CN203286949U - Auxiliary measurement tool - Google Patents

Auxiliary measurement tool Download PDF

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Publication number
CN203286949U
CN203286949U CN2013202563134U CN201320256313U CN203286949U CN 203286949 U CN203286949 U CN 203286949U CN 2013202563134 U CN2013202563134 U CN 2013202563134U CN 201320256313 U CN201320256313 U CN 201320256313U CN 203286949 U CN203286949 U CN 203286949U
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CN
China
Prior art keywords
fixture
clamp
fixed orifice
cavity
bolt fixed
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CN2013202563134U
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Chinese (zh)
Inventor
梁明华
李娜
王亚龙
蔺卫平
张华�
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China National Petroleum Corp
CNPC Tubular Goods Research Institute
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China National Petroleum Corp
CNPC Tubular Goods Research Institute
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Priority to CN2013202563134U priority Critical patent/CN203286949U/en
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Abstract

The utility model discloses an auxiliary measurement tool, which belongs to the technical field of stress detection for steel and iron materials. The tool comprises a first clamp, a second clamp and location bolts, wherein a plurality of equal-length bolt fixation holes are formed in the first clamp, and the centre of each bolt fixation hole is located on the same horizontal axis; a cavity is formed in the second clamp, and one bolt fixation hole penetrating through the cavity is formed in the second clamp; the bolt fixation holes in the first clamp and the second clamp are mutually corresponding; the first clamp is embedded in the cavity and screwed with the second clamp via the bolt fixation holes and the location bolts; and grooves are formed in the bottom ends of the first clamp and the second clamp respectively. The tool disclosed by the utility model is capable of rapidly keeping the same horizontal axis under magnet attraction, thus increasing the matching connection speed of a fracture test sample, reducing errors during a measurement process for a percentage elongation after fracture, and reducing the operation difficulty of a measurement for a gauge length after fracture; and the tool is convenient and fast to use, and capable of effectively increasing test efficiency.

Description

A kind of supplemental measurement tool
Technical field
The utility model relates to ferrous materials stress detection field, particularly a kind of supplemental measurement tool that is applicable to the bar-shaped tensile sample elongation after fracture mensuration of iron and steel.
Background technology
Elongation after fracture is one of the most basic mechanical performance index of ferrous materials, is used for the front ability that irreversible deformation set occurs of reflection ferrous materials fracture.In the test of the bar-shaped tensile sample elongation after fracture of iron and steel, need to determine the original gauge length L of sample before experiment 0Reach and measure the gauge length L that has no progeny u, pass through afterwards formula Calculate the elongation after fracture of sample.Therefore, the gauge length L that has no progeny uOrder of accuarcy directly affected the accuracy of the length growth rate of having no progeny.
Standard code should carefully connect the part of sample fracture its axis is on same straight line, and takes special measure to guarantee that sample fracture part suitably measures the sample gauge length L that has no progeny after contact uAt the gauge length L that has no progeny uThe actual measurement process in, because sample fracture is two parts, under the impact of self gravitation, two parts on the same level axis, make final measurement cause error than difficulty.As shown in Figure 1, the length sum that the actual gauge length of having no progeny of sample is line segment AB and line segment BC, and actual measured value due to sample two parts not on the same level axis, making the gauge length value of having no progeny of measurement is the length of line segment AC, the former is greater than the latter's measurement result, and this has just caused the error in calculating.In addition, in operating process, because sample is the pole shape, easily roll on the table, be difficult for being fixed on plane, therefore make two parts sample be in the operation easier of same level axis larger, time-consuming longer, work efficiency is lower, the bulk velocity of the whole tension test of impact.
The utility model content
Easily produce error in order to solve the existing ferrous materials gauge length measuring process of having no progeny, operation easier reaches greatly the problems such as inefficiency, the utility model provides a kind of supplemental measurement tool that the bar-shaped tensile sample elongation after fracture of iron and steel is measured that is applicable to, and comprises the first fixture, the second fixture and bolt; Be provided with the bolt fixed orifice of a plurality of equal lengths on described the first fixture, the center of each bolt fixed orifice is on the same level axis; Described the second fixture inside is provided with cavity, is provided with a bolt fixed orifice that runs through described cavity on described the second fixture; Bolt fixed orifice on described the first fixture and the second fixture is mutually corresponding; Described the first fixture is embedded into the inside of described cavity, and by described bolt fixed orifice and bolt and described the second fixture, is spirally connected; The bottom of described the first fixture and the second fixture is respectively arranged with groove.
Further, described the first fixture and the second fixture are respectively by orthogonal horizontal ends and vertical being integrally formed of end structure; Be provided with the bolt fixed orifice of a plurality of equal lengths on the horizontal ends of described the first fixture, the center of each bolt fixed orifice is on the same level axis; The horizontal ends inside of described the second fixture is provided with cavity, is provided with a bolt fixed orifice that runs through described cavity on the horizontal ends of described the second fixture; Bolt fixed orifice on the horizontal ends of described the first fixture and the second fixture is mutually corresponding; The horizontal ends of described the first fixture is embedded into the inside of described cavity, and by the horizontal ends of described bolt fixed orifice and bolt and described the second fixture, is spirally connected; The bottom of the vertical end of described the first fixture and the second fixture is respectively arranged with groove.
Further, described groove is " V " type groove, and described " V " type groove is on the same level axis.
Further, the angle at the degree of depth of described " V " type groove and " V " type angle equates respectively.
Supplemental measurement tool of the present utility model, overcome the deficiency that sample fracture partly is difficult for being in the same level axis, can keep rapidly the same level axis under magnet adsorption, improved the speed that connects of fracture sample, error in the elongation measurement process has reduced to have no progeny, reduced the operation easier of measuring the gauge length of having no progeny, convenient to use, effectively improved test efficiency.
Description of drawings
Fig. 1 is the prior art ferrous materials sample gauge length measuring principle schematic diagram of having no progeny;
Fig. 2 is front view and the right view of the first fixture of the utility model embodiment;
Fig. 3 is front view and the right view of the second fixture of the utility model embodiment;
Fig. 4 is the outer shape schematic diagram of the bolt of the utility model embodiment;
Fig. 5 is the use view of the utility model embodiment supplemental measurement tool.
Embodiment
Below in conjunction with drawings and Examples, technical solutions of the utility model are further described.
Referring to Fig. 2-Fig. 5, the utility model embodiment provides a kind of supplemental measurement tool that the bar-shaped tensile sample elongation after fracture of iron and steel is measured that is applicable to, and this supplemental measurement tool comprises the first fixture 1, the second fixture 2 and bolt 3.Wherein, the first fixture 1 is by orthogonal horizontal ends 11 and vertical end 12 being integrally formed structures; The second fixture 2 is also by orthogonal horizontal ends 21 and vertical end 22 being integrally formed structures; Be provided with the bolt fixed orifice 13 of a plurality of equal lengths on the horizontal ends 11 of the first fixture, each bolt fixed orifice 13De center is on the same level axis; Horizontal ends 21 inside of the second fixture are provided with on the horizontal ends 21 of cavity 23, the second fixtures and are provided with a bolt fixed orifice 24 that runs through cavity 23.In the present embodiment, be provided with 4 bolt fixed orifices 13 on horizontal ends 11, can select according to the different length of tensile sample the screw fixed orifice 13 of diverse location, to meet fixing the different length tensile sample; The quantity of screw fixed orifice 13, can arrange according to the requirement of actual measurement.
For the two parts that guarantee sample fracture can be on the same level axis, the length that need to make vertical end 12 is equal in length with vertical end 22, and also needs to make bolt fixed orifice 13 mutual corresponding with bolt fixed orifice 24.Horizontal ends 11 is embedded into the inside of cavity 23, and the bolt fixed orifice 13 by mutual correspondence, 24 and bolt 3 be spirally connected with horizontal ends 21.Horizontal ends 11, vertically hold 12, horizontal ends 21 and vertically hold 22 to be the ferromagnetic material with permanent magnetism, can make the effect of the firm and absorption Steel material sample of fixture syndeton, guaranteed the accuracy of measuring.
For the fixing sample of pole shape, vertical end 12 and vertically the bottom of end 22 be respectively arranged with " V " type groove, two " V " type grooves are on the same level axis.Further,, for the two parts that guarantee sample fracture can be on the same level axis, also need the degree of depth of two " V " type grooves and the angle at " V " type angle to equate respectively.
Referring to Fig. 5, in the measuring process of reality, the first fixture and the second fixture combination are installed together, that is: horizontal ends 11 is embedded in cavity 23; Select the bolt fixed orifice 13 of correct position according to specimen length, with the transition section of guaranteeing sample, be positioned at outside fixture, parallel-segment all is arranged in fixture; Use bolt 3 that the first fixture and the second fixture are fixed; Supplemental measurement tool after combination is positioned on measurement plane, manually the partial parallel section of sample fracture is placed in " V " type groove of fixture, due to the effect of magnetic, sample is adsorbed on fixture; After sample section contact alignment, the manual measurement gauge length L that has no progeny u
The supplemental measurement tool of the utility model embodiment, overcome the deficiency that sample fracture partly is difficult for being in the same level axis, can keep rapidly the same level axis under magnet adsorption, improved the speed that connects of fracture sample, error in the elongation measurement process has reduced to have no progeny, reduced the operation easier of measuring the gauge length of having no progeny, convenient to use, effectively improved test efficiency.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.

Claims (4)

1. a supplemental measurement tool, is characterized in that, comprises the first fixture, the second fixture and bolt; Be provided with the bolt fixed orifice of a plurality of equal lengths on described the first fixture, the center of each bolt fixed orifice is on the same level axis; Described the second fixture inside is provided with cavity, is provided with a bolt fixed orifice that runs through described cavity on described the second fixture; Bolt fixed orifice on described the first fixture and the second fixture is mutually corresponding; Described the first fixture is embedded into the inside of described cavity, and by described bolt fixed orifice and bolt and described the second fixture, is spirally connected; The bottom of described the first fixture and the second fixture is respectively arranged with groove.
2. supplemental measurement tool as claimed in claim 1, is characterized in that, described the first fixture and the second fixture are respectively by orthogonal horizontal ends and vertical being integrally formed of end structure; Be provided with the bolt fixed orifice of a plurality of equal lengths on the horizontal ends of described the first fixture, the center of each bolt fixed orifice is on the same level axis; The horizontal ends inside of described the second fixture is provided with cavity, is provided with a bolt fixed orifice that runs through described cavity on the horizontal ends of described the second fixture; Bolt fixed orifice on the horizontal ends of described the first fixture and the second fixture is mutually corresponding; The horizontal ends of described the first fixture is embedded into the inside of described cavity, and by the horizontal ends of described bolt fixed orifice and bolt and described the second fixture, is spirally connected; The bottom of the vertical end of described the first fixture and the second fixture is respectively arranged with groove.
3. supplemental measurement tool as claimed in claim 2, is characterized in that, described groove is " V " type groove, and described " V " type groove is on the same level axis.
4. supplemental measurement tool as claimed in claim 3, is characterized in that, the degree of depth of described " V " type groove and the angle at " V " type angle equate respectively.
CN2013202563134U 2013-05-13 2013-05-13 Auxiliary measurement tool Active CN203286949U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN2013202563134U CN203286949U (en) 2013-05-13 2013-05-13 Auxiliary measurement tool

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111122308A (en) * 2019-12-18 2020-05-08 中国石油天然气集团有限公司 Tensile sample elongation after fracture measuring method and auxiliary measuring device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111122308A (en) * 2019-12-18 2020-05-08 中国石油天然气集团有限公司 Tensile sample elongation after fracture measuring method and auxiliary measuring device

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