CN1593801A - Automatic flatness measuring device and method - Google Patents
Automatic flatness measuring device and method Download PDFInfo
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- CN1593801A CN1593801A CN 03124814 CN03124814A CN1593801A CN 1593801 A CN1593801 A CN 1593801A CN 03124814 CN03124814 CN 03124814 CN 03124814 A CN03124814 A CN 03124814A CN 1593801 A CN1593801 A CN 1593801A
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Abstract
The invention relates to a kind of apparatus which uses optic measuring method to measure level degree and straight degree. The invention includes a kind of method for measuring automatically level degree and straight degree and the corresponding device, which especially a laser measuring system for measuring and checking thin steel board. Its character is the laser sensor consists of semiconductor, light blocking board, CCD camera eye, picture collecting card, slip block and other. The picture collecting card is set in the computer. The slip block fixes the laser sensor and CCD camera eye, and carries them to slide in direction X. The invention can measure the level and straightness of steel board of different ply completely automatically. It has high measuring precision, high speed, short halt time when producing, and high efficiency and can be used to check the steel board when produced and used.
Description
Technical field:
The present invention relates to adopt measuring method is the instrument of its feature, is a kind of glacing flatness method for automatic measurement and device, especially measures and check steel-sheet laser glacing flatness automatic measurement system.
Background technology:
In industry, national defence, scientific research, produce each place, as aircraft, rocket, submarine, automobile, refrigerator, instrument frame, even pop can or the like all will use sheet material has different requirements or even strict requirement to the glacing flatness (claiming unevenness or convexity again) of plate surface.So production seems extremely important with the check to glacing flatness of the department of use.; present known flatness measurement is to adopt fairly simple instrument to be undertaken by manual method; as more domestic big iron and steel enterprises, though adopt advanced import production line and testing equipment, the measurement of steel plate glacing flatness but adopts angle square and clearance gauge to carry out.
Some patents of finding, still with manually carrying out, as the steel plate non-planeness measurement instrument (CN01268644.1) of 2 steel wires is installed on latch plate, the plate, use novel flatness meassuring instrument (metering and the measuring technology of spirit level and torsion spring table with the glacing flatness detector (CN92228820) of ruler and dial gauge, 1994, No:5) etc.
More automatic a little as the automatic digital measuring apparatus of sheet material unevenness, (CN91231110.X), it is made up of guide rail, ruler, measurement bay and a digital display centimeter etc., during measurement, guide rail is placed on the sheet material, straight steel ruler directly contacts with sheet material, and measurement bay moves back and forth on guide rail, measures straight steel ruler and sheet material distance by digital display meter, the single-chip microcomputer numeral demonstrates unevenness, removed from partly and to have calculated, because guide rail directly contacts with tested sheet material with steel ruler, so can not be used for surveying thin plate.
The online LF-100 type laser glacing flatness of the on-line rolling strip flatness measuring instrument (CN96100723.0) of also useful 5 group of 3 LASER Light Source, 7 * 3 groups of laser is merely able to survey 2mm with upper steel plate, error 1mm.
And the measuring method of the glacing flatness of the pyrometry metal product glacing flatness of the strip flatness measurement mechanism (CN01125785) of survey tension distribution, French Vai Clecim and the self-operated measuring unit of device glacing flatness such as (CN01143319.1) thereof, these instruments or involve great expense, or precision is low maybe can not survey thin plate, should not be used for the examination and test of products of production scene and steel plate applying unit flexibly.
Summary of the invention:
Problems such as the objective of the invention is: solving sheet material, is the automatic measurement problem of the glacing flatness of thin metal blank especially, solves under steel rolling mill's hot environment, and labour intensity is big when manually carrying out flatness measurement, and the downtime that measurement takies is long, and efficient is low.
Technical scheme of the present invention is: a kind of glacing flatness self-operated measuring unit is provided, adopts technology such as laser and image processing that the body surface glacing flatness is carried out all automatic measurement; It is by the laser shape wave measuring transducer 1 of computer 4 controls, and slotted line and probe location automatic setting device 2 and noncontact guide rail support 3 add systems soft ware 5 and constitute.
Laser shape wave measuring transducer 1 is made up of semiconductor laser 7, light barrier 8, CCD camera 11, image collection card 13 and gauge head slide block 10 etc., image collection card 13 is inserted in the computer 4, gauge head slide block 10 fixed lasers 7 and CCD camera 11, and carry them and on directions X guide rail 14, slide.
Two servomotors 17,18 that slotted line and probe location automatic setting device 2 are controlled by computer 4, corresponding gearing and the two groups of guide rails 14,20 that are fixed on the frame 19 are formed, and servomotor 17 drives gauge head slide blocks 10 and locatees along 14 slips of directions X guide rail by driving-belt; Servomotor 18 drives whole measurement frame 19 by drive and moves on frame guide rail 20 along the Y direction.
Y traversing guide 20 is fixed on two fixed feet 21 by two alloy aluminum square materials, constitutes noncontact guide rail support 3, is supported on the measuring table 15; At the directions X guide rail 14 and the two ends of Y traversing guide 20 position limited inching switch is housed all; Monolithic processor controlled driven by servomotor circuit board is fixed on to be measured on the frame 19.
Measurement mechanism is connected with computer: the RS232 serial ports of an interior single board computer of cable slave is connected to computer RS232 serial ports; Article one, video line is connected to the video input port of the image card 13 of computer interpolation from 11 outputs of CCD camera.
The method that the present invention measures the sheet material glacing flatness automatically is to use the glacing flatness self-operated measuring unit, arrives tested sheet material 16 surfaces, the indicatrix of the representative surface flatness of the high brightness that forms on the surface with in-line visible light semiconductor laser beam vertical irradiation; CCD camera 11 cooperates image collection card 13 or digital camera head to obtain the digital image signal of curve; Computer 4 is by the X of systems soft ware 5 controls, the location machinery that Y direction servomotor 17,18 drives, make CCD camera 11 automatic follow procedures be positioned at middle, the surperficial edge on measuring table 15 and tested sheet material 16 surfaces, take a plurality of positions on the many sampling and measuring lines to measure automatically, obtain respectively to measure picture intelligence continuous on the sample line; Computer 4 is handled whole digital image signals, obtain Xi, the Yi value of each point on the curve, measurement results such as the shape wave curve along sheet material 16 surfaces on each sampling and measuring line, the wave of just drawing and going out at computer 4 screen displays is high, wave distance, sheet metal thickness, glacing flatness, anxious high degree, extension difference, and judge the credit rating of sheet material 16 glacing flatness automatically, print the measurement result form, realize overproof warning, work such as data query.The pixel of CCD camera is many more, the resolution ratio of cooperation image collection card is high more, or the pixel of digital camera head is many more, and the area that absorbs in the CCD visual field is more little, and certainty of measurement is high more.The sampling and measuring line is many more, and the representativeness that records the result is good more, finally can obtain the digital three-dimensional model that body surface rises and falls.
And when measuring the glacing flatness of wire rod, measure a sampling and measuring line and get final product.
The advantage and the good effect of invention:
1. this measuring method can be applied to other fields of measuring glacing flatness, as the road surface, and stone material, the glacing flatness of rail or the like is measured automatically, only needs to adjust argument structure and gets final product;
2. non-cpntact measurement can be measured the glacing flatness of the sheet material of all thickness, the automatic measurement of particularly various black and non-ferrous metal thin plate and ultra-thin plate (paper tinsel) glacing flatness;
3. measuring process full automation, measuring speed is fast, and the production line dead time is short, the efficient height;
4. the sample point than manual measurement is many, and unmanned poor, representative error is little, and the precision height has reflected the glacing flatness quality of product more truly;
5. data record is complete, and inquiry is convenient;
6. labor strength reduces, and saves manpower.
Testing department and research laboratory that instrument is suitable for plant produced line, workshop and sheet material applying unit use.
Description of drawings:
The formation block diagram of Fig. 1 laser sheet material glacing flatness self-operated measuring unit,
Fig. 2 laser shape wave measuring transducer fundamental diagram,
The structural representation of Fig. 3 slotted line and gauge head slide position automatic setting device,
Second kind of structural representation of Fig. 4 slotted line and probe location position automatic setting device.
Fig. 1 has showed the laser sheet material glacing flatness self-operated measuring unit that computer 4 constitutes by systems soft ware 5 control laser shape wave measuring transducers 1, slotted line and probe location automatic setting device 2 and noncontact guide rail support 3.
Fig. 2 has showed the formation and the working condition of laser shape wave measuring transducer 1.
Laser shape wave measuring transducer 1 is made up of semiconductor laser 7, light barrier 8, CCD camera 11, image collection card 13 and gauge head slide block 10 etc., image collection card 13 is inserted in the computer 4, gauge head slide block 10 fixed lasers 7 and CCD camera 11, and carry them and on directions X guide rail 14, slide.
It is a kind of visible light semiconductor lasers that semiconductor expands bundle laser instrument 7, on its emission light path extender lens is housed, a branch of circular laser facula of outgoing.This laser instrument 7 is fixed on the gauge head slide block 10, make laser beam axis perpendicular to tested sheet material 16 surfaces, one frequency modulated light plate 8 is set on light path, make and present a complete semicircle hot spot on the surface of tested sheet material 16, the edge clear of spot diameter, the intersection on it and sheet material 16 surfaces are shape wave curves of reflection sheet material 16 surface undulation injustice; This curve is imaged in the visual field of CCD camera 11, and by 11 picked-ups of CCD camera.
CCD camera 11 is black and white or colour imagery shots of a kind of 300,000 above pixels, and camera adopts f=6～10mm not have the barrel-shaped distortion camera lens.Camera 11 is fixed on the gauge head slide block 10, and far away from hot spot number centimetre, its optical axis becomes a angle with tested sheet material 16 planes.Camera 11 is relative with the position of laser instrument 7 strict constant.The video image signal of camera 11 outputs send image collection card 13 by video stube cable 12.
Image collection card 13 is inserted in the computer 4, and it converts the simulated image of input to digital image signal, for Computer Processing.The resolution ratio that image collection card 13 is caught image is not less than 640*480, and employing can be for the SDK type card of user program usually.
CCD camera 11 obtains digital image signal with image collection card 13, supplies computer 4 seizure and carries out image and the data processing.The two also can be replaced by function digital camera head identical or with better function.Digital image signal connects computer 4 by USB cable.
Gauge head slide block 10 fixed lasers 7 and CCD camera 11, and carry them and on directions X guide rail 14, slide.Slide servomotor 17,18 by computer 4 controls by band tooth belt-driven, make whole gauge head slide block 10, moving again and again, sampling from start to finish, measure, until the continuous shape wave measurement result that obtains whole survey line along measuring sample line.Precision lead screw that gauge head slide block 10 also can be used additive method such as driven by servomotor or the like drives.
Among Fig. 2, H0---the fully developed sea that can survey depends on the requirement of sheet material to be measured; The angle on a---camera 11 optical axises and measuring table 15 planes is defined as less than 30 degree according to the focal distance f of H0 and CCD camera 11 and the unrestrained high measurement accuracy of requirement.
Fig. 3 has showed the formation and the working condition of slotted line and probe location automatic setting device 2 and noncontact guide rail support 3.
Slotted line and probe location automatic setting device 2 are made up of two servomotors 17,18 of computer 4 controls, corresponding gearing and two groups of guide rails 14,20.Servomotor 17 drives gauge head slide block 10 and locatees along 14 slips of directions X guide rail by driving-belt, makes on each selected position of sampling and measuring line and obtains image; Servomotor 18 drives whole measurement frame 19 by drive and moves on frame guide rail 20 along the Y direction, in order to select and fixing survey line position.
Noncontact guide rail support 3 is made of two fixed feet 21 across guide rail 20 above tested steel plate 16 and guide rail 20, and leg 21 is supported on the measuring table 15.Guide rail intensity height, straight smooth, indeformable and assurance support 3 does not contact with tested sheet material 16 with entire measuring device.
Fig. 4 has showed that apparatus of the present invention are used for measuring wire rod and are used for the working condition of glacing flatness of on-line measurement plate surface, and Y guide rail 20 is provided with short or is not provided with.For definition and the photoelectric component that guarantees the laser facula characteristic curve do not invaded and harassed by dust, moisture, it is good by the light material jacket to measure frame 19.If external environment is very bright, also will be with deceiving the suitable local shading of silk scarf at outer cover.
Laser shape wave measuring transducer 1 and slotted line and probe location automatic setting device 2 is characterized in that one or more laser instrument 25 perpendicular projection in-line cursors being installed on tested sheet material 16 measuring on the frame 29 by replacing with lower device.In-line closely arranges a plurality of same models, with the CCD camera 26 of performance, make a bit of image on each camera picked-up survey line directions X.Use simple digital circuit 27 then, timesharing is sent to image collection card 13 with image and is inserted computer 4 automatically; Computer program is obtained complete continuous data of sheet material shape wave and curve on the survey line.This method can be cancelled the electromechanical means location of the higher directions X of precision prescribed, even the not high Y guide rail of positioning accuracy request drives and also can simplify or semi-automatic, like this volume, quality can be littler.To measuring little width, moderate seas are more suitable apart from sheet material or wire rod; But relatively recently, to selecting CCD camera 11 and light path adjustment thereof trouble.
The shape wave measurement mechanism that many laser that in-line is arranged and many CCD camera constitute can be used for online measurement.As long as many CCD of control camera exposes simultaneously, 1/1000 second high-speed capture, stored images is transported to Computer Processing again and is got final product.As required, can adopt 1 row or multiple row shape wave measurement mechanism.
Then control the motion of servomotor, the setting measurement line: obtain the image measurement shape wave on slotted line, move to next position, measure, the shape wave of several surveys line wave obtains the continuous shape wave curve of each bar survey line apart from measuring on finishing sheet material;
Data are handled: calculate measurement results such as unevenness and other measurements and result of calculation such as H0, thickness of slab, glacing flatness, anxious high degree, extension difference, and judge the credit rating of sheet material glacing flatness automatically;
Print the measurement result form; Realize overproof warning; Data query is provided; Long-distance Control etc.
The specific embodiment:
Use the glacing flatness of the glacing flatness of laser glacing flatness self-operated measuring unit sheet material measurement.
Semiconductor laser expands light source beam and adopts 2mW semiconductor laser 7, is fixed on the gauge head slide block 10, and laser beam axis is perpendicular to measuring table 15 planes, and it is dispersed hot spot and penetrates the about 33mm of diameter on 90mm measuring table 15 far away; 22mm place (22mm is greater than Ho) apart from measuring table 15 on light path is provided with a slice light barrier 8, make hot spot just in time become semicircle, and diameter is parallel to X guide rail 14; With the fixing black-white CCD camera 11 of a support, its model is BL-210B on gauge head slide block 10, and 420 lines are joined the 8mm camera lens, and about 24 degree in a angle are apart from the about 60mm in the center of laser facula.The output process vision cable 12 of CCD camera 11 send the VT-210 video image capture card 13 in the PCI slot that is inserted in the computer, and its static acquisition resolution is 768*576.
When slotted line was positioned on the measuring table, laser beam shone on the measuring table, and in computer 4, the hot spot image that demonstrates is white, and it is straight line that spot diameter looks like, and it is near screen bottom and be parallel to the screen upper and lower side frame.Diameter is a black with the screen on top.Can record corresponding to the corresponding Y value of any one X value on the diameter from screen image.This Y value is exactly H0.H0 is the fully developed sea that instrument can be measured; When slotted line was on the tested sheet material, the picture of laser spot diameter on tested sheet material became a curve, and this curve has reflected the glacing flatness of plate surface; Measure image and go up each selected in advance corresponding Yi value of Xi value; Computer 4 is being controlled the next position that moves on to the next-door neighbour automatically by navigation system after measuring and store Xi, Yi in what a CCD camera 11 visual field, measures Xi, Yi once more, has surveyed until full survey line.
Again under computer control, the measurement frame 19 that is loaded with whole directions X guide rail 14, laser shape wave measuring transducer 1 and servomotor 17 is moved on the 2nd survey line along Y traversing guide 20 then.Thus and thus, all Xi, Yi value have been surveyed.Move on to the 3rd survey line again until all having surveyed, get back on the measuring table 15 by the slotted line of setting.
Meanwhile finished the data processing in the computer 4, calculate and demonstrate on the screen that the wave that records on the every survey line is high, wave distance, thickness of slab, plate deformation curve, glacing flatness, suddenly high degree, the credit rating of sheet material glacing flatness, measurement result, come out with report printing.
Slotted line and probe location automatic setting device 2 promptly are to measure regular worker's font directions X guide rail 14 on the frame 19, the long 800mm of guide rail, on be embedded with the gauge head slide block 10 that can move in the above.Slide block 10 cooperates toothed timing belt to drive by servomotor 17 (57BYG that Changzhou produces).Servomotor 17 is by computer program control, and minimum step pitch is 0.01mm.Servomotor 18 (57BYG) on the frame 19 drives rubber roll by belt pulley and moves on Y direction frame guide rail 20, and displacement is controlled by computer program, in order to the setting measurement line.Y traversing guide 20 is fixed on two fixed feet 21 by two alloy aluminum square materials.The length of guide rail 20 is crossed over tested sheet material 16, than the wide 60mm of sheet material, selects 1100mm long here.The position limited inching switch protection is all arranged at the two ends of directions X guide rail 14 and Y traversing guide 20.For making things convenient for the debugging of system, adopted the monolithic processor controlled driven by servomotor circuit board of common usefulness.This plate is fixed on to be measured on the frame 19, with several membrane keyboards control that servomotors 17,18 reset, speed, direction etc.
Electric power system: CCD camera 11, semiconductor laser 7, servomotor 17,18, single-chip microcomputer all pass through single-phase 1KVA AC voltage regulator by the 220V civil power, the transformer step-down of a 60W in machine, rectification and voltage stabilizing power supply.Wind-cooling heat dissipating.
Measuring system is connected with computer: the RS232 serial ports of an interior single board computer of cable slave is connected to computer RS232 serial ports; Article one, video line is connected to the video input port of the image card 13 of computer interpolation from 11 outputs of CCD camera.
Calibration: be placed on several gauge blocks of examining and determine through metrological service of measuring on the flat board by measurement, can calibrate unrestrained high assay value.
Automatically calculate correction value and measurement result is revised by computer.
Laser glacing flatness self-operated measuring unit sheet material measurement.
It is characterized in that measuring on the frame 29 23 laser instruments 25 being installed, their perpendicular projection are on tested sheet material.Light barrier 32 adopts a stainless steel alloy ruler, and the chi marginal ray is sliding smooth, and is vertical and crossing with the optical axis of each laser instrument 25.Each laser instrument is incident upon the hot spot of measuring on the flat board and is semicircle, and the diameter video is a straight line.Closely arrange and fixed the CCD camera 11 that 23 BL-210B join the 8mm camera lens, about 24 degree in a angle of installation measuring in-line on the frame 29.Each CCD camera is apart from the about 60mm in center of the laser facula of the laser instrument 7 of correspondence.Make a bit of image on each camera 11 picked-up survey line directions Xs, but the shape wave of the long survey line of 690mm on 23 CCD camera 11 measured X directions.The output of each CCD camera 11 is sent to image image collection card 13 automatically by simple digital circuit 27.Computer program just can be obtained complete continuous data of sheet material shape wave and curve on the survey line.This method has been cancelled directions X guide rail and servomotor and drive circuit.Cancelled the gauge head slide block.Do not have any mechanical action and just can survey a shape wave surveying work of measuring sample line.
A servomotor 18 (57BYG) of measuring on the frame 29 moves on Y frame guide rail 20 by belt pulley drive rubber roll, and displacement is controlled by computer program, in order to the setting measurement line.Y guide rail 20 is fixed on two fixed feet 21 by two alloy aluminum square materials.Guide rail 20 length are crossed over tested sheet material 16, than the wide 60mm of sheet material, select 1100mm long here.The position limited inching switch protection is housed at the two ends of Y guide rail 20.The remainder of system and example 1 are basic identical.
Claims (5)
1. glacing flatness self-operated measuring unit, by the laser shape wave measuring transducer 1 of computer 4 controls, slotted line and probe location automatic setting device 2 and noncontact guide rail support 3 add systems soft ware 5 and constitute, it is characterized in that:
1. laser shape wave measuring transducer 1 is made up of semiconductor laser 7, light barrier 8, CCD camera 11, image collection card 13 and gauge head slide block 10 etc., image collection card 13 is inserted in the computer 4, gauge head slide block 10 fixed lasers 7 and CCD camera 11, and carry them and on directions X guide rail 14, slide;
2. slotted line and probe location automatic setting device 2 are made up of two servomotors 17,18 of computer 4 control, corresponding gearing and two groups of guide rails 14,20 of being fixed on the frame 19, and servomotor 17 drives gauge head slide blocks 10 and slides along directions X guide rail 14 by driving-belt and locate; Servomotor 18 drives whole measurement frame 19 by drive and moves on frame guide rail 20 along the Y direction;
3. Y traversing guide 20 is fixed on two fixed feet 21 by two alloy aluminum square materials, constitutes noncontact guide rail support 3, is supported on the measuring table 15; At the directions X guide rail 14 and the two ends of Y traversing guide 20 position limited inching switch is housed all; Monolithic processor controlled driven by servomotor circuit board is fixed on to be measured on the frame 19;
4. being connected of measurement mechanism and computer: the RS232 serial ports of single board computer is connected to computer RS232 serial ports in cable slave; Article one, video line is connected to the video input port of the image card 13 of computer interpolation from 11 outputs of CCD camera;
5. adopt can continuous operation under selected measurement environment for computer 4, can carry out digital image acquisition and processing quickly, and the computer of any type that reliability is high all can; Operating system can be with WIN98 or above version; Industrial Control Computer surely belongs to first-selection.To the instrument of miniaturization, can use PDA and WINCE operating system.According to the requirement of measure field needs and handled easily, computer can separate with measurement frame 29, also can be fitted together;
6. measurement control software 5 usefulness VB or other language compilation.Major function has: system resets and self check; But debugging and calibration are convenient in the work of Artificial Control and inspection each several part; Before measuring beginning, with the parameter of computer keyboard input various requirement; Automatically carry out the measurement of glacing flatness by the program of setting---comprise the glacing flatness of measuring platform 15 earlier, carry out self calibration, and measure H0;
Then control the motion of servomotor, the setting measurement line: obtain the image measurement shape wave on slotted line, move to next position, measure, the shape wave of several surveys line wave obtains the continuous shape wave curve of each bar survey line apart from measuring on finishing sheet material;
Data are handled: calculate measurement results such as unevenness and other measurements and result of calculation such as H0, thickness of slab, glacing flatness, anxious high degree, extension difference, and judge the credit rating of sheet material glacing flatness automatically;
Print the measurement result form; Realize overproof warning; Data query is provided; Long-distance Control etc.
2. the method for sheet material measurement glacing flatness is characterized in that: use the glacing flatness self-operated measuring unit, arrive tested sheet material 16 surfaces, the indicatrix of the representative surface flatness of the high brightness that forms on the surface with in-line visible light semiconductor laser beam vertical irradiation; CCD camera 11 cooperates image collection card 13 or digital camera head to obtain the digital image signal of curve; Computer 4 is by the X of systems soft ware 5 controls, the location machinery that Y direction servomotor 17,18 drives, make CCD camera 11 automatic follow procedures be positioned at middle, the surperficial edge on measuring table 15 and tested sheet material 16 surfaces, take a plurality of positions on the many sampling and measuring lines to measure automatically, obtain respectively to measure picture intelligence continuous on the sample line; Computer 4 is handled whole digital image signals, obtain Xi, the Yi value of each point on the curve, measurement results such as the shape wave curve along sheet material 16 surfaces on each sampling and measuring line, the wave of just drawing and going out at computer 4 screen displays is high, wave distance, sheet metal thickness, glacing flatness, anxious high degree, extension difference, and evaluate the credit rating of sheet material 16 glacing flatness automatically, print the measurement result form, realize overproof warning, work such as data query.The pixel of CCD camera is many more, the resolution ratio of cooperation image collection card is high more, or the pixel of digital camera head is many more, and the area that absorbs in the CCD visual field is more little, and certainty of measurement is high more; The sampling and measuring line is many more, and the representativeness that records the result is good more, finally can obtain the digital three-dimensional model that body surface rises and falls;
And when measuring the glacing flatness of wire rod, measure a sampling and measuring line to get final product;
Form a line or ordered series of numbers with a plurality of laser shape wave measuring transducers, many wave-shape characteristic lines that form on the sheet material are taked high-speed shutter, exposure simultaneously, Computer Processing can on-line determination sheet material unevenness; Shutter speed is mainly determined by the certainty of measurement of the sheet material speed of service and requirement, is not more than 1/1000 second.
3. use the method for glacing flatness self-operated measuring unit sheet material measurement according to claim 2, it is characterized in that:
H0---the fully developed sea that can survey depends on the requirement of sheet material to be measured;
The angle on a---camera 11 optical axises and measuring table 15 planes is defined as less than 30 degree according to the focal distance f of H0 and CCD camera 11 and the unrestrained high measurement accuracy of requirement.
4. glacing flatness self-operated measuring unit according to claim 1 is characterized in that: laser shape wave measuring transducer 1 has following frame mode:
1. single laser shape wave measuring transducer 1, conjunction measuring line and probe location automatic setting device under computer 4 controls, carry out along a survey line, a survey line ground, finish whole surveying works;
2. a plurality of laser shape wave measuring transducers 1 of in-line arrangement cooperate the Y guide rail and drive servomotor, under computer 4 controls, measure and finish whole work along a survey line, a survey line ground;
3. a plurality of laser shape wave measuring transducers 1 of arranging with row or shape of multiple row with the shape wave of the sheet material in advancing on the high-speed shutter exposure shooting simultaneously production line, are stored and are handled by computer 4, finish whole work of on-line determination glacing flatness.
5. the method for automatic mensuration sheet material glacing flatness according to claim 2 is characterized in that: obtaining the method for in-line laser cursor and wave-shape characteristic line on survey line, can be the laser instrument 7 of a band in-line cursor, and oblique fire is to tested plate surface; Or with a plurality of laser instruments 7 that in-line is arranged, by a ruler shape light barrier 8, keep off and remove half hot spot, vertical irradiation is to tested plate surface; Or with a laser instrument 7 through the semicircle hot spot of a light barrier 8 perpendicular projection, or projection in-line hot spot is driven by servomotor, moves on the X guide rail, forms complete wave-shape characteristic line.
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| CN 03124814 CN1282508C (en) | 2003-09-12 | 2003-09-12 | Automatic flatness measuring device and method |
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| CN101819029B (en) * | 2010-04-13 | 2012-01-18 | 江苏大学 | Reticle processing flatness detection system and method of micro-vision array solar energy film cell |
| CN101819029A (en) * | 2010-04-13 | 2010-09-01 | 江苏大学 | Reticle processing flatness detection system and method of micro-vision array solar energy film cell |
| CN101865681A (en) * | 2010-06-20 | 2010-10-20 | 武汉钢铁(集团)公司 | Edge wave detector for single-point laser steel plate |
| CN101852595A (en) * | 2010-06-20 | 2010-10-06 | 武汉钢铁(集团)公司 | Online sheet shape measurer |
| CN101915543A (en) * | 2010-06-30 | 2010-12-15 | 上海电气电站设备有限公司 | Measurement frock and measurement method of iron core magentic center and wave degree of generator |
| CN101915543B (en) * | 2010-06-30 | 2012-10-24 | 上海电气电站设备有限公司 | Measurement frock and measurement method of iron core magentic center and wave degree of generator |
| CN101911877A (en) * | 2010-07-06 | 2010-12-15 | 北京农业智能装备技术研究中心 | Seed vitality authentication device and method based on laser light diffuse reflection image technology |
| CN104122901A (en) * | 2013-04-28 | 2014-10-29 | 苏州北新矿棉板有限公司 | Sheet material thickness control method |
| CN107085504A (en) * | 2016-02-16 | 2017-08-22 | 宝山钢铁股份有限公司 | The instant print system of thickness measure for steel plate data and method |
| CN106403852A (en) * | 2016-08-31 | 2017-02-15 | 西安曼海特工业技术有限公司 | Plate shape flatness static state measuring device and method |
| CN106949854A (en) * | 2017-04-26 | 2017-07-14 | 苏州睿牛机器人技术有限公司 | A kind of laser vision sensor and its detection method |
| CN110280609A (en) * | 2019-07-23 | 2019-09-27 | 攀枝花学院 | Hot-strip straightness detection device |
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