CN115672754A - Automatic image detection equipment and method for membrane electrode - Google Patents
Automatic image detection equipment and method for membrane electrode Download PDFInfo
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- CN115672754A CN115672754A CN202211187492.0A CN202211187492A CN115672754A CN 115672754 A CN115672754 A CN 115672754A CN 202211187492 A CN202211187492 A CN 202211187492A CN 115672754 A CN115672754 A CN 115672754A
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Abstract
The invention discloses an automatic image detection device and method for a membrane electrode. The invention can realize automatic visual detection of whether the front and back surfaces of the membrane electrode have appearance defects, and the invention adopts visual detection to replace manual detection to the membrane electrode so as to improve the detection efficiency and greatly reduce the occurrence of missed detection and false detection, thereby effectively ensuring the quality of the proton exchange membrane fuel cell; in addition, the air tightness detection device is used for carrying out air tightness detection on the membrane electrode so as to transfer the membrane electrode with unqualified air tightness detection to the first NG storage box, and the detection quality of the membrane electrode is further ensured.
Description
Technical Field
The invention relates to the technical field of membrane electrode detection, in particular to an automatic image detection device and method for a membrane electrode.
Background
The proton exchange membrane fuel cell is a power generation device for directly converting chemical energy into electric energy, has the characteristics of quick start, high energy density and environmental friendliness, and can be used as an ideal choice for replacing various fixed and mobile power supplies.
The core component of a pem fuel cell is the membrane electrode, which determines the performance, lifetime and cost of the pem fuel cell. However, some film electrodes and the front and/or back surfaces suffer from the following appearance defects: the carbon paper of the membrane electrode has the defects of black spots, cracks, breakage, unfilled corners and the like, and the transparent adhesive tape of the membrane electrode has the defects of bubbles, dislocation and the like. Therefore, after the membrane electrode is produced, the front surface and the back surface of the membrane electrode need to be subjected to appearance defect detection, and the existing method mainly depends on manual detection to detect whether the membrane electrode has appearance defects, namely, the membrane electrode is observed by human eyes, so that the manual detection has low efficiency and is easy to have the conditions of missed detection and false detection, and further the quality of the proton exchange membrane fuel cell is influenced. In addition, in the prior art, before the appearance defect detection is performed on the membrane electrode, the air tightness detection of the membrane electrode is not performed, and the appearance defect detection is also performed on the membrane electrode (NG product, namely unqualified product) with partial air tightness not meeting the requirement, so that the detection workload of the appearance defect is increased.
Disclosure of Invention
Technical problem to be solved
In view of the defects of the prior art, the invention provides an automatic image detection device and method for a membrane electrode, which can solve the technical problems.
(II) technical scheme
In order to solve the technical problem, the invention provides the following technical scheme: an automated image inspection apparatus for membrane electrodes, comprising: the air tightness detection device, the first moves and carries the device, a NG storage box, a vision camera device, a first adsorption platform, a second adsorption platform and tilting mechanism, the air tightness detection device sets up in the rear side of first adsorption platform, a NG storage box sets up in first adsorption platform, between the air tightness detection device, it is close to the air tightness detection device that first moves carries the device, first adsorption platform sets up to move, second adsorption platform and first adsorption platform interval set up from beginning to end, tilting mechanism sets up in first adsorption platform, between the second adsorption platform, a vision camera device sets up in the top of first adsorption platform, a vision camera device sets up in the top of second adsorption platform, a vision camera device is used for shooing the positive image that is located membrane electrode on first adsorption platform, a vision camera device is used for shooing the reverse image that is located membrane electrode on the second adsorption platform.
Preferably, the first visual camera device includes a first visual camera and a first light source, and the first light source is horizontally disposed below the first visual camera.
Preferably, the first vision camera device further comprises a second light source, and the second light source is obliquely arranged below the first vision camera.
Preferably, the first visual camera device further comprises a second visual camera, and the first visual camera and the second visual camera are arranged at left and right intervals.
Preferably, the first adsorption platform and the second adsorption platform are both provided with backlight sources.
Preferably, the automatic image detection equipment for the membrane electrode further comprises a thickness measuring device and a third adsorption platform, wherein the third adsorption platform is arranged on the rear side of the air tightness detection device, and the thickness measuring device is arranged above the third adsorption platform.
Preferably, the automatic image detection equipment of the membrane electrode further comprises a code spraying head, a code sweeping gun and a fourth adsorption platform, wherein the fourth adsorption platform is arranged on the rear side of the third adsorption platform, and the code spraying head and the code sweeping gun are arranged above the fourth adsorption platform.
Preferably, the automated image inspection equipment for the membrane electrode further comprises a second transfer device, and the second transfer device is arranged close to the third adsorption platform and the fourth adsorption platform.
Preferably, the automated image inspection equipment for the membrane electrode further comprises a second NG storage box, and the second NG storage box is arranged on the front side of the second adsorption platform.
In order to solve the above technical problem, the present invention provides another technical solution as follows: an automated image detection method of a membrane electrode, comprising: the first transfer device transfers the membrane electrode to the air tightness detection device for air tightness detection; the first transfer device transfers the membrane electrode with unqualified air tightness detection to the first NG storage box, or the first transfer device transfers the membrane electrode with qualified air tightness detection to the first adsorption platform; a first vision camera device shoots a front image of a membrane electrode positioned on a first adsorption platform; the membrane electrode on the first adsorption platform is adsorbed and overturned by the overturning mechanism and is transferred to the second adsorption platform; a second vision camera device shoots a reverse image of the membrane electrode positioned on the second adsorption platform; and carrying out visual detection on the front image and the back image of the membrane electrode.
(III) advantageous effects
Compared with the prior art, the invention provides the automatic image detection equipment and method of the membrane electrode, which have the following beneficial effects: the membrane electrode on the first adsorption platform is overturned and transferred to the second adsorption platform through the overturning mechanism, the front image of the membrane electrode on the first adsorption platform is shot through the first visual camera device, and the back image of the membrane electrode on the second adsorption platform is shot through the second visual camera device, so that whether appearance defects exist on the front and the back of the membrane electrode is automatically and visually detected; in addition, the air tightness detection device and the first NG storage box are arranged on the rear side of the first adsorption platform, so that air tightness detection is carried out on the membrane electrode before appearance defect detection is carried out, the membrane electrode with unqualified air tightness detection is transferred to the first NG storage box, the detection workload of the appearance defects is reduced, and the appearance defect detection efficiency is improved.
Drawings
FIG. 1 is a perspective view of an automated image inspection apparatus for a membrane electrode according to the present invention;
fig. 2 is a perspective view of the air-tightness detection device, the first transfer device, the first NG storage box and the first adsorption platform according to the present invention;
FIG. 3 is a perspective view of a first visual camera device, a second visual camera device, a first adsorption platform, a second adsorption platform, a turnover mechanism and a fixing frame according to the present invention;
FIG. 4 is a perspective view of the fixing frame and the first vision camera device of the present invention;
FIG. 5 is a perspective view of a first vision camera device of the present invention;
FIG. 6 is a perspective view of the first adsorption platform, the second adsorption platform and the turnover mechanism of the present invention;
FIG. 7 is a perspective view of the canting mechanism of the present invention;
FIG. 8 is a perspective view of the thickness measuring device, the third adsorption platform, the spraying head, the code scanning gun, the fourth adsorption platform and the second transfer device of the present invention;
fig. 9 is a perspective view of the thickness measuring device, the code spraying head and the code scanning gun of the invention.
The reference numbers in the figures are: the device comprises a first visual camera device, a second visual camera device, a first adsorption platform, a second adsorption platform, a 4-5 turnover mechanism, a fixed frame, a 7 membrane electrode, an 81 air tightness detection device, a 82 first transfer device, a 83 first NG storage box, a 84 thickness measurement device, an 85 third adsorption platform, a 86 spraying port, a 87 code scanning gun, a 88 fourth adsorption platform, a 89 second transfer device, a 11 first visual camera, a 12 first light source, a 13 second light source, a 14 second visual camera, a 15X-axis module, a 16 fixed plate, a 17 first Y-axis module, a 51 base, a 52 second Y-axis module, a 53 third Y-axis module, a 54 moving frame, a 55 sliding block, a 56 first air cylinder, a 57 second air cylinder, a 58 first suction disc, a 59 second suction disc, a 510 motor and a 511 turnover rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The present invention provides an automated image inspection apparatus for a membrane electrode, comprising: the air tightness detection device 81, the first transfer device 82, the first NG storage box 83, the first vision camera device 1, the second vision camera device 2, the first adsorption platform 3, the second adsorption platform 4, and the turnover mechanism 5. The air tightness detection device 81 is arranged at the rear side of the first adsorption platform 3, the first NG storage box 83 is arranged on the first adsorption platform 3 and between the air tightness detection devices 81, the first transfer device 82 is close to the air tightness detection device 81, the first adsorption platform 3 is arranged, the second adsorption platform 4 and the first adsorption platform 3 are arranged at the front and the back at intervals, the turnover mechanism 5 is arranged on the first adsorption platform 3 and between the second adsorption platforms 4, the first visual camera device 1 is arranged above the first adsorption platform 3, the second visual camera device 2 is arranged above the second adsorption platform 4, the first visual camera device 1 is used for shooting front images of the membrane electrode 7 on the first adsorption platform 3, and the second visual camera device 2 is used for shooting back images of the membrane electrode 7 on the second adsorption platform 4. Preferably, the first NG storage bin 83 is disposed on the linear slide module to enable movement thereof.
The invention also provides an automatic image detection method of the membrane electrode, which comprises the following steps: the first transfer device 82 transfers the membrane electrode 7 to the air tightness detection device 81 for air tightness detection; the first transfer device 82 transfers the membrane electrode with unqualified air tightness detection to the first NG storage box 83, or the first transfer device 82 transfers the membrane electrode with qualified air tightness detection to the first adsorption platform 3; the first vision camera device 1 shoots a front image of the membrane electrode positioned on the first adsorption platform 3; the turnover mechanism 5 adsorbs and overturns the membrane electrode on the first adsorption platform 3 and transfers the membrane electrode to the second adsorption platform 4; the second vision camera device 2 shoots a reverse image of the membrane electrode positioned on the second adsorption platform 4; and carrying out visual detection on the front image and the back image of the membrane electrode.
It is to be understood that the first adsorption stage 3 is for adsorbing the reverse side of the membrane electrode so that the obverse side of the membrane electrode is opposed to the first visual camera device 1; the second adsorption platform 4 is used for adsorbing the front side of the membrane electrode so that the back side of the membrane electrode is opposite to the second vision camera device 2. Specifically, the first visual camera device 1 and the second visual camera device 2 each include a CCD visual camera, and the CCD is a short for a charge coupled device (charge coupled device) that can convert light rays into electric charges and store and transfer the electric charges, and can also take out the stored electric charges to change the voltage; the photosensitive area of CCD has two kinds of one-dimensional linear array and two-dimensional area array, which are corresponding to linear array (linear scanning) camera and area array (area scanning) camera.
The vision detection, that is, the image recognition, may be implemented by transmitting the membrane electrode images captured and acquired by the first vision camera device and the second vision camera device to an industrial personal computer, where the industrial personal computer is installed with a CCD vision software system, and the membrane electrode images are visually detected by the CCD vision software system, that is, the images are subjected to feature extraction and feature classification.
Preferably, the number of the air tightness detecting devices 81 is plural to improve the detecting efficiency, and the present invention may adopt the existing air tightness detecting device without being limited too much. The first transfer device 82 is provided with a suction cup which can move back and forth and lift up and down so as to transfer the membrane electrode.
Specifically, in the present embodiment, the first vision camera device 1 includes a first vision camera 11, a first light source 12, a second light source 13, and a second vision camera 14, wherein the first light source 12 is horizontally disposed below the first vision camera 11, the second light source 13 is obliquely disposed below the first vision camera 11, and the first vision camera 11 and the second vision camera 14 are disposed at left and right intervals. In addition, the first vision camera device 1 further includes an X-axis module 15 and a fixing plate 16, the fixing plate 16 is disposed on the X-axis module 15, and the first vision camera 11, the second vision camera 14, the first light source 12 and the second light source 13 are disposed on the fixing plate 16. Further, the first vision camera apparatus 1 of the present embodiment further includes a first Y-axis module 17, the first Y-axis module 17 is disposed on the fixing plate 16, and the second vision camera 14 is disposed on the first Y-axis module 17. Preferably, the first vision camera 11 is a line camera; the second vision cameras 14 are area-array cameras, and the number of the second vision cameras 14 in the first vision camera device is preferably two; the first light source 12 is preferably a coaxial light source; the second light source 13 is preferably a linear light source.
In this embodiment, the X-axis module 15 may drive the first visual camera 11, the second visual camera 14, the first light source 12, and the second light source 13 to move left and right; the first Y-axis module 17 can drive the second vision camera 14 to move back and forth. Specifically, the front side of the membrane electrode 7 is photographed by matching the first vision camera 11 and the first light source 12 to detect whether the front side has appearance defects such as carbon paper black spots, carbon paper cracks, carbon paper breakage, carbon paper corner defects and the like; specifically, the front side of the membrane electrode 7 is photographed by the cooperation of the first vision camera 11 and the second light source 13, so as to detect whether the front side has appearance defects such as bubbles and dislocation of the transparent adhesive tape.
Preferably, the first adsorption platform 3 and the second adsorption platform 4 are both provided with backlight sources. The second vision camera 14 and the backlight source of the first adsorption platform 3 are matched to shoot four corners of the front surface of the membrane electrode, so as to detect whether the appearance defects of carbon paper dislocation exist at the four corners.
In the present embodiment, the first visual camera apparatus 1 and the second visual camera apparatus 2 have the same configuration. The automatic image detection equipment for the membrane electrode further comprises a fixing frame 6, and the second visual camera device 2 and the first visual camera device 1 are respectively arranged on the front side and the rear side of the fixing frame 6.
In addition, the turnover mechanism 5 specifically includes two bases 51, two second Y-axis modules 52, two third Y-axis modules 53, a moving frame 54, two sliding blocks 55, a first air cylinder 56, a second air cylinder 57, a first suction cup 58, a second suction cup 59, a motor 510, and a turnover rod 511, the first adsorption platform 3 and the second adsorption platform 4 are located between the two bases 51, one of the second Y-axis modules 52 and the third Y-axis modules 53 is arranged on one of the bases 51 at a left-right interval, the other of the second Y-axis modules 52 and the third Y-axis modules 53 is arranged on the other of the bases 51 at a left-right interval, two sides of the moving frame 54 are respectively arranged on the two second Y-axis modules 52, the two sliding blocks 55 are respectively arranged on the two third Y-axis modules 53, the first air cylinder 56 is arranged on the moving frame 54, the first air cylinder 56 is connected with the first suction cup 58, the turnover rod 511 is arranged on the two sliding blocks 55, the motor 510 is connected with one end of the turnover rod 511, the second air cylinder 57 is arranged on the turnover rod, and the second air cylinder 57 is connected with the second suction cup 59.
The working principle of the turnover mechanism 5 is as follows: the second Y-axis module 52 drives the moving frame 54 to move back and forth, and the first air cylinder 56 drives the first sucker 58 to descend so as to adsorb the membrane electrode 7 on the first adsorption platform 3; further, the third Y-axis module 53 drives the turning rod 511 to move back and forth, and the motor 510 drives the turning rod 511 to turn so that the second suction cup 59 is opposite to the reverse side of the membrane electrode on the first suction cup 58; further, the second cylinder 57 drives the second suction cup 59 to suck the reverse side of the membrane electrode; the turning bar 511 turns over so that the front face of the membrane electrode of the second suction cup 59 is opposed to the second adsorption platform 4; finally, the second air cylinder 57 drives the second suction cup 59 to descend to place the membrane electrode on the second adsorption platform 4, so that the second adsorption platform 4 adsorbs the front surface of the membrane electrode, thereby completing the turnover and transfer of the membrane electrode.
In addition, the automated image inspection equipment for the membrane electrode of the present invention may further include a thickness measuring device 84 and a third adsorption platform 85, the third adsorption platform 85 is disposed at the rear side of the air tightness inspection device 81, the thickness measuring device 84 is disposed above the third adsorption platform 85, the thickness of the membrane electrode on the third adsorption platform 85 is measured by the thickness measuring device 84, and the thickness measuring device 84 may specifically adopt an existing contact thickness gauge. The automated image detection equipment for the membrane electrode can also comprise a code spraying head 86, a code scanning gun 87 and a fourth adsorption platform 88, wherein the fourth adsorption platform 88 is arranged at the rear side of the third adsorption platform 85, the code spraying head 86 and the code scanning gun 87 are arranged above the fourth adsorption platform 88, the code spraying head 86 is used for spraying codes to the membrane electrode on the fourth adsorption platform 88, the code scanning gun 87 is used for scanning the codes to the membrane electrode on the fourth adsorption platform 88, and preferably, the code spraying head 86 and the code scanning gun 87 can move left and right and back and forth.
Preferably, the automated image inspection equipment for a membrane electrode of the present invention further includes a second transfer device 89, the second transfer device 89 is disposed near the third adsorption platform 85 and the fourth adsorption platform 88, and the membrane electrode on the fourth adsorption platform 88, on which code spraying and code scanning operations are completed, is transferred to the third adsorption platform 85 by the second transfer device 89, so as to measure the thickness of the membrane electrode. The first transfer device 82 is used for transferring the membrane electrode on the third adsorption platform 85 to the air tightness detection device 81 for air tightness detection.
In addition, the automated image inspection equipment for the membrane electrode of the invention can also comprise a second NG storage box which is arranged at the front side of the second adsorption platform 4 and is used for storing the membrane electrode with unqualified appearance defects.
Compared with the prior art, the invention provides the automatic image detection equipment and method of the membrane electrode, which have the following beneficial effects: the membrane electrode on the first adsorption platform is overturned and transferred to the second adsorption platform through the overturning mechanism, the front image of the membrane electrode on the first adsorption platform is shot through the first visual camera device, and the back image of the membrane electrode on the second adsorption platform is shot through the second visual camera device, so that whether appearance defects exist on the front and the back of the membrane electrode is automatically and visually detected; in addition, the air tightness detection device and the first NG storage box are arranged on the rear side of the first adsorption platform, so that air tightness detection is carried out on the membrane electrode before appearance defect detection is carried out, the membrane electrode with unqualified air tightness detection is transferred to the first NG storage box, the detection workload of the appearance defects is reduced, and the appearance defect detection efficiency is improved.
It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. An automated image inspection apparatus for a membrane electrode, comprising: the air tightness detection device is arranged on the rear side of the first adsorption platform, the first NG storage box is arranged between the first adsorption platform and the air tightness detection device, the first transfer device is arranged close to the air tightness detection device and the first adsorption platform, the second adsorption platform and the first adsorption platform are arranged at a front-back interval, the turnover mechanism is arranged between the first adsorption platform and the second adsorption platform, the first vision camera device is arranged above the first adsorption platform, the second vision camera device is arranged above the second adsorption platform, the first vision camera device is used for shooting a front image of a membrane electrode on the first adsorption platform, and the second vision camera device is used for shooting a back image of a membrane electrode on the second adsorption platform.
2. The automated image inspection apparatus of a membrane electrode according to claim 1, characterized in that: the first vision camera device comprises a first vision camera and a first light source, and the first light source is horizontally arranged below the first vision camera.
3. The automated image inspection apparatus for a membrane electrode according to claim 2, characterized in that: the first vision camera device further comprises a second light source which is obliquely arranged below the first vision camera.
4. The automated image inspection apparatus of a membrane electrode according to claim 3, characterized in that: the first visual camera device further comprises a second visual camera, and the first visual camera and the second visual camera are arranged at left and right intervals.
5. The automated image inspection apparatus of a membrane electrode according to claim 1, characterized in that: the first adsorption platform and the second adsorption platform are both provided with backlight sources.
6. The automated image inspection apparatus for a membrane electrode according to claim 1, characterized in that: still include thickness measuring device and third adsorption platform, third adsorption platform set up in gas tightness detection device's rear side, thickness measuring device set up in third adsorption platform's top.
7. The automated image inspection apparatus for a membrane electrode according to claim 6, characterized in that: still including spouting the pier, sweeping yard rifle and fourth adsorption platform, fourth adsorption platform set up in the rear side of third adsorption platform, spout the pier and sweep yard rifle set up in the top of fourth adsorption platform.
8. The automated image inspection apparatus for a membrane electrode according to claim 7, characterized in that: the second transfer device is arranged close to the third adsorption platform and the fourth adsorption platform.
9. The automated image inspection apparatus for a membrane electrode according to claim 1, characterized in that: still include the second NG storage case, the second NG storage case set up in the front side of second adsorption platform.
10. An automated image detection method for a membrane electrode, comprising:
the first transfer device transfers the membrane electrode to the air tightness detection device for air tightness detection;
the first transfer device transfers the membrane electrode with unqualified air tightness detection to a first NG storage box, or transfers the membrane electrode with qualified air tightness detection to a first adsorption platform;
a first vision camera device shoots a front image of the membrane electrode on the first adsorption platform;
the membrane electrode on the first adsorption platform is adsorbed and overturned by the overturning mechanism and is transferred to the second adsorption platform;
a second vision camera device shoots a reverse image of the membrane electrode on the second adsorption platform;
and carrying out visual detection on the front image and the back image of the membrane electrode.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116329129A (en) * | 2023-04-14 | 2023-06-27 | 杭州金山仪表阀业有限公司 | Multifunctional valve detection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116329129A (en) * | 2023-04-14 | 2023-06-27 | 杭州金山仪表阀业有限公司 | Multifunctional valve detection device |
| CN116329129B (en) * | 2023-04-14 | 2024-01-23 | 杭州金山仪表阀业有限公司 | Multifunctional valve detection device |
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