JPH11142379A - Ultrasonic probe scan holder - Google Patents
Ultrasonic probe scan holderInfo
- Publication number
- JPH11142379A JPH11142379A JP9322002A JP32200297A JPH11142379A JP H11142379 A JPH11142379 A JP H11142379A JP 9322002 A JP9322002 A JP 9322002A JP 32200297 A JP32200297 A JP 32200297A JP H11142379 A JPH11142379 A JP H11142379A
- Authority
- JP
- Japan
- Prior art keywords
- ultrasonic
- probe
- holder
- arm
- holding plates
- 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
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は高所に位置する鋼構
造物の突合せ溶接部を超音波探傷検査する際に用いる超
音波探触子走査ホルダーに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultrasonic probe scanning holder used for ultrasonic inspection of a butt weld of a steel structure located at a high place.
【０００２】[0002]
【従来の技術】たとえば、高速道路等の道路橋の建設現
場において、桁材の突合せ溶接部を超音波探傷検査する
場合、従来では、探触子を手動で走査させる方式と自動
で走査させる方式とがある。2. Description of the Related Art For example, when a butt welding portion of a girder material is subjected to ultrasonic flaw inspection at a construction site of a road bridge such as a highway, conventionally, a method of manually scanning a probe and a method of automatically scanning a probe. There is.
【０００３】[0003]
【発明が解決しようとする課題】ところが、手動方式の
場合、溶接部が下向きであると、作業者は中腰姿勢とな
るため、長時間の作業には多大の労力を要する問題があ
り、又、溶接部が立向きで且つ手を伸ばしても届かない
ような高所であると、足場が必要となる。However, in the case of the manual method, if the welded portion is directed downward, the worker is in a middle waist posture, and thus there is a problem that a long time operation requires a great deal of labor. Scaffolding is required if the weld is upright and not reachable when reaching.
【０００４】一方、自動方式の場合には、自動走査機構
をセットしなければならないが、自動走査機構は大掛か
りで高価であるだけでなく、セットするまでに時間を要
し、しかも補助作業員が必要である、という問題があ
る。On the other hand, in the case of the automatic system, an automatic scanning mechanism must be set. However, the automatic scanning mechanism is not only large and expensive, but also requires time to set, and requires an auxiliary worker. There is a problem that it is necessary.
【０００５】そこで、本発明は、高所であっても、足場
の架設や大掛かりな段取りが不要で、突合せ溶接部の超
音波探傷検査を能率的に行うことができるような超音波
探触子走査ホルダーを提供しようとするものである。Accordingly, the present invention provides an ultrasonic probe which can efficiently perform ultrasonic inspection of a butt welded portion without the need for erection of a scaffold or large-scale setup even at a high place. It is intended to provide a scanning holder.
【０００６】[0006]
【課題を解決するための手段】本発明は、上記課題を解
決するために、左右に所要間隔を隔てて配置した超音波
送信用斜角探触子と超音波受信用斜角探触子を、左右方
向に延びる前後の保持板に間隔調整可能に取り付け、該
前後の保持板の左右方向両端部をマグネット車輪を有す
る左右の支持板に支持させてホルダー本体を構成し、且
つ上記前後の保持板の中央部間に固定板を設けて、該固
定板にアームを回動自在に取り付けた構成とする。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides an ultrasonic transmission oblique probe and an ultrasonic reception oblique probe which are arranged at a required interval on the left and right. The holder body is formed by attaching the front and rear holding plates extending in the left and right direction to the front and rear holding plates so as to be able to adjust the gap, and supporting the left and right end portions of the front and rear holding plates on the left and right support plates having magnet wheels. A fixed plate is provided between the center portions of the plates, and the arm is rotatably attached to the fixed plate.
【０００７】２つの探触子が突合せ溶接部を挟むように
ホルダー本体を配置して、アームの走査でホルダー本体
を走査移動させることにより、突合せ溶接部の検査を行
うことができる。したがって、アームの長さ範囲であれ
ば、高い位置でも足場の架設が不要となる。[0007] The butt weld can be inspected by disposing the holder body so that the two probes sandwich the butt weld and moving the holder body by scanning the arm. Therefore, as long as the length of the arm is within the range, it is not necessary to install the scaffold even at a high position.
【０００８】又、左右に所要間隔を隔てて配置した超音
波送信用斜角探触子と超音波受信用斜角探触子を、左右
に対峙させた保持板に保持させ、中間部にベベルギヤを
介在させて左右方向に延びるスクリュー軸と左右方向に
延びるガイドロッドを、上記左右の保持板の前後部に貫
通配置して、該スクリュー軸とガイドロッドの左右方向
両端部を、マグネット車輪を有する左右の支持板に支持
させてホルダー本体を構成し、且つ上記スクリュー軸と
ガイドロッドの中間部間に架け渡したベベルギヤ機構の
ガイドケーシング上に、ベベルギヤ機構の入力軸を突出
させて、該入力軸に、ユニバーサルジョイントを介して
アームを取り付けた構成とした場合は、手元でのアーム
の回転操作で探触子の間隔を調整することができるよう
になる。[0008] Further, the ultrasonic transmission oblique probe and the ultrasonic reception oblique probe, which are arranged at a required interval on the left and right, are held by holding plates facing left and right. A screw shaft extending in the left-right direction and a guide rod extending in the left-right direction are disposed through the front and rear portions of the left and right holding plates, and both ends of the screw shaft and the guide rod in the left-right direction have magnet wheels. The input shaft of the bevel gear mechanism is projected on the guide casing of the bevel gear mechanism which is supported by the left and right support plates to form a holder main body, and is bridged between the screw shaft and the guide rod. If the arm is attached via a universal joint, the distance between the probes can be adjusted by rotating the arm at hand.
【０００９】更に、探触子を下方へ押し付け付勢するた
めのスプリングを組み付けた構成とすることにより、探
触子を検査対象面へ確実に接触させることができる。Further, by employing a structure in which a spring for pressing and urging the probe downward is assembled, the probe can be reliably brought into contact with the surface to be inspected.
【００１０】更に又、ユニバーサルジョイントに連結す
るアームを、芯軸と外管とからなる二重構造として、芯
軸の先端をユニバーサルジョイントに連結し、芯軸の後
端につまみを設けた構成とすることによって、探触子の
間隔調整操作をより円滑に行うことができるようにな
る。Further, the arm connected to the universal joint has a double structure consisting of a core shaft and an outer tube, and the tip of the core shaft is connected to the universal joint, and a knob is provided at the rear end of the core shaft. By doing so, the operation of adjusting the distance between the probes can be performed more smoothly.
【００１１】[0011]
【発明の実施の形態】以下、本発明の実施の形態を図面
を参照して説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１２】図１及び図２は本発明の実施の一形態を示
すもので、一対一組とした超音波送信用斜角探触子２ａ
と超音波受信用斜角探触子２ｂとを、左右に所要間隔を
隔てて向かい合わせて配設し、該両探触子２ａ，２ｂの
前面部間及び後面部間に、左右方向に延びる長孔３を有
する保持板４を配置して、両探触子２ａ，２ｂに、保持
板４の長孔３を通した止めねじ５を螺着し、両探触子２
ａ，２ｂが止めねじ５を介して長孔３に沿い左右方向へ
移動できるようにすると共に、止めねじ５の締め込みで
探触子２ａ，２ｂの間隔を固定できるようにし、又、上
記前後の保持板４の左右両端部を、下部前後位置にマグ
ネット車輪６を取り付けた支持板７に支持させて、ホル
ダー本体１を構成し、マグネット車輪６を鋼構造物表面
に吸着させることにより探触子２ａ，２ｂを鋼構造物表
面に接触させられるようにする。FIG. 1 and FIG. 2 show an embodiment of the present invention.
And the oblique angle probe 2b for ultrasonic reception are disposed to face each other at a required interval on the left and right sides, and extend in the left-right direction between the front part and the rear part of the two probes 2a and 2b. A holding plate 4 having a long hole 3 is arranged, and a set screw 5 passing through the long hole 3 of the holding plate 4 is screwed to both probes 2a and 2b.
a and 2b can be moved to the left and right along the slot 3 via the set screw 5, and the interval between the probes 2a and 2b can be fixed by tightening the set screw 5. The left and right ends of the holding plate 4 are supported by a supporting plate 7 having a magnet wheel 6 attached to the lower front and rear positions, thereby constituting the holder body 1 and the magnet wheel 6 is attracted to the surface of the steel structure to be probed. The sub-elements 2a and 2b can be brought into contact with the surface of the steel structure.
【００１３】上記保持板４と支持板７との取合部は、図
２に詳細を示す如く、支持板７の前後両端部に、上下方
向に延びる切欠孔８を設けて、この切欠孔８内に、保持
板４の端部に形成した突片４ａを、上下方向へ移動自在
に差し込み、且つ支持板７の切欠孔８よりも上部位置
に、上下方向の貫通孔９を設けると共に、該貫通孔９を
通して上方より連結ねじ１０を挿通させて、該連結ねじ
１０の下端部を保持板４の突片４ａに螺合させて連結
し、更に、該突片４ａの上面と切欠孔８の上面との間
に、上記連結ねじ１０に組み付けるようにスプリング１
１を介在させ、スプリング１１の弾発力で保持板４が押
し下げ付勢されるようにしてある。なお、保持板４が押
し下げ付勢されている状態で、探触子２ａ，２ｂの下面
とマグネット車輪６の下面との間に、探触子２ａ，２ｂ
が僅かに下方へ突出するようにレベル差Ｅが設定してあ
る。As shown in detail in FIG. 2, the connecting portion between the holding plate 4 and the support plate 7 is provided with a notch hole 8 extending vertically in both front and rear ends of the support plate 7. In the inside, a protruding piece 4a formed at the end of the holding plate 4 is movably inserted in the up and down direction, and a through hole 9 in the up and down direction is provided at a position above the notch hole 8 of the support plate 7, and A connecting screw 10 is inserted through the through hole 9 from above, and the lower end of the connecting screw 10 is screwed and connected to the protruding piece 4 a of the holding plate 4. Further, the upper surface of the protruding piece 4 a A spring 1 is mounted between the upper surface and the connection screw 10 so as to be assembled.
1, the holding plate 4 is pressed down and urged by the elastic force of the spring 11. In a state where the holding plate 4 is pressed down and biased, the probes 2a, 2b are placed between the lower surfaces of the probes 2a, 2b and the lower surface of the magnet wheel 6.
Is set to be slightly downward.
【００１４】更に、上記ホルダー本体１における前後の
保持板４の中央部上縁間に固定板１２を取り付け、且つ
該固定板１２の上面中央に、アーム１３の一端となる先
端を、ヒンジ１４にて上下方向へ回動自在に取り付け、
アーム１３の先端にホルダー本体１が支持されるように
して、全体としてＴ字型の超音波探触子ホルダーとす
る。Further, a fixing plate 12 is mounted between the upper edges of the central portions of the front and rear holding plates 4 in the holder body 1, and one end of an arm 13 is attached to the hinge 14 at the center of the upper surface of the fixing plate 12. To be rotatable vertically.
The T-shaped ultrasonic probe holder is formed as a whole so that the holder body 1 is supported at the tip of the arm 13.
【００１５】図３に示す如き桁材１５の立向きの突合せ
溶接部１６の超音波探傷検査を行う場合には、予め、突
合わせ溶接部１６の近傍の上部位置に、たとえば、マグ
ネット付きエンコーダ１７を固定して、該エンコーダ１
７から引き出したスケールワイヤ１８の先端を、ホルダ
ー本体１の保持板に４に係止させておき、左右の探触子
２ａ，２ｂが突合せ溶接部１６を挟むようにホルダー本
体１をセットして、アーム１３の下からの操作でホルダ
ー本体１を突合せ溶接部１６に沿わせて上下方向へ走査
させるようにする。When an ultrasonic flaw inspection of the butt weld 16 of the girder member 15 as shown in FIG. 3 is to be performed, an encoder 17 with a magnet, for example, must be installed in an upper position near the butt weld 16 in advance. And the encoder 1
The tip of the scale wire 18 pulled out from 7 is fixed to the holding plate 4 of the holder body 1 and the holder body 1 is set so that the right and left probes 2a and 2b sandwich the butt welded portion 16. The holder body 1 is caused to scan in the vertical direction along the butt weld 16 by an operation from below the arm 13.
【００１６】上記の場合、ホルダー本体１を桁材１５の
表面に近付けると、マグネット車輪６の下面よりも下方
へ突出するようにレベル差Ｅが設定されているため、探
触子２ａ，２ｂが最初に桁材１５の表面に接触するが、
アーム１３の操作でホルダー本体１に押付力を与える
と、探触子２ａ，２ｂを保持する保持板４がスプリング
１１に抗して相対的に押し上げられることになると同時
に、マグネット車輪６が桁材１５の表面に吸着させられ
ることになる。したがって、マグネット車輪６の作用で
ホルダー本体１の走査を安定化させることができ、且つ
探触子２ａ，２ｂは、ホルダー本体１を走査させても、
マグネット車輪６の吸着力とスプリング１１の弾発力の
作用で、桁材１５の表面に対する接触性が確保される。In the above case, the level difference E is set so that when the holder body 1 approaches the surface of the girder member 15, the level difference E is set to protrude below the lower surface of the magnet wheel 6. First comes into contact with the surface of the girder material 15,
When a pressing force is applied to the holder body 1 by the operation of the arm 13, the holding plate 4 holding the probes 2a and 2b is relatively pushed up against the spring 11, and at the same time, the magnet wheel 6 15 is adsorbed on the surface of the substrate. Therefore, the scanning of the holder main body 1 can be stabilized by the action of the magnet wheel 6, and the probes 2a and 2b can scan the holder main body 1 even when the holder main body 1 is scanned.
By the action of the attraction force of the magnet wheel 6 and the resilience of the spring 11, contact with the surface of the beam 15 is ensured.
【００１７】ホルダー本体１を走査させつつ、送信用斜
角探触子２ａから超音波を斜め方向に出射して伝搬さ
せ、突合せ溶接部１６で反射してきた散乱波を受信用斜
角探触子２ｂに入射させ、それを大きいノイズとして検
出し、ノイズエコーをＡ／Ｄ変換器によりデジタル化
し、デジタル化した波形をメモリに記録させると共に、
画像化演算器で画像化して、波形及び走査画像を表示器
にリアルタイムで表示させるようにする。又、ノイズ周
波数特性の変化により非破壊的に欠陥部の存在を検出さ
せるようにする。この際、ノイズの定量的評価は、ノイ
ズスペクトルの面積及び帯域を演算器で求め、予め作成
して記憶させておいたマスターカーブ（欠陥のない健全
な溶接部による）と比較し、欠陥量を推定することによ
って行うようにする。While scanning the holder body 1, ultrasonic waves are emitted obliquely from the transmission angle probe 2a and propagated, and the scattered waves reflected at the butt weld 16 are received by the reception angle probe. 2b, which is detected as a large noise, the noise echo is digitized by an A / D converter, and the digitized waveform is recorded in a memory.
An image is formed by an imaging calculator, and a waveform and a scanned image are displayed on a display in real time. Further, the presence of a defective portion is detected nondestructively by a change in noise frequency characteristics. At this time, the quantitative evaluation of the noise is performed by calculating the area and the band of the noise spectrum with a calculator, comparing with a master curve (by a sound weld having no defect) created and stored in advance, and determining the amount of the defect. It is done by estimating.
【００１８】なお、上述したような探傷検査を行う場
合、送信用斜角探触子２ａと受信用斜角探触子２ｂとの
間隔が適正であるかは、予め対比試験体の溶接部を検査
して確認するようにさせる。この場合、探触子２ａ，２
ｂの間隔は、止めねじ５を弛めて探触子２ａ，２ｂを移
動させることにより行うことができる。When performing the flaw detection as described above, it is determined whether the interval between the transmission angle beam probe 2a and the reception angle beam probe 2b is appropriate by checking the welded portion of the comparison specimen in advance. Have them inspect and confirm. In this case, the probes 2a, 2
The interval b can be set by loosening the set screw 5 and moving the probes 2a and 2b.
【００１９】上記において、左右の探触子２ａ，２ｂを
保持するホルダー本体１はアーム１３の操作で取り扱う
ことができるため、立向きの突合せ溶接部１６が、作業
員が単に手を伸ばした高さ位置よりも上方に位置してい
ても、アーム１３の長さ範囲であれば容易に検査するこ
とができる。又、図３における下向きの突合せ溶接部１
９に適用しても、同様に、アーム１３の操作でホルダー
本体１を走査させることで対処できるので、中腰姿勢を
とらずに検査することができる。したがって、従来方式
に比して大幅に段取り時間を短縮することができるの
で、検査作業の効率化を図ることができる。In the above description, since the holder body 1 holding the right and left probes 2a and 2b can be handled by operating the arm 13, the vertical butt welding portion 16 is provided at the height where the operator simply reaches. Even if the arm 13 is located above the position, the inspection can be easily performed within the length range of the arm 13. Also, the downward butt weld 1 in FIG.
In the same manner, even when the present invention is applied to 9, the operation can be dealt with by scanning the holder body 1 by operating the arm 13, so that the inspection can be performed without taking the middle waist posture. Therefore, the setup time can be greatly reduced as compared with the conventional method, so that the inspection work can be made more efficient.
【００２０】次に、図４及び図５は本発明の他の実施の
形態を示すもので、左右の探触子２ａ，２ｂの間隔を簡
単に調整できるようにしたものである。FIGS. 4 and 5 show another embodiment of the present invention, in which the distance between the right and left probes 2a and 2b can be easily adjusted.
【００２１】すなわち、左右に対峙させた保持板２７の
対向面部に、それぞれ探触子２ａ，２ｂを配置し、保持
板２７の対向面部前後位置に、探触子２ａ，２ｂを各々
前後から挟むように前後部ブラケット２０を張り出させ
て、該前後部ブラケット２０の先端部に上下方向の長孔
２１を設け、且つ該長孔２１に、探触子２ａ，２ｂの前
後面に立てたピン２２を挿通支持させ、更に、保持板２
７の上端に、探触子２ａ，２ｂの上方へ各々張り出すよ
うに上部ブラケット２３を取り付け、該ブラケット２３
の先端部に設けた上下方向の貫通孔２４を通して探触子
２ａ，２ｂの上面部に取付ねじ２５を螺合させて、取付
ねじ２５に、スプリング２６を介装させる。That is, the probes 2a and 2b are respectively arranged on the opposing surfaces of the holding plate 27 facing left and right, and the probes 2a and 2b are sandwiched between the front and rear positions of the opposing surfaces of the holding plate 27, respectively. The front and rear brackets 20 are protruded as described above, and a vertically long hole 21 is provided at the tip of the front and rear bracket 20, and a pin is provided in the long hole 21 on the front and rear surfaces of the probes 2 a and 2 b. 22 and the holding plate 2
7, upper brackets 23 are attached to the upper ends of the probes 7 so as to protrude above the probes 2a and 2b, respectively.
A mounting screw 25 is screwed into the upper surface of the probes 2a and 2b through a vertical through hole 24 provided at the tip of the probe, and a spring 26 is interposed in the mounting screw 25.
【００２２】又、上記左右の保持板２７の更に左右外側
方部に、下部前後位置にマグネット車輪６を取り付けた
支持板７を対峙させて配置し、該支持板７の対向面部間
には、保持板２７を移動自在に貫通させたガイドロッド
３９の両端部と、保持板２７に貫通螺合させたスクリュ
ー軸２８の両端部とを前後に支持させ、且つ該スクリュ
ー軸２８の左右方向の中間部を分断させて左右部を逆ね
じにすると共に、該分断部に上部の入力用ベベルギヤ２
９と左右の伝達用ベベルギヤ３０とからなるベベルギヤ
機構３１を介在させ、入力用ベベルギヤ２９の回転を伝
達用ベベルギヤ３０を介しスクリュー軸２８に伝えるこ
とにより、左右の探触子２ａ，２ｂの間隔をスクリュー
軸２８及びガイドロッド３９に沿わせて調整できるよう
にしたホルダー本体１′を構成する。Further, a support plate 7 having a magnet wheel 6 attached to a lower front-rear position is disposed on the left and right outer sides of the left and right holding plates 27 so as to face each other. Both ends of a guide rod 39 through which the holding plate 27 is movably penetrated and both ends of a screw shaft 28 threaded through the holding plate 27 are supported back and forth, and the middle of the screw shaft 28 in the left-right direction. The left and right portions are reverse-threaded, and the upper input bevel gear 2 is connected to the divided portion.
By interposing a bevel gear mechanism 31 composed of the transmission bevel gear 9 and the left and right transmission bevel gears 30 and transmitting the rotation of the input bevel gear 29 to the screw shaft 28 via the transmission bevel gear 30, the distance between the left and right probes 2a and 2b is reduced. The holder main body 1 ′ can be adjusted along the screw shaft 28 and the guide rod 39.
【００２３】更に、上記スクリュー軸２８の分断部を支
持するようにスクリュー軸２８とガイドロッド３９との
間に架け渡したギヤケーシング３２上に、上記入力用ベ
ベルギヤ２９の入力軸３３を突出させ、該入力軸３３
に、芯軸３４と外管３５とからなる二重構造としたアー
ム３６の上記芯軸３４の先端を、ユニバーサルジョイン
ト３７を介して連結し、且つ上記芯軸３４の後端に、つ
まみ３８を設け、つまみ３８の回転操作により芯軸３４
を回転させて、その回転をユニバーサルジョイント３７
を介し入力用ベベルギヤ２９に伝えられるようにする。Further, the input shaft 33 of the input bevel gear 29 is projected on a gear casing 32 bridged between the screw shaft 28 and the guide rod 39 so as to support the divided portion of the screw shaft 28, The input shaft 33
The distal end of the core shaft 34 of the arm 36 having a double structure consisting of the core shaft 34 and the outer tube 35 is connected via a universal joint 37, and a knob 38 is attached to the rear end of the core shaft 34. The core shaft 34 is provided by rotating the knob 38.
And the rotation is applied to the universal joint 37.
Through the input bevel gear 29.
【００２４】図４及び図５に示す構成を採用した場合、
アーム３６の芯軸３４の後端に設けられたつまみ３８を
手元で回転させて芯軸３４を回転させると、その回転力
が順次ユニバーサルジョイント３７、ベベルギヤ機構３
１、スクリュー軸２８へと伝えられるため、保持板２７
の移動を介し左右の探触子２ａ，２ｂの間隔を調整する
ことができる。したがって、図３において、立向きの突
合せ溶接部１６の検査から下向きの突合せ溶接部１９の
検査へ移行する場合等、溶接部の条件が異なる場合等
に、探触子２ａ，２ｂの間隔を簡単な操作で調整できる
ので有利である。又、探触子２ａ，２ｂと上部ブラケッ
ト２３との間に介在させたスプリング２６は、図２に示
したスプリング１１と同じ機能を有するので、検査時の
検査対象面への探触子２ａ，２ｂの接触性を確保するこ
とができる。When the configuration shown in FIGS. 4 and 5 is adopted,
When the knob 38 provided at the rear end of the core shaft 34 of the arm 36 is rotated by hand to rotate the core shaft 34, the rotational force is sequentially applied to the universal joint 37 and the bevel gear mechanism 3.
1. The holding plate 27 is transmitted to the screw shaft 28.
The distance between the left and right probes 2a and 2b can be adjusted through the movement of the probe. Therefore, in FIG. 3, when the condition of the welded portion is different, such as when shifting from the inspection of the upright butt welded portion 16 to the inspection of the downward butt welded portion 19, the interval between the probes 2a and 2b can be simplified. This is advantageous because it can be adjusted by simple operations. The spring 26 interposed between the probes 2a and 2b and the upper bracket 23 has the same function as the spring 11 shown in FIG. 2b can be secured.
【００２５】なお、図２で示したスプリング１１及び図
５で示したスプリング２６は必要不可欠なものではない
こと、又、図４及び図５に示したアーム３６の外管３５
は、芯軸３４の回転操作を楽にするためのものである
が、芯軸３４のみをアームとして構成してもよいこと、
その他本発明の要旨を逸脱しない範囲内において種々変
更を加え得ることは勿論である。The spring 11 shown in FIG. 2 and the spring 26 shown in FIG. 5 are not indispensable, and the outer tube 35 of the arm 36 shown in FIGS.
Is for facilitating the rotation operation of the core shaft 34. However, only the core shaft 34 may be configured as an arm.
Of course, various changes can be made without departing from the spirit of the present invention.
【００２６】[0026]
【発明の効果】以上述べた如く、本発明の超音波探触子
走査ホルダーによれば、次の如き優れた効果を発揮す
る。 (1) 左右に所要間隔を隔てて配置した超音波送信用斜角
探触子と超音波受信用斜角探触子を、左右方向に延びる
前後の保持板に間隔調整可能に取り付け、該前後の保持
板の左右方向両端部をマグネット車輪を有する左右の支
持板に支持させてホルダー本体を構成し、且つ上記前後
の保持板の中央部間に固定板を設けて、該固定板にアー
ムを回動自在に取り付けた構成としてあるので、２つ探
触子を保持するホルダー本体とアームとがＴ字型とな
り、したがって、高い位置の立ち向き突合せ溶接部や下
向き突合せ溶接部の検査に、足場の架設や大掛かりな段
取りが不要となって楽な姿勢で作業を行うことができ、
補助作業員を要することなく高能率且つ安価に検査作業
を実施することができる。 (2) 左右に所要間隔を隔てて配置した超音波送信用斜角
探触子と超音波受信用斜角探触子を、左右に対峙させた
保持板に保持させ、中間部にベベルギヤを介在させて左
右方向に延びるスクリュー軸と左右方向に延びるガイド
ロッドを、上記左右の保持板の前後部に貫通配置して、
該スクリュー軸とガイドロッドの左右方向両端部を、マ
グネット車輪を有する左右の支持板に支持させてホルダ
ー本体を構成し、且つ上記スクリュー軸とガイドロッド
の中間部間に架け渡したベベルギヤ機構のガイドケーシ
ング上に、ベベルギヤ機構の入力軸を突出させて、該入
力軸に、ユニバーサルジョイントを介してアームを取り
付けた構成とすることにより、手元でアームを回転させ
ると、順次その回転をスクリュー軸まで伝えて保持板の
移動を介し探触子の間隔を調整できるので、取り扱いが
より楽になる。 (3) 探触子を下方へ押し付け付勢するためのスプリング
を組み付けた構成とすることにより、検査対象面への探
触子の接触性を確保することができる。 (4) ユニバーサルジョイントに連結するアームを、芯軸
と外管とからなる二重構造として、芯軸の先端をユニバ
ーサルジョイントに連結し、芯軸の後端につまみを設け
た構成とすることによって、探触子の間隔調整操作をよ
り円滑に行うことができる。As described above, according to the ultrasonic probe scanning holder of the present invention, the following excellent effects are exhibited. (1) The ultrasonic transmission bevel probe and the ultrasonic reception bevel probe, which are arranged at a required interval on the left and right, are attached to the front and rear holding plates extending in the left and right direction so that the distance can be adjusted. The left and right ends of the holding plate are supported by left and right support plates having magnet wheels to form a holder body, and a fixing plate is provided between the center portions of the front and rear holding plates, and an arm is provided on the fixing plate. Since it is configured to be rotatable, the holder body and the arm that hold the two probes are T-shaped, so that the scaffold can be used for inspection of a butt weld or a butt weld at a high position. It is possible to work in a comfortable posture without the need for erection and large-scale setup,
Inspection work can be performed efficiently and inexpensively without the need for an auxiliary worker. (2) The ultrasonic transmission bevel probe and the ultrasonic reception bevel probe, which are arranged on the left and right at a required interval, are held by holding plates facing left and right, and a bevel gear is interposed in the middle. The screw shaft extending in the left and right direction and the guide rod extending in the left and right direction are arranged through the front and rear portions of the left and right holding plates,
The left and right ends of the screw shaft and the guide rod are supported by left and right support plates having magnet wheels to form a holder body, and a guide of a bevel gear mechanism bridged between the screw shaft and the intermediate portion of the guide rod. By making the input shaft of the bevel gear mechanism protrude on the casing and attaching the arm to the input shaft via a universal joint, when the arm is rotated at hand, the rotation is sequentially transmitted to the screw shaft Since the distance between the probes can be adjusted by moving the holding plate, the handling becomes easier. (3) By adopting a structure in which a spring for pressing and urging the probe downward is assembled, it is possible to ensure the contact property of the probe to the inspection target surface. (4) By making the arm connected to the universal joint a double structure consisting of a core shaft and an outer tube, connecting the tip of the core shaft to the universal joint and providing a knob at the rear end of the core shaft In addition, the operation of adjusting the distance between the probes can be performed more smoothly.
【図１】本発明の超音波探触子走査ホルダーの実施の一
形態を示す概要図である。FIG. 1 is a schematic view showing an embodiment of an ultrasonic probe scanning holder according to the present invention.
【図２】図１のＡ部の詳細を示す一部切断正面図であ
る。FIG. 2 is a partially cut front view showing details of a portion A in FIG. 1;
【図３】使用状態の一例を示す概略図である。FIG. 3 is a schematic diagram showing an example of a use state.
【図４】本発明の他の実施の形態を示す概略平面図であ
る。FIG. 4 is a schematic plan view showing another embodiment of the present invention.
【図５】図４のＢ−Ｂ方向矢視図である。FIG. 5 is a view taken in the direction of arrows BB in FIG. 4;
１、１′ ホルダー本体 ２ａ 超音波送信用斜角探触子 ２ｂ 超音波受信用斜角探触子 ４ 保持板 ６ マグネット車輪 ７ 支持板 １１ スプリング １２ 固定板 １３ アーム ２６ スプリング ２７ 保持板 ２８ スクリュー軸 ３１ ベベルギヤ機構 ３３ 入力軸 ３４ 芯軸 ３５ 外管 ３６ アーム ３７ ユニバーサルジョイント ３８ つまみ ３９ ガイドロッド DESCRIPTION OF SYMBOLS 1, 1 'Holder main body 2a Oblique probe for ultrasonic transmission 2b Oblique probe for ultrasonic reception 4 Holding plate 6 Magnet wheel 7 Support plate 11 Spring 12 Fixing plate 13 Arm 26 Spring 27 Holding plate 28 Screw shaft 31 bevel gear mechanism 33 input shaft 34 core shaft 35 outer tube 36 arm 37 universal joint 38 knob 39 guide rod
Claims (4)
送信用斜角探触子と超音波受信用斜角探触子を、左右方
向に延びる前後の保持板に間隔調整可能に取り付け、該
前後の保持板の左右方向両端部をマグネット車輪を有す
る左右の支持板に支持させてホルダー本体を構成し、且
つ上記前後の保持板の中央部間に固定板を設けて、該固
定板にアームを回動自在に取り付けた構成を有すること
を特徴とする超音波探触子走査ホルダー。1. An ultrasonic transmission oblique probe and an ultrasonic reception oblique probe which are arranged at required intervals on the left and right sides are attached to front and rear holding plates extending in the left and right direction so as to be adjustable in distance, The left and right support ends of the front and rear holding plates are supported by left and right support plates having magnet wheels to form a holder body, and a fixing plate is provided between the center portions of the front and rear holding plates, and the fixing plate is An ultrasonic probe scanning holder having a structure in which an arm is rotatably mounted.
送信用斜角探触子と超音波受信用斜角探触子を、左右に
対峙させた保持板に保持させ、中間部にベベルギヤを介
在させて左右方向に延びるスクリュー軸と左右方向に延
びるガイドロッドを、上記左右の保持板の前後部に貫通
配置して、該スクリュー軸とガイドロッドの左右方向両
端部を、マグネット車輪を有する左右の支持板に支持さ
せてホルダー本体を構成し、且つ上記スクリュー軸とガ
イドロッドの中間部間に架け渡したベベルギヤ機構のガ
イドケーシング上に、ベベルギヤ機構の入力軸を突出さ
せて、該入力軸に、ユニバーサルジョイントを介してア
ームを取り付けた構成を有することを特徴とする超音波
探触子走査ホルダー。2. A bevel gear for ultrasonic transmission and an oblique probe for ultrasonic reception, which are arranged at a required interval on the left and right, are held by holding plates facing left and right. A screw shaft extending in the left-right direction and a guide rod extending in the left-right direction are disposed through the front and rear portions of the left and right holding plates, and both ends of the screw shaft and the guide rod in the left-right direction have magnet wheels. The input shaft of the bevel gear mechanism is projected on the guide casing of the bevel gear mechanism which is supported by the left and right support plates to form a holder main body, and is bridged between the screw shaft and the guide rod. An ultrasonic probe scanning holder characterized by having an arm attached via a universal joint.
スプリングを組み付けた請求項１又は２記載の超音波探
触子走査ホルダー。3. The ultrasonic probe scanning holder according to claim 1, further comprising a spring for pressing and urging the probe downward.
ムを、芯軸と外管とからなる二重構造として、芯軸の先
端をユニバーサルジョイントに連結し、芯軸の後端につ
まみを設けた請求項２記載の超音波探触子走査ホルダ
ー。4. The arm connected to the universal joint has a double structure consisting of a core shaft and an outer tube, the leading end of the core shaft is connected to the universal joint, and a knob is provided at the rear end of the core shaft. Ultrasonic probe scanning holder as described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9322002A JPH11142379A (en) | 1997-11-10 | 1997-11-10 | Ultrasonic probe scan holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9322002A JPH11142379A (en) | 1997-11-10 | 1997-11-10 | Ultrasonic probe scan holder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11142379A true JPH11142379A (en) | 1999-05-28 |
Family
ID=18138833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9322002A Pending JPH11142379A (en) | 1997-11-10 | 1997-11-10 | Ultrasonic probe scan holder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11142379A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002048770A (en) * | 2000-07-31 | 2002-02-15 | Osaka Gas Co Ltd | Ultrasonic inspection device |
| JP2007178197A (en) * | 2005-12-27 | 2007-07-12 | Kawada Industries Inc | Tool for probe of ultrasonic flaw detector |
| KR100859772B1 (en) * | 2006-12-21 | 2008-09-24 | 한국표준과학연구원 | a ultrasonics wave beam indicator for ultrasonic flaw detector and method of test condition setting using the indicator |
| JP2012225746A (en) * | 2011-04-19 | 2012-11-15 | Ihi Corp | Ultrasonic flaw detection method and ultrasonic flaw detection apparatus |
| JP2013142697A (en) * | 2012-01-09 | 2013-07-22 | Airbus Operations Ltd | Tool and method for operating transducer assembly |
| JP2014130114A (en) * | 2012-12-28 | 2014-07-10 | Mitsubishi Heavy Ind Ltd | Flaw detection device and flaw detection method |
| CN103926328A (en) * | 2014-03-18 | 2014-07-16 | 中铁山桥集团有限公司 | Ultrasonic wave detection scanning apparatus capable of achieving stable coupling |
| CN105181796A (en) * | 2015-07-17 | 2015-12-23 | 河海大学 | Probe combination apparatus for testing strength of concrete |
| JP2017078673A (en) * | 2015-10-22 | 2017-04-27 | 株式会社東京エネシス | Probe holding jig |
| CN112067694A (en) * | 2020-09-22 | 2020-12-11 | 江苏方天电力技术有限公司 | Bolt ultrasonic detection scanning device |
| CN114166116A (en) * | 2021-11-04 | 2022-03-11 | 武汉武船重型装备工程有限责任公司 | Light self-adaptive laser head for scanning component |
| JP2022044076A (en) * | 2020-09-07 | 2022-03-17 | 株式会社システック | Hammering inspection rod |
| KR102381398B1 (en) * | 2021-10-07 | 2022-04-01 | 주식회사 셀파코퍼레이션 | Crack measuring device for safety diagnosis of facilities that can easily measure crack information |
-
1997
- 1997-11-10 JP JP9322002A patent/JPH11142379A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002048770A (en) * | 2000-07-31 | 2002-02-15 | Osaka Gas Co Ltd | Ultrasonic inspection device |
| JP2007178197A (en) * | 2005-12-27 | 2007-07-12 | Kawada Industries Inc | Tool for probe of ultrasonic flaw detector |
| KR100859772B1 (en) * | 2006-12-21 | 2008-09-24 | 한국표준과학연구원 | a ultrasonics wave beam indicator for ultrasonic flaw detector and method of test condition setting using the indicator |
| JP2012225746A (en) * | 2011-04-19 | 2012-11-15 | Ihi Corp | Ultrasonic flaw detection method and ultrasonic flaw detection apparatus |
| JP2013142697A (en) * | 2012-01-09 | 2013-07-22 | Airbus Operations Ltd | Tool and method for operating transducer assembly |
| JP2014130114A (en) * | 2012-12-28 | 2014-07-10 | Mitsubishi Heavy Ind Ltd | Flaw detection device and flaw detection method |
| CN103926328A (en) * | 2014-03-18 | 2014-07-16 | 中铁山桥集团有限公司 | Ultrasonic wave detection scanning apparatus capable of achieving stable coupling |
| CN105181796A (en) * | 2015-07-17 | 2015-12-23 | 河海大学 | Probe combination apparatus for testing strength of concrete |
| JP2017078673A (en) * | 2015-10-22 | 2017-04-27 | 株式会社東京エネシス | Probe holding jig |
| JP2022044076A (en) * | 2020-09-07 | 2022-03-17 | 株式会社システック | Hammering inspection rod |
| CN112067694A (en) * | 2020-09-22 | 2020-12-11 | 江苏方天电力技术有限公司 | Bolt ultrasonic detection scanning device |
| KR102381398B1 (en) * | 2021-10-07 | 2022-04-01 | 주식회사 셀파코퍼레이션 | Crack measuring device for safety diagnosis of facilities that can easily measure crack information |
| CN114166116A (en) * | 2021-11-04 | 2022-03-11 | 武汉武船重型装备工程有限责任公司 | Light self-adaptive laser head for scanning component |
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