Tensile experiment detection clamp for Z-shaped steel bar for pipeline winding

Abstract

The utility model discloses a Z-shaped steel bar tensile test detection fixture for pipeline winding, which comprises two fixture bodies which are identical in structure and mutually clamped, and a mould positioning groove, a mould positioning convex groove, a Z-shaped steel positioning groove and a Z-shaped steel positioning convex groove are arranged on the clamping surface of each fixture body. A connecting convex groove rail is arranged on the outer side face of the clamp body. The tensile experiment detection clamp for the Z-shaped steel bar for pipeline winding is simple in structure, small in size, light in weight, flexible to operate, high in efficiency, time-saving and labor-saving, and very suitable for being installed and used for tensile experiment detection of the Z-shaped steel bar for pipeline winding.

Description

A Z-shaped steel bar tensile testing fixture for pipe winding Technical Field

[0001] This utility model relates to a tensile testing fixture, specifically a tensile testing fixture for Z-shaped steel bars used in pipe winding. Background Technology

[0002] Currently, the clamp design for tensile testing of Z-shaped steel bars used in pipe winding is relatively simple, making it prone to slippage during tensile testing. Furthermore, there is no positioning device between the two clamps, which can easily lead to misalignment and other inaccuracies during clamping, resulting in damage to the Z-shaped steel bars and making tensile testing impossible. Summary of the Invention

[0003] Purpose of the utility model: The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a Z-shaped steel bar tensile test fixture for pipe winding. It has a simple structure, small size, light weight, flexible operation, high efficiency, and saves time and effort. It is very suitable for installation and use of Z-shaped steel bar tensile test fixture for pipe winding.

[0004] Technical solution: The present invention provides a tensile test fixture for Z-shaped steel bars used in pipe winding, comprising two fixture bodies with identical structures that clamp each other. The clamping surfaces of the fixture bodies are provided with a mold positioning groove, a mold positioning protrusion, a Z-shaped steel positioning groove, and a Z-shaped steel positioning protrusion. The outer surface of the fixture bodies is provided with a connecting protrusion track.

[0005] In some embodiments, the shape and size of the mold positioning groove and the mold positioning protrusion are adapted to each other.

[0006] In some embodiments, the shape and gap between the Z-shaped steel positioning groove and the Z-shaped steel positioning protrusion are adapted to the Z-shaped steel.

[0007] In some embodiments, the clamping surfaces of the Z-shaped steel positioning groove and the Z-shaped steel positioning protrusion are provided with anti-slip structures.

[0008] In some embodiments, the anti-slip structure is a grid pattern structure.

[0009] In some embodiments, the mold positioning groove and the mold positioning protrusion are located on both sides of the Z-shaped steel positioning groove and the Z-shaped steel positioning protrusion, respectively.

[0010] In some embodiments, the connecting groove track is connected to the mold base of the tensile testing machine.

[0011] In some embodiments, the clamp body has multiple through holes on its side.

[0012] Beneficial effects: The beneficial effects of this utility model are as follows:

[0013] (1) In the fixture of this utility model, the shape and size of the mold positioning groove and the mold positioning protrusion are adapted to each other; wherein, the mold positioning groove and the mold positioning protrusion can achieve the function of guiding and positioning, ensuring that the fixture can be accurate when the mold is closed and will not misalign.

[0014] (2) The clamp of this utility model has a Z-shaped steel positioning groove and a Z-shaped steel positioning protrusion with a shape and a gap that are adapted to the Z-shaped steel. The gap left in the middle of the two clamp bodies can accommodate the Z-shaped steel to pass through. The Z-shaped steel positioning groove and the Z-shaped steel positioning protrusion are set to ensure that the friction is increased during clamping and stretching, and to prevent the Z-shaped steel strip from slipping.

[0015] (3) In order to increase the surface roughness of the Z-shaped steel clamping area, increase the friction, and prevent the Z-shaped steel strip from slipping, the clamping surface of the Z-shaped steel positioning groove and the Z-shaped steel positioning protrusion is provided with an anti-slip structure. The anti-slip structure is preferably a grid pattern structure, and the grid pattern structure is set in the straight section of the Z-shaped steel positioning groove and the Z-shaped steel positioning protrusion.

[0016] (4) In the fixture of this utility model, the mold positioning groove and the mold positioning protrusion are located on both sides of the Z-shaped steel positioning groove and the Z-shaped steel positioning protrusion, respectively. The Z-shaped steel clamping part is set at the center of the entire fixture, which can ensure the balance of the overall tension during the testing process. The mold positioning groove and the mold positioning protrusion are located on both sides.

[0017] (5) The fixture of this utility model has multiple through holes on the side of the fixture body. The function of the through holes is to allow for the simultaneous tensile testing of other round steel bars and strip steel bars while conducting the tensile test of Z-shaped steel, thereby enabling one fixture to conduct tensile tests on multiple steel bars (or other types of products to be stretched).

[0018] (6) The Z-shaped steel bar tensile test fixture for pipe winding of this utility model has a simple structure, small size, light weight, flexible operation, high efficiency, and saves time and effort. It is very suitable for installation and use of Z-shaped steel bar tensile test for pipe winding. Attached Figure Description

[0019] Figure 1 is a schematic diagram of a single clamp body structure according to an embodiment of the present invention;

[0020] Figure 2 is a schematic diagram of the overall structure of a tensile test fixture according to an embodiment of the present invention. Detailed Implementation

[0021] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", etc., which indicate the orientation or positional relationship shown, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. Embodiment 1

[0025] As shown in Figures 1 and 2, a tensile testing fixture for Z-shaped steel bars used in pipe winding includes two identical fixture bodies 1 that clamp each other vertically, as shown in Figure 2. The clamping surfaces of the fixture bodies 1 are provided with a mold positioning groove 6, a mold positioning protrusion 3, a Z-shaped steel positioning groove 4, and a Z-shaped steel positioning protrusion 5. A connecting protrusion track 2 is provided on the outer surface of the fixture bodies 1.

[0026] In this embodiment, as shown in Figures 1 and 2, the shapes and sizes of the mold positioning groove 6 and the mold positioning protrusion 3 are adapted to each other. The mold positioning groove 6 and the mold positioning protrusion 3 serve as guides and positions, ensuring that the fixture is accurate during mold closing and preventing misalignment.

[0027] In this embodiment, the specific shapes of the mold positioning groove 6 and the mold positioning protrusion 3 are not limited to the triangle shown in the figure. They can also be circular or square structures. As long as the shape and size of the groove and the protrusion match, the guiding and positioning function can be achieved.

[0028] In this embodiment, as shown in Figures 1 and 2, the shape and gap between the Z-shaped steel positioning groove 4 and the Z-shaped steel positioning protrusion 5 are adapted to the Z-shaped steel 8. The gap left between the two clamp bodies 1 when they are combined vertically is just enough to allow the Z-shaped steel 8 to pass through. The Z-shaped steel positioning groove 4 and the Z-shaped steel positioning protrusion 5 are designed to increase friction during clamping and stretching, thus preventing the Z-shaped steel 8 from slipping off.

[0029] In this embodiment, in order to increase the surface roughness of the Z-shaped steel clamping area, increase the friction, and prevent the eight Z-shaped steels from slipping, an anti-slip structure is provided on the clamping surface of the Z-shaped steel positioning groove 4 and the Z-shaped steel positioning protrusion 5.

[0030] Furthermore, as shown in Figure 1, the anti-slip structure is preferably a grid pattern structure, and the grid pattern structure is set in the straight section within the Z-shaped steel positioning groove 4 and the Z-shaped steel positioning protrusion 5.

[0031] In this embodiment, as shown in Figure 1, the mold positioning groove 6 and the mold positioning protrusion 3 are located on both sides of the Z-shaped steel positioning groove 4 and the Z-shaped steel positioning protrusion 5, respectively. Positioning the Z-shaped steel clamping part at the center of the entire fixture ensures the balance of the overall tensile force during the testing process, and the mold positioning groove 6 and the mold positioning protrusion 3 are located on both sides.

[0032] In this embodiment, as shown in Figures 1 and 2, the connecting groove track 2 is connected to the mold base of the tensile testing machine. After the two clamp bodies 1 are combined and clamped, the tensile test can be achieved by fixing them to the mold base of the tensile testing machine through the connecting groove track 2 at both ends. The protruding structure of the connecting groove track 2 is adapted to and engaged with the groove on the mold base of the tensile testing machine for fixation. At the same time, the direction of the connecting groove track 2 is perpendicular to the direction of the tensile test of the Z-shaped steel 8, which can greatly improve the force distribution during tensile testing and improve the efficiency of the tensile test.

[0033] In this embodiment, as shown in Figures 1 and 2, the fixture body 1 has multiple through holes 7 on its side. The shape of the through holes 7 is not limited to circular; it can also be triangular, square, or strip-shaped. The function of the through holes 7 is to allow for simultaneous tensile testing of other circular or strip-shaped steel bars while performing tensile tests on the Z-shaped steel 8, thereby enabling a single fixture to perform tensile tests on multiple steel bars (or other types of products to be stretched).

[0034] In specific use, the fixture of this utility model is first placed in the clamping groove of one of the fixture bodies 1, and then another identical fixture body 1 is placed on top of the fixture body 1. The Z-shaped steel is clamped by the other fixture body 1. Finally, the connecting groove track 2 of the two fixture bodies 1 is fixedly connected to the mold base of the tensile testing machine. Then, the tensile force is detected by stretching the other end of the Z-shaped steel.

[0035] This utility model relates to a Z-shaped steel bar tensile testing fixture for pipe winding. It has a simple structure, small size, light weight, flexible operation, high efficiency, and saves time and effort. It is very suitable for installation and use in tensile testing of Z-shaped steel bars for pipe winding.

[0036] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A Z-shaped steel strip tensile test fixture for pipe winding, characterized in that: It includes two identical clamping bodies that clamp each other. The clamping surfaces of the clamping bodies are provided with mold positioning grooves, mold positioning protrusions, Z-shaped steel positioning grooves, and Z-shaped steel positioning protrusions. The outer side of the clamping bodies is provided with connecting protrusion tracks. ​ 2. The Z-shaped steel strip tensile test fixture for pipe winding according to claim 1, characterized in that: The shape and size of the mold positioning groove and the mold positioning protrusion are adapted to each other.

3. The Z-shaped steel bar tensile test fixture for pipe winding according to claim 1, characterized in that: The shape and gap between the Z-shaped steel positioning groove and the Z-shaped steel positioning protrusion are adapted to the Z-shaped steel.

4. The Z-steel tensile test fixture for pipe winding according to claim 1, characterized in that: The clamping surfaces of the Z-shaped steel positioning groove and the Z-shaped steel positioning protrusion are provided with anti-slip structures.

5. The Z-steel tensile test fixture for pipe winding according to claim 4, characterized in that: The anti-slip structure is a grid pattern structure.

6. The Z-shaped steel bar tensile test fixture for pipe winding according to claim 1, characterized in that: The mold positioning groove and the mold positioning protrusion are located on both sides of the Z-shaped steel positioning groove and the Z-shaped steel positioning protrusion, respectively.

7. The Z-steel tensile test fixture for pipe winding according to claim 1, characterized in that: The connecting groove track is connected to the mold base of the tensile testing machine.

8. The Z-shaped steel bar tensile test fixture for pipe winding according to claim 1, characterized in that: The clamp body has multiple through holes on its side.

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