JPH0725615Y2 - Thickness profile measuring device - Google Patents
Thickness profile measuring deviceInfo
- Publication number
- JPH0725615Y2 JPH0725615Y2 JP468990U JP468990U JPH0725615Y2 JP H0725615 Y2 JPH0725615 Y2 JP H0725615Y2 JP 468990 U JP468990 U JP 468990U JP 468990 U JP468990 U JP 468990U JP H0725615 Y2 JPH0725615 Y2 JP H0725615Y2
- Authority
- JP
- Japan
- Prior art keywords
- measured
- displacement
- rolls
- copying
- thickness
- 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.)
- Expired - Lifetime
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- A Measuring Device Byusing Mechanical Method (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は、厚鋼板や薄鋼板等の圧延体を被測定物体とし
て、その厚さ方向プロフィール（断面形状）を測定する
厚みプロフィール測定装置に関するものである。[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a thickness profile measuring device for measuring a thickness direction profile (cross-sectional shape) of a rolled body such as a thick steel plate or a thin steel plate as an object to be measured. It is a thing.
（従来の技術） この種厚みプロフィール測定装置に使用する厚み計その
ものとしては、Ｘ線やγ線等の放射線の透過減衰量か
ら被測定物体の厚みを求める方式、上下面からレーザ
ー３角測量方式やマグネスケール等の変位計で表面まで
の距離を測定して変位計間の距離から差し引くことによ
り厚みを求める方式、等が使われている。(Prior Art) As a thickness meter itself used in this type of thickness profile measuring apparatus, a method of determining the thickness of an object to be measured from the transmission attenuation of radiation such as X-rays and γ-rays, a laser triangulation method from the upper and lower surfaces A method is used in which the distance to the surface is measured with a displacement gauge such as a magnetometer or the like, and the thickness is calculated by subtracting the distance from the distance between the displacement gauges.
また、小さな被測定物体の簡便な測定方法として、マイ
クロメータでの厚み測定や超音波厚み計での測定を多点
にわたって実施する方法も使用されている。Further, as a simple measuring method for a small object to be measured, a method of performing thickness measurement with a micrometer or measurement with an ultrasonic thickness gauge at multiple points is also used.
そして、圧延体の自動断面形状測定方法として常用され
ているのは、厚み計を被測定物体の幅方向に走行させる
方式のものである。すなわち、第３図に示すように、被
測定物体21の幅方向に、レール22上を移動可能に設置さ
れたコ字状フレーム23の上下先端部に、一対の変位計24
a、24bを設けてなり、両変位計24a、24bにより被測定物
体21表面までの距離を測定して、両変位計24a、24b間の
距離から差し引くことにより、被測定物体21の厚みを全
幅にわたって求めるものである。A method commonly used as an automatic sectional shape measuring method for a rolled body is a method in which a thickness gauge is run in the width direction of the object to be measured. That is, as shown in FIG. 3, a pair of displacement gauges 24 are provided at the upper and lower ends of a U-shaped frame 23 movably installed on the rail 22 in the width direction of the measured object 21.
a and 24b are provided, the distance to the surface of the object to be measured 21 is measured by both displacement meters 24a and 24b, and the thickness of the object to be measured 21 is reduced to the full width by subtracting from the distance between both displacement meters 24a and 24b. It is something that is sought after.
（考案が解決しようとする課題） ところで、上記従来のものでは、手動での多点測定は、
多大の測定時間と労力を要し、また測定再現性や精度に
も問題がある。(Problems to be solved by the invention) By the way, in the above-mentioned conventional one, manual multi-point measurement is
It takes a lot of time and labor for measurement, and there is a problem in measurement reproducibility and accuracy.
一方、自動測定装置は直線上のレール22上を走行するた
め、被測定物体21の厚み方向と走行方向が直角でないと
測定誤差を生じるという問題点がある。つまり、第３図
（イ）に示すように被測定物体21が斜めに置かれたり、
第３図（ロ）に示すように被測定物体21に湾曲がある場
合には本来の厚みであるT0ではなくT1を測定することに
なる。従って、例えば圧延生産現場では、測定装置の設
置精度を管理して斜め測定とならないようにしたり、被
測定物体に引張り張力をかけることによって湾曲が生じ
ないようにして第３図に示すような事態を避けるように
しているのが現状である。On the other hand, since the automatic measuring device travels on a straight rail 22, there is a problem that a measurement error occurs unless the thickness direction of the object to be measured 21 and the traveling direction are at right angles. That is, as shown in FIG. 3 (a), the measured object 21 is placed diagonally,
When the measured object 21 has a curvature as shown in FIG. 3B, T 1 is measured instead of the original thickness T 0 . Therefore, for example, in a rolling production site, the accuracy of installation of the measuring device is controlled to prevent oblique measurement, or bending is not caused by applying tensile tension to the object to be measured, as shown in FIG. The current situation is to avoid.
しかしながら、剪断後の被測定物体の測定では、巻き癖
等の湾曲を矯正することは特に厚み2mm以上の鋼板では
難しい。また、被測定物体を上下から剛体で挟みこんで
矯正する方法等が考えられるが、装置が大型となり測定
準備段階である矯正に要する時間、労力が多大となり能
率が悪いという問題点があった。However, in the measurement of the measured object after shearing, it is difficult to correct the curvature such as the curl, particularly in the steel sheet having a thickness of 2 mm or more. In addition, a method in which the object to be measured is sandwiched from above and below by a rigid body to correct it is considered, but there is a problem that the apparatus becomes large and the time and labor required for the correction in the preparation stage for measurement are large and the efficiency is low.
本考案は上記問題点に鑑み、湾曲した被測定物体でも精
度良く、かつ簡便に能率良く、その厚みプロフィール
（すなわち断面形状）を測定することができる厚みプロ
フィール測定装置を提供することを目的としてなされた
ものでる。The present invention has been made in view of the above problems, and an object thereof is to provide a thickness profile measuring apparatus capable of measuring a thickness profile (that is, a cross-sectional shape) of a curved object to be measured accurately and easily and efficiently. It is good.
（課題を解決するための手段） 上記課題を解決するために本考案の厚みプロフィール測
定装置は、被測定物体の表裏両面方向から変位計で被測
定物体までの距離を測定して両変位計間隔から差し引く
ことにより被測定物体の厚みプロフィールを求める測定
装置において、コ字形支持体の内側部に設けられ被測定
物体端面に追従する１組のガイドロールと、コ字形支持
体の上下内面に対向して設けられ被測定物体表面に追従
する３組の倣いロールと、該３組の倣いロール間におい
て被測定物体の表裏両面方向の変位を測定するべく設け
られた１組の変位計とを備えているのである。(Means for Solving the Problem) In order to solve the above problems, the thickness profile measuring apparatus of the present invention measures the distance from the front and back sides of the measured object to the measured object with a displacement meter and measures the distance between both displacement meters. In the measuring device that obtains the thickness profile of the object to be measured by subtracting from it, a pair of guide rolls that are provided inside the U-shaped support and follow the end surface of the object to be measured, and face the upper and lower inner surfaces of the U-shaped support. Provided with three sets of scanning rolls that follow the surface of the object to be measured, and one set of displacement gauges provided to measure the displacement of the object to be measured between the three sets of scanning rolls in the front and back sides. Is there.
また、上記３組の倣いロールの外側に、更に１組の変位
計を設けているのである。Further, one set of displacement gauge is provided outside the above three sets of copying rolls.
（作用） 本考案は上記した構成によって、被測定物体端面がガイ
ドロールに追従するとともに、該被測定物体の湾曲面は
３組の倣いロールに追従することになり、この倣いロー
ルに追従しながら、その倣いロール間に設けられた変位
計で厚みプロフィールが測定されることとなる。(Operation) According to the present invention, the end surface of the object to be measured follows the guide roll and the curved surface of the object to be measured follows the three sets of copying rolls, while following the copying rolls. The thickness profile is measured by a displacement gauge provided between the copying rolls.
また、３組の倣いロールの外側に設けた変位計によっ
て、当該３組の倣いロールが被測定物体に全て対向した
状態で、その外側に位置する被測定物体の端部の厚みを
測定することができるものである。Further, the displacement gauges provided outside the three sets of copying rolls measure the thicknesses of the end portions of the measurement target located outside the three sets of copying rolls in a state where they are all opposed to the measurement target. Is something that can be done.
（実施例） 以下本考案の実施例の厚みプロフィール測定装置につい
て、第１図及び第２図を参照しながら説明する。(Example) Hereinafter, a thickness profile measuring apparatus according to an example of the present invention will be described with reference to FIGS. 1 and 2.
第１図は本考案の第１の実施例であり、（イ）図はその
正面図、（ロ）図は断面して示す側面図、（ハ）図は平
面図である。FIG. 1 is a first embodiment of the present invention, in which (a) is a front view thereof, (b) is a side view showing a cross section, and (c) is a plan view.
この第１図において、１は断面コ字形支持体であり、側
部1aと上部1b及び下部1cとを有し、その上下部1b,1c間
に被測定物体２を挿通させるものである。そして、上記
側部1aの内側には、１組のガイドロール3a、3bを設け、
上記被測定物体２の挿通時にその端面2aに追従するよう
にしている。また、上記上下部1b、1cの内面には、対向
する３組の倣いロール4a、4bと5a、5b及び6a、6bを設
け、上記被測定物体２の上面2bと下面2cの表面に追従す
るようにしている。ここで、支持体上部1b側の倣いロー
ル4a、5a、6aは該上部1b壁に固定された軸受７に支持さ
れた基準倣いロールとして働く。一方、支持体下部1c側
の倣いロール4b、5b、6bは、該下部1c壁に支持され、か
つ上方への一定の弾性力が付与されたアーム８に支持さ
れた押さえ倣いロールとして働くものであり、アーム８
に対する弾性力の付与は例えば支持体下部1cに対するア
ーム軸部8aにねじりコイルばね等を設けることにより行
われる。In FIG. 1, reference numeral 1 denotes a U-shaped support member having a side portion 1a, an upper portion 1b and a lower portion 1c, and an object 2 to be measured is inserted between the upper and lower portions 1b, 1c. Then, a pair of guide rolls 3a and 3b are provided inside the side portion 1a,
When the object 2 to be measured is inserted, it follows the end surface 2a thereof. Further, on the inner surfaces of the upper and lower parts 1b and 1c, three sets of facing copy rolls 4a, 4b and 5a, 5b and 6a, 6b are provided to follow the surfaces of the upper surface 2b and the lower surface 2c of the measured object 2. I am trying. Here, the copying rolls 4a, 5a, 6a on the support upper part 1b side function as reference copying rolls supported by bearings 7 fixed to the upper part 1b wall. On the other hand, the copying rolls 4b, 5b, 6b on the side of the lower portion 1c of the support body are supported by the wall of the lower portion 1c and function as pressing copying rolls supported by the arm 8 to which a certain upward elastic force is applied. Yes, arm 8
The elastic force is applied to the arm shaft portion 8a with respect to the support lower portion 1c by providing a torsion coil spring or the like.
そして、上記３組の倣いロール4a〜6bの平面上のほぼ中
間部の支持体上下部1b、1cに、１組の変位計9a、9bを設
け、上記被測定物体２の表裏両面方向の変位を測定する
ようになっている。ここで、変位計9a、9bとしては、例
えばレーザ三角測量方式の変位計を用い、レーザビーム
10a、10bを被測定物体２の表裏両面に照射することによ
り、両変位計9a、9bと被測定物体２表裏両面までの距離
を測定し、両変位計9a、9b間距離から差し引くことによ
って被測定物体２の厚みを求めることができる。Then, one set of displacement gauges 9a, 9b is provided on the upper and lower portions 1b, 1c of the support body at the substantially middle portion on the plane of the three sets of the copying rolls 4a-6b, and the displacement of the measured object 2 in both front and back directions is set. Is designed to measure. Here, as the displacement meters 9a and 9b, for example, a displacement meter of a laser triangulation method is used, and a laser beam is used.
By irradiating both the front and back sides of the object 2 to be measured with 10a and 10b, the distances between both displacement gauges 9a and 9b and the both sides of the object 2 to be measured are measured, and the distance between the displacement meters 9a and 9b is subtracted from the distance to measure The thickness of the measurement object 2 can be calculated.
11は上記変位計9a、9bのレーザビーム10a、10bの貫通の
ための孔である。また、12はロータリエンコーダであ
り、上記基準倣いロール6aの軸13に直結され、当該コ字
形支持体１の走行方向の位置を認識できるようになって
いる。Reference numeral 11 is a hole through which the laser beams 10a and 10b of the displacement meters 9a and 9b penetrate. A rotary encoder 12 is directly connected to the shaft 13 of the reference copying roll 6a so that the position of the U-shaped support 1 in the traveling direction can be recognized.
以上のような構成により、被測定物体２に対し、コ字形
支持体１の上下部1b、1c間を挿通し、ガイドロール3a、
3bに端面2aを追従させ、矢印方向に走行させながら、変
位計9a、9bによる被測定物体２の表裏両面方向の変位の
測定によって被測定物体２の厚みを測定する。その際、
下側の倣いロール4b、5b、6bが弾性付与された押さえ倣
いロールとして作用するので、被測定物体２に湾曲等の
変形があってもこれに追従することとなる。ここで、本
装置の矢印方向への走行は、自動走行装置に設置して走
行しても、手動による走行でも良いが、その走行方向の
位置はロータリーエンコーダ12によって確認できる。そ
して、変位計9a、9bの出力結果と、ロータリーエンコー
ダ12の出力を、データ処理装置（図示せず）で処理する
ことにより、走行方向の被測定物体２の断面形状（厚み
プロフィール）が得られることになる。With the above configuration, the U-shaped support 1 is inserted between the upper and lower parts 1b and 1c of the object to be measured 2, and the guide roll 3a,
The end face 2a is made to follow the 3b, and while traveling in the direction of the arrow, the thickness of the measured object 2 is measured by measuring the displacement of the measured object 2 in both front and back directions by the displacement gauges 9a and 9b. that time,
Since the lower copying rolls 4b, 5b, 6b act as elastically pressed pressing copying rolls, they follow the deformation of the measured object 2 such as bending. Here, the traveling of the present device in the direction of the arrow may be performed by installing it in an automatic traveling device or traveling manually, but the position in the traveling direction can be confirmed by the rotary encoder 12. Then, the output results of the displacement meters 9a and 9b and the output of the rotary encoder 12 are processed by a data processing device (not shown) to obtain the cross-sectional shape (thickness profile) of the measured object 2 in the traveling direction. It will be.
以上説明した実施例によれば、コ字形支持体１に設置さ
れた３組の倣いロール4a、4bと5a、5b及び6a、6b間に１
組の変位計9a、9bを備えたので、被測定物体２に走行方
向及び／又は走行垂直方向に湾曲があっても、その湾曲
に倣って変位計9a、9bが常に被測定物体２の表面に垂直
な方向で表面までの距離を測定させ真の厚み測定を可能
ならしめる。また、被測定物体２の端面への倣いは、ガ
イドロール3a、3bで行うことが可能である。このよう
に、３組の倣いロール4a、4bと5a、5b及び6a、6bの中央
部に変位計9a、9bが設置されていると、湾曲が一定であ
れば必ず被測定物体２の厚みを表面に垂直方向に測定す
ることになり原理的には測定誤差を生じない。たとえ変
位計9a、9bが中央部に無くても倣いロール間隔が狭く、
かつ被測定物体２の湾曲が滑らかであれば誤差は少な
い。圧延体の場合湾曲の主原因は巻き癖なので、ほとん
どの場合湾曲は一定がかつ滑らかであり、変位計9a、9b
が３組の倣いロール4a、4bと5a、5b及び6a、6bの中央に
なくても誤差は少ないものである。According to the embodiment described above, one set is provided between the three sets of copying rolls 4a, 4b and 5a, 5b and 6a, 6b installed on the U-shaped support 1.
Since the pair of displacement gauges 9a and 9b is provided, even if the measured object 2 has a curve in the traveling direction and / or the traveling vertical direction, the displacement meters 9a and 9b always follow the surface of the measured object 2 according to the curvature. The true thickness can be measured by measuring the distance to the surface in the direction perpendicular to. Further, the copying to the end surface of the measured object 2 can be performed by the guide rolls 3a and 3b. In this way, when the displacement gauges 9a and 9b are installed at the central portions of the three sets of copying rolls 4a, 4b and 5a, 5b and 6a, 6b, the thickness of the measured object 2 must be fixed if the curvature is constant. Since the measurement is performed in the direction perpendicular to the surface, no measurement error occurs in principle. Even if the displacement gauges 9a and 9b are not in the center, the copying roll spacing is narrow,
Further, if the measured object 2 has a smooth curve, the error is small. In the case of a rolled body, the main cause of bending is curl, so in most cases the bending is constant and smooth, and the displacement gauges 9a, 9b
However, the error is small even if it is not in the center of the three sets of copying rolls 4a, 4b and 5a, 5b and 6a, 6b.
次に第２の実施例を示す第２図に基づき説明する。この
実施例は、上記実施例の３組の倣いロール4a〜6b間に設
けた１組の変位計9a、9bを倣いロール５、６間に設け、
その他に、上記３組の倣いロール4a〜6bの外側にもう１
組の変位計14a、14bを設けたものである。この実施例で
は、第１図の実施例では測定が不可能な端部までの測定
が可能となる。すなわち、一方の端部の測定は変位計9
a、9bで行い、他端部の測定を外側の変位計14a、14bで
行う。15は上記変位計14a、14bのレーザビームの貫通の
ための孔を示す。Next, a description will be given based on FIG. 2 showing a second embodiment. In this embodiment, one set of displacement gauges 9a and 9b provided between the three sets of copying rolls 4a to 6b of the above embodiment is provided between the copying rolls 5 and 6,
In addition, another one is placed on the outside of the above three sets of copying rolls 4a to 6b.
A pair of displacement gauges 14a and 14b are provided. In this embodiment, it is possible to measure up to the end which cannot be measured in the embodiment of FIG. That is, the measurement at one end is performed by the displacement meter 9
a and 9b, and the other end is measured by the outer displacement gauges 14a and 14b. Reference numeral 15 indicates a hole through which the laser beams of the displacement gauges 14a and 14b penetrate.
なお、変位計としては、上記レーザビームを用いた変位
計の他、マグネスケール等の接触式変位計等でも良い。
接触式変位計を用いれば、被測定物体表面に防錆油等が
付着していても光を用いた変位計でのように測定誤差と
ならず、また測定箇所は点であるため走行方向にも1mm
程度の測定ピッチで詳細に測定可能である。The displacement gauge may be a displacement gauge using a laser beam or a contact type displacement gauge such as a magnet scale.
With a contact type displacement meter, even if rust-preventive oil or the like adheres to the surface of the object to be measured, there will be no measurement error as with a displacement meter using light, and since the measurement points are points, there will be Also 1 mm
It is possible to measure in detail at a measurement pitch of a degree.
（考案の効果） 本考案は以上説明したように、変位計を３組の倣いロー
ル間に設けて被測定物体の表裏両面方向の変位の測定に
よってその厚みを測定するようにしたので、たとえ湾曲
のある被測定物体であっても極めて精度よくかつ高速、
簡便にその厚みプロフィール（すなわち断面形状）を測
定可能であり、また装置構成も簡単であり、安価な厚み
プロフィール測定装置を提供するものであり、極めて有
効な考案である。また、倣いロールの外側にも変位計を
設置することにより被測定物体の端部の測定も可能とな
る。(Effect of the Invention) As described above, according to the present invention, the displacement gauge is provided between the three sets of copying rolls, and the thickness of the measured object is measured by measuring the displacement in both front and back directions. Extremely accurate and high speed even for measured objects with
The thickness profile (that is, the cross-sectional shape) can be easily measured, the device configuration is simple, and an inexpensive thickness profile measuring device is provided, which is an extremely effective device. Also, by installing a displacement gauge outside the copying roll, it is possible to measure the end of the measured object.
第１図は本考案の第１の実施例を示すもので、（イ）図
はその表面図、（ロ）図は断面して示す側面図、（ハ）
図は平面図、第２図は同他の実施例を示す斜視図、第３
図（イ）（ロ）は従来例を示す説明図である。 １はコ字形支持体、２は被測定物体、3a、3bはガイドロ
ール、4a、4b、5a、5b、6a、6bは倣いロール、9a、9b、
14a、14bは変位計。FIG. 1 shows a first embodiment of the present invention, in which (a) is its surface view, (b) is a cross-sectional side view, and (c).
FIG. 2 is a plan view, FIG. 2 is a perspective view showing another embodiment, and FIG.
(A) and (B) are explanatory views showing a conventional example. 1 is a U-shaped support, 2 is an object to be measured, 3a and 3b are guide rolls, 4a, 4b, 5a, 5b, 6a and 6b are copying rolls, 9a and 9b,
14a and 14b are displacement meters.
Claims (2)
測定物体までの距離を測定して両変位計間隔から差し引
くことにより被測定物体の厚みプロフィールを求める測
定装置において、コ字形支持体の内側部に設けられ被測
定物体端面に追従する１組のガイドロールと、コ字形支
持体の上下内面に対向して設けられ被測定物体表面に追
従する３組の倣いロールと、該３組の倣いロール間にお
いて被測定物体の表裏両面方向の変位を測定するべく設
けられた１組の変位計とを備えたことを特徴とする厚み
プロフィール測定装置。1. A U-shaped support for a measuring device for measuring the distance from both sides of an object to be measured with a displacement meter to the object to be measured and subtracting the distance from both displacement gauges to obtain the thickness profile of the object to be measured. Of the guide rolls, which are provided on the inner side of the object and follow the end surface of the object to be measured, and three pairs of the follower rolls, which oppose the upper and lower inner surfaces of the U-shaped support and follow the surface of the object to be measured, And a set of displacement gauges provided to measure the displacement of the object to be measured in both front and back directions between the copying rolls.
位計を設けたことを特徴とする請求項１記載の厚みプロ
フィール測定装置。2. The thickness profile measuring device according to claim 1, wherein one set of displacement gauges is further provided outside the three sets of copying rolls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP468990U JPH0725615Y2 (en) | 1990-01-22 | 1990-01-22 | Thickness profile measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP468990U JPH0725615Y2 (en) | 1990-01-22 | 1990-01-22 | Thickness profile measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0395910U JPH0395910U (en) | 1991-09-30 |
| JPH0725615Y2 true JPH0725615Y2 (en) | 1995-06-07 |
Family
ID=31508424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP468990U Expired - Lifetime JPH0725615Y2 (en) | 1990-01-22 | 1990-01-22 | Thickness profile measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0725615Y2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4553420B2 (en) * | 1999-06-15 | 2010-09-29 | 株式会社アマダエンジニアリングセンター | Plate thickness detection method, plate thickness difference detection method, and plate material bending machine |
| JP2010044027A (en) * | 2008-08-18 | 2010-02-25 | Kanazawa Univ | Thickness measuring device and thickness distribution measuring method |
| JP5905841B2 (en) * | 2013-01-30 | 2016-04-20 | トヨタ自動車株式会社 | Sheet thickness measuring device and sheet thickness adjusting device |
| JP7089737B2 (en) * | 2018-03-30 | 2022-06-23 | 株式会社フジワーク | Sheet thickness measuring device |
| JP7133212B2 (en) * | 2018-11-16 | 2022-09-08 | 株式会社フジワーク | Handy type sheet thickness measuring instrument |
-
1990
- 1990-01-22 JP JP468990U patent/JPH0725615Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0395910U (en) | 1991-09-30 |
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