CN107449790A - A kind of resistance spot welding quality decision-making system and method based on ray detection - Google Patents
A kind of resistance spot welding quality decision-making system and method based on ray detection Download PDFInfo
- Publication number
- CN107449790A CN107449790A CN201710785758.4A CN201710785758A CN107449790A CN 107449790 A CN107449790 A CN 107449790A CN 201710785758 A CN201710785758 A CN 201710785758A CN 107449790 A CN107449790 A CN 107449790A
- Authority
- CN
- China
- Prior art keywords
- ray
- resistance spot
- spot welding
- nugget area
- method based
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
Abstract
The invention discloses a kind of resistance spot welding quality decision method and system based on ray detection, comprise the following steps：S1, pass through at least three ray cameras（4）Obtain nugget area in solder joint（3）Profile picture data；S2, the profile picture data in S1 and ray camera（4）Locus establish nugget area（3）Threedimensional model；S3, nugget area in threedimensional model drawn according to thickness of workpiece（3）Actual size；S4, the actual size in S3 judge whether quality of welding spot is qualified；Quality of welding spot is judged if size is above standard value to be unqualified, otherwise to be qualified.The device have the advantages that：With fast, accurately advantage, detection and accurate judgement can be carried out to the quality of welding spot of resistance spot welding in the case of without destructive testing, while operation is very easy, required cost is relatively low.
Description
Technical field
The invention belongs to Welding quality test technical field, and in particular to a kind of resistance spot welding quality based on ray detection
Decision method and system.
Background technology
Resistance spot welding widely applies to each industrial circle, there may be in resistance spot welding the fusion diameter of junction compared with
It is small or the defects of a large amount of be present so as to not reach required strength criterion, it can not meet industrial needs.Due to resistance spot welding
Solder joint is present in the inside of two connector faying faces, therefore intuitively can not observe and detect solder joint, for this kind of spot welding knot
Structure and defect, often without very suitable detection method, and detection method of the prior art both needs to destroy test specimen with exposure
Solder joint, very useful data can not be obtained again, so as to can not accurately judge the quality of spot welding.
The content of the invention
It is an object of the invention to overcome deficiency of the prior art, there is provided a kind of resistance spot welding matter based on ray detection
Amount determination operation and system, it can rapidly and accurately judge quality of welding spot without destroying test specimen.
To solve prior art problem, the invention discloses a kind of resistance spot welding quality judgement side based on ray detection
Method, comprise the following steps：
S1, the profile picture data by nugget area at least three ray cameras acquisition solder joint；
The threedimensional model in nugget area is established in S2, the profile picture data in S1 and ray camera locus；
S3, the actual size for drawing according to thickness of workpiece nugget area in threedimensional model；
S4, the actual size in S3 judge whether quality of welding spot is qualified；Judge quality of welding spot if size is above standard value
To be unqualified, otherwise to be qualified.
Further, in S1, ray camera prolongs circumferencial direction with the center of solder joint and is uniformly distributed.
Further, in S1, ray camera and the distance at solder joint center are no more than 20cm.
Further, in S3, the pad surface geometric profile that is gone out according to ray camera scanning, the position of ray camera, phase
The same area scanned between machine, the scan data of all ray cameras is spliced, obtain the three-dimensional geometry in nugget area in solder joint
Information.
Further, in S3, three-dimensional geometric information includes radius, height and the circularity in nugget area.
The invention also discloses a kind of resistance spot welding quality decision-making system based on ray detection, including：
At least three ray cameras, for obtaining the profile picture data in nugget area；
Three-dimensional computations module, for establishing nugget threedimensional model according to profile picture data；And
Determination module, for judging quality of welding spot；
Ray camera, three-dimensional computations module and determination module are sequentially connected with by cable.
The device have the advantages that：, can be right in the case of without destructive testing with fast, accurately advantage
The quality of welding spot of resistance spot welding carries out detection and accurate judgement, while operation is very easy, and required cost is relatively low.
Brief description of the drawings
Fig. 1 is the operational flowchart of decision method in the present invention；
Fig. 2 is the connection diagram of decision-making system in the present invention；
Fig. 3 is the top view of ray camera in system shown in Figure 2；
Fig. 4 is the front view of ray camera in system shown in Figure 2.
Reference：
1 upper plate；2 lower plates；3 nugget areas；4 ray cameras；5 computers；51 three-dimensional computations modules；52 determination modules.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following examples are only used for clearly illustrating the present invention
Technical scheme, and can not be limited the scope of the invention with this.
As shown in Figures 1 to 4, a kind of resistance spot welding quality decision-making system based on ray detection, including：Three ray cameras
4, for obtaining the profile picture data in nugget area 3；Three-dimensional computations module 51, it is molten for being established according to profile picture data
Core threedimensional model；And determination module 52, for judging quality of welding spot；The output end of ray camera 4 is counted by cable with three-dimensional
The input connection of module 51 is calculated, the output end of three-dimensional computations module 51 is connected by cable with the input of determination module 52.
Ray camera 4 is distributed uniformly and circumferentially using solder joint center as the center of circle, therefore the level between two ray cameras 4
Angle is 120 °, can also use more ray cameras 4, and its angle is 360 °/n, and n is the number of ray camera 4.Ray camera
4 ray launching port is no more than 20cm with the spacing at solder joint center, to ensure that weld nugget nugget area is in effective irradiated region
In domain.
Ray camera 4 can launch X ray, according to the structural constituent in the nugget formation in resistance spot welding area principle different from mother metal,
So as to obtain the profile picture in nugget area.
Three-dimensional computations module 51 is integrated in computer 5 with determination module 52, and computer 5 has input-output equipment, defeated
Enter equipment be used for input workpiece dimension information and ray camera 4 positional information, output equipment be used for show three-dimensional module and
Result of determination.
Decision method comprises the following steps：
S1, the profile picture data by nugget area 3 in three acquisition solder joints of ray cameras 4.
S2, the locus of profile picture data and ray camera 4 imported and establishes solder joint in three-dimensional computations module 51 and melts
The threedimensional model in core area 3.
S3, nugget area 3 in threedimensional model will be drawn in upper plate 1 and the thickness data of lower plate 2 input three-dimensional computations module 51
Actual size.
According to upper plate and the thickness data of lower plate, you can draw the faying face position data of two plates, faying face cuts nugget area
The obtained shape of threedimensional model be judge needed for true form, its size is actual size.
S4, it will judge whether quality of welding spot is qualified in actual size importing determination module 52；If size is above standard value
Quality of welding spot is judged to be unqualified, otherwise to be qualified.
General nugget area is shaped as ellipse, is judged using the size of its short axle during judgement, its minor axis dimension exists
Quality of welding spot is then judged in standard value range to be qualified, otherwise to be unqualified.
Wherein, in S3, the pad surface geometric profile that is scanned according to ray camera 4, the position of ray camera 4, camera
Between the same area that scans, the scan data of all ray cameras 4 is spliced, obtains the three-dimensional geometry in nugget area 3 in solder joint
Information.
The geological information of threedimensional model includes radius, height and the circularity in nugget area 3.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, some improvement and deformation can also be made, these are improved and deformation
Also it should be regarded as protection scope of the present invention.
Claims (6)
- A kind of 1. resistance spot welding quality decision method based on ray detection, it is characterised in that：Comprise the following steps：S1, pass through at least three ray cameras（4）Obtain nugget area in solder joint（3）Profile picture data；S2, the profile picture data in S1 and ray camera（4）Locus establish nugget area（3）Three-dimensional mould Type；S3, nugget area in threedimensional model drawn according to thickness of workpiece（3）Actual size；S4, the actual size in S3 judge whether quality of welding spot is qualified；Judge quality of welding spot if size is above standard value To be unqualified, otherwise to be qualified.
- A kind of 2. resistance spot welding quality decision method based on ray detection according to claim 1, it is characterised in that：S1 In, the ray camera（4）Prolong circumferencial direction with the center of solder joint to be uniformly distributed.
- A kind of 3. resistance spot welding quality decision method based on ray detection according to claim 1, it is characterised in that：S1 In, the ray camera（4）It is no more than 20cm with the distance at solder joint center.
- A kind of 4. resistance spot welding quality decision method based on ray detection according to claim 1, it is characterised in that：S3 In, according to ray camera（4）The pad surface geometric profile scanned, ray camera（4）Position, the phase scanned between camera Same region, by all ray cameras（4）Scan data splicing, obtain solder joint in nugget area（3）Three-dimensional geometric information.
- A kind of 5. resistance spot welding quality decision method based on ray detection according to claim 4, it is characterised in that：S3 In, three-dimensional geometric information includes nugget area（3）Radius, height and circularity.
- A kind of 6. resistance spot welding quality decision-making system based on ray detection, it is characterised in that：Including：At least three ray cameras（4）, for obtaining nugget area（3）Profile picture data；Three-dimensional computations module（51）, for establishing nugget threedimensional model according to profile picture data；AndDetermination module（52）, for judging quality of welding spot；The ray camera（4）, the three-dimensional computations module（51）With the determination module（52）It is sequentially connected with by cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710785758.4A CN107449790A (en) | 2017-09-04 | 2017-09-04 | A kind of resistance spot welding quality decision-making system and method based on ray detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710785758.4A CN107449790A (en) | 2017-09-04 | 2017-09-04 | A kind of resistance spot welding quality decision-making system and method based on ray detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107449790A true CN107449790A (en) | 2017-12-08 |
Family
ID=60494906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710785758.4A Pending CN107449790A (en) | 2017-09-04 | 2017-09-04 | A kind of resistance spot welding quality decision-making system and method based on ray detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107449790A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111192246A (en) * | 2019-12-27 | 2020-05-22 | 苏州班奈特电子有限公司 | Automatic detection method of welding spot |
| CN114713522A (en) * | 2022-06-06 | 2022-07-08 | 裕钦精密拉深技术(苏州)有限公司 | Stamping part detection system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101334264A (en) * | 2008-07-25 | 2008-12-31 | 华中科技大学 | Laser welding narrow butt-jointed seam measurement method and device |
| CN202126417U (en) * | 2011-06-17 | 2012-01-25 | 上海现代科技发展有限公司 | X-ray fluoroscopy imaging four-axis moving platform of measured object |
| CN202814895U (en) * | 2012-08-16 | 2013-03-20 | 无锡日联科技有限公司 | Omnibearing X-Ray online detection system for lithium ion battery |
| CN103134821A (en) * | 2011-12-01 | 2013-06-05 | 飞秒光电科技(西安)有限公司 | X-ray meter control system for printed circuit board (PCB) production |
| CN103226114A (en) * | 2013-04-02 | 2013-07-31 | 清华大学 | Multi-perspective stereoscopic radiation imaging system and method |
| CN204359711U (en) * | 2014-09-02 | 2015-05-27 | 同方威视技术股份有限公司 | X ray product quality on-line measuring device |
| CN106908453A (en) * | 2017-03-24 | 2017-06-30 | 中国科学技术大学 | The detection method and detection means of a kind of printed substrate |
-
2017
- 2017-09-04 CN CN201710785758.4A patent/CN107449790A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101334264A (en) * | 2008-07-25 | 2008-12-31 | 华中科技大学 | Laser welding narrow butt-jointed seam measurement method and device |
| CN202126417U (en) * | 2011-06-17 | 2012-01-25 | 上海现代科技发展有限公司 | X-ray fluoroscopy imaging four-axis moving platform of measured object |
| CN103134821A (en) * | 2011-12-01 | 2013-06-05 | 飞秒光电科技(西安)有限公司 | X-ray meter control system for printed circuit board (PCB) production |
| CN202814895U (en) * | 2012-08-16 | 2013-03-20 | 无锡日联科技有限公司 | Omnibearing X-Ray online detection system for lithium ion battery |
| CN103226114A (en) * | 2013-04-02 | 2013-07-31 | 清华大学 | Multi-perspective stereoscopic radiation imaging system and method |
| CN204359711U (en) * | 2014-09-02 | 2015-05-27 | 同方威视技术股份有限公司 | X ray product quality on-line measuring device |
| CN106908453A (en) * | 2017-03-24 | 2017-06-30 | 中国科学技术大学 | The detection method and detection means of a kind of printed substrate |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111192246A (en) * | 2019-12-27 | 2020-05-22 | 苏州班奈特电子有限公司 | Automatic detection method of welding spot |
| CN111192246B (en) * | 2019-12-27 | 2023-06-13 | 苏州班奈特电子有限公司 | Automatic detection method for welding spots |
| CN114713522A (en) * | 2022-06-06 | 2022-07-08 | 裕钦精密拉深技术(苏州)有限公司 | Stamping part detection system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109001224B (en) | Welding seam detection method and detection device | |
| Nguyen et al. | Laser-vision-based quality inspection system for small-bead laser welding | |
| CN107052571A (en) | A kind of laser welding apparatus and method for laser welding | |
| KR102235832B1 (en) | Portable type welding inspection appatatus and inspection method | |
| JPWO2018092492A1 (en) | Operation monitoring apparatus, method and program for high frequency resistance welding and induction heating welding of ERW steel pipe | |
| JP6696278B2 (en) | Drift inspection equipment | |
| CN114088738B (en) | High-precision defect detection method and device for annular welding seam | |
| CN107449790A (en) | A kind of resistance spot welding quality decision-making system and method based on ray detection | |
| JP6481216B1 (en) | Tubular body surface inspection method and tubular body surface inspection apparatus | |
| CN106932415B (en) | A kind of dedicated compound non-destructive testing device of laser weld joint and method | |
| CN112296515B (en) | System and method for multi-task laser welding | |
| CN107764315A (en) | Spot-wedling electrode detection means and its detection method | |
| CN107515230A (en) | A kind of welding system and product inspection method | |
| CN107843602A (en) | A kind of detection method for quality of welding line based on image | |
| CN107705312B (en) | Method for extracting welded seam edge points based on line scanning data | |
| CN105891210A (en) | Method for detecting fatigue life of resistance welding point | |
| Zou et al. | Laser-based precise measurement of tailor welded blanks: a case study | |
| JP6543468B2 (en) | Inspection device for welds | |
| US11583958B2 (en) | Method for testing a joint | |
| CN108262583B (en) | Welding seam type judging and positioning method and system | |
| CN220445470U (en) | Welding state sensing system of welding device | |
| CN106141382A (en) | Bevel for welding marginal position visual sensing detection method | |
| CN111299835A (en) | Laser flight welding online repair welding device and method | |
| CN206677406U (en) | Integrated welding, which is agreed to play, takes the photograph structure and battery core automatic welding detection means | |
| RU2644617C2 (en) | Mobile scanner for determining of quality of weld surface |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171208 |