CN202573515U

CN202573515U - Quick scriber for tensile test piece

Info

Publication number: CN202573515U
Application number: CN 201220157994
Authority: CN
Inventors: 梁磊; 吕楠楠; 潘逸琼; 林建珍
Original assignee: Shanghai University of Electric Power
Current assignee: Shanghai University of Electric Power; University of Shanghai for Science and Technology
Priority date: 2012-04-16
Filing date: 2012-04-16
Publication date: 2012-12-05
Anticipated expiration: 2022-04-16

Abstract

The utility model relates to a quick scriber for a tensile test piece, which consists of an upper semi-circular ring, a connecting rod and a lower semi-circular ring, wherein the inner aperture D of the upper semi-circular ring is equal to that of the lower semi-circular ring, and the connecting line between the centers of the circles of the upper semi-circular ring and the lower semi-circular ring is parallel to the connecting rod; the inner aperture D of the semi-circular rings is equal to the sum of the external diameter d of the tensile test piece and (0.1-0.4mm); and the distance H between the upper plane of the upper semi-circular ring and the lower plane of the lower semi-circular ring is equal to the gauge length L0 of the tensile test piece. The quick scriber is simple in structure, convenient to use, rapid in scribing and smaller in error.

Description

The quick scriber of tensile test specimen

Technical field

The utility model relates to a kind of scriber, particularly a kind of quick chalker that is used for material tensile test.

Background technology

2 diatoms generally need in order to measure percentage elongation, must be drawn in the mechanical performance of test material on the Material Testing Machine when stretching by factory, scientific research institutions and science and engineering universities and colleges on tensile test specimen, the distance between 2 diatoms is called gauge length L ₀, gauge length is 100mm or 50mm normally, and the most standard test specimen is circular test specimen as shown in Figure 1, and most standard test specimen test section outside diameter d is 10 mm.The similar pincers worker line of conventional scriber is tinted in line place earlier, is contained in after the drying on the scriber with the line of cutter dress thing.A standardized like this test specimen otherwise after a little while.And directly manual drawing is promptly unhappy, more inaccurate.

Summary of the invention

The utility model is to the problem of conventional scriber with duration, has proposed the quick scriber of a kind of tensile test specimen, and is simple in structure, can on circular tensile test specimen, mark the device of 2 road gauge length lines fast.

The technical scheme of the utility model is: the quick scriber of a kind of tensile test specimen; By first annulus; Connecting rod is formed with second annulus, and first annulus is identical with second annulus internal orifice dimension D, and first annulus and the parallel and connecting rod of second annulus circle center line connecting; Semicircular ring internal orifice dimension D=tensile test specimen outside diameter d+(0.1～0.4 mm), the distance H of the lower plane of last plane to second annulus of first annulus=tensile test specimen gauge length L ₀

The beneficial effect of the utility model is: the quick scriber of the utility model tensile test specimen, and simple in structure, easy to use, line is quick, and error is less.

Description of drawings

Fig. 1 is the utility model standard specimen sketch map;

Fig. 2 is the quick scriber front view of the utility model tensile test specimen;

Fig. 3 is the quick scriber vertical view of the utility model tensile test specimen.

The specific embodiment

As the quick scriber Front view 2 of tensile test specimen with overlook shown in Figure 3ly, the quick scriber of tensile test specimen is by first annulus 1, connecting rod 2 is formed with second annulus 3; Internal orifice dimension D=10.2 mm of quick scriber semicircular ring, the distance H of the lower plane of the last plane of first annulus 1 to second annulus 3=tensile test specimen gauge length L ₀=100 mm.The semicircular ring endoporus of scriber is stuck on the cylindrical d of tensile test specimen; Range estimation is placed in the middle; The last plane that abuts against first annulus 1 with pen then and the lower plane of second annulus 3 mark 2 road gauge length lines respectively, no matter live width how much, the distance between 2 diatom the inners is gauge length 100mm.

Obviously the quick scriber of tensile test specimen also can be used for the template tensile test specimen; As long as the The midsagittal plane of scriber annulus is close to the plane of template tensile test specimen; Range estimation is placed in the middle, and the lower plane that abuts against last plane and second annulus of first annulus with pen then marks 2 road gauge length lines respectively and gets final product.

Claims

1. quick scriber of tensile test specimen; It is characterized in that by first annulus (1), connecting rod (2) and second annulus (3) are formed; First annulus (1) is identical with second annulus (3) internal orifice dimension D; And first annulus (1) is parallel with second annulus (3) circle center line connecting and connecting rod (2), semicircular ring internal orifice dimension D=tensile test specimen outside diameter d+(0.1～0.4 mm), the distance H of the last plane of first annulus (1) to the lower plane of second annulus (3)=tensile test specimen gauge length L ₀