JPS6265539U

JPS6265539U -

Info

Publication number: JPS6265539U
Application number: JP15687585U
Authority: JP
Priority date: 1985-10-14
Filing date: 1985-10-14
Publication date: 1987-04-23

Description

[Brief explanation of the drawing]

第１図は試験機にとりつけた本考案の伸び検出
装置の要部断面図、第２図は第１図とは異なる例
の本考案の伸び検出装置の要部斜視図、第３図は
第２図のＶ溝ブロツクの形状概念図、第４図は本
考案の装置を用いて行なつた疲労試験における試
験片の変位量と検出器の出力との関係線図、第５
図は同じくヒステリシスループの線図、第６図は
従来装置のとりつけ状態を示す要部断面図、第７
図は同じく検出器と試験片の接触状態を示す部分
的斜視図である。１，１１……試験片、４，１５……伸び検出器
、７，７ａ，１６，１６ａ……検出片、８，１７
……連結体、９，９ａ……ひずみゲージ、１０，
１０ａ，２４，２４ａ……コイルスプリング、１
２……チヤツク、１３……クロスヘツド、１８，
２２，２２ａ，２３，２３ａ，３６……ピン、１
９，２１……固定アーム、２０……吊合ばね、２
５，２５ａ……スライド板、２６，２７……固定
棒、２８，２８ａ……固定具、２９，２９ａ……
Ｖ溝ブロツク、３０……上部支持板、３１……下
部支持板、３２，３２ａ……スリツト、３３……
マグネツトホルダー、３４……支持棒、３５……
補助スプリング。 Fig. 1 is a cross-sectional view of the main parts of the elongation detection device of the present invention attached to a testing machine, Fig. 2 is a perspective view of the main parts of the elongation detection device of the present invention, which is a different example from Fig. 1, and Fig. Figure 2 is a conceptual diagram of the shape of the V-groove block, Figure 4 is a relationship diagram between the amount of displacement of the test piece and the output of the detector in a fatigue test conducted using the device of the present invention, and Figure 5
The figure is also a diagram of the hysteresis loop, Figure 6 is a sectional view of the main part showing the installation state of the conventional device, and Figure 7 is a diagram of the hysteresis loop.
The figure is also a partial perspective view showing the state of contact between the detector and the test piece. 1, 11... Test piece, 4, 15... Elongation detector, 7, 7a, 16, 16a... Detection piece, 8, 17
...Connection body, 9, 9a...Strain gauge, 10,
10a, 24, 24a...Coil spring, 1
2...Chick, 13...Crosshead, 18,
22, 22a, 23, 23a, 36...pin, 1
9, 21... Fixed arm, 20... Suspension spring, 2
5, 25a...Slide plate, 26, 27...Fixing rod, 28, 28a...Fixing tool, 29, 29a...
V-groove block, 30... Upper support plate, 31... Lower support plate, 32, 32a... Slit, 33...
Magnetic holder, 34...Support rod, 35...
Auxiliary spring.

Claims

[Scope of Claim for Utility Model Registration] (1) Two fixed arms arranged parallel to a test piece whose ends are fixed to the chuck of a testing machine and facing each other at a predetermined interval on both sides of the test piece; Two fixing bars are fixed to the crosshead of the testing machine and placed parallel to each fixing arm, with one end of each fixing arm and the other end of each fixing bar slidable in a direction perpendicular to the length of the specimen. Two slide plates are inserted and have mutually parallel slits, and the tip edges of both slide plates touch perpendicularly to the length direction of the test piece, and the other ends of two mutually parallel detection pieces with strain gauges attached are fixed. The elongation detector is fixed by a connecting body at intervals of What is claimed is: 1. An elongation detection device comprising: a plurality of coil springs that provide a fixed arm; (2) Utility model registration The elongation detection device according to claim 1, characterized in that a pin passing through the connecting body and the fixing arm is used as the fixing means. (3) Utility model registration In the device described in claim 1, the fixing arm end is attached to an upper support plate that connects the side ends of the opening surfaces of two V-groove blocks that support the elongation detector from the side as a fixing means. A stretch detection device characterized by fastening.