CN102393181B - Automatic online detection method and device of angle steel geometric parameters - Google Patents
Automatic online detection method and device of angle steel geometric parameters Download PDFInfo
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- CN102393181B CN102393181B CN 201110283671 CN201110283671A CN102393181B CN 102393181 B CN102393181 B CN 102393181B CN 201110283671 CN201110283671 CN 201110283671 CN 201110283671 A CN201110283671 A CN 201110283671A CN 102393181 B CN102393181 B CN 102393181B
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- 238000001514 detection method Methods 0.000 title claims abstract description 56
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 54
- 239000010959 steel Substances 0.000 title claims abstract description 54
- 239000000463 material Substances 0.000 claims abstract description 31
- 238000005259 measurement Methods 0.000 claims abstract description 22
- 238000012546 transfer Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000012545 processing Methods 0.000 claims abstract description 3
- 230000005540 biological transmission Effects 0.000 claims description 16
- 238000013461 design Methods 0.000 claims description 7
- 230000002950 deficient Effects 0.000 claims description 6
- 238000004064 recycling Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 238000013480 data collection Methods 0.000 abstract 4
- 239000007858 starting material Substances 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000003908 quality control method Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
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Abstract
The invention discloses an automatic online detection method and device of angle steel geometric parameters. The automatic detection device comprises a material transfer system, a data collection system and a detection control system; the detection control system comprises a computer control system, a computer measurement and detection system; the material transfer system is composed of a belt transfer mechanism, and transfers angle steels one by one by virtue of the data collection system; the data collection system comprises a three-dimensional laser scanner and a fixed splicing target which are respectively arranged at two sides of the material transfer system, and the camera lens of the three-dimensional laser scanner is approximately vertical to the vertical axis of the transfer system; the computer control system controls the material transfer system to act by utilizing software, controls the data collection system to operate, and controls the transfer of each part of signals and data; and the computer measurement and detection system comprises various practical processing modules for detecting, calculating, analyzing, reporting and the like. According to the invention, the device has high automation degree and high measurement accuracy, and the device and the method are suitable for industrial high-speed online batch detection.
Description
Technical field
The present invention relates to a kind of automatic on-line detection method, relate in particular to a kind of angle steel geometric parameter automatic on-line detection method.
Background technology
Angle steel is widely used in various industrial structures and engineering structure, as electric transmission pole tower, handling machinery, bridge, boats and ships, reaction tower etc.And the geometric parameter of these angle steel is to judge whether qualified major parameter of starting material, in some engineering structure, as the iron tower of power transmission line of various electric pressures, broadcasting television tower, microwave communication iron tower, transformer station's structure support the on-the-spot splicing smoothly of related industries structure and engineering structure and the performance of structure there is bigger influence.In order to guarantee carrying out smoothly of the on-the-spot splicing of various industrial structures and engineering structure, need carry out strictness control to the geometric parameter of these angle steel and detect with accurate.Wherein, the raw-material geometric parameter of angle steel (2 width d as shown in Figure 1,
1, d
2, 2 thickness d
3, d
4, totally 4 value/sections) and the accuracy requirement that detects is higher, and according to relevant national standard, actual parameter value and design load relative error should be within ± 0.4mm, otherwise that the angle steel starting material are considered as is defective.
At present, also there is not the accurate automatic on-line detecting system of suitable angle steel geometric parameter both at home and abroad.Domestic present traditional method is that instruments such as raw-material geometric parameter utilization tradition vernier caliper are inspected by random samples, or utilizes contact-sensing to detect.Traditional method is backward in technique, inefficiency, the human and material resources serious waste, can not complete detection when material quantity is big, and the electric power tower material of using under as particular surroundingss such as Qinghai-Tibet Plateans must complete detection, so just must find the Detection ﹠ Controling method of the online high speed of a kind of angle steel geometric parameter, high-precision science.
Summary of the invention
Technical matters to be solved by this invention is to overcome the deficiency of existing in prior technology inefficiency, difficult quality guarantee, a kind of angle steel geometric parameter automatic on-line detection method is provided, this method can realize the on-the-spot high precision of angle steel geometric parameter, obtain fast, and parameter value and design load compared, according to comparative result qualified/defective starting material are separated, thereby realized that angle steel geometric parameter precision detects and performance and the quality control of various structures.
Another object of the present invention also provides angle steel geometric parameter automatic on-line pick-up unit.
The present invention is specifically by the following technical solutions:
A kind of angle steel geometric parameter automatic on-line detection method, this method may further comprise the steps:
Step 1, angle steel is placed on material automatic transmission system 1;
Step 2, detection control system 3 control angle steel 5 transmit data acquisition system (DAS)s 2 positions automatically;
Step 3, two three-dimensional laser scanners 6,7 that detect in the control system 3 control data acquisition system (DAS)s 2 begin scanning works;
The computer measurement detection system of step 4, detection control system 3 utilizes the angle steel cloud data to set up the three-dimensional model at the position of scanning, utilize the computer measurement detection system in three-dimensional model point truncated models transversal section then, cloud data on this transversal section of recycling is measured and is calculated the geometric parameter d of this section part angle steel automatically by the computer measurement detection system
1, d
2, d
3, d
4Utilize the design load of computer measurement detection system and geometric parameter to compare automatically the geometric parameter values that obtains, obtain the error amount of each geometric parameter of material; It is qualified that error amount namely is considered as in the error allowed band, and error amount exceeds the error allowed band and namely is considered as defective;
A kind of angle steel geometric parameter automatic on-line pick-up unit comprises material automatic transmission system, data acquisition system (DAS), detection control system; Described detection control system comprises computer control system, computer measurement detection system; Described material conveying system is made of belt conveyor, and angle steel is transmitted one by one through data acquisition system (DAS); Described data acquisition system (DAS) comprises the three-dimensional laser scanner and fixing splicing target composition, the camera lens of three-dimensional laser scanner and transfer system longitudinal axis approximate vertical that is arranged at the material conveying system both sides respectively; Described computer control system is to utilize the transmission of the action of software control material conveying system, the work of control data acquisition system (DAS), control each several part signal and data; By to the processing of online actual scanning cloud data, analyze the interrelated geometrical parameters of obtaining institute's test material, thereby judge whether material qualified, and generate examining report and form automatically.
In the technique scheme, the used surveying instrument of described data acquisition system (DAS) can use existing all kinds of surveying instrument, for example the X ray gauging instrument, based on gauging instrument of ccd image etc., as long as measuring accuracy can reach requirement, preferably, the used surveying instrument of described data acquisition system (DAS) is three-dimensional laser scanner.
Further, described three-dimensional laser scanner is two, is oppositely arranged on described material automatic transmission system both sides.But model splicing bidding target is bidding target not also, then can improve model splicing speed and precision as the bidding target.
The present invention has following advantage compared to existing technology:
The present invention can realize that angle steel geometric parameter scene is contactless, high precision, obtain fast, and parameter value and design load compared, qualified/defective starting material are separated (can be artificial the separation or the otherwise designed automatic separation system) according to comparative result, thereby realized performance and the quality control of the accurate online detection of angle steel geometric parameter and various structures.Because cloud data is the three-dimensional coordinate of each point, in the testing process to the geometric parameter width d of angle steel
1, d
2, and thickness d
3, d
4Measurement, as long as scanner 6 can scan the convex surface of angle steel, scanner 7 concave surface that can scan angle steel gets final product simultaneously, and angle steel is put no specific (special) requirements.
Automaticity height of the present invention, the measuring accuracy height can be saved great amount of manpower and material resources, is applicable to the online contactless detection of industrial high speed.By of the present invention, this area professional and technical personnel can implement this step through training, reaches goal of the invention.
Description of drawings
Fig. 1 is angle steel starting material geometric parameter synoptic diagram;
Fig. 2 is structural representation of the present invention, and among the figure, 1 is the material automatic transmission system, and 2 is data acquisition system (DAS), and 3 detect control system, and 4 are the splicing target, and 5 is the angle steel starting material, 6,7 three-dimensional laser scanners
Fig. 3 is scanning system principle schematic of the present invention, and 5 is the angle steel starting material among the figure, and 6,7 is three-dimensional laser scanner;
Fig. 4 is control structure synoptic diagram of the present invention.
Fig. 5 is main control process flow figure of the present invention.
Embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is elaborated:
Angle steel geometric parameter automatic on-line detection method of the present invention as shown in Figure 2, comprises material automatic transmission system 1, data acquisition system (DAS) 2 and detects control system 3.Automatic transmission system 1 is provided with driving motor and conveying belt, material 5 is forwarded, detecting the position at need suspends by detecting control system 3 control automatic transmission systems 1, begin to scan the cloud data that obtains angle steel by detecting control system 3 control three-dimensional laser scanners 6 and 7 then, data transmission is to detecting control system 3.Detecting control system 3 is made up of computer control system, computer measurement detection system; Computer control system is coordinated control to whole detection system; The computer measurement detection system comprises data reception module, three-dimensional modeling module and measures module, computation analysis module, Reports module, receive cloud data, and carry out modeling, model and design data are compared, judge according to comparative result whether starting material are qualified, and to number of non-compliances according to marking, import detection information into computer control system simultaneously, generate examining report and form automatically.The The whole control structure as shown in Figure 4.
Angle steel geometric parameter automatic checkout system of the present invention can be carried out automatic on-line to the physical dimension of angle steel and be detected, and wherein, the geometric parameter of angle steel is 2 width d of angle steel
1, d
2, and 2 thickness d
3, d
4(as shown in Figure 1), the course of work of this system comprises:
Step 1, angle steel 5 is placed on material automatic transmission system 1;
Step 2, detection control system 3 control angle steel 5 transmit data acquisition system (DAS)s 2 positions automatically;
Step 3, two three-dimensional laser scanners 6,7 that detect in the control system 3 control data acquisition system (DAS)s 2 begin scanning works;
The computer measurement detection system (three-dimensional modeling module) of step 4, detection control system 3 utilizes the angle steel cloud data to set up the three-dimensional model at the position of scanning, utilize computer measurement detection system (measurement module) in three-dimensional model point truncated models transversal section then, cloud data is measured and is calculated the geometric parameter (d of this section part angle steel automatically on this transversal section of recycling by computer measurement detection system (measurement module)
1, d
2, d
3, d
4); Utilize computer measurement detection system (calculating and analysis module) to compare automatically with the design load of geometric parameter the geometric parameter values that obtains, obtain the error amount of each geometric parameter of material; It is qualified that error amount namely is considered as in error allowed band (allowed band requires to set according to related specifications), and error amount exceeds the error allowed band and namely is considered as defective;
Idiographic flow is referring to Fig. 5.
Claims (5)
1. angle steel geometric parameter automatic on-line detection method, this method may further comprise the steps:
Step 1, angle steel is placed on material automatic transmission system (1);
Step 2, detection control system (3) control angle steel (5) are sent to the position of data acquisition system (DAS) (2) automatically;
Step 3, two three-dimensional laser scanners (6,7) that detect in control system (3) the control data acquisition system (DAS) (2) begin scanning work;
The computer measurement detection system of step 4, detection control system (3) utilizes the angle steel cloud data to set up the three-dimensional model at the position of scanning, utilize the computer measurement detection system in three-dimensional model point truncated models transversal section then, cloud data on this transversal section of recycling is measured and is calculated the geometric parameter d of this section part angle steel automatically by the computer measurement detection system
1, d
2, d
3, d
4Utilize the design load of computer measurement detection system and geometric parameter to compare automatically the geometric parameter values that obtains, obtain the error amount of each geometric parameter of material; It is qualified that error amount namely is considered as in the error allowed band, and error amount exceeds the error allowed band and namely is considered as defective;
Step 5, detection control system 3 control transfer systems (1) continue to transmit, repeating step 2-step 4, or finish detection.
2. angle steel geometric parameter automatic on-line detection method according to claim 1 is characterized in that described data acquisition instrument is three-dimensional laser scanner.
3. as angle steel geometric parameter automatic on-line detection method as described in as described in the claim 2, it is characterized in that described three-dimensional laser scanner is two, be oppositely arranged on described material automatic transmission system both sides.
4. as angle steel geometric parameter automatic on-line detection method as described in the claim 1,2 or 3, it is characterized in that described angle steel geometric parameter is two width (d of angle steel
1, d
2), and two thickness (d
3, d
4).
5. an angle steel geometric parameter automatic on-line pick-up unit is characterized in that it comprises material automatic transmission system, data acquisition system (DAS) and detection control system;
Detect control system, comprise computer control system, computer measurement detection system;
Material conveying system is made of belt conveyor, and angle steel is transmitted one by one through data acquisition system (DAS);
Data acquisition system (DAS) comprises the three-dimensional laser scanner and fixing splicing target, the camera lens of three-dimensional laser scanner and transfer system longitudinal axis approximate vertical that are arranged at the material conveying system both sides respectively;
Computer control system is utilized the transmission of the action of software control material conveying system, the work of control data acquisition system (DAS), control each several part signal and data; By to the processing of online actual scanning cloud data, analyze the interrelated geometrical parameters of obtaining institute's test material, thereby judge whether material qualified; Automatically generate examining report and form.
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|---|---|---|---|
| CN 201110283671 CN102393181B (en) | 2011-09-22 | 2011-09-22 | Automatic online detection method and device of angle steel geometric parameters |
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| CN 201110283671 CN102393181B (en) | 2011-09-22 | 2011-09-22 | Automatic online detection method and device of angle steel geometric parameters |
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| CN102393181B true CN102393181B (en) | 2013-07-10 |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104090024A (en) * | 2013-09-23 | 2014-10-08 | 浙江工商大学 | Angle steel inner-pore detection method |
| CN104567678A (en) * | 2015-01-06 | 2015-04-29 | 济南时代百超科技有限公司 | Automatic detection device |
| CN104729426B (en) * | 2015-04-03 | 2018-01-12 | 济南恒升视觉信息科技有限公司 | Angle steel automatic on-line detecting system and method based on machine vision |
| CN105180829B (en) * | 2015-08-24 | 2018-07-03 | 恒瞻（新兴）科技有限公司 | A kind of online contour outline measuring set for the production of tire glue component |
| CN105547167B (en) * | 2016-03-11 | 2018-07-03 | 中冶赛迪电气技术有限公司 | Strip width measuring system and method based on machine vision |
| CN106441087B (en) * | 2016-08-15 | 2019-04-16 | 南京工业大学 | A kind of more size Multi-parameter Measurement Methods of workpiece based on image procossing |
| CN108303024A (en) * | 2018-03-02 | 2018-07-20 | 徐皓 | A kind of full-automatic forging on-line detecting system and implementation method |
| CN110021010B (en) * | 2019-03-12 | 2021-05-25 | 吉利汽车研究院（宁波）有限公司 | Surface material inspection method |
| CN110260790A (en) * | 2019-07-20 | 2019-09-20 | 龚烨飞 | A kind of detection device and its detection method of the punching angle steel based on 3D vision |
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| CN111581710B (en) * | 2020-05-19 | 2021-04-13 | 北京数字绿土科技有限公司 | Automatic acquiring method and device for deflection of overhead transmission line tower |
| CN113074633B (en) * | 2021-03-22 | 2023-01-31 | 西安工业大学 | Automatic detection system and detection method for overall dimension of material |
| CN115183688A (en) * | 2022-06-10 | 2022-10-14 | 国珑智能科技(威海)有限公司 | Detection system for flatness and thickness of household appliance door body |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5770864A (en) * | 1996-12-31 | 1998-06-23 | Pitney Bowes Inc. | Apparatus and method for dimensional weighing utilizing a laser scanner or sensor |
| CN2701720Y (en) * | 2004-06-02 | 2005-05-25 | 长沙悦诚机电科技有限公司 | Static geometric parameter detecting instrument for rail track |
| DE102006017337A1 (en) * | 2006-04-11 | 2007-10-18 | Sick Ag | Method for optically detecting moving objects and apparatus |
| CN201429410Y (en) * | 2009-07-06 | 2010-03-24 | 成都志诚汽车保修检测设备有限公司 | Novel automatic measuring device for overall sizes of vehicle |
| CN201593973U (en) * | 2009-08-25 | 2010-09-29 | 周良川 | Slab volume measuring system |
| CN101797665B (en) * | 2010-01-20 | 2012-05-16 | 浙江理工大学 | Visual detection sensing unit |
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