JP2010122153A - Device for rocking/rotation testing - Google Patents

Device for rocking/rotation testing Download PDF

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JP2010122153A
JP2010122153A JP2008297991A JP2008297991A JP2010122153A JP 2010122153 A JP2010122153 A JP 2010122153A JP 2008297991 A JP2008297991 A JP 2008297991A JP 2008297991 A JP2008297991 A JP 2008297991A JP 2010122153 A JP2010122153 A JP 2010122153A
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jig
test
spindle
relative displacement
test body
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JP5312917B2 (en
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Takashi Arisaka
尚 有坂
Fumiaki Kanai
文明 金井
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Kayaba System Machinery Co Ltd
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Kayaba System Machinery Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for rocking/rotation testing for carrying out both an endurance test and a performance test on machine parts, etc. <P>SOLUTION: The device 1 for rocking/rotation testing by rocking and rotating a test body 2 includes a tool 50 with the test body 2 coupled thereto, a drive (a swing arm 10 and a spindle 30) for rocking and rotating the tool 50, resistance force measurement means (sensors 51 and 52) provided between the drive (spindle 30) and the tool 50 to measure the resistance force of the test body 2, and a relative displacement allowing gap 20 allowing relative displacement between the tool 50 and the drive (the spindle 30) to such an extent that bending moment equal to or more than an allowable value does not act on the measurement means (the sensors 51 and 52). <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、試験体を揺動させるとともに回転させる揺動回転試験装置に関するものである。   The present invention relates to a rocking and rotating test apparatus for rocking and rotating a test body.

従来、機械部品の耐久性を試験するため、機械部品の試験体を繰り返し運動させる試験装置が用いられる。   2. Description of the Related Art Conventionally, in order to test the durability of a machine part, a test apparatus that repeatedly moves a test piece of the machine part is used.

特許文献1に開示された転がり滑り試験装置は、試験体の揺動運動を繰り返し行い、その耐久性や潤滑性能の評価を行うものである。
特開2003−247915号公報
The rolling slip test apparatus disclosed in Patent Document 1 repeatedly performs a swinging motion of a test body and evaluates its durability and lubrication performance.
JP 2003-247915 A

1台の試験装置によって機械部品等の耐久試験と性能試験との両方を行う場合、試験体を運動させる駆動部に試験体の抵抗力を計測するセンサを設けると、耐久試験時にこのセンサに過大な負荷がかかり、センサを損傷する可能性がある。このため、駆動部にセンサを取り付けたまま耐久試験を行った後に、このセンサを用いて試験体のフリクション等を測定する性能試験を行うことができなかった。   When performing both endurance tests and performance tests on machine parts, etc. using a single test device, if a sensor that measures the resistance of the test body is provided in the drive unit that moves the test body, this sensor will be excessive during the endurance test Load may damage the sensor. For this reason, after performing an endurance test with the sensor attached to the drive unit, it was not possible to perform a performance test for measuring friction or the like of the specimen using this sensor.

本発明は上記の問題点に鑑みてなされたものであり、機械部品等の耐久試験と性能試験との両方を行うことが可能な揺動回転試験装置を提供することを目的とする。   The present invention has been made in view of the above problems, and an object of the present invention is to provide a rocking and rotating test apparatus capable of performing both a durability test and a performance test on mechanical parts and the like.

本発明は、試験体を揺動させるとともに回転させる揺動回転試験装置であって、試験体が連結される治具と、この治具を揺動させるとともに回転させる駆動部と、この駆動部と治具との間に設けられ試験体の抵抗力を計測する抵抗力計測手段と、抵抗力計測手段に許容値以上の曲げモーメントが作用しない範囲で治具と駆動部の相対変位を許容する相対変位許容間隙を備えることを特徴とするものとした。   The present invention relates to a swing rotation test apparatus that swings and rotates a test body, a jig to which the test body is connected, a drive unit that swings and rotates the jig, and the drive unit. A resistance measuring means that is provided between the jig and that measures the resistance force of the specimen, and a relative that allows relative displacement between the jig and the drive unit within a range in which a bending moment exceeding the allowable value does not act on the resistance measuring means. It was characterized by having a displacement allowable gap.

本発明によると、揺動回転試験装置は、例えば試験体のフリクション性能等を評価する性能試験時に、駆動部が動かされることにより許容値以下の横力が負荷された場合に、治具と駆動部の規制部とが互いに当接せず、この横力に応じた曲げモーメントが抵抗力計測手段に負荷され、抵抗力計測手段の出力信号に基づいて試験体のフリクション性能等を評価することができる。   According to the present invention, the oscillating rotation test apparatus is configured to drive a jig and a drive when a lateral force less than an allowable value is applied by moving the drive unit, for example, during a performance test for evaluating the friction performance of the test specimen. It is possible to evaluate the friction performance and the like of the test specimen based on the output signal of the resistance force measuring means. it can.

試験体の耐久性等を評価する耐久試験時に、駆動部の規制部と治具とが互いに当接し、それ以上の曲げモーメントが抵抗力計測手段に負荷されることを回避し、抵抗力計測手段が保護される。これにより、駆動部と治具との相対変位を規制するロック機構等を設ける必要がなく、構造の簡素化がはかれる。   During the durability test to evaluate the durability etc. of the test body, the restricting part of the drive part and the jig abut against each other, avoiding any more bending moment being applied to the resistance measuring means, and the resistance measuring means Is protected. Thereby, it is not necessary to provide a lock mechanism or the like for restricting the relative displacement between the drive unit and the jig, and the structure can be simplified.

こうして、1台の揺動回転試験装置によって耐久試験と性能試験とを行うことが可能であり、温度条件等を一定に維持したままこれらの試験を続けて行うことができる。   In this way, it is possible to perform a durability test and a performance test with a single oscillating rotation test apparatus, and these tests can be continuously performed while maintaining a constant temperature condition or the like.

以下、本発明の実施の形態を添付図面に基づいて説明する。   Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

まず、図1に本発明が適用可能な揺動回転試験装置の一例を示す。図1に示す揺動回転試験装置1は、試験体2の揺動と回転を繰り返して作動させる耐久試験を行うとともに、この耐久試験の前後で試験体2のフリクション等を測定する性能試験を行うものである。   First, FIG. 1 shows an example of a swing rotation test apparatus to which the present invention can be applied. The swing rotation test apparatus 1 shown in FIG. 1 performs a durability test in which the swing and rotation of the test body 2 are repeatedly operated, and performs a performance test to measure the friction of the test body 2 before and after the durability test. Is.

図1は揺動回転試験装置1のセンサ取り付け部を示す断面図である。ここで、互いに直交するX、Y、Zの3軸を設定し、X軸が略水平横方向、Y軸が略水平前後方向、Z軸が略垂直方向に延びるものとし、以下、図1において揺動回転試験装置1の構成について説明する。   FIG. 1 is a cross-sectional view showing a sensor mounting portion of the swing rotation test apparatus 1. Here, three axes X, Y, and Z orthogonal to each other are set, the X axis extends in a substantially horizontal lateral direction, the Y axis extends in a substantially horizontal front-rear direction, and the Z axis extends in a substantially vertical direction. The configuration of the swing rotation test apparatus 1 will be described.

揺動回転試験装置1は、図示しない架台に対してY軸方向に延びる揺動中心軸(Y軸)まわりに揺動するスイングアーム10と、このスイングアーム10に対してベアリング29を介して回転するスピンドル30と、このスピンドル30に対して試験体2を連結する治具50と、架台に対して試験体2を連結する固定治具49とを備え、試験体2をスイングアーム10の揺動中心軸(図示せず)まわりに揺動させるとともに、試験体2をスピンドル30の回転中心軸Oまわりに回転させるようになっている。   The swing / rotation test apparatus 1 swings about a swing center axis (Y axis) extending in the Y-axis direction with respect to a gantry (not shown), and rotates with respect to the swing arm 10 via a bearing 29. A spindle 30 for connecting the test body 2 to the spindle 30, and a fixing jig 49 for connecting the test body 2 to the gantry. While swinging around a center axis (not shown), the test body 2 is rotated around the rotation center axis O of the spindle 30.

例えばボールジョイントである試験体2は、互いに回動可能に嵌合するボール4とケージ5とを備え、二つの部材を回動可能に連結する自在継ぎ手として機能するものである。   For example, the test body 2 that is a ball joint includes a ball 4 and a cage 5 that are rotatably fitted to each other, and functions as a universal joint that rotatably connects two members.

試験体2は、そのボール4が治具50に締結され、そのケージ5が固定治具49に締結される。   The test body 2 has its balls 4 fastened to a jig 50 and its cage 5 fastened to a fixing jig 49.

なお、試験体2はボールジョイントに限らず、二つの部材を回動可能に嵌合する構成を有する他の機械部品でもよい。   In addition, the test body 2 is not limited to a ball joint, and may be another mechanical component having a configuration in which two members are rotatably fitted.

揺動回転試験装置1は、性能試験時に、試験体2に負荷をかけた状態でセンサ51、52の計測値に基づいて試験体2のフリクションを測定するようになっている。   The swing rotation test apparatus 1 measures the friction of the test body 2 based on the measured values of the sensors 51 and 52 in a state where a load is applied to the test body 2 during the performance test.

試験体2の抵抗力を計測する抵抗力計測手段として、スピンドル30と治具50との間に、分力センサ51とトルクセンサ52とが設けられる。   A component force sensor 51 and a torque sensor 52 are provided between the spindle 30 and the jig 50 as resistance force measuring means for measuring the resistance force of the test body 2.

分力センサ51は、スイングアーム10を揺動させたときに試験体2のフリクションにより発生するX、Yの2軸方向の分力を計測するものである。   The component force sensor 51 measures the component forces in the X and Y biaxial directions generated by the friction of the test body 2 when the swing arm 10 is swung.

トルクセンサ52は、スピンドル30により試験体2を回転させたときに試験体2のフリクションにより発生するZ軸まわりの抵抗をトルクとして計測するものである。   The torque sensor 52 measures the resistance around the Z axis generated by the friction of the test body 2 when the test body 2 is rotated by the spindle 30 as torque.

スピンドル30に治具50を連結するプリロードボルト(センサ固定ボルト)54が設けられる。このプリロードボルト54は、その端部がスピンドル30に螺合して締結され、スピンドル30の回転中心軸O上に取り付けられる。   A preload bolt (sensor fixing bolt) 54 for connecting the jig 50 to the spindle 30 is provided. The end of the preload bolt 54 is screwed to the spindle 30 and fastened, and is mounted on the rotation center axis O of the spindle 30.

プリロードボルト54を貫通させる円筒状の芯だしスリーブ48が設けられる。円環状のセンサ51、52は、芯だしスリーブ48の外周面に嵌合して支持される。   A cylindrical centering sleeve 48 through which the preload bolt 54 passes is provided. The annular sensors 51 and 52 are supported by being fitted to the outer peripheral surface of the centering sleeve 48.

プリロードボルト54の端部にプリロード用ナット79が螺合し、スピンドル30とプリロード用ナット79との間にセンサ51、52、センサアタッチメント60が並んで締結される。センサ51、52は、プリロードボルト54によって所定の締め付け荷重が付与される。   A preload nut 79 is screwed into an end portion of the preload bolt 54, and the sensors 51 and 52 and the sensor attachment 60 are fastened side by side between the spindle 30 and the preload nut 79. The sensors 51 and 52 are given a predetermined tightening load by a preload bolt 54.

治具50を構成するセンサアタッチメント60は、有底円筒状に形成され、円盤状のセンサアタッチメント底部61と、円筒状のセンサアタッチメント円筒部62を有する。   The sensor attachment 60 constituting the jig 50 is formed in a bottomed cylindrical shape, and includes a disk-shaped sensor attachment bottom portion 61 and a cylindrical sensor attachment cylindrical portion 62.

センサアタッチメント円筒部62の環状端部には、円環状のスペーサ57が複数のボルト69を介して締結され、このスペーサ57に治具50が締結される。   An annular spacer 57 is fastened to the annular end of the sensor attachment cylindrical part 62 via a plurality of bolts 69, and the jig 50 is fastened to the spacer 57.

センサアタッチメント底部61は、プリロード用ナット79とトルクセンサ52との間に介装される。これにより、センサアタッチメント60は、治具50が試験体2から受ける負荷をトルクセンサ52と分力センサ51に伝達する。   The sensor attachment bottom 61 is interposed between the preload nut 79 and the torque sensor 52. Thereby, the sensor attachment 60 transmits the load received by the jig 50 from the test body 2 to the torque sensor 52 and the component force sensor 51.

揺動回転試験装置1は、耐久試験時に、図示しないサーボアクチュエータによって試験体2にZ軸方向とX軸方向の荷重が付与された状態で、試験体2をスイングアーム10の揺動中心軸まわりに揺動させるとともに、試験体2をスピンドル30の回転中心軸Oまわりに回転させる作動が繰り返し行われる。   In the endurance test, the swing / rotation test apparatus 1 moves the test body 2 around the swing center axis of the swing arm 10 in a state where loads in the Z-axis direction and the X-axis direction are applied to the test body 2 by a servo actuator (not shown). The operation of rotating the test body 2 around the rotation center axis O of the spindle 30 is repeatedly performed.

耐久試験時に、センサ51、52を保護するため、駆動部(スピンドル30)と治具50の間に相対変位許容間隙20が画成される。この相対変位許容間隙20によって、センサ51、52に所定の許容値以上の過大な曲げモーメントが作用しない範囲で治具50と駆動部(スピンドル30)の相対変位が許容される。   In order to protect the sensors 51 and 52 during the durability test, a relative displacement allowable gap 20 is defined between the drive unit (spindle 30) and the jig 50. The relative displacement permissible gap 20 allows relative displacement between the jig 50 and the drive unit (spindle 30) within a range in which an excessive bending moment exceeding a predetermined allowable value does not act on the sensors 51 and 52.

スピンドル30は、円筒状の治具包囲壁31を有し、この治具包囲壁31によってセンサ51、52とセンサアタッチメント60とが包囲される。センサアタッチメント60は治具50の一部として治具包囲壁31によって包囲される。   The spindle 30 has a cylindrical jig surrounding wall 31, and the sensors 51 and 52 and the sensor attachment 60 are surrounded by the jig surrounding wall 31. The sensor attachment 60 is surrounded by the jig surrounding wall 31 as a part of the jig 50.

図2にも示すように、相対変位許容間隙20は、センサアタッチメント円筒部62の外周面63と、治具包囲壁31の内周面33に設けられる環状の規制部22との間に、スピンドル30の回転中心軸Oについて半径方向の隙間として画成される。   As shown also in FIG. 2, the relative displacement allowable gap 20 is formed between the outer peripheral surface 63 of the sensor attachment cylindrical portion 62 and the annular restricting portion 22 provided on the inner peripheral surface 33 of the jig surrounding wall 31. 30 rotation center axes O are defined as radial gaps.

治具50と駆動部(スピンドル30)に負荷が働かない自由状態にて、センサアタッチメント円筒部62の外周面63とスピンドル30の内周面33とは、スピンドル30の回転中心軸Oについて同心円上に延び、相対変位許容間隙20は周方向について均等な幅を持つ環状の空間として画成される。これにより、センサ51、52に所定の許容値以上の過大な曲げモーメントが作用しない範囲で治具50と駆動部(スピンドル30)の相対変位が許容される。   The outer peripheral surface 63 of the sensor attachment cylindrical portion 62 and the inner peripheral surface 33 of the spindle 30 are concentric with respect to the rotation center axis O of the spindle 30 in a free state where no load is applied to the jig 50 and the drive unit (spindle 30). The relative displacement allowable gap 20 is defined as an annular space having a uniform width in the circumferential direction. As a result, relative displacement between the jig 50 and the drive unit (spindle 30) is allowed within a range in which an excessive bending moment exceeding a predetermined allowable value does not act on the sensors 51 and 52.

治具50と駆動部(スピンドル30)に負荷が働いてセンサ51、52に曲げモーメントが働くと、センサアタッチメント60がスピンドル30の回転中心軸Oに対して偏心し、センサアタッチメント円筒部62がスピンドル30の内周面33に当接すると、センサアタッチメント60の変位が規制され、それ以上の曲げモーメントがセンサ51、52に負荷されることを回避できる。   When a load is applied to the jig 50 and the drive unit (spindle 30) and a bending moment is applied to the sensors 51 and 52, the sensor attachment 60 is decentered with respect to the rotation center axis O of the spindle 30, and the sensor attachment cylinder 62 is the spindle. When abutting on the inner peripheral surface 33 of the sensor 30, the displacement of the sensor attachment 60 is restricted, and it is possible to avoid that a bending moment beyond that is applied to the sensors 51 and 52.

これについて詳述すると、水平加振力によりプリロードボルト54が、図3において、プリロードボルト54とセンサ51、52とセンサアタッチメント60の中心線Pは、無負荷時に実線で示すように直線状に延び、水平加振力Fが加わると、2点鎖線で示すように変形する。実際には中心線Pは曲率を持った変形になるが、微少変位の曲率のため、ここでは曲率を無視している。   More specifically, the preload bolt 54 is extended by a horizontal excitation force, and the center line P of the preload bolt 54, the sensors 51 and 52, and the sensor attachment 60 in FIG. 3 extends linearly as shown by a solid line when there is no load. When the horizontal excitation force F is applied, it is deformed as indicated by a two-dot chain line. Actually, the center line P is deformed with a curvature, but the curvature is neglected here because of the slight displacement.

治具包囲壁31は、図2においてハッチング部分であり、水平加振力Fに対して十分な剛性を持つものし、センサアタッチメント60が治具包囲壁31の規制部22に当接した後は、水平加振力Fが増加しても、F′は規制部22に当接するまでの曲げ変形をプリロードボルト54に与える力以上に増加しないものとする。   The jig surrounding wall 31 is a hatched portion in FIG. 2 and has sufficient rigidity with respect to the horizontal excitation force F. After the sensor attachment 60 comes into contact with the regulating portion 22 of the jig surrounding wall 31, Even if the horizontal excitation force F is increased, F ′ is assumed not to increase more than the force applied to the preload bolt 54 until bending contact with the restricting portion 22.

センサ51、52に働く曲げモーメントMは、M=F′×iであり、Mをセンサ半径Rで除した値W(=M/R)がセンサ51、52に曲げをかける力として働く。   The bending moment M acting on the sensors 51 and 52 is M = F ′ × i, and a value W (= M / R) obtained by dividing M by the sensor radius R acts as a force for bending the sensors 51 and 52.

治具包囲壁31の内周面33の内径D1とセンサアタッチメント円筒部62の外径D2との間に画成される相対変位許容間隙20の隙間bは、以下の手順で求められる。   The clearance b of the relative displacement allowable gap 20 defined between the inner diameter D1 of the inner peripheral surface 33 of the jig surrounding wall 31 and the outer diameter D2 of the sensor attachment cylindrical portion 62 is obtained by the following procedure.

・まず、センサ51、52の許容曲げモーメントMからプリロードボルト54に働く曲げ力F′を次式で求める。
F′=M/i …(1)
First, the bending force F ′ acting on the preload bolt 54 is obtained from the allowable bending moment M of the sensors 51 and 52 by the following equation.
F ′ = M / i (1)

・曲げ力F′によるプリロードボルト54のたわみ量δを、片持ち梁のたわみとして次式で求める。ただし、ただし、Eはプリロードボルト54の縦弾性係数であり、Iはプリロードボルト54の断面二次モーメントとする。
δ=F′×i3/3×E×I=(M/i)×i3/3×E×I=M×i2/3×E×I
…(2)
The amount of deflection δ of the preload bolt 54 due to the bending force F ′ is obtained as the deflection of the cantilever by the following equation However, E is a longitudinal elastic modulus of the preload bolt 54, and I is a cross-sectional secondary moment of the preload bolt 54.
δ = F '× i 3/ 3 × E × I = (M / i) × i 3/3 × E × I = M × i 2/3 × E × I
... (2)

・プリロードボルト54の撓み量δと相対変位許容間隙20の隙間bの関係は、
i:δ=h:bとして表され、撓み量δを次式で求める。
δ=(i/h)×b …(3)
The relationship between the deflection amount δ of the preload bolt 54 and the gap b of the relative displacement allowable gap 20 is
i: δ = h: b, and the amount of deflection δ is obtained by the following equation.
δ = (i / h) × b (3)

・相対変位許容間隙20の隙間bを、センサ51、52の許容曲げモーメントMから次式で求める。
(3)式のδを(2)式に代入すると、
(i/h)×b=M×i2/3×E×I
従って、
b=M×h×i/3×E×I …(4)
故に、b≦M×h×i/3×E×Iの関係を満たすように、相対変位許容間隙20の隙間bを設定すれば、センサ51、52にかかる曲げモーメントを許容値以内に収めることができる。
The clearance b of the relative displacement allowable gap 20 is obtained from the allowable bending moment M of the sensors 51 and 52 by the following equation.
Substituting δ in equation (3) into equation (2),
(I / h) × b = M × i 2/3 × E × I
Therefore,
b = M × h × i / 3 × E × I (4)
Therefore, if the clearance b of the relative displacement allowable gap 20 is set so as to satisfy the relationship of b ≦ M × h × i / 3 × E × I, the bending moment applied to the sensors 51 and 52 can be kept within the allowable value. Can do.

例えば、許容曲げモーメントMが200N・m、hが8cm、iが6cm、F′が340kgf、Eが2100000kgf/cm2、Iが025cm4、とすると、相対変位許容間隙20の隙間bは、0.6mm程度になる。 For example, if the allowable bending moment M is 200 N · m, h is 8 cm, i is 6 cm, F ′ is 340 kgf, E is 2100000 kgf / cm 2 , and I is 025 cm 4 , the clearance b of the relative displacement allowable gap 20 is 0. About 6mm.

これにより、耐久試験時に、プリロードボルト54に大きな曲げモーメントが負荷されると、駆動部(スピンドル30)の規制部22と治具50とが互いに当接し、それ以上の曲げモーメントがセンサ51、52に負荷されることを回避できる。こうして、センサ51、52が保護される。   As a result, when a large bending moment is applied to the preload bolt 54 during the durability test, the restricting portion 22 of the driving portion (spindle 30) and the jig 50 come into contact with each other, and the bending moment beyond that is detected by the sensors 51 and 52. Can be avoided. Thus, the sensors 51 and 52 are protected.

一方、試験体2のフリクション性能等を評価する性能試験時に、許容値以下の横力が加わるとにより、駆動部(スピンドル30)が相対変位許容間隙20の隙間bの範囲内で動かされて駆動部(スピンドル30)の規制部22と治具50とが互いに当接せず、この横力に応じた曲げモーメントが分力センサ51に負荷され、分力センサ51の出力信号に基づいて試験体2のフリクション性能等を評価することができる。   On the other hand, when a lateral force less than the allowable value is applied during a performance test for evaluating the friction performance or the like of the test body 2, the drive unit (spindle 30) is moved within the range of the clearance b of the relative displacement allowable gap 20 and driven. The control part 22 of the part (spindle 30) and the jig 50 do not contact each other, and a bending moment corresponding to this lateral force is loaded on the component force sensor 51, and the test body is based on the output signal of the component force sensor 51. 2 friction performance and the like can be evaluated.

本実施の形態では、試験体2を揺動させるとともに回転させる揺動回転試験装置1であって、試験体2が連結される治具50と、この治具50を揺動させるとともに回転させる駆動部(スイングアーム10、スピンドル30)と、この駆動部(スピンドル30)と治具50との間に設けられ試験体2の抵抗力を計測する抵抗力計測手段(センサ51、52)と、抵抗力計測手段(センサ51、52)に許容値以上の曲げモーメントが作用しない範囲で治具50と駆動部(スピンドル30)の相対変位を許容する相対変位許容間隙20を備える構成とした。   In the present embodiment, the swing rotation test apparatus 1 swings and rotates the test body 2, and includes a jig 50 to which the test body 2 is coupled, and a drive that swings and rotates the jig 50. Part (swing arm 10, spindle 30), resistance force measuring means (sensors 51, 52) provided between the driving part (spindle 30) and the jig 50 and measuring the resistance force of the test body 2, and resistance A relative displacement allowable gap 20 that allows relative displacement between the jig 50 and the drive unit (spindle 30) in a range in which a bending moment greater than the allowable value does not act on the force measuring means (sensors 51 and 52) is provided.

上記構成に基づき、揺動回転試験装置1は、試験体2の耐久性等を評価する耐久試験時に、駆動部(スピンドル30)の規制部22と治具50とが互いに当接し、それ以上の曲げモーメントがセンサ51、52に負荷されることを回避し、センサ51、52が保護される。   Based on the above-described configuration, the swing rotation test apparatus 1 is configured so that the restriction portion 22 of the drive portion (spindle 30) and the jig 50 are in contact with each other during the durability test for evaluating the durability of the test body 2 and the like. The bending moment is not applied to the sensors 51 and 52, and the sensors 51 and 52 are protected.

これにより、駆動部(スピンドル30)と治具50との相対変位を規制するロック機構等を設ける必要がなく、構造の簡素化がはかれる。   Thereby, it is not necessary to provide a lock mechanism or the like for restricting the relative displacement between the drive unit (spindle 30) and the jig 50, and the structure can be simplified.

こうして、1台の揺動回転試験装置によって耐久試験と性能試験とを行うことが可能であり、温度条件等を一定に維持したままこれらの試験を続けて行うことができる。   In this way, it is possible to perform a durability test and a performance test with a single oscillating rotation test apparatus, and these tests can be continuously performed while maintaining a constant temperature condition or the like.

本実施の形態では、駆動部として、揺動中心軸まわりに揺動するスイングアーム10と、このスイングアーム10に対して回転する駆動部(スピンドル30)とを備える。   In the present embodiment, the drive unit includes a swing arm 10 that swings around the swing center axis, and a drive unit (spindle 30) that rotates relative to the swing arm 10.

これにより、揺動回転試験装置1は、試験体2を揺動させる動作と試験体2を回転させる動作を同時に行うことができる。   Thereby, the swing rotation test apparatus 1 can simultaneously perform an operation of swinging the test body 2 and an operation of rotating the test body 2.

本実施の形態では、駆動部(スピンドル30)に治具50を包囲する治具包囲壁31を設け、相対変位許容間隙20は駆動部(スピンドル30)の回転中心軸Oについて半径方向の隙間として画成される構成とした。   In the present embodiment, a jig surrounding wall 31 that surrounds the jig 50 is provided in the drive unit (spindle 30), and the relative displacement allowable gap 20 is a gap in the radial direction with respect to the rotation center axis O of the drive unit (spindle 30). The composition is defined.

上記構成に基づき、治具包囲壁31に十分な剛性を持たせられ、センサ51、52に過大な曲げモーメントが負荷されることを回避できる。   Based on the above configuration, the jig surrounding wall 31 is given sufficient rigidity, and an excessive bending moment can be avoided from being applied to the sensors 51 and 52.

本発明は上記の実施の形態に限定されずに、その技術的な思想の範囲内において種々の変更がなしうることは明白である。   The present invention is not limited to the above-described embodiment, and it is obvious that various modifications can be made within the scope of the technical idea.

本発明の実施の形態を示す揺動回転試験装置の断面図。Sectional drawing of the rocking | swiveling rotation test apparatus which shows embodiment of this invention. 同じく治具等の断面図。Sectional drawing of jigs etc. similarly. 同じくプリロードボルトに曲げモーメントが働く様子を示す図。The figure which shows a mode that a bending moment similarly acts on a preload bolt.

符号の説明Explanation of symbols

1 揺動回転試験装置
2 試験体
10 スイングアーム(駆動部)
20 相対変位許容間隙
22 規制部
30 スピンドル(駆動部)
31 治具包囲壁
33 内周面
49 固定治具
50 治具
51 分力センサ(抵抗力計測手段)
52 トルクセンサ(抵抗力計測手段)
54 プリロードボルト
60 センサアタッチメント
DESCRIPTION OF SYMBOLS 1 Oscillation rotation test apparatus 2 Test body 10 Swing arm (drive part)
20 Relative displacement permissible gap 22 Restriction part 30 Spindle (drive part)
31 Jig enclosure wall 33 Inner peripheral surface 49 Fixing jig 50 Jig 51 Component force sensor (resistance measuring means)
52 Torque sensor (resistance force measuring means)
54 Preload bolt 60 Sensor attachment

Claims (2)

試験体を揺動させるとともに回転させる揺動回転試験装置であって、
前記試験体が連結される治具と、
この治具を揺動させるとともに回転させる駆動部と、
この駆動部と前記治具との間に設けられ試験体の抵抗力を計測する抵抗力計測手段と、
前記抵抗力計測手段に許容値以上の曲げモーメントが作用しない範囲で前記治具と前記駆動部の相対変位を許容する相対変位許容間隙を備えたことを特徴とする揺動回転試験装置。
An oscillating rotation test device that oscillates and rotates the test body,
A jig to which the specimen is connected;
A drive unit for swinging and rotating the jig;
Resistance force measuring means for measuring the resistance force of the specimen provided between the drive unit and the jig;
A swing / rotation testing apparatus comprising a relative displacement permissible gap that allows relative displacement between the jig and the drive unit within a range in which a bending moment greater than a permissible value does not act on the resistance force measuring means.
前記駆動部に前記治具を包囲する治具包囲壁を設け、
前記相対変位許容間隙を前記駆動部の回転中心軸について半径方向の隙間として画成したことを特徴とする請求項1に記載の揺動回転試験装置。
A jig surrounding wall for surrounding the jig is provided in the driving unit,
2. The swing rotation test apparatus according to claim 1, wherein the relative displacement permissible gap is defined as a radial gap with respect to the rotation center axis of the drive unit.
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CN103398838A (en) * 2013-07-01 2013-11-20 广西玉柴机器股份有限公司 Pull-out force detecting device for valve rocker ball head combined component
CN106768994A (en) * 2017-03-20 2017-05-31 吉林大学 A kind of electro spindle reliability test of multiple physical field Combined Loading
CN112729787A (en) * 2020-12-22 2021-04-30 中科新松有限公司 Mechanical simulation device and method
CN116026576A (en) * 2023-03-24 2023-04-28 山东普鲁特机床有限公司 High-precision turning and milling composite machining center performance test bed

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JPH0257938A (en) * 1988-08-23 1990-02-27 Honda Motor Co Ltd Apparatus for checking equal velocity coupling
JPH0768487A (en) * 1993-09-06 1995-03-14 Fujitsu Ltd Locking mechanism of force and torque sensor and its releasing method
JP2003247915A (en) * 2002-02-26 2003-09-05 Ntn Corp Rolling slide test method

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JPS6390729A (en) * 1986-10-03 1988-04-21 Ee & D:Kk Load cell with stopper mechanism
JPS63271129A (en) * 1987-04-28 1988-11-09 Hitachi Constr Mach Co Ltd Load detector
JPH0257938A (en) * 1988-08-23 1990-02-27 Honda Motor Co Ltd Apparatus for checking equal velocity coupling
JPH0768487A (en) * 1993-09-06 1995-03-14 Fujitsu Ltd Locking mechanism of force and torque sensor and its releasing method
JP2003247915A (en) * 2002-02-26 2003-09-05 Ntn Corp Rolling slide test method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103398838A (en) * 2013-07-01 2013-11-20 广西玉柴机器股份有限公司 Pull-out force detecting device for valve rocker ball head combined component
CN103398838B (en) * 2013-07-01 2016-02-24 广西玉柴机器股份有限公司 Valve rocker bulb conjunction pull-out force pick-up unit
CN106768994A (en) * 2017-03-20 2017-05-31 吉林大学 A kind of electro spindle reliability test of multiple physical field Combined Loading
CN112729787A (en) * 2020-12-22 2021-04-30 中科新松有限公司 Mechanical simulation device and method
CN116026576A (en) * 2023-03-24 2023-04-28 山东普鲁特机床有限公司 High-precision turning and milling composite machining center performance test bed
CN116026576B (en) * 2023-03-24 2023-06-20 山东普鲁特机床有限公司 High-precision turning and milling composite machining center performance test bed

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