JP2000337830A - Coil shape measuring method and device therefor - Google Patents
Coil shape measuring method and device thereforInfo
- Publication number
- JP2000337830A JP2000337830A JP11147976A JP14797699A JP2000337830A JP 2000337830 A JP2000337830 A JP 2000337830A JP 11147976 A JP11147976 A JP 11147976A JP 14797699 A JP14797699 A JP 14797699A JP 2000337830 A JP2000337830 A JP 2000337830A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- range finder
- laser range
- shape
- end surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、帯状鋼板コイルの
軸直角端面の凹凸形状を検出するコイル形状の測定方法
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for measuring the shape of a coil for detecting an uneven shape of an end surface of a strip-shaped steel coil perpendicular to the axis.
【０００２】[0002]
【従来の技術】従来、帯状鋼板コイルの軸直角端面（コ
イル端面）の凹凸を検出する技術として、図４に示すよ
うに、帯状鋼板コイル１のコイル端面２に直角にレーザ
ビーム１１を照射するレーザ距離計１０を配置し、この
レーザ距離計１０又はコイル１をコイル端面２に平行に
矢印１２で示すように相対移動させ、レーザ距離計１０
が測定したコイル端面までの距離のデータからコイル端
面２の凹凸を測定し、コイル形状を測定する技術があ
る。同様な技術は例えば実開昭６１−１４３０１０号広
報にも開示されている。2. Description of the Related Art Conventionally, as a technique for detecting irregularities on an end surface (coil end surface) perpendicular to the axis of a strip-shaped steel coil, as shown in FIG. 4, a laser beam 11 is irradiated on a coil end surface 2 of a strip-shaped steel coil 1 at right angles. A laser range finder 10 is disposed, and the laser range finder 10 or the coil 1 is relatively moved parallel to the coil end surface 2 as shown by an arrow 12, and the laser range finder 10 is moved.
There is a technique for measuring the shape of the coil by measuring the unevenness of the coil end face 2 from the data of the distance to the coil end face measured by the company. A similar technique is disclosed in, for example, Japanese Utility Model Publication No. 61-143010.
【０００３】このようなコイル形状の測定技術では、テ
レスコになっているような全体形状を把握することは容
易であるが、測定対象コイルの板厚がレーザビームの径
より小さい場合、Ｓ／Ｎ比が小さくなり、凹凸の測定が
不可能になる。例えば厚さが１ｍｍ前後の帯状鋼板コイ
ルでコイルの帯状鋼板１枚が突出しているものを検出す
る場合、使用する距離計に用いるレーザはビーム径が板
厚以下でなければ突出しているものを検出することが困
難であり、また、反射光の確実な把握ができるように、
例えばクラス３以上の高出力密度のレーザが必要とな
る。このようなレーザビーム径が小さく高出力密度を出
力するレーザ距離計は非常に高価であるとともに、安全
上の対策が必要であるため、取り扱いが困難である。[0003] With such a coil shape measuring technique, it is easy to grasp the overall shape of a telescope, but if the thickness of the coil to be measured is smaller than the diameter of the laser beam, the S / N ratio is low. The ratio becomes small, making it impossible to measure unevenness. For example, when detecting a strip-shaped steel coil with a thickness of about 1 mm and protruding one strip-shaped steel sheet of the coil, the laser used in the distance meter used will detect a protruding one unless the beam diameter is less than the plate thickness. Is difficult to perform, and to be able to reliably grasp the reflected light,
For example, a laser having a high output density of class 3 or more is required. Such a laser rangefinder having a small laser beam diameter and outputting a high output density is very expensive, and requires safety measures, so that it is difficult to handle.
【０００４】なお、レーザ装置のクラス分けはＪＩＳ
Ｃ６８０２にも規定があり、概ね次の通りである。[0004] The classification of laser devices is based on JIS.
C6802 also has rules, which are generally as follows.
【０００５】（１）クラス１：人体に障害を与えない低
出力であって、おおむね０．３９μＷ以下のもの。[0005] (1) Class 1: low output which does not cause any harm to the human body and which is approximately 0.39 μW or less.
【０００６】（２）クラス２：可視光線（波長：４００
ｎｍ〜７００ｎｍ）で、人体の防御反応により障害を回
避し得る程度の出力以下であって、おおむね０．３９μ
Ｗを超え１ｍＷ以下のもの。(2) Class 2: visible light (wavelength: 400
nm to 700 nm), which is less than the output that can avoid obstacles due to the defense reaction of the human body, and is approximately 0.39 μm.
Those exceeding W and 1 mW or less.
【０００７】（３）クラス３Ａ：光学的手段でのビーム
内観察は危険で、放出レベルがクラス２の出力の５倍以
下であって、おおむね１ｍＷを超え５ｍＷ以下のもの。(3) Class 3A: Intra-beam observation by optical means is dangerous, and the emission level is 5 times or less the output of class 2 and generally exceeds 1 mW and 5 mW or less.
【０００８】（４）クラス３Ｂ：直接または鏡面反射に
よるレーザ光線のばく露により眼の障害を生じる可能性
があるが、拡散反射によるレーザ光線にばく露しても眼
の障害を生じる可能性のない出力であって、おおむね５
ｍＷを超え０．５Ｗ以下のもの。(4) Class 3B: Exposure of a laser beam by direct or specular reflection may cause eye damage, but exposure to a laser beam by diffuse reflection may cause eye damage. No output, roughly 5
Those exceeding mW and 0.5 W or less.
【０００９】（５）クラス４：拡散反射によるレーザ光
線のばく露でも、眼に障害を与える可能性のある出力で
あって、おおむね０．５Ｗを超えるもの。(5) Class 4: An output that may cause damage to the eyes even when exposed to a laser beam due to diffuse reflection, and which generally exceeds 0.5 W.
【００１０】クラス１、２では格別の安全措置を要しな
いが、クラス３以上ではクラスの高いほどきびしい安全
措置が必要である。No special safety measures are required in Classes 1 and 2, but in Classes 3 and higher, stricter safety measures are required for higher classes.
【００１１】[0011]
【発明が解決しようとする課題】従来のコイル端面に対
して垂直にレーザビームを照射してコイル端面を計測す
る技術では、厚さの薄い鋼板コイルの側面をレーザ距離
計で計測するには、高出力、高価で安全上の対策が必要
となると言う問題があった。In the conventional technique of measuring a coil end face by irradiating a laser beam perpendicularly to the coil end face, in order to measure the side face of a thin steel coil with a laser distance meter, There was a problem that high output, expensive, and safety measures were required.
【００１２】本発明は上記問題点を解決したコイル形状
の測定方法を開発したもので、安価なレーザ距離計を用
いて、薄い１枚の帯状鋼板が側面に突出している場合で
も確実にコイル端面の形状を測定可能なコイル形状の測
定方法及びその装置を提供するものである。The present invention has developed a method for measuring the shape of a coil which solves the above-mentioned problems, and uses an inexpensive laser distance meter to ensure that even if one thin strip of steel plate protrudes from the side surface, the coil end surface can be reliably formed. The present invention provides a coil shape measuring method and apparatus capable of measuring the shape of a coil.
【００１３】[0013]
【課題を解決するための手段】本発明は、上記問題点を
解決するためになされたもので、その技術手段は、帯状
鋼板コイルの軸直角端面に対して鋭角をなす方向からレ
ーザ距離計のレーザビームを照射し、距離計と前記端面
との距離を測定し端面の凹凸形状を計測することを特徴
とするコイル形状の測定方法である。コイルの側面に対
して鋭角をなす方向から斜めにレーザビームを照射する
ので、板厚の薄い鋼板でも、突出している状態を安価な
レーザ距離計で検出することができる。この場合に、従
来と同様にレーザ距離計をコイル端面に沿って相対移動
させ、コイルの１もしくは複数の直径について、又はコ
イル端面全面について形状を測定することはもちろん可
能である。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and its technical means is to provide a laser range finder with an acute angle with respect to an end perpendicular to the axis of a steel strip coil. A coil shape measuring method comprising irradiating a laser beam, measuring a distance between a distance meter and the end face, and measuring an uneven shape of the end face. Since the laser beam is irradiated obliquely from a direction forming an acute angle with respect to the side surface of the coil, the protruding state can be detected by an inexpensive laser distance meter even with a thin steel plate. In this case, it is of course possible to relatively move the laser range finder along the coil end face and measure the shape of one or more diameters of the coil or the entire coil end face as in the related art.
【００１４】上記の帯状鋼板コイルの軸直角端面に対し
て鋭角をなす方向からレーザ距離計のレーザビームを照
射し、距離計と前記端面との距離を測定し端面の凹凸形
状を計測する方法において、前記レーザ距離計を揺動さ
せてコイル軸直角端面（コイル端面）全面を測定し、測
定データを立体角でデータ処理を行い、コイル端面全面
の凹凸を計測することとすれば、コイル端面全面の凹凸
形状を容易に測定することができ好適である。In the above method for irradiating a laser beam of a laser range finder from a direction forming an acute angle with respect to the end surface perpendicular to the axis of the strip-shaped steel sheet coil, measuring the distance between the range finder and the end surface, and measuring the uneven shape of the end surface. If the laser rangefinder is swung, the entire surface at the right angle to the coil axis (coil end surface) is measured, the measurement data is subjected to data processing at a solid angle, and the unevenness of the entire coil end surface is measured. This is suitable because the uneven shape of the sample can be easily measured.
【００１５】上記本発明方法を好適に実施することがで
きる本発明の装置は、帯状鋼板コイルの軸直角端面に斜
めにレーザビームを照射するレーザ距離計と、レーザ距
離計を前記端面全面を照射するように立体的に揺動させ
る揺動装置と、レーザ距離計の揺動運動及びレーザ距離
計の測定データを処理してコイル端面の凹凸形状を演算
する演算装置とを備えたことを特徴とするコイル形状の
測定装置である。The apparatus of the present invention which can preferably carry out the above-mentioned method of the present invention is a laser range finder for irradiating a laser beam obliquely to an end surface of a strip-shaped steel coil perpendicular to the axis, and irradiating the entire surface of the end surface with a laser range finder. A swinging device that swings three-dimensionally so as to perform the swinging motion of the laser rangefinder and a measurement device that processes the measurement data of the laser rangefinder to calculate the uneven shape of the coil end surface. This is a coil shape measuring device.
【００１６】[0016]
【発明の実施の形態】以下図面を参照して本発明の実施
の形態を説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１７】図２に示すように、測定対象であるコイル
端面２に対して斜め方向からレーザビーム１１を照射す
るようにレーザ距離計１０を設置することによって、コ
イル端面２の凹凸を投影面としてとらえることができ
る。そのため、使用するレーザ距離計１０のレーザビー
ム１１の径を、測定コイルの板厚によらず測定したい突
出量に応じて選定することが可能であり、また面でとら
えるため反射光の確保も容易になる。これにより、低出
力（クラス２以下）のレーザ距離計１０の使用が可能と
なる。このレーザ距離計１０を矢印１８で示すように移
動させてコイル端面２の凹凸形状を測定することができ
る。As shown in FIG. 2, a laser rangefinder 10 is installed so as to irradiate a laser beam 11 from a diagonal direction to the coil end surface 2 to be measured. Can be caught. Therefore, the diameter of the laser beam 11 of the laser range finder 10 to be used can be selected according to the projection amount to be measured regardless of the thickness of the measurement coil, and it is easy to secure reflected light because it is captured on a surface. become. This allows the use of a low-power (class 2 or less) laser rangefinder 10. By moving the laser distance meter 10 as shown by an arrow 18, the uneven shape of the coil end surface 2 can be measured.
【００１８】図１は本発明の別の実施例のコイル形状の
測定方法を示す図である。図１に示すコイル形状の測定
方法は、コイル１の軸直角端面２に対して鋭角をなす方
向からレーザビーム１１を照射するようにレーザ距離計
１０を設置し、このレーザ距離計１０の測定範囲をコイ
ル端面２全面に亘るようにレーザ距離計１１を揺動装置
１５で矢印１４で示すように立体的に揺動させて、レー
ザビーム１２、１３で示すように、コイル端面２の全範
囲の測定を行う。測定されたデータを測定方式に合致さ
せて演算装置１６に入力し、立体角でデータ処理し、コ
イル端面の凹凸形状を測定する。測定結果は記録装置１
７に記憶させる。FIG. 1 is a diagram showing a method of measuring a coil shape according to another embodiment of the present invention. In the method of measuring the coil shape shown in FIG. 1, a laser distance meter 10 is installed so as to irradiate a laser beam 11 from a direction forming an acute angle with respect to an end surface 2 of the coil 1 perpendicular to the axis. The laser range finder 11 is three-dimensionally oscillated by the oscillating device 15 so as to cover the entire surface of the coil end face 2 as shown by an arrow 14 so as to cover the entire area of the coil end face 2 as shown by laser beams 12 and 13. Perform the measurement. The measured data is input to the arithmetic unit 16 in conformity with the measurement method, and data processing is performed at a solid angle to measure the uneven shape of the coil end surface. The measurement result is recorded on the recording device 1.
7 is stored.
【００１９】上記のように、測定対象であるコイル端面
２に対し斜め方向からレーザビーム１１を照射しなが
ら、このレーザ距離計１０を揺動させることにより、コ
イル全範囲の形状測定が可能となる。図１のように、レ
ーザ距離計を揺動させる場合には、計測データが極座標
によるものとなる。そのため立体角でのデータ処理を行
い平面形状のデータに変換する。As described above, by oscillating the laser distance meter 10 while irradiating the laser end 11 from the oblique direction to the coil end surface 2 to be measured, the shape of the entire coil can be measured. . As shown in FIG. 1, when the laser rangefinder is swung, the measurement data is based on polar coordinates. Therefore, data processing is performed at a solid angle to convert the data into data of a planar shape.
【００２０】極座標（ｒ1，θ1）から直交座標（ｘ1，
ｙ1）への変換例を図５を参照して説明する。コイル１
の端面２に対して斜め方向からレーザ距離計１０により
測定点Ａの距離ｒ1，角度θ1を測定する。コイルの幅を
Ｄとしコイル幅方向中心とレーザ距離計１０との水平距
離をＬ1、コイル１の端面２とレーザ距離計１０との水
平距離（基準端面距離）をＬ2とすると、 Ｌ2＝Ｌ1−Ｄ／２ である。測定点Ａの直交座標（ｘ1，ｙ1）は ｘ1＝ｒ1×ｃｏｓθ1 ｙ1＝ｒ1×ｓｉｎθ1 テレスコ量ｅ＝Ｌ2−ｘ1＝Ｌ1−Ｄ／２−ｘ1 この場合ｅの値に設定値（しきい値）を設け、設定値以
上はエラーとする処理を行う。From the polar coordinates (r 1 , θ 1 ), the rectangular coordinates (x 1 ,
y 1 ) will be described with reference to FIG. Coil 1
The distance r 1 and the angle θ 1 of the measurement point A are measured from an oblique direction with respect to the end face 2 by the laser distance meter 10. Assuming that the width of the coil is D, the horizontal distance between the center of the coil width direction and the laser distance meter 10 is L 1 , and the horizontal distance between the end face 2 of the coil 1 and the laser distance meter (reference end face distance) is L 2 , L 2 = L 1 -D / 2. The rectangular coordinates (x 1 , y 1 ) of the measurement point A are x 1 = r 1 × cos θ 1 y 1 = r 1 × sin θ 1 telescopic amount e = L 2 −x 1 = L 1 −D / 2−x 1 In the case (e), a set value (threshold value) is provided for the value of e, and an error is performed if the set value is exceeded.
【００２１】なお、図２に示すように、レーザビーム１
１をコイル端面２に斜めに照射させ、レーザ距離計１０
をコイル端面２に平行な平面内を移動させて距離を測定
し、この測定データを処理してコイル端面の形状を測定
することももちろん可能である。Incidentally, as shown in FIG.
1 is applied obliquely to the coil end face 2 and a laser distance meter 10
Can be moved in a plane parallel to the coil end face 2 to measure the distance, and the measured data can be processed to measure the shape of the coil end face.
【００２２】以上のような方法により、従来の小径大出
力レーザにかわって大径低出力レーザを使用することが
可能となる。本発明のコイル形状の測定方法によれば、
安価なレーザ距離計を用いて、対象とするコイルの板厚
によらず、軸直角端面から突出している板の突出量を確
実に検出することができる。By the above method, a large-diameter low-power laser can be used instead of the conventional small-diameter large-power laser. According to the coil shape measuring method of the present invention,
By using an inexpensive laser distance meter, it is possible to reliably detect the amount of protrusion of a plate projecting from the end surface perpendicular to the axis, regardless of the thickness of the target coil.
【００２３】図３は、レーザ距離計を揺動させてコイル
端面を測定し、立体角で処理したデータの１つの半径に
沿うデータの例を示すグラフである。これよりコイルの
突出部の検出が可能であることがわかる。FIG. 3 is a graph showing an example of data along one radius of data obtained by measuring a coil end face by oscillating a laser range finder and processing the result at a solid angle. From this, it can be seen that the protrusion of the coil can be detected.
【００２４】なお、以上の説明ではコイルの片側の突出
部の測定の例を示したが、凹部についてはコイル逆側の
面では突出部となるため、逆側のコイル端面からの測定
により判別可能である。In the above description, an example of measurement of the protruding portion on one side of the coil has been described. However, since the concave portion is a protruding portion on the surface opposite to the coil, it can be determined by measurement from the coil end surface on the opposite side. It is.
【００２５】[0025]
【発明の効果】本発明のコイル形状の測定方法は以上の
ように構成されているので、安価なレーザ距離計を用い
て、対象とするコイルの板厚によらず、軸直角端面から
突出している板の突出量を確実に検出することができ、
寄与するところが非常に大である。Since the method for measuring the shape of a coil according to the present invention is constructed as described above, it is possible to use an inexpensive laser range finder to project from the end surface perpendicular to the axis irrespective of the thickness of the target coil. Can reliably detect the amount of protrusion of the plate
The contribution is very large.
【図１】実施例のコイル形状の測定方法を示す説明図で
ある。FIG. 1 is an explanatory diagram illustrating a method of measuring a coil shape according to an embodiment.
【図２】別のコイル形状の測定方法を示す説明図であ
る。FIG. 2 is an explanatory view showing another method of measuring a coil shape.
【図３】実施例の検出を示すグラフである。FIG. 3 is a graph showing detection of an example.
【図４】従来技術の説明図である。FIG. 4 is an explanatory diagram of a conventional technique.
【図５】極座標と直交座標の変換説明図である。FIG. 5 is an explanatory diagram of conversion between polar coordinates and rectangular coordinates.
１ コイル ２ 側面（軸直角端面） １０ レーザ距離計 １１、１２、１３ レーザビーム １４ 矢印 １５ 揺動装置 １６ 演算装置 １７ 記録装置 １８ 矢印 DESCRIPTION OF SYMBOLS 1 Coil 2 Side surface (end surface perpendicular to axis) 10 Laser rangefinder 11, 12, 13 Laser beam 14 Arrow 15 Swinging device 16 Computing device 17 Recording device 18 Arrow
フロントページの続き Ｆターム(参考） 2F065 AA06 AA52 AA53 BB08 CC06 FF11 GG04 HH04 HH12 JJ08 MM15 PP05 PP22 QQ25 Continued on the front page F term (reference) 2F065 AA06 AA52 AA53 BB08 CC06 FF11 GG04 HH04 HH12 JJ08 MM15 PP05 PP22 QQ25
Claims (3)
角をなす方向からレーザ距離計のレーザビームを照射
し、距離計と前記端面との距離を測定しコイル端面の凹
凸形状を計測することを特徴とするコイル形状の測定方
法。1. A method for irradiating a laser beam from a laser range finder from a direction at an acute angle to an end surface perpendicular to an axis of a strip-shaped steel coil, measuring a distance between the range finder and the end surface, and measuring an uneven shape of the coil end surface. A method for measuring a coil shape, characterized in that:
面全面を測定し、測定データを立体角でデータ処理を行
い、コイル端面全面の凹凸形状を計測することを特徴と
する請求項１記載のコイル形状の測定方法。2. The method according to claim 1, wherein the laser rangefinder is oscillated to measure the entire surface of the coil end surface, and the measured data is subjected to data processing in a solid angle to measure the unevenness of the entire surface of the coil end surface. Method of measuring coil shape.
ーザビームを照射するレーザ距離計と、該レーザ距離計
を前記端面全面を照射するように揺動させる揺動装置
と、レーザ距離計の揺動運動及びレーザ距離計の測定デ
ータを処理してコイル端面の凹凸形状を演算する演算装
置とを備えたことを特徴とするコイル形状の測定装置。3. A laser range finder for irradiating a laser beam obliquely to an end surface perpendicular to the axis of a strip-shaped steel coil, an oscillating device for oscillating the laser range finder so as to irradiate the entire end surface thereof, and a laser range finder. A calculating device for processing the oscillating motion and the data measured by the laser range finder to calculate the uneven shape of the coil end surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11147976A JP2000337830A (en) | 1999-05-27 | 1999-05-27 | Coil shape measuring method and device therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11147976A JP2000337830A (en) | 1999-05-27 | 1999-05-27 | Coil shape measuring method and device therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000337830A true JP2000337830A (en) | 2000-12-08 |
Family
ID=15442365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11147976A Pending JP2000337830A (en) | 1999-05-27 | 1999-05-27 | Coil shape measuring method and device therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000337830A (en) |
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| CN102135423A (en) * | 2010-01-25 | 2011-07-27 | 中国科学院遥感应用研究所 | Device and method for measuring roughness of earth surface |
| JP2013540984A (en) * | 2010-07-15 | 2013-11-07 | ジ ヨーロピアン アトミック エネジー コミュニティ（ユーラトム），リプレゼンテッド バイ ジ ヨーロピアン コミッション | How to identify moving objects safely |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8728236B2 (en) | 2003-11-13 | 2014-05-20 | Cree, Inc. | Low dislocation density III-V nitride substrate including filled pits and process for making the same |
| JP2010286158A (en) * | 2009-06-11 | 2010-12-24 | Jfe Steel Corp | Charge condition measuring device for sintered material and method for manufacturing sintered ore |
| CN102135423A (en) * | 2010-01-25 | 2011-07-27 | 中国科学院遥感应用研究所 | Device and method for measuring roughness of earth surface |
| JP2013540984A (en) * | 2010-07-15 | 2013-11-07 | ジ ヨーロピアン アトミック エネジー コミュニティ（ユーラトム），リプレゼンテッド バイ ジ ヨーロピアン コミッション | How to identify moving objects safely |
| CN103868477A (en) * | 2014-03-28 | 2014-06-18 | 山东颐荣集团有限公司 | Wall flatness measuring instrument and measuring method thereof |
| US10890438B2 (en) | 2016-04-26 | 2021-01-12 | Mitsui High-Tec, Inc. | Method for measuring laminated iron core |
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