CN105021161B - A kind of digital display squareness detection jig - Google Patents
A kind of digital display squareness detection jig Download PDFInfo
- Publication number
- CN105021161B CN105021161B CN201510102601.8A CN201510102601A CN105021161B CN 105021161 B CN105021161 B CN 105021161B CN 201510102601 A CN201510102601 A CN 201510102601A CN 105021161 B CN105021161 B CN 105021161B
- Authority
- CN
- China
- Prior art keywords
- cubing
- detection
- display
- axis
- girder
- 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.)
- Active
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 68
- 238000006073 displacement reaction Methods 0.000 claims abstract description 30
- 238000007689 inspection Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 6
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 238000004458 analytical method Methods 0.000 claims description 2
- 238000003754 machining Methods 0.000 abstract description 35
- 238000005457 optimization Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 208000008425 Protein Deficiency Diseases 0.000 description 1
- 238000011030 bottleneck Methods 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 238000011031 large scale production Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof in so far as they are not adapted to particular types of measuring means of the preceding groups
- G01B21/22—Measuring arrangements or details thereof in so far as they are not adapted to particular types of measuring means of the preceding groups for measuring angles or tapers; for testing the alignment of axes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof in so far as they are not adapted to particular types of measuring means of the preceding groups
- G01B21/30—Measuring arrangements or details thereof in so far as they are not adapted to particular types of measuring means of the preceding groups for measuring roughness or irregularity of surfaces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof in so far as they are not adapted to particular types of measuring means of the preceding groups
- G01B21/32—Measuring arrangements or details thereof in so far as they are not adapted to particular types of measuring means of the preceding groups for measuring the deformation in a solid
Abstract
The invention discloses a kind of digital display squarenesses to detect jig, including left cubing, middle cubing, right cubing, girder, axis, angular transducer, displacement sensor, cylindrical cavity, detection faces, detector, battery, PLC controller, display, connecting line；The left cubing, middle cubing, right cubing section are right angle body, cylindrical cavity is equipped at the interior angle of the right angle body, the left cubing, middle cubing are fixedly connected between right cubing with axis by girder, two ends of the axis are equipped with angular transducer, the left cubing, right cubing mounted inside have multiple displacement sensors, and the detector of institute's displacement sensors is set in the detection faces；PLC controller and display are provided in the middle cubing；The present invention uses integrated detection jig, and squareness detection, flatness detection and torsion resistance inspection optimization are combined into one, easy to detect quick, high-efficient, meets batch machining and quality testing needs.
Description
Technical field
The present invention relates to a kind of morphemes to detect jig technical equipment field, in particular to a kind of digital display squareness detection is controlled
Tool.
Background technique
With the development of science and technology, the precision requirement of work pieces process is continuously improved, to ensure the respective performances of workpiece,
During process of manufacture and quality testing, it is often necessary to be detected to some right angle of workpiece, to determine that two are put down
Whether the angle between face reaches orthogonal angle.
In the prior art, the efficiency bottle neck in always production or metrology operation is operated to the detection of workpiece squareness,
Common detection method is completed using square and thickness feeler gauge, but in the detection process compared with machining long workpieces right angle,
Since there is squareness distortion problems on Workpiece length direction, there is uneven problem on the two side faces of machining long workpieces,
It can not quickly and effectively the squareness to batch machining long workpieces, torsion resistance, flatness be detected using usual method, often to grow
The squareness quality of workpiece is difficult to control, and detection efficiency is low, it is difficult to meet batch detection in large-scale production process, fast
Speed detection job requirements.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of digital display squarenesses to detect jig, in the prior art
Deficiency, seperated linkage squareness cubing is made by Precision Machining, the squareness of machining long workpieces is detected, using multiple points
The flatness that formula displacement sensor surveys face to machining long workpieces detects, and is examined using torsion resistance of the angular transducer to machining long workpieces
It surveys, and squareness detection, flatness detection and torsion resistance inspection optimization is combined into one, be applied to production and processing and quality
In detection process, high efficient detection quickly and easily is carried out to the squareness of machining long workpieces, to improve the squareness of machining long workpieces, turn round
Curvature, flatness detection efficiency and detection speed, meet batch machining and quality testing needs.
In order to achieve the above objectives, technical scheme is as follows: a kind of digital display squareness detection jig, including left inspection
Tool, middle cubing, right cubing, girder, axis, angular transducer, displacement sensor, cylindrical cavity, detection faces, detector, battery, PLC
Controller, display, connecting line, it is characterised in that:
The left cubing, middle cubing, right cubing, girder and axis are that high-strength alloy Steel material is processed by high-precision
At the left cubing, middle cubing, right cubing cross-sectional shape are right angle body, and the right angle body is two rectangle compositions, described
Be provided with cylindrical cavity at the interior angle of right angle body, the cylindrical cavity section be inwardly recessed it is arc-shaped, to avoid being damaged in detection process
Hurt the straight ends of workpiece；The left cubing, middle cubing, right cubing orthogonal two faces in inside be detection faces, it is described
Detection faces are mutually perpendicular to, and constitute the right angle of standard；The left cubing, middle cubing are fixedly connected between right cubing by girder,
The girder is by being spirally connected and left cubing, middle cubing, right cubing fixing assembling；The girder, left cubing, middle cubing, right cubing
Center is provided with axis, and the axis is hollow shaft, is the cable-through hole of connecting line inside the axis；The two of the axis
End is provided with angular transducer, and the left cubing, right cubing mounted inside have multiple displacement sensors, institute's displacement sensors
Detector is set in the detection faces；The left cubing, right cubing are internally provided with battery, are provided in the middle cubing
PLC controller and display, the display are set on the lateral surface of the middle cubing, the PLC controller and battery, position
Displacement sensor, angular transducer, display are connected by connecting line electric signal, and the display is provided with two, two institutes
State display simultaneous display data detection signal.
Institute's displacement sensors are digital type linear displacement transducer, and institute's displacement sensors are vertically set on the detection
On face, in the left cubing there are four settings, in the right cubing there are four settings.
The angular transducer is contactless angular transducer, and the angular transducer is sleeved and fixed the two of the axis
End.
Memory module and communication module, the number of the memory module storage on-site test are provided in the PLC controller
It is believed that breath, the communication module and computer transmit detection signal by transmission of wireless signals mode, by computer to detection
The data statistic analysis at scene.
The operation principle of the present invention is that: left inspection is manufactured by high-precision squareness Precision Machining using high strength alloy steel
Tool, middle cubing, right cubing, girder, axis；And detection faces, cylindrical cavity are processed in the left cubing, middle cubing and right cubing；It will
PLC controller, display, battery, displacement sensor, angular transducer are assembled to left cubing, right cubing, in middle cubing, into one
Being integrated by girder, axis, connecting line for step, preset control software is assembled in PLC controller, and is examined to digital display squareness
Measurement fixture is calibrated, can squareness, torsion resistance, flatness to machining long workpieces detect, pass through the right angle to machining long workpieces
Degree, torsion resistance and flatness detection, relevant detection data is obtained from display, thus judges the quality problems of machining long workpieces,
Disposably, detection operation is carried out to the morpheme face of machining long workpieces easily and fast.
Through the above technical solutions, the beneficial effect of technical solution of the present invention is: making seperated linkage by Precision Machining
Squareness cubing detects the squareness of machining long workpieces, and using multiple point type displacement sensors machining long workpieces are surveyed with the flatness in face
It is detected, is detected using torsion resistance of the angular transducer to machining long workpieces, be integrated into inspection using PLC controller and display
Squareness detection, flatness detection and torsion resistance inspection optimization are combined into one, are applied to production and processing and matter by measurement fixture
Measure in detection process, high efficient detection quickly and easily carried out to the squarenesses of machining long workpieces, thus improve the squareness of machining long workpieces,
Torsion resistance, flatness detection efficiency and detection speed, meet batch machining and quality testing needs.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of digital display squareness detection jig structure schematic diagram disclosed in the embodiment of the present invention；
Fig. 2 is a kind of digital display squareness detection jig side view schematic diagram disclosed in the embodiment of the present invention；
Fig. 3 detects jig AA to side view for a kind of digital display squareness disclosed in the embodiment of the present invention.
Number and corresponding component title represented by letter in figure:
1. right 4. girder of cubing of cubing 3. in left cubing 2.
5. 6. angular transducer of axis, 7. displacement sensor, 8. cylindrical cavity
9. 10. detector of detection faces, 11. battery 12.PLC controller
13. 14. connecting line of display
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
According to Fig. 1, Fig. 2 and Fig. 3, the present invention provides a kind of digital display squarenesses to detect jig, including left cubing 1, middle inspection
Have 2, right cubing 3, girder 4, axis 5, angular transducer 6, displacement sensor 7, cylindrical cavity 8, detection faces 9, detector 10, battery
11, PLC controller 12, display 13, connecting line 14.
The left cubing 1, middle cubing 2, right cubing 3, girder 4 and axis 5 are that high-strength alloy Steel material passes through high-precision
It is process, the left cubing 1, middle cubing 2,3 cross-sectional shape of right cubing are right angle body, and the right angle body is two rectangles
Composition, is provided with cylindrical cavity 8 at the interior angle of the right angle body, 8 section of cylindrical cavity be inwardly recessed it is arc-shaped, to avoid inspection
The straight ends of disfiguring workpiece during survey；Orthogonal two faces in inside of the left cubing 1, middle cubing 2, right cubing 3
For detection faces 9, and constitute the right angle of standard；The left cubing 1, middle cubing 2 are fixedly connected by girder 4 between right cubing 3,
The girder 4 is by being spirally connected and left cubing 1, middle cubing 2,3 fixing assembling of right cubing；The girder 4, left cubing 1, middle cubing 2,
Right 3 center of cubing is provided with axis 5, and the axis 5 is hollow shaft, is the cable-through hole of connecting line 14 inside the axis 5；
Two ends of the axis 5 are provided with angular transducer 6, and the left cubing 1,3 mounted inside of right cubing have multiple displacement sensors
7, the detector 10 of institute's displacement sensors 7 is set in the detection faces 9；The left cubing 1, right cubing 3 are internally provided with
Battery 11；PLC controller 12 and display 13 are provided in the middle cubing 2, the display 13 is set to the middle cubing 2
Lateral surface on, the PLC controller 12 passes through connecting line with battery 11, displacement sensor 7, angular transducer 6, display 13
Electric signal connection, the display 13 are provided with two, two 13 simultaneous display data detection signals of display.
Institute's displacement sensors 7 are digital type linear displacement transducer, and institute's displacement sensors 7 are vertically set on the inspection
On survey face 9, in the left cubing 1 there are four settings, in the right cubing 3 there are four settings.
The angular transducer 6 is contactless angular transducer, and the angular transducer 6 is sleeved and fixed in the axis 5
Two ends.
Memory module and communication module are provided in the PLC controller 12, the memory module storage on-site test
Data information, the communication module and computer transmit detection signal by transmission of wireless signals mode, facilitate the live number of detection
According to statistical analysis.
Concrete operation step of the present invention are as follows: use high strength alloy steel, by high-precision squareness Precision Machining, manufacture is left
Cubing 1, middle cubing 2, right cubing 3, girder 4, axis 5；And detection is processed in the left cubing 1, middle cubing 2 and right cubing 3
Face 9, cylindrical cavity 8；By PLC controller 12, display 13, battery 11, displacement sensor 7, angular transducer 6 be assembled to left cubing 1,
It is further integrated by girder 4, axis 5, connecting line 14 in right cubing 3, middle cubing 2, preset control software is assembled to
In PLC controller 12, and digital display squareness detection jig is calibrated, it can squareness, torsion resistance, plane to machining long workpieces
Degree is detected, and is detected by squareness, torsion resistance and the flatness to machining long workpieces, relevant detection is obtained from display 13
Thus data judge the quality problems of machining long workpieces, disposably, easily and fast carry out detection operation to the morpheme face of machining long workpieces.
By above-mentioned specific embodiment, the beneficial effects of the present invention are: making seperated linkage right angle by Precision Machining
Degree cubing detects the squareness of machining long workpieces, is carried out using the flatness that multiple point type displacement sensors survey face to machining long workpieces
Detection, is detected using torsion resistance of the angular transducer to machining long workpieces, is integrated into detection using PLC controller and display and controls
Squareness detection, flatness detection and torsion resistance inspection optimization are combined into one, are applied to production and processing and quality inspection by tool
During survey, high efficient detection quickly and easily is carried out to the squareness of machining long workpieces, to improve the squareness of machining long workpieces, distortion
Degree, flatness detection efficiency and detection speed, meet batch machining and quality testing needs.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (4)
1. a kind of digital display squareness detects jig, which is characterized in that including left cubing, middle cubing, right cubing, girder, axis, angle
Spend sensor, displacement sensor, cylindrical cavity, detection faces, detector, battery, PLC controller, display, connecting line；The left inspection
Tool, middle cubing, right cubing, girder and axis be high-strength alloy Steel material by high-precision is process, the left cubing, in
Cubing, right cubing cross-sectional shape are right angle body, and the right angle body is that two rectangles form, at the interior angle of the right angle body
It is provided with cylindrical cavity, the cylindrical cavity section is to be inwardly recessed arc-shaped, and the left cubing, middle cubing, the inside of right cubing are mutual
Two vertical faces are detection faces, and the detection faces are mutually perpendicular to, and constitute the right angle of standard；The left cubing, middle cubing, the right side
It is fixedly connected between cubing by girder, the girder is by being spirally connected and left cubing, middle cubing, right cubing fixing assembling；It is described
Girder, left cubing, middle cubing, right cubing center are provided with axis, and it is to connect inside the axis that the axis, which is hollow shaft,
The cable-through hole of wiring；Two ends of the axis are provided with angular transducer, and the left cubing, right cubing mounted inside have multiple positions
The detector of displacement sensor, institute's displacement sensors is set in the detection faces；The left cubing, right cubing are internally provided with
Battery is provided with PLC controller and display in the middle cubing, and the display is set to the lateral surface of the middle cubing
On, the PLC controller is connect with battery, displacement sensor, angular transducer, display by connecting line electric signal, institute
It states display and is provided with two, two display simultaneous display data detection signals.
2. a kind of digital display squareness according to claim 1 detects jig, which is characterized in that institute's displacement sensors are number
Word formula linear displacement transducer, institute's displacement sensors are vertically set in the detection faces, are provided with four in the left cubing
It is a, in the right cubing there are four settings.
3. a kind of digital display squareness according to claim 1 detects jig, which is characterized in that the angular transducer is nothing
Contact angle sensor, the angular transducer are sleeved and fixed at two ends of the axis.
4. a kind of digital display squareness according to claim 1 detects jig, which is characterized in that set in the PLC controller
It is equipped with memory module and communication module, the data information of the memory module storage on-site test, the communication module and calculating
Machine transmits detection signal by transmission of wireless signals mode, by computer to the data statistic analysis at detection scene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510102601.8A CN105021161B (en) | 2015-03-09 | 2015-03-09 | A kind of digital display squareness detection jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510102601.8A CN105021161B (en) | 2015-03-09 | 2015-03-09 | A kind of digital display squareness detection jig |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105021161A CN105021161A (en) | 2015-11-04 |
| CN105021161B true CN105021161B (en) | 2018-12-11 |
Family
ID=54411313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510102601.8A Active CN105021161B (en) | 2015-03-09 | 2015-03-09 | A kind of digital display squareness detection jig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105021161B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105466386B (en) * | 2015-12-31 | 2019-09-20 | 上海君屹工业自动化股份有限公司 | A kind of flatness checking device |
| CN110260766B (en) * | 2019-07-29 | 2022-05-13 | 京东方科技集团股份有限公司 | Angle plate detection jig, system and detection method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2819308B1 (en) * | 2001-01-08 | 2008-10-10 | Mario Bartolomeo | ESSENTIAL EQUER-LEVEL TOOL PERMITTING THE APLOMB, THE EQUERRAGE AND THE GROUND LEVEL IN A SINGLE GAME |
| CN201229165Y (en) * | 2008-07-07 | 2009-04-29 | 东莞市特马电子有限公司 | Multifunctional digital display angle gauges |
| JP3179152U (en) * | 2012-08-06 | 2012-10-18 | 株式会社アルファ・オメガ | Music scale |
| CN104308659A (en) * | 2014-09-02 | 2015-01-28 | 常州宝菱重工机械有限公司 | Device and method for measuring part with right triangular cross section |
| CN204461399U (en) * | 2015-03-09 | 2015-07-08 | 昆山市杰尔电子科技有限公司 | A kind of digital display squareness detects tool |
-
2015
- 2015-03-09 CN CN201510102601.8A patent/CN105021161B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2819308B1 (en) * | 2001-01-08 | 2008-10-10 | Mario Bartolomeo | ESSENTIAL EQUER-LEVEL TOOL PERMITTING THE APLOMB, THE EQUERRAGE AND THE GROUND LEVEL IN A SINGLE GAME |
| CN201229165Y (en) * | 2008-07-07 | 2009-04-29 | 东莞市特马电子有限公司 | Multifunctional digital display angle gauges |
| JP3179152U (en) * | 2012-08-06 | 2012-10-18 | 株式会社アルファ・オメガ | Music scale |
| CN104308659A (en) * | 2014-09-02 | 2015-01-28 | 常州宝菱重工机械有限公司 | Device and method for measuring part with right triangular cross section |
| CN204461399U (en) * | 2015-03-09 | 2015-07-08 | 昆山市杰尔电子科技有限公司 | A kind of digital display squareness detects tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105021161A (en) | 2015-11-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201662384U (en) | Rotary-disk large-surface measuring device | |
| CN202013185U (en) | Detecting tool for ovality of outer spherical cage retainer | |
| CN102944163B (en) | Device and method for measuring profile tolerance of annular dovetail groove of any axial section | |
| CN105526885A (en) | Taper hole cone angle high precision detection method based on composite probe | |
| CN103465246B (en) | Spray groove labeling method and groove labelling apparatus | |
| CN105021161B (en) | A kind of digital display squareness detection jig | |
| CN102303266A (en) | Special protractor for taper hole | |
| CN109253710B (en) | Calibration method for zero error of A axis of REVO measuring head | |
| CN201247031Y (en) | End-face annular and trapezoid slots detection measuring tool | |
| CN204757949U (en) | Measurement device for main shaft developments gyration error is equipped in complete set gyration | |
| CN111060010A (en) | Parallel plane parameter on-machine measurement system and measurement method | |
| CN204461399U (en) | A kind of digital display squareness detects tool | |
| CN209116910U (en) | A kind of multi-functional form and position error measurement instrument | |
| CN203611148U (en) | Support test tooling | |
| CN110125980B (en) | Calibration device and calibration method for industrial robot repeated positioning precision measurement device | |
| CN202057279U (en) | Check tool for checking positions of cross points of bent axial leads | |
| CN202676060U (en) | Tool for position measuring of hole and face of connecting rod bolt | |
| CN203344035U (en) | Efficient three-dimensional measurement line-scribing machine | |
| CN106247906B (en) | A kind of profile overall size measurement tooling and measurement method | |
| CN206073881U (en) | A kind of logical detent plug rule of hole back gauge | |
| CN105057727A (en) | Positioning method for turning reference of train axle forging blank and system of positioning method | |
| CN203803923U (en) | Conversion and detection tool for finishing mill unit base mounting and positioning reference | |
| CN203719621U (en) | HSK taper comparing and measuring instrument | |
| CN104596465B (en) | For detecting feature exemplar and the method for three axle diamond lathe axial system errors | |
| CN202452942U (en) | Simple checking device for concentricity of push rod |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Suzhou City, Jiangsu province 215316 Yan Bridge in Yushan town of Kunshan City Hamamatsu Road No. 10 Fumin five Kunshan jety Electronic Technology Co. Ltd. Applicant after: KUNSHAN JET ELECTRONIC TECHNOLOGY CO., LTD. Address before: Suzhou City, Jiangsu province 215316 Yan Bridge in Yushan town of Kunshan City Hamamatsu Road No. 10 Fumin five Kunshan jety Electronic Technology Co. Ltd. Applicant before: KUNSHAN JER ELECTRONIC TECHNOLOGY CO., LTD. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |