JP2011149788A - Shaft-center adjustment device of material testing machine - Google Patents

Shaft-center adjustment device of material testing machine Download PDF

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JP2011149788A
JP2011149788A JP2010010642A JP2010010642A JP2011149788A JP 2011149788 A JP2011149788 A JP 2011149788A JP 2010010642 A JP2010010642 A JP 2010010642A JP 2010010642 A JP2010010642 A JP 2010010642A JP 2011149788 A JP2011149788 A JP 2011149788A
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screw
shaft
adjusting collar
screw member
collar member
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Kojiro Toryo
宏二郎 東良
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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 shaft-center adjustment device of a material testing machine for performing shaft-center adjustment in a quick and correct way. <P>SOLUTION: The shaft-center adjustment device includes: a connecting shaft 31 for connecting a crosshead 23 and an upper gripper 11; a frame member 39 having a support portion 37, which is fixed to the connecting shaft 31 and a frame portion 36, which surrounds the connecting shaft 31; a collar member 35 for position adjustment which is fixed to the upper gripper 11; a first screw member 51, which screws together with a first screw hole formed in the collar member 35 for position adjustment; a pair of first guide members which are movably journalled to both ends of the first screw member 51, in a direction perpendicular to the shaft center of the first screw member 51; a second screw member which is journalled to a second screw hole formed in the collar member 35 for position adjustment, in a direction perpendicular to the first screw hole; and a pair of second guidance members which are movably journalled to both ends of the second screw member, in a direction perpendicular to the shaft center of the second screw member. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

この発明は、試験片を把持するつかみ具の軸芯を調整するための材料試験機の軸芯調整装置に関する。   The present invention relates to an axis adjusting device for a material testing machine for adjusting the axis of a gripping tool that holds a test piece.

このような材料試験機は、上つかみ具および下つかみ具によりその両端を把持した試験片に対して負荷を与えながら、ロードセルと変位検出器によりそのときの試験力と変位とを測定することにより、試験片の試験力−変位特性や、Ｓ−Ｎ線図を求める構成となっている。このような材料試験機においては、上つかみ具と下つかみ具との軸芯が整合していないと、正確な材料試験を実行することができない。このため、このような材料試験機においては、上つかみ具と下つかみ具との軸芯を調整するための軸芯調整装置が配設されている。   Such a material testing machine measures the test force and displacement at that time with a load cell and a displacement detector while applying a load to the test piece gripped at both ends by the upper gripper and the lower gripper. The test force-displacement characteristic of the test piece and the SN diagram are obtained. In such a material testing machine, an accurate material test cannot be executed unless the axes of the upper gripper and the lower gripper are aligned. For this reason, in such a material testing machine, an axis adjusting device for adjusting the axis of the upper gripping tool and the lower gripping tool is provided.

図７は、このような従来の軸芯調整装置１１３の概要図である。   FIG. 7 is a schematic view of such a conventional shaft center adjusting device 113.

この軸芯調整装置１１３は、クロスヘッド２３と上つかみ具１１との間に介在されるものであり、クロスヘッド２３と上つかみ具１１とを連結する連結軸１３１と、この連結軸１３１の中央部に固定された枠部材１３９と、枠部材１３９の内部で連結軸１３１の外周部に配設され、クロスヘッド２３に固定された角度調整用カラー部材１３４と、枠部材１３９の内部で連結軸１３１の外周部に配設され、上つかみ具１１に固定された位置調整用カラー部材１３５とを備える。   The shaft center adjusting device 113 is interposed between the cross head 23 and the upper gripper 11, and includes a connecting shaft 131 that connects the crosshead 23 and the upper gripper 11, and a center of the connecting shaft 131. A frame member 139 fixed to the section, an angle adjusting collar member 134 disposed on the outer periphery of the connecting shaft 131 inside the frame member 139 and fixed to the crosshead 23, and a connecting shaft inside the frame member 139. A position adjusting collar member 135 disposed on the outer periphery of 131 and fixed to the upper gripping tool 11;

連結軸１３１は、角度調整用カラー部材１３４、枠部材１３９および位置調整用カラー部材１３５を貫通するとともに、連結軸１３１の上端部は取付板１３２と螺合しており、連結軸１３１の下端部は上つかみ具１１と螺合している。また、取付板１３２は、一対のジャッキボルト１３３を介してクロスヘッド２３と連結されている。このため、一対のジャッキボルト１３３を利用して取付板１３２をクロスヘッド２３に対して上方に移動させることにより、上つかみ具１１を所定の力でクロスヘッド２３に対して締結することができる。   The connecting shaft 131 passes through the angle adjusting collar member 134, the frame member 139, and the position adjusting collar member 135, and the upper end portion of the connecting shaft 131 is screwed with the mounting plate 132. Is screwed to the upper grip 11. The mounting plate 132 is connected to the cross head 23 via a pair of jack bolts 133. Therefore, the upper gripper 11 can be fastened to the crosshead 23 with a predetermined force by moving the mounting plate 132 upward with respect to the crosshead 23 using a pair of jack bolts 133.

枠部材１３９は、連結軸１３１に螺合して固定された支持部１３７と、連結軸１３１の周囲を囲う矩形状の枠部１３６とから構成される。支持部１３７の上面には、半球状の凸部１３８が形成されており、角度調整用カラー部材１３４の下面にはこの凸部１３８と対応する形状を有する半球状の凹部が形成されている。また、支持部１３７の下面は平面状となっており、平面状の位置調整用カラー部材１３５の上面と当接している。   The frame member 139 includes a support portion 137 that is screwed and fixed to the connecting shaft 131, and a rectangular frame portion 136 that surrounds the connecting shaft 131. A hemispherical convex portion 138 is formed on the upper surface of the support portion 137, and a hemispherical concave portion having a shape corresponding to the convex portion 138 is formed on the lower surface of the angle adjusting collar member 134. Further, the lower surface of the support portion 137 has a planar shape, and is in contact with the upper surface of the planar position adjusting collar member 135.

図８は、従来の軸芯調整装置１１３における角度調整用カラー部材１３４付近の平面概要図である。   FIG. 8 is a schematic plan view of the vicinity of the angle adjusting collar member 134 in the conventional shaft adjusting device 113.

この角度調整用カラー部材１３４は、平面視において矩形状の形状を有し、その外周面は、枠部材１３９における枠部１３６と螺合する４本のネジ１４１、１４２、１４３、１４４の先端部と当接している。このため、４本のネジ１４１、１４２、１４３、１４４を調整することにより、枠部材１３９を連結軸１３１とともに傾斜させて上つかみ具１１の角度を調整することが可能となる。すなわち、４本のネジ１４１、１４２、１４３、１４４のうち、互いに対向する２本のネジの一方を緩め一方を締めた状態で、枠部材１３９の半球状の凸部１３８を角度調整用カラー部材１３４の半球状の凹部に沿って移動させることにより、枠部材１３９を連結軸１３１とともに傾斜させることが可能となる。そして、この連結軸１３１の傾斜に伴って、上つかみ具１１が傾斜する。   The angle adjusting collar member 134 has a rectangular shape in a plan view, and an outer peripheral surface thereof is a front end portion of four screws 141, 142, 143, and 144 that are screwed with the frame portion 136 of the frame member 139. Abut. For this reason, by adjusting the four screws 141, 142, 143, and 144, the frame member 139 can be inclined together with the connecting shaft 131 to adjust the angle of the upper gripper 11. That is, of the four screws 141, 142, 143, 144, one of the two screws facing each other is loosened and the other is tightened, and the hemispherical convex portion 138 of the frame member 139 is moved to the angle adjusting collar member. The frame member 139 can be tilted together with the connecting shaft 131 by being moved along the hemispherical concave portion 134. As the connecting shaft 131 is inclined, the upper gripper 11 is inclined.

図９は、従来の軸芯調整装置１１３における位置調整用カラー部材１３５付近の平面概要図である。   FIG. 9 is a schematic plan view of the vicinity of the position adjusting collar member 135 in the conventional shaft center adjusting device 113.

この位置調整用カラー部材１３５は、平面視において矩形状の形状を有し、その外周面は、枠部材１３９における枠部１３６と螺合する４本のネジ１５１、１５２、１５３、１５４の先端部と当接している。このため、４本のネジ１５１、１５２、１５３、１５４を調整することにより、枠部材１３９を連結軸１３１とともに移動させて上つかみ具１１の位置を調整することが可能となる。すなわち、４本のネジ１５１、１５２、１５３、１５４のうち、互いに対向する２本のネジの一方を緩め一方を締めた状態で、枠部材１３９を位置調整用カラー部材１３５の上面に沿って移動させることにより、枠部材１３９を連結軸１３１とともに位置調整用カラー部材１３５に対して相対的に移動させることが可能となる。そして、この連結軸１３１の相対的な移動に伴って、上つかみ具１１が移動する。   The position adjusting collar member 135 has a rectangular shape in plan view, and an outer peripheral surface thereof is a tip portion of four screws 151, 152, 153, and 154 that are screwed into the frame portion 136 of the frame member 139. Abut. Therefore, by adjusting the four screws 151, 152, 153, and 154, the position of the upper gripper 11 can be adjusted by moving the frame member 139 together with the connecting shaft 131. That is, of the four screws 151, 152, 153, 154, the frame member 139 is moved along the upper surface of the position adjusting collar member 135 in a state where one of the two screws facing each other is loosened and the other screw is tightened. By doing so, the frame member 139 can be moved relative to the position adjusting collar member 135 together with the connecting shaft 131. Then, the upper gripper 11 moves with the relative movement of the connecting shaft 131.

この従来の軸芯調整装置１１３においては、枠部材１３９における支持部１３７の上面に半球状の凸部１３８を形成するとともに、支持部１３７の下面を平面状としているが、半球状の凸部１３８を形成するには製作コストが高額となることを考慮し、枠部材１３９の上下両面に円筒状曲面から成る凹部を形成するとともに、その上下に円筒状曲面から成る凸部を形成した一対のカラー部材を配設した軸芯調整装置も提案されている（特許文献１参照）。この特許文献１に記載された軸芯調整装置においても、上述した４本のネジ１４１、１４２、１４３、１４４および４本のネジ１５１、１５２、１５３、１５４に相当するネジを調整することにより、連結軸の位置および角度が調整可能となっている。   In this conventional shaft adjusting device 113, the hemispherical convex portion 138 is formed on the upper surface of the support portion 137 of the frame member 139, and the lower surface of the support portion 137 is planar, but the hemispherical convex portion 138 is formed. In consideration of the high manufacturing cost, a pair of collars in which concave portions made of cylindrical curved surfaces are formed on both upper and lower surfaces of the frame member 139 and convex portions made of cylindrical curved surfaces are formed on the upper and lower sides thereof. An axis adjusting device in which members are arranged has also been proposed (see Patent Document 1). Also in the shaft center adjusting device described in Patent Document 1, by adjusting the screws corresponding to the four screws 141, 142, 143, 144 and the four screws 151, 152, 153, 154 described above, The position and angle of the connecting shaft can be adjusted.

特開２０００−１７１３６６号公報JP 2000-171366 A

上述した従来の軸芯調整装置においては、いずれも、連結軸１３１の位置を調整するために４本のネジ１５１、１５２、１５３、１５４を調整するとき、各ネジ１５１、１５２、１５３、１５４により連結軸１３１を押圧するときの応力の作用線が位置調整用カラー部材１３５の重心を通っていない場合には、位置調整用カラー部材１３５にモーメントが働き、この位置調整用カラー部材１３５が回転する。このため、例えば、Ｘ方向のネジ１５１または１５２を回転させて上つかみ具１１をＸ方向に移動させようとしても、Ｙ方向への意図しない移動が生ずることになる。このため、軸芯調整に時間がかかり、また、正確な軸芯調整がおこなえないという問題が生ずる。   In the conventional shaft center adjusting device described above, when adjusting the four screws 151, 152, 153, 154 to adjust the position of the connecting shaft 131, the screws 151, 152, 153, 154 are used. When the action line of stress when pressing the connecting shaft 131 does not pass through the center of gravity of the position adjustment collar member 135, a moment acts on the position adjustment collar member 135, and the position adjustment collar member 135 rotates. . For this reason, for example, even if the X-direction screw 151 or 152 is rotated to move the upper gripper 11 in the X direction, an unintended movement in the Y direction occurs. For this reason, it takes time to adjust the axis, and there arises a problem that accurate axis adjustment cannot be performed.

さらに、上述した従来の軸芯調整装置においては、いずれも、各ネジ１５１、１５２、１５３、１５４のいずれかを回転させて位置調整をおこなうときには、それらのネジ１５１、１５２、１５３、１５４と対向する位置に配置されたネジを予め緩めておく必要があることから、作業性が悪いという問題も生ずる。   Further, in the conventional shaft center adjusting device described above, when any of the screws 151, 152, 153, 154 is rotated to adjust the position, the screws 151, 152, 153, 154 are opposed to each other. Since it is necessary to loosen the screw arranged at the position to be in advance, there is a problem that workability is poor.

この発明は上記課題を解決するためになされたものであり、軸芯調整を迅速かつ正確に実行することが可能な材料試験機の軸芯調整装置を提供することを目的とする。   The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an axis adjusting device for a material testing machine capable of quickly and accurately executing the axis adjustment.

請求項１に記載の発明は、試験片を把持するつかみ具の軸芯を調整するための材料試験機の軸芯調整装置であって、装置本体側の第１部材と、つかみ具側の第２部材とを連結する連結軸と、前記連結軸に固定された支持部と、前記連結軸を囲う枠部とを有する枠部材と、前記枠部材における枠部の内部で、かつ、前記連結軸の外周部に配設されるとともに、前記第１部材または前記第２部材のいずれか一方に固定された位置調整用カラー部材と、前記位置調整用カラー部材に形成された第１のネジ孔と螺合する第１ネジ部材と、前記枠部に配設され、前記第１ネジ部材の両端部を、当該第１ネジ部材の軸芯と直交する方向にのみ移動可能な状態で軸支する一対の第１案内部材と、前記位置調整用カラー部材に前記第１のネジ孔と直交する方向に形成された第２のネジ孔と螺合する第２ネジ部材と、前記枠部に配設され、前記第２ネジ部材の両端部を、当該第２ネジ部材の軸芯と直交する方向にのみ移動可能な状態で軸支する一対の第２案内部材とを備えたことを特徴とする。   The invention described in claim 1 is an axis adjusting device for a material testing machine for adjusting the axis of a gripping tool for gripping a test piece, the first member on the side of the apparatus main body, and the first member on the side of the gripping tool. A frame member having a connecting shaft for connecting two members, a support portion fixed to the connecting shaft, and a frame portion surrounding the connecting shaft, and inside the frame portion of the frame member, and the connecting shaft A position adjusting collar member fixed to one of the first member and the second member, and a first screw hole formed in the position adjusting collar member. A pair of first screw members that are screwed together and a pair that is disposed on the frame portion and pivotally supports both end portions of the first screw member in a state in which the first screw member can move only in a direction orthogonal to the axis of the first screw member. The first guide member and the position adjusting collar member perpendicular to the first screw hole A second screw member that is screwed into the formed second screw hole and the frame portion, and both ends of the second screw member are only in a direction perpendicular to the axis of the second screw member. And a pair of second guide members that are pivotally supported in a movable state.

請求項２に記載の発明は、請求項１に記載の発明において、前記位置調整用カラー部材を前記第１ネジ部材の軸芯方向に向けて付勢する第１付勢手段と、前記位置調整用カラー部材を前記第２ネジ部材の軸芯方向に向けて付勢する第２付勢手段とをさらに備えている。   According to a second aspect of the present invention, in the first aspect of the present invention, the first biasing means for biasing the position adjusting collar member toward the axial direction of the first screw member, and the position adjustment. And a second urging means for urging the collar member toward the axial direction of the second screw member.

請求項３に記載の発明は、請求項２に記載の発明において、前記第１付勢手段は、前記位置調整用カラー部材と前記枠部との間の位置において、前記第１ネジ部材の外周部に配設された第１コイルバネであり、前記第２付勢手段は、前記位置調整用カラー部材と前記枠部との間の位置において、前記第２ネジ部材の外周部に配設された第２コイルバネである。   According to a third aspect of the present invention, in the second aspect of the present invention, the first urging means is configured such that the first urging member has an outer periphery at a position between the position adjusting collar member and the frame portion. A first coil spring disposed in a portion, wherein the second urging means is disposed on an outer peripheral portion of the second screw member at a position between the position adjusting collar member and the frame portion. A second coil spring.

請求項４に記載の発明は、請求項３に記載の発明において、前記連結軸に対して前記第１ネジ部材と逆側の位置に前記第１ネジ部材と平行に配設され、前記位置調整用カラー部材を前記第１ネジ部材の軸芯方向に案内する第１案内軸と、前記連結軸に対して前記第２ネジ部材と逆側の位置に前記第２ネジ部材と平行に配設され、前記位置調整用カラー部材を前記第２ネジ部材の軸芯方向に案内する第２案内軸とをさらに備える。   According to a fourth aspect of the present invention, in the third aspect of the present invention, the position adjustment is arranged in parallel to the first screw member at a position opposite to the first screw member with respect to the connecting shaft. A first guide shaft for guiding the collar member in the axial direction of the first screw member, and a parallel to the second screw member at a position opposite to the second screw member with respect to the connecting shaft. And a second guide shaft for guiding the position adjusting collar member in the axial direction of the second screw member.

請求項５に記載の発明は、請求項３に記載の発明において、前記枠部材における支持部の前記位置調整用カラー部材とは逆側の面には、半球状の凸部が形成されるとともに、前記支持部における前記位置調整用カラー部材とは逆側の位置に配設され、前記半球状の凸部と対応する半球状の凹部が形成されるとともに、前記第１部材または前記第２部材のうち、前記位置調整用カラー部材が固定されていない側に固定された角度調整用カラー部材と、前記角度調整用カラー部材の前記枠部に対する相対的な位置を変更するための複数のネジとをさらに備える。   According to a fifth aspect of the present invention, in the third aspect of the invention, a hemispherical convex portion is formed on a surface of the support portion of the frame member opposite to the position adjusting collar member. The support member is disposed at a position opposite to the position adjusting collar member, and has a hemispherical concave portion corresponding to the hemispherical convex portion, and the first member or the second member. An angle adjusting collar member fixed to a side on which the position adjusting collar member is not fixed, and a plurality of screws for changing a relative position of the angle adjusting collar member with respect to the frame portion. Is further provided.

請求項６に記載の発明は、請求項１乃至請求項５のいずれかに記載の発明において、前記第１部材はクロスヘッドであり、前記第２部材はつかみ具である。   The invention according to claim 6 is the invention according to any one of claims 1 to 5, wherein the first member is a crosshead, and the second member is a gripping tool.

請求項１に記載の発明によれば、位置調整用カラー部材を第１ネジ部材および第２ネジ部材の作用で互いに直交する方向に移動させることにより、軸芯調整の作業性と精度とを向上させることができる。このため、軸芯調整を迅速かつ正確に実行することが可能となる。   According to the first aspect of the present invention, the workability and accuracy of the shaft center adjustment are improved by moving the position adjusting collar member in directions orthogonal to each other by the action of the first screw member and the second screw member. Can be made. For this reason, it is possible to execute the axis adjustment quickly and accurately.

請求項２に記載の発明によれば、第１ネジ部材または第２ネジ部材を回転させない状態において、位置調整用カラー部材の移動を制限することができ、位置調整用カラー部材をその位置において固定することが可能となる。   According to the second aspect of the present invention, the movement of the position adjusting collar member can be restricted in a state where the first screw member or the second screw member is not rotated, and the position adjusting collar member is fixed at the position. It becomes possible to do.

請求項３に記載の発明によれば、第１、第２ネジ部材の外周部に配設された第１、第２コイルバネの作用により、簡易な構成でありながら位置調整用カラー部材を確実に固定することが可能となる。   According to the third aspect of the present invention, the position adjusting collar member can be reliably secured by the action of the first and second coil springs disposed on the outer peripheral portions of the first and second screw members, although the configuration is simple. It can be fixed.

請求項４に記載の発明によれば、第１、第２案内軸の作用により、位置調整用カラー部材をよりスムースに案内することが可能となる。   According to the fourth aspect of the invention, the position adjusting collar member can be guided more smoothly by the action of the first and second guide shafts.

請求項５に記載の発明によれば、角度調整用カラー部材の作用により、第２部材の角度位置をも調整して軸芯調整をより好適に実行することが可能となる。   According to the fifth aspect of the present invention, it is possible to adjust the axial position of the second member more appropriately by adjusting the angular position of the second member by the action of the angle adjusting collar member.

請求項６に記載の発明によれば、クロスヘッドに対する上つかみ具の位置調整を迅速かつ正確に実行することが可能となる。   According to the sixth aspect of the present invention, the position adjustment of the upper gripper with respect to the cross head can be performed quickly and accurately.

この発明に係る軸芯調整装置を適用した材料試験機の概要図である。It is a schematic diagram of a material testing machine to which the shaft center adjusting device according to the present invention is applied. この発明に係る軸芯調整装置１３の概要図である。It is a schematic diagram of the axial center adjustment apparatus 13 which concerns on this invention. この発明に係る軸芯調整装置１３における角度調整用カラー部材３４付近の平面概要図である。It is a plane schematic diagram of the vicinity of the angle adjusting collar member 34 in the shaft center adjusting device 13 according to the present invention. この発明に係る軸芯調整装置１３における位置調整用カラー部材３５付近の平面概要図である。FIG. 6 is a schematic plan view of the vicinity of the position adjusting collar member 35 in the shaft center adjusting device 13 according to the present invention. 軸芯調整用のテスト用試験片１０ａを示す正面図である。It is a front view which shows the test piece 10a for a test for axial center adjustment. この発明の第２実施形態に係る軸芯調整装置における位置調整用カラー部材３５付近の平面概要図である。It is a plane schematic diagram of the vicinity of the position adjusting collar member 35 in the shaft center adjusting device according to the second embodiment of the present invention. 従来の軸芯調整装置１１３の概要図である。It is a schematic diagram of the conventional axial center adjustment apparatus 113. 従来の軸芯調整装置１１３における角度調整用カラー部材１３４付近の平面概要図である。FIG. 10 is a schematic plan view of the vicinity of an angle adjusting collar member in a conventional shaft adjusting device. 従来の軸芯調整装置１１３における位置調整用カラー部材１３５付近の平面概要図である。FIG. 10 is a schematic plan view of the vicinity of a position adjusting collar member 135 in a conventional shaft adjusting device 113.

以下、この発明の実施の形態を図面に基づいて説明する。最初に、この発明に係る軸芯調整装置を使用する材料試験機について説明する。図１は、この発明に係る軸芯調整装置を適用した材料試験機の概要図である。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. First, a material testing machine that uses the shaft center adjusting device according to the present invention will be described. FIG. 1 is a schematic diagram of a material testing machine to which an axis adjusting device according to the present invention is applied.

この材料試験機は、基台１６と、この基台１６上に立設された左右一対のねじ棹１７と、前記左右一対のねじ棹１７と螺合するナット部を備え、ねじ棹１７に対して昇降するクロスヘッド２３とを備える。クロスヘッド２３には、上つかみ具１１が、この発明に係る軸芯調整装置１３を介して付設されている。また、基台１６には下つかみ具１２が、ロードセル１５を介して付設されている。試験片１０は、その両端をこれらの上つかみ具１１および下つかみ具１２により把持される。   The material testing machine includes a base 16, a pair of left and right screw rods 17 erected on the base 16, and a nut portion screwed with the pair of left and right screw rods 17. And a cross head 23 that moves up and down. The upper grip 11 is attached to the cross head 23 via the shaft center adjusting device 13 according to the present invention. In addition, the lower grip 12 is attached to the base 16 via a load cell 15. The both ends of the test piece 10 are gripped by the upper grip 11 and the lower grip 12.

一対のねじ棹１７の下端部には、各々、同期ベルト２２と係合する同期プーリー２１が配設されている。また、この同期ベルト２２は、モータ１８の駆動により回転する同期プーリー１９とも係合している。このため、一対のねじ棹１７は、モータ１８の駆動により同期して回転する。そして、一対のねじ棹１７が同期して回転することにより、クロスヘッド２３は、一対のねじ棹１７の軸芯方向に昇降する。   Synchronous pulleys 21 that engage with the synchronous belt 22 are disposed at the lower ends of the pair of screw rods 17, respectively. The synchronous belt 22 is also engaged with a synchronous pulley 19 that is rotated by driving of the motor 18. For this reason, the pair of screw rods 17 rotate in synchronization with the drive of the motor 18. Then, as the pair of screw rods 17 rotate in synchronization, the cross head 23 moves up and down in the axial direction of the pair of screw rods 17.

試験片１０に負荷される試験力は、ロードセル１５により検出される。また、試験片１０の上下の標点間の変位量は、変位計１４により検出される。ロードセル１５および変位計１４からの信号は図示しない制御回路に入力される。この制御回路は、ロードセル１５および変位計１４からの信号に基づいて、モータ１８の駆動制御信号を作成する。これにより、モータ１８の回転が制御され、引張や圧縮等の各種材料試験が行われる。   The test force applied to the test piece 10 is detected by the load cell 15. Further, the displacement amount between the upper and lower gauge points of the test piece 10 is detected by the displacement meter 14. Signals from the load cell 15 and the displacement meter 14 are input to a control circuit (not shown). The control circuit creates a drive control signal for the motor 18 based on signals from the load cell 15 and the displacement meter 14. Thereby, the rotation of the motor 18 is controlled, and various material tests such as tension and compression are performed.

次に、この発明に係る軸芯調整装置の構成について説明する。図２は、この発明に係る軸芯調整装置１３の概要図である。   Next, the configuration of the shaft center adjusting device according to the present invention will be described. FIG. 2 is a schematic diagram of the shaft center adjusting device 13 according to the present invention.

この軸芯調整装置１３は、上述した従来の軸芯調整装置１１３と同様、クロスヘッド２３と上つかみ具１１との間に介在されるものであり、クロスヘッド２３と上つかみ具１１とを連結する連結軸３１と、この連結軸３１の中央部に固定された枠部材３９と、枠部材３９の内部で連結軸３１の外周部に配設され、クロスヘッド２３に固定された角度調整用カラー部材３４と、枠部材３９の内部で連結軸３１の外周部に配設され、上つかみ具１１に固定された位置調整用カラー部材３５とを備える。   The shaft adjusting device 13 is interposed between the cross head 23 and the upper gripper 11 and connects the crosshead 23 and the upper gripper 11 in the same manner as the conventional shaft center adjusting device 113 described above. A connecting shaft 31 to be connected, a frame member 39 fixed to the central portion of the connecting shaft 31, and an angle adjusting collar disposed on the outer periphery of the connecting shaft 31 inside the frame member 39 and fixed to the crosshead 23. A member 34 and a position adjusting collar member 35 disposed on the outer periphery of the connecting shaft 31 inside the frame member 39 and fixed to the upper gripper 11 are provided.

連結軸３１は、角度調整用カラー部材３４、枠部材３９および位置調整用カラー部材３５を貫通するとともに、連結軸３１の上端部は取付板３２と螺合しており、連結軸３１の下端部は上つかみ具１１と螺合している。また、取付板３２は、一対のジャッキボルト３３を介してクロスヘッド２３と連結されている。このため、一対のジャッキボルト３３を利用して取付板３２をクロスヘッド２３に対して上方に移動させることにより、上つかみ具１１を所定の力でクロスヘッド２３に対して締結することができる。   The connecting shaft 31 penetrates the angle adjusting collar member 34, the frame member 39 and the position adjusting collar member 35, and the upper end portion of the connecting shaft 31 is screwed with the mounting plate 32. Is screwed to the upper grip 11. The mounting plate 32 is connected to the cross head 23 via a pair of jack bolts 33. For this reason, the upper gripper 11 can be fastened to the crosshead 23 with a predetermined force by moving the attachment plate 32 upward with respect to the crosshead 23 using the pair of jack bolts 33.

枠部材３９は、連結軸３１に螺合して固定された支持部３７と、連結軸３１の周囲を囲う矩形状の枠部３６とから構成される。支持部３７の上面には、半球状の凸部３８が形成されており、角度調整用カラー部材３４の下面にはこの凸部３８と対応する形状を有する半球状の凹部が形成されている。また、支持部３７の下面は平面状となっており、平面状の位置調整用カラー部材３５の上面と当接している。   The frame member 39 includes a support portion 37 that is screwed and fixed to the connecting shaft 31, and a rectangular frame portion 36 that surrounds the periphery of the connecting shaft 31. A hemispherical convex portion 38 is formed on the upper surface of the support portion 37, and a hemispherical concave portion having a shape corresponding to the convex portion 38 is formed on the lower surface of the angle adjusting collar member 34. Further, the lower surface of the support portion 37 has a planar shape and is in contact with the upper surface of the planar position adjusting collar member 35.

図３は、この発明に係る軸芯調整装置１３における角度調整用カラー部材３４付近の平面概要図である。   FIG. 3 is a schematic plan view of the vicinity of the angle adjusting collar member 34 in the shaft center adjusting device 13 according to the present invention.

この角度調整用カラー部材３４は、平面視において矩形状の形状を有し、その外周面は、枠部材３９における枠部３６と螺合する４本のネジ４１、４２、４３、４４の先端部と当接している。このため、４本のネジ４１、４２、４３、４４を調整することにより、枠部材３９を連結軸３１とともに傾斜させて上つかみ具１１の角度を調整することが可能となる。すなわち、４本のネジ４１、４２、４３、４４のうち、互いに対向する２本のネジの一方を緩め一方を締めた状態で、枠部材３９の半球状の凸部３８を角度調整用カラー部材３４の半球状の凹部に沿って移動させることにより、枠部材３９を連結軸３１とともに傾斜させることが可能となる。そして、この連結軸３１の傾斜に伴って、上つかみ具１１が傾斜する。   The angle adjusting collar member 34 has a rectangular shape in plan view, and an outer peripheral surface thereof is a tip portion of four screws 41, 42, 43, 44 that are screwed into the frame portion 36 of the frame member 39. Abut. Therefore, by adjusting the four screws 41, 42, 43, 44, it is possible to adjust the angle of the upper gripper 11 by inclining the frame member 39 together with the connecting shaft 31. That is, of the four screws 41, 42, 43, 44, one of the two screws facing each other is loosened and one of the screws is tightened, and the hemispherical convex portion 38 of the frame member 39 is angle-adjusted collar member. The frame member 39 can be inclined together with the connecting shaft 31 by moving along the 34 hemispherical recesses. As the connecting shaft 31 is inclined, the upper gripper 11 is inclined.

図４は、この発明に係る軸芯調整装置１３における位置調整用カラー部材３５付近の平面概要図である。   FIG. 4 is a schematic plan view of the vicinity of the position adjusting collar member 35 in the shaft center adjusting device 13 according to the present invention.

この位置調整用カラー部材３５は、平面視において矩形状の形状を有し、上述したように、枠部材３９における枠部３６の内部で、かつ、連結軸３１の外周部に配設され、上つかみ具１１に固定されている。   The position adjusting collar member 35 has a rectangular shape in plan view, and is disposed inside the frame portion 36 of the frame member 39 and on the outer peripheral portion of the connecting shaft 31 as described above. It is fixed to the gripping tool 11.

この位置調整用カラー部材３５には、第１のネジ孔が形成されており、この第１のネジ孔には、第１ネジ部材５１が螺合している。この第１ネジ部材５１の両端部は、一対の軸受５３により回転可能に支持されている。これらの一対の軸受５３は、枠部材３９の枠部３６に第１ネジ部材５１の軸芯と直交する方向に形成された凹部５７内において、この凹部５７に沿って移動可能な一対の第１案内部材５４により支持されている。このため、第１ネジ部材５１の両端部は、この第１ネジ部材５１の軸芯と直交する方向にのみ移動可能な状態で軸支されていることになる。   The position adjusting collar member 35 is formed with a first screw hole, and the first screw member 51 is screwed into the first screw hole. Both ends of the first screw member 51 are rotatably supported by a pair of bearings 53. The pair of bearings 53 are a pair of first bearings movable along the recess 57 in a recess 57 formed in the frame portion 36 of the frame member 39 in a direction perpendicular to the axis of the first screw member 51. It is supported by the guide member 54. For this reason, both ends of the first screw member 51 are pivotally supported in a state in which they can move only in a direction orthogonal to the axis of the first screw member 51.

また、この位置調整用カラー部材３５には、第１のネジ孔と直交する方向を向く第２のネジ孔が形成されており、この第２のネジ孔には、第２ネジ部材５２が螺合している。この第２ネジ部材５２の両端部は、一対の軸受５５により回転可能に支持されている。これらの一対の軸受５５は、枠部材３９の枠部３６に第２ネジ部材５２の軸芯と直交する方向（第１ネジ部材５１の軸芯方向）に形成された凹部５８内において、この凹部５８に沿って移動可能な一対の第２案内部材５６により支持されている。このため、第２ネジ部材５２の両端部は、この第２ネジ部材５２の軸芯と直交する方向にのみ移動可能な状態で軸支されていることになる。   Further, the position adjusting collar member 35 is formed with a second screw hole that faces in a direction orthogonal to the first screw hole, and the second screw member 52 is screwed into the second screw hole. Match. Both ends of the second screw member 52 are rotatably supported by a pair of bearings 55. The pair of bearings 55 are formed in the recess portion 58 formed in the frame portion 36 of the frame member 39 in a direction orthogonal to the axis of the second screw member 52 (in the axis direction of the first screw member 51). It is supported by a pair of second guide members 56 that can move along 58. For this reason, both ends of the second screw member 52 are pivotally supported in a state in which they can move only in a direction orthogonal to the axis of the second screw member 52.

位置調整用カラー部材３５と枠部材３９における枠部３６との間の位置における第１ネジ部材５１の外周部には、位置調整用カラー部材３５を枠部３６から離隔する方向に向けて第１ネジ部材５１の軸芯方向に付勢する第１コイルバネ７１が配設されている。また、位置調整用カラー部材３５と枠部材３９における枠部３６との間の位置における第２ネジ部材５２の外周部には、位置調整用カラー部材３５を枠部３６から離隔する方向に向けて第２ネジ部材５２の軸芯方向に付勢する第２コイルバネ７２が配設されている。   On the outer periphery of the first screw member 51 at a position between the position adjustment collar member 35 and the frame portion 36 of the frame member 39, the first position adjustment collar member 35 is directed toward the direction away from the frame portion 36. A first coil spring 71 is disposed to urge the screw member 51 in the axial direction. In addition, the position adjusting collar member 35 is directed toward the direction away from the frame portion 36 on the outer peripheral portion of the second screw member 52 at a position between the position adjusting collar member 35 and the frame portion 36 of the frame member 39. A second coil spring 72 that biases in the axial direction of the second screw member 52 is disposed.

このような構成を有する軸芯調整装置１３においては、第１ネジ部材５１を調整することにより、枠部材３９を位置調整用カラー部材３５の上面に沿って、位置調整用カラー部材３５に対して相対的にＸ方向に移動させることができ、また、第２ネジ部材５２を調整することにより、枠部材３９を位置調整用カラー部材３５の上面に沿って、位置調整用カラー部材３５に対して相対的にＹ方向に移動させることができる。このため、第１ネジ部材５１および第２ネジ部材５２を調整することにより、枠部材３９を位置調整用カラー部材３５の上面に沿ってＸ、Ｙ方向に移動させることにより、枠部材３９を連結軸３１とともに、位置調整用カラー部材３５に対して相対的にＸ、Ｙ方向に移動させることが可能となる。そして、この連結軸３１のＸ、Ｙ方向の移動に伴って、上つかみ具１１がＸ、Ｙ方向に移動する。   In the shaft center adjustment device 13 having such a configuration, the frame member 39 is moved along the upper surface of the position adjustment collar member 35 with respect to the position adjustment collar member 35 by adjusting the first screw member 51. The frame member 39 can be moved relative to the position adjustment collar member 35 along the upper surface of the position adjustment collar member 35 by adjusting the second screw member 52. It can be moved relatively in the Y direction. Therefore, by adjusting the first screw member 51 and the second screw member 52, the frame member 39 is moved in the X and Y directions along the upper surface of the position adjusting collar member 35, thereby connecting the frame member 39. Together with the shaft 31, it can be moved relative to the position adjusting collar member 35 in the X and Y directions. Then, as the connecting shaft 31 moves in the X and Y directions, the upper gripper 11 moves in the X and Y directions.

第１ネジ部材５１および第２ネジ部材５２を回転させない状態においては、第１、第２コイルバネ７１、７２の作用により、位置調整用カラー部材３５が第１ネジ部材５１および第２ネジ部材５２の軸芯方向に付勢されていることから、位置調整用カラー部材３５の移動を制限することができ、位置調整用カラー部材３５をその位置において固定することが可能となる。   In a state where the first screw member 51 and the second screw member 52 are not rotated, the position adjusting collar member 35 of the first screw member 51 and the second screw member 52 is caused by the action of the first and second coil springs 71 and 72. Since it is biased in the axial direction, the movement of the position adjusting collar member 35 can be restricted, and the position adjusting collar member 35 can be fixed at that position.

以上のように、この発明に係る軸芯調整装置１３においては、第１ネジ部材５１および第２ネジ部材５２を調整することにより、枠部材３９を連結軸３１とともに、位置調整用カラー部材３５に対して相対的にＸ、Ｙ方向に移動させることができ、Ｘ、Ｙ方向の軸芯調整を容易に実行することが可能となる。このとき、従来のように、Ｘ方向の軸芯調整時にＹ方向への意図しない移動が生ずることもなく、また、互いに対向するネジを予め緩めておく必要もないことから、軸芯調整の作業性と精度とを向上させることができ、軸芯調整を迅速かつ正確に実行することが可能となる。   As described above, in the shaft center adjusting device 13 according to the present invention, the frame member 39 is moved to the position adjusting collar member 35 together with the connecting shaft 31 by adjusting the first screw member 51 and the second screw member 52. On the other hand, it can be relatively moved in the X and Y directions, and the axis adjustment in the X and Y directions can be easily executed. At this time, unlike the conventional case, there is no unintentional movement in the Y direction when adjusting the axis in the X direction, and it is not necessary to loosen the screws facing each other in advance. The accuracy and accuracy can be improved, and the shaft center adjustment can be performed quickly and accurately.

図５は、軸芯調整用のテスト用試験片１０ａを示す正面図である。   FIG. 5 is a front view showing a test specimen 10a for adjusting the axis.

以上のような軸芯調整装置１３を使用して軸芯調整を行う場合には、図５に示すように、その側面に複数の歪みゲージ６９を多数付設したテスト用試験片１０ａを用いて評価試験を行う。すなわち、テスト用試験片１０ａの両端を上つかみ具１１および下つかみ具１２で把持し、引っ張り負荷を与えたときの歪みゲージ６９の歪みがゼロになるように軸芯調整装置１３を調整する。この場合には、例えば、調整角度が０．１度以下、Ｘ方向およびＹ方向のずれ量が１ｍｍ以下となるように調整する。このような軸芯調整は、材料試験機の出荷時や、上つかみ具１１または下つかみ具１２の交換時に実行される。   When the axis adjustment is performed by using the axis adjustment device 13 as described above, as shown in FIG. 5, evaluation is performed using a test specimen 10a for testing in which a plurality of strain gauges 69 are provided on the side surface. Perform the test. That is, both ends of the test specimen 10a for testing are gripped by the upper gripping tool 11 and the lower gripping tool 12, and the shaft center adjusting device 13 is adjusted so that the strain of the strain gauge 69 is zero when a tensile load is applied. In this case, for example, the adjustment angle is adjusted to 0.1 degrees or less, and the shift amount in the X direction and the Y direction is adjusted to 1 mm or less. Such an axis adjustment is performed when the material testing machine is shipped or when the upper gripper 11 or the lower gripper 12 is replaced.

次に、この発明の他の実施形態について説明する。図６は、この発明の第２実施形態に係る軸芯調整装置における位置調整用カラー部材３５付近の平面概要図である。なお、上述した第１実施形態に係る軸芯調整装置１３と同様の部材については、同一の符号を付して詳細な説明を省略する。   Next, another embodiment of the present invention will be described. FIG. 6 is a schematic plan view of the vicinity of the position adjusting collar member 35 in the shaft center adjusting device according to the second embodiment of the present invention. In addition, about the member similar to the axial center adjustment apparatus 13 which concerns on 1st Embodiment mentioned above, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

この第２実施形態に係る軸芯調整装置は、上述した第１実施形態に係る軸芯調整装置１３に対して、第１案内軸６１および第２案内軸６２を付加することにより、第１ネジ部材５１および第２ネジ部材５２が位置調整用カラー部材３５の中心にない場合においても、よりスムースに軸芯調整を実行することを可能としたものである。   The shaft center adjusting device according to the second embodiment is configured by adding a first guide shaft 61 and a second guide shaft 62 to the shaft center adjusting device 13 according to the first embodiment described above, thereby providing a first screw. Even when the member 51 and the second screw member 52 are not located at the center of the position adjusting collar member 35, the shaft center adjustment can be executed more smoothly.

この第２実施形態に係る軸芯調整装置は、連結軸３１に対して第１ネジ部材５１と逆側の位置にこの第１ネジ部材５１と平行に配設され、位置調整用カラー部材３５を第１ネジ部材６１の軸芯方向に案内する第１案内軸６１と、同じく連結軸３１に対して第２ネジ部材５２と逆側の位置にこの第２ネジ部材５２と平行に配設され、位置調整用カラー部材３５を第２ネジ部材５２の軸芯方向に案内する第２案内軸６２とを備える。   The shaft center adjusting device according to the second embodiment is arranged in parallel to the first screw member 51 at a position opposite to the first screw member 51 with respect to the connecting shaft 31, and the position adjusting collar member 35 is provided. A first guide shaft 61 that guides in the axial direction of the first screw member 61, and is disposed in parallel to the second screw member 52 at a position opposite to the second screw member 52 with respect to the connecting shaft 31, And a second guide shaft 62 for guiding the position adjusting collar member 35 in the axial direction of the second screw member 52.

第１案内軸６１は、位置調整用カラー部材３５に配設された軸受６３により軸支されている。この第１案内軸６１の両端部は、枠部材３９の枠部３６に第１ネジ部材５１の軸芯と直交する方向に形成された凹部６７内において、この凹部６７に沿って移動可能な一対の案内部材６４により支持されている。このため、第１案内軸６１の両端部は、第１ネジ部材５１の軸芯と直交する方向にのみ移動可能な状態で軸支されていることになる。   The first guide shaft 61 is pivotally supported by a bearing 63 disposed on the position adjusting collar member 35. A pair of both ends of the first guide shaft 61 is movable along the recess 67 in a recess 67 formed in the frame 36 of the frame member 39 in a direction perpendicular to the axis of the first screw member 51. The guide member 64 is supported. For this reason, both ends of the first guide shaft 61 are pivotally supported in a state in which they can move only in a direction orthogonal to the axis of the first screw member 51.

同様に、第２案内軸６２は、位置調整用カラー部材３５に配設された軸受６５により軸支されている。この第２案内軸６２の両端部は、枠部材３９の枠部３６に第２ネジ部材５２の軸芯と直交する方向に形成された凹部６８内において、この凹部６８に沿って移動可能な一対の案内部材６６により支持されている。このため、第２案内軸６２の両端部は、第２ネジ部材５２の軸芯と直交する方向にのみ移動可能な状態で軸支されていることになる。   Similarly, the second guide shaft 62 is pivotally supported by a bearing 65 disposed on the position adjusting collar member 35. A pair of both ends of the second guide shaft 62 is movable along the recess 68 in a recess 68 formed in the frame 36 of the frame member 39 in a direction perpendicular to the axis of the second screw member 52. The guide member 66 is supported. For this reason, both ends of the second guide shaft 62 are pivotally supported in a state in which they can move only in a direction orthogonal to the axis of the second screw member 52.

このような構成を有する軸芯調整装置においては、第１、第２ネジ部材５１、５２と、第１、第２案内軸６１、６２とにより、位置調整用カラー部材３５を案内する構成であることから、よりスムースに位置調整用カラー部材３５を案内することができ、軸芯調整をより容易に実行することが可能となる。   In the shaft center adjusting device having such a configuration, the position adjusting collar member 35 is guided by the first and second screw members 51 and 52 and the first and second guide shafts 61 and 62. Therefore, the position adjusting collar member 35 can be guided more smoothly, and the axis adjustment can be performed more easily.

なお、第１ネジ部材５１および第２ネジ部材５２が位置調整用カラー部材３５の中心にない場合においても、軸芯調整をスムースに行うためには、上述した第１、第２案内軸６１、６２を使用するかわりに、連結軸３１に第１、第２ネジ部材５１、５２用の貫通孔を形成し、第１、第２ネジ部材５１、５２をこの貫通孔を貫通する位置に配設するようにしてもよい。   Even when the first screw member 51 and the second screw member 52 are not at the center of the position adjusting collar member 35, the above-described first and second guide shafts 61, 61, Instead of using 62, through-holes for the first and second screw members 51 and 52 are formed in the connecting shaft 31, and the first and second screw members 51 and 52 are arranged at positions passing through the through-holes. You may make it do.

上述した実施形態においては、この発明に係る軸芯調整装置を、装置本体側の第１部材としてのクロスヘッド２３と、つかみ具側の第２部材としての上つかみ具１１との間に配設しているが、この軸芯調整装置は、例えば、下つかみ具１２とロードセル１５の間等の、その他の場所に配設してもよい。この軸芯調整装置は、要するに、装置本体側の何らかの部材と、上つかみ具１１または下つかみ具１２側の何らかの部材の間に配設されればよい。   In the above-described embodiment, the shaft center adjusting device according to the present invention is disposed between the cross head 23 as the first member on the apparatus main body side and the upper gripper 11 as the second member on the gripper side. However, this axis adjusting device may be disposed at other places such as between the lower gripping tool 12 and the load cell 15. In short, this axis adjusting device may be disposed between any member on the apparatus main body side and any member on the upper gripper 11 or lower gripper 12 side.

１０ 試験片
１０ａ テスト用試験片
１１ 上つかみ具
１２ 下つかみ具
１３ 軸芯調整装置
１４ 変位計
１５ ロードセル
１７ ねじ棹
１８ モータ
２３ クロスヘッド
３１ 連結軸
３２ 取付板
３３ ジャッキボルト
３４ 角度調整用カラー部材
３５ 位置調整用カラー部材
３６ 枠部
３７ 支持部
３８ 凸部
３９ 枠部材
４１ ネジ
４２ ネジ
４３ ネジ
４４ ネジ
５１ 第１ネジ部材
５２ 第２ネジ部材
５３ 軸受
５４ 第１案内部材
５５ 軸受
５６ 第２案内部材
５７ 凹部
５８ 凹部
６１ 第１案内軸
６２ 第２案内軸
６９ 歪みゲージ
７１ 第１コイルバネ
７２ 第２コイルバネ DESCRIPTION OF SYMBOLS 10 Test piece 10a Test specimen 11 Upper grip 12 Lower grip 13 Axle adjuster 14 Displacement meter 15 Load cell 17 Screw rod 18 Motor 23 Cross head 31 Connecting shaft 32 Mounting plate 33 Jack bolt 34 Angle adjustment collar member 35 Position adjusting collar member 36 Frame portion 37 Support portion 38 Convex portion 39 Frame member 41 Screw 42 Screw 43 Screw 44 Screw 51 First screw member 52 Second screw member 53 Bearing 54 First guide member 55 Bearing 56 Second guide member 57 Recess 58 Recess 61 First guide shaft 62 Second guide shaft 69 Strain gauge 71 First coil spring 72 Second coil spring

Claims (6)

試験片を把持するつかみ具の軸芯を調整するための材料試験機の軸芯調整装置であって、
装置本体側の第１部材と、つかみ具側の第２部材とを連結する連結軸と、
前記連結軸に固定された支持部と、前記連結軸を囲う枠部とを有する枠部材と、
前記枠部材における枠部の内部で、かつ、前記連結軸の外周部に配設されるとともに、前記第１部材または前記第２部材のいずれか一方に固定された位置調整用カラー部材と、
前記位置調整用カラー部材に形成された第１のネジ孔と螺合する第１ネジ部材と、
前記枠部に配設され、前記第１ネジ部材の両端部を、当該第１ネジ部材の軸芯と直交する方向にのみ移動可能な状態で軸支する一対の第１案内部材と、
前記位置調整用カラー部材に前記第１のネジ孔と直交する方向に形成された第２のネジ孔と螺合する第２ネジ部材と、
前記枠部に配設され、前記第２ネジ部材の両端部を、当該第２ネジ部材の軸芯と直交する方向にのみ移動可能な状態で軸支する一対の第２案内部材と、
を備えたことを特徴とする材料試験機の軸芯調整装置。 An axis adjusting device for a material testing machine for adjusting the axis of a gripping tool for gripping a test piece,
A connecting shaft for connecting the first member on the apparatus main body side and the second member on the gripper side;
A frame member having a support portion fixed to the connection shaft and a frame portion surrounding the connection shaft;
A position adjusting collar member disposed inside the frame portion of the frame member and disposed on the outer peripheral portion of the connecting shaft, and fixed to either the first member or the second member;
A first screw member screwed into a first screw hole formed in the position adjusting collar member;
A pair of first guide members disposed on the frame portion and pivotally supported in a state in which both end portions of the first screw member are movable only in a direction orthogonal to the axis of the first screw member;
A second screw member screwed into a second screw hole formed in a direction orthogonal to the first screw hole in the position adjusting collar member;
A pair of second guide members disposed on the frame portion and pivotally supported in a state in which both end portions of the second screw member are movable only in a direction orthogonal to the axis of the second screw member;
An apparatus for adjusting the axis of a material testing machine. 請求項１に記載の材料試験機の軸芯調整装置において、
前記位置調整用カラー部材を前記第１ネジ部材の軸芯方向に向けて付勢する第１付勢手段と、
前記位置調整用カラー部材を前記第２ネジ部材の軸芯方向に向けて付勢する第２付勢手段と、
をさらに備える材料試験機の軸芯調整装置。 In the axis adjusting device of the material testing machine according to claim 1,
First biasing means for biasing the position adjusting collar member toward the axial direction of the first screw member;
Second urging means for urging the position adjusting collar member toward the axial direction of the second screw member;
A shaft tester for a material testing machine, further comprising: 請求項２に記載の材料試験機の軸芯調整装置において、
前記第１付勢手段は、前記位置調整用カラー部材と前記枠部との間の位置において、前記第１ネジ部材の外周部に配設された第１コイルバネであり、
前記第２付勢手段は、前記位置調整用カラー部材と前記枠部との間の位置において、前記第２ネジ部材の外周部に配設された第２コイルバネである、材料試験機の軸芯調整装置。 In the axis adjusting device of the material testing machine according to claim 2,
The first urging means is a first coil spring disposed on the outer peripheral portion of the first screw member at a position between the position adjusting collar member and the frame portion,
The second urging means is a second coil spring disposed on an outer peripheral portion of the second screw member at a position between the position adjusting collar member and the frame portion. Adjustment device. 請求項３に記載の材料試験機の軸芯調整装置において、
前記連結軸に対して前記第１ネジ部材と逆側の位置に前記第１ネジ部材と平行に配設され、前記位置調整用カラー部材を前記第１ネジ部材の軸芯方向に案内する第１案内軸と、
前記連結軸に対して前記第２ネジ部材と逆側の位置に前記第２ネジ部材と平行に配設され、前記位置調整用カラー部材を前記第２ネジ部材の軸芯方向に案内する第２案内軸と、
をさらに備える材料試験機の軸芯調整装置。 In the axis adjusting device of the material testing machine according to claim 3,
A first guide member that is disposed in parallel to the first screw member at a position opposite to the first screw member with respect to the connecting shaft and guides the position adjusting collar member in the axial direction of the first screw member. A guide shaft;
A second guide member is disposed in parallel to the second screw member at a position opposite to the second screw member with respect to the connecting shaft, and guides the position adjusting collar member in the axial direction of the second screw member. A guide shaft;
A shaft tester for a material testing machine, further comprising: 請求項３に記載の材料試験機の軸芯調整装置において、
前記枠部材における支持部の前記位置調整用カラー部材とは逆側の面には、半球状の凸部が形成されるとともに、
前記支持部における前記位置調整用カラー部材とは逆側の位置に配設され、前記半球状の凸部と対応する半球状の凹部が形成されるとともに、前記第１部材または前記第２部材のうち、前記位置調整用カラー部材が固定されていない側に固定された角度調整用カラー部材と、
前記角度調整用カラー部材の前記枠部に対する相対的な位置を変更するための複数のネジと、
をさらに備える材料試験機の軸芯調整装置。 In the axis adjusting device of the material testing machine according to claim 3,
A hemispherical convex portion is formed on the surface of the support portion of the frame member opposite to the position adjusting collar member, and
A hemispherical concave portion corresponding to the hemispherical convex portion is formed at a position opposite to the position adjusting collar member in the support portion, and the first member or the second member Among them, the angle adjusting collar member fixed to the side where the position adjusting collar member is not fixed,
A plurality of screws for changing a relative position of the angle adjusting collar member with respect to the frame portion;
A shaft tester for a material testing machine, further comprising: 請求項１乃至請求項５のいずれかに記載の材料試験機の軸芯調整装置において、
前記第１部材はクロスヘッドであり、前記第２部材はつかみ具である材料試験機の軸芯調整装置。 In the shaft center adjusting device of the material testing machine according to any one of claims 1 to 5,
The shaft adjusting device of the material testing machine, wherein the first member is a cross head and the second member is a gripper.
JP2010010642A 2010-01-21 2010-01-21 Shaft-center adjustment device of material testing machine Pending JP2011149788A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012047623A (en) * 2010-08-27 2012-03-08 Shimadzu Corp Shaft center adjusting device for material testing machine
CN103383323A (en) * 2013-07-16 2013-11-06 三峡大学 Vibration damping device able to freely adjust force transfer column plane relative position
CN107219116A (en) * 2017-06-23 2017-09-29 武汉大学 The test system of ferroelectric material respondent behavior under the conditions of power electro thermal coupling
CN107490516A (en) * 2017-07-31 2017-12-19 郑州东辰科技有限公司 A kind of drawing instrument
KR102034379B1 (en) * 2018-04-18 2019-11-08 주식회사 테스트원 Alignment Enhancement Apparatus of Material Testing Device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012047623A (en) * 2010-08-27 2012-03-08 Shimadzu Corp Shaft center adjusting device for material testing machine
CN103383323A (en) * 2013-07-16 2013-11-06 三峡大学 Vibration damping device able to freely adjust force transfer column plane relative position
CN107219116A (en) * 2017-06-23 2017-09-29 武汉大学 The test system of ferroelectric material respondent behavior under the conditions of power electro thermal coupling
CN107490516A (en) * 2017-07-31 2017-12-19 郑州东辰科技有限公司 A kind of drawing instrument
CN107490516B (en) * 2017-07-31 2023-11-21 郑州东辰科技有限公司 Drawing instrument
KR102034379B1 (en) * 2018-04-18 2019-11-08 주식회사 테스트원 Alignment Enhancement Apparatus of Material Testing Device

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