A weld pipe weld hardness detection support device

Abstract

The utility model discloses a kind of welding pipe fitting weld hardness detection support device, including object carrier, the both sides of object carrier are provided with sliding slot, two limit sliding slots are provided in sliding slot, two oppositely arranged support seats are slidably connected in each sliding slot, the bottom of support seat is integrally formed with the limit boss of the limit sliding slot of upper portion adaptation, limit sliding slot in lower portion is slidably connected with limit plate, the middle portion of limit plate is threadedly connected with top pin, the side of support seat mutually close is provided with arc support groove, the middle portion of arc support groove is rotatably connected with rotating wheel. Advantage lies in, structure is more stable, the levelness of test surface can be effectively guaranteed, and the reliability of detection data can be guaranteed, enough applicable to pipe fitting of different diameters, expand the applicable range of support device, structure design is more reasonable, permanent magnet makes object carrier firmly magnetically fixed on detection platform, provide stable and levelness consistent platform, improve the detection efficiency of pipe fitting weld hardness.

Description

Technical Field

[0001] This utility model belongs to the technical field of auxiliary equipment for pipeline weld testing, and specifically relates to a support device for testing the hardness of welded pipe fittings. Background Technology

[0002] In the fields of power, petrochemical, and pressure vessels, welded pipe fittings are core pressure-bearing components, and the hardness of their welds and heat-affected zones directly affects the structural safety and resistance to stress corrosion. Therefore, in accordance with standards such as GB / T 2654-2008 "Test Method for Hardness of Welded Joints" and DL / T 868-2014 "General Technical Conditions for Electric Welding," accurate hardness testing of the weld area of ​​pipe fittings is essential.

[0003] However, when testing the hardness of pipe welds, the testers usually use temporary fixing methods such as pads and tape to support the pipes. This is time-consuming and labor-intensive, and the support structure is very unstable and cannot guarantee the levelness of the test surface, resulting in insufficient reliability of the test data. It is also possible to test the hardness of pipe welds by using fixed supports. However, most of the current support devices use a "V"-shaped platform to support the pipes. However, in use, the structural design is unreasonable and can only support pipes of fixed size, resulting in low applicability. Utility Model Content

[0004] The purpose of this utility model is to provide a support device for testing the hardness of welded pipe fittings, so as to solve the problems of the existing temporary fixing method for supporting pipe fittings being time-consuming and laborious, having an unstable support structure, poor accuracy of test data, unreasonable structural design of the fixed support device, and low applicability.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: a support device for testing the hardness of welded pipe fittings, comprising a platform, with sliding grooves on both sides of the platform, two limiting grooves in the sliding grooves, and two opposing support seats slidably connected in each sliding groove. The bottom of the support seat is integrally formed with a limiting boss that matches the upper limiting groove, and a limiting plate is slidably connected in the lower limiting groove. A set screw is threadedly connected to the middle of the limiting plate, and an arc-shaped support groove is formed on the side of the support seats that are close to each other. A rotating wheel is rotatably connected to the middle of the arc-shaped support groove.

[0006] Preferably, a permanent magnet is embedded in the bottom surface of the stage.

[0007] Preferably, the surface of the arc-shaped support groove is fixedly connected with an anti-slip rubber layer.

[0008] Preferably, a telescopic rod is fixedly connected between the two support bases.

[0009] The advantages of this utility model are: 1. The support device works in conjunction with the support seat in the slide, eliminating the need for testing personnel to use temporary fixing methods such as pads or tape to support the pipes. This saves time and effort in supporting the pipes, makes the structure more stable, effectively ensures the levelness of the test surface, and ensures the reliability of the test data. 2. The two opposing support seats can slide in the groove, and their sliding distance is limited by the telescopic rod. The arc support groove on the support seat can better match the pipe fitting and can be used for pipe fittings of different diameters, expanding the application range of the support device. The structural design is more reasonable. The bottom of the stage is embedded with a permanent magnet, which can firmly magnetically fix the stage on the detection platform, providing a stable and level platform for the detection of weld hardness. 3. The rotating wheel connected in the middle of the arc-shaped support groove facilitates the rotation of the pipe fitting under test. After a test point is completed, the pipe fitting can be quickly rotated so that the test point of the pipe fitting is turned towards the testing device, which greatly improves the testing efficiency of the weld hardness of the pipe fitting. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] Figure 2 This utility model Figure 1 A magnified schematic diagram of part A in the middle.

[0012] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0013] Figure 4 This utility model Figure 3 A magnified schematic diagram of part B in the middle section.

[0014] Figure 5 This is a schematic diagram of the structure of the support base and the telescopic rod of this utility model.

[0015] Figure 6 This is a schematic diagram of the structure of the support base and the rotating wheel of this utility model.

[0016] The meanings of the reference numerals in the attached drawings are as follows: 1. Platform; 2. Slide; 3. Limiting slide; 4. Support base; 5. Limiting boss; 6. Limiting plate; 7. Top screw; 8. Arc-shaped support groove; 9. Rotary wheel; 10. Permanent magnet; 11. Anti-slip rubber layer; 12. Telescopic rod. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0018] like Figures 1 to 5The present invention relates to a support device for testing the hardness of welded pipe fittings, comprising a platform (1), on both sides of the platform (1) being provided with grooves (2), and two limiting grooves (3) being provided in the grooves (2). Two opposing support seats (4) are slidably connected in each groove (2). The bottom of the support seat (4) is integrally formed with a limiting boss (5) that is adapted to the upper limiting groove (3). A limiting plate (6) is slidably connected in the lower limiting groove (3). A set screw (7) is threadedly connected in the middle of the limiting plate (6). An arc-shaped support groove (8) is provided on the side of the support seats (4) that is close to each other. A rotating wheel (9) is rotatably connected in the middle of the arc-shaped support groove (8).

[0019] To ensure the stability of the stage 1 and to securely fix it to the detection platform with magnetic attraction, while also ensuring the levelness of the stage 1, a permanent magnet 10 is embedded in the bottom surface of the stage 1.

[0020] In order to better support the pipe fittings on the arc-shaped support groove 8, an anti-slip rubber layer 11 is fixedly connected to the surface of the arc-shaped support groove 8.

[0021] In order to limit the sliding distance of the support base 4, a telescopic rod 12 is fixedly connected between the two support bases 4.

[0022] The working process of this utility model is as follows: First, by screwing the set screw 7, the support seat 4 at its top is removed, and the distance between the two opposing support seats 4 is adjusted according to the diameter of the pipe to be tested. The limiting boss 5 at the bottom of the support seat 4 slides in the upper limiting groove 3, so that the distance between the arc-shaped support grooves 8 is adapted to the pipe to be tested; Second, after the adjustment is completed, by screwing the set screw 7, the top of the set screw 7 abuts against the bottom of the support seat 4 to fix the support seat 4; Third, the stage 1 is placed on the platform of the testing device, and the permanent magnet 1 embedded at the bottom of the stage 1... The 0 is securely magnetically fixed to the testing platform, ensuring not only the levelness of the support device and the testing platform but also the stability of the stage 1 during the testing process. Finally, the pipe to be tested is placed on the arc-shaped support groove 8 on the stage 1, and the weld seam of the pipe is aligned with the testing head of the testing device. The hardness of the weld seam is tested by pressing the testing head vertically downward. After the test is completed, the pipe is rotated to test other testing points. During the rotation, the rotating wheel 9 makes the rotation of the pipe smoother, greatly improving the testing efficiency of the weld seam hardness of the pipe and ensuring the reliability of the test data.

[0023] The above description is only a preferred embodiment of the present utility model. The technical solution of the present utility model is not limited thereto. It should be noted that for those skilled in the art, under the technical teachings provided by the present utility model and as common knowledge in the field, other equivalent modifications and improvements can be made, which should also be considered within the protection scope of the present utility model.

Claims

1. A support device for testing the hardness of welded pipe fittings, comprising a stage (1), characterized in that: The platform (1) has sliding grooves (2) on both sides. Two limiting grooves (3) are provided in the sliding grooves (2). Two opposing support seats (4) are slidably connected in each sliding groove (2). The bottom of the support seat (4) is integrally formed with a limiting boss (5) that matches the upper limiting groove (3). A limiting plate (6) is slidably connected in the lower limiting groove (3). A set screw (7) is threaded in the middle of the limiting plate (6). An arc-shaped support groove (8) is provided on the side of the support seats (4) that are close to each other. A rotating wheel (9) is rotatably connected in the middle of the arc-shaped support groove (8).

2. The weld hardness testing support device for welded pipe fittings as described in claim 1, characterized in that: The bottom surface of the stage (1) is inlaid with a permanent magnet (10).

3. The weld seam hardness testing support device for welded pipe fittings as described in claim 2, characterized in that: The surface of the arc-shaped support groove (8) is fixedly connected with an anti-slip rubber layer (11).

4. The weld seam hardness testing support device for welded pipe fittings as described in claim 3, characterized in that: A telescopic rod (12) is fixedly connected between the two support seats (4).

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