CN110207625A - A kind of cathode plate flatness dynamic detection system and method - Google Patents
A kind of cathode plate flatness dynamic detection system and method Download PDFInfo
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- CN110207625A CN110207625A CN201910339362.6A CN201910339362A CN110207625A CN 110207625 A CN110207625 A CN 110207625A CN 201910339362 A CN201910339362 A CN 201910339362A CN 110207625 A CN110207625 A CN 110207625A
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- 238000001514 detection method Methods 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title abstract description 11
- 238000012360 testing method Methods 0.000 claims abstract description 18
- 239000011159 matrix material Substances 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims description 6
- 230000008021 deposition Effects 0.000 claims description 3
- 238000012886 linear function Methods 0.000 claims description 3
- 238000005457 optimization Methods 0.000 claims description 3
- 230000009897 systematic effect Effects 0.000 claims description 3
- 238000009826 distribution Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000001914 filtration Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/30—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a kind of cathode plate flatness dynamic detection system and methods, it mainly include laser generator, detection faces, front camera, side camera, laser generator is provided at face position immediately below detection face diagonal intersection point, for the dot matrix of one group of n*n to be incident upon detection faces, front camera is fixed on right above laser generator, laser generator and front camera are each attached on fixed link A, side camera is fixed on fixed link B, and the image information of acquisition is uploaded to industrial personal computer by data transmission channel by front camera and side camera.Process test problems are shaken when the invention has the benefit that solving cathode panel products high-speed cruising；The point bit distribution of detection is more intensive, and testing result is more accurate；It the performance condition of statistical product and can check online according to testing result in real time.
Description
Technical field
The present invention relates to the fields of cathode plate flatness detection technique, and in particular to a kind of cathode plate flatness dynamic detection
System and method.
Background technique
Existing stainless steel cathode plate flatness detection is mainly using 9 points of detections, using distance measuring sensor, in production to be detected
The surface certain distance of product installs 9 distance measuring sensors, passes through its flatness feelings of calculating analysis after the data acquisition of 9 sensors
Condition.Detection device is mounted in pipelining equipment, and product to be measured can shake when assembly line is run, and the speed of service is faster, is shaken
Amplitude is bigger, this equipment adapts to during low-speed running, but testing result and actual deviation are larger when high-speed cruising.And
And with the growth of product use time, the case where deformation, is also more complicated, and the testing conditions of 9 positions have been unable to ensure
Detection accuracy.Therefore it needs to develop a kind of cathode plate flatness dynamic detection system and method, accurately detects in high-speed cruising
Product to be measured.
Summary of the invention
It is an object of the invention to overcome the shortcomings of the prior art, and provide a kind of cathode plate flatness dynamic detection
System and method.
The object of the present invention is achieved by the following technical solutions: this cathode plate flatness dynamic detection system and
Method mainly includes laser generator, detection faces, front camera, side camera, detects the face immediately below face diagonal intersection point
Laser generator is provided at position, for the dot matrix of one group of n*n to be incident upon detection faces, front camera is fixed on laser hair
Right above raw device, laser generator and front camera are each attached on fixed link A, and side camera is fixed on fixed link B, front
The image information of acquisition is uploaded to industrial personal computer by data transmission channel by camera and side camera.
Further, the laser generator is arranged in immediately below detection face diagonal intersection point at the face position of 60mm.
Further, in the axial symmetry center line of the laser generator laser projection vertical direction and laser generator light
Plane Installation front camera where the center of source, and with laser generator angle at 45 °；In laser generator laser projection level side
To axial symmetry center line and laser generator light source center where Plane Installation side camera, and with laser generator at
45° angle.
Using the cathode plate flatness dynamic testing method of above-mentioned cathode plate flatness dynamic detection system, including it is below
Step:
1), laser generator is installed: the dot matrix of one group of n*n (n >=3) is incident upon by detection faces using a laser generator
On, laser generator is arranged in immediately below detection face diagonal intersection point at the face position of 60mm, mounting distanceWherein, α is the scattering angle of laser, and w is deposition width, and k is photo handling software minimum allowable range
Half and k≤h/2n, n are laser line number, and h is the plate face height in face to be detected；
2), install camera: camera and detection faces are installed at 15 °≤γ≤75 °, and calculating face to be detected allows swing angle
3) it, acquires and handles photograph: including the following steps:
A, the photograph of acquisition is uploaded to industrial personal computer by camera, and image processing software frame selects first of each group of line and last
One point is as datum mark；
B, each group of head and the tail two o'clock, which is connected, determines reference line；
C, except frame blanking datum mark so subpoint, 11 points of each line segment, point on the basis of head and the tail two o'clock, remaining
9 points are reference point；
D, reference point and the reference line at place do vertical line；
E, the pixel value of each section of vertical line of record and output and its corresponding position；
4), data processing: industrial personal computer receives the data of image processing software output and processing (being executed by C# program), if phase
The focus of machine is origin O, and basic zero plane is XY, and A point is the subpoint on zero plane, and C point is the reality for having deformation deviation face
Border subpoint；The vertical line that C point makees OA is crossed, intersection point B crosses the vertical line that C point makees absolute zero plane, and intersection point E, CE are practical inclined
From value；If the pixel value of BC be x, scale bar k, then the practical deviation value of CE be
5), practical calibration: include the following steps:
A, same board under test is selected, repeated detection simultaneously records its pixel value；
B, the calibrated bolck of one piece of 1mm thickness is installed on each point (removing datum mark) surface, and repeated detection simultaneously records its pixel
Value；
C, 30 B operations (conventional deviation does not exceed 30mm) is repeated, adds one piece of calibrated bolck every time；
D, the described point on coordinate system draws change curve, and discovery was all the linear function of origin, and slope is K value；
E, board under test, iteration optimization are replaced, until systematic error is within 3mm；
6) it, exports result: each group of gained of maximum value and its coordinate, the maximum value of whole and its coordinate is exported.
The invention has the benefit that
1, it solves to shake process test problems when product high-speed cruising；
2, the point bit distribution detected is more intensive, and testing result is more accurate；
3, it the performance condition of statistical product and can check online according to testing result in real time.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the laser dot-matrix schematic diagram in plate face to be detected and plate face.
Fig. 3 is front camera schematic view of the mounting position.
Fig. 4 is side camera schematic view of the mounting position.
Fig. 5 is that laser point amplifies and shifts theoretical formula schematic diagram onto.
Fig. 6 is detection schematic diagram of the invention.
Fig. 7 is testing process schematic diagram of the invention.
Description of symbols: laser generator 1, detection faces 2, front camera 3, side camera 4, industrial personal computer 5, fixed link
A6, fixed link B7, data transmission channel 8.
Specific embodiment
Below in conjunction with attached drawing, the present invention will be described in detail:
Embodiment: as shown in the picture, this cathode plate flatness dynamic detection system mainly includes laser generator 1, inspection
Survey face 2, front camera 3, side camera 4 are provided with laser generator at the face position immediately below 2 diagonal line intersection point of detection faces
1, for the dot matrix of one group of n*n to be incident upon detection faces 2, front camera 3 is fixed on right above laser generator 1, laser hair
Raw device 1 and front camera 3 are each attached on fixed link A6, and side camera 4 is fixed on fixed link B7, front camera 3 and side
The image information of acquisition is uploaded to industrial personal computer 5 by data transmission channel 8 by camera 4.
Preferably, the face position of 60mm immediately below 2 diagonal line intersection point of detection faces is arranged in the laser generator 1
Place.
Preferably, in the axial symmetry center line and laser generator 1 of the 1 laser projection vertical direction of laser generator
Plane Installation front camera 3 where light source center, and with the angle at 45 ° of laser generator 1；In 1 laser projection of laser generator
The axial symmetry center line and the Plane Installation side camera 4 where 1 light source center of laser generator of horizontal direction, and sent out with laser
The raw angle at 45 ° of device 1, it is ensured that image energy integrally all covers product.
Using the cathode plate flatness dynamic testing method of above-mentioned cathode plate flatness dynamic detection system, including it is below
Step:
1), laser generator is installed: the dot matrix of one group of n*n (n >=3) is incident upon by detection using a laser generator 1
2 on face (as shown in Figure 2), laser generator 1 is arranged in immediately below 2 diagonal line intersection point of detection faces at the face position of 60mm, peace
Fill distanceWherein, α is the scattering angle of laser, and w is deposition width, and k is photo handling software minimum allowable
The half and k≤h/2n, n of distance are laser line number, and h is the plate face height in face to be detected；
2), install camera: camera carries filtering functions, only allows light source to correspond to light wave band and passes through, camera and detection faces 2
It is installed at 15 °≤γ≤75 °, calculating face to be detected allows swing angle
3) it, acquires and handles photograph: including the following steps:
A, the photograph of acquisition is uploaded to industrial personal computer 5 by camera, and image processing software frame selects first of each group of line and most
The latter point is as datum mark, and the principle of frame choosing: photograph high region of phase on piece gray value after filtering can only be projection
Point (no permission wave band ray cast gray value is 0), software can describe the region, and the center in the Automatic-searching region automatically
Coordinate (similarly hereinafter) of the position as the point；
B, each group of head and the tail two o'clock, which is connected, determines reference line；
C, except frame blanking datum mark so subpoint, 11 points of each line segment, point on the basis of head and the tail two o'clock, remaining
9 points are reference point；
D, reference point and the reference line at place do vertical line；
E, the pixel value of each section of vertical line of record and output and its corresponding position；
4), data processing: industrial personal computer 5 receives the data of image processing software output and processing (being executed by C# program), examines
Plane where considering camera and laser point has angle, corresponding to the pixel value where each position and its actual distance value
Coefficient is not identical, if the focus of camera is origin O (as shown in Figure 5), basic zero plane is XY, and A point is the throwing on zero plane
Shadow point, C point are the practical subpoint for having deformation deviation face；The vertical line that C point makees OA is crossed, intersection point B crosses C point and makees absolute zero plane
Vertical line, intersection point E, CE are practical deviation value；If the pixel value of BC be x, scale bar k, then the practical deviation value of CE be
5), practical calibration: include the following steps:
A, same board under test is selected, repeated detection simultaneously records its pixel value；
B, the calibrated bolck of one piece of 1mm thickness is installed on each point (removing datum mark) surface, and repeated detection simultaneously records its pixel
Value；
C, 30 B operations (conventional deviation does not exceed 30mm) is repeated, adds one piece of calibrated bolck every time；
D, the described point on coordinate system draws change curve, and discovery was all the linear function of origin, and slope is K value；
E, board under test, iteration optimization are replaced, until systematic error is within 3mm；
6) it, exports result: each group of gained of maximum value and its coordinate, the maximum value of whole and its coordinate is exported, it is defeated
Result is divided into positive and negative out, indicates offset direction, and data are saved in the form of excel.
Testing principle: laser rays is projected in stainless steel plate face, and regardless of plate face, there are in camera perspective plate face concave or convex
Laser imaging in short transverse have the difference (as shown in Figure 6) of a △ H, this is calculated according to this difference software
Pixel value of the difference on picture, overhaul flow chart are as shown in Figure 7.
It is understood that it will be understood by those skilled in the art that being subject to technical solution of the present invention and inventive concept
It all should fall within the scope of protection of the appended claims of the present invention with replacement or change.
Claims (4)
1. a kind of cathode plate flatness dynamic detection system, it is characterised in that: mainly include laser generator (1), detection faces
(2), front camera (3), side camera (4) are provided with laser hair at the face position immediately below detection faces (2) diagonal line intersection point
Raw device (1), for the dot matrix of one group of n*n to be incident upon detection faces (2), front camera (3) is being fixed on laser generator (1) just
Top, laser generator (1) and front camera (3) are each attached on fixed link A (6), and side camera (4) is fixed on fixed link B
(7) on, the image information of acquisition is uploaded to industrial personal computer by data transmission channel (8) by front camera (3) and side camera (4)
(5)。
2. cathode plate flatness dynamic detection system according to claim 1, it is characterised in that: the laser generator
(1) it is arranged at the face position of detection faces (2) diagonal line intersection point underface 60mm.
3. cathode plate flatness dynamic detection system according to claim 1, it is characterised in that: in the laser generator
(1) Plane Installation front phase of the axial symmetry center line of laser projection vertical direction where with laser generator (1) light source center
Machine (3), and with laser generator (1) angle at 45 °；In the axial symmetry center line of laser generator (1) laser projection horizontal direction
With the Plane Installation side camera (4) where laser generator (1) light source center, and with laser generator (1) angle at 45 °.
4. a kind of detection method using cathode plate flatness dynamic detection system as described in claim 1, it is characterised in that:
Include the following steps:
1), laser generator is installed: the dot matrix of one group of n*n (n >=3) is incident upon by detection faces using a laser generator (1)
Upper (2), laser generator (1) setting is at the face position of detection faces (2) diagonal line intersection point underface 60mm, mounting distanceWherein, α is the scattering angle of laser, and w is deposition width, and k is photo handling software minimum allowable range
Half and k≤h/2n, n are laser line number, and h is the plate face height in face to be detected；
2), install camera: camera and detection faces (2) are installed at 15 °≤γ≤75 °, and calculating face to be detected allows swing angle
3) it, acquires and handles photograph: including the following steps:
A, camera uploads to the photograph of acquisition industrial personal computer (5), and image processing software frame selects first of each group of line and last
One point is as datum mark；
B, each group of head and the tail two o'clock, which is connected, determines reference line；
C, except frame blanking datum mark so subpoint, 11 points of each line segment, point on the basis of head and the tail two o'clock, remaining 9 points
For reference point；
D, reference point and the reference line at place do vertical line；
E, the pixel value of each section of vertical line of record and output and its corresponding position；
4), data processing: industrial personal computer (5) receives the data of image processing software output and processing, if the focus of camera is origin
O, basic zero plane are XY, and A point is the subpoint on zero plane, and C point is the practical subpoint for having deformation deviation face；Cross C point
Make the vertical line of OA, intersection point B crosses the vertical line that C point makees absolute zero plane, and intersection point E, CE are practical deviation value；If the picture of BC
Element value be x, scale bar k, then the practical deviation value of CE be
5), practical calibration: include the following steps:
A, same board under test is selected, repeated detection simultaneously records its pixel value；
B, the calibrated bolck of one piece of 1mm thickness is installed on each point (removing datum mark) surface, and repeated detection simultaneously records its pixel value；
C, 30 B operations are repeated, add one piece of calibrated bolck every time；
D, the described point on coordinate system draws change curve, and discovery was all the linear function of origin, and slope is K value；
E, board under test, iteration optimization are replaced, until systematic error is within 3mm；
6) it, exports result: each group of gained of maximum value and its coordinate, the maximum value of whole and its coordinate is exported.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910339362.6A CN110207625B (en) | 2019-04-25 | 2019-04-25 | System and method for dynamically detecting flatness of cathode plate |
| PCT/CN2019/110046 WO2020215616A1 (en) | 2019-04-25 | 2019-10-09 | Dynamic detection system and method for flatness of cathode plate |
| PCT/CN2019/118658 WO2020215703A1 (en) | 2019-04-25 | 2019-11-15 | Dynamic measurement system and method for flatness of cathode plate |
| ZA2021/04009A ZA202104009B (en) | 2019-04-25 | 2021-06-10 | System and method for dynamically detecting cathode plate flatness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910339362.6A CN110207625B (en) | 2019-04-25 | 2019-04-25 | System and method for dynamically detecting flatness of cathode plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110207625A true CN110207625A (en) | 2019-09-06 |
| CN110207625B CN110207625B (en) | 2021-05-04 |
Family
ID=67786323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910339362.6A Active CN110207625B (en) | 2019-04-25 | 2019-04-25 | System and method for dynamically detecting flatness of cathode plate |
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| Country | Link |
|---|---|
| CN (1) | CN110207625B (en) |
| WO (2) | WO2020215616A1 (en) |
| ZA (1) | ZA202104009B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608690A (en) * | 2019-10-09 | 2019-12-24 | 苏州思贝科自动化科技有限公司 | Flatness detection device |
| WO2020215703A1 (en) * | 2019-04-25 | 2020-10-29 | 三门三友科技股份有限公司 | Dynamic measurement system and method for flatness of cathode plate |
| CN112362305A (en) * | 2020-12-01 | 2021-02-12 | 郑州大学 | Method and system for detecting front and back surfaces of valve stem |
| CN112611345A (en) * | 2020-12-31 | 2021-04-06 | 上海富驰高科技股份有限公司 | Method for automatically detecting product flatness in metal powder metallurgy process |
| CN117128863A (en) * | 2023-10-27 | 2023-11-28 | 山东恩特机床有限公司 | Detection device for precision of machine tool slide rail |
| CN118189905A (en) * | 2024-03-13 | 2024-06-14 | 广东精信工程造价咨询有限公司 | Engineering monitoring system based on visual analysis |
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- 2019-10-09 WO PCT/CN2019/110046 patent/WO2020215616A1/en active Application Filing
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| US4978841A (en) * | 1989-08-24 | 1990-12-18 | Lasa Industries, Inc. | Automatic leveling system and a method of leveling a workpiece based on focus detection |
| CN104897065A (en) * | 2015-06-09 | 2015-09-09 | 河海大学 | Measurement system for surface displacement field of shell structure |
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| WO2020215703A1 (en) * | 2019-04-25 | 2020-10-29 | 三门三友科技股份有限公司 | Dynamic measurement system and method for flatness of cathode plate |
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| CN112362305A (en) * | 2020-12-01 | 2021-02-12 | 郑州大学 | Method and system for detecting front and back surfaces of valve stem |
| CN112611345A (en) * | 2020-12-31 | 2021-04-06 | 上海富驰高科技股份有限公司 | Method for automatically detecting product flatness in metal powder metallurgy process |
| CN117128863A (en) * | 2023-10-27 | 2023-11-28 | 山东恩特机床有限公司 | Detection device for precision of machine tool slide rail |
| CN117128863B (en) * | 2023-10-27 | 2024-02-27 | 山东恩特机床有限公司 | Detection device for precision of machine tool slide rail |
| CN118189905A (en) * | 2024-03-13 | 2024-06-14 | 广东精信工程造价咨询有限公司 | Engineering monitoring system based on visual analysis |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110207625B (en) | 2021-05-04 |
| WO2020215703A1 (en) | 2020-10-29 |
| WO2020215616A1 (en) | 2020-10-29 |
| ZA202104009B (en) | 2021-08-25 |
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Denomination of invention: A dynamic detection system and method for cathode plate flatness Granted publication date: 20210504 Pledgee: Three branches of the Industrial Commercial Bank of China Ltd. Pledgor: SANMEN SANYOU TECHNOLOGY Inc. Registration number: Y2024330001599 |