CN101530864A - Shape calculating system - Google Patents
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- CN101530864A CN101530864A CN200810108431A CN200810108431A CN101530864A CN 101530864 A CN101530864 A CN 101530864A CN 200810108431 A CN200810108431 A CN 200810108431A CN 200810108431 A CN200810108431 A CN 200810108431A CN 101530864 A CN101530864 A CN 101530864A
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Abstract
The present invention provides a shape calculating system which can judge dynamic deformation of products when a roller forms by a high speed camera momentarily, and then automatically calculate and correct parameter of roller on the production line. Shape of a metal product (7) is cut on stipulated length by a movable cutter (5) after continuous formation by a roller forming machine (3), and a shape calculating system 21 that used for image processing comprises a laser exposure device (25) that laser exposes above a movable metal product (7), a camera device (23) that shoots at the laser exposure position of the metal product (7), and a calculating device (26) that process image information captured by the camera device (23), wherein the camera device (23) shoots at downstream of the movable cutter (5) for the metal product (7), and the calculating device (26) calculates deflection of the metal product (7) relative to its basical shape according to image information time variation.
Description
Technical field
The present invention relates to produce the shape calculating system of roll on line, specially refer to high speed, automation, high-quality with the roll forming process and turn to purpose, the dynamic deformation of goods in the time of being shaped by the instantaneous judgement roll of high-speed camera, and calculate the shape calculating system of the online roll of the parameter that is used to correct it automatically.
Background technology
Introduce on plant produced line now that production equipment miscellaneous, one of example are arranged is the cold roll forming machine.The cold roll forming machine is to make flat metal plate by having two processing rolls of regulation shape, is referred to as forming rolls and forms the device of long size goods.But, will cause goods to see significant abnormal such as warpage, bending, distortion take place distortion on the whole because of the wearing and tearing of environment and machinery, material etc. because the product of roll forming machine is long size.The amount of this class abnormal deformation becomes the inspection benchmark of judging the product quality then.In the forming process of current forming rolls, judge and promptly stop the operation of production line when abnormal deformation is arranged when the product that processes being out of shape in the instrumentation, rule of thumb change the aligning shape of the working roll of forming machine by skilled skilled worker.In this class antidote, the experience skilled worker is arranged is absolute necessary by manually finely tuning by skilled, and also need expend a lot of times in the work that relies on these parts of skilled worker's experience.Like this, owing to need to reduce operating efficiency, and have to depend on the quality management of the non-quantitation of skilled craftsman's record with adjusting for a long time.Under such background, just urgent wish to have can with the short time quantitative detect distortion, can automatically adjust the roll shape correction system of Working position.
To the cold roll forming machine of above-mentioned such energy high-speed production, requirement can take into account high yield and high-quality.Check in operation at this class production line, for ensureing the problem of productivity ratio, with handle contactless of image and be that full automatic inspection technology serves as effective, currently just carrying out many-sided research with quality.
But when cold roll forming machine high-speed and continuous turns round, because its long size shape, always when being accompanied by vibration at high speed, transport molded article.For this reason, in determination object being assumed to quasi-static image inspection technology in the past, just be difficult to correctly its section shape of instrumentation and position etc.On the other hand,, carried out many researchs in recent years with high-speed camera of the visual capacity that far exceeds people's recognition speed in image processing field, report have realized surpassing 1000[fps] example of disposal ability.
In addition, be 2 video cameras to be set in shape check system in the past along transport path, calculate from the difference of each video camera gained image information, instrumentation shape in view of the above.
Summary of the invention
The object of the present invention is to provide such shape inspection method on line, it detects the deflection of goods quantitatively by the video camera more than at least one, automatically infer house of correction must the processing setting value.
In order to achieve the above object, shape calculating system of the present invention is to after the progressive forming of roll forming machine and by the movable cutting-off machine shape of the metallic article that cuts off of length in accordance with regulations, handle the shape calculating system that carries out instrumentation with image.The structure that this system adopts comprises: the calculation element that the camera head of making a video recording for the position of above-mentioned laser irradiation with the laser irradiation device of laser irradiation, to above-mentioned metallic article from the top of the metallic article that moves, the image information that above-mentioned camera head is obtained are handled, above-mentioned camera head is in above-mentioned cutting machine downstream above-mentioned metallic article to be made a video recording, and the aforementioned calculation device is based on the deflection with respect to its benchmark shape of the above-mentioned metallic article of time variation instrumentation of above-mentioned image information.
In addition, adopt such structure: the shooting of above-mentioned camera head is the front end from the above-mentioned metallic article that cuts off.
In addition, adopt such structure: the shooting of above-mentioned camera head is to carry out between above-mentioned movable cutting-off machine stops.
In addition, adopt such structure: above-mentioned laser irradiation device irradiating laser directly over the above-mentioned metallic article, above-mentioned camera head with respect to the horizontal plane in accordance with regulations angle direction are made a video recording to the surface of above-mentioned metallic article.
In addition, adopt such structure: above-mentioned metallic article is the plate-like piece with Rack, and the wide coordinate time to two ends of metallic article that the aforementioned calculation device is tried to achieve according to above-mentioned image information changes, and comes the deflection of the above-mentioned metallic article of instrumentation.
In addition, adopt such structure, above-mentioned deflection be along the warpage of above-mentioned metallic article length direction, crooked with twist among one of at least deflection.
In addition, adopt such structure:
The aforementioned calculation device use according to W (t)=-(Z1 (t)+Z2 (t))/2 calculated values of trying to achieve, with the deflection of warpage parameter W (t) with the warpage that judges, Z1 in the formula (t) be constantly during t1 above-mentioned metallic article wide in the short transverse coordinate figure of an end, the wide short transverse coordinate figure of above-mentioned metallic article when Z2 in the formula (t) be moment t2 to the middle other end.
In addition, adopt such structure: the aforementioned calculation device is used according to C (t)=(Y1 (t)+Y2 (t))/2 calculated values of trying to achieve, with the deflection of bending parameters C (t) with the bending that judges, Y1 in the formula (t) be constantly during t1 above-mentioned metallic article wide in the width coordinate figure of an end, the wide width coordinate figure of above-mentioned metallic article when Y2 in the formula (t) be moment t2 to the middle other end.
In addition, adopt such structure: the aforementioned calculation device is used the calculated value according to T (t)=Z1 (t)+Z2 (t) tries to achieve, to twist the deflection of parameter T (t) with the distortion that judges, Z1 in the formula (t) be constantly during t1 above-mentioned metallic article wide in the short transverse coordinate figure of an end, the wide short transverse coordinate figure of above-mentioned metallic article when Z2 in the formula (t) be moment T2 to the middle other end.
In addition, adopt such structure: each parameter of above-mentioned deflection is a plurality of instrumentation results that follow time course to try to achieve with regard to metallic article, implements four approximations of least square method.
Have again, adopt the roll formation system of this spline structure, it has above-mentioned shape calculating system, make roll forming machine that the tabular metal material is shaped, with the metallic article that the is shaped mobile cutting machine that cuts off of length in accordance with regulations, this roll formation system is characterised in that: be provided with the turks that is used to correct the metallic article shape in above-mentioned roll forming machine, adjust the setting of this turks according to the deflection of the metallic article of above-mentioned shape calculating system instrumentation.
In addition, adopt such structure: the setting of above-mentioned turks is to adjust position and the angle of revolution of above-mentioned metallic article in transport path.
In addition, adopt such structure, the adjustment amount of above-mentioned turks is that the parameter that each parameter of metallic article deflection that above-mentioned shape calculating system is tried to achieve utilizes Jacobi's database to be transformed to adjustment amount obtains.
In addition, adopt such structure: above-mentioned mobile cutting machine is that the actuator by one-way only operation moves the cutter that is used to cut off.
In addition, adopt such structure: above-mentioned actuator is a motor, and the crank mechanism that is connected by motor therewith moves above-mentioned cutter.
In addition, adopt such structure: the cut-out chassis of above-mentioned motor and the above-mentioned cutter of crank structure mobile-bearing.
In addition, adopt such structure: above-mentioned Motor Control becomes to make the translational speed of the translational speed of above-mentioned cut-out chassis and above-mentioned metallic article synchronous.
In addition, adopt such structure: above-mentioned motor is a servomotor.
In addition, adopt such structure: gyroaxis combines with above-mentioned motor in the above-mentioned crank mechanism, and eccentric shaft combines with above-mentioned cut-out chassis.
In addition, adopt such structure: above-mentioned motor stops operating in the shooting operation of being undertaken by above-mentioned camera head.
The present invention can be used for forming the system of the shape of mach roll forming spare with the high speed instrumentation by roll, also can be used for carrying out the system that the roll forming machine is adjusted according to the instrumentation result.
Description of drawings
Fig. 1 generally shows the shape calculating system and the roll forming machine of an embodiment of the present invention.
Fig. 2 generally shows the position relation of shape calculating system and the roll forming machine and the mobile cutting machine of this form of implementation.
Fig. 3 is the oblique view that makes the roll forming machine that the instrumentation object metallic article of this form of implementation is shaped.
Fig. 4 is the oblique view of the position relation of explanation roll forming machine shown in Figure 3 and payoff reel and mobile cutting machine.
Fig. 5 shows the bright turks that is assembled in the roll forming machine, and Fig. 5 (A) is an oblique view, and Fig. 5 (B) generally is shown in the interior allocation position of machine that roll is shaped.
Fig. 6 shows the laser of bright irradiation metallic article and the oblique view of coordinate figure thereof.
Fig. 7 is the figure of the X-Y coordinate figure of detected laser;
Fig. 8 represents the oblique view of relative metallic article coordinate system;
Fig. 9 explanation is used for coming according to the deformation parameter of the metallic article of obtaining the algorithm of algorithm correction value.
Figure 10 shows the mean value and the deviation of the deformation parameter under the position of bright each turks, Figure 10 (A) show bright and this form of implementation instrumentation the relevant deviation of warpage and Figure 10 (B) shows the deviation of bright manual instrumentation, Figure 10 (C) show bright and this form of implementation instrumentation the relevant deviation of bending and Figure 10 (D) shows the deviation of bright manual instrumentation, Figure 10 (E) shows the bright deviation relevant with the distortion of this form of implementation instrumentation and Figure 10 (F) shows the deviation of bright manual instrumentation.
Figure 11 shows the deformation parameter and the manual relation of the deformation parameter of instrumentation of the shape calculating system 21 of bright form of implementation, and Figure 11 (A) shows the relation of bright warpage, and Figure 11 (B) shows the relation of bright bending, and Figure 11 (C) shows the relation of bright distortion.
Figure 12 is the instrumentation value of the form of implementation in view of the above turks position of inferring and the comparison diagram of antilog, and Figure 12 (A) shows the situation of bright warpage, and Figure 12 (B) shows the situation of bright bending, and Figure 12 (C) shows the situation of bright distortion.
The meaning of each label is as follows among the figure:
3, the roll forming machine; 3a, turks; F, mobile cutting machine; 7, metallic article; 21, shape calculating system; 23, camera head (high-speed camera); 25, laser irradiation device; 26, calculation element.
The specific embodiment
Shape calculating system below with reference to a description of drawings form of implementation of the present invention.
[system overview]
Fig. 1 generally shows the shape calculating system 21 of this form of implementation.In this system 21, with respect to the metallic article 7 that transfers out at a high speed from roll forming machine 3, use the laser irradiation device 25 of irradiating laser, as the high-speed camera 23 of the camera head that the reverberation on metallic article 7 surfaces shone is made a video recording, as the computer 26 that receives and handle by the calculation element of camera head gained image information, by 3 d measurement the shape of described metallic article is carried out instantaneous instrumentation.The watch-dog 27 that high-speed camera 23 gained images are shown also can be set in addition.Then, the abnormal deformation amount of certified products is being carried out on the basis of quantitative assessment, the corrected value that shape correction is necessary (adjusted value) feeds back to roll forming machine 3.
[high-speed video camera system]
The high-speed camera 23 of described form of implementation adopts INCS 1030 to use as the 3 dimension position instrumentations that cut method based on light.INCS 1030 is the camera chains that are mounted with the cmos sensor of 652 * 494 pixels, done the image processing by FPGA (field programmable gate array) after, can export its image feature amount by LAN.Processing speed: 640 * 400 pixels are 240[fps], 640 * 200 pixels are 480[fps], 640 * 100 pixels are 960[fps].
High-speed camera 23 is set in place in the more downstream of the mobile cutting machine 5 in roll forming machine 3 downstreams as Fig. 2 or shown in Figure 4.Here be that warpage, crooked and the place of twisting appear in metallic article 7 easily that be shaped.In other words, in this form of implementation, an end of metallic article 7 is fixed for the cut-out metal die becomes stiff end, and the relative therewith other end promptly becomes free end, and this is prone to distortion with being compared by the supporting structure of stiff end-stiff end.It is to carry out in the moment that transports next metallic article 7 in metallic article 7 cut-outs that actual image is obtained.In more detail, cut off metallic article 7, after mobile trolley used (chassis that keeps the cut-out tooth) gets back to position of readiness, begin to obtain image by mobile cutting machine 5.This is vibrate owing to moving meeting when time in mobile trolley used the moving, and this vibration can pass to the cause of metallic article 7.
The processing capacity of INCS 1030 as described below.The image binarization that at first in certain frame, will absorb, generate corresponding to original image I (X, binary picture B Y) (X, Y).Subsequently the binary picture B that just generates (X, Y) relatively i (1,2,3 ..., 640) row calculates 0 square iM0,1 square iM1 to each row.Feature calculation position of centre of gravity iCy=iM1/iM0 according to these squares.Then according to specified threshold value m, by top coordinate, the end coordinates of the following stated calculating with respect to the directions X of image.
From i=0,0 square iM0 of sequential scanning, iM0 when beginning to surpass threshold value m i=is and iscy as the top coordinate.
From i=0,0 square iM0 of sequential scanning, iM0 with last when surpassing threshold value m i=ie and iecy as end coordinates.
Be the metallic article 7 in being shaped, carrying with the linear laser irradiation in this form of implementation, with respect to its end coordinate of each frame instrumentation, catch distortion such as warpage, bending, distortion at a high speed with INCS 1030.Also can be with a high-speed camera instrumentation shape of products distortion.
[roll forming machine]
This form of implementation is to be that example describes with the cold roll forming machine in the breaker roll forming machine 3.Obviously, the present invention is not only applicable to the cold roll forming machine, is applicable to warm-rolling or hot roll forming machine too.Fig. 3 shows the cold roll forming machine 23 of bright practical application.The cold roll forming machine 23 of practical application comprises as shown in Figure 4: carry out the uncoiler 2 of steel plate coiled material uncoiling and the cutting machine 5 that metallic article 7 is cut off with production line rate synchronous (NC).Cold roll forming machine 23 can be rolled operation with the speed of regulation.In addition, by being located at the device that is referred to as turks of the downstream part of cold roll forming machine 23, with regard in the recoverable drip molding up and down warpage, bend right and left, distortion (referring to Fig. 5) such as distortion.So when carrying out carrying out after the automatic straightening above-mentioned correction handling in cold roll forming machine 23, which type of variation the distortion that needs to understand the metallic article of adjusting through turks 3a 7 have.According to this form of implementation, can analyze on the basis that the deflection that turks 3a adjusts changes, according to the distortion of the metallic article 7 of institute's instrumentation, infer out the adjustment amount of the suitable position of turks 3a.
[handling process]
The following describes the handling process of the shape calculating system 21 of this form of implementation.The linear laser (referring to Fig. 6) of the metallic article 7 during irradiation is carried is made a video recording by shown in Figure 7 with high-speed camera 23.In addition, in this form of implementation, set the instrumentation coordinate system as shown in Figure 8.
(1) receives data from high-speed camera
In each frame, obtain top coordinate, the end coordinates of the laser of irradiation metallic article 7 continuously by high-speed camera 23.
The calculating of (2) 3 dimension coordinates, deformation parameter
(x, y is z)=(0,0,0) respectively as the front end of the throughput direction of metallic article 7, wide to mid point, with respect to the height on ground with initial point.At this moment, in the top of moment t coordinate x1 (t), y1 (t), z1 (t) with the some X on the image
1(t), Y
1(t) can try to achieve by following form:
x
1(t)＝St (1)
y
1(t)＝(X1(t)p(d/cosθ-f+z(t))/f (2)
z
1(t)＝(Y1(t)p(d/cosθ-f))/(fsinθ+pcosθ) (3)
In the following formula, S is that transporting velocity, the d of metallic article is high-speed camera 23 and distance, the θ of metallic article 7 are that the angle of cut of the optical axis of X-axis and high-speed camera 23, focal length, the p that f is lens are the pel spacing of imageing sensor.For end coordinates x2 (t), y2 (t), z2 (t), also can use X
2(t), Y
2(t) similarly try to achieve.
In addition, if define warpage parameter W (t), the bending parameters T (t) and distortion parameter T (t) of metallic article 7 with metallic article 7 wide coordinate informations, then as shown below to two ends:
W(t)＝-(z1(t)+z2(t))/2 (4)
C(t)＝(y1(t)+y2(t))/2 (5)
T(t)＝z2(t)-z1(t) (6)
This form of implementation is estimated the deflection of metallic article by calculating above-mentioned three parameters.
(3) oscillating component removes
In the process of high-rate forming goods, can produce dither in the metallic article 7 in the conveying.Result from the oscillating component of this dither in order to eliminate, to the seasonal effect in time series deflection of obtaining by above-mentioned processing (2), 4 times that implement least square method approximate after, with this approximation as deflection W (t), C (t), T (t).
(4) with respect to the calculating of the difference vector dX of a reference value
For various warpages, bending, distorted shape, can obtain with the normal shape is the difference vector dX of benchmark.This be turks position 0.00 (initial position) when locating to be shaped the summation averaging of a plurality of measured values of metallic article 7 as benchmark.
(5) calculating of the vectorial dY of rectification
The adjustment amount of turks 3a is corrected vectorial dY=[TH (W) TH (C) TH (T)] t is with deflection vector dX==[W (t) C (t) T (t)] the t souvenir is dY=JdX.The J here transforms to the transformation matrix of correcting vector, according to the analytical database (Jacobi's database) of dX and dY, tries to achieve with multiple regression analysis, by the dX of substitution instrumentation, calculates and corrects vectorial dY (referring to Fig. 9).
[demonstration test]
Use the shape calculating system 21 of this form of implementation, just (1) has carried out demonstration test with respect to accuracy of detection, (2) and the matching of manual instrumentation, the evaluation of (3) turks position adjusted value of distortion and the comparison manual instrumentation of the metallic article 7 of a reference value respectively.Instrumentation to as if wide 58.5[mm], long 2000[mm] the forming process of pipe valve.The certified products of this metallic article 7 are for length 1000[mm], deflection should be at warpage ± 0.5[mm], bending ± 1.0[mm], distortion ± 0.75[mm] in.The parameter of setting is f=17[mm], d=170mm, θ=π/4[rad].Instrumentation place in the evaluation get be decided to be instrumentation begin the back 100[mm] locate.Each position for turks, metallic article 7 as the instrumentation object of warpage, bending, distortion has been prepared 5,10,10 respectively, has carried out instrumentation of shape calculating system 21 of this form of implementation and the manual instrumentation of being engaged in by existing production line.The deformation parameter of 21 instrumentations of shape calculating system of this form of implementation is made as Wv, Cv, Tv respectively.The distortion of metallic article 7 is to add to take place man-hour under changing by the minimum pitch that can adjust turks 3a position.
[with manual instrumentation accuracy of detection relatively]
[test method]
At the shape calculating system 21 of this form of implementation and manually carried out the comparison of deviation between these two kinds of instrumentations.At this, because the shape calculating system of this form of implementation is different with the instrumentation environment of manual instrumentation.So the warpage during to Wv, Cv, Tv and static instrumentation, crooked and distortion each deformation parameter Wm, Cm and Tm, respectively with its minimum of a value be 0 and maximum be that 1 standardization compares afterwards.
Secondly, the degree of being differentiated with respect to a reference value differences in shape during the relevant change in location that makes turks 3a compares with the situation of manual instrumentation.For this reason, when the difference of a reference value and deflection be turks position 0.00 (initial position) lower deviation value more than 2 times the time, can differentiate for shape difference is arranged.Also carried out identical investigation for manual instrumentation.
[result of the test]
Figure 10 shows and understands in the metallic article 7 that the warped shapes instrumentation uses the mean value and the deviation of deformation parameter under each turks position.Figure 10 shows the deviation of bright relevant warpage, Figure 10 (A) and the deviation of (B) showing bright form of implementation and manual instrumentation respectively.The deviation of warpage is in a ratio of with manual instrumentation+and 6%, relatively become fully little value with precision prescribed.For crooked, distorted shape, shown in Figure 10 (C), (D), (E), (F), compare with manual instrumentation and to be respectively-68% ,-47%, deviation is reduced to some extent.
With respect to warped shapes the differentiation degree of a reference value and measured value is come together in table 1 below.
Table 1
In the table, I refers to that the shape calculating system 21 (vibration removing does not eliminate) of this form of implementation, the shape calculating system 21 that II refers to this form of implementation (having removed vibration removing), III refer to that manual instrumentation, ◎ represent that the differentiation rate is 100%, O represents that the differentiation rate is more than 50%, Δ represent the differentiation rate less than 50%, to represent the differentiation rate be 0% to X.According to this result, after eliminating vibration, improved the discrimination precision of distortion as can be known.In addition, similarly improved discrimination precision for crooked also having known with distortion.
[with the matching of manual instrumentation]
[experimental technique]
, affirmation correlativity between them consistent by the shape calculating system 21 instrumentation results of this form of implementation with the manual instrumentation result of existing production line reality in order to confirm.Adopt above-mentioned identical method, the minimum of a value with Ww, Cv, Tv and Wm, Cm, Tm is set at 0 respectively, and maximum is set at 1 and carries out standardization.
[experimental result]
The two relation of the deformation parameter of the deformation parameter of the shape calculating system 21 of this form of implementation and manual instrumentation is shown among Figure 11.According to shown in result, the instrumentation result of this form of implementation and the manual coefficient R between the instrumentation result.Be respectively 0.999 and 0.984 for warpage, bending, all have very high correlation as can be known.In addition, both coefficient correlations are 0.811 in distorted shape.It seems that this be because distorted shape is just little with respect to the script distortion of the variation of turks position, thereby can give deviation with bigger influence.According to above result as can be known, also be can be based on 21 pairs of warpages of shape calculating system of this form of implementation, the instrumentation that curved shape carried out to carry out instrumentation with the precision of manual instrumentation same degree.In addition, for distorted shape,, it seems and further to improve precision by increasing obtained sample number.
[evaluation of turks position adjusted value]
[test method]
Infer the position of turks 3a according to the measured value of trying to achieve, compare with true value, 9 * 23 of using of 9 * 23 of using of 4 * 23 of the metallic article of using with respect to the warped shapes instrumentation 7, curved shape, distorted shape, add up to 506 data, derive the transform that is used to ask adjusted value with three kinds of deformation datas respectively.In the transform with actual instrumentation value substitution derivation, calculate the computed position of turks.
[result of the test]
Infer out the position of turks according to the instrumentation value, will be shown among Figure 12 with the result of true value comparison.The estimated position of the turks position of the true value of the turks position of the TH here (W) expression warped shapes, THa (W) expression warped shapes.For crooked, distorted shape, similarly with TH (C), THa (C), TH (T), THa (T) expression.According to The above results, though between the presumed value at two ends and true value, produce in the warpage, curved shape error is arranged, near turks position 0.00 (reference position), obtained good result.In the working site, because purpose mainly is to finely tune near turks position 0.00 (reference position), thereby can think to adapt with the shape calculating system 21 of this form of implementation for the rectification of warpage, curved shape.Aspect distorted shape, the error of the presumed value THa (T) corresponding with true value TH (T) is big.It seems that this be because as previously described, and the distortion of distorted shape is little, deviation is had due to the big influence, thus need increase sample used in the analysis etc. from now on, to seek to improve precision.
As mentioned above, according to the present invention, for the various deflections of following goods in the vibration at high speed production, can by real-time quantitative detect, automatically infer processing setting value necessary in the rectification, shown the result who in actual roll forming process, tests, handling in the instrumentation with the image of high-speed camera, can both with the precision instrumentation goods of manual instrumentation par, calculate appropriate rectification information.
Claims (20)
1. shape calculating system, it is to after the progressive forming of roll forming machine and by the movable cutting-off machine shape of the metallic article that cuts off of length in accordance with regulations, handle the shape calculating system that carries out instrumentation with image, this system comprises: the laser irradiation device that shines with laser from the top of mobile metallic article, to the camera head of making a video recording for the position of above-mentioned laser irradiation on the above-mentioned metallic article, the calculation element that the image information that above-mentioned camera head is obtained is handled, above-mentioned camera head is in above-mentioned cutting machine downstream above-mentioned metallic article to be made a video recording, and the aforementioned calculation device is based on the deflection with respect to its benchmark shape of the above-mentioned metallic article of time variation instrumentation of above-mentioned image information.
2. shape calculating system according to claim 1 is characterized in that: the shooting of above-mentioned camera head is that the front end from the above-mentioned metallic article that cuts off begins.
3. shape calculating system according to claim 1 and 2 is characterized in that: the shooting employing of above-mentioned camera head is carried out between above-mentioned movable cutting-off machine stops.
4. according to each described shape calculating system in the claim 1 to 3, it is characterized in that: above-mentioned laser irradiation device irradiating laser directly over the above-mentioned metallic article, above-mentioned camera head with respect to the horizontal plane in accordance with regulations angle direction are made a video recording to the surface of above-mentioned metallic article.
5. according to each described shape calculating system in the claim 1 to 4, it is characterized in that: above-mentioned metallic article is the plate-like piece with Rack, the wide coordinate time to two ends of metallic article that the aforementioned calculation device is tried to achieve according to above-mentioned image information changes, and comes the deflection of the above-mentioned metallic article of instrumentation.
6. according to each described shape calculating system in the claim 1 to 5, it is characterized in that: above-mentioned deflection be along the warpage of above-mentioned metallic article length direction, crooked with twist among one of at least deflection.
7. according to each described shape calculating system in the claim 1 to 6, it is characterized in that: the aforementioned calculation device use according to W (t)=-(Z1 (t)+Z2 (t))/2 calculated values of trying to achieve, with the deflection of warpage parameter W (t) with the warpage that judges, Z1 in the formula (t) be constantly during t1 above-mentioned metallic article wide in the short transverse coordinate figure of an end, the wide short transverse coordinate figure of above-mentioned metallic article when Z2 in the formula (t) be moment t2 to the middle other end.
8. according to claim 6 or 7 described shape calculating systems, it is characterized in that: the aforementioned calculation device is used according to C (t)=(Y1 (t)+Y2 (t))/2 calculated values of trying to achieve, with the deflection of bending parameters C (t) with the bending that judges, Y1 in the formula (t) be constantly during t1 above-mentioned metallic article wide in the width coordinate figure of an end, wide wide to the middle other end of above-mentioned metallic article when Y2 in the formula (t) be moment t2 to coordinate figure.
9. according to each described shape calculating system in the claim 6 to 8, it is characterized in that: the aforementioned calculation device is used the calculated value according to T (t)=Z1 (t)+Z2 (t) tries to achieve, to twist the deflection of parameter T (t) with the distortion that judges, Z1 in the formula (t) be constantly during t1 above-mentioned metallic article wide in the short transverse coordinate figure of an end, the wide short transverse coordinate figure of above-mentioned metallic article when Z2 in the formula (t) be moment t2 to the middle other end.
10. according to each described shape calculating system in the claim 7 to 9, it is characterized in that: each parameter of above-mentioned deflection is a plurality of instrumentation results that follow time course to try to achieve with regard to metallic article, implements four approximations of least square method.
11. roll formation system, it is characterized in that: it has each described shape calculating system in the claim 1 to 10, make roll forming machine that the tabular metal material is shaped, with the metallic article that the is shaped mobile cutting machine that cuts off of length in accordance with regulations, this roll formation system is characterised in that: be provided with the turks that is used to correct the metallic article shape in above-mentioned roll forming machine, adjust the setting of this turks according to the deflection of the metallic article of above-mentioned shape calculating system instrumentation.
12. roll formation system according to claim 11 is characterized in that: the setting of above-mentioned turks is to adjust position and the angle of revolution of above-mentioned metallic article in transport path.
13. roll formation system according to claim 12 is characterized in that: the adjustment amount of above-mentioned turks is that the parameter that each parameter of metallic article deflection that above-mentioned shape calculating system is tried to achieve utilizes Jacobi's database to be transformed to adjustment amount obtains.
14. according to each described roll formation system in the claim 11 to 13, it is characterized in that: above-mentioned mobile cutting machine is that the actuator by one-way only operation moves the cutter that is used to cut off.
15. roll formation system according to claim 14 is characterized in that: above-mentioned actuator is a motor, the crank mechanism that is connected by motor therewith moves above-mentioned cutter.
16. roll formation system according to claim 15 is characterized in that: the cut-out chassis of above-mentioned motor and the above-mentioned cutter of crank mechanism mobile-bearing.
17. roll formation system according to claim 16 is characterized in that: above-mentioned Motor Control becomes to make the translational speed of the translational speed of above-mentioned cut-out chassis and above-mentioned metallic article synchronous.
18. according to each described roll formation system in the claim 15 to 17, it is characterized in that: above-mentioned motor is a servomotor.
19. according to each described roll formation system in the claim 16 to 18, it is characterized in that: gyroaxis combines with above-mentioned motor in the above-mentioned crank mechanism, and eccentric shaft combines with above-mentioned cut-out chassis.
20. according to each described roll formation system in the claim 15 to 19, it is characterized in that: above-mentioned motor stops operating in the shooting operation of being undertaken by above-mentioned camera head.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008065580A JP4294713B1 (en) | 2008-03-14 | 2008-03-14 | Shape measurement system |
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Cited By (8)
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| CN101979168A (en) * | 2010-10-13 | 2011-02-23 | 北京金自天正智能控制股份有限公司 | High-precision online measuring instrument and measuring method for strip shape of plate and strip |
| CN102175175A (en) * | 2011-01-26 | 2011-09-07 | 中国地震局地质研究所 | Small slice type three-dimensional structure reconstruction system |
| CN102671961A (en) * | 2012-05-15 | 2012-09-19 | 山西太钢不锈钢股份有限公司 | Length detection method of uncooled section of head of hot rolled strip steel |
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| CN108827178A (en) * | 2018-07-19 | 2018-11-16 | 首钢集团有限公司 | A kind of strip warpage detection method and system |
| CN109000583A (en) * | 2013-05-22 | 2018-12-14 | 康耐视公司 | The system and method for carrying out active surface measurement using laser displacement sensor |
| CN111174737A (en) * | 2018-11-09 | 2020-05-19 | 本田技研工业株式会社 | Method for measuring coating amount |
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| KR101184946B1 (en) | 2010-12-28 | 2012-10-02 | 현대제철 주식회사 | Apparatus for detecting of steel plate and control method thereof |
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- 2008-03-14 JP JP2008065580A patent/JP4294713B1/en active Active
- 2008-05-30 CN CN200810108431A patent/CN101530864A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101979168A (en) * | 2010-10-13 | 2011-02-23 | 北京金自天正智能控制股份有限公司 | High-precision online measuring instrument and measuring method for strip shape of plate and strip |
| CN101979168B (en) * | 2010-10-13 | 2012-12-19 | 北京金自天正智能控制股份有限公司 | High-precision online measuring instrument and measuring method for strip shape of plate and strip |
| CN102175175A (en) * | 2011-01-26 | 2011-09-07 | 中国地震局地质研究所 | Small slice type three-dimensional structure reconstruction system |
| CN102671961A (en) * | 2012-05-15 | 2012-09-19 | 山西太钢不锈钢股份有限公司 | Length detection method of uncooled section of head of hot rolled strip steel |
| CN109000583A (en) * | 2013-05-22 | 2018-12-14 | 康耐视公司 | The system and method for carrying out active surface measurement using laser displacement sensor |
| CN103499306A (en) * | 2013-10-25 | 2014-01-08 | 李腾飞 | End face deformation measuring device for face milling cutter based on dual-pulse laser |
| CN103499306B (en) * | 2013-10-25 | 2016-08-17 | 吕英波 | A kind of facing cut cutter face deformation measurement apparatus based on dual pulse welding |
| CN108827178A (en) * | 2018-07-19 | 2018-11-16 | 首钢集团有限公司 | A kind of strip warpage detection method and system |
| CN111174737A (en) * | 2018-11-09 | 2020-05-19 | 本田技研工业株式会社 | Method for measuring coating amount |
| CN111174737B (en) * | 2018-11-09 | 2021-08-24 | 本田技研工业株式会社 | Method for measuring coating amount |
| CN112833806A (en) * | 2019-11-25 | 2021-05-25 | Juki株式会社 | Sewing needle inspection device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4294713B1 (en) | 2009-07-15 |
| JP2009222482A (en) | 2009-10-01 |
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