CN202238932U - Plate measuring instrument - Google Patents

Plate measuring instrument Download PDF

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Publication number
CN202238932U
CN202238932U CN2011204003833U CN201120400383U CN202238932U CN 202238932 U CN202238932 U CN 202238932U CN 2011204003833 U CN2011204003833 U CN 2011204003833U CN 201120400383 U CN201120400383 U CN 201120400383U CN 202238932 U CN202238932 U CN 202238932U
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CN
China
Prior art keywords
sheet
measurement
width
laser
limit
Prior art date
Application number
CN2011204003833U
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Chinese (zh)
Inventor
邱忠义
杨溪林
赵宏
胡宇
邹凤欣
由菁菁
Original Assignee
北京金自天正智能控制股份有限公司
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Priority to CN2011204003833U priority Critical patent/CN202238932U/en
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Publication of CN202238932U publication Critical patent/CN202238932U/en

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Abstract

The utility model discloses a plate measuring instrument. The plate measuring instrument comprises two sets of edge part measuring devices, a measuring control cabinet and a display, wherein the two sets of edge part measuring devices are respectively positioned on the two sides of the measured plate and symmetrically arranged; the edge part measuring devices and the plate are positioned at the same height; each edge part measuring device comprises a metal box body, a full high definition plane scanning camera, two parallel line lasers, a data acquisition board and a power supply. According to the utility model, the comprehensive measurement of plate width, edge part shape and edge part defect is solved by using a measuring instrument; the edge part shape of the plate can be accurately measured by using a line laser light source and a plane array camera; and the width of the plate as well as maximum section width value, minimum section width value, average section width value, maximum value position and minimum value position of the measured plate during measuring are calculated according to the edge part shape so that the measuring accuracy is improved.

Description

A kind of board measure appearance

Technical field

The utility model belongs to the field of measuring technique of optical, mechanical and electronic integration, is specifically related to width, the limit portion shape of sheet material under the hot rolling environment, the board measure appearance of edge fault.

Background technology

Hot rolling Wide and Thick Slab, middle plate, the width parameter of band steel, surface quality parameters are to describe the important indicator of product quality; In order to make sheet material carry out width control in process of production or product to be classified, all width and surface quality measuring instrument need be installed on production line according to width index and surface quality index.Usually sheet material installation surface mass measurer is only measured the quality of upper and lower surfaces, and the crack defect of sheet material side surface does not have the measuring method of economic and reliable.The sheet material width measure is divided into laser width appearance and optics shooting width appearance.Optics camera method width measure hookup wire array camera above tested sheet material utilizes the optics contrast of hot sheet material itself and environment or background light source is installed below sheet material, and video camera is carried out to picture to sheet material, and then the sheet material measurement width.The laser width appearance is applicable to the width measure of Wide and Thick Slab, and at the each side installation one cover measurement mechanism of sheet material, every cover measurement mechanism comprises a dot laser and a linear array video camera; Dot laser sends the side of beam of laser vertical irradiation to tested sheet material, forms a some shaped laser spot in the side of sheet material, during the sheet material change width; The position of laser facula changes thereupon; The linear array video camera is measured the location variation of hot spot, and the measurement mechanism synchronization of sheet material both sides is measured the location variation of hot spot respectively, can obtain the width value of sheet material; This width value is the numerical value of a bit, can not complete reflection sheet material section width.2 of W10 width gage employings or a plurality of dot laser of Belgium IRM company can solve the limitation that the single-point laser device is measured width to a certain extent; The also limit portion shape of sheet material measurement to a certain degree; Because the discontinuity of spot light light, portion's width measure also is discontinuous on the limit of sheet material, therefore; The precision of describing sheet material limit portion shape is not high, not the energy measurement edge fault.Its camera and laser instrument are in a plane of vertical direction simultaneously; The main purpose of selecting two-dimentional camera for use is in order to debug conveniently, and during laser positions generation left-right deviation, video camera can also capture signal; In addition, two-dimentional camera is identical with the effect of one dimension camera.

As shown in Figure 1; Several kinds of shapes shown in a, b, the c during scheming possibly appear in the cross section in the plate rolling process; Wherein b is that limit portion protruding type proportion is maximum among the figure; And outstanding size was big more when sheet metal thickness was big more, and any surveys the actual width that sheet material can not be described in wide measurement point position on sheet material comprehensively, this shows:

There is certain limitation in above-mentioned width gage when measuring the width of the big sheet material of thickness; Only measure the width value of a certain position of sheet material section; Parameters such as the width maximum of section, minimum of a value, mean breadth value are energy measurement, more accurately sheet material measurement edge fault not.

Summary of the invention

The purpose of the utility model is in order to address the above problem, to propose a kind of width, limit portion shape, edge fault measuring instrument of sheet material.

A kind of board measure appearance comprises two cover limit portion measurement mechanisms, measures switch board and display;

Two cover limit portion measurement mechanisms lay respectively at tested sheet material bilateral symmetry setting, limit portion measurement mechanism and sheet material co-altitude; Each limit portion measurement mechanism includes metal cabinet, a full HD smear camera, two parallel laser line generators, data collecting plate card and power supplies; Full HD smear camera, two parallel laser line generators, data collecting plate card, power supplies all are positioned at metal cabinet inside; Power supply is that full HD smear camera, two parallel laser line generators, data collecting plate cards are supplied power; Metal cabinet is provided with three light holes near sheet material one side, the imaging optical path of a corresponding full HD smear camera of light hole, the emitting light path of two respectively corresponding two parallel laser line generators of light hole; Two laser line generators are installed in sheet material in the lateral vertical of sheet material, and the two bunch laser radiations that two laser line generators are launched form two laser radiation lines perpendicular to sheet material on sheet metal thickness direction surface; High definition face smear camera and laser line generator equal height are provided with, and the optical centreline of high definition face smear camera and the center line angle of laser instrument are the 30-60 degree; The change in location of the tested sheet material side laser radiation line that high definition face smear camera high-speed capture is being moved, the image that high definition face smear camera is taken is sent to data collecting plate card; The image of the laser radiation line that data acquisition board card receiver high definition face smear camera is taken, the position that obtains every bit on the tested sheet material side laser radiation line transfers to the measurement switch board with positional information; The user sets datum level according to the maximum changing range and the maximum of sheet material on the production line scope that swings of sheet material width on the production line; The location transmission of the every bit that the data collecting plate card during measurement in the two cover limit portion measurement mechanisms obtains respectively is to measuring switch board; Measure switch board and obtain the position of every bit and the distance of datum level; The tested sheet material left-right symmetric location point that measures according to the limit portion measurement mechanism synchronization of tested sheet material both sides and the distance of datum level calculate the width value of this tested sheet material in position; With every bit on the tested sheet material side laser radiation line apart from composograph, obtain the side view of tested sheet material laser radiation line position, and then obtain width, limit portion shape, the edge fault of this measurement section sheets; When sheet material travels forward; Continuous measurement obtains the width value and the side view of all sections of sheet material and analyzes the degree of edge fault; And then obtain the position of tested sheet material section width maximum, minimum of a value, mean value, maximum and minimum of a value, carry out quality in conjunction with the edge fault that measures and limit portion shape and judge; The measurement switch board shows position, limit portion shape, the edge fault of the sheet material section width maximum, minimum of a value, mean value, maximum and the minimum of a value that obtain on display.

Described light hole is provided with and prevents flue dust, aqueous vapor pollution blow device.

Described two laser line generators are at a distance of 20mm-100mm.

The advantage of the utility model is:

(1) the utility model adopts measuring instrument to solve the composite measurement of sheet material width, limit portion shape, edge fault.

(2) the utility model adopts line laser light source and face array camera; Accurately sheet material measurement limit portion's shape and according to the width of limit portion shape accurate Calculation sheet material and measure the position of tested sheet material section width maximum, minimum of a value, mean value, max min has constantly improved certainty of measurement.

(3) the utility model through continuous measurement sheet material limit portion shape and can sheet material measurement edge fault (splitting) according to limit portion shape variation like the limit.

(4) field measurement apparatus of the utility model is installed in the side of tested sheet material, and influence reduces to device for high temperature, flue dust, steam, reduces on-the-spot protection difficulty, reduces cost.

(5) the on-line measurement appearance that provides of the utility model simply is easy to make, and cost is low, is suitable for large-scale promotion and uses.

Description of drawings

Fig. 1 is a tested sheet material section configuration sketch map in the background technology;

Fig. 2 is the structural representation of the utility model;

Fig. 3 is the plan structure sketch map of the utility model;

Fig. 4 is the method flow diagram of the utility model;

Fig. 5 is the laser triangulation range measurement principle sketch map of the utility model.

Among the figure:

The measurement mechanism 2-of 1-limit portion measures switch board 3-display

Full HD smear camera 102-of 4-sheet material 101-laser line generator

103-data collecting plate card 104-metal cabinet 105-light hole

The specific embodiment

To combine accompanying drawing and embodiment that the utility model is done further to specify below.

The utility model is a kind of width, limit portion shape, edge fault measuring instrument of sheet material, and is as shown in Figure 1, comprises two cover limit portion measurement mechanisms 1, measures switch board 2 and display 3.

Two cover limit portion measurement mechanisms 1 lay respectively at the 4 bilateral symmetry settings of tested sheet material, limit portion measurement mechanism 1 and sheet material 4 co-altitudes.Each limit portion measurement mechanism 1 includes metal cabinet 104, full HD smear camera 101, two parallel laser line generators 102, data collecting plate card 103 and power supplies.

Full HD smear camera 101, two parallel laser line generators 102, data collecting plate card 103, power supplies all are positioned at metal cabinet 104 inside; Metal cabinet 104 have water-cooled but with on-the-spot safeguard function such as air purge, guarantee that the enclosure interior temperature is in electronic devices and components work allowable temperature scope.Power supply is full HD smear camera 101, two parallel laser line generators 102, data collecting plate card 103 power supplies.

Metal cabinet 104 is provided with three light holes 105 near sheet material 4 one sides; Light hole 105 is provided with and prevents flue dust, aqueous vapor pollution blow device; The imaging optical path of light hole 105 corresponding full HD smear cameras 101, the emitting light path of two light hole 105 respectively corresponding two parallel laser line generators 102.

Two laser line generators 102 are installed in sheet material 4 in the lateral vertical of sheet material 104, and the two bunch laser radiations that two laser line generators 102 are launched form 2 laser radiation lines perpendicular to sheet material 4 on sheet material 4 thickness directions surface.

Two laser line generators 102 are at a distance of 20mm-100mm (speed according to sheet material 4 is confirmed).It is also passable for the sheet material 4 of low-speed motion 1 laser line generator 102 to be set in the utility model, and when sheet material speed was high, sheet material 4 change in location of full HD smear camera 101 each hardwood picture photographing were big, can influence the measurement (little defective is leaked and clapped) of edge fault.When the speed of production of sheet material 4 was high, laser line generator 102 can be increased to 3-4.To sum up, the utility model laser line generator 102 is 1 to 4.When changing laser line generator 102 numbers, the corresponding number that changes light hole.

High definition face smear camera 101 and laser line generator 102 equal height settings; The optical centreline of high definition face smear camera 101 and the center line angle of laser instrument 102 are the 30-60 degree, and concrete angle is confirmed in the instruments design stage according to the Breadth Maximum excursion of tested sheet material 4.The change in location of the tested sheet material 4 side laser radiation lines that high definition face smear camera 101 high-speed captures are being moved, the image that high definition face smear camera 101 is taken is sent to data collecting plate card 103.

Data collecting plate card 103 receives the image of the laser radiation line of high definition face smear camera 101 shootings, and the position that obtains every bit on the tested sheet material 4 side laser radiation lines transfers to measurement switch board 2 with positional information.

Maximum changing range and the maximum of sheet material 4 on the production line scope that swings according to 4 width of sheet material on the production line are set datum level.The location transmission of the every bit that the data collecting plate card 103 during measurement in the two cover limit portion measurement mechanisms 1 obtains respectively is to measuring switch board 2; Measure switch board 2 and obtain the position of every bit and the distance of datum level; Then; The tested sheet material 4 left-right symmetric location points that measure according to limit portion measurement mechanism 1 synchronization of tested sheet material 4 both sides and the distance of datum level calculate the width value of the tested sheet material 4 in this position.With every bit on the tested sheet material 4 side laser radiation lines apart from composograph, obtain the side view of tested sheet material 4 laser radiation line positions, and then obtain width, limit portion shape, the edge fault of this measurement section sheets.As shown in Figure 3; When sheet material 4 travels forward; Continuous measurement obtains the width value and the side view of sheet material 4 all sections and analyzes the degree of edge fault; And then obtain the position of tested sheet material 4 section width maximums, minimum of a value, mean value, maximum and minimum of a value, carry out quality in conjunction with the edge fault that measures and limit portion shape and judge.

Measurement switch board 2 shows position, limit portion shape, the edge fault of the sheet material that obtains 4 section width maximums, minimum of a value, mean value, maximum and minimum of a value on display 3.

All measurement data are stored in the user and measure in the switch board 2, as the foundation of tracing product quality the fixed time.Described measurement data is meant position, limit portion shape, the edge fault of sheet material 4 section width maximums, minimum of a value, mean value, maximum and minimum of a value.

A kind of width of sheet material, limit portion shape, edge fault measuring method, as shown in Figure 4, comprise following step:

The first step, the user demarcates the measuring basis face of limit portion measurement mechanism 1;

The user sets datum level according to the maximum changing range and the maximum of sheet material 4 on the production line scope that swings of 4 width of sheet material on the production line, and the measuring basis face of two cover limit portion measurement mechanisms 1 is demarcated, and obtains the reference position;

Second step, tested sheet material 4 thickness directions of laser line generator 102 irradiations surface, the laser radiation line of formation vertical direction;

Two tested sheet materials 4 of laser line generator 102 irradiations, the thickness direction in tested sheet material 4 sides forms two parallel laser radiation lines; When 1 of employing or 3,4 laser line generators 102, obtain different bars and count the laser radiation line, when obtaining many, the laser radiation line parallel;

The 3rd step, the change in location of the tested sheet material 4 side laser radiation lines that high definition face smear camera 101 high-speed captures are being moved, the image that high definition face smear camera 101 is taken is sent to data collecting plate card 103.

In the 4th step, data collecting plate card 103 obtains the position of every bit on the tested sheet material 4 side laser radiation lines, transfers to measure switch board 2.

In the 5th step, measure switch board 2 and adopt the optical triangulation method to measure the distance value of tested sheet material 4 limit portions and reference position; Obtain width, limit portion shape, the edge fault of sheet material.

The utility model adopts laser triangulation to be specially: as shown in Figure 5; If the measuring basis position of limit portion measurement mechanism 1 is the O point; When sheet material 4 passes through the measuring position; Laser radiation is O ' point on sheet material, and full HD smear camera 101 photographs the variation of laser radiation facula position, and intelligentized data collecting plate card 103 is gathered O ' position signalling; Handle the exact position that obtains at O ' through image and send measurement switch board 2, measure switch board 2 and depart from the distance h of reference position through calculating sheet material 4 measurement points.Measuring basis is set looks like shown in Figure 5, be the vertical plane of ordering, the maximum changing range and the swing scope of sheet material 4 on production line of considered production line sheet material 4 width when setting datum level through O.The datum level that the two cover limit portion measurement mechanisms of installing in sheet material 4 bilateral symmetry 1 are set apart from w 0The width value that is less than narrow boards material 4 deducts the maximum magnitude that swing of sheet material 4 on production line.

Suppose that the distance of measuring at tested sheet material 4 sustained height left-right symmetric position left side portion measurement mechanisms 1 is h 1, the distance that right edge portion measurement mechanism 1 is measured is h 2, the width value of then tested sheet material 4 these height is:

W=h 1+w 0+h 2 (1)

The width value of sheet material 4 all thickness (highly) positions that synchronization in the same plane is measured carries out statistical analysis; Be engraved in Breadth Maximum value, minimum widith value, mean breadth value and the maximum of measuring position sheet material, the position of minimum widith value in the time of this can being obtained; All width values are shown with image format on display 3, obtain the shape of sheet material 4 at this section.The speed (introducing from on-the-spot speed measuring instrument) of producing according to sheet material 4 is spliced into figure with sheet material 4 section configurations of continuous measurement, obtains the limit portion shape of sheet material 4.According to analyzing sheet material 4 limit portion shape variation situation, can judge whether sheet material limit portion exists the size and the shape of defective and defective.

After a board measure was accomplished, the utility model can also provide the position of mean breadth value, Breadth Maximum value, minimum widith value and the place sheet material of monoblock sheet material.

Embodiment: the band steel production line with certain enterprise is an example:

Squint about the thickness range of flat product: 6-150mm, width range: 300-800mm, band steel maximum: 20mm.

Consider the measurement surplus, this instance for the composite measurement instrument parameter of this Design of Production Line is:

Datum level distance: w 0=280mm;

Measurement mechanism 1 range measurement scope: the 300mm of every cover limit portion; The maximum measurement category of width is 880mm; The center line angle of the optical centreline of full HD smear camera 101 and laser line generator 102 is 45 °.This instance high definition face smear camera 101 adopts 1400 * 1024 industrial digital video camera; Frame frequency 60fps; The field range of high definition face smear camera 101 is 300mm (sheet material width) * 180mm (sheet metal thickness direction); 2 laser line generators 102 are at a distance of 50mm, width measure precision 0.5mm.

Claims (3)

1. a board measure appearance is characterized in that, comprises two cover limit portion measurement mechanisms, measures switch board and display;
Two cover limit portion measurement mechanisms lay respectively at tested sheet material bilateral symmetry setting, limit portion measurement mechanism and sheet material co-altitude; Each limit portion measurement mechanism includes metal cabinet, a full HD smear camera, two parallel laser line generators, data collecting plate card and power supplies; Full HD smear camera, two parallel laser line generators, data collecting plate card, power supplies all are positioned at metal cabinet inside; Power supply is that full HD smear camera, two parallel laser line generators, data collecting plate cards are supplied power; Metal cabinet is provided with three light holes near sheet material one side, the imaging optical path of a corresponding full HD smear camera of light hole, the emitting light path of two respectively corresponding two parallel laser line generators of light hole; Two laser line generators are installed in sheet material in the lateral vertical of sheet material, and the two bunch laser radiations that two laser line generators are launched form two laser radiation lines perpendicular to sheet material on sheet metal thickness direction surface; High definition face smear camera and laser line generator equal height are provided with, and the optical centreline of high definition face smear camera and the center line angle of laser instrument are the 30-60 degree; The change in location of the tested sheet material side laser radiation line that high definition face smear camera high-speed capture is being moved, the image that high definition face smear camera is taken is sent to data collecting plate card; The image of the laser radiation line that data acquisition board card receiver high definition face smear camera is taken, the position that obtains every bit on the tested sheet material side laser radiation line transfers to the measurement switch board with positional information; The user sets datum level according to the maximum changing range and the maximum of sheet material on the production line scope that swings of sheet material width on the production line; The location transmission of the every bit that the data collecting plate card during measurement in the two cover limit portion measurement mechanisms obtains respectively is to measuring switch board; Measure switch board and obtain the position of every bit and the distance of datum level; The tested sheet material left-right symmetric location point that measures according to the limit portion measurement mechanism synchronization of tested sheet material both sides and the distance of datum level calculate the width value of this tested sheet material in position; With every bit on the tested sheet material side laser radiation line apart from composograph, obtain the side view of tested sheet material laser radiation line position, and then obtain width, limit portion shape, the edge fault of this measurement section sheets; When sheet material travels forward; Continuous measurement obtains the width value and the side view of all sections of sheet material and analyzes the degree of edge fault; And then obtain the position of tested sheet material section width maximum, minimum of a value, mean value, maximum and minimum of a value, carry out quality in conjunction with the edge fault that measures and limit portion shape and judge; The measurement switch board shows position, limit portion shape, the edge fault of the sheet material section width maximum, minimum of a value, mean value, maximum and the minimum of a value that obtain on display.
2. a kind of board measure appearance according to claim 1 is characterized in that, described light hole is provided with and prevents flue dust, aqueous vapor pollution blow device.
3. a kind of board measure appearance according to claim 1 is characterized in that, described two laser line generators are at a distance of 20mm-100mm.
CN2011204003833U 2011-10-19 2011-10-19 Plate measuring instrument CN202238932U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102500627A (en) * 2011-10-19 2012-06-20 北京金自天正智能控制股份有限公司 Plate width, side shape and side defect measuring instrument and measuring method thereof
CN107160489A (en) * 2016-02-19 2017-09-15 辛北尔康普物流服务有限责任公司 For cutting the apparatus and method with measurement plate
DE102018110942A1 (en) * 2018-05-07 2019-11-07 Homag Plattenaufteiltechnik Gmbh Workpiece machining system, in particular a panel sizing saw, and method for operating a workpiece machining system and control device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102500627A (en) * 2011-10-19 2012-06-20 北京金自天正智能控制股份有限公司 Plate width, side shape and side defect measuring instrument and measuring method thereof
CN107160489A (en) * 2016-02-19 2017-09-15 辛北尔康普物流服务有限责任公司 For cutting the apparatus and method with measurement plate
DE102018110942A1 (en) * 2018-05-07 2019-11-07 Homag Plattenaufteiltechnik Gmbh Workpiece machining system, in particular a panel sizing saw, and method for operating a workpiece machining system and control device

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GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120530

Termination date: 20141019