JPH0457212B2 - - Google Patents
Info
- Publication number
- JPH0457212B2 JPH0457212B2 JP60209050A JP20905085A JPH0457212B2 JP H0457212 B2 JPH0457212 B2 JP H0457212B2 JP 60209050 A JP60209050 A JP 60209050A JP 20905085 A JP20905085 A JP 20905085A JP H0457212 B2 JPH0457212 B2 JP H0457212B2
- Authority
- JP
- Japan
- Prior art keywords
- leaf spring
- load
- test piece
- main body
- pair
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Description
【発明の詳細な説明】
(a) 発明の技術分野
本発明は、セラミツクスの曲げ試験や疲労試験
等に好適なセラミツクス用試験装置に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION (a) Technical Field of the Invention The present invention relates to a testing device for ceramics suitable for bending tests, fatigue tests, etc. of ceramics.
(b) 従来技術と問題点
従来、セラミツクス用の試験装置は開発中であ
り、金属用の試験装置を利用しているのが現状で
ある。(b) Prior art and problems Conventionally, testing equipment for ceramics is under development, and testing equipment for metals is currently being used.
しかしながら、金属用の試験装置では、試験開
始直後、掴み具近傍での破壊が多く、そのような
破壊が予測される場合には試験が困難である。 However, in metal testing equipment, there are many fractures near the gripping tools immediately after the start of the test, and it is difficult to conduct the test when such fractures are predicted.
そのため、試験精度ならびに効率の優れたセラ
ミツクス用の試験装置の開発が要望されている。 Therefore, there is a demand for the development of a testing device for ceramics with excellent testing accuracy and efficiency.
(c) 発明の目的
本発明は、上記の点に鑑み、ぜい性材料である
セラミツクスの試験用として、破壊の原因になる
ような掴み具等をなくして、セラミツクスに好適
なものとし、しかも試験精度が良く、簡易で効率
を良くした試験装置を提供することを目的とす
る。(c) Purpose of the Invention In view of the above points, the present invention provides a material suitable for testing ceramics, which is a brittle material, by eliminating gripping tools that may cause breakage. The purpose is to provide a simple and efficient testing device with good testing accuracy.
(d) 発明の構成
上記目的を達成するための本発明のセラミツク
ス用試験装置は、本体の上面に、間隔を隔てて平
行に配置した一対のローラー状の下部支点を備
え、本体に設けた一対のばね支持台に、下部支点
上に置いた試験片と直交する方向に向けて薄い板
ばねを架設し、この板ばねを介して本体に取付け
た板ばねホルダーに、試験片に負荷を加えるロー
ラー状の上部支点を設けることにより、その上部
支点に、試験片の長手方向の中心線を軸とする回
転運動に対する自由度を持たせると共に、下部支
点に対する平行と負荷位置精度を維持させ、上記
板ばねホルダーの上に、試験片に負荷を加えるた
めの加圧用鋼球を配置したことを特徴とするもの
である。(d) Structure of the Invention In order to achieve the above object, the ceramic testing device of the present invention is provided with a pair of roller-shaped lower supporting points arranged parallel to each other with an interval on the upper surface of the main body. A thin leaf spring is installed on the spring support stand in a direction perpendicular to the test piece placed on the lower fulcrum, and a roller that applies a load to the test piece is attached to a leaf spring holder attached to the main body via this leaf spring. By providing an upper fulcrum with a shape of The feature is that a pressurizing steel ball is placed on the spring holder to apply a load to the test piece.
(e) 発明の作用
本体上における一対の下部支点間に試験片を置
き、加圧用鋼球を通じて試験片に負荷を加えるに
際し、試験片は、上下部支点以外の部分で掴み具
等による拘束を受けることがない。また、上部支
点は、板ばねを介して本体に取付けた板ばねホル
ダーに保持させることにより、回転運動に対する
自由度を持たせると共に、下部支点に対する平行
と負荷位置精度を維持させるようにし、さらに、
加圧用鋼球によつて板ばねホルダーに試験用の負
荷を加えるようにしているので、下部支点と平行
を保ちつつ上部支点から試験片に垂直に負荷が加
えられ、正確で均一な負荷を試験片に加えること
が達成される。(e) Effect of the invention When placing a test piece between a pair of lower support points on the main body and applying a load to the test piece through the pressurizing steel balls, the test piece must be restrained by a gripping tool or the like at a portion other than the upper and lower support points. I never receive it. In addition, the upper fulcrum is held by a leaf spring holder attached to the main body via a leaf spring, so that it has a degree of freedom for rotational movement and maintains parallelism with the lower fulcrum and load position accuracy, and further,
Since the test load is applied to the leaf spring holder using a pressurizing steel ball, the load is applied perpendicularly to the test piece from the upper fulcrum while keeping it parallel to the lower fulcrum, ensuring an accurate and uniform load. Adding to pieces is accomplished.
しかも、上部支点は、下部支点との位置関係を
保証するためのガイドとなる部分を必要とせず、
無接触で摩擦抵抗が加えられることがない。 Moreover, the upper fulcrum does not require a guide part to ensure its positional relationship with the lower fulcrum.
There is no contact and no frictional resistance is applied.
これにより、ぜい性材料であるセラミツクスの
試験用として、破壊の原因になるような掴み具等
をなくし、セラミツクスに好適で、しかも試験精
度が良く、簡易で効率を良くした試験装置を提供
することができる。 As a result, it is possible to provide a simple and efficient testing device for testing ceramics, which is a brittle material, that is suitable for ceramics, has good testing accuracy, and eliminates gripping tools that may cause breakage. be able to.
(f) 発明の実施例
以下、本発明の実施例を図面によつて説明す
る。(f) Examples of the invention Examples of the invention will be described below with reference to the drawings.
第１図ないし第３図に示すように、試験装置の
本体１は、その上面に、間隔を隔てて平行に配置
した一対のローラー状の下部支点４を備えてい
る。試験片９は、これらの一対の平行な下部支点
４上に置かれ、本体１の左右中央の案内溝１０に
より支点４のローラー軸方向の位置決めがなさ
れ、試験片が支点４に対して直角に配置されるよ
うにしている。 As shown in FIGS. 1 to 3, the main body 1 of the test device is provided with a pair of roller-shaped lower support points 4 arranged in parallel with an interval on the upper surface thereof. The test piece 9 is placed on the pair of parallel lower support points 4, and the support points 4 are positioned in the roller axis direction by the guide grooves 10 at the left and right centers of the main body 1, so that the test piece is perpendicular to the support points 4. I'm trying to get it placed.
一方、本体１上に設けた一対のばね支持台７に
は、試験片９と直交する方向に向けて極めて薄い
板ばね６を架設し、この板ばね６を介して本体１
に板ばねホルダー２を取付けている。この板ばね
ホルダー２に固定した一対の加圧子３には、一対
の下部支点４の間において試験片９に接触するロ
ーラー状の上部支点５をそれぞれ設けているが、
この板ばねホルダー２が板ばね６を介してばね支
持台７に取付けられることにより、上部支点５と
下部支点４との平行度および支点相対位置が保証
される。また、板ばねホルダー２の上には、試験
片に負荷を加えるための加圧用鋼球８を配置して
いる。 On the other hand, an extremely thin leaf spring 6 is installed on a pair of spring supports 7 provided on the main body 1 in a direction perpendicular to the test piece 9, and the main body
Leaf spring holder 2 is attached to. The pair of pressurizers 3 fixed to the leaf spring holder 2 are each provided with a roller-shaped upper fulcrum 5 that contacts the test piece 9 between the pair of lower fulcrums 4.
By attaching this leaf spring holder 2 to the spring support base 7 via the leaf spring 6, the parallelism between the upper support 5 and the lower support 4 and the relative positions of the support are ensured. Further, on the leaf spring holder 2, a pressurizing steel ball 8 for applying a load to the test piece is arranged.
試験片９に負荷を加える一対のローラー状の上
部支点５は、極めて薄い板ばね６を用いてばね支
持台７に支持させることにより、試験片の長手方
向の中心線を軸とする回転運動に対して自由度が
与えられているので、下部支点４に対する平行と
負荷位置精度を維持し、試験片上面に密着させる
ことができる。さらに、上部支点５の垂直運動に
対しても摺動部分を持たないため、摩擦抵抗が全
くないという構造上の特徴も持つている。 A pair of roller-shaped upper support points 5 that apply a load to the test piece 9 are supported by a spring support stand 7 using an extremely thin leaf spring 6, so that they can rotate about the longitudinal center line of the test piece. Since a degree of freedom is given to the test piece, it is possible to maintain parallelism to the lower supporting point 4 and load position accuracy, and to bring it into close contact with the upper surface of the test piece. Furthermore, since there is no sliding part with respect to the vertical movement of the upper fulcrum 5, it also has the structural feature that there is no frictional resistance at all.
また、上記加圧用の鋼球８は、４つの上下部支
点面に均一な負荷を与えるために有効なものであ
る。 Further, the pressurizing steel balls 8 are effective in applying a uniform load to the four upper and lower support surfaces.
上記構成を有する試験装置は、本体１上におけ
る一対の下部支点４間に試験片９を置き、加圧用
鋼球８を通じて試験片に負荷を加えるに際し、試
験片９は、上下部支点以外の部分で掴み具等によ
る拘束を受けることがなく、また、上部支点５
は、板ばね６を介して本体１に取付けた板ばねホ
ルダー２に保持させることにより、回転運動に対
する自由度を持たせると共に、下部支点に対する
平行と負荷位置精度を維持させるようにし、さら
に、加圧用鋼球８によつて板ばねホルダー２に試
験用の負荷を加えるようにしているので、下部支
点４と平行を保ちつつ上部支点５から試験片９に
垂直に負荷が加えられ、正確で均一な負荷を試験
片に加えることが達成される。 In the test device having the above configuration, a test piece 9 is placed between a pair of lower supports 4 on the main body 1, and when a load is applied to the test piece through the pressurizing steel balls 8, the test piece 9 is placed between a pair of lower support points 4 on the main body 1. In addition, the upper fulcrum 5
is held in a leaf spring holder 2 attached to the main body 1 via a leaf spring 6, so that it has a degree of freedom for rotational movement, maintains parallelism to the lower fulcrum and load position accuracy, and furthermore, Since the test load is applied to the leaf spring holder 2 by the compression steel ball 8, the load is applied perpendicularly to the test piece 9 from the upper support point 5 while keeping it parallel to the lower support point 4, so that it is accurate and uniform. It is achieved that a similar load is applied to the specimen.
しかも、上部支点５は、下部支点４との位置関
係を保証するためのガイドとなる部分を必要とせ
ず、無接触で摩擦抵抗が加えられることがない。 Furthermore, the upper fulcrum 5 does not require a guide portion to ensure its positional relationship with the lower fulcrum 4, and no frictional resistance is applied without contact.
図示の試験装置を用いてセラミツクスの曲げ試
験を行つた結果、試験片は上部支点間の破断のみ
であり、また破断時の負荷検出も良好であつた。
さらに、上記装置を疲労試験機として用い、低サ
イクルから高サイクルまで、試験片に繰返し負荷
を加える試験を行つたが、各サイクルとも、与え
た負荷に対する検出度も良く、支点内破断で試験
できることが立証された。 As a result of performing a bending test on ceramics using the illustrated testing apparatus, the test piece only broke between the upper supporting points, and load detection at the time of breakage was also good.
Furthermore, using the above device as a fatigue tester, tests were conducted in which repeated loads were applied to the specimen from low cycles to high cycles, and in each cycle, the applied load was well detected, and the test was able to detect fracture within the fulcrum. has been proven.
(g) 発明の効果
本発明によれば、セラミツクス用試験装置にお
いて、試験精度を左右する上下支点の設定位置、
平行度、試験片に対する均一な負荷などについて
の問題点が解消され、セラミツクスの試験結果で
も、支点部での破断がなく、破断荷重の検出でも
非常に低い荷重について検出することができた。(g) Effects of the Invention According to the present invention, in a ceramics testing device, the setting positions of the vertical supports that affect the test accuracy,
Problems with parallelism, uniform load on the test piece, etc. have been resolved, and even in the ceramics test results, there was no fracture at the fulcrum, and even very low loads could be detected in the detection of fracture loads.
第１図は本発明にかかる試験装置の実施例を示
す正面・断面図、第２図は同右側面図、第３図は
同平面図である。
１……本体、２……板ばねホルダー、４……下
部支点、５……上部支点、６……板ばね、７……
ばね支持台、８……加圧用鋼球、９……試験片。
FIG. 1 is a front and sectional view showing an embodiment of a test apparatus according to the present invention, FIG. 2 is a right side view thereof, and FIG. 3 is a plan view thereof. 1... Main body, 2... Leaf spring holder, 4... Lower fulcrum, 5... Upper fulcrum, 6... Leaf spring, 7...
Spring support stand, 8... Steel ball for pressurization, 9... Test piece.
Claims (1)
一対のローラー状の下部支点を備え、 本体に設けた一対のばね支持台に、下部支点上
に置いた試験片と直交する方向に向けて薄い板ば
ねを架設し、 この板ばねを介して本体に取付けた板ばねホル
ダーに、試験片に負荷を加えるローラー状の上部
支点を設けることにより、その上部支点に、試験
片の長手方向の中心線を軸とする回転運動に対す
る自由度を持たせると共に、下部支点に対する平
行と負荷位置精度を維持させ、 上記板ばねホルダーの上に、試験片に負荷を加
えるための加圧用鋼球を配置した、 ことを特徴とするセラミツクス用試験装置。[Claims] 1. A pair of roller-shaped lower supports arranged parallel to each other at intervals are provided on the upper surface of the main body, and a test piece placed on the lower supports is mounted on a pair of spring supports provided on the main body. A thin leaf spring is erected in the orthogonal direction, and a leaf spring holder attached to the main body through this leaf spring is provided with a roller-shaped upper fulcrum that applies a load to the test piece. To provide a degree of freedom for rotational movement around the longitudinal center line of the specimen, and to maintain parallelism to the lower support and load position accuracy, a load was placed on the leaf spring holder to apply a load to the specimen. A testing device for ceramics characterized by having steel balls for pressure arranged therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20905085A JPS6267426A (en) | 1985-09-20 | 1985-09-20 | Ceramic tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20905085A JPS6267426A (en) | 1985-09-20 | 1985-09-20 | Ceramic tester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6267426A JPS6267426A (en) | 1987-03-27 |
| JPH0457212B2 true JPH0457212B2 (en) | 1992-09-10 |
Family
ID=16566419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20905085A Granted JPS6267426A (en) | 1985-09-20 | 1985-09-20 | Ceramic tester |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6267426A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10329012B4 (en) * | 2003-06-30 | 2014-09-25 | F + E Ingenieurgesellschaft mbH für Energieberatung und Festigkeitsanalyse | Wear-free bending change test bench |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5854545U (en) * | 1981-10-09 | 1983-04-13 | トヨタ自動車株式会社 | Bending fracture test equipment |
| JPS5892930A (en) * | 1981-11-30 | 1983-06-02 | Toyota Motor Corp | Tester for rupture in bending |
-
1985
- 1985-09-20 JP JP20905085A patent/JPS6267426A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6267426A (en) | 1987-03-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103091163B (en) | Device for measuring elongation and cross section shrink rate of metal stretching sample through fast clamping | |
| JPS63101732A (en) | Grip of load frame for testing material | |
| CN105891009B (en) | A kind of biology bone small size samples three point bending test device | |
| CN110220773A (en) | A kind of adjustable three, the universal testing machine fixture of four-point bending | |
| CN108344642A (en) | It is a kind of based on gravitational load 3 points of curved creep test devices and test method | |
| CN112033796A (en) | Testing tool and testing method for bending mechanical property of honeycomb sandwich structure | |
| JPS61281935A (en) | Holder | |
| CN205941466U (en) | Universal fixturing of fixed measured workpiece among ultrasonic wave nondestructive test | |
| CN109556971B (en) | Cold spraying sample bending performance test device capable of directly reading bending angle | |
| CN211718018U (en) | Hardness testing machine | |
| CN110108548B (en) | A fixture for microhardness testing | |
| JPH0457212B2 (en) | ||
| Stanley et al. | Mode II crack studies using the" SPATE" technique | |
| CN214096924U (en) | High Precision Digital Vickers Hardness Tester | |
| CN214277677U (en) | Magnetic suction type tool | |
| CN205981921U (en) | Fragility test machine | |
| CN109738468A (en) | A Universal Probe Holder for Sample Positioning in Neutron Diffraction Measurements | |
| CN110421541B (en) | Round bar sample marking device | |
| CN203249944U (en) | Self-tightening double arm bridge fixture | |
| JP2782314B2 (en) | Vice | |
| CN222689152U (en) | Reinforcing bar residual deformation measuring device | |
| JP3304551B2 (en) | Fatigue test equipment for small test pieces | |
| CN208459172U (en) | The cold spraying sample bending property experimental rig of direct-reading bending angle | |
| KR101524039B1 (en) | jig for polishing of thinsheet specimen | |
| CN220783620U (en) | Clamp span adjusting mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |