CN103658197A - Shape checking device of steel bar and shape checking method of steel bar - Google Patents
Shape checking device of steel bar and shape checking method of steel bar Download PDFInfo
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- CN103658197A CN103658197A CN201310333296.4A CN201310333296A CN103658197A CN 103658197 A CN103658197 A CN 103658197A CN 201310333296 A CN201310333296 A CN 201310333296A CN 103658197 A CN103658197 A CN 103658197A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/50—Depth or shape recovery
- G06T7/543—Depth or shape recovery from line drawings
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
- G06T7/0004—Industrial image inspection
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/60—Analysis of geometric attributes
- G06T7/62—Analysis of geometric attributes of area, perimeter, diameter or volume
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30108—Industrial image inspection
- G06T2207/30136—Metal
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Abstract
According to the invention, an optical method is adopted for reliably checking dimension abnormity of steel bar which passes through rolling of a steel bar rolling production line. The shape checking device (10) is used for checking the shape of the steel bar (W) which is rolled by a steel rolling machine (7), wherein the shape checking device (10) of the steel bar is provided with the components of: a light illuminating part (11) which irradiates light cutting line (S) in a manner of crossing with a movement direction of the steel bar (W); a photographing part (12) which photographs the steel bar (W) that is irradiated by the light cutting line (S) by means of a photographing lens (13); and a shape detecting part (15) which detects the shape of the steel bar (W) through applying a triangle measurement method principle on the light cutting line (S) in the image that is photographed by the photographing part (12).
Description
Technical field
The present invention relates to the device and method in bar steel rolling production line, the shape of the bar steel part in rolling being checked.
Background technology
In the bar steel rolling equipment (bar steel rolling production line) of bar steel part of being manufactured bar, wire rod etc. by steel discs such as steel billets, as a rule, from upstream side, dispose successively: heating furnace, rough rolling device, intermediate rolling device, finish-rolling device.In the rolling line of rolled wire, in the downstream of finish-rolling device, be provided with water-cooled band, pinch roll, wrap-up.In the rolling line of rolling bar steel, in the downstream of finish-rolling device, be disposed with fixed size scissors (cutting off equipment), water-cooled band, cooling bed.
About the bar steel part being produced by above-mentioned steel rolling production line, sometimes produce flaw on the surface of product etc.In addition, sometimes produce abnormal, wide abnormal (the exceeding dimensional tolerance range) of part of section shape.Also exist shape anomaly, the size of section of the generation be accompanied by burr etc. abnormal.When existing above-mentioned shape anomaly, size abnormal, as product, cannot dispatch from the factory.
The method that the surface blemish producing as the surface at bar steel part checks, for example, has the disclosed technology of patent documentation 1.
In patent documentation 1, disclose and on bar steel rolling production line, use optical means and method that effects on surface flaw detects.This patent documentation discloses the method detecting in the defect of utilizing hot rolling to utilize in manufacturing the operation of the metal materials such as steel plate, bar steel or steel pipe optical method to produce the surface at product, and is the detection method of the blemish that detects of the position effects on surface defect in the stage as thin as a wafer of the oxide in checking subject surface.
In addition, as the method that the shape anomaly of bar steel part is detected, for example, also there is the disclosed technology of patent documentation 2.This patent documentation discloses bar steel shape inspection apparatus as described below, and it possesses: base station; Pair of workpieces clamping section, it is located at described base station, and to becoming, checks that the bar steel of object carries out clamping and release; Video camera workbench, it is located at described base station, and the bar steel of the inspection area between described pair of workpieces clamping section is taken from top along described moving axially of steel; Illumination working table, it is located at described base station, and synchronizes and moving axially and from below, described steel being thrown light on along described steel with described video camera workbench; Advance and retreat mobile module, it is located at described base station, and described the steel clamping with respect to described Workpiece clamping portion is free to advance or retreat, described advance and retreat mobile module possesses a pair of V module, during the inspection that described a pair of V module is taken the bar steel of described inspection area at described video camera workbench in going-back position, be accompanied by the end of described inspection and move to progressive position, thereby in this forward position, described steel supported; Swing mechanism, it is located at described advance and retreat mobile module, and by described V module, receive described steel while unclamping in described Workpiece clamping portion, make this progressive position upwards rotate predetermined angular in the week of described steel, and change the check point of described steel and this steel is paid in described Workpiece clamping portion.
Technical literature formerly
Patent documentation
Patent documentation 1: TOHKEMY 2001-242089 communique
Patent documentation 2: TOHKEMY 2009-115744 communique
Brief summary of the invention
The problem that invention will solve
By using the technology of described patent documentation 1, may detect manufactured the flaw that the surface etc. of shaping steel produces by bar steel rolling production line.Yet even if use this technology, the size abnormal, the generation that is accompanied by burr etc. of abnormal, width dimensions of section shape that bar steel also cannot be detected is abnormal.
The technology of patent documentation 2 is technology that the shape anomaly of bar steel is detected, but the technology that only openly off-line checks is not open to the technology checking in manufacture bar steel midway on bar steel rolling production line.
Summary of the invention
Therefore, the present invention is point in view of the above problems, and its object is to provide a kind of and uses optical method and reliably to the technology of utilizing the size of the bar steel part in the rolling of bar steel rolling production line extremely to check.
Solution
In order to realize described object, following technical scheme is described in the present invention.
That is, shape inspection apparatus of the present invention is the device to utilizing the shape of the bar steel part in rolling mill rolling to check, it is characterized in that, the shape inspection apparatus of described steel part possesses: to described steel part, irradiate the illumination part that light cuts off line; By capture lens, to having irradiated described light, cut off the shoot part that the bar steel part of line has been taken; With respect to the light being written in the image of being taken by described shoot part, cut off line and apply the SHAPE DETECTION portion that triangulation ratio juris detects the shape of bar steel part.
The application's applicant in view of exploitation by online when utilizing the device that the shape of the bar steel part in the hot rolling of bar steel rolling production line checks the situation of the bar steel part red heat in hot rolling, consider to utilize the optical pickocff of passive mode (self-luminous mode).Yet, the optical pickocff of self-luminous mode because of the temperature of bar steel part cause detection position (coordinate) the variation unstable or surface state of the existence based on scale etc. at the wide both ends of part also cause position probing and SHAPE DETECTION unstable be apparent.Come in fact, in the optical pickocff of self-luminous mode, also exist and cannot carry out the such problem of shape measure.
Therefore, the application's applicant expects adopting sensor self to send the optical pickocff of the active mode of the light for measuring.The optical pickocff of the active mode using in the present invention possesses: the mode of intersecting with the transfer direction with bar steel part is irradiated the illumination part that light cuts off line; To having irradiated light, cut off the shoot part that the bar steel part of line has been taken by capture lens; For the light being written in the image of being taken by shoot part, cut off line and apply the SHAPE DETECTION portion that triangulation ratio juris detects the shape of bar steel part.
Preferably, described capture lens is telecentric lens.
Preferably, described illumination part possesses green laser light source.
On the other hand, while carrying out the inspection of shape of bar steel part when using the shape inspection apparatus of above-mentioned bar steel part, the image that shoot part based on by described shape inspection apparatus obtains, brightness more than having background luminance and two points that are present in end extract as end positions coordinate, diameter using the difference of the end positions coordinate extracting as bar steel part and detecting, carries out the inspection of the shape of bar steel part based on detected diameter.
In addition, while carrying out the inspection of shape of bar steel part when using the shape inspection apparatus of above-mentioned bar steel part, in the image obtaining at the shoot part by described shape inspection apparatus, utilize least square method to carry out the matching for the formula of circle, the formula of the circle based on being obtained by described matching, obtain the diameter of bar steel part, and based on the diameter of obtaining, carry out the inspection of the shape of bar steel part.
In addition, while carrying out the inspection of shape of bar steel part when using the shape inspection apparatus of above-mentioned bar steel part, the image that shoot part based on by described shape inspection apparatus obtains, brightness more than having background luminance and two points that are present in end extract as end positions coordinate, the end positions coordinate of extraction is made as to " actual measurement end positions coordinate ", in the image obtaining at the shoot part by described shape inspection apparatus, utilize least square method to carry out the matching for the formula of circle, according to the formula of the circle being obtained by described matching, obtain the end positions coordinate of bar steel part, and the end positions coordinate of obtaining is made as to the coordinate that original end positions should exist, " there is end positions coordinate ", in the situation that the difference of " actual measurement end positions coordinate " that obtain and " having end positions coordinate " is different more than permissible value, the shape that is judged as bar steel part exists abnormal.
Preferably, when carrying out described matching, extract the apex coordinate that light cuts off line, the light of the scope of the apex coordinate that service range extracts in regulation cuts off each point coordinates of line, utilizes least square method to implement the matching for the formula of circle.
Invention effect
According to the present invention, can use optical method and reliably to utilizing shape anomaly, the size of the bar steel part in the rolling of bar steel rolling production line extremely to check.
Accompanying drawing explanation
Fig. 1 is the overall diagram of manufacturing the bar steel rolling production line of bar steel.
Fig. 2 means the figure of the summary of shape inspection apparatus.
Fig. 3 means the figure of an example of the image being taken.
Fig. 4 is for the figure of method of the width measurements of bar steel part is described.
Fig. 5 is for illustrating for the figure to bias, the damaged method detecting.
Description of reference numerals is as follows:
Article 1, steel rolling production line
2 heating furnaces
3 rough rolling devices
4 middle column rolling devices
5 finish-rolling devices
6 cooling devices
7 rolling pedestals
8 Rolling rollers
9 coiler devices
10 form measuring instruments
11 illumination parts
12 shoot parts
13 capture lens
14 optical light filters
15 SHAPE DETECTION portions
W bar steel part
S light cuts off line
The specific embodiment
Below, based on accompanying drawing, embodiments of the present invention are described.
Fig. 1 is the overall diagram of manufacturing the bar steel rolling production line 1 of bar steel.
As shown in Figure 1, bar steel rolling production line 1 is for the manufacture of bar steel part W.It should be noted that, the bar steel part W that bar steel rolling production line 1 is manufactured can be bar, can be also wire rod.
Bar steel rolling production line 1 from upstream side downstream side be disposed with: for heating heating furnace 2, rough rolling device 3, middle column rolling device 4, finish-rolling device 5, the cooling device 6 (water-cooled band) of the steel discs such as steel billet.
Rough rolling device 3, middle column rolling device 4, finish-rolling device 5 possess respectively a plurality of rolling pedestals 7, and are provided with the Rolling roller 8 for rolled bar iron part W at rolling pedestal 7.
In bar steel rolling production line 1, first, to the interior importing of heating furnace 2, become the raw-material steel billet (steel disc) of bar steel and heat, the steel billet after heating is eliminated rust.Then, the size of utilizing rough rolling device 3 that the steel disc roughing after rust cleaning is extremely stipulated.The Rolling roller 8 of rough rolling device 3 is HV to be arranged, and replaces on one side to change to depress direction and be rolled.For middle column rolling device 4, finish-rolling device 5, utilize each Rolling roller 8 with section shape, by ellipse, to be become the mode rolling of round shape, and be finally rolled into the shape (for example, toroidal) as target.Be rolled bar steel part W for the toroidal device 6 that is cooled cooling, if wire rod by coiler device 9, reel, if bar steel part utilizes fixed size scissors (not shown) to be cut to the length of regulation.
In addition, in of the present invention steel rolling production line 1, for shape, the sectional width size (sometimes wide also referred to as part) of the bar steel part W in rolling detects and be provided with form measuring instrument 10.Form measuring instrument 10 is located at the side that of finish-rolling device 5 for example, place is set and does not limit.
Below, form measuring instrument 10 is described in detail.
Fig. 2 is the figure that schematically shows the structure of form measuring instrument 10.
The laser irradiating from illumination part 11 has the roomy width of part than bar steel part W, and its wavelength is for example for wavelength 532nm left and right, the laser that is known as green laser are desirable.
In addition, form measuring instrument 10 has the shoot part 12 of having taken having irradiated the surface of the bar steel part W of light cut-out line S.The in the situation that of present embodiment, shoot part 12 consists of ccd video camera (region video camera).Illumination part 11 and shoot part 12 become the configuration of the light cross-section method (triangulation) that is provided with angle α.
The capture lens 13 that is installed on this shoot part 12 is telecentric lens.Telecentric lens is to make chief ray form the lens parallel with optical axis at lens one-sided, in the situation that using telecentric lens to take, have feature as described below, even if subject moves up, is offset on above-below direction in front and back, subject size can change yet.
Also can only make in the front surface setting of this telecentric lens to irradiate the optical light filter 14 (interference light filter) of the green laser transmission coming from illumination part 11.
One example of the image photographing shown in Figure 3.The left upper end of image is initial point, by lateral set, is X-axis, and above-below direction is set as Y-axis.From the image of Fig. 3, so that be irradiated to the light of whole the cross direction of bar steel part W, cut off the mode that line S is mirrored, set the focal length that place, capture lens 13 are set of illumination part 11 and shoot part 12 etc.
By comprising the light cut-out line S being taken by shoot part 12, at interior image, to shape test section 15, carry.In SHAPE DETECTION portion 15, the image sent here is imported to framework memory, utilize this framework memory and be built-in with the computer of this framework memory, the image of being taken by shoot part 12 is implemented to the processing of binaryzation etc., only extract thus bright dipping and cut off line S.
The light extracting being cut off to the information (view data) of line S carries to the handling part that forms the computer of SHAPE DETECTION portion 15.Computer is personal computer etc., in this computer, by the light to extracting, cuts off surperficial height distribution (shape), the part wide (sectional width size) that line S application triangulation ratio juris is calculated bar steel part W.
Yet for the 3D shape of detector bar steel part W correctly, it is indispensable correctly releasing the coordinate that light cuts off line S.Especially wide for the part of detector bar steel part W correctly, need to correctly release the coordinate that light cuts off the both ends (upper and lower end parts) of line S.
In the SHAPE DETECTION portion 15 of present embodiment, use following judgement to process (judgement is processed 1～judgement and processed 4), the wide mensuration of correct part, the shape anomaly that is accompanied by eccentric or damaged etc. existence are detected.
[judgement processes 1]
First, as judgement, process 1, from the image being obtained by shoot part 12, two points in brightness more than background luminance, that be present in end (upper end, bottom) are extracted as end positions, and export the difference of this end positions (two ends coordinate) as part wide (sectional width).Wide in order correctly to know part, preferably the precision with sub-pix detects the end positions on image.
[judgement processes 2]
In addition, as judgement, process 2, as shown in Fig. 4 (a), near the initial point of the image being obtained by shoot part 12, set for example the exploration region of 100 pixel * 100 pixels (in (a) of Fig. 4, being denoted as the rectangle of (1)).In this rectangular area, calculate the mean value of brightness, by the brightness value obtaining brightness as a setting (threshold value).Then, in each scan line along directions X, explore the location of pixels that there is the brightness more than background luminance calculating and become high-high brightness on a line.Along Y-direction, progressively carry out successively this scanning (being denoted as the processing of (2) in (b) of Fig. 4).
Then, about the location of pixels of being explored by each scan line, using the detected location of pixels of the scan line by adjacent as one group of line graph, identify, the length of the Y-direction of this group of line graph light that for example lines more than continuous 900 pixels is made as bar steel part is cut off to line S.The light obtaining being cut off to the location of pixels at the both ends of line S obtains as bound position.In this case, preferably with sub-pix order, obtain coordinate position.
According to above-mentioned judgement, process 1, judge and process 2, with the surface state of bar steel part W independently, only according to the geometric condition of bar steel part W (existence range of bar steel part W), carry out reference section width, the part that therefore can long-range and correctly obtain the bar steel part W in rolling is wide.
It should be noted that, in the situation that the bar steel part W in rolling, even the in the situation that of being difficult to stably detect two ends coordinate position in effects such as shift in position, vibrations, in form measuring instrument 10 of the present invention, because capture lens 13 is telecentric lens, even if therefore bar steel part W moves up in front and back or is offset on above-below direction, the also not change of size of bar steel part W.Therefore, always can correctly obtain the part of bar steel part W wide.
Yet in the situation that the bar steel part W in rolling, both ends are crooked, as long as can ideally extract the light corresponding with both ends, cut off line S.About corresponding with this situation and correctly detect the method for section size, as judgement, process 3 and narrate.
[judgement processes 2 ']
Yet, as the wide processing of part of obtaining the bar steel part W in rolling, also can adopt the method (judgement processes 2 ') of the following stated to replace judgement to process 2.
First, process 2 in the same manner with judgement, in (a) of Fig. 4, in the rectangular area as exploration region, calculate the mean value of brightness, by the brightness value obtaining brightness as a setting (threshold value).Then, in each scan line along directions X, have the brightness more than background luminance calculating, and all extract the pixel with the brightness more than background luminance calculating, all pixels that extract of take are obtained average brightness value as object.Along Y-direction, carry out successively this scanning.
Then, the arrangement of the average brightness value that the number of scanning lines of Y-direction is divided (data arrangement) utilizes respectively the differential (difference) of adjacent brightness value, extract the coordinate of differential value maximum, and using the coordinate extracting (upper and lower two coordinates) as light, cut off the two ends coordinate figure of line S.By obtaining the upper allowance below nominal size of the two ends coordinate figure obtaining, the part that can obtain bar steel part W is wide.
[judgement processes 3]
As judgement, process 3, as shown in Fig. 4 (b), in the image being obtained by shoot part 12, extract the apex coordinate (peak) that light cuts off line S.Then, each point coordinates that the light of the scope of apex coordinate ± β angle that service range extracts (β is 90 ° to the maximum, obtains by experiment and the value set) cuts off line S, utilizes the formula (X of least square method to circle
2+ Y
2=R
2) carry out matching.The formula of the circle based on being obtained by this matching operation, obtains 2R (diameter) the most accurately, and part is wide.
It should be noted that, by the value of β being set littlely (° left and right, β=45～60), can obtain more accurately the wide value of part.
[judgement processes 4]
Yet, in the situation that the shape of the bar steel part W after rolling is monitored, only by wide " eccentric (material of bar steel part W is eccentric towards a side) ", " damaged (of bar steel part W forms spill) " that cannot manage of part, become problem (with reference to Fig. 5).In the situation that the skew of the central shaft of the bar steel by rolling mill, if offset and damaged amount become equal extent, do not change as the wide value of part, but as rolled form and defective (NG part).
Therefore,, in the shape measure portion of present embodiment, carry out the judgement shown in Fig. 5 and process 4.
In judgement processes 4, first, with judgement process 1, judgement processes 2 to obtain part wide, and the end positions coordinate (upper end coordinate and lower end coordinate) of calculating bar steel part W and carry out record.To process 1, the 2 end positions coordinates that obtain as " the end positions coordinate of surveying out " by judgement.
In addition, use judgement processing 3 and carry out the matching based on least square method, obtaining round formula (X
2+ Y
2=R
2).According to the formula of the circle of obtaining, obtain part wide, and obtain the end positions coordinate of bar steel part W.By judgement, process the 3 end positions coordinates that obtain and can think " coordinate that original end positions should exist ".
On this basis, the coordinate (X, Y) that should exist in original end positions (processing 3 coordinate figures that obtain by judgement), different more than permissible value with the end positions coordinate of surveying out (X ', Y ') (by judgement processing 1,2 coordinate figures that obtain) in the situation that, are judged as and have shape anomaly.
Particularly, (X ', Y ') is positioned at than the outer position of original end positions (X, Y) in the situation that the two ends coordinate position of surveying out, is judged as " existing eccentric ".In addition, (X ', Y ') is positioned at than the inner position of original end positions (X, Y) in the situation that the end positions of surveying out, is judged as " existing damaged ", thereby is judged as substandard product.
As mentioned above, by using the shape inspection apparatus 10 of bar steel part W, can to the size of the bar steel part W by 1 rolling of bar steel rolling production line, extremely reliably check reliably, this shape inspection apparatus 10 possesses: in the crossing mode of the transfer direction with bar steel part W, irradiate the illumination part 11 that light cuts off line S; To having irradiated light, cut off the shoot part 12 that the bar steel part W of line S has taken by telecentric lens 13; With respect to the light writing in the image of being taken by shoot part 12, cut off line S and apply the SHAPE DETECTION portion 15 that triangulation ratio juris detects the shape of bar steel part W.
It should be noted that, the whole points that will be appreciated that this disclosed embodiment are all illustrations and not limiting.Especially in this disclosed embodiment, clearly not disclosed item, such as the size of operating condition, operating condition, various parameter, construct, weight, volume etc. within not departing from the scope that those skilled in the art implement conventionally, if the value that adopts common those skilled in the art can easily expect.
Claims (7)
1. a shape inspection apparatus for bar steel part, the shape inspection apparatus of this steel part is the device to utilizing the shape of the bar steel part in the rolling of bar steel rolling production line to check, it is characterized in that,
The shape inspection apparatus of described steel part possesses:
Illumination part, it irradiates light in the mode of intersecting with described steel part and cuts off line;
Shoot part, its bar steel part that cuts off line by capture lens to having irradiated described light is taken; And
SHAPE DETECTION portion, it cuts off line and applies triangulation ratio juris the shape of bar steel part is detected for the light being written in the image of being taken by described shoot part.
2. the shape inspection apparatus of according to claim 1 steel part, is characterized in that,
Described capture lens is telecentric lens.
3. the shape inspection apparatus of according to claim 1 and 2 steel part, is characterized in that,
Described illumination part possesses green laser light source.
4. a shape inspection method for bar steel part, is characterized in that,
When right to use requires the shape inspection apparatus of the bar steel part described in any one in 1 to 3 and while carrying out the inspection of shape of bar steel part,
The image that shoot part based on by described shape inspection apparatus obtains, brightness more than having background luminance and two points that are present in end extract as end positions coordinate, diameter using the difference of the end positions coordinate extracting as bar steel part and detecting, carries out the inspection of the shape of bar steel part based on detected diameter.
5. a shape inspection method for bar steel part, is characterized in that,
When right to use requires the shape inspection apparatus of the bar steel part described in any one in 1 to 3 and while carrying out the inspection of shape of bar steel part,
In the image obtaining at the shoot part by described shape inspection apparatus, utilize least square method to carry out the matching for the formula of circle, the formula of the circle based on being obtained by described matching, obtains the diameter of bar steel part, and based on the diameter of obtaining, carries out the inspection of the shape of bar steel part.
6. a shape inspection method for bar steel part, is characterized in that,
When right to use requires the shape inspection apparatus of the bar steel part described in any one in 1 to 3 and while carrying out the inspection of shape of bar steel part,
The image that shoot part based on by described shape inspection apparatus obtains, the brightness more than having background luminance and two points that are present in end extract as end positions coordinate, the end positions coordinate of extraction are made as to " actual measurement end positions coordinate ",
In the image obtaining at the shoot part by described shape inspection apparatus, utilize least square method to carry out the matching for the formula of circle, according to the formula of the circle being obtained by described matching, obtain the end positions coordinate of bar steel part, and the end positions coordinate of obtaining is made as to coordinate that original end positions should exist, " has end positions coordinate "
In the situation that the difference of " actual measurement end positions coordinate " that obtain and " having end positions coordinate " is different more than permissible value, be judged as the shape anomaly that has bar steel part.
7. according to the shape inspection method of the bar steel part described in claim 5 or 6, it is characterized in that,
When carrying out described matching, extract the apex coordinate that light cuts off line, the light of the scope of the apex coordinate that service range extracts in regulation cuts off each point coordinates of line, utilizes least square method to implement the matching for the formula of circle.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012193149A JP5828817B2 (en) | 2012-09-03 | 2012-09-03 | Shape inspection method for steel bars |
| JP2012-193149 | 2012-09-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103658197A true CN103658197A (en) | 2014-03-26 |
| CN103658197B CN103658197B (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310333296.4A Active CN103658197B (en) | 2012-09-03 | 2013-08-02 | The shape inspection apparatus of bar steel part and the shape inspection method of bar steel part |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5828817B2 (en) |
| KR (1) | KR101622444B1 (en) |
| CN (1) | CN103658197B (en) |
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| CN112313019A (en) * | 2018-06-28 | 2021-02-02 | 杰富意钢铁株式会社 | Device and method for detecting width of non-pressed part of steel |
| CN114427839A (en) * | 2021-12-13 | 2022-05-03 | 中国船舶重工集团公司第七一六研究所 | Method and system for measuring cylinder diameter and projection height based on line structured light |
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| CN112037194B (en) * | 2020-08-31 | 2023-04-07 | 中冶赛迪信息技术(重庆)有限公司 | Method, system, equipment and medium for detecting disordered steel of cooling bed |
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| CN111745177A (en) * | 2019-03-29 | 2020-10-09 | 日本碍子株式会社 | Punching device and punching method for cylindrical workpiece, manufacturing method for cylindrical product, and inspection method for cylindrical workpiece |
| CN114427839A (en) * | 2021-12-13 | 2022-05-03 | 中国船舶重工集团公司第七一六研究所 | Method and system for measuring cylinder diameter and projection height based on line structured light |
| CN114427839B (en) * | 2021-12-13 | 2024-03-19 | 中国船舶集团有限公司第七一六研究所 | Method and system for measuring diameter of cylinder and height of protrusion based on line structured light |
| CN116645476A (en) * | 2023-07-12 | 2023-08-25 | 小羽互联智能科技(长沙)有限公司 | Rod three-dimensional data model reconstruction method and system based on multi-view vision |
| CN116645476B (en) * | 2023-07-12 | 2023-10-24 | 小羽互联智能科技(长沙)有限公司 | Rod three-dimensional data model reconstruction method and system based on multi-view vision |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5828817B2 (en) | 2015-12-09 |
| KR101622444B1 (en) | 2016-05-18 |
| JP2014048226A (en) | 2014-03-17 |
| KR20140031138A (en) | 2014-03-12 |
| CN103658197B (en) | 2016-01-06 |
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