Positioning device for pipeline welding

Abstract

The utility model discloses a positioning device for pipeline welding, belongs to the technical field of pipeline welding, and solves the problems of repeated and tedious pipeline welding operation and poor welding quality caused by an existing positioning mode. The clamping mechanism comprises an upper clamping part, a lower clamping part and a connecting part. The lower clamping part is arranged at the top end of the supporting mechanism. One end of the connecting part is connected with the upper clamping part, and the upper clamping part and the lower clamping part are symmetrically arranged. The other end of the connecting part is connected with the adjusting mechanism which is connected with the supporting mechanism. And notches are formed in the corresponding positions of the middle parts of the upper clamping part and the lower clamping part, so that the joint of the two to-be-welded pipelines can be exposed outside. The adjusting mechanism can adjust the distance between the upper clamping part and the lower clamping part so as to clamp the ends of the two to-be-welded pipelines, and therefore positioning of the to-be-welded pipelines is achieved. The welding tool is easy to operate and rapid in positioning, formal welding can be started after positioning is completed, the welding quality can be guaranteed, and repeated welding operation is avoided.

Description

Technical Field

[0001] This application relates to the field of pipe welding technology, and in particular to a positioning device for pipe welding. Background Technology

[0002] Currently, many companies have installed various pipelines for conveying different media. When welding high-pressure pipelines, it is necessary to first bevel the ends of the two pipelines to be welded, and then align the two pipelines with their axis centers. The distance between the ends of the two pipelines needs to be maintained between 0.5mm and 10mm so that the argon arc welding wire can perform the root pass welding.

[0003] To ensure welding quality, after aligning the ends of the two pipes, they are first connected by spot welding to achieve pipe positioning. However, this positioning method requires cleaning the spot welding areas one by one before the root pass welding can be performed, making the pipe welding process extremely inconvenient and resulting in repetitive and tedious welding operations. In addition, if spot welding areas are missed during the cleaning process, the argon arc welding wire will produce defects such as different metal melting points and incomplete fusion at the bevels of the two pipes, seriously affecting the welding quality. Utility Model Content

[0004] This application provides a positioning device for pipe welding, which solves the problems of repetitive and cumbersome pipe welding operations and poor welding quality caused by current positioning methods.

[0005] This utility model provides a positioning device for pipe welding, characterized in that it includes a support mechanism, an adjustment mechanism, and a clamping mechanism; the clamping mechanism includes an upper clamping part, a lower clamping part, and a connecting part; the lower clamping part is disposed at the top of the support mechanism; one end of the connecting part is connected to the upper clamping part, and the upper clamping part and the lower clamping part are symmetrically arranged; the other end of the connecting part is connected to the adjustment mechanism, and the adjustment mechanism is connected to the support mechanism; notches are provided at corresponding positions in the middle of the upper clamping part and the lower clamping part to expose the connection point of the two pipes to be welded; the adjustment mechanism can adjust the distance between the upper clamping part and the lower clamping part to clamp the ends of the two pipes to be welded, thereby achieving the positioning of the pipes to be welded.

[0006] In one possible implementation, the support mechanism includes a support rod; the lower clamping portion is disposed at the top end of the support rod.

[0007] In one possible implementation, the adjusting mechanism includes an adjusting nut; the adjusting nut is connected to the end of the connecting portion opposite to the upper clamping portion; the outer wall of the support rod is provided with a thread that matches the adjusting nut, and the adjusting nut and the support rod are threadedly connected.

[0008] In one possible implementation, the adjusting mechanism further includes an adjusting structure; the adjusting structure is disposed at one end of the support rod opposite to the lower clamping portion and is configured to drive the support rod to rotate.

[0009] In one possible implementation, the adjustment structure includes a retaining ring and a handle; the retaining ring is fixed to one end of the support rod opposite to the lower clamping portion; the handle and the retaining ring are connected.

[0010] In one possible implementation, the upper clamping part is detachably connected to the connecting part; the lower clamping part is detachably connected to the top of the support mechanism.

[0011] In one possible implementation, the upper clamping part is movably connected to the connecting part; the lower clamping part is movably connected to the top of the support mechanism.

[0012] One or more technical solutions provided in the embodiments of this utility model have at least the following technical effects or advantages:

[0013] This utility model provides a positioning device for pipe welding, which includes a support mechanism, an adjustment mechanism, and a clamping mechanism. The clamping mechanism includes an upper clamping part, a lower clamping part, and a connecting part. The lower clamping part is located at the top of the support mechanism. One end of the connecting part is connected to the upper clamping part, and the upper and lower clamping parts are symmetrically arranged. The other end of the connecting part is connected to the adjustment mechanism, which is connected to the support mechanism. Notches are provided at corresponding positions in the middle of the upper and lower clamping parts to expose the joint of the two pipes to be welded. The adjustment mechanism can adjust the distance between the upper and lower clamping parts to clamp the ends of the two pipes to be welded, thereby achieving the positioning of the pipes. In practical applications, first ensure that the two pipes to be welded are located between the upper and lower clamping parts, and then adjust the distance between the upper and lower clamping parts using the adjustment mechanism to clamp the ends of the two pipes to be welded, thereby achieving the positioning of the pipes, while simultaneously adjusting the bevel distance between the two pipes to meet the requirements. The positioning device of this application is simple to operate and quick to position. After positioning is completed, formal welding can begin. This not only ensures welding quality but also avoids repeated welding operations. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A schematic diagram of the positioning device for pipe welding provided in an embodiment of this application;

[0016] Figure 2 Schematic diagram of the upper clamping part, lower clamping part, and pipe to be welded provided in the embodiments of this application. Figure 1 ;

[0017] Figure 3 Schematic diagram of the upper clamping part, lower clamping part, and pipe to be welded provided in the embodiments of this application. Figure 2 ;

[0018] Figure 4 Schematic diagrams of lower clamping parts of different sizes provided in embodiments of this application.

[0019] Icons: 1-Support mechanism; 11-Support rod; 2-Adjustment mechanism; 21-Adjusting nut; 22-Adjustment structure; 221-Fixing ring; 222-Handle; 3-Clamping mechanism; 31-Upper clamping part; 32-Lower clamping part; 33-Connecting part; 4-Pipe to be welded; 5-Notch. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0021] In the description of the embodiments of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They 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. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, the terms "installed," "connected," and "linked" 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; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.

[0022] like Figures 1-4 As shown, this utility model embodiment provides a positioning device for pipe welding, which includes a support mechanism 1, an adjustment mechanism 2, and a clamping mechanism 3. The clamping mechanism 3 includes an upper clamping part 31, a lower clamping part 32, and a connecting part 33. In practical applications, multiple positioning devices of this application can be used when multiple pipes need to be positioned simultaneously, allowing workers to weld multiple pipes at once, thereby improving welding efficiency. Specifically, this application can be used for positioning during pipe installation, and the positioning effect is as follows: Figure 2 As shown; this application can also be used for positioning during pipeline damage and defect repair, and the positioning effect is as follows. Figure 3 As shown.

[0023] Continue to refer to Figure 1 As shown, the lower clamping part 32 is disposed at the top of the support mechanism 1. One end of the connecting part 33 is connected to the upper clamping part 31, and the upper clamping part 31 and the lower clamping part 32 are symmetrically arranged. The other end of the connecting part 33 is connected to the adjusting mechanism 2, and the adjusting mechanism 2 is connected to the support mechanism 1. Figure 1 As shown, the specific structure of the positioning component is a C-shaped, upward and downward curved design.

[0024] like Figure 2 As shown, notches 5 are provided at corresponding positions in the middle of the upper clamping part 31 and the lower clamping part 32 to expose the connection between the two pipes 4 to be welded. Specifically, the notches 5 are provided to ensure that the weld seam is fully exposed while positioning the pipes 4 to be welded, thereby achieving the purpose of welding.

[0025] In this embodiment, the adjusting mechanism 2 can adjust the distance between the upper clamping part 31 and the lower clamping part 32 to clamp the ends of the two pipes 4 to be welded, thereby achieving the positioning of the pipes 4. In practical applications, first ensure that the two pipes 4 to be welded are located between the upper clamping part 31 and the lower clamping part 32, and then adjust the distance between the upper clamping part 31 and the lower clamping part 32 by the adjusting mechanism 2 to clamp the ends of the two pipes 4 to be welded, thereby achieving the positioning of the pipes. At the same time, adjust the bevel distance between the two pipes 4 to be welded to between 0.5mm and 10mm. Preferably, the bevel distance between the two pipes 4 to be welded is 3mm, 4mm, and 5mm. The positioning device of this application is simple to operate and quick to position. After positioning is completed, formal welding can begin, which not only ensures the welding quality but also avoids repeated welding operations.

[0026] This utility model provides a positioning device for pipe welding, which includes a support mechanism 1, an adjustment mechanism 2, and a clamping mechanism 3. The clamping mechanism 3 includes an upper clamping part 31, a lower clamping part 32, and a connecting part 33. The lower clamping part 32 is located at the top of the support mechanism 1. One end of the connecting part 33 is connected to the upper clamping part 31, and the upper clamping part 31 and the lower clamping part 32 are symmetrically arranged. The other end of the connecting part 33 is connected to the adjustment mechanism 2, which is connected to the support mechanism 1. Notches 5 are provided at corresponding positions in the middle of the upper clamping part 31 and the lower clamping part 32 to expose the connection point of the two pipes 4 to be welded. The adjustment mechanism 2 can adjust the distance between the upper clamping part 31 and the lower clamping part 32 to clamp the ends of the two pipes 4 to be welded, thereby achieving the positioning of the pipes 4 to be welded. In practical applications, first ensure that the two pipes 4 to be welded are positioned between the upper clamping part 31 and the lower clamping part 32. Then, adjust the distance between the upper clamping part 31 and the lower clamping part 32 using the adjusting mechanism 2 to clamp the ends of the two pipes 4, thereby achieving pipe positioning. Simultaneously, adjust the bevel distance between the two pipes 4 to meet the requirements. The positioning device of this application is simple to operate and provides rapid positioning. After positioning, formal welding can begin, ensuring welding quality and avoiding repeated welding operations.

[0027] In this embodiment, the support mechanism 1 includes a support rod 11. A lower clamping part 32 is disposed at the top end of the support rod 11. Specifically, the support rod 11 is used to support the lower clamping part 32.

[0028] like Figure 1 As shown, the adjusting mechanism 2 includes an adjusting nut 21. The adjusting nut 21 is connected to one end of the connecting part 33 away from the upper clamping part 31. The outer wall of the support rod 11 is provided with a thread that matches the adjusting nut 21, and the adjusting nut 21 and the support rod 11 are threadedly connected. In practical applications, when the support rod 11 is rotated in the forward direction, the support rod 11 rotates within the adjusting nut 21 to gradually rise, thereby driving the lower clamping part 32 to move closer to the upper clamping part 31, thus clamping the pipe 4 to be welded; when the support rod 11 is rotated in the reverse direction, the support rod 11 rotates within the adjusting nut 21 to gradually descend, thereby driving the lower clamping part 32 to move away from the upper clamping part 31, thus releasing the pipe 4 to be welded.

[0029] In this embodiment, the adjustment mechanism 2 further includes an adjustment structure 22. The adjustment structure 22 is disposed at one end of the support rod 11 away from the lower clamping part 32 and is configured to drive the support rod 11 to rotate. Specifically, after the adjustment structure 22 is provided, the support rod 11 can be easily rotated without the need for external tools, making the rotation of the support rod 11 more convenient and effortless.

[0030] like Figure 1As shown, the adjustment structure 22 includes a retaining ring 221 and a handle 222. The retaining ring 221 is fixed to one end of the support rod 11 away from the lower clamping part 32. The handle 222 is connected to the retaining ring 221. Specifically, when it is necessary to adjust the distance between the upper clamping part 31 and the lower clamping part 32, the support rod 11 is rotated by turning the handle 222. The structure is simple and easy to operate.

[0031] In this embodiment, the upper clamping part 31 is detachably connected to the connecting part 33. The lower clamping part 32 is detachably connected to the top of the support mechanism 1. Specifically, the detachable connection allows the sizes of the upper clamping part 31 and the lower clamping part 32 to be changed at any time according to the diameter of the pipe 4 to be welded, thereby improving the applicability and cost of the positioning device. Furthermore, Figure 4 The lower clamping part 32 of different sizes is shown.

[0032] In this embodiment, the upper clamping part 31 is movably connected to the connecting part 33. The lower clamping part 32 is movably connected to the top of the support mechanism 1. Specifically, the movable connection allows the angles of the upper clamping part 31 and the lower clamping part 32 to be adjusted according to different pipe angles, thereby improving the applicability of the positioning device.

[0033] The various embodiments in this specification are described in a progressive manner. For the same or similar parts between the various embodiments, please refer to each other. Each embodiment focuses on describing the differences from other embodiments.

[0034] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of this application.

Claims

1. A positioning device for pipe welding, characterized in that, The supporting mechanism (1), the adjusting mechanism (2) and the clamping mechanism (3) are included. The clamping mechanism (3) includes an upper clamping part (31), a lower clamping part (32) and a connecting part (33). The lower clamping part (32) is arranged at the top end of the supporting mechanism (1). One end of the connecting part (33) is connected with the upper clamping part (31), and the upper clamping part (31) and the lower clamping part (32) are symmetrically arranged. The other end of the connecting part (33) is connected with the adjusting mechanism (2), and the adjusting mechanism (2) is connected with the supporting mechanism (1). Corresponding positions of the middle parts of the upper clamping part (31) and the lower clamping part (32) are provided with openings (5) so that the connection parts of the two pipes to be welded (4) can be exposed.

2. The positioning device for pipe welding according to claim 1, characterized in that, The adjusting mechanism (2) can adjust the distance between the upper clamping part (31) and the lower clamping part (32) to clamp the end parts of the two pipes to be welded (4), thereby realizing the positioning of the pipes to be welded (4). The supporting mechanism (1) includes a supporting rod (11).

3. The positioning device for pipe welding according to claim 2, characterized in that, The lower clamping part (32) is arranged at the top end of the supporting rod (11). The adjusting mechanism (2) includes an adjusting nut (21). The adjusting nut (21) is connected with one end of the connecting part (33) away from the upper clamping part (31).

4. The positioning device for pipe welding according to claim 3, characterized in that, The outer wall of the supporting rod (11) is provided with threads matched with the adjusting nut (21), and the adjusting nut (21) and the supporting rod (11) are threadedly connected. The adjusting mechanism (2) further includes an adjusting structure (22).

5. The positioning device for pipe welding according to claim 4, characterized in that, The adjusting structure (22) is arranged at one end of the supporting rod (11) away from the lower clamping part (32) and is configured to drive the supporting rod (11) to rotate. The adjusting structure (22) includes a fixing ring (221) and a handle (222). The fixing ring (221) is fixed at one end of the supporting rod (11) away from the lower clamping part (32).

6. The positioning device for pipe welding of claim 1, wherein, The handle (222) is connected with the fixing ring (221). The upper clamping part (31) and the connecting part (33) are detachably connected.

7. The positioning device for pipe welding of claim 1, wherein, The lower clamping part (32) and the top part of the supporting mechanism (1) are detachably connected. The upper clamping part (31) and the connecting part (33) are movably connected. The lower clamping part (32) and the top part of the supporting mechanism (1) are movably connected.

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