CN219084599U

CN219084599U - Right-angle pipe welding seam tensile test tool

Info

Publication number: CN219084599U
Application number: CN202122831585.XU
Authority: CN
Inventors: 邓港; 刘兰; 杨爱龙
Original assignee: Jiangsu Huabiao Testing Research Institute Co ltd
Current assignee: Jiangsu Huabiao Testing Research Institute Co ltd
Priority date: 2021-11-16
Filing date: 2021-11-16
Publication date: 2023-05-26
Anticipated expiration: 2031-11-16

Abstract

The utility model discloses a tensile test tool for a welding seam of a right-angle pipe, wherein one end of a welding seam sample of the right-angle pipe is connected with a tensile sleeve, and the other end of the welding seam sample of the right-angle pipe is positioned between a first clamp and a second clamp; the stretching sleeve is connected with an external testing machine chuck; the first clamp and the second clamp are positioned above the fixed bottom plate. The utility model is matched with the existing universal testing machine for use, realizes recording of the changes of force, displacement and the like of the welding line of the right-angle pipe under the action of uniform continuous tension, is convenient for observing the crack expansion and failure states of the welding line, and performs structural check on the components.

Description

Right-angle pipe welding seam tensile test tool

Technical Field

The utility model relates to a material mechanical property detection device, in particular to a right-angle pipe weld tensile test tool.

Background

The tensile test is a test that determines a series of properties of a material under tensile load. It is one of the basic methods of mechanical property test of materials, and provides a basis for whether the materials or components meet relevant quality standards or not through tensile test. In the existing tensile test, a sample with regular shapes such as a plate shape or a round bar shape is usually taken from a material to be detected, but a sample of a right-angle pipe welding line cannot be sampled by using the method, because the stress of the welding line is often not in the same axial direction, the tensile performance of the welding line is difficult to detect by using a traditional method.

The existing common tensile test tool is not suitable for tensile test of the welding line of the right-angle pipe, and meanwhile cannot be matched with the existing universal testing machine for testing. This causes uncertainty in the industrial design of the product and makes it impossible to accurately judge its tensile properties.

Disclosure of Invention

The utility model aims to: aiming at the defects and defects of the prior art, the utility model provides a rectangular tube welding seam tensile test tool which is matched with the existing universal testing machine to record the changes of force, displacement and the like of the rectangular tube welding seam under the action of uniform continuous tension, so that the crack expansion and failure states of the welding seam can be conveniently observed, and meanwhile, the structure of a component is checked.

The technical scheme is as follows: the utility model discloses a right-angle pipe welding seam tensile test tool, which comprises a right-angle pipe welding seam sample and is characterized in that: one end of the right-angle pipe welding seam sample is connected with the stretching sleeve, and the other end of the right-angle pipe welding seam sample is positioned between the first clamp and the second clamp; the stretching sleeve is connected with an external testing machine chuck; the first clamp and the second clamp are located above the fixed bottom plate.

Wherein, the fixed bottom plate is provided with a plurality of rows and a plurality of columns of threaded holes.

Wherein, the first clamp and the second clamp are provided with vertical screw holes; the first clamp and the fixed bottom plate and the second clamp and the fixed bottom plate are connected through bolts penetrating through corresponding vertical screw holes and threaded holes.

The vertical screw holes of the first clamp and the second clamp are formed in the two end parts.

The first clamp and the second clamp are provided with transverse screw holes, and the first clamp is connected with the second clamp through bolts penetrating through the corresponding transverse screw holes.

Wherein, first anchor clamps and second anchor clamps all seted up 2 horizontal screw, 2 horizontal screw are located first anchor clamps and second anchor clamps middle part.

The beneficial effects are that: compared with the prior art, the utility model has the following remarkable advantages: according to the test fixture for the stretching of the right-angle pipe weld joint, one side of a test sample is fixed through the first clamp and the second clamp, the other half of the test sample is fixed through the stretching sleeve, the first clamp and the second clamp are connected and fixed to the test machine through the fixed bottom plate, the upper end of the stretching sleeve is connected with the clamping head of the test machine, the test machine is started, the changes of force, displacement and the like of the right-angle pipe weld joint under the action of uniform continuous tension are recorded, the crack expansion and failure states of the weld joint are conveniently observed, and meanwhile structural check is conducted on a component.

Drawings

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

FIG. 2 is a schematic side view of the present utility model;

FIG. 3 is a schematic top view of the present utility model;

in the figure, 1 is a fixed bottom plate; 2 is a first clamp; 3 is a second clamp; 4 is a right-angle pipe welding seam sample; and 5 is a stretching sleeve.

Detailed Description

The technical scheme of the utility model is further described below with reference to the accompanying drawings and the specific embodiments.

The utility model relates to a rectangular tube welding seam tensile test tool, which comprises a rectangular tube welding seam sample 4, wherein one end of the rectangular tube welding seam sample 4 is connected with a tensile sleeve 5, and the other end of the rectangular tube welding seam sample 4 is positioned between a first clamp 2 and a second clamp 3; the stretching sleeve 5 is connected with an external testing machine chuck; the first clamp 2 and the second clamp 3 are positioned above the fixed bottom plate 1. Wherein, fixed bottom plate 1 is equipped with a plurality of rows of a plurality of columns of screw holes. The first clamp 2 and the second clamp 3 are provided with vertical screw holes; the first clamp 2 is connected with the fixed bottom plate 1, and the second clamp 3 is connected with the fixed bottom plate 1 through bolts penetrating corresponding vertical screw holes and threaded holes. Vertical screw holes of the first clamp 2 and the second clamp 3 are formed in the two end parts. The first clamp 2 and the second clamp 3 are provided with transverse screw holes, and the first clamp 2 and the second clamp 3 are connected through bolts penetrating through the corresponding transverse screw holes. The first clamp 2 and the second clamp 3 are provided with 2 transverse screw holes, and the 2 transverse screw holes are positioned in the middle of the first clamp 2 and the second clamp 3.

The utility model relates to a right-angle pipe weld tensile test tool, which comprises:

the fixed bottom plate 1 is uniformly provided with threaded holes with the same size and is connected with an external testing machine. Different hole fixing positions can be used to connect with the standard testing machine.

The first clamp 2 and the second clamp 3 are connected with the fixed bottom plate 1, and further, the first clamp 2 is fixedly connected with the second clamp 3 through bolts, and clamps the middle right-angle pipe welding seam sample 4. The first clamp 2 and the second clamp 3 are of mirror image structures, the center round hole of the first clamp 2 and the center round hole of the second clamp are matched with the sample, the center of the circle of the first clamp is not on the side line, the center round hole is not semicircular, and when the first clamp 2 and the second clamp 3 clamp the sample through the bolt connection, the first clamp 2 and the second clamp 3 do not contact, and the stable clamping of the sample is ensured, and the offset cannot occur. The connection part of the first clamp 2 and the second clamp 3 and the fixed bottom plate 1 is of an oval structure, the connection part is connected with the fixed bottom plate 1 through bolts, and the stress points of the stretching sleeve 5 on the sample can be changed by moving the first clamp 2 and the second clamp 3 left and right, so that the requirements of different test clamping parts can be met.

And the stretching sleeve 5 is matched with the sample in a round hole at the bottom end, and the upper end of the stretching sleeve is connected with the chuck of the testing machine to provide upward stretching load. The tensile sleeve 5 is driven by the testing machine to move upwards along the vertical direction, and an upward tensile load is provided, so that the test piece 4 of the welding seam of the right-angle pipe is subjected to a stress test.

The bending test working process of the utility model is as follows:

according to the actual use condition of the welding seam sample 4 of the right-angle pipe, the fixing position of the stretching sleeve 5 is selected, one side of the welding seam sample 4 of the right-angle pipe is sleeved into a round hole at the bottom end of the stretching sleeve 5, and the other side is sleeved into the middle of the first clamp 2 and the second clamp 3 and is fixed through 2 transverse threaded nuts; the first clamp 2 and the second clamp 3 are connected to the testing machine together with the fixed bottom plate 1, so that the changes of force, displacement and the like of the welding seam of the right-angle pipe under the action of uniform continuous tension are recorded, the crack expansion and failure states of the welding seam are conveniently observed, and meanwhile, structural check is carried out on the components.

Claims

1. The utility model provides a right-angle pipe welding seam tensile test frock, includes right-angle pipe welding seam sample (4), its characterized in that: one end of the right-angle pipe welding seam sample (4) is connected with the stretching sleeve (5), and the other end of the right-angle pipe welding seam sample (4) is positioned between the first clamp (2) and the second clamp (3); the stretching sleeve (5) is connected with an external testing machine chuck; the first clamp (2) and the second clamp (3) are positioned above the fixed bottom plate (1).

2. The right-angle pipe weld tensile test tooling according to claim 1, wherein: the fixed bottom plate (1) is provided with a plurality of rows and a plurality of columns of threaded holes.

3. The right-angle pipe weld tensile test tooling according to claim 2, wherein: the first clamp (2) and the second clamp (3) are provided with vertical screw holes; the first clamp (2) and the fixed bottom plate (1) and the second clamp (3) and the fixed bottom plate (1) are connected through bolts penetrating through corresponding vertical screw holes and threaded holes.

4. The right-angle pipe weld tensile test tooling according to claim 3, wherein: the vertical screw holes of the first clamp (2) and the second clamp (3) are formed in the end parts of the two ends.

5. The right-angle pipe weld tensile test tooling according to claim 1, wherein: the first clamp (2) and the second clamp (3) are provided with transverse screw holes, and the first clamp (2) and the second clamp (3) are connected through bolts penetrating through the corresponding transverse screw holes.

6. The right angle pipe weld tensile test tooling of claim 5, wherein: the first clamp (2) and the second clamp (3) are provided with 2 transverse screw holes, and the 2 transverse screw holes are positioned in the middle of the first clamp (2) and the second clamp (3).