CN110793972A - H-shaped steel multi-surface defect detection system - Google Patents
H-shaped steel multi-surface defect detection system Download PDFInfo
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- CN110793972A CN110793972A CN201911006975.4A CN201911006975A CN110793972A CN 110793972 A CN110793972 A CN 110793972A CN 201911006975 A CN201911006975 A CN 201911006975A CN 110793972 A CN110793972 A CN 110793972A
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- shaped steel
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 76
- 239000010959 steel Substances 0.000 title claims abstract description 76
- 230000007547 defect Effects 0.000 title claims abstract description 24
- 238000001514 detection method Methods 0.000 title claims abstract description 10
- 230000003044 adaptive effect Effects 0.000 claims abstract description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 208000032544 Cicatrix Diseases 0.000 description 2
- 208000034656 Contusions Diseases 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 235000013372 meat Nutrition 0.000 description 2
- 231100000241 scar Toxicity 0.000 description 2
- 230000037387 scars Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012372 quality testing Methods 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
- 239000002699 waste material Substances 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
- G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
- G01N21/8901—Optical details; Scanning details
- G01N21/8903—Optical details; Scanning details using a multiple detector array
-
- 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
-
- 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
- G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
- G01N21/8914—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the material examined
-
- 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
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/9515—Objects of complex shape, e.g. examined with use of a surface follower device
-
- 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
- G01N2021/845—Objects on a conveyor
- G01N2021/8455—Objects on a conveyor and using position detectors
-
- 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
- G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
- G01N21/8914—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the material examined
- G01N2021/8918—Metal
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- 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)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention relates to a multi-surface defect detection system for H-shaped steel, which is used for detecting H-shaped steel produced and operated on a roller way. The device comprises a guide rail, a connecting support, a sliding block, a fixed support, a plurality of groups of industrial linear cameras and light sources, wherein the guide rail and the connecting support are fixed on the sliding block, the sliding block can move along the guide rail, the fixed support is fixed on the connecting support, and the industrial linear cameras and the light sources are distributed on the fixed support and are used for acquiring images of different surfaces of the H-shaped steel; when the position of the H-shaped steel to be detected on the roller way changes, the servo motor is controlled through the controller, so that the sliding block moves, the position of the industrial linear array camera is adjusted, and the adaptive acquisition of the surface image of the H-shaped steel is realized.
Description
Technical Field
The invention relates to the field of quality detection of H-shaped steel products, in particular to a multi-surface defect detection system for H-shaped steel.
Background
With the wide application of H-shaped steel in the fields of high-rise buildings, highway construction, ocean platforms, power equipment, steel structure plants and the like, the quality requirements of customers on H-shaped steel are continuously improved. However, various defects are inevitably generated in the production process of the H-section steel, and therefore, it is increasingly important to detect the surface quality of the H-section steel. Because H shaped steel model is numerous, and the surface condition is complicated, mainly look for the defect through quality testing personnel visual inspection H shaped steel surface at present, but the manual detection speed is slow, and the precision is low, causes the lack of defect to examine easily and leaks to examine. If the surface defects of the H-shaped steel cannot be detected in time, the quality of the H-shaped steel is seriously influenced, and even the huge economic loss is brought to customers and enterprises because the H-shaped steel cannot be used to cause the waste of the H-shaped steel. Therefore, a system capable of detecting surface defects of H-section steel is needed.
Disclosure of Invention
The invention aims to design a system for detecting the defects of multiple surfaces of H-shaped steel 9, which can accurately detect the defects of the surfaces of a web plate and a flange plate of the H-shaped steel in real time, thereby overcoming the defects of the prior art. The technical scheme is as follows:
the utility model provides a many surface defects of H shaped steel detecting system for detect the H shaped steel of production operation on the roll table, its characterized in that includes laser sensor, fixed bolster, linking bridge, a plurality of industry line scan camera, slider, linear guide, controller and host computer. Wherein,
the guide rail and the connecting support are fixed on the sliding block, the sliding block can move along the guide rail, the fixing support is fixed on the connecting support, a plurality of groups of industrial linear cameras and light sources are distributed on the fixing support, and the industrial linear cameras are used for acquiring images of different surfaces of the H-shaped steel; when the position of the H-shaped steel to be detected on the roller way changes, the servo motor is controlled by the controller to enable the sliding block to move, so that the position of the industrial linear array camera is adjusted, and the adaptive acquisition of the surface image of the H-shaped steel is realized;
the laser sensor is used for monitoring the running state of the H-shaped steel, when the H-shaped steel is produced and operated, the distance information measured by the laser sensor changes, and the laser sensor is communicated with the upper computer through the controller, so that the opening and closing of each industrial linear array camera and each light source are controlled.
The system further comprises a speed encoder, wherein the speed encoder is connected with the roller way and used for detecting the running speed of the H-shaped steel and communicating with an upper computer so as to adjust the line frequency of each industrial linear array camera.
The upper computer is also used for processing the collected H-shaped steel images, recognizing and classifying and positioning surface defects of the H-shaped steel.
The invention has the beneficial effects that:
1) the invention adopts 8 groups of industrial linear cameras 1-8 and light sources, can realize the omnibearing and multi-angle acquisition of the surface image of the H-shaped steel 9, and overcomes the difficulty that the surface structure of the H-shaped steel 9 is complex and difficult to acquire;
2) the linear guide rail modules 15 and 16 provided by the invention can adjust the positions of the industrial linear array cameras 1-8 and the light source according to different positions of the H-shaped steel 10 on the roller way, so as to realize the self-adaptive acquisition of the surface image of the H-shaped steel 9.
Drawings
FIG. 1 is a structural diagram of a multi-surface defect detection system for H-shaped steel.
In the figure:
1, 2, 3, 4, 5, 6, 7, 8-industrial line camera; 9-H section steel; 10-a roller bed for running H-shaped steel; 11-octagonal metal brackets; 12-a laser sensor; 13-a speed encoder; 14-a connecting bracket; 15-a slide block; 16-linear guide rail.
Detailed Description
The following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings, which are not intended to limit the scope of the invention.
As shown in FIG. 1, the multi-surface defect detection system for H-shaped steel comprises: the device comprises an image acquisition module, a controller and an upper computer. The image acquisition module is used for acquiring surface images of the H-shaped steel 9 of different models; the controller receives signals of the laser sensor 12, further controls the operation and the closing of the industrial linear array cameras 1-8 and the light source, controls the servo motor, and drives the sliding block 15, so that the positions of the industrial linear array cameras 1-8 and the light source are adjusted in a self-adaptive mode; the upper computer is used for an operator to set line frequency, exposure time, gain and region-of-interest parameters of the industrial linear array cameras 1-8; processing the collected H-shaped steel 9 image, identifying, classifying and positioning the surface defects (cracks, scars, pits, pitted surfaces, deformation, bruising, cavities, meat falling and impurities) of the H-shaped steel 9; the model information and the defect information of the H-shaped steel 9 are displayed on an upper computer, the number of the H-shaped steel 9 with different defect types is counted, and the method has a query function.
The H-shaped steel 9 is produced and operated on a roller way 10. The industrial linear array camera 1 collects the upper surface data of the inner side of the right flange plate of the H-shaped steel 9, the industrial linear array camera 2 collects the upper surface data of the upper side of the web plate of the H-shaped steel 9, the industrial linear array camera 3 collects the upper surface data of the inner side of the left flange plate of the H-shaped steel 9, the industrial linear array camera 4 collects the surface data of the outer side of the right flange plate of the H-shaped steel 9, the industrial linear array camera 5 collects the lower surface data of the inner side of the left flange plate of the H-shaped steel 9, the industrial linear array camera 6 collects the lower surface data of the web plate of the H-shaped steel 9, the industrial linear array camera 7 collects the lower surface data of the inner. Each industrial linear array camera is provided with an independent LED light source, and image acquisition of each surface of the H-shaped steel 9 is achieved.
The slider 15 is connected with the linear guide rail 16 and the connecting support 14, can drive the connecting support 14 and the octagonal metal support 11 to move left and right in the direction perpendicular to the moving direction of the H-shaped steel 9, controls the servo motor through the controller when the position of the H-shaped steel 9 to be detected on the roller way changes, and adjusts the positions of the industrial linear array cameras 1-8, so that the relative distance between the industrial linear array cameras 1-8 and the H-shaped steel 9 does not change, and self-adaptive acquisition of the surface image of the H-shaped steel 9 is realized.
The laser sensor 12 is installed on the octagonal metal support 11, the running state of the H-shaped steel 9 is monitored in real time, when the H-shaped steel 9 is produced and operated, the distance information measured by the laser sensor 13 changes, and the laser sensor is communicated with an upper computer through a controller, so that the industrial linear array cameras 1-8 and the light source are controlled to be turned on and turned off.
The speed encoder 13 is connected with the roller way 10, detects the running speed of the H-shaped steel 9, communicates with an upper computer, further adjusts the line frequency of the industrial linear array cameras 1-8, ensures that the images of the H-shaped steel 9 are not stretched and compressed, and achieves dynamic acquisition.
The controller receives signals of the laser sensor 12, and then the industrial linear array cameras 1-8 and the light source are controlled to operate and shut down; and controlling a servo motor to drive the sliding block 15, so that the positions of the industrial linear array cameras 1-8 and the light source are adjusted in a self-adaptive manner, and the self-adaptive acquisition of the surface image of the H-shaped steel is realized.
The upper computer is used for an operator to set line frequency, exposure time, gain and region-of-interest parameters of the industrial linear array cameras 1-8; processing the collected H-shaped steel 9 image, identifying, classifying and positioning the surface defects (cracks, scars, pits, pitted surfaces, deformation, bruising, cavities, meat falling and impurities) of the H-shaped steel 9; the model information and the defect information of the H-shaped steel 9 are displayed on an upper computer, the number of the H-shaped steel 9 with different defect types is counted, and the method has a query function.
Claims (3)
1. The utility model provides a many surface defects of H shaped steel detecting system for detect the H shaped steel of production operation on the roll table, its characterized in that includes laser sensor, fixed bolster, linking bridge, a plurality of industry line scan camera, slider, linear guide, controller and host computer. Wherein,
the guide rail and the connecting support are fixed on the sliding block, the sliding block can move along the guide rail, the fixing support is fixed on the connecting support, a plurality of groups of industrial linear cameras and light sources are distributed on the fixing support, and the industrial linear cameras are used for acquiring images of different surfaces of the H-shaped steel; when the position of the H-shaped steel to be detected on the roller way changes, the servo motor is controlled by the controller to enable the sliding block to move, so that the position of the industrial linear array camera is adjusted, and the adaptive acquisition of the surface image of the H-shaped steel is realized;
the laser sensor is used for monitoring the running state of the H-shaped steel, when the H-shaped steel is produced and operated, the distance information measured by the laser sensor changes, and the laser sensor is communicated with the upper computer through the controller, so that the opening and closing of each industrial linear array camera and each light source are controlled.
2. The detection system according to claim 1, further comprising a speed encoder connected to the roller bed for detecting the running speed of the H-beam and communicating with the upper computer for adjusting the line frequency of each industrial line camera.
3. The detection system of claim 1, wherein the upper computer is further configured to process the acquired H-shaped steel image, identify, classify and locate the surface defects of the H-shaped steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911006975.4A CN110793972A (en) | 2019-10-22 | 2019-10-22 | H-shaped steel multi-surface defect detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911006975.4A CN110793972A (en) | 2019-10-22 | 2019-10-22 | H-shaped steel multi-surface defect detection system |
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| Publication Number | Publication Date |
|---|---|
| CN110793972A true CN110793972A (en) | 2020-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911006975.4A Pending CN110793972A (en) | 2019-10-22 | 2019-10-22 | H-shaped steel multi-surface defect detection system |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111413347A (en) * | 2020-04-28 | 2020-07-14 | 河北鑫达钢铁集团有限公司 | H shaped steel surface defect on-line measuring device |
| CN111751384A (en) * | 2020-07-10 | 2020-10-09 | 宝武集团马钢轨交材料科技有限公司 | Online detection system and detection method for surface defects of round steel |
| CN113340196A (en) * | 2021-05-31 | 2021-09-03 | 山东电工电气集团有限公司 | Intelligent power angle steel detection system and method based on image recognition |
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| CN205184420U (en) * | 2015-11-24 | 2016-04-27 | 济南光先数控机械有限公司 | A angle steel or H shaped steel on -line measuring device for numerical control production line |
| CN109827968A (en) * | 2019-01-10 | 2019-05-31 | 常州工学院 | Lithium battery film thickness and detection method of surface flaw and device based on conveyer belt |
| CN110220921A (en) * | 2019-05-22 | 2019-09-10 | 武汉科技大学 | A kind of steel tube surface image collecting device and acquisition method based on machine vision |
-
2019
- 2019-10-22 CN CN201911006975.4A patent/CN110793972A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205184420U (en) * | 2015-11-24 | 2016-04-27 | 济南光先数控机械有限公司 | A angle steel or H shaped steel on -line measuring device for numerical control production line |
| CN109827968A (en) * | 2019-01-10 | 2019-05-31 | 常州工学院 | Lithium battery film thickness and detection method of surface flaw and device based on conveyer belt |
| CN110220921A (en) * | 2019-05-22 | 2019-09-10 | 武汉科技大学 | A kind of steel tube surface image collecting device and acquisition method based on machine vision |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111413347A (en) * | 2020-04-28 | 2020-07-14 | 河北鑫达钢铁集团有限公司 | H shaped steel surface defect on-line measuring device |
| CN111751384A (en) * | 2020-07-10 | 2020-10-09 | 宝武集团马钢轨交材料科技有限公司 | Online detection system and detection method for surface defects of round steel |
| CN111751384B (en) * | 2020-07-10 | 2021-10-12 | 宝武集团马钢轨交材料科技有限公司 | Online detection system and detection method for surface defects of round steel |
| CN113340196A (en) * | 2021-05-31 | 2021-09-03 | 山东电工电气集团有限公司 | Intelligent power angle steel detection system and method based on image recognition |
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Application publication date: 20200214 |