Fixture for large-size round-rod-shaped tensile sample

Abstract

The utility model discloses a clamp for a large-size round bar-shaped tensile sample, which relates to the technical field of metal tensile tests and comprises a clamping end and a connecting end, and the clamping end is used for clamping a rectangular sample by a chuck of a testing machine; one end of the connecting end is fixedly connected with the clamping end, and the other end of the connecting end is detachably and fixedly connected with a round bar-shaped sample, so that the structure is simple, the use is convenient, the working efficiency is effectively ensured, and the abrasion of parts of the testing machine is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to metal tensile test technical field especially relates to a big gauge round bar tensile sample clamp. BACKGROUND

[0002] At present, the sample shape of metal material tensile test in GB / T228.1-2021 is divided into rectangle and round bar, and the matching testing machine chuck should be used in the test process according to different sample shapes, the existing universal material testing machine chuck has many types, the chuck of the universal material testing machine of the laboratory for doing different shape samples is difficult to disassemble, and frequent replacement of the chuck not only reduces work efficiency, but also causes the parts of the testing machine to be easily worn, which affects the precision of the test results.

[0003] Therefore, a clamp for a universal material testing machine chuck is needed to be designed to adapt to different shapes of samples, and the sample can be quickly clamped during the test process to improve the use efficiency of the testing machine and the accuracy of the data. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a big gauge round bar tensile sample clamp to solve the problems in the prior art, which has simple structure, is convenient to use, effectively ensures work efficiency and effectively reduces the wear of the parts of the testing machine.

[0005] To achieve the above object, the utility model provides the following scheme.

[0006] The utility model provides a big gauge round bar tensile sample clamp, which comprises a clamping end and a connecting end, the clamping end is used for being clamped by the chuck of the testing machine for clamping a rectangular sample, one end of the connecting end is fixedly connected with the clamping end, and the other end is used for being detachably fixedly connected with a round bar sample.

[0007] Preferably, the clamping end comprises a first plane and a second plane, the first plane and the second plane are arranged in parallel and are arranged on opposite sides of the clamping end respectively, and the first plane and the second plane are used for being clamped by the chuck of the testing machine for clamping a rectangular sample.

[0008] Preferably, the first plane is a first rough surface.

[0009] Preferably, the second plane is a second rough surface.

[0010] Preferably, one end of the connecting end away from the clamping end is provided with a threaded hole, and the threaded hole is used for being threadedly connected with the end of the round bar sample.

[0011] Preferably, the connecting end is integrally connected with the clamping end and is formed by cylindrical machining.

[0012] Preferably, the diameter of the cylinder is 52mm and the length is 310mm.

[0013] Preferably, the length of the clamping end is 220mm and the distance between the first plane and the second plane is 32mm.

[0014] Preferably, the diameter of the threaded hole is 32mm, the length of the threaded hole is 70mm and the pitch of the threaded hole is 3mm.

[0015] The utility model discloses relative to prior art has obtained following technical effect:

[0016] The utility model provides a big specification round stick shape tensile sample's clamp, through setting up and connecting with round stick shape sample with the connecting end, and can be through the clamping end by the clamping rectangular sample's chuck of testing machine clamping, thereby can avoid replacing testing machine chuck, can make the clamping rectangular sample's chuck of testing machine can be used for the clamping of rectangular sample also can through the utility model provides big specification round stick shape tensile sample's clamp to the clamping of round stick shape sample, effectively avoid frequently replacing chuck, simple structure, convenient to use, effectively guarantee work efficiency, effectively reduce testing machine part wear and tear. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment, obviously, the drawing in the following description only is some embodiments of the utility model, for the ordinary skilled person in the art, under the premise of not paying creative labor, still can obtain other drawings according to these drawings.

[0018] Figure 1 The utility model provides big specification round stick shape tensile sample's clamp's structural schematic diagram;

[0019] In the drawing: 1, clamping end, 2, first plane, 3, connecting end, 4, threaded hole. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model, obviously, the described embodiment only is a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skilled person in the art without making creative labor belong to the range of protection of the utility model.

[0021] The utility model discloses a kind of big specification round stick shape tensile sample's clamps, to solve the problems in the above prior art, simple structure, convenient to use, effectively guarantee work efficiency, effectively reduce testing machine part wear and tear.

[0022] In order to make the above-mentioned purposes, characteristics and advantages of the utility model more apparent, obvious and easy to understand, the utility model will be further described in detail below in combination with the drawings and specific embodiments.

[0023] The utility model provides a kind of fixture of large-specification round bar tensile sample, as shown in figure, including: clamping end 1 and connecting end 3, clamping end 1 is used to be clamped by the clamping head of testing machine rectangular sample;Connecting end 3 one end is fixedly connected with clamping end 1, the other end is used to be detachably fixedly connected with round bar sample, by the design of clamping end 1 and connecting end 3, make large-specification round bar tensile sample can be carried out tensile test without replacing testing machine clamping head, improve test efficiency, reduce the damage of frequent replacement of clamping head to testing machine. Figure 1 In a preferred embodiment, clamping end 1 includes first plane 2 and second plane, first plane 2 and second plane are arranged in parallel and are arranged on the opposite sides of clamping end 1 respectively, first plane 2 and second plane are used to be clamped by the clamping head of testing machine rectangular sample, two parallel planes are arranged as clamping part, can better cooperate with the clamping head of testing machine rectangular sample, ensure the stability and reliability of clamping.

[0024] In a preferred embodiment, first plane 2 is first rough surface, first plane 2 is rough surface, which can increase the friction between the clamping head of testing machine and improve the firmness of clamping, reduce the risk of sample sliding during test.

[0025] In a preferred embodiment, second plane is second rough surface, second plane is rough surface, which can also increase the friction, further improve the stability of clamping and ensure the accuracy of test results.

[0026] In a preferred embodiment, the end of connecting end 3 away from clamping end 1 is provided with threaded hole 4, threaded hole 4 is used for threaded connection with the end of round bar sample, threaded hole 4 is used to connect round bar sample, which is firm and easy to disassemble, convenient for sample installation and replacement, improve the operation convenience of test.

[0027] In a preferred embodiment, connecting end 3 is integrally connected with clamping end 1 and is formed by cylindrical machining, the design of integral connection enhances the overall strength and stability of the fixture, reduces the test error caused by loose connection part.

[0028] In a preferred embodiment, the diameter of the cylinder is 52mm, and the length is 310mm, which specifies the size parameters of the cylinder, provides specific specification standard for the manufacture of the fixture, and ensures that the fixture can be applied to testing machines and samples of different specifications.

[0029]

[0030] ​In a preferred embodiment, the length of the clamping end 1 is 220 mm, and the distance between the first plane 2 and the second plane is 32 mm, which defines the length of the clamping end 1 and the plane distance, so that the clamp can better adapt to the size requirements of the testing machine chuck, and improve the clamping effect.

[0031] In a preferred embodiment, the diameter of the threaded hole 4 is 32 mm, the length of the threaded hole 4 is 70 mm, and the pitch of the threaded hole 4 is 3 mm, which ensures the tightness and stability of the connection with the round bar-shaped sample, and ensures that the sample will not loosen or fall off during the test process.

[0032] The principle and implementation mode of the specific examples applied in the utility model are described, and the above embodiment is only used to help understand the method and core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the utility model, the specific implementation mode and application range will be changed. In conclusion, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A clamp for large gauge round bar tensile specimens, characterized by: The utility model relates to a test piece for testing the tensile strength of a round bar, comprising: a clamping end for being clamped by a clamp head of a testing machine for clamping a rectangular test piece; and a connecting end, one end of which is fixedly connected with the clamping end, and the other end of which is used for being detachably fixedly connected with a round bar-shaped test piece.

2. The clamp for large gauge round bar tensile specimens of claim 1, wherein: The clamping end comprises a first plane and a second plane, which are arranged in parallel and are respectively arranged on opposite sides of the clamping end, and are used for being clamped by a clamp head of the testing machine for clamping a rectangular test piece.

3. The clamp for large gauge round bar tensile specimens of claim 2, wherein: The first plane is a first rough surface.

4. The clamp for large gauge round bar tensile specimens of claim 3, wherein: The second plane is a second rough surface.

5. The fixture for large gauge round bar tensile specimens of claim 4, wherein: One end of the connecting end away from the clamping end is provided with a threaded hole, which is used for being threadedly connected with an end of the round bar-shaped test piece.

6. The fixture for large gauge round bar tensile specimens of claim 5, wherein: The connecting end is integrally connected with the clamping end and is formed by cylindrical machining.

7. The fixture for large gauge round bar tensile specimens of claim 6, wherein: The diameter of the cylinder is 52 mm, and the length is 310 mm.

8. The fixture for large gauge round bar tensile specimens of claim 7, wherein: The length of the clamping end is 220 mm, and the distance between the first plane and the second plane is 32 mm.

9. The fixture for large gauge round bar tensile specimens of claim 8, wherein: The diameter of the threaded hole is 32 mm, the length of the threaded hole is 70 mm, and the pitch of the threaded hole is 3 mm.

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