JPS5937407A - Method for measuring flatness of metallic sheet material - Google Patents
Method for measuring flatness of metallic sheet materialInfo
- Publication number
- JPS5937407A JPS5937407A JP14794682A JP14794682A JPS5937407A JP S5937407 A JPS5937407 A JP S5937407A JP 14794682 A JP14794682 A JP 14794682A JP 14794682 A JP14794682 A JP 14794682A JP S5937407 A JPS5937407 A JP S5937407A
- Authority
- JP
- Japan
- Prior art keywords
- flatness
- metal sheet
- light source
- measuring
- sensor
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/30—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
- G01B11/306—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces for measuring evenness
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
Description
【発明の詳細な説明】
発明の技術分野
本発明は金属シート材、特に板厚の薄い金属シート材の
平面度測定法に関するものである。DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention relates to a method for measuring the flatness of metal sheet materials, particularly thin metal sheet materials.
従来技術と問題点
従来、特に板厚の薄い金属シート材の平面度を検定する
のに次の各種の方法が採用されている。Prior Art and Problems Conventionally, the following various methods have been employed to verify the flatness of particularly thin metal sheet materials.
（１１平面度の大きい場合は、第１図に示すように、定
盤１上に金属シート２を置き、これらの間の隙間をブロ
ックゲージ３またはノギス（図示せず）等で測定する。(11 If the flatness is large, as shown in FIG. 1, place the metal sheet 2 on the surface plate 1 and measure the gap between them with a block gauge 3 or a caliper (not shown).
（２）平面度の小さい場合は、フラットネステスタに乗
せて測定する。(2) If the flatness is small, measure it by placing it on a flatness tester.
しかし、（１）の場合は、測定が面倒で、しかもシート
周辺部の測定は可能であるが中央部の測定は困難ちり、
（２）の場合は、大きな面積が測れないという欠点をそ
れぞれ有していた。However, in the case of (1), measurement is troublesome, and although it is possible to measure the periphery of the sheet, it is difficult to measure the center.
In the case of (2), each had the disadvantage that a large area could not be measured.
発明の目的
本発明は上述の欠点を解決するだめのもので、平面度の
大小に拘らず各部の平面度を容易にしかも連続的に測定
することのできる金属シート材の平面度測定法を提供す
ることを目的としている。OBJECTS OF THE INVENTION The present invention is intended to solve the above-mentioned drawbacks, and provides a method for measuring the flatness of metal sheet materials that can easily and continuously measure the flatness of each part regardless of the size of the flatness. It is intended to.
発明の構成
本発明では、上述の目的を達成するため、金属シートを
一方向に移動させながら、該金属シート上に設けられ該
金属シートの移動方向と交差する方向に伸びる細い直線
状光源の金属シートに写る写像をセンサによ多測定して
平面度測定を行う。Structure of the Invention In order to achieve the above-mentioned object, in the present invention, while a metal sheet is moved in one direction, a thin linear light source provided on the metal sheet and extending in a direction intersecting the moving direction of the metal sheet is provided. The flatness is measured by measuring the image reflected on the sheet using a sensor.
発明の実施例 以下、第２図に関連して本発明の詳細な説明する。Examples of the invention The invention will now be described in detail with reference to FIG.
第２図は本発明の方法による平面度測定要領を示す斜視
図で、図中、１１は光源、１２は２次元イメージセンサ
等のセンサである。光源１１は定盤１上に平行に設けら
れた細い直線状のもので、センサ１２は定盤１上の光源
１１からずれた位置に設けられている。FIG. 2 is a perspective view showing the procedure for measuring flatness according to the method of the present invention. In the figure, 11 is a light source, and 12 is a sensor such as a two-dimensional image sensor. The light source 11 is a thin straight line provided in parallel on the surface plate 1, and the sensor 12 is provided at a position offset from the light source 11 on the surface plate 1.
金属シート２の平面度を測定する場合には、該金属シー
ト２を光源１１の下の定盤１上に乗せて該金属ンート２
に写った光源１１の写像１６をセンサ１２で測定する。When measuring the flatness of the metal sheet 2, place the metal sheet 2 on the surface plate 1 under the light source 11 and
The sensor 12 measures the map 16 of the light source 11 captured in the image.
この場合、金属シート２を矢印方向（光源１１が伸びる
方向と交差する方向）に移動させることにより連続的な
測定が可能である。このような方法によれば、平面度の
大小に拘らず各部の平面度を連続的に測定することがで
き、しかも従来のブロックゲージ使用等の場合に比べて
作業ははるかに容易である。In this case, continuous measurement is possible by moving the metal sheet 2 in the direction of the arrow (direction that intersects the direction in which the light source 11 extends). According to such a method, the flatness of each part can be continuously measured regardless of the size of the flatness, and the work is much easier than when using a conventional block gauge.
発明の効果
以上述べたように、本発明によれば、金属シートの平面
度測定を平面度の大小に拘らず容易にしかも連続的に行
うことが可能である。Effects of the Invention As described above, according to the present invention, it is possible to easily and continuously measure the flatness of a metal sheet regardless of the magnitude of the flatness.
第１図は従来の金属シート平面度測定要領を示す斜視図
、第２図は本発明を適用した金属シート平面度測定要領
を示す斜視図で、図中、１は定盤、２は金属シート、１
１は細い直線状の光源、１２は２次元イメージセンサ等
のセンサ、１３は金属シート２に写った光源１１の写像
である。
特許出願人富士通株式会社
代理人弁理士玉蟲久五部
（外３名）Fig. 1 is a perspective view showing a conventional method for measuring the flatness of a metal sheet, and Fig. 2 is a perspective view showing a method for measuring the flatness of a metal sheet to which the present invention is applied. In the figure, 1 is a surface plate, 2 is a metal sheet ,1
1 is a thin linear light source, 12 is a sensor such as a two-dimensional image sensor, and 13 is a mapping of the light source 11 reflected on the metal sheet 2. Patent applicant Fujitsu Ltd. Representative Patent Attorney Gobe Tamamushi (3 others)
Claims (1)
ートを前記光源が伸びる方向と交差する方向に移動させ
ながら、前記金属シートに写る前記光源の写像を、前記
金属シート上に前記光源からずらして設けられたセンサ
により連続的に測定することを特徴とする金属シート材
の平面度測定法。A thin linear light source is placed opposite to a metal sheet, and while the metal sheet is moved in a direction intersecting the direction in which the light source extends, the mapping of the light source reflected on the metal sheet is shifted from the light source onto the metal sheet. A method for measuring the flatness of a metal sheet material, which is characterized by continuously measuring the flatness of a metal sheet material using a sensor installed at the
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14794682A JPS5937407A (en) | 1982-08-26 | 1982-08-26 | Method for measuring flatness of metallic sheet material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14794682A JPS5937407A (en) | 1982-08-26 | 1982-08-26 | Method for measuring flatness of metallic sheet material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5937407A true JPS5937407A (en) | 1984-02-29 |
Family
ID=15441636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14794682A Pending JPS5937407A (en) | 1982-08-26 | 1982-08-26 | Method for measuring flatness of metallic sheet material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5937407A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0429847U (en) * | 1990-06-29 | 1992-03-10 | ||
| WO2006007704A1 (en) * | 2004-07-16 | 2006-01-26 | Dofasco Inc. | Flatness monitor |
-
1982
- 1982-08-26 JP JP14794682A patent/JPS5937407A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0429847U (en) * | 1990-06-29 | 1992-03-10 | ||
| WO2006007704A1 (en) * | 2004-07-16 | 2006-01-26 | Dofasco Inc. | Flatness monitor |
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