A pipe welding aid

Abstract

The utility model discloses a kind of pipeline welding auxiliary tools, it is related to welding auxiliary equipment technical field.The tool mainly includes mirror surface clamp, stainless steel mirror surface, metal shaped hose and U-shaped clamp.Mirror surface clamp is fixed mirror surface by clamping ring and buckle, it is convenient to replace quickly.U-shaped clamp is equipped with locking screw rod, wing nut and concave anti-skid block with trapezoidal groove, it is suitable for the stable clamping of non-magnetic or corroded pipeline.Metal shaped hose is connected mirror surface clamp and U-shaped clamp respectively by double universal joint at both ends, realize mirror surface 360° all-around flexible positioning.LED light is integrated on mirror surface clamp to provide light supplement.The utility model solves the problem that existing tool is in narrow space magnetic suction failure, insufficient illumination, mirror surface is easily contaminated and damaged and angle adjustment is limited, with the advantages of clamping reliable, field of vision clear, high temperature resistant, maintenance convenient, significantly improve the efficiency and quality of pipeline welding operation.

Description

Technical Field

[0001] This utility model relates to the field of welding auxiliary equipment technology, specifically to a pipeline welding auxiliary tool. Background Technology

[0002] In the installation or maintenance of fixed dense pipe banks in thermal power plant boilers, there are weld blind spots between pipes. During the welding process, the weld pool on the back of the pipe cannot be directly seen, making it impossible to perform welding operations normally. The weld blind spots can be reflected into the welder's line of sight through a mirror, so that the welder can observe and operate, thereby completing the welding operation with high quality.

[0003] Ordinary welding mirrors, originally used for welding assistance, have many drawbacks: those with magnetic bases cannot be properly attracted to non-ferromagnetic pipes or pipes with severe rust and poor magnetism; ordinary glass or stainless steel mirrors are prone to cracking or surface contamination when exposed to the high temperature and slag of welding, making it difficult to observe the molten pool, and the mirrors cannot be easily replaced; when working in narrow areas, the on-site lighting cannot illuminate the weld seam area on the back of the pipe; the use of ordinary glass mirrors is affected by the high temperature of the welding arc, which will cause the mirror surface to be contaminated and scratched, making it difficult to observe, and the mirror surface is extremely easy to break under the high temperature of the welding arc; damage to the mirror surface will scrap the entire tool set, increasing costs; the angle adjustment function is limited, not reaching 360° arbitrary adjustment, which restricts the welder's viewing angle, greatly increasing the welding difficulty and making it impossible to guarantee welding quality. Utility Model Content

[0004] The purpose of this utility model is to provide an auxiliary tool for pipe welding to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A pipe welding auxiliary tool includes a clamping assembly, an observation assembly, and a connection and adjustment assembly;

[0007] The clamping assembly includes a U-shaped clamp, a locking screw, a washer, and a wing nut. The U-shaped clamp includes a base plate and two side plates. The two side plates are perpendicular to the base plate and parallel to each other. One of the side plates has a threaded hole along its thickness direction. A locking screw is screwed into the threaded hole. A washer is fixedly provided at one end of the locking screw between the two side plates, and a wing nut is fixedly connected to the other end of the locking screw.

[0008] The observation component includes a mirror clamp and a mirror. The mirror clamp includes a retaining ring and a buckle. The shape of the retaining ring matches the edge contour of the mirror and is set around the edge of the mirror. The buckle is located on one side of the retaining ring and is used to fasten the retaining ring to the edge of the mirror. The mirror is made of stainless steel.

[0009] The connection and adjustment assembly includes a metal fixed hose and a universal joint. One end of the metal fixed hose is connected to a U-shaped clamp through a universal joint, and the other end of the metal fixed hose is also connected to a retaining ring through a universal joint.

[0010] Furthermore, the U-shaped clamp is provided with a concave anti-slip block to increase clamping stability. The concave anti-slip block is located on the side plate opposite to the pad, and the concave anti-slip block has a trapezoidal groove on the side facing the pad, with the groove opening width being greater than the groove bottom width.

[0011] Furthermore, the two sides of the trapezoidal groove have a stepped structure.

[0012] Furthermore, the observation component also includes an LED light, which is connected to the clamp.

[0013] Furthermore, the universal joint is a double universal joint.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. The U-shaped clamp assembly can securely clamp non-magnetic pipes and pipes with severe rust and poor magnetic properties during welding operations.

[0016] 2. The use of independent stainless steel mirror and quick clamps makes it easier to replace damaged mirrors without any auxiliary tools. In addition, the stainless steel mirror is resistant to high welding temperatures and is not easily damaged.

[0017] 3. The use of metal-shaped flexible tubing and double ball joints allows for 360° adjustment of the mirror surface, overcoming the limitations of actual space and providing clear vision, convenient and controllable operation.

[0018] 4. LED lights can provide supplemental lighting in situations of insufficient illumination to meet welding requirements, and can be used to inspect blind spots in the weld after welding is completed. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] In the diagram, 1-LED light, 2-mirror, 3-universal joint, 4-metal shaping hose, 5-concave anti-slip block, 501-trapezoidal groove, 6-locking screw, 601-washer, 602-wing nut, 7-U-shaped clamp, 701-base plate, 702-side plate, 8-mirror clamp, 801-clamp ring, 802-buckle. Detailed Implementation

[0021] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0022] A pipe welding auxiliary tool includes a clamping assembly, an observation assembly, and a connection and adjustment assembly.

[0023] The clamping assembly forms the base fixing end of the tool and is used to clamp onto the steel pipe above or below the weld. The clamping assembly includes a U-shaped clamp 7, a locking screw 6, a washer 601, and a wing nut. The U-shaped clamp 7 includes a base plate 701 and two side plates 702, both of which are perpendicular to the base plate 701 and parallel to each other. One of the side plates 702 has a threaded hole along its thickness direction, and the locking screw 6 is screwed into the threaded hole. A washer 601 is fixedly installed at one end of the locking screw 6 between the two side plates 702 to increase the contact area with the pipe, making the clamping more stable and protecting the pipe. The other end of the locking screw 6 is fixedly connected to a wing nut for easy manual tightening or loosening by the operator.

[0024] The U-shaped clamp 7 is equipped with a concave anti-slip block 5 to increase clamping stability. The concave anti-slip block 5 is located on the side plate 702 opposite to the gasket 601. The side of the concave anti-slip block 5 facing the gasket 601 has a trapezoidal groove 501. The width of the groove opening of the trapezoidal groove 501 is greater than the width of the groove bottom, forming a structure that is wider at the top and narrower at the bottom, in order to better accommodate different pipe diameters and increase clamping stability. In a preferred embodiment, the two sides of the trapezoidal groove 501 have a stepped structure, which helps to further increase the friction with the pipe surface and prevent slippage during clamping or welding vibration.

[0025] The observation assembly includes a mirror clamp 8 and a mirror 2. The mirror clamp 8 is used to fix and quickly replace the mirror 2. The mirror clamp 8 includes a retaining ring 801 and a clip 802. The shape of the retaining ring 801 matches the edge contour of the mirror 2 and is set around the edge of the mirror 2. The clip 802 is located on one side of the retaining ring 801 and is used to fasten the retaining ring 801 to the edge of the mirror 2. Its design allows for quick fastening and opening. When the clip 802 is fastened, the retaining ring 801 firmly holds the mirror 2. When the mirror 2 needs to be replaced, simply open the clip 802 to remove the old mirror 2 and insert the new mirror 2 without any auxiliary tools. The mirror 2 is made of stainless steel. Stainless steel mirror 2 has the characteristics of high temperature resistance, not being easily broken, and not being contaminated or scratched by welding spatter. It is particularly suitable for use in the high temperature and harsh environment of welding arc and can remain clear for a long time, making it easy to observe the weld pool. An LED light 1 is also provided on the mirror clamp 8, which is usually installed on the outside of the clamp ring 801 or at an appropriate position. The function of the LED light 1 is to provide local lighting in narrow welding areas with insufficient light, such as the back of a pipe, to ensure that the welder can clearly observe the weld position and the state of the molten pool. This not only meets the observation needs during the welding process, but also facilitates the quality inspection of the blind areas of the weld after welding.

[0026] The connection and adjustment components include a metal-shaped flexible hose 4 and a universal joint 3. The metal-shaped flexible hose 4 is malleable and can be bent into the required shape according to the space requirements on site, and can maintain that shape, providing stable support for the mirror 2. One end of the metal-shaped flexible hose is fixedly connected to the outside of the side plate 702 or the bottom plate 701 of the U-shaped clamp 7 without the locking screw 6 installed via a universal joint 3. The other end of the metal-shaped flexible hose is also connected to the retaining ring 801 via a universal joint 3. The universal joints 3 at both ends of the metal-shaped flexible hose 4 can greatly increase the range of motion of the mirror 2 and the U-shaped clamp 7. In this embodiment, preferably, the universal joint 3 is a double universal joint. This structure can more effectively compensate for angular deviations, achieve a wider range and more flexible adjustment, and ensure that the mirror 2 can be precisely positioned and adjusted at nearly 360° arbitrary angles.

[0027] The usage process of this utility model is as follows: During operation, firstly, the U-shaped clamp 7 is clamped at a suitable position near the pipe to be welded, such as on an adjacent pipe. By tightening the wing nut 602, the locking screw 6 is moved forward, causing the gasket 601 and the trapezoidal groove 501 of the concave anti-slip block 5 to work together to firmly clamp the pipe. Then, according to the actual position and space constraints of the weld blind area, the metal shaping hose 4 is bent and the angle of the two universal joints 3 is adjusted so that the mirror 2 is precisely aligned with the weld blind area to be observed. The LED light 1 is turned on to provide illumination. The welder can then observe and operate the weld pool on the back side, which was originally not directly visible, through the clear image reflected by the mirror 2. After welding is completed, the weld quality can be checked again through the mirror 2. If the mirror 2 is damaged, it can be quickly replaced by simply opening the buckle 802.

[0028] Through the above-mentioned structural design, this utility model effectively solves the problems of magnetic attraction failure, insufficient lighting, easy damage and contamination of mirror 2, and limited angle adjustment in the prior art, and significantly improves the efficiency and quality of pipeline welding operations.

Claims

1. A pipe welding auxiliary tool, characterized in that, Includes clamping components, observation components, and connection and adjustment components; The clamp assembly includes a U-shaped clamp (7), a locking screw (6), a washer (601), and a wing nut. The U-shaped clamp (7) includes a base plate (701) and two side plates (702). The two side plates (702) are perpendicular to the base plate (701) and parallel to each other. One of the side plates (702) has a threaded hole along its thickness direction. The locking screw (6) is screwed into the threaded hole. The washer (601) is fixedly provided at one end of the locking screw (6) between the two side plates (702), and the wing nut is fixedly connected to the other end of the locking screw (6). The observation component includes a mirror clamp (8) and a mirror (2). The mirror clamp (8) includes a retaining ring (801) and a buckle (802). The shape of the retaining ring (801) matches the edge contour of the mirror (2) and is set around the edge of the mirror (2). The buckle (802) is located on one side of the retaining ring (801) and is used to fasten the retaining ring (801) to the edge of the mirror (2). The mirror (2) is made of stainless steel. The connection and adjustment assembly includes a metal fixed hose (4) and a universal joint (3). One end of the metal fixed hose is connected to a U-shaped clamp (7) through a universal joint (3), and the other end of the metal fixed hose is also connected to a retaining ring (801) through a universal joint (3).

2. The pipe welding auxiliary tool according to claim 1, characterized in that, The U-shaped clamp (7) is provided with a concave anti-slip block (5) to increase clamping stability. The concave anti-slip block (5) is provided on the side plate (702) opposite to the pad (601). The concave anti-slip block (5) is provided with a trapezoidal groove (501) on the side facing the pad (601). The width of the groove opening of the trapezoidal groove (501) is greater than the width of the groove bottom.

3. The pipe welding auxiliary tool according to claim 2, characterized in that, The trapezoidal groove (501) has a stepped structure on both sides.

4. The pipe welding auxiliary tool according to claim 3, characterized in that, The observation component also includes an LED light (1), which is connected to the clamp.

5. A pipe welding auxiliary tool according to claim 4, characterized in that, The universal joint (3) is a double universal joint.

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