JP3248756B2 - Specimen clamping device for testing machine and method for clamping test specimen in testing machine - Google Patents
Specimen clamping device for testing machine and method for clamping test specimen in testing machineInfo
- Publication number
- JP3248756B2 JP3248756B2 JP13731792A JP13731792A JP3248756B2 JP 3248756 B2 JP3248756 B2 JP 3248756B2 JP 13731792 A JP13731792 A JP 13731792A JP 13731792 A JP13731792 A JP 13731792A JP 3248756 B2 JP3248756 B2 JP 3248756B2
- Authority
- JP
- Japan
- Prior art keywords
- test piece
- test
- clamping
- holding
- testing machine
- 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 - Fee Related
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、試験片の挾持部に応力
集中が生じないようにした試験機における試験片挾持装
置及び試験機における試験片の挾持方法に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a test piece clamping apparatus for a test machine and a method for clamping test pieces in a test machine, in which stress concentration does not occur at a clamp portion of the test piece .
【０００２】[0002]
【従来の技術】一般に、材料の引張り試験，捻回試験
は、試験片（線材，薄鋼板）の両端をチャックで挾持
し、この試験片に所定の引張り力を付与して該試験片の
引張り強度や捻回強度を測定している。In general, the tensile test of the material, twist test, the test piece (wire, metal sheet) and clamped at both ends with chucking click of the the test piece by applying a predetermined tensile force to the test piece <br/> Measures tensile strength and twist strength.
【０００３】ところで、この種の試験機におけるチャッ
クは対向して配される一対のチャック片から成るチャッ
クが採用され、このチャック片の対向面，即ち試験片の
挾持面は、平坦面に形成される。[0003] By the way, the chuck in this type of testing machine is used.
Click consists et or a pair of chuck pieces which are disposed opposite chat
Click is adopted, <br/> clamping surface of the opposing surfaces, i.e., the test piece of the chuck pieces are formed on the flat surface.
【０００４】[0004]
【発明が解決しようとする課題】ところが、平坦な挾持
面で試験片を挾持し、試験片に引張り力を付与すると、
試験片の挾持部の全域が均等な挾持力で押さえ付けられ
ているので、試験片の挾持部の縁（図４中の領域ａ）に
応力集中が生じ、この挾持部の縁から試験片が破断して
しまうという問題が生じる。However, when a test piece is clamped by a flat clamping surface and a tensile force is applied to the test piece ,
Since the entire area of the clamping portion of the test piece is pressed with equal clamping forces, stress concentration occurs at the edge of the clamping portion of the test piece (region a in FIG. 4), the test piece from the edge of the clamping portion There is a problem of breaking.
【０００５】そこで、この領域ａでの破断を防止すべ
く、図４に図示したように挾持面にゴム14を付設したり
しているが、やはり領域ａでの破断は完全に防止されて
いない。尚、図４中、符号11は試験片、12はチャック、
13はチャック片である。 In order to prevent the breakage in the area a, rubber 14 is provided on the holding surface as shown in FIG. 4, but the breakage in the area a is not completely prevented. . In FIG. 4, reference numeral 11 denotes a test piece, 12 denotes a chuck,
13 is a chuck piece.
【０００６】本発明は、このような問題を解決したもの
で、線材，薄板材などの試験片の破断を確実に阻止し得
る技術を提供するものである。 The present invention solves such a problem, and can reliably prevent breakage of a test piece such as a wire or a thin plate.
Technology to provide
【０００７】[0007]
【課題を解決するための手段】添付図面を参照して本発
明の要旨を説明する。The gist of the present invention will be described with reference to the accompanying drawings.
【０００８】線材，薄板材の特性を試験する試験機にお
ける試験片挾持装置であって、試験片２の基部に当接し
て該試験片２の基部を挾持体８により挾持する第一挾持
部９と、該第一挾持部９に隣接し試験片２を挾持する第
二挾持部10とから成り、この第二挾持部10は、弾性材で
形成され前記試験片２に当接する弾性介在体１及び試験
片２より軟質で且つ前記弾性介在体１の弾性と異なる弾
性を有し前記試験片２に当接する軟質介在体３の双方に
より試験片２を挾持するように構成されていることを特
徴とする試験機における試験片挾持装置に係るものであ
る。 [0008] A testing machine for testing the characteristics of wires and thin plates
A device for holding a test piece in contact with the base of the test piece 2
A first clamp for clamping the base of the test piece 2 with the clamp 8
Part 9 and a second part which is adjacent to the first holding part 9 and holds the test piece 2.
The second holding portion 10 is made of an elastic material.
Elastic interposer 1 formed and abutting on said test piece 2 and test
A bullet that is softer than the piece 2 and different from the elasticity of the elastic intermediate body 1
To both the soft intervening body 3 having the property and abutting on the test piece 2
It is characterized in that it is configured to
It relates to a test piece clamping device in a testing machine.
You.
【０００９】また、請求項１記載の試験機における試験
片挾持装置において、軟質介在体３を試験片２に環状に
設けることで第二挾持部10における試験片２の挾持を弾
性介在体１と軟質介在体３とによる挾持にしたことを特
徴とする試験機における試験片挾持装置に係るものであ
る。 Further , the test in the test machine according to claim 1
In the one-side clamping device, the soft intervening body 3 is annularly formed on the test piece 2.
By providing this, the holding of the test piece 2 at the second holding part 10 is resilient.
It is characterized by being sandwiched between the flexible inclusion 1 and the soft inclusion 3.
It relates to a test piece clamping device in a testing machine.
You.
【００１０】また、請求項１，２いずれか１項に記載の
試験機における試験片挾持装置において、弾性介在体１
として合成ゴムが採用され、軟質介在体３としてハンダ
が採用されていることを特徴とする試験機における試験
片挾持装置に係るものである。 [0010] Further, according to any one of claims 1 and 2,
In the test piece clamping device of the test machine, the elastic interposer 1
Synthetic rubber is used as the
Test in a testing machine characterized by the adoption of
The present invention relates to a clamping device.
【００１１】また、試験片２の基部に当接して該試験片
２の基部を挾持体８により挾持する第一挾持部９と、該
第一挾持部９に隣接し試験片２を挾持する第二挾持部10
とから成り、この第二挾持部10は弾性材で形成した弾性
介在体１で前記試験片２を挾持するように構成された線
材，薄板材の特性を試験する試験機における試験片の挾
持方法であって、試験片２にして前記第二挾持部10に挾
持される部位の一部に前記試験片２より軟質で且つ前記
弾性介在体１の弾性と異なる弾性を有軟質介在体３を環
状に設け、この試験片２を、その基部を前記第一挾持部
９で挾持し、且つ、この基部に隣接する部位を前記弾性
介在体１及び軟質介在体３で挾持することを特徴とする
試験機における試験片の挾持方法に係るものである。 Further , the test piece 2 is brought into contact with the base of the test piece 2 and
A first holding portion 9 for holding the base portion 2 by a holding body 8;
A second holding portion 10 which is adjacent to the first holding portion 9 and holds the test piece 2.
The second holding portion 10 is made of an elastic material
A line configured to sandwich the test piece 2 with the intervening body 1
Of test pieces in a testing machine for testing the properties of
A method of holding the test piece 2 in the second holding portion 10
A part of the portion to be held is softer than the test piece 2 and
Ring soft intermediate 3 with elasticity different from that of elastic intermediate 1
The test piece 2 is placed in the shape of
9 and the part adjacent to this base is
Characterized in that it is sandwiched between the intervening body 1 and the soft intervening body 3
The present invention relates to a method for holding a test piece in a testing machine.
【００１２】[0012]
【作用】実験したところ、弾性介在体１のみでは、領域
ａ（図４参照）での破断率が30％〜60％程度であった
が、弾性介在体１ともに軟質介在体３を付設することで
領域ｂ（図２参照）での破断率が０となった。[Action] was experiments, only by the elastic intermediate member 1, although breakage rate in the region a (see FIG. 4) was about 30% to 60%, by attaching a resilient interposer 1 both soft interposer 3 Thus, the breaking rate in the region b (see FIG. 2) became 0.
【００１３】また、試験片２の挾持力は第一挾持部９で
の挾持が主であるから、該第一挾持部９によって試験片
２の挾持は強固に行える。 The clamping force of the test piece 2 is controlled by the first clamping portion 9.
Of the test piece by the first holding portion 9
2 can be firmly clamped.
【００１４】[0014]
【実施例】図面は、本発明に係る一実施例であり、以下
に説明する。BRIEF DESCRIPTION OF THE DRAWINGS The drawings are one embodiment of the present invention and will be described below.
【００１５】符号５は捻回試験機，符号４は試験片挾持
装置，符号６は第一挾持部９を構成する挾持体８並びに
弾性介在体１及び軟質介在体３を押圧する挾持部材，符
号７は挾持部材６を押圧する蝶ネジである。Reference numeral 5 denotes a torsion tester, and reference numeral 4 denotes a test piece clamping.
The reference numeral 6 designates a holding member 8 and a holding member 8 which constitute a first holding portion 9.
A holding member 7 for pressing the elastic body 1 and the soft body 3, and a reference numeral 7 denotes a thumb screw for pressing the holding member 6 .
【００１６】弾性介在体１としては合成ゴムを採用し
た。As the elastic body 1, synthetic rubber is employed.
【００１７】合成ゴムは図２に図示したように挾持され
る試験片２のＬ 1 域に配設する。The synthetic rubber is disposed in the L 1 region of the test piece 2 is sandwiched as shown in FIG.
【００１８】実験の結果、合成ゴムの代わりとして、弾
性を有する素材であればどのようなものでも弾性介在体
１に採用し得ることが判明した（高分子材料が望まし
い。）。As a result of experiments, it has been found that any material having elasticity can be used for the elastic interposer 1 instead of synthetic rubber (preferably a polymer material).
【００１９】軟質介在体３としては、ハンダを採用し
た。As the soft intermediate 3, solder is employed.
【００２０】ハンダは、図２に図示したようにＬ 2 域に
して、前記合成ゴムと試験片２との間に環状に配設す
る。[0020] Solder is to <br/> the L 2 area as shown in FIG. 2, disposed annularly between the test piece 2 and the synthetic rubber.
【００２１】実験の結果、ハンダの代わりとして、試験
片２より軟質で且つ弾性介在体１の弾性と異なる弾性を
有する素材であればどのようなものでも軟質介在体３に
採用し得ることが判明した。As a result of the experiment, it was found that any material which is softer than the test piece 2 and has elasticity different from the elasticity of the elastic interposer 1 can be used as the soft interposer 3 instead of the solder. did.
【００２２】以上、第二挾持部10における試験片挾持面
（Ｌ 1 域）として合成ゴムを採用し、試験片２にハンダ
を環状に付設し、このハンダ付の試験片２を２枚の挾持
部材６で挾持し、試験片２に所定の荷重をかけ、試験片
２に引張り力を与えたり、捻回力を与えても、試験片２
が挾持部材６の縁（図２中の領域ｂ）で破断することは
生じないことが確認できた。 The test piece holding surface of the second holding portion 10 has been described above.
(L 1 zone) synthetic rubber is employed as the solder is attached to the annular test piece 2, the test piece 2 of the soldering two pinching
Even if a predetermined load is applied to the test piece 2 by applying a predetermined load to the test piece 2 and a tensile force or a twisting force is applied to the test piece 2,
Was not broken at the edge of the holding member 6 (region b in FIG. 2).
【００２３】ハンダを付設せず、合成ゴムのみによる挾
持の場合には、試験片２の該破断がある程度生じたが、
ハンダを付設することで該破断は完全に解消された。In the case where no solder is provided and only synthetic rubber is used, the test piece 2 breaks to some extent.
The break was completely eliminated by adding the solder.
【００２４】尚、実験のデータは、図２における線径１
mmの試験片２の捻回試験において、Ｌ1＝35mm，Ｌ2＝５
mm，Ｌ3＝2.5mm，Ｌ4＝25mmであった。The experimental data is shown in FIG.
In a torsion test of the test piece 2 having a length of 1 mm, L 1 = 35 mm and L 2 = 5
mm, L 3 = 2.5 mm and L 4 = 25 mm.
【００２５】[0025]
【発明の効果】本発明は上述のように構成したから、挾
持部材の縁における応力集中を回避でき、従って、該部
位での試験片の破断を防止できる実用性に秀れた技術と
なる。According to the present invention because configured as described above, 挾
It is a technique excellent in practicality that can avoid stress concentration at the edge of the holding member and can prevent breakage of the test piece at the site.
【図１】本実施例の使用状態を示す一部の正面図であ
る。FIG. 1 is a partial front view showing a use state of the present embodiment.
【図２】本実施例の要部の正断面図である。FIG. 2 is a front sectional view of a main part of the embodiment.
【図３】本実施例の要部の平断面図である。FIG. 3 is a plan sectional view of a main part of the embodiment.
【図４】従来例の説明図である。FIG. 4 is an explanatory diagram of a conventional example.
１ 弾性介在体 ２ 試験片 ３ 軟質介在体８ 挾持体 ９ 第一挾持部10 第二挾持部 1 Elastic Intermediate 2 Test Piece 3 Soft Intermediate 8 Clamp 9 First Clamp 10 Second Clamp
フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) G01N 3/04 G01N 3/00 G01N 3/08 G01N 3/22 ＪＩＣＳＴファイル（ＪＯＩＳ)Continuation of the front page (58) Field surveyed (Int.Cl. 7 , DB name) G01N 3/04 G01N 3/00 G01N 3/08 G01N 3/22 JICST file (JOIS)
Claims (4)
おける試験片挾持装置であって、試験片の基部に当接し
て該試験片の基部を挾持体により挾持する第一挾持部
と、該第一挾持部に隣接し試験片を挾持する第二挾持部
とから成り、この第二挾持部は、弾性材で形成され前記
試験片に当接する弾性介在体及び試験片より軟質で且つ
前記弾性介在体の弾性と異なる弾性を有し前記試験片に
当接する軟質介在体の双方により試験片を挾持するよう
に構成されていることを特徴とする試験機における試験
片挾持装置。 1. A testing machine for testing characteristics of wires and thin plates.
A test piece clamping device for contacting the base of a test piece.
And a first holding portion for holding a base of the test piece by a holding body.
And a second holding portion adjacent to the first holding portion for holding the test piece.
The second holding portion is formed of an elastic material, and
The elastic interposer abutting on the test piece and softer than the test piece and
The test piece has an elasticity different from the elasticity of the elastic body.
Hold the test piece with both soft abutments
Test in a testing machine characterized by being configured as follows:
Single clamping device.
持装置において、軟質介在体を試験片に環状に設けるこ
とで第二挾持部における試験片の挾持を弾性介在体と軟
質介在体とによる挾持にしたことを特徴とする試験機に
おける試験片挾持装置。 2. A test piece clamp in the test machine according to claim 1.
In the holding device, it is necessary to provide a soft
The test specimen is clamped at the second clamping part by the elastic
Testing machine characterized by being sandwiched by porous media
For holding test pieces.
機における試験片挾持装置において、弾性介在体として
合成ゴムが採用され、軟質介在体としてハンダが採用さ
れていることを特徴とする試験機における試験片挾持装
置。 3. The test according to claim 1, wherein
As an elastic interposer in the test piece clamping device of the machine
Synthetic rubber is used, and solder is used as a soft intermediate.
Specimen clamping device for testing machine
Place.
を挾持体により挾持する第一挾持部と、該第一挾持部に
隣接し試験片を挾持する第二挾持部とから成り、この第
二挾持部は弾性材で形成した弾性介在体で前記試験片を
挾持するように構成された線材，薄板材の特性を試験す
る試験機における試験片の挾持方法であって、試験片に
して前記第二挾持部に挾持される部位の一部に前記試験
片より軟質で且つ前記弾性介在体の弾性と異なる弾性を
有軟する質介在体を環状に設け、この試験片を、その基
部を前記第一挾持部で挾持し、且つ、この基部に隣接す
る部位を前記弾性介在体及び軟質介在体で挾持すること
を特徴とする試験機における試験片の挾持方法。 4. The base of the test piece, which abuts against the base of the test piece.
And a first holding portion for holding the
And a second clamping portion for clamping the test piece adjacent thereto.
(2) The holding part is an elastic interposed member made of elastic material,
Test the characteristics of wire and sheet material configured to hold
Is a method of clamping test pieces in a test machine
Then, a part of the part to be clamped by the second clamping part
Elasticity that is softer than the piece and different from the elasticity of the elastic body
An annular soft intermediary body is provided, and this test piece is
Part is clamped by the first clamping part and adjacent to the base part.
Between the elastic body and the soft body
A method for clamping a test piece in a testing machine, characterized by the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13731792A JP3248756B2 (en) | 1992-05-28 | 1992-05-28 | Specimen clamping device for testing machine and method for clamping test specimen in testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13731792A JP3248756B2 (en) | 1992-05-28 | 1992-05-28 | Specimen clamping device for testing machine and method for clamping test specimen in testing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05332903A JPH05332903A (en) | 1993-12-17 |
| JP3248756B2 true JP3248756B2 (en) | 2002-01-21 |
Family
ID=15195860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13731792A Expired - Fee Related JP3248756B2 (en) | 1992-05-28 | 1992-05-28 | Specimen clamping device for testing machine and method for clamping test specimen in testing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3248756B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181443A (en) * | 2015-07-15 | 2015-12-23 | 国家电网公司 | Horizontal tension tester's fixture for round wire concentric-lay-stranded overhead conductors |
-
1992
- 1992-05-28 JP JP13731792A patent/JP3248756B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05332903A (en) | 1993-12-17 |
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| R250 | Receipt of annual fees |
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| R250 | Receipt of annual fees |
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| R250 | Receipt of annual fees |
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| FPAY | Renewal fee payment (event date is renewal date of database) |
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| FPAY | Renewal fee payment (event date is renewal date of database) |
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| S531 | Written request for registration of change of domicile |
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| S533 | Written request for registration of change of name |
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| R350 | Written notification of registration of transfer |
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| FPAY | Renewal fee payment (event date is renewal date of database) |
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| LAPS | Cancellation because of no payment of annual fees |