A butt joint tool for pipe welding

Abstract

The utility model relates to a kind of butt joint tool for pipeline welding, including bottom plate, the top of bottom plate is equipped with support and limiting plate, limiting plate is equipped with two, two limiting plates are set as V-shaped structure, the angle between two limiting plates can be adjusted and locked, support is equipped with two and symmetrically set, two supports are sequentially set along the length direction of limiting plate, support is equipped with the compacting rod that can be adjusted up and down, compacting rod is located above the center between two limiting plates;The utility model can place two pipelines of different diameter specifications between two limiting plates and butt joint by adjusting the angle between two limiting plates and locking, then compacting rod on two supports is respectively compacted to two pipelines, different diameter specifications of pipeline are conveniently clamped, time is saved, and work efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of pipeline welding technology, specifically to a butt welding fixture for pipeline welding. Background Technology

[0002] In pipeline welding operations, accurate pipe butt joints are a key factor in ensuring welding quality. A welding pipeline butt joint auxiliary device, with patent publication number CN222843436U, includes two symmetrically arranged butt joint fixtures. Each fixture includes a housing and a mass block slidably mounted on the housing along its length. A fixture table is mounted on the mass block, and a slot is provided at the end of the fixture table. A positioning base is inserted into the slot, and the positioning base has a lower half-groove extending along its length. The positioning base and the fixture table are detachably connected by a second bolt, allowing the positioning base to be replaced. By replacing the positioning base with different specifications of lower half-grooves, pipes of different specifications can be clamped.

[0003] However, when the auxiliary device is used to clamp pipes of different diameters by changing the lower half of the groove to different specifications, the positioning base needs to be disassembled and installed, which is time-consuming and reduces work efficiency. Utility Model Content

[0004] The purpose of this invention is to design a butt welding fixture for pipes, which can solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A butt welding fixture for pipes includes a base plate, a bracket and a limiting plate on the top of the base plate, two limiting plates arranged in a V-shape, the angle between the two limiting plates being adjustable and lockable, two brackets arranged symmetrically along the length of the limiting plates, and a vertically adjustable clamping rod on each bracket located above the center between the two limiting plates.

[0007] Furthermore, the bracket is provided with a threaded hole, the surface of the clamping rod is provided with an external thread that is threaded to the threaded hole, and a No. 1 hexagonal screw is fixedly connected to the top of the clamping rod.

[0008] Furthermore, an anti-slip rubber pad is fixedly connected to the bottom end of the clamping rod.

[0009] Furthermore, the top of the base plate is fixedly connected to two fixed frames, and a round shaft is fixedly connected between the two fixed frames. The lower sides of the two limiting plates are rotatably connected to the round shaft. The opposite sides of the two limiting plates are rotatably connected to a support rod. The other end of the support rod is rotatably connected to a slider. The top of the base plate is provided with a drive mechanism that drives the two sliders to move in a direction that brings them closer to each other or away from each other.

[0010] Furthermore, one of the limiting plates has a first side plate and a third side plate fixedly connected to its lower side, and the other limiting plate has a second side plate and a fourth side plate fixedly connected to its lower side. The first side plate, the second side plate, the third side plate, and the fourth side plate are all provided with circular holes that rotatably cooperate with the circular shaft. The first side plate, the second side plate, the third side plate, and the fourth side plate are arranged sequentially along the length direction of the circular shaft.

[0011] Furthermore, two load-bearing frames are fixedly connected to the circular shaft at the top of the base plate. The two load-bearing frames are symmetrically arranged about the middle of the circular shaft and located between the second side plate and the third side plate.

[0012] Furthermore, the drive mechanism includes a rotating shaft and fixed bearing seats. Two fixed bearing seats are provided and fixed on the top of the base plate. The two ends of the rotating shaft are respectively fixed on the inner rings of the two fixed bearing seats. The slider has a through hole for the rotating shaft to pass through. The through holes of the two sliders are provided with the same internal thread. One end of the rotating shaft is provided with a forward thread section that is threaded to the internal thread, and the other end is provided with a reverse thread section that is threaded to the internal thread. One end of the rotating shaft passes through the fixed bearing seat and is fixedly connected with a No. 2 hexagonal screw.

[0013] Furthermore, a load-bearing bearing seat is fixedly attached to the top of the base plate and is fixedly connected to the middle of the rotating shaft.

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

[0015] By adjusting and locking the angle between the two limiting plates, two pipes of different diameters can be placed between the two limiting plates and connected. Then, the two pipes are clamped by the clamping rods on the two brackets, which makes it easy to clamp pipes of different diameters, saves time, and improves work efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a side view of the present invention;

[0019] Figure 3 This is an exploded view of the concealed bracket and clamping rod of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the bracket and the clamping rod in this utility model;

[0021] Figure 5 This is a structural diagram of the limiting plate, fixing frame, round shaft and load-bearing frame in this utility model;

[0022] Figure 6 This is a schematic diagram illustrating the working process of this utility model for connecting pipelines.

[0023] The names of the components shown in the diagram are as follows:

[0024] 1. Base plate; 2. Bracket; 3. Limiting plate; 4. Clamping rod; 5. Threaded hole; 6. No. 1 hexagonal screw; 7. Anti-slip rubber pad; 8. Fixing frame; 9. Round shaft; 10. Support rod; 11. Slider; 12. First side plate; 13. Second side plate; 14. Third side plate; 15. Fourth side plate; 16. Load-bearing frame; 17. Rotating shaft; 18. Fixed bearing seat; 19. Through hole; 20. Forward threaded section; 21. Reverse threaded section; 22. No. 2 hexagonal screw; 23. Load-bearing bearing seat. Detailed Implementation

[0025] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0026] like Figure 1-6As shown, a pipe welding butt welding fixture includes a base plate 1. The top of the base plate 1 is provided with a bracket 2 and a limiting plate 3. There are two limiting plates 3, which are arranged in a V-shape. The angle between the two limiting plates 3 is adjustable and can be locked, allowing pipes 24 of different diameters to be placed between the two limiting plates 3. There are two brackets 2 arranged symmetrically, which are arranged sequentially along the length of the limiting plates 3. The brackets 2 are provided with a vertically adjustable clamping rod 4, which is located above the center between the two limiting plates 3. By adjusting the clamping rod 4, the pipe 24 can be clamped.

[0027] The bracket 2 is provided with a threaded hole 5, and the surface of the clamping rod 4 is provided with an external thread that is threaded to the threaded hole 5. The top of the clamping rod 4 is fixedly connected to a No. 1 hexagonal screw head 6. By using an internal hexagonal handle to turn the No. 1 hexagonal screw head 6, the clamping rod 4 will rotate. Through the cooperation between the external thread and the threaded hole 5, the clamping rod 4 can be adjusted up and down. The bottom of the clamping rod 4 is fixedly connected to an anti-slip rubber pad 7, which plays a buffering role, avoids wear on the pipe 24, and increases friction to prevent the pipe 24 from moving during the welding process and affecting the welding quality.

[0028] Two fixing brackets 8 are fixedly connected to the top of the base plate 1, and a round shaft 9 is fixedly connected between the two fixing brackets 8. A first side plate 12 and a third side plate 14 are fixedly connected to the lower side of one limiting plate 3, and a second side plate 13 and a fourth side plate 15 are fixedly connected to the lower side of the other limiting plate 3. The first side plate 12, the second side plate 13, the third side plate 14, and the fourth side plate 15 are all provided with round holes that rotatably engage with the round shaft 9. 15 are arranged sequentially along the length of the circular shaft 9, allowing one side of the two limiting plates 3 to rotate around the circular shaft 9, thereby adjusting the angle between the two limiting plates 3; the top of the base plate 1 is fixed with two load-bearing frames 16 that are fixedly connected to the circular shaft 9. The two load-bearing frames 16 are symmetrically arranged about the middle of the circular shaft 9 and located between the second side plate 13 and the third side plate 14, further strengthening the support of the circular shaft 9 and preventing the circular shaft 9 from bending, which would affect the angle adjustment between the two limiting plates 3.

[0029] Each of the two limiting plates 3 has a support rod 10 rotatably connected to one side facing away from each other. The other end of each support rod 10 is rotatably connected to a slider 11. The slider 11 can push the limiting plate 3 to rotate via the support rod 10. The angle between the two limiting plates 3 can be adjusted by moving the two sliders 11 closer to or further apart from each other. A driving mechanism is provided on the top of the base plate 1. The driving mechanism includes a rotating shaft 17 and two fixed bearing seats 18. Two fixed bearing seats 18 are provided and fixed to the top of the base plate 1. The two ends of the rotating shaft 17 are respectively fixed to the inner rings of the two fixed bearing seats 18, allowing the rotating shaft 17 to rotate. The slider 11 has a through hole 19 for the rotating shaft 17 to pass through. Both sliders 11 have the same internal thread in their through holes 19. One end of the rotating shaft 17 is provided with a forward-rotating thread section 20 that is connected to the internal thread, and the other end is provided with a reverse-rotating thread section 21 that is connected to the internal thread. When the rotating shaft 17 rotates, the two sliders 11 can move in opposite directions relative to each other, thereby allowing the two sliders 11 to move towards or away from each other. One end of the rotating shaft 17 passes through the fixed bearing seat 18 and is fixedly connected to a No. 2 hexagonal screw head 22. By using the internal hexagonal handle to turn the No. 2 hexagonal screw head 22, the rotating shaft 17 is driven to rotate. The top of the base plate 1 is fixedly provided with a load-bearing bearing seat 23 that is fixedly connected to the middle of the rotating shaft 17, further strengthening the support of the rotating shaft 17 and preventing the rotating shaft 17 from bending, which would affect the angle adjustment between the two limiting plates 3.

[0030] Working principle:

[0031] like Figure 3 and 6 As shown, during the use of the docking fixture, firstly, the No. 2 hexagonal screw head 22 is turned by using the hexagonal handle to drive the rotating shaft 17 to rotate, allowing the two sliders 11 connected to the rotating shaft to move towards or away from each other, thereby adjusting the angle between the two limiting plates 3. After the angle is adjusted, the two pipes 24 to be welded are placed between the two limiting plates 3 and docked. Then, the No. 1 hexagonal screw head 6 is turned by using the hexagonal handle to drive the clamping rod 4 to rotate. Through the cooperation of the external thread and the threaded hole 5, the clamping rod 4 can be lowered and clamped onto the pipe 24. After the pipe 24 is clamped, welding can be performed, which is convenient for clamping pipes of different diameters, saving time and improving work efficiency. During the welding process, the upper half of the docking of the two pipes 24 can be welded first. After the welding is completed, the clamping rod 4 is released, and then the pipe 24 is rotated to continue welding the unwelded joint (the clamping rod 4 is no longer needed to clamp during the welding process).

[0032] 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 modifications 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 pipe welding butt tool characterized by, Includes a base plate (1), the top of the base plate (1) is provided with a bracket (2) and a limiting plate (3), there are two limiting plates (3), the two limiting plates (3) are arranged in a V-shape, the angle between the two limiting plates (3) can be adjusted and locked, there are two brackets (2) and they are arranged symmetrically, the two brackets (2) are arranged sequentially along the length direction of the limiting plate (3), the brackets (2) are provided with a pressing rod (4) that can be adjusted up and down, the pressing rod (4) is located above the center between the two limiting plates (3).

2. The pipe welding butt tooling of claim 1, wherein, The bracket (2) is provided with a threaded hole (5), and the surface of the clamping rod (4) is provided with an external thread that is threaded to the threaded hole (5). The top of the clamping rod (4) is fixedly connected with a No. 1 hexagonal screw head (6).

3. The pipe welding butt tooling of claim 1, wherein, The bottom end of the clamping rod (4) is fixedly connected to an anti-slip rubber pad (7).

4. The pipe welding butt tooling of claim 1, wherein, The top of the base plate (1) is fixedly connected to two fixed brackets (8), and a round shaft (9) is fixedly connected between the two fixed brackets (8). The lower sides of the two limiting plates (3) are rotatably connected to the round shaft (9). The opposite sides of the two limiting plates (3) are rotatably connected to a support rod (10). The other end of the support rod (10) is rotatably connected to a slider (11). The top of the base plate (1) is provided with a drive mechanism that drives the two sliders (11) to move in the direction of approaching or moving away from each other.

5. The pipe welding butt tooling of claim 4, wherein, One of the limiting plates (3) is fixedly connected to the lower side of the first side plate (12) and the third side plate (14), and the other limiting plate (3) is fixedly connected to the lower side of the second side plate (13) and the fourth side plate (15). The first side plate (12), the second side plate (13), the third side plate (14) and the fourth side plate (15) are all provided with round holes that rotatably cooperate with the round shaft (9). The first side plate (12), the second side plate (13), the third side plate (14) and the fourth side plate (15) are arranged sequentially along the length direction of the round shaft (9).

6. The pipe welding butt tooling of claim 5, wherein, Two load-bearing frames (16) are fixed to the top of the base plate (1) and are fixedly connected to the round shaft (9). The two load-bearing frames (16) are symmetrically arranged about the middle of the round shaft (9) and located between the second side plate (13) and the third side plate (14).

7. The butt welding fixture for pipes according to claim 4, characterized in that, The drive mechanism includes a rotating shaft (17) and a fixed bearing seat (18). There are two fixed bearing seats (18) and they are fixed on the top of the base plate (1). The two ends of the rotating shaft (17) are respectively fixed on the inner rings of the two fixed bearing seats (18). The slider (11) is provided with a through hole (19) for the rotating shaft (17) to pass through. The through holes (19) of the two sliders (11) are provided with the same internal thread. One end of the rotating shaft (17) is provided with a forward thread section (20) that is threaded to the internal thread, and the other end is provided with a reverse thread section (21) that is threaded to the internal thread. One end of the rotating shaft (17) passes through the fixed bearing seat (18) and is fixedly connected with a No. 2 hexagonal screw head (22).

8. The pipe welding butt tooling of claim 7, wherein, The top of the base plate (1) is fixed with a load-bearing bearing seat (23) that is fixedly connected to the middle of the rotating shaft (17).

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