CN219417008U - Auxiliary positioning tool for post-fracture measurement of cylindrical tensile sample - Google Patents

Abstract

The utility model discloses an auxiliary positioning tool for measuring a cylindrical tensile sample after fracture, which comprises a bracket, a plastic block and a plurality of positioning plates which are fixed on the bracket and are mutually parallel, wherein the bracket is placed on a working platform, the plastic block is placed in the middle of the bracket, the positioning plates are arranged at intervals along a horizontal straight line and are divided into two groups, the two groups of positioning plates are symmetrically arranged on two sides of the plastic block, the upper end of each positioning plate is provided with a V-shaped groove, two ends of the cylindrical tensile sample which is broken by pulling are respectively placed in the V-shaped grooves of the two groups of positioning plates, and the butt joint part of the middle part of the tensile sample is supported by the plastic block. According to the utility model, the V-shaped grooves are used for positioning the two ends of the tensile sample, and the plastic blocks are used for supporting the butt joint part of the middle part of the tensile sample, so that the tensile sample is prevented from sagging due to self gravity. By using the tool, only one person is needed to measure the sample, so that not only can the waste of manpower be reduced, but also the coaxiality of two sections of samples can be ensured and the section of the sample can be perfectly attached, thereby improving the measurement accuracy of the sample.

Description

Auxiliary positioning tool for post-fracture measurement of cylindrical tensile sample

Technical Field

The utility model relates to a sample positioning tool for measuring the elongation and the reduction of area of a tensile sample, and belongs to the technical field of testing.

Background

Steel enterprises and scientific research institutions need to conduct tensile tests on steel in laboratories to know data of tensile strength, elongation after break and area shrinkage of steel pieces made of different materials, so that actual production is guided.

In the tensile test, it is necessary to butt-joint the samples after the breaking, and then measure the elongation and the reduction of area thereof using a tool such as a caliper. However, at present, no special sample positioning tool exists, an operator can only hold a sample by one hand and can only perform measurement by one hand, if the operator cannot hold the sample by one hand due to small hands, one person is required to hold the sample, and the other person performs measurement.

Disclosure of Invention

The utility model aims at overcoming the defects of the prior art, and provides an auxiliary positioning tool for measuring a cylindrical tensile sample after fracture, so that the waste of manpower is reduced, and the measuring precision of the tensile sample is improved.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a cylindrical tensile sample after-break measuring auxiliary positioning instrument, includes support, plastic piece and a plurality of locating plate that fix on the support and be parallel to each other, the support is placed on work platform, the plastic piece is placed at the middle part of support, and a plurality of locating plates are along horizontal straight line interval arrangement and divide into two sets of, and two sets of locating plate symmetry set up in the both sides of plastic piece, and the upper end of every locating plate is equipped with V type groove, is placed in the V type groove of two sets of locating plates respectively by the both ends of the cylindrical tensile sample of stretch-breaking, and the butt joint department at tensile sample middle part is supported by the plastic piece.

Above-mentioned cylindrical tensile sample after-break measuring auxiliary positioning instrument, the support includes gag lever post and locating screw, the locating plate is the rectangular plate, and the lower extreme edge top of locating plate is on work platform, the locating screw slides the locating hole of passing each locating plate lower extreme, and the both sides of every locating plate all are equipped with lock nut, lock nut passes through screw thread and locating screw cooperation, the gag lever post slides the locating hole at passing each locating plate middle part, and the plastic mass is placed at the middle part of gag lever post.

The auxiliary positioning tool for measuring the cylindrical tensile sample after fracture is characterized in that a handle is arranged at the end part of the limiting rod.

The auxiliary positioning tool for measuring the cylindrical tensile sample after fracture is characterized in that the limiting rod is a threaded rod, and a limiting nut corresponding to the positioning plate is arranged on the upper portion of the limiting rod.

The auxiliary positioning tool for measuring the cylindrical tensile sample after fracture is characterized in that six positioning plates are arranged, and one positioning plate is arranged at each of two ends of the positioning screw rod.

The plastic block is plasticine.

According to the utility model, the V-shaped grooves on the positioning plates arranged along the straight line are used for positioning the two ends of the tensile sample, so that the two sections of samples are coaxial, and the plastic block is used for supporting the butt joint part of the middle part of the tensile sample, so that the tensile sample is prevented from sagging due to self gravity. By using the tool, only one person is needed to measure the sample, so that the labor waste can be reduced, the test cost can be reduced, the coaxiality of two sections of samples can be ensured, the section of the sample can be perfectly attached, and the measurement accuracy of the tensile sample can be improved.

Drawings

The utility model will be described in further detail with reference to the drawings and the detailed description.

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is a left side view of fig. 1.

The reference numerals in the figures are as follows: 1. the locating plate, 2, the plastic piece, 3, the gag lever post, 4, the locating screw rod, 5, lock nut, 6, handle, 7, V type groove.

Description of the embodiments

The utility model provides an auxiliary positioning tool for measuring a cylindrical tensile sample after fracture, which adopts a V-shaped groove and plasticine to position the sample, is convenient for a tester to operate and control, and ensures the measurement efficiency. The V-shaped groove can ensure the coaxiality of two sections of samples, and the plasticine can ensure that the middle part of the samples is not affected by gravity to descend. The tool can improve measurement accuracy and ensure that data is quickly ready to be reported.

Referring to fig. 1, the utility model mainly comprises a locating plate 1, a plastic block 2, a limit rod 3, a locating screw 4, a lock nut 5 and a handle 6.

The limiting rod 3, the positioning screw 4 and the locking nut 5 form a bracket for fixing the positioning plate 1 and the plastic block 2.

The locating plates 1 and the plastic blocks 2 are parts with locating functions, the locating plates 1 are arranged along a horizontal straight line and are fixed together through locating screws 4 and locking nuts 5 penetrating through locating holes at the lower ends of the locating plates, the limiting rods 3 penetrate through limiting holes in the middle of the locating plates 1 to prevent the locating plates 1 from rotating, the limiting rods 3 can also adopt threaded rods, limiting nuts are arranged on the upper portions of the limiting rods, and the stability of the locating plates 1 is improved.

The lock nut 5 is used for fixing the positioning plates 1, and the distance between the positioning plates 1 can be adjusted according to the size of the sample.

The cylindrical tensile sample that is broken is together fixed a position by V type groove 7 and the plastic piece 2 of locating plate 1 upper end, and the axiality of two sections samples is guaranteed to V type groove 7 is put into at the both ends of tensile sample, and the butt joint department at tensile sample middle part is supported by the plastic piece 2, prevents that it from drooping because of self gravity.

The plastic block 2 is made of plasticine, and can be made of other materials with good plasticity.

During measurement, after the broken tensile samples are butted and overlapped, two ends of the tensile samples are respectively placed in V-shaped grooves 7 at the upper ends of two groups of positioning plates 1, a plastic block 2 (plasticine) is used for fixing the middle broken part, so that the middle broken part is not affected by gravity to fall down, and then a caliper is used for measuring the breaking elongation and the reduction of area of the samples.

The beneficial effects of the utility model are as follows:

1) When the tensile sample is measured after breaking, the two hands of an operator can be liberated, and the tensile sample is convenient for a tester to measure.

2) Compared with a tip-shaped measuring auxiliary tool which can liberate both hands, at least 3 minutes can be saved for each measuring sample, and the measuring efficiency is greatly improved.

3) The coaxiality of the two sections of the samples can be guaranteed, the sections of the samples are perfectly attached, the measurement error is reduced, and the measurement accuracy of the tensile samples is improved.

Claims (6)

1. The utility model provides a cylindrical tensile sample after-break measuring auxiliary positioning tool, characterized by, including support, plastic piece (2) and a plurality of locating plate (1) of fixing on the support and being parallel to each other, the support is placed on work platform, plastic piece (2) are placed at the middle part of support, and a plurality of locating plates (1) are along horizontal straight line interval arrangement and divide into two sets of, and two sets of locating plates (1) symmetry set up in the both sides of plastic piece (2), and the upper end of every locating plate (1) is equipped with V type groove (7), is placed in V type groove (7) of two sets of locating plates (1) respectively by the both ends of breaking cylindrical tensile sample, and the butt joint department at tensile sample middle part is supported by plastic piece (2).

2. The auxiliary positioning tool for post-fracture measurement of cylindrical tensile samples according to claim 1, wherein the support comprises a limiting rod (3) and a positioning screw rod (4), the positioning plate (1) is a rectangular plate, the edge of the lower end of the positioning plate (1) is propped against the working platform, the positioning screw rod (4) slides through positioning holes at the lower end of each positioning plate (1), locking nuts (5) are arranged on two sides of each positioning plate (1), the locking nuts (5) are matched with the positioning screw rods (4) through threads, the limiting rod (3) slides through limiting holes in the middle of each positioning plate (1), and a plastic block (2) is placed in the middle of the limiting rod (3).

3. The auxiliary positioning tool for post-fracture measurement of cylindrical tensile samples according to claim 2, wherein the end part of the limiting rod (3) is provided with a handle (6).

4. A tool for assisting in the post-fracture measurement of a cylindrical tensile sample according to claim 3, wherein the limit rod (3) is a threaded rod, and a limit nut corresponding to the locating plate (1) is arranged at the upper part of the limit rod.

5. The auxiliary positioning tool for post-fracture measurement of cylindrical tensile samples according to claim 4, wherein six positioning plates (1) are arranged, and two positioning plates (1) are arranged at two ends of each positioning screw (4).

6. An auxiliary positioning tool for post-fracture measurement of a cylindrical tensile specimen according to any one of claims 1 to 5, wherein the plastic mass (2) is a plasticine.