Device for measuring fractured tensile sample

Abstract

The utility model relates to a tensile sample after-fracture measuring device which comprises a base, scale marks are arranged on the front face of the base, supporting vertical plates are connected to the two end faces of the base in the length direction respectively, two fixing blocks which are symmetrically arranged at intervals are formed on the upper surface of the base, and containing grooves are formed in the upper surfaces of the two fixing blocks in the length direction of the base. The two containing grooves are located in the same straight line, sliding tables are formed in the positions, on the two sides of the containing groove, of each fixing block in the length direction of the containing groove, the base is sleeved with a movable frame corresponding to each fixing block, and sliding blocks in sliding fit with the sliding tables on the two sides are arranged on the inner side of each movable frame in a protruding mode. A vertical threaded through hole right opposite to the containing groove is formed in the top of each movable frame, and a pressing screw is in threaded connection with the interior of each threaded through hole. According to the utility model, a fractured sample can be spliced again and clamped and positioned by using the pressing screw rod matched with the accommodating groove, and the scale distance can be conveniently measured by using the scale marks on the base, so that the measurement stability is ensured, and errors are effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to tensile test measurement technical field, concretely relates to a tensile test sample after breaking measuring device. BACKGROUND

[0002] In order to detect the elongation after breaking and the shrinkage of fracture of tensile test sample, the gauge length after breaking of the test sample needs to be measured when testing the mechanical properties of metal materials, and currently vernier caliper is generally used for measurement, but there is lack of applicable measuring tool or measuring instrument.

[0003] There are the following problems in measuring the gauge length after breaking of the test sample by using vernier caliper:

[0004] I. The test sample is not clamped stably, and the detection by using vernier caliper is not accurate and stable;

[0005] II. The vernier caliper cannot clamp the gauge length line, and the manual operation error is large. INVENTION CONTENTS

[0006] In view of the deficiencies of the prior art, the utility model provides a tensile test sample after breaking measuring device, which can re-splice and clamp and position the test sample after breaking by using the pressing screw and the containing groove, and the gauge length can be conveniently measured by using the scale line on the base, so that the measurement stability is ensured, and the error is effectively reduced.

[0007] The utility model is realized through the following technical schemes:

[0008] A tensile test sample after breaking measuring device is provided, which comprises a base, the front surface of the base is provided with a scale line along the length direction, the end surfaces of the base in the length direction are respectively connected with support vertical plates which can support the base on the ground, the upper surface of the base is formed with two fixed blocks which are symmetric about the length midpoint of the base and are arranged at intervals, the upper surfaces of the two fixed blocks are respectively formed with containing grooves along the length direction of the base, the two containing grooves are located on the same straight line, each fixed block is respectively formed with a sliding table along the length direction of the containing groove on the two sides of the containing groove, a movable frame is installed on the base corresponding to each fixed block, the inner side of each movable frame is protruded and formed with a sliding block which is in sliding cooperation with the sliding tables on the two sides, a vertical threaded hole which is opposite to the containing groove is formed in the top of each movable frame, and a pressing screw is threadedly connected in the threaded hole.

[0009] As a preferred, the cross section of the containing groove is V-shaped.

[0010] By designing the cross section of the containing groove to be V-shaped, the test sample of round bar type can be better fixed, and the application range is expanded.

[0011] Further, the bottom of the movable frame is in sliding contact with the bottom surface of the base.

[0012] The bottom of the movable frame is in sliding contact with the bottom surface of the base, which helps to keep the movable frame stable when moving and helps to quickly position and clamp the sample.

[0013] As a preferred, the upper end of the compression screw is connected with a hand wheel located above the movable frame.

[0014] The upper end of the compression screw is connected with a hand wheel, which facilitates the rotation operation of the compression screw and improves the convenience of operation.

[0015] Further, the upper part of the support stand is formed with an avoidance slot opposite to the accommodation slot.

[0016] The upper part of the support stand is formed with an avoidance slot, which can facilitate the placement of the sample into the accommodation slot or the removal of the sample from the accommodation slot, and is convenient for taking and placing the sample.

[0017] Further, the bottom of the support stand is formed with a support part on both sides.

[0018] The bottom of the support stand is formed with a support part on both ends, which can be supported by contacting the ground through the support part, thereby ensuring the stability of the support stand.

[0019] The beneficial effects of the present application are:

[0020] The compression screw on the movable frame and the accommodation slot on the fixed block are matched, which facilitates the adjustment of the recombination of the sample after tensile fracture and the compression positioning of the two sample sections. The scale line provided on the base and the movable frame can be used to more stably and intuitively observe and measure the sample data, thereby solving the problem of unstable clamping and the inability to clamp the gauge line during the measurement of the vernier caliper, which causes large measurement error. Compared with the prior art, the measurement is more stable and accurate, and the error is effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0022] Figure 2 It is a rear view. Figure 1

[0023] Figure 3 It is a rear side view. Figure 1

[0024] Figure 4 It is a right view. Figure 1

[0025] The drawings show:

[0026] 1, base, 2, scale line, 3, support stand, 4, fixed block, 5, accommodation slot, 6, avoidance slot, 7, sliding table, 8, movable frame, 9, sliding block, 10, compression screw, 11, support part.​​​ DETAILED DESCRIPTION

[0027] In order to clearly illustrate the technical features of the present solution, the present solution will be described below through specific embodiments.

[0028] As shown in Figures 1-4 A tensile specimen after-break measurement device includes a base 1, the front surface of the base 1 is provided with a scale line 2 along the length direction, the two end surfaces of the base 1 in the length direction are respectively connected with support vertical plates 3 which can support the base 1 on the ground, and the bottom of each support vertical plate 3 is formed with a support part 11.

[0029] The upper surface of the base 1 is formed with two fixed blocks 4 which are symmetric about the midpoint of the length of the base 1 and are arranged at intervals, in the embodiment, the base 1 and the fixed blocks 4 are an integral structure, the upper surface of each fixed block 4 is formed with a receiving groove 5 along the length direction of the base 1, and the cross section of the receiving groove 5 is V-shaped. In order to facilitate the taking and placing of the specimen, the upper part of the support vertical plate 3 is formed with an avoidance groove 6 which is opposite to the receiving groove 5, and the cross section shape of the avoidance groove 6 is the same as that of the receiving groove 5.

[0030] The two receiving grooves 5 are located on the same straight line, each fixed block 4 is formed with a sliding table 7 along the length direction of the receiving groove 5 on the two sides of the receiving groove 5, a movable frame 8 is installed on the base 1 corresponding to each fixed block 4, the inner side of each movable frame 8 is formed with a sliding block 9 which is in sliding cooperation with the sliding tables 7 on the two sides, the top of each movable frame 8 is provided with a vertical threaded hole which is opposite to the receiving groove 5, and a compression screw 10 is threadedly connected in the threaded hole. In order to facilitate the rotation of the compression screw 10, the upper end of the compression screw 10 is connected with a hand turning wheel 11 which is located above the movable frame 8.

[0031] The bottom of the movable frame 8 is in sliding contact with the bottom surface of the base 1, and the two sides of the movable frame 8 are in sliding contact with the two side surfaces of the base 1.

[0032] The present utility model is applied to the tensile specimen after-break measurement, the specimen after being pulled apart can be respectively placed into the two receiving grooves 5 on the fixed blocks 4 on the base 1, the two specimen breakage parts are aligned, the position of the movable frame 8 is adjusted to a fixed position, the hand turning wheel 11 is rotated to lock the two specimens by the compression screw 10, the elongation value and the cross section shrinkage value of the specimen after being broken can be respectively measured by the scale line 2 on the front surface of the base 1, one side of the movable frame 8 which is opposite to the scale line 2 can be matched with the scale line 2 to realize the accurate reading of the scale value, not only the stable clamping of the specimen after being broken can be realized, but also the measurement of the data can be realized at the same time, the accuracy of the specimen after-break measurement is greatly improved, and the error is reduced.

[0033] Of course, the above description is also not limited to the above examples, the technical features not described in the utility model can be realized by or using the prior art, which will not be repeated here; the above embodiments and drawings are only used to illustrate the technical scheme of the utility model and are not a limitation on the utility model, the utility model has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that the changes, modifications, additions or replacements made by those skilled in the art within the essential scope of the utility model do not deviate from the purpose of the utility model, and should also belong to the protection scope of the claims of the utility model.

Claims

1. A post-fracture measurement device for a tensile specimen, characterized in that: The cam is secured to the floor with two pieces of hardware that can be used for support and adjustment, and the cam is secured on two sides of the floor with two pieces of hardware that can be used for track climbing.

2. The post-fracture measurement device for tensile specimens according to claim 1, characterized in that: The cross section of the accommodating groove is V-shaped.

3. The post-fracture measurement device for tensile specimens according to claim 1, characterized in that: The bottom of the movable frame is in sliding contact with the bottom surface of the base.

4. The post-fracture measurement device for tensile specimens according to claim 1, characterized in that: The upper end of the compression screw is connected with a hand-tightening wheel located above the movable frame.

5. The post-fracture measurement device for tensile specimens according to claim 1, characterized in that: An avoidance groove is formed on the upper portion of the supporting vertical plate and is directly opposite to the accommodating groove.

6. The post-fracture measurement device for tensile specimens according to claim 1, characterized in that: Support parts are respectively formed on both sides of the bottom of the supporting vertical plate.

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