CN110412043A - A kind of welding testing agency and welding detection method - Google Patents
A kind of welding testing agency and welding detection method Download PDFInfo
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- CN110412043A CN110412043A CN201910810065.5A CN201910810065A CN110412043A CN 110412043 A CN110412043 A CN 110412043A CN 201910810065 A CN201910810065 A CN 201910810065A CN 110412043 A CN110412043 A CN 110412043A
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- 238000003466 welding Methods 0.000 title claims abstract description 80
- 238000001514 detection method Methods 0.000 title claims abstract description 32
- 238000012360 testing method Methods 0.000 title claims abstract description 23
- 238000010191 image analysis Methods 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 15
- 229910000679 solder Inorganic materials 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 206010054949 Metaplasia Diseases 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000015689 metaplastic ossification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
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- Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Secondary Cells (AREA)
Abstract
The present invention welds detection field, provides a kind of welding testing agency and welding detection method, which includes battery core conveying device, and battery core conveying device is used to fix battery core, and multiple battery cores after welding are delivered to the predeterminated position of each battery core respectively；Image acquiring device, comprising: slide unit, camera and camera mounting bracket；Camera is movably arranged on slide unit by camera mounting bracket, so that camera in moving process is corresponding in turn to the predeterminated position of an at least battery core, to obtain the image of each battery core respectively；Image analysis apparatus, image analysis apparatus are handled according to the image of each battery core, to judge the welding quality of battery core.The present invention is arranged by the position that mobile camera enables camera to correspond to battery core, the comprehensive corresponding image information of acquisition battery core, single camera is set to obtain the image of multiple battery cores simultaneously, enable welding testing agency quickly to judge the welding situation of battery core by image analysis apparatus, the efficiency of welding detection is substantially improved.
Description
Technical field
The present invention relates to welding detection field, in particular to a kind of welding testing agency and welding detection method.
Background technique
With the rapid development of electronic technology, electronic product using more and more extensive, battery industry is also to develop therewith,
Gradually form industrialization.
Currently, lithium battery is generally made of the part such as battery core, battery cover board and shell, in the automatic metaplasia for carrying out lithium battery
It during production, needs to weld the tab and battery cover board of battery core, battery cover board is loaded with the external world again or charging circuit
Connection, the tab of battery core is protected with this.In the prior art, it after the tab of battery core and battery cover board welding, requires pair
The coupling part of cell polar ear and battery cover board carries out welding detection, and the connection of the tab and battery cover board of battery core is judged with this
Partial connection makes to meet overcurrent requirement.
But in existing deterministic process, camera can only obtain the image of fixed position, it is difficult to while to multiple battery cores
Welding situation is judged that efficiency is lower, and due to that can not move, camera can not carry out welding detection in all directions, it is difficult to right
The corresponding each situation of battery core welding is judged.
Summary of the invention
(1) technical problems to be solved
In view of above-mentioned technological deficiency and application demand, the application proposes a kind of welding testing agency and welding detection method,
It is intended to put position entirely and obtains the image of battery core, while promoting the efficiency of welding detection.
(2) technical solution
To solve the above problems, the present invention provides a kind of welding testing agency, comprising: include:
Battery core conveying device, the battery core conveying device are divided for fixing battery core, and by multiple battery cores after welding
It is not delivered to the predeterminated position of each battery core；
Image acquiring device, described image acquisition device include: slide unit, camera and camera mounting bracket；The camera is logical
It crosses the camera mounting bracket to be movably arranged on the slide unit, camera described in moving process is made to be corresponding in turn at least one
The predeterminated position of the battery core, to obtain the image of each battery core respectively；
Image analysis apparatus, described image analytical equipment are electrically connected with described image acquisition device, according to each battery core
Image handled, to judge the welding quality of the battery core.
Further, multiple battery cores include: the first battery core and the second battery core being arranged successively；The camera can lead to
The slide unit is crossed to be moved to while the first predeterminated position corresponding with first battery core and second battery core.
Further, multiple battery cores further include: be arranged successively with first battery core and second battery core
Three battery cores and the 4th battery core；The camera can be moved to by the slide unit and meanwhile with the third battery core and it is described 4th electricity
Corresponding second predeterminated position of core.
Further, different installation positions are corresponded in the camera mounting bracket be equipped at intervals with multiple mounting holes, the camera
It is fixed in the camera mounting bracket by any mounting hole.
Further, further includes: light source and light source bracket；The light source is arranged on the light source bracket, the light source
The predeterminated position setting of the corresponding battery core
To solve the above problems, the welding detection method includes as follows the present invention also provides a kind of welding detection method
Step:
Step S1: the default position of each battery core is delivered to by battery core conveying device and by multiple battery cores after welding
It sets；
Step S2: camera is moved on slide unit by camera mounting bracket, is corresponding in turn to camera in moving process at least
The predeterminated position of one battery core, to obtain the image of each battery core respectively；
Step S3: image analysis apparatus is handled according to the image of each battery core, to judge the welding quality of battery core.
Further, the step S3 includes sub-step: image analysis apparatus handles the image of battery core, obtains the figure of battery core
Battery cover board leaks out the gray value in region as in, judges whether core is anti-loaded；If leaking out the gray value in region in positive core pair
When in the tonal range answered, then this end of core is anode；If leaking out the gray value in region not in the corresponding gray scale of positive core
When in range, then this end of core is cathode.
Further, the step S3 includes sub-step: image analysis apparatus handles the image of battery core, obtains the figure of battery core
The gray value of battery cover board, judges whether battery cover board is anti-loaded as in；If the gray value of battery cover board is in positive battery cover board pair
When in the tonal range answered, then the battery cover board should be mounted on anode；If the gray value of battery cover board is not in positive battery cover board
When in corresponding tonal range, then the battery cover board should be mounted on cathode.
Further, the step S3 includes sub-step: image analysis apparatus handles the image of battery core, obtains the figure of battery core
The gray value of battery cover board as in captures sunk area on battery cover board by the gray value of battery cover board, passes through gray difference
Judge whether sunk area has solder joint, determines the number of welds of battery core, judge whether solder skip.
Further, the step S3 includes sub-step: image analysis apparatus handles the image of battery core, obtains the figure of battery core
The gray value of battery cover board as in captures sunk area on battery cover board by the gray value of battery cover board, passes through gray difference
Judge the bond pad locations of sunk area, then compared with pre-set image, judges whether to be partially welded.
(3) beneficial effect
The present invention provides a kind of welding testing agency and welding detection method, which is made by moving camera
Camera can correspond to the position setting of battery core, the comprehensive corresponding image information of acquisition battery core, while enable single camera
The image for obtaining multiple battery cores enables welding testing agency quickly to judge the welding feelings of battery core by image analysis apparatus
The efficiency of welding detection is substantially improved in condition.
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 this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structural schematic diagram of welding testing agency provided in an embodiment of the present invention；
Fig. 2 is the flow diagram of welding detection method provided in an embodiment of the present invention；
Wherein, 1, battery core；2, image acquiring device；3, light source；4, light source bracket；21, slide unit；22, camera；23, camera
Mounting bracket.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
The embodiment of the present invention provides a kind of welding testing agency, as shown in Figure 1, comprising: battery core conveying device, battery core conveying
Multiple battery cores 1 after welding are delivered to the predeterminated position of each battery core 1 for fixing battery core 1 by device respectively.Image obtains dress
2 are set, image acquiring device 2 includes: slide unit 21, camera 22 and camera mounting bracket 23.Camera 22 passes through camera mounting bracket 23
It is movably arranged on slide unit 21, camera 22 in moving process is made to be corresponding in turn to the predeterminated position of an at least battery core 1, with respectively
Obtain the image of each battery core 1.Image analysis apparatus, image analysis apparatus are electrically connected with image acquiring device 2, according to each battery core 1
Image handled, to judge the welding quality of battery core 1.
Wherein, slide unit 21 is equipped with sliding slot, and camera mounting bracket 23 is equipped with the slide plate of corresponding sliding slot, and camera 22 passes through camera
Mounting bracket 23 extending direction can be slided along the chute.
It welds in testing agency's detection process, first passes through battery core conveying device and be delivered to multiple battery cores 1 after welding respectively
The predeterminated position of battery core 1.By camera mounting bracket 23 on slide unit 21 mobile camera 22, make in moving process camera 22 successively
The predeterminated position of a corresponding at least battery core 1, to obtain the image of each battery core 1 respectively.Image analysis apparatus is according to the figure of each battery core 1
As being handled, to judge the welding quality of battery core 1.
The embodiment of the present invention provides a kind of welding testing agency, which enables camera by mobile camera
The position setting of corresponding battery core, the comprehensive corresponding image information of acquisition battery core, while it is multiple so that single camera is obtained
The image of battery core enables welding testing agency quickly to judge the welding situation of battery core by image analysis apparatus, substantially mentions
Rise the efficiency of welding detection.
It based on the above embodiment, in a preferred embodiment, can as shown in Figure 1, to simplify the process of welding detection
Two battery cores are detected simultaneously by single camera 22.Such as multiple battery cores 1 include: the first battery core being arranged successively and the second electricity
Core.Camera 22 can be moved to by slide unit 21 while the first predeterminated position corresponding with the first battery core and the second battery core, with same
When obtain the image of the first battery core and the second battery core.
Further, multiple battery cores further include: the third battery core that is arranged successively with the first battery core and the second battery core and
4th battery core.Camera 22 can be moved to by slide unit 21 while the first default position corresponding with the first battery core and the second battery core
It sets, and camera 22 can be moved to by slide unit 21 while the second predeterminated position corresponding with third battery core and the 4th battery core,
To obtain the image of the first battery core, the second battery core, third battery core and the 4th battery core.
In the present embodiment, different installation positions are corresponded in camera mounting bracket 23 and are equipped at intervals with multiple mounting holes, camera 22 can
It is fixed in camera mounting bracket 23 by any mounting hole.In the present embodiment, the welding testing agency further include: 3 He of light source
Light source bracket 4.Light source is source of parallel light, and the plane constituted with multiple battery cores 1 is arranged in parallel.Light source 3 is mobilizable to be arranged in light
On source bracket 4, by adjusting the position of light source 3, makes the predeterminated position setting of the corresponding battery core 1 of light source 3, enable light source 3 same
When irradiate each battery core 1.Wherein, to avoid light source 3 from impacting battery core correspondence image, source of parallel light is can be selected in light source 3.
Wherein, light source bracket 4 includes: to determine strut and movable branching rod.Determine strut to be vertically arranged on the ground.Movable branching rod hangs down
Directly with determine strut, movable branching rod is mobilizable along the vertical direction to be arranged on determining strut.Light source bracket further include: buckle；Light source 3
It is arranged on movable branching rod by buckle.
It welds in testing agency's detection process, first passes through 1 conveying device of battery core and be delivered to multiple battery cores 1 after welding respectively
The predeterminated position of battery core 1.The position of light source 3 is adjusted by light source bracket 4, opens light source 3.By camera mounting bracket 23 in cunning
Mobile camera 22 on platform 21 makes camera 22 in moving process be corresponding in turn to the predeterminated position of an at least battery core 1, each to obtain respectively
The image of battery core 1.Image analysis apparatus is handled according to the image of each battery core 1, to judge the welding quality of battery core 1.
The embodiment of the invention also provides a kind of welding detection method, the welding detection method by welding testing agency come
Welding detection is carried out, which includes: battery core conveying device, and battery core conveying device will be welded for fixing battery core 1
Multiple battery cores 1 after connecing are delivered to the predeterminated position of each battery core 1 respectively.Image acquiring device 2, image acquiring device 2 include: cunning
Platform 21, camera 22 and camera mounting bracket 23.Camera 22 is movably arranged on slide unit 21 by camera mounting bracket 23, is made
Camera 22 is corresponding in turn to the predeterminated position of an at least battery core 1 in moving process, to obtain the image of each battery core 1 respectively.Image point
Analysis apparatus, image analysis apparatus are electrically connected with image acquiring device 2, are handled according to the image of each battery core 1, to judge battery core
1 welding quality.
As shown in Fig. 2, the welding detection method includes the following steps:
Step S1: multiple battery cores after welding are delivered to the predeterminated position of each battery core by battery core conveying device.
Step S2: camera is moved on slide unit by camera mounting bracket, is corresponding in turn to camera in moving process at least
The predeterminated position of one battery core, to obtain the image of each battery core respectively.
Step S3: image analysis apparatus is handled according to the image of each battery core, to judge the welding quality of battery core.
In the present embodiment, during the welding quality for judging battery core, can be used for judging whether the core of battery core is anti-loaded.Tool
Body, image analysis apparatus handles the image of battery core, obtains the gray value that battery cover board in the image of battery core leaks out region, judgement
Whether core is anti-loaded.If leak out the gray value in region in the corresponding tonal range of positive core, this end of core is positive
Pole.If leak out the gray value in region not in the corresponding tonal range of positive core, this end of core is cathode.If before this
Shooting is the image of battery core cathode, if leak out the gray value in region in the corresponding tonal range of positive core, rolls up
Core is anti-loaded.If leak out the gray value in region not in the corresponding tonal range of positive core, core is not anti-loaded.
Under normal circumstances, the core meeting aluminium of battery core anode, the core of battery core cathode can select brass.Therefore, if leakage
When the gray value in region is more than in the corresponding tonal range of positive core out, that is, it can determine whether that this end of core is cathode, combining
The position of the image of acquisition can judge whether core is anti-loaded.
In the present embodiment, during the welding quality for judging battery core, it may also be used for judge whether battery cover board is installed just
Really.Specifically, the image of image analysis apparatus processing battery core, obtains the gray value of battery cover board in the image of battery core, judges electricity
Whether pond cover board is anti-loaded.If the gray value of battery cover board is in the corresponding tonal range of positive battery cover board, the battery cover
Plate should be mounted on anode.If the gray value of battery cover board is not in the corresponding tonal range of positive battery cover board, the battery
Cover board should be mounted on cathode.Under normal circumstances, the battery cover board of cathode setting is equipped with aperture, and on the battery cover board of anode setting
There is no aperture, distinguishes the corresponding battery cover board gray scale of positive and negative anodes accordingly.
In the present embodiment, during the welding quality for judging battery core, it may also be used for judge whether solder skip.Specifically, scheme
As the image of analytical equipment processing battery core, the gray value of battery cover board in the image of battery core is obtained, the gray scale of battery cover board is passed through
Value captures sunk area on battery cover board, judges whether sunk area has solder joint by gray difference, determines the solder joint number of battery core
Amount, according to number of welds so that judge whether solder skip.In addition, the few possible subsequent tensile test of number of welds does not pass through, is subsequent
Current collecting plates overcurrent capability is insufficient.
In the present embodiment, during the welding quality for judging battery core, it may also be used for judge whether to be partially welded.Specifically, scheme
As the image of analytical equipment processing battery core, the gray value of battery cover board in the image of battery core is obtained, the gray scale of battery cover board is passed through
Value captures sunk area on battery cover board, and the bond pad locations of sunk area are judged by gray difference, there is bond pad locations gray value
There is difference, then compared with pre-set image, judges whether to be partially welded.
The present invention provides a kind of welding detection method, which enables camera to correspond to electricity by mobile camera
The position of core is arranged, the comprehensive corresponding image information of acquisition battery core, while single camera being enable to obtain multiple battery cores
Image enables welding testing agency quickly to judge the welding situation of battery core by image analysis apparatus, welding is substantially improved
The efficiency of detection.
The apparatus embodiments described above are merely exemplary, wherein described, unit can as illustrated by the separation member
It is physically separated with being or may not be, component shown as a unit may or may not be physics list
Member, it can it is in one place, or may be distributed over multiple network units.It can be selected according to the actual needs
In some or all of the modules achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creativeness
Labour in the case where, it can understand and implement.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of welding testing agency characterized by comprising
Battery core conveying device, the battery core conveying device are used to fix battery core, and multiple battery cores difference after welding are defeated
It send to the predeterminated position of each battery core；
Image acquiring device, described image acquisition device include: slide unit, camera and camera mounting bracket；The camera passes through institute
It states camera mounting bracket to be movably arranged on the slide unit, is corresponding in turn to camera described in moving process at least described in one
The predeterminated position of battery core, to obtain the image of each battery core respectively；
Image analysis apparatus, described image analytical equipment are electrically connected with described image acquisition device, according to the figure of each battery core
As being handled, to judge the welding quality of the battery core.
2. welding testing agency according to claim 1, which is characterized in that multiple battery cores include: to be arranged successively
First battery core and the second battery core；The camera can be moved to by the slide unit and meanwhile with first battery core and described second
Corresponding first predeterminated position of battery core.
3. welding testing agency according to claim 2, which is characterized in that multiple battery cores further include: with described
The third battery core and the 4th battery core that one battery core and second battery core are arranged successively；The camera can be mobile by the slide unit
To the second predeterminated position corresponding with the third battery core and the 4th battery core simultaneously.
4. welding testing agency according to claim 1, which is characterized in that corresponding not TongAn in the camera mounting bracket
It fills bit interval and is equipped with multiple mounting holes, the camera is fixed in the camera mounting bracket by any mounting hole.
5. welding testing agency according to claim 1, which is characterized in that further include: light source and light source bracket；The light
Source is mobilizable to be arranged on the light source bracket, and the light source corresponds to the predeterminated position setting of the battery core.
6. a kind of welding detection method, which is characterized in that the welding detection method includes the following steps:
Step S1: multiple battery cores after welding are delivered to the predeterminated position of each battery core by battery core conveying device；
Step S2: moving camera by camera mounting bracket on slide unit, and camera in moving process is made to be corresponding in turn at least one electricity
The predeterminated position of core, to obtain the image of each battery core respectively；
Step S3: image analysis apparatus is handled according to the image of each battery core, to judge the welding quality of battery core.
7. welding detection method according to claim 6, which is characterized in that the step S3 includes sub-step:
Image analysis apparatus handles the image of battery core, obtains the gray value that battery cover board in the image of battery core leaks out region, judgement
Whether core is anti-loaded；If leak out the gray value in region in the corresponding tonal range of positive core, this end of core is positive
Pole；If leak out the gray value in region not in the corresponding tonal range of positive core, this end of core is cathode.
8. welding detection method according to claim 6, which is characterized in that the step S3 includes sub-step:
Image analysis apparatus handles the image of battery core, obtains the gray value of battery cover board in the image of battery core, judges battery cover board
It is whether anti-loaded；If the gray value of battery cover board is in the corresponding tonal range of positive battery cover board, which should pacify
Mounted in anode；If the gray value of battery cover board is not in the corresponding tonal range of positive battery cover board, which is answered
It is mounted on cathode.
9. welding detection method according to claim 6, which is characterized in that the step S3 includes sub-step:
Image analysis apparatus handles the image of battery core, obtains the gray value of battery cover board in the image of battery core, passes through battery cover board
Gray value capture battery cover board on sunk area, judge whether sunk area has solder joint by gray difference, determine battery core
Number of welds judges whether solder skip.
10. welding detection method according to claim 6, which is characterized in that the step S3 includes sub-step:
Image analysis apparatus handles the image of battery core, obtains the gray value of battery cover board in the image of battery core, passes through battery cover board
Gray value capture sunk area on battery cover board, judge the bond pad locations of sunk area by gray difference, then with default figure
As comparing, judge whether to be partially welded.
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| CN201910810065.5A CN110412043A (en) | 2019-08-29 | 2019-08-29 | A kind of welding testing agency and welding detection method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114034575A (en) * | 2021-10-08 | 2022-02-11 | 珠海华冠科技股份有限公司 | Battery welding detection mechanism and battery welding detection method |
| CN114235704A (en) * | 2022-02-25 | 2022-03-25 | 深圳市贵航电子有限公司 | CCD detection clamp of battery spot welding equipment |
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| CN114034575A (en) * | 2021-10-08 | 2022-02-11 | 珠海华冠科技股份有限公司 | Battery welding detection mechanism and battery welding detection method |
| CN114034575B (en) * | 2021-10-08 | 2023-11-21 | 珠海华冠科技股份有限公司 | Battery welding detection mechanism and battery welding detection method |
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| CN114235704B (en) * | 2022-02-25 | 2022-05-27 | 深圳市贵航电子有限公司 | CCD detection clamp of battery spot welding equipment |
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