CN215065733U - Clamping device for Z-direction tensile test sample of metal material - Google Patents

Abstract

The utility model relates to a metal material mechanical properties is experimental, concretely relates to metal material Z is to tensile test sample clamping device. The utility model discloses can be provided with button magnet on sample anchor clamps B, prevent that anchor clamps A and anchor clamps B pine from taking off, metal material's "Z is to" tensile test clamping device in use, and the device safe and reliable's centre gripping is detected the sample, ensures follow-up experiment and normally goes on, and the wedge groove of reserving in the middle of sample anchor clamps A, the sample anchor clamps B loosens convenient and fast, and the preparation time before the experiment is short, advantages such as the device simple structure, preparation convenience, easily operation.

Description

Clamping device for Z-direction tensile test sample of metal material

Technical Field

The utility model relates to a metal material mechanical properties is experimental, concretely relates to metal material Z is to tensile test sample clamping device.

Background

The 'Z-direction' tensile test of a metal material is generally a tensile test in the thickness direction of a steel plate material, the length of a sample is the material thickness, so the material sample is short, a jaw of a tensile testing machine cannot be clamped, the common method is to process two ends of the metal material sample into threads, and then an internal thread extension rod is manufactured and connected with the threads. According to the method, two ends of each sample are required to be processed into threads, and the coaxiality of the lengthened rod and the metal material sample after threaded connection is poor, so that a test result is influenced to a certain extent. In the test, each sample needs to be screwed and loosened twice, and the assembling and disassembling time is long. And the internal thread of the extension bar is easy to deform after a plurality of tensile tests, so that the threaded connection effect is influenced. In another method, welding grooves are processed at two ends of a sample, the two ends of the sample are lengthened through welding, the method has heat influence on the metal material sample, the integral straightness of the sample is not easy to guarantee during assembly welding, each sample needs secondary processing, the sample manufacturing period is prolonged, and additional auxiliary materials are needed. The 'Z-direction' tensile test clamping device for the metal material is designed, so that a quick and accurate clamping test can be realized under the condition that a secondary processing sample is not needed.

Disclosure of Invention

The to-be-solved technical problem of the utility model is because of "Z is short to" material sample, and the unable centre gripping of tensile testing machine is kept silent fixedly, can't test, for solving above-mentioned problem, the utility model provides a metal material Z is to tensile test sample clamping device.

The purpose of the utility model is realized with the following mode: metal material Z is to tensile test sample clamping device, including sample anchor clamps A and sample anchor clamps B, sample anchor clamps A is provided with the recess, set up the lug on the sample anchor clamps B, sample anchor clamps B and sample anchor clamps A convex-concave cooperation, lug top fixedly connected with button magnet, the lug side sets up the wedge groove, sample anchor clamps A and sample anchor clamps B keep away from button magnet one end setting and the inner chamber of material sample tip profile modeling preparation.

One end of the inner cavity, which is far away from the button magnet, is provided with a limiting groove which is made in a copying manner with the middle part of the material sample.

The sample clamp A and the sample clamp B are made of metal materials with tensile strength higher than or equal to that of the material sample.

Compared with the prior art, the utility model discloses can be provided with button magnet on the sample anchor clamps B, prevent that anchor clamps A and anchor clamps B pine from taking off, metal material's "Z is to" tensile test clamping device in use, and the device safe and reliable's centre gripping is detected the sample, ensures follow-up test and normally goes on, and the wedge groove of reserving in the middle of sample anchor clamps A, the sample anchor clamps B loosens convenient and fast, and the preparation time before the experiment is short, advantages such as the device simple structure, preparation convenience, easily operation.

Drawings

FIG. 1 is a schematic structural diagram of a sample clamping device for a Z-direction tensile test of a metal material.

FIG. 2 is a schematic view of the working condition of the sample clamping device for the Z-direction tensile test of the metal material.

Wherein, 1 sample anchor clamps A, 2 sample anchor clamps B, 3 button magnet, 4 material samples, 5 tensile testing machine keep silent, 6 wedge grooves, 7 inner chambers, 8 spacing recesses.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Example 1:

as shown in fig. 1-2, the clamping device for the Z-direction tensile test sample of the metal material comprises a sample clamp a1 and a sample clamp B2, wherein the sample clamp a1 is provided with a groove, the sample clamp B2 is provided with a bump, the sample clamp B2 and the sample clamp a1 are in convex-concave fit, the top of the bump is provided with a button magnet 3, the side surface of the bump is provided with a wedge groove 6, and one end of the sample clamp a1 and the sample clamp B2, which is far away from the button magnet 3, is provided with an inner cavity which is made by copying with the end of the material sample 4. Referring to fig. 1, a schematic diagram of the composition of a sample clamp a1, a sample clamp B2, a button magnet 3 and a material sample 4 is described, wherein a cavity 7 of the sample clamp a1 and a cavity 7 of the sample clamp B2 are processed according to the end of the material sample 4 in a copying mode, and are properly lengthened in the length direction, and certain space allowance is reserved so as to be suitable for material samples 4 with different lengths. Before the test, the convex groove of the sample clamp B2 is placed on a workbench in an upward mode, one end of a material sample 4 is placed into the sample groove of the sample clamp B2, then the groove of the sample clamp A1 faces downward and is aligned with the convex groove of the sample clamp A1 to be combined together, and the button magnet 3 fixed on the sample clamp B2 attracts the sample clamp A1 and the sample clamp B2 together. Referring to fig. 2, before the material "Z-direction" tensile test is performed, the material sample 4 is placed in a "Z-direction" tensile test holding device, and then the holding device completes the lengthening operation of one end of the material sample 4, and the lengthening operation of the other end of the material sample 4 is completed in the same way.

A limiting groove 8 which is made in a copying mode with the middle of the material sample 4 is formed in one end, far away from the button magnet 3, of the inner cavity 7, one end of the material sample 4 is placed into the copying inner cavity 7 of the clamp B2, the groove face of the sample clamp A1 faces downwards and is combined with the groove of the clamp B2, the device is clamped by the jaw 5 of the tensile testing machine, and then the tensile test of the metal material can be conducted according to the tensile test operation rules.

The sample clamp a1 and the sample clamp B2 are made of metal materials with tensile strength higher than or equal to that of the material sample 4.

The working process of the utility model is as follows: before a material tensile test is carried out, a convex groove of a sample clamp B2 is placed on a workbench in an upward mode, one end of a material sample 4 is placed into a profiling inner cavity 7 of a clamp B2, then the surface of a groove of a sample clamp A1 faces downward and is aligned with a convex groove of a clamp B2 to be combined together, a button magnet 3 on the sample clamp B2 attracts the clamp A1 and the clamp B2 to prevent the clamp A1 and the clamp B2 from loosening, and a clamping device at the other end of the material sample is installed in the same method. The lengthened Z-direction tensile sample is completed through the clamping device, the tensile test device is placed in a jaw 5 of a tensile testing machine to clamp devices at two ends, normal tensile test can be performed, after the test is completed, the Z-direction tensile material sample 4 with the clamping device is taken down and placed on a workbench, a flat screwdriver is used for aligning to a wedge groove 6 reserved between a sample clamp A1 and a sample clamp B2, the clamp A1 and the clamp B2 are easily disassembled, and then the whole test work is completed.

While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the general inventive concept, and it is intended to cover all such changes and modifications as fall within the true spirit and scope of the invention.

Claims (3)

1. Metal material Z is to tensile test sample clamping device, including sample anchor clamps A (1) and sample anchor clamps B (2), its characterized in that, sample anchor clamps A (1) are provided with the recess, set up the lug on sample anchor clamps B (2), sample anchor clamps B (2) and sample anchor clamps A (1) convex-concave cooperation, the lug top is connected with button magnet (3), the lug side sets up wedge groove (6) sample anchor clamps A (1) and sample anchor clamps B (2) are kept away from button magnet (3) one end and are set up inner chamber (7) with material sample (4) tip profile modeling preparation.

2. The metallic material Z-direction tensile test specimen holding apparatus according to claim 1, characterized in that: one end of the inner cavity, which is far away from the button magnet (3), is provided with a limiting groove (8) which is made in a copying way with the middle part of the material sample (4).

3. The metallic material Z-direction tensile test specimen holding apparatus according to claim 1, characterized in that: the sample clamp A (1) and the sample clamp B (2) are made of metal materials with tensile strength higher than or equal to that of the material sample (4).

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