JP2009036785A - Holder - Google Patents

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JP2009036785A
JP2009036785A JP2008296261A JP2008296261A JP2009036785A JP 2009036785 A JP2009036785 A JP 2009036785A JP 2008296261 A JP2008296261 A JP 2008296261A JP 2008296261 A JP2008296261 A JP 2008296261A JP 2009036785 A JP2009036785 A JP 2009036785A
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test piece
gripping
piece
wedge
test
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Tadaoki Takii
忠興 瀧井
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Shimadzu Corp
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Shimadzu Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a holder capable of easily and reliably holding a test piece in a tensile testing machine, a fatigue testing machine, or the like. <P>SOLUTION: When a wedge gear tooth 18 is fitted to a cavity 16 for wedge gear teeth in a gripping piece 12, the test piece 11 is gripped and is clamped by a bolt 13, and the test piece 11 is pulled in the direction of the test piece, the wedge gear tooth 18 is also subjected to force in the direction of the test piece. However, the direction of the force becomes that for pressing the test piece 11 because of interference by an inclined surface in the depth direction of the cavity 16 for wedge gear teeth provided in the gripping piece 12, and is converted to pressure for further clamping the test piece 11, thus keeping clamping force by force for pulling the test piece 11 by the wedge gear teeth 18 in a wedge shape even if the bolt 13 becomes loose. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、製品開発や品質管理を目的として様々な材料の強度特性や信頼性を評価するために用いられる材料試験機の分野に属する引張試験機及び疲労試験機の構成部品である試験片を掴む把持具に関する。   The present invention relates to a test piece which is a component part of a tensile tester and a fatigue tester belonging to the field of a material tester used for evaluating strength properties and reliability of various materials for the purpose of product development and quality control. The present invention relates to a grasping tool.

現在、世界中で多種多様な材料が開発され人類の益に供しているところであるが、最近では特に環境問題による材料の吟味や電子機器・輸送機器などの信頼性や安全性の向上のために、高性能で信頼性の高い材料や製品の研究開発が継続的に行われてきている。そのため、これらの材料や製品の強度特性や信頼性を評価する手法も多様であり、例えば、一般的な材料試験では、静的な試験には引張試験、圧縮試験、曲げ試験、引き裂き試験、せん断試験などがあり、また、動的な試験では、疲労試験、衝撃試験などがあり、ゴム、プラスチック、金属、繊維等の素材から、食品、電子部品、携帯電話、梱包箱などの実物まで、あらゆる物が試験の対象となる。また一方、試験方法は、JIS、ISO、ASTMなどで数多く規格化され現在に至っている。   At present, a wide variety of materials have been developed around the world and are being used for the benefit of humankind. Recently, in order to improve the reliability and safety of electronic devices and transportation equipment, especially due to environmental issues. Research and development of high-performance and reliable materials and products have been continuously conducted. For this reason, there are various methods for evaluating the strength characteristics and reliability of these materials and products. For example, in general material tests, static tests include tensile tests, compression tests, bending tests, tear tests, shear tests. There are various tests such as fatigue tests, impact tests, etc., ranging from materials such as rubber, plastic, metal, and textiles to actual products such as food, electronic parts, mobile phones, and packing boxes. Things are the subject of the test. On the other hand, many test methods have been standardized by JIS, ISO, ASTM, etc., and have reached the present.

それらの中でも特に材料の引張強度を測定する引張試験は材料の特性を知る基本データとして重要であり、またそれに繰返し引張力を付与しその材料の耐久性を評価する疲労試験もまた重要な試験項目のひとつとなっている。引張試験や疲労試験では、試験する材料の試験片を作るかまたはその物の形状のまま試験をするのであるが、引張力を負荷するためその材料を把持する機構すなわち把持具を装備している。   Among them, the tensile test that measures the tensile strength of the material is particularly important as basic data for knowing the properties of the material, and the fatigue test that gives repeated tensile force to evaluate the durability of the material is also an important test item. It has become one of the. In the tensile test and fatigue test, a test piece of a material to be tested is made or a test is performed in the shape of the object, but a mechanism for holding the material to load a tensile force, that is, a gripping tool is provided. .

図５に従来の把持具の横断面及び図６にその平面（ブロックを除く）を示す。１は試験される試験片、２は試験片１を挟持する把持片であり、試験片１は２枚の把持片２によって挟みつけられ把持される。２枚の把持片２は試験片１を挟んだ後に３で示されるボルトによって締め付けられ試験片１を把持することができるのであるが、下の把持片２にはボルト３に対応する位置にネジ穴が設けられ、また上の把持片２にはボルト３に対応する位置に孔が設けられており、ボルト３を把持片２の孔及びネジ穴に差込み、締め付ける機構になっている。また、更に把持片２には４で示されるピンを貫通させる孔が設けられている。   FIG. 5 shows a cross section of a conventional gripping tool, and FIG. 6 shows its plane (excluding blocks). Reference numeral 1 denotes a test piece to be tested, 2 denotes a gripping piece for holding the test piece 1, and the test piece 1 is sandwiched and gripped by two gripping pieces 2. The two gripping pieces 2 can be clamped by a bolt indicated by 3 after the test piece 1 is sandwiched between them, and the lower gripping piece 2 can be screwed in a position corresponding to the bolt 3. A hole is provided, and the upper gripping piece 2 is provided with a hole at a position corresponding to the bolt 3, and the bolt 3 is inserted into the hole and screw hole of the gripping piece 2 and tightened. Further, the gripping piece 2 is provided with a hole through which a pin indicated by 4 is passed.

５はブロックであり、引張試験機本体に連結され、矢印で示される方向の力を引張試験機から与えられる。ブロック５には把持片２と同様にピン４を貫通させる孔が設けられており、把持片２はピン４を介してブロック５と連結されるので、結果的に試験片１に矢印方向の引張力を与えることができるのであるが、ピン４は、把持片２の孔に貫通しているだけなのでブロック５と把持片２は把持片２の平面に対して回動可能であり、この平面内におけるピン４を中心軸とした回転方向の負荷が試験片１に懸かることを避けることができる。   Reference numeral 5 denotes a block which is connected to the tensile tester main body and is given a force in a direction indicated by an arrow from the tensile tester. Similarly to the grip piece 2, the block 5 is provided with a hole through which the pin 4 passes. The grip piece 2 is connected to the block 5 via the pin 4, so that the test piece 1 is pulled in the direction of the arrow. Although the force can be applied, the pin 4 only passes through the hole of the gripping piece 2, so that the block 5 and the gripping piece 2 can rotate with respect to the plane of the gripping piece 2. It is possible to avoid a load in the rotational direction centering on the pin 4 in the test piece 1 from being applied to the test piece 1.

なお、ブロック５に連結された試験機本体は図示を省略している。また、ピン４をブロック５に留めるワッパ等は図示を省略している。また、試験片１の一方の端部から先は図示を省略しているが、試験片１のもう一方の端部には同様に把持片２やブロック５等の把持具が設けられており、試験片１は両方向から把持されている。また、把持片２には試験片１を挟持したとき試験片１と直接接触する面付近に歯が切ってあり摩擦力を高めることにより試験片１の滑りを抑制しているのであるがその詳細は図示を省略している。また、理解を容易にするために、図６の平面図にはブロック５は表示せず、試験片１及び把持片２及びボルト３ならびにピン４のみを表示している。   The tester main body connected to the block 5 is not shown. Further, the illustration of a wapper or the like for fastening the pin 4 to the block 5 is omitted. Although the illustration from the one end of the test piece 1 is omitted, the other end of the test piece 1 is similarly provided with gripping tools such as the gripping piece 2 and the block 5, The test piece 1 is gripped from both directions. Further, when the test piece 1 is sandwiched between the gripping pieces 2, teeth are cut in the vicinity of the surface that directly contacts the test piece 1, and the frictional force is increased to suppress the sliding of the test piece 1. Is not shown. In order to facilitate understanding, the block 5 is not displayed in the plan view of FIG. 6, and only the test piece 1, the gripping piece 2, the bolt 3, and the pin 4 are displayed.

引張試験機への試験片１のセットの手順としては、先ず、試験片１の一方の端部を２枚の把持片２に挟み４本のボルト３にて締め付ける。次に試験片１のもう一方の端部を、別の２枚の把持片２に挟み同様に別の４本のボルト３にて締め付ける。次に、上記の試験片１を挟んだ２枚の把持片２とブロック５をピン４によって連結させる。もう一方の端部も同様に把持片２とブロック５をピン４によって連結させる。最も基本的な引張試験は、引張試験機本体から試験片１に与えられる矢印方向の引張力と試験片１の伸びた長さを測定し試験片１の特性を知るものである。
特開平０６−００３２３４号公報 As a procedure for setting the test piece 1 to the tensile tester, first, one end of the test piece 1 is sandwiched between two gripping pieces 2 and tightened with four bolts 3. Next, the other end of the test piece 1 is sandwiched between two other gripping pieces 2 and similarly tightened with another four bolts 3. Next, the two gripping pieces 2 sandwiching the test piece 1 and the block 5 are connected by pins 4. Similarly, at the other end, the grip piece 2 and the block 5 are connected by the pin 4. The most basic tensile test is to measure the tensile force in the direction of the arrow applied to the test piece 1 from the tensile tester main body and the length of the test piece 1 to measure the characteristics of the test piece 1.
JP-A-06-003234

従来技術のように、２枚の把持片２の間に試験片１を挟みボルト３で締め付ける構成では、締め付け時に、特に試験片１の把持できる部分（つかみ代）が小さい場合などは、４本のボルト３のうちブロック５に近い方の２個のボルト３を、ブロック５に遠い方の２個のボルト３に較べて強く締めすぎると２枚の把持片２が試験片１の方向に僅かに開いてしまう。そのため試験片１を強固に把持することができず、最悪の場合は外れてしまう場合がある。これはまた、試験片１が高引張強度を持つ材料の場合などで強い引張力を与えなければならない場合は問題になっている。   In the configuration in which the test piece 1 is sandwiched between two gripping pieces 2 and fastened with bolts 3 as in the prior art, there are four pieces when tightening, especially when the portion (grip allowance) that the test piece 1 can grip is small. If the two bolts 3 closer to the block 5 out of the bolts 3 are tightened too much than the two bolts 3 farther from the block 5, the two gripping pieces 2 are slightly in the direction of the test piece 1 Will open. Therefore, the test piece 1 cannot be firmly held, and in the worst case, it may come off. This is also a problem when the test piece 1 is made of a material having a high tensile strength, and a strong tensile force must be applied.

また、試験片１のつかみ代を均等な圧力で締め付けるのは４個のボルト３を均等に締め付けることが必要で、そのため４個のボルト３を順番に徐々に少しずつ締め付けるため、時間も手間もかかっていた。これは、柔らかい材料からなる試験片や割れやすい材料からなる試験片の場合も問題になっている。   In addition, tightening the gripping allowance of the test piece 1 with equal pressure requires that the four bolts 3 be tightened evenly, so that the four bolts 3 are tightened little by little in order, so both time and effort are required. It was hanging. This is also a problem in the case of a test piece made of a soft material or a test piece made of a material that is easily broken.

本発明が提供する材料試験等に使用される把持具は、上記課題を解決するために、試験片の一方の端部を挟み付けて把持する２枚の把持片と、この両把持片の他端側間に介設され支点を構成するスペーサと、前記両把持片の試験片を把持する把持端側と前記スペーサとの間に２枚の把持片を互いに引き寄せ締め付ける締付機構とを備えたものである。従って、２枚の把持片間の隙間が試験片の厚みと同じ隙間になるように、スペーサを試験片と対面方向側に設け、締め付ける時の支点となるように構成できる。従って、スペーサが支点となるためつかみ代の小さい試験片でも複数個のボルトで確実に締め付けできる。また、支点が安定するため締め付け作業が容易になる。   In order to solve the above problems, a gripping tool used in a material test or the like provided by the present invention includes two gripping pieces that sandwich and grip one end of a test piece, and other gripping pieces. A spacer interposed between the end sides and constituting a fulcrum; and a clamping mechanism for pulling and clamping the two gripping pieces together between the gripping end side for gripping the test piece of both gripping pieces and the spacer. Is. Accordingly, the spacer can be provided on the side facing the test piece so that the gap between the two gripping pieces is the same as the thickness of the test piece, and can be configured as a fulcrum when tightening. Therefore, since the spacer serves as a fulcrum, even a test piece with a small gripping allowance can be securely tightened with a plurality of bolts. In addition, since the fulcrum is stabilized, the tightening operation is facilitated.

また、本発明が提供する把持具は、上記課題を解決するために、従来技術である把持片の歯の部分を別の楔形の歯の付いた部品で構成した。従って、歯が消耗してもその部分だけを交換できる。また、試験片に合わせて適した歯が使える。また、楔形方式を採用しているので試験片に負荷を与えるとそれだけ挟持力が増大し、疲労試験時の繰り返しによるボルト等の緩みに拘わらず試験片の滑りが生じない。   Further, in order to solve the above-described problems, the gripping tool provided by the present invention is configured such that the tooth portion of the gripping piece, which is a conventional technology, is a part having another wedge-shaped tooth. Therefore, even if the tooth is consumed, only that portion can be replaced. Also, teeth suitable for the test piece can be used. In addition, since the wedge-shaped method is adopted, when a load is applied to the test piece, the clamping force increases accordingly, and the test piece does not slip regardless of loosening of the bolt or the like due to repeated fatigue tests.

また、本発明が提供する把持具は、上記課題を解決するために、把持片にはスペーサが嵌合される断面が円弧状の溝が設けられている。従って、スペーサの位置が安定し、構成簡略にして締め付け作業が容易になる。   Further, in the gripping tool provided by the present invention, in order to solve the above-described problem, the gripping piece is provided with a groove having an arcuate cross section in which a spacer is fitted. Therefore, the position of the spacer is stabilized, the structure is simplified, and the tightening operation is facilitated.

本発明の引張試験機及び疲労試験機の構成部品である試験片を把持する把持具は、小形で高張度な試験片でも大きなボルトでしっかりと締め付けることができるため、試験片の滑りを生じにくい。また、歯の部分を楔形の方式で構成したので、引張力が負荷されるほど自動的に締め付け力が増す。よって、高強度の材料で且つ小さな試験片しかなく従来では把持が困難であった試験片でも把持できる。また、順番に徐々に締め付ける必要が無いため、ボルトを締める作業を効率化できる。また、歯面が消耗した場合でも歯の部分だけ交換すればよいため経済的である。   The gripping tool for gripping the test piece, which is a component of the tensile tester and fatigue tester of the present invention, can be securely tightened with a large bolt even with a small and high-tensile test piece, so that the test piece does not easily slide. . In addition, since the tooth portion is configured in a wedge shape, the tightening force automatically increases as the tensile force is applied. Therefore, it is possible to grip even a test piece which is a high-strength material and has only a small test piece, which has been difficult to hold in the past. Moreover, since there is no need to gradually tighten in order, the work of tightening the bolts can be made efficient. Further, even if the tooth surface is consumed, it is economical because only the tooth portion needs to be replaced.

本発明は、２枚の把持片間の隙間が試験片の厚みと同じ隙間になるように、スペーサを試験片と対面方向側に設けるが、スペーサとして丸棒を使い把持片にはその丸棒が嵌る溝を設けるのが最も実用的で最良の形態である。
また、把持片の歯の部分を別の楔形の部品で構成するが、把持片に楔形の部品が嵌め込める切り欠きを設けるのが最も実用的であり、最良の形態である。 In the present invention, a spacer is provided on the facing side of the test piece so that the gap between the two gripping pieces is the same as the thickness of the test piece. It is the most practical and best form to provide a groove for fitting.
Further, the tooth portion of the gripping piece is composed of another wedge-shaped part, but it is most practical and the best mode to provide a notch into which the wedge-shaped part can be fitted in the gripping piece.

図１に本発明の把持具の断面図、図２に、以下に１２で示される把持片の断面図及び図３にその平面図を示す。また、図４（Ａ）、（Ｂ）に本発明の構成部品であり以下に１８、１９で示される楔歯と丸棒を斜視的に示す。
１１は試験片、１２は試験片１１を挟み付ける把持片、１３は把持片１２を締め付けるボルトである。１５は試験機本体と連結したブロック、１４はブロック１５と把持片１２を連結するためのピンである。把持片１２は本発明の構成要件であり窪み１６と溝１７の加工がなされている。 FIG. 1 is a cross-sectional view of the gripping tool of the present invention, FIG. 2 is a cross-sectional view of a gripping piece indicated by 12 below, and FIG. 3 is a plan view thereof. 4 (A) and 4 (B) are perspective views of wedge teeth and round bars, which are constituent parts of the present invention and are denoted by 18 and 19 below.
Reference numeral 11 denotes a test piece, 12 denotes a gripping piece for sandwiching the test piece 11, and 13 denotes a bolt for fastening the gripping piece 12. Reference numeral 15 denotes a block connected to the tester main body, and reference numeral 14 denotes a pin for connecting the block 15 and the gripping piece 12. The gripping piece 12 is a constituent element of the present invention, and the recess 16 and the groove 17 are processed.

１８は本発明の構成部品のひとつであり楔形の部品である楔歯、１９は同じく本発明の構成部品のひとつであるスペーサとしての丸棒である。また、１７は把持片１２に切削加工されたスペーサ用の断面が円弧状の形状をした溝を示しており、１６は同じく切削加工された楔歯用の窪みである。
なお、従来技術の項で記載したと同様に、ブロック１５に連結された試験機本体は図示を省略している。また、ピン１４をブロック１５に留めるワッパ等は図示を省略している。また、試験片１１の一方の端部から先は図示を省略しているが、試験片１１のもう一方の端部には同様に把持片１２やブロック１５等の把持具が設けられており、試験片１１は両方向から把持される。 18 is a wedge tooth which is one of the components of the present invention and is a wedge-shaped component, and 19 is a round bar as a spacer which is also one of the components of the present invention. Reference numeral 17 denotes a groove whose cross section for a spacer cut into the gripping piece 12 has an arcuate shape, and 16 is a recess for a wedge tooth which is also cut.
Note that, as described in the section of the prior art, the tester main body connected to the block 15 is not shown. Further, the illustration of a wapper or the like for fastening the pin 14 to the block 15 is omitted. Although the illustration from the one end of the test piece 11 is omitted, the other end of the test piece 11 is similarly provided with a gripping tool such as a gripping piece 12 or a block 15. The test piece 11 is gripped from both directions.

スペーサ１９には丸棒を用い、取り付けた時に２枚の把持片１２の間隔が試験片１１の厚みと等しくなるよう丸棒の径を選択する。また、スペーサ１９用の溝１７の位置は、４個のボルト１３の位置より試験片１１の反対側の位置に設ける。こうすることによって、試験片１１を挟んでボルト１３を締めたときにスペーサ１９が支点となり、強くボルト１３を締め付けたとしても把持片１２が傾動し、あるいは開口することなく試験片１１を把持できる。   A round bar is used as the spacer 19, and the diameter of the round bar is selected so that the distance between the two gripping pieces 12 becomes equal to the thickness of the test piece 11 when the spacer 19 is attached. The position of the groove 17 for the spacer 19 is provided at a position opposite to the test piece 11 from the position of the four bolts 13. By doing so, the spacer 19 becomes a fulcrum when the bolt 13 is tightened across the test piece 11, and even if the bolt 13 is tightened strongly, the gripping piece 12 can be gripped without tilting or opening. .

一方、把持片には楔形形状の楔歯１８が嵌め込まれる楔歯用の窪み１６が設けられており、この窪み１６の深さ方向の傾斜は楔歯１８の傾き面の傾斜角度と同等であり、試験片１１を挟むときには、楔歯１８はこの窪み１６に嵌め込まれて使用される。楔歯１８は、楔形であり、試験片１１に接する面には試験片１１を把持したときに摩擦係数を上げるため表面にギザギザの加工（歯と称する）が切られている。   On the other hand, the gripping piece is provided with a wedge-shaped recess 16 into which a wedge-shaped wedge tooth 18 is fitted, and the inclination of the recess 16 in the depth direction is equal to the inclination angle of the inclined surface of the wedge tooth 18. When the test piece 11 is sandwiched, the wedge teeth 18 are fitted into the recess 16 and used. The wedge tooth 18 has a wedge shape, and a surface that is in contact with the test piece 11 is knurled on the surface (called a tooth) in order to increase the friction coefficient when the test piece 11 is gripped.

図１のように楔歯１８が把持片１２の楔歯用の窪み１６に嵌り、且つ、試験片１１を把持し、ボルト１３で締めたとして、試験片１１を試験片方向に引張ったとすると摩擦によって楔歯１８もまた試験片方向に力を受けるが、把持片１２に設けられた楔歯用の窪み１６の深さ方向の傾き面に邪魔されてその力の方向は試験片１１を押し付ける方向の力となり、試験片１１を更に締め付ける圧力に変換されることとなる。よって、楔形の形状を持つ楔歯１８により、仮にボルト１３が緩んだ場合でも試験片１１を引張った力によって締め付け力を保つことができる。   As shown in FIG. 1, assuming that the wedge tooth 18 fits in the wedge tooth recess 16 of the gripping piece 12, and the test piece 11 is gripped and tightened with the bolt 13, the test piece 11 is pulled in the direction of the test piece. The wedge tooth 18 also receives a force in the direction of the test piece, but the direction of the force is pressed against the test piece 11 by being obstructed by the inclined surface in the depth direction of the wedge-shaped depression 16 provided in the gripping piece 12. Therefore, the pressure is converted into a pressure for further tightening the test piece 11. Therefore, the wedge teeth 18 having a wedge shape can maintain the tightening force by the force of pulling the test piece 11 even if the bolt 13 is loosened.

試験片１１の厚さが異なるときには、スペーサ１９の径又は楔歯１８の厚さを試験片１１に対応するものを使用する。また楔歯１８と試験片１１の間にシム（薄板）を挟むことでもよい。
また、実施例としてスペーサ１９に丸棒を用いたが、三角柱や四角柱などの多角形でもよい。このときスペーサの入る溝の断面形状もスペーサの形状に合わせる。
また、両把持片１２はボルト３による締付で厳密には曲折され、ボルト３に曲げトルクが作用し好ましくないので、ボルト貫通方式としナット２１と座金２０を曲面を有する形にして把持片１２に接合させる図７のような変形例とすることもできる。 When the thickness of the test piece 11 is different, the one corresponding to the diameter of the spacer 19 or the thickness of the wedge tooth 18 is used. A shim (thin plate) may be sandwiched between the wedge teeth 18 and the test piece 11.
Moreover, although the round bar was used for the spacer 19 as an Example, polygons, such as a triangular prism and a quadratic prism, may be sufficient. At this time, the cross-sectional shape of the groove in which the spacer enters is also matched to the shape of the spacer.
Further, both the gripping pieces 12 are strictly bent by tightening with the bolt 3, and a bending torque acts on the bolt 3, which is not preferable. Therefore, the nut 21 and the washer 20 are formed in a shape having a curved surface by using a bolt penetration method. It is also possible to adopt a modification as shown in FIG.

本発明は、製品開発や品質管理を目的として様々な材料の強度特性や信頼性を評価するために用いられる材料試験機の分類に属する引張試験機及び疲労試験機の構成部品である試験片を掴む把持具などに利用可能である。   The present invention relates to a test piece which is a component of a tensile tester and a fatigue tester belonging to the class of material testers used to evaluate the strength characteristics and reliability of various materials for the purpose of product development and quality control. It can be used as a gripping tool for gripping.

本発明の把持具の断面を示す図である。It is a figure which shows the cross section of the holding tool of this invention. 本発明の把持片の断面を示す図である。It is a figure which shows the cross section of the holding piece of this invention. 本発明の把持片の平面を示す図である。It is a figure which shows the plane of the holding piece of this invention. 本発明の楔歯とスペーサを斜視的に示す図である。It is a figure which shows the wedge tooth and spacer of this invention perspectively. 従来における把持具の断面を示す図である。It is a figure which shows the cross section of the conventional holding tool. 従来における把持具の平面を示す図である。It is a figure which shows the plane of the conventional holding tool. 変形実施における把持具の断面を示す図である。It is a figure which shows the cross section of the holding tool in deformation | transformation implementation.

符号の説明Explanation of symbols

１ 試験片
２ 把持片
３ ボルト
４ ピン
５ ブロック
１１ 試験片
１２ 把持片
１３ ボルト
１４ ピン
１５ ブロック
１６ 窪み
１７ 溝
１８ 楔歯
１９ スペーサ
２０ 座金
２１ ナット DESCRIPTION OF SYMBOLS 1 Test piece 2 Grasp piece 3 Bolt 4 Pin 5 Block 11 Test piece 12 Grasp piece 13 Bolt 14 Pin 15 Block 16 Depression 17 Groove 18 Wedge 19 Spacer 20 Washer 21 Nut

Claims (3)

材料試験に用いられる試験片を把持する把持具であって、試験片の一方の端部を挟持する２枚の把持片と、この両把持片の他端側間に介設され支点を構成するスペーサと、前記両把持片の試験片を把持する把持端側と前記スペーサとの間に２枚の把持片を互いに引き寄せ締め付ける締付機構とを備えたことを特徴とする試験片の把持具。   A gripping tool for gripping a test piece used for a material test, which is provided between two gripping pieces that sandwich one end of the test piece and the other end side of the both gripping pieces to constitute a fulcrum. A test piece gripping tool, comprising: a spacer; a gripping end side for gripping the test pieces of both gripping pieces; and a tightening mechanism for pulling and tightening the two gripping pieces between the spacers. 試験片を挟持する把持片には、楔形の歯とその歯が嵌め込まれる窪みが設けられていることを特徴とする請求項１記載の試験片の把持具。   The test piece gripping tool according to claim 1, wherein the gripping piece for holding the test piece is provided with wedge-shaped teeth and a recess into which the teeth are fitted. 両把持片の支点位置における互いの対応面にはそれぞれ断面が円弧状の溝が形成され、この両溝に丸棒状のスペーサが嵌合されていることを特徴とする請求項１記載の試験片の把持具。   2. A test piece according to claim 1, wherein grooves corresponding to each other at the fulcrum positions of the gripping pieces are formed with grooves each having an arc-shaped cross section, and a round bar-like spacer is fitted into both grooves. Gripping tool.
JP2008296261A 2008-11-20 2008-11-20 Holder Pending JP2009036785A (en)

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JP2011196959A (en) * 2010-03-24 2011-10-06 Meidensha Corp Stationary jig of ignition key and attachable/detachable structure of the same
KR101371759B1 (en) * 2012-12-21 2014-03-07 현대자동차(주) Apparatus for testing specimen
JP2014048144A (en) * 2012-08-31 2014-03-17 Tokyo Gas Co Ltd Unit for performing evaluation test on tabular test piece
CN104007009A (en) * 2014-01-06 2014-08-27 西南交通大学 Material test fixture for clamping minute sample
CN104390851A (en) * 2014-11-11 2015-03-04 济南瑞晟机械有限公司 Coaxiality-adjustable winding type tensile fixture
CN104390854A (en) * 2014-12-11 2015-03-04 四川元泰达有色金属材料有限公司 Foamed aluminum tension detection fixture
CN105486592A (en) * 2016-01-15 2016-04-13 郑州大学 Steel fiber tensioning and clamping fixture and steel fiber tensile strength testing system
CN105806701A (en) * 2016-03-17 2016-07-27 西北工业大学 High-temperature fatigue test clamp device for pretension bolt
JP2017058230A (en) * 2015-09-16 2017-03-23 株式会社島津製作所 Gripping tool for material testing machine and material testing machine
CN109855960A (en) * 2017-11-30 2019-06-07 中国科学院金属研究所 A method of Metal Material Fatigue intensity is determined by tensile property
CN111504775A (en) * 2020-06-04 2020-08-07 西安建筑科技大学 Adjustable claw type concrete uniaxial tensile test clamp and using method thereof
CN111638125A (en) * 2020-07-10 2020-09-08 哈尔滨焊接研究院有限公司 Tensile clamp, test system and test method
CN113804542A (en) * 2021-08-30 2021-12-17 共享智能装备有限公司 Turbine tooth tensile test device

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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011196959A (en) * 2010-03-24 2011-10-06 Meidensha Corp Stationary jig of ignition key and attachable/detachable structure of the same
JP2014048144A (en) * 2012-08-31 2014-03-17 Tokyo Gas Co Ltd Unit for performing evaluation test on tabular test piece
KR101371759B1 (en) * 2012-12-21 2014-03-07 현대자동차(주) Apparatus for testing specimen
CN104007009A (en) * 2014-01-06 2014-08-27 西南交通大学 Material test fixture for clamping minute sample
CN104007009B (en) * 2014-01-06 2016-06-15 西南交通大学 A kind of testing of materials fixture for clamping tiny sample
CN104390851A (en) * 2014-11-11 2015-03-04 济南瑞晟机械有限公司 Coaxiality-adjustable winding type tensile fixture
CN104390854A (en) * 2014-12-11 2015-03-04 四川元泰达有色金属材料有限公司 Foamed aluminum tension detection fixture
JP2017058230A (en) * 2015-09-16 2017-03-23 株式会社島津製作所 Gripping tool for material testing machine and material testing machine
CN105486592B (en) * 2016-01-15 2018-02-09 郑州大学 A kind of steel fibre tensioning clamping fixture and steel fibre tensile property test system
CN105486592A (en) * 2016-01-15 2016-04-13 郑州大学 Steel fiber tensioning and clamping fixture and steel fiber tensile strength testing system
CN105806701A (en) * 2016-03-17 2016-07-27 西北工业大学 High-temperature fatigue test clamp device for pretension bolt
CN105806701B (en) * 2016-03-17 2018-06-05 西北工业大学 A kind of pretension bolt high temperature fatigue test clamp device
CN109855960A (en) * 2017-11-30 2019-06-07 中国科学院金属研究所 A method of Metal Material Fatigue intensity is determined by tensile property
CN109855960B (en) * 2017-11-30 2021-06-01 中国科学院金属研究所 Method for determining fatigue strength of metal material through tensile property
CN111504775A (en) * 2020-06-04 2020-08-07 西安建筑科技大学 Adjustable claw type concrete uniaxial tensile test clamp and using method thereof
CN111638125A (en) * 2020-07-10 2020-09-08 哈尔滨焊接研究院有限公司 Tensile clamp, test system and test method
CN113804542A (en) * 2021-08-30 2021-12-17 共享智能装备有限公司 Turbine tooth tensile test device

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