JPH0466838A - Cutter for preliminary introduction of crack of test piece of synthetic resin - Google Patents
Cutter for preliminary introduction of crack of test piece of synthetic resinInfo
- Publication number
- JPH0466838A JPH0466838A JP17954390A JP17954390A JPH0466838A JP H0466838 A JPH0466838 A JP H0466838A JP 17954390 A JP17954390 A JP 17954390A JP 17954390 A JP17954390 A JP 17954390A JP H0466838 A JPH0466838 A JP H0466838A
- Authority
- JP
- Japan
- Prior art keywords
- test piece
- crack
- recessed part
- cut
- movement
- 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.)
- Pending
Links
- 229920003002 synthetic resin Polymers 0.000 title abstract description 7
- 239000000057 synthetic resin Substances 0.000 title abstract description 7
- 238000005520 cutting process Methods 0.000 claims abstract description 20
- 229920005989 resin Polymers 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 238000007656 fracture toughness test Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 6
- 238000003754 machining Methods 0.000 abstract description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 6
- 238000003825 pressing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は合成樹脂素材の破壊靭性試験を行うに際して、
合成樹脂の試験片に予じめ亀裂を形成する切截機に関す
る。[Detailed Description of the Invention] (Industrial Application Field) The present invention provides the following features when performing fracture toughness tests on synthetic resin materials:
This invention relates to a cutting machine that forms cracks in advance in synthetic resin test pieces.
（従来の技術）
合成樹脂素材の性状を知るために破壊靭性試験を行う場
合には予じめ亀裂を形成した試験片を用いるが、該亀裂
は試験片に対し直接繊細な亀裂を形成することは困難な
ため、第５図で示すように先づ試験片ａの所定位置にや
や広幅の凹部すを機械加工により形成した後、該凹部す
の底部に亀裂Ｃを形成し、亀裂Ｃの加工は刃物を該凹部
す底部に当てハンマーで打込む手動作によって行ってい
た。(Prior art) When performing a fracture toughness test to find out the properties of synthetic resin materials, a test piece with cracks formed in advance is used, but the cracks do not form delicate cracks directly on the test piece. Since this is difficult, as shown in Fig. 5, a slightly wide recess is first formed at a predetermined position on the test piece a by machining, and then a crack C is formed at the bottom of the recess, and the crack C is machined. This was done manually by placing a knife against the bottom of the recess and driving it in with a hammer.
（発明が解決しようとする課８）
上記のように凹部すと亀裂Ｃをハンマーの打込みによる
動作で非連続的に行うことは甚だ非能率的であり、亀裂
の形状と寸法を正確に形成することは困難であるばかり
でなく破壊靭性試験の信頼性を低下させていた。(Issue 8 to be solved by the invention) It is extremely inefficient to form the crack C in the concave part discontinuously by driving the recess with a hammer as described above, and it is difficult to accurately form the shape and size of the crack. This was not only difficult, but also reduced the reliability of the fracture toughness test.
（課題を解決するための手段）
本発明は上記従来の手作業による不都合を排し、能率的
で作動確実な機能的手段を持っ切截機を提供するもので
、該予亀裂導入用切截機は、試験片を固定して直線的に
移動する支持台の進行方向の前方に、支持台上の試験片
に下縁を接して上下位置を可変調節し得るようにしたや
や広幅の刄縁を有する回転刄輪を設け、更にその前方に
位置させて直線状のみ縁を支持台の進行方向に対し傾斜
させ且つ進行方向と直角方向に移動調節し得る薄刃カッ
ターを固設したことを特徴とする。(Means for Solving the Problems) The present invention eliminates the above-mentioned inconveniences of conventional manual work and provides a cutting machine having efficient and reliable functional means. The machine has a slightly wide edge in front of the support stand that fixes the test piece and moves it linearly in the direction of movement, and whose lower edge touches the test piece on the support stand so that the vertical position can be variably adjusted. The present invention is characterized in that a thin blade cutter is provided in front of the rotary wheel and has a linear chisel edge inclined with respect to the direction of movement of the support base and can be moved and adjusted in a direction perpendicular to the direction of movement of the support base. do.
（作 用）
本発明による予亀裂導入用切截機は、実施例の図面で示
すように、送り螺杵（３）の回動で、これに螺挿した支
持台（４）を前進させて、該支持台 り４）上に固定し
た合成樹脂の素材試験片ａ（以下試験片ａとする）を前
方に移動させることにより、先づ回転刄輪（９）との衝
合により試験片ａの所定位置に凹部すを切削し、次いて
更に試験片ａの移動によって傾斜させた薄刃カッター（
１７）との衝合により前記の凹部すの底部に連続する亀
裂Ｃを切截して亀裂導入加工を終るもので、回転刄輪（
９）は試験片ａに対する高さ位置を調節することにより
所望深さでやや幅の広い凹部すの切削を施し得られ、又
薄刃カッター （１７）は試験片ａの進行方向と直角方
向に移動調節することによりすでに切削を終った凹部す
の幅中心位置を設定して亀裂Ｃを施し得るようにした。(Function) As shown in the drawings of the embodiment, the cutting machine for introducing a pre-crack according to the present invention advances the support base (4) screwed into the feed screw (3) by rotating the feed screw (3). By moving the synthetic resin material test piece a (hereinafter referred to as test piece a) fixed on the support stand 4) forward, the test piece a first collides with the rotating wheel (9). Cut a recess at a predetermined position, and then use a thin blade cutter (
17), the crack C that continues at the bottom of the recess is cut out and the crack introduction process is completed.
9) can cut a slightly wide concave part to a desired depth by adjusting the height position relative to the specimen a, and the thin blade cutter (17) moves in a direction perpendicular to the traveling direction of the specimen a. By adjusting the width center position of the recess which has already been cut, the crack C can be created.
以上の切削加工を終った時点で支持台（４）上から試験
片ａを取出して所定の破壊靭性試験に供し、支持台（４
）は始動位置に復帰させて次の切削加工に備える。When the above cutting process was completed, test piece a was taken out from the support stand (4) and subjected to a prescribed fracture toughness test.
) is returned to the starting position to prepare for the next cutting process.
（実施例）
本発明による予亀裂導入用切截機の実施例を図面につい
て説明する。(Example) An example of a cutting machine for introducing a pre-crack according to the present invention will be described with reference to the drawings.
機台 （１）上に、モータ （２）で駆動回転する送り
螺杵（３）を架設し、該螺杵（３）に螺挿した支持台
（４）を、該送り螺杵（３）の回動により、該螺杵（３
）と平行に機台（］）上に設けた案内軌条（５） （５
）に従って直線状に移動させ得るようにした。A feed screw (3) driven and rotated by a motor (2) is installed on the machine base (1), and a support base is screwed into the screw screw (3).
(4) by rotating the feed screw (3).
) on the machine base (]) parallel to the guide rail (5) (5
) so that it can be moved in a straight line.
支持台 （４）上には試験片ａを受部材（６）と抑圧材
（７）との間に挾持させ、押圧材（７）を手動の蝶片（
８）で押圧することにより試験片ａを不動として支持台
（４）上に固定し、前記支持台（４）の移動と共に試験
片ａを直線状に移動させるようにした。On the support stand (4), the test piece a is held between the receiving member (6) and the pressing member (7), and the pressing member (7) is manually operated by the butterfly piece (
8), the test piece a was immovably fixed on the support stand (4), and as the support stand (4) moved, the test piece a was moved linearly.
該試験片ａの矢示の移動方向の前方に所定の高さ位置で
回転刄輪（９）を軸架してモータ（１０）からベルト伝
動機構（１１）を介して回転させるようにした。A rotary wheel (9) was mounted on a shaft at a predetermined height in front of the test piece a in the direction of movement indicated by the arrow, and was rotated by a motor (10) via a belt transmission mechanism (11).
該回転刄輪（９）は例えばダイヤモンドカッター或いは
周縁を鋸歯形刃とした刃幅その他合成樹脂素材の切削可
能な形式の回転刄輪を使用し、その刄縁幅は樹脂素材の
切削を強力的確にするためやや厚手のものとした。The rotary wheel (9) is made of a diamond cutter or a rotary wheel with a serrated peripheral edge and a blade width capable of cutting synthetic resin materials, and the width of the cutting edge is such that it can cut the resin material powerfully and reliably. I made it a little thicker to make it more durable.
又、この回転刄輪（９）は試験片ａを切削する凹部すの
深さを調節し得るように移動する試験片ａに対して設置
高さを加減できるよう設けた。Further, this rotary wheel (9) was provided so that the installation height could be adjusted with respect to the moving test piece a so that the depth of the recess for cutting the test piece a could be adjusted.
即ち回転刄輪（９）を架設した基台（１２）とモータ（
１０）は機台 （１）上で一側を軸片（１４）で起伏さ
せ得る可動台板（１３）上に設置し、可動台板（１３）
の遊動端側を機台（１）に軸支した揺動部材（Ｊ５）に
挿嵌して、該挿通部における可動台板（１３）の上下面
に夫々締付はナツト（１Ｂ）（ｌｅ）を施こし、該締付
はナラ） （１６）（１６）の螺回によって可動台板（
１３）を前記軸片（１４）で起伏させて固定することに
より回転刄輪（９）の高さ位置を調節し得るようにした
。That is, the base (12) on which the rotary wheel (9) is installed and the motor (
10) is installed on a movable base plate (13) that can be raised and lowered on one side with a shaft piece (14) on the machine base (1), and the movable base plate (13)
The floating end side of the movable base plate (13) is inserted into the swinging member (J5) which is pivotally supported on the machine base (1), and the nuts (1B) (le ), and tighten the screws (16) (16) to tighten the movable base plate (
13) is raised and lowered by the shaft piece (14) and fixed, thereby making it possible to adjust the height position of the rotary wheel (9).
移動する試験片ａの前方における上記回転刄輪 （９）
の更に前方位置に、試験片ａに対する亀裂Ｃを形成させ
る薄刃カッター（１７〉を設ける。The above-mentioned rotating wheel in front of the moving test piece a (9)
A thin-blade cutter (17) for forming a crack C in the test specimen a is provided at a further forward position.
該薄刃カッター（１７）は略矩形で一側縁を直線状の薄
刄縁 （１７ａ）とし、可動部材（１８）の前面突部
（１８ａ）に不動に結着し、該可動部材（１８）を回動
することにより薄刃カッター（Ｊ７）の直線状薄刄縁（
１７ａ）を試験片ａの進行方向に対して適度に傾斜させ
て固定し、該薄刃カッター（１７）に対し試験片ａを押
しつける作動で薄刄縁（１７ａ）で試験片ａに亀裂状の
切截が行われるようにし、また薄刃カッター（１７）の
傾斜度を変えることにより薄刄縁 （１７ａ）の下端位
置を上下動させて亀裂状切削の深さを加減できるように
した。The thin blade cutter (17) has a substantially rectangular shape with a straight thin edge (17a) on one side, and a protrusion on the front surface of the movable member (18).
(18a), and by rotating the movable member (18), the straight thin edge (
17a) is fixed at an appropriate inclination with respect to the traveling direction of the test piece a, and by pressing the test piece a against the thin blade cutter (17), a crack-shaped cut is made in the test piece a with the thin edge (17a). By changing the inclination of the thin blade cutter (17), the lower end position of the thin edge (17a) can be moved up and down to adjust the depth of the crack-like cutting.
尚、薄刃カッター（１７）の傾斜度の調節は、該カッタ
ー（１７）を結着した可動部材（１８）を架台（１９）
に対し、数個所に設けた弧状孔（２０）によって締付は
蝶片（２１）で取付けることにより可動部材（１８）を
該弧状孔（２０）で回動して所望の位置で蝶片（２１）
を締付ければよい。The inclination of the thin blade cutter (17) can be adjusted by moving the movable member (18) to which the cutter (17) is attached to the stand (19).
On the other hand, the movable member (18) is rotated by the arcuate holes (20) by attaching the butterfly pieces (21) to the arcuate holes (20) provided at several locations, and the butterfly pieces (20) are tightened at the desired position. 21)
All you have to do is tighten it.
更に前記架台（１９）は機台 （１）に固設した台座（
２２）に対し送り螺杵（２３）の回動により試験片ａの
進行方向に対し直角方向に移動させ得るように蟻溝（２
５）で組合せた可動台（２４）に取付けて、可動台（２
４）の移動によって薄刃カッター（１７）を試験片ａに
加工した前記凹部すの切削幅の中心に位置させ得るよう
にした。Further, the pedestal (19) is a pedestal (1) fixed to the machine pedestal (1).
22), a dovetail groove (2
Attach it to the movable base (24) assembled in step 5) and attach it to the movable base (24).
By the movement of step 4), the thin blade cutter (17) could be positioned at the center of the cutting width of the concave portion machined into the test piece a.
また、図示する実施例において薄刃カッター（１７）を
取付けた架台（１９）は、可動台（２４）に対し、送り
螺杵（２６）の回動により上下動させるように蟻溝（２
７）で組合させ、その上下動によっても薄刃カッター（
１７）の高さ位置を変動させて亀裂Ｃの切削深さを加減
できるようにした。Further, in the illustrated embodiment, the pedestal (19) to which the thin blade cutter (17) is attached is moved up and down by the dovetail groove (2) with respect to the movable base (24) by rotation of the feed screw (26).
7), and the thin blade cutter (
17) The cutting depth of the crack C can be adjusted by varying the height position.
（発明の効果）
本発明によるときは、直線状に移動する支持台上に試験
片を不動に固定するのみて、支持台の移動によって移動
方向の前方に設置した回動刃幅により試験片に対しやや
幅広の凹部を所定位置に切削形成し、続いて試験片は前
方の直線状の薄刄縁を傾斜させた薄刃カッターに衝合さ
せることにより前記切削凹部の中心位置に該凹部の底面
中心に連続して亀裂状の切削を施こすことができ、試験
片に対する破壊靭性試験の前処置としての亀裂を正確に
、しかも機能的に加工形成し得るもので、人手による労
力を排除し的確に予亀裂の導入を安易にした効果を有す
る。(Effects of the Invention) According to the present invention, the test piece is fixed immovably on a support stand that moves linearly, and as the support stand moves, the width of the rotary blade installed in front of the movement direction is used to move the test piece. On the other hand, a slightly wider recess is cut at a predetermined position, and then the test specimen is placed at the center of the cutting recess by abutting the front linear thin edge against an inclined thin blade cutter. It is possible to perform continuous crack-shaped cutting on specimens, and it is possible to accurately and functionally process and form cracks as a pretreatment for fracture toughness tests on specimens, eliminating manual labor and accurately. This has the effect of facilitating the introduction of pre-cracks.
図面は本発明の実施例を示すもので、第１図は平面図、
第２図は正面図、第３図は第１図の■−■線截線側断側
面図４図は同ＩＶ−ＩＶ線截断側面図、第５図は予亀裂
を施した試験片の斜視図である。
ａ・・・試験片
（４）・・・支持台
（９）・・・回転刄輪
（１７）・・・薄刃カッタ
（１７ａ）・・・直線状刄縁
第３図
外３名
第４図The drawings show an embodiment of the present invention, and FIG. 1 is a plan view;
Figure 2 is a front view, Figure 3 is a cross-sectional side view taken along the line ■-■ in Figure 1, Figure 4 is a side view taken along the IV-IV line in Figure 1, and Figure 5 is a perspective view of a pre-cracked test piece. It is a diagram. a...Test piece (4)...Support stand (9)...Rotating wheel (17)...Thin blade cutter (17a)...Straight edge 3 people outside of Figure 3 Figure 4
Claims (1)
前方に、支持台上の試験片に下縁を接して上下位置を可
変調節し得るようにしたやや広幅の刄縁を有する回転刄
輪を設け、更にその前方に位置させて直線状の刄縁を支
持台の進行方向に対し傾斜させ且つ進行方向と直角方向
に移動調節し得る薄刃カッターを固設したことを特徴と
する合成樹脂試験片の予亀裂導入用切截機。A rotary wheel with a slightly wide edge in front of the support stand that fixes the test piece and moves it linearly in the direction of movement, the lower edge of which touches the test piece on the support stand so that the vertical position can be variably adjusted. A composition characterized in that a hollow wheel is provided, and a thin-blade cutter is fixedly positioned in front of the hollow wheel, the linear hollow edge of which is inclined with respect to the direction of movement of the support base, and whose movement can be adjusted in a direction perpendicular to the direction of movement. Cutting machine for introducing pre-crack in resin test pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17954390A JPH0466838A (en) | 1990-07-09 | 1990-07-09 | Cutter for preliminary introduction of crack of test piece of synthetic resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17954390A JPH0466838A (en) | 1990-07-09 | 1990-07-09 | Cutter for preliminary introduction of crack of test piece of synthetic resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0466838A true JPH0466838A (en) | 1992-03-03 |
Family
ID=16067590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17954390A Pending JPH0466838A (en) | 1990-07-09 | 1990-07-09 | Cutter for preliminary introduction of crack of test piece of synthetic resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0466838A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001018527A1 (en) * | 1999-09-07 | 2001-03-15 | Japan As Represented By Director General Of National Agriculture Research Center,Ministry Of Agriculture, Forestry And Fisheries | Method and device for processing material |
| CN110006757A (en) * | 2019-04-08 | 2019-07-12 | 山东科技大学 | Coal measures fault development simulation test device and forward and inverse fault simulation test method |
-
1990
- 1990-07-09 JP JP17954390A patent/JPH0466838A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001018527A1 (en) * | 1999-09-07 | 2001-03-15 | Japan As Represented By Director General Of National Agriculture Research Center,Ministry Of Agriculture, Forestry And Fisheries | Method and device for processing material |
| CN110006757A (en) * | 2019-04-08 | 2019-07-12 | 山东科技大学 | Coal measures fault development simulation test device and forward and inverse fault simulation test method |
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