and tapper II；Being provided with guide rail 4 is used to drive tapper
I relative to the oil cylinder I 10 of the movement of guide rail 4 and for driving tapper II relative to the oil cylinder II 11 that guide rail 4 is moved, the oil cylinder
I 10 provide pressure oil with oil cylinder II 11 by hydraulic motor, and the action of hydraulic motor is controlled by electrohydraulic digital servo-drive system 3, from
And can be with the action of control cylinder I 10 and oil cylinder II 11, the shifting of final control tapper 5 I and tapper 5 II relative to guide rail 4
It is dynamic.
In the present embodiment, the oil cylinder I 10 is connected with oil cylinder II 11 by a synchronization loop with hydraulic motor；Such as Fig. 6
Shown, synchronization loop includes：
Displacement transducer II 12, provided with two and is individually fixed on oil cylinder I 10 and oil cylinder II 11, for gathering oil respectively
The displacement parameter of cylinder I 10 and the piston rod of oil cylinder II 11；
Electric hydraulic control valve 13, is arranged in the oil circuit between hydraulic motor oil outlet end and oil cylinder II 11, the electric hydraulic control valve
Signal input part is connected to the signal output part of displacement transducer II, for receiving displacement parameter and then continuously controlling it
The aperture of valve port；Synchronization loop is the key for realizing executive component Synchronization Control.So-called synchronization loop is ensuring that in system
The displacement of two or more hydraulic cylinders during exercise is identical or is moved with same speed.In cylinder hydraulic system, influence
The factor of synchronization accuracy is a lot, for example, load, leakage, frictional resistance, the accuracy of manufacture, structural elasticity deformation outside hydraulic cylinder
And air content in fluid, can all it make motion asynchronous.Synchronization loop will overcome or reduce the influence of these factors as far as possible, synchronous
The precision of control element (control valve etc.) in loop and the use of control strategy etc. can improve whole system to a certain extent
The synchronization loop that electrohydraulic digital servo-drive system 3 in the net synchronization capability of system, the present embodiment is constituted using servo valve, it has higher
Synchronization accuracy.Control valve continuously controls the aperture of its valve port according to the feedback signal of displacement transducer II 12, makes to pass through
Flow it is identical with the flow by the valve port of reversal valve 9, so as to ensure that two hydraulic cylinders obtain two-way be synchronized with the movement.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail good embodiment, it will be understood by those within the art that, can be to skill of the invention
Art scheme is modified or equivalent substitution, and without departing from the objective and scope of technical solution of the present invention, it all should cover at this
Among the right of invention.
Claims (5)
1. a kind of intelligent device for dotting, it is characterised in that：It is arranged at including housing, in the way of it can move in the horizontal direction described
The guide rail of housing, the tapper for being arranged at the guide rail and the power dress moved for driving the guide rail relative to housing
Put；The tapper include tapper housing and with the tapper housing is slidably matched gets pen ready；The pen of getting ready is consolidated
Surely annular pressing plate is provided with, the tapper housing cavity is divided into pressure chamber and recovery chamber, the pressure chamber by the annular pressing plate
Connected with hydraulic motor oil-out and get capable in the works got ready ready for driving；Provided with return spring for driving in the recovery chamber
The up return of pen is got ready described in dynamic；Oil cylinder I is connected with oil cylinder II by a synchronization loop with the hydraulic motor；
The synchronization loop includes：Displacement transducer II, provided with two and is individually fixed on oil cylinder I and oil cylinder II, for point
Not Cai Ji oil cylinder I and the piston rod of oil cylinder II displacement parameter；
Reversal valve, is arranged in the oil circuit between hydraulic motor oil outlet end and oil cylinder I；
Electric hydraulic control valve, is arranged in the oil circuit between hydraulic motor oil outlet end and oil cylinder II, electrichydraulic control valve signal input
End is connected to the signal output part of displacement transducer II, for receiving displacement parameter and then continuously controlling opening for its valve port
Degree；
The power set include hydraulic motor, ball screw assembly, and electrohydraulic digital servo-drive system, the hydraulic motor transmission
It is connected to ball screw assembly, and drives guide rail to move by the ball screw assembly,；The electrohydraulic digital servo-drive system is used to control liquid
Pressure motor act and including：
Numerical control device, for sending command pulse；
Displacement transducer I, being arranged at is used for the displacement for gathering tapper on tapper；
Numerical check device, its signal input part is connected to institute's displacement sensors I, the position for receiving the collection of displacement transducer I
Shifting signal simultaneously generates according to the displacement signal and sends feedback pulse；
Loop is added and subtracted in pulse, and its signal input part is connected to the signal output part of numerical control device and numerical check device, for comparing
Command pulse after feedback pulse with generating and sending digital deflection；
Digital-to-analog converter, its signal input part is connected to pulse plus-minus loop signal output end, for receiving digital deflection and life
Into deviation of simulation voltage；
Servo amplifier, its signal input part is connected to digital-to-analog converter signal output part, for receiving deviation of simulation voltage simultaneously
Output one and the proportional control electric current of deviation of simulation voltage signal；
Servo valve, its signal input part is connected to servo amplifier signal output part, for control electric current to be converted into hydraulic energy
Output.
2. intelligent device for dotting according to claim 1, it is characterised in that：The tapper housing includes cylindrical tube
And cylinder lower end is arranged at for carrying out spacing postive stop baffle to getting row in the works ready.
3. intelligent device for dotting according to claim 1, it is characterised in that：Also include control system and with the control
System signal input connection input equipment, the input equipment include be used for key in get ready the operation button of positional information with
And get the data display screen of positional information ready for showing；The control system signal output part is connected to the numerical control device and used
In sending control signal to numerical control device.
4. intelligent device for dotting according to claim 1, it is characterised in that：The housing bottom is provided with spherical drive wheel,
The spherical drive wheel is connected with the hydraulic motor transmission.
5. intelligent device for dotting according to claim 1, it is characterised in that：The tapper is slidably matched with guide rail；Institute
Stating tapper includes tapper I and tapper II；Being provided with the guide rail is used to drive tapper I relative to the oil that guide rail is moved
Cylinder I and for driving tapper II relative to the oil cylinder II that guide rail is moved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510057993.0A CN104729490B (en) | 2015-02-04 | 2015-02-04 | Intelligent device for dotting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510057993.0A CN104729490B (en) | 2015-02-04 | 2015-02-04 | Intelligent device for dotting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104729490A CN104729490A (en) | 2015-06-24 |
| CN104729490B true CN104729490B (en) | 2017-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510057993.0A Expired - Fee Related CN104729490B (en) | 2015-02-04 | 2015-02-04 | Intelligent device for dotting |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108000765A (en) * | 2017-11-10 | 2018-05-08 | 又进无尘科技（苏州）有限公司 | A kind of device for dotting easy to mark |
| CN108491111B (en) * | 2018-05-19 | 2024-07-26 | 江西盛显科技有限公司 | Touch screen frequency point calibration device and calibration method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203460254U (en) * | 2013-07-30 | 2014-03-05 | 天津市吉源元印刷制品有限公司 | Punch |
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| SE526567C2 (en) * | 2003-07-16 | 2005-10-11 | Sandvik Intellectual Property | Support bar for long hole drill with wear surface in different color |
| CN101507989B (en) * | 2009-03-13 | 2011-02-09 | 马鞍山市鹏远锻压设备科技有限公司 | Numerically controlled annular steel-piece ellipse warp thermal-state straightening device |
| CN102211215B (en) * | 2011-06-03 | 2013-04-10 | 韩以伦 | Automatic location punching system of underfloor steel keel and use method thereof in container |
| CN104317252A (en) * | 2014-10-22 | 2015-01-28 | 江苏润仪仪表有限公司 | Small deep-hole drilling machine numerical control system |
| CN204421911U (en) * | 2015-02-04 | 2015-06-24 | 重庆交通大学 | Setting-out device for dotting |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203460254U (en) * | 2013-07-30 | 2014-03-05 | 天津市吉源元印刷制品有限公司 | Punch |
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Address after: No. 1, Fuxing Avenue, Shuang Fu new area, Jiangjin District, Chongqing Patentee after: CHONGQING JIAOTONG University Address before: 400074 Chongqing Nan'an District University Avenue, No. 66 Patentee before: chongqing jiaotong university |
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Inventor after: Zhang Tao Inventor after: Pan Guobing Inventor after: Zhang Kui Inventor after: Dang Xiaoyu Inventor before: Pan Guobing Inventor before: Dang Xiaoyu |
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Effective date of registration: 20180223 Address after: 550025 Guizhou Province, Guiyang city Huaxi District Guizhou University west campus building room 202-203. Patentee after: GUIZHOU ZHENGXIA TESTING & TECHNOLOGY CONSULTING CO.,LTD. Address before: No. 1, Fuxing Avenue, Shuang Fu new area, Jiangjin District, Chongqing Patentee before: chongqing jiaotong university |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20170811 Termination date: 20220204 |