Pipe body butt welding equipment

Abstract

The invention discloses pipe body butt welding equipment, which belongs to the technical field of welding and comprises a support, a welding assembly and a clamping device. The welding assembly comprises a welding gun and a rail for the welding gun to move, the rail is composed of an upper clamping ring and a lower clamping ring which can move oppositely or oppositely, the upper clamping ring and the lower clamping ring are in butt joint to form a continuous circular rail, and the welding gun can move along the rail. A sliding way is arranged outside the upper clamping ring and the lower clamping ring, a moving body is sleeved outside the upper clamping ring and the lower clamping ring, a welding gun is installed on the moving body, a driving gear is arranged in the moving body, teeth are arranged in the sliding way, a motor drives the gear to enable the moving body to move along the clamping rings, clamping grooves are formed in the inner rings of the clamping rings, and clamping wheels of the moving body roll in the clamping grooves. By means of the design of separation and butt joint of the clamping rings, pipe fitting installation does not need rail penetrating and is suitable for various scenes, the rails are gapless after butt joint, the clamping wheels are matched for guiding, 360-degree welding of pipe fittings is achieved, solder skips and insufficient solder are avoided, and the welding quality is improved.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, and specifically to a pipe butt welding equipment. Background Technology

[0002] Traditional welding torch moving rails are mostly fixed, integrated structures that cannot be disassembled. This means that when installing pipe fittings, the fittings must be slowly inserted from one end of the rail, which is not only cumbersome but also limited by the length and weight of the fittings.

[0003] Meanwhile, traditional equipment struggles to guarantee the precision of track alignment for 360-degree circumferential welding of pipe fittings, easily leading to gaps or misalignments. This causes the welding torch to jam and deviate from its trajectory during movement, preventing the formation of a continuous and complete welding path. Consequently, defects such as incomplete welds and weak welds occur at the weld joint, affecting the pipe fitting's sealing performance and structural strength. Furthermore, traditional equipment requires replacing the entire track and clamping assembly for different pipe fitting specifications, resulting in poor versatility. This not only increases equipment investment costs but also wastes significant replacement and debugging time, reducing production efficiency. Moreover, most traditional equipment relies on manual control of the welding torch's movement speed and angle, making welding quality highly dependent on the operator's skill level. This makes it difficult to ensure consistency in mass production, resulting in relatively low overall welding efficiency. Summary of the Invention

[0004] To address the aforementioned technical shortcomings, the purpose of this invention is to provide a pipe butt welding device that allows the clamping device to be separated into parts to provide installation space for the pipe fittings during installation, and forms a ring-shaped track for the welding torch to move during welding.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a pipe butt welding device, including a support, and further comprising: A welding assembly, wherein the welding torch is mounted on a support; A clamping device, wherein the clamping device is provided with clamping positions for fixing the pipe fitting, and the number of clamping devices is at least two, which are distributed on both sides of the welding assembly; The welding assembly includes a welding torch and a track for the torch to move. The track includes an upper clamping ring and a lower clamping ring that can move relative to or towards each other. When the upper and lower clamping rings are in contact, they form a continuous circular track. The welding torch can move on this continuous track. During the movement of the welding torch, the end of the welding torch...

[0006] Preferably, both the upper and lower clamping rings have slides on their outer ring surfaces, and a movable body is sleeved on the outside of the upper and lower clamping rings. The welding torch is mounted on the movable body, which is sleeved on the upper and lower clamping rings and can move on the upper and lower clamping rings.

[0007] Preferably, a drive gear is rotatably mounted inside the moving body, the slide groove is provided with teeth that mesh with the drive gear, and a motor for driving the drive gear to rotate is fixed on the moving body.

[0008] Preferably, the inner ring surfaces of the upper and lower clamping rings are provided with slots, and the moving body is rotatably mounted with a rolling wheel connected inside the slot.

[0009] Preferably, a slanted arm is fixed to one side of the moving body, and the welding torch is fixed to the slanted arm.

[0010] Preferably, both the upper and lower clamping rings are connected to a support arm, which extends into the interior of the support and is connected to the drive assembly. The drive assembly can drive the upper and lower clamping rings to move up and down via the support arm.

[0011] Preferably, the drive assembly includes a slider fixed to the connecting arm, and a screw is rotatably mounted inside the support. The screw passes through the slider and engages with a screw hole inside the slider, with the screw holes inside the upper and lower sliders having opposite spiral directions.

[0012] Preferably, both the upper clamping arm and the lower clamping arm include clamping blocks, the inner side of the clamping block is provided with an arc-shaped groove, and the interior of the arc-shaped groove is provided with a locking post, which cooperates with the pipe fitting.

[0013] Preferably, the material of the retaining post is rubber.

[0014] Preferably, the clamping block is fixed to the upper and lower clamping arms by bolts.

[0015] The beneficial effects of this invention are as follows: This pipe butt welding equipment effectively solves many problems of traditional equipment and has significant advantages thanks to its design that allows for the separation of the upper and lower clamping rings during installation and the connection to form a complete circular track during welding. Regarding installation convenience, the upper and lower clamping rings can be relatively separated, eliminating the need to insert the pipe fittings into the track. Simply place the pipe fitting in the clamping position of the clamping device and fix it, then precisely connect the upper and lower clamping rings. It is not limited by the size, weight, or working space of the pipe fittings, and can be easily adapted to both the mass production of small standard pipe fittings and the on-site welding of large pipe fittings, greatly expanding the equipment's application scenarios.

[0016] In terms of welding quality and integrity, the upper and lower clamping rings can form a continuous and gapless circular track after being connected, providing a stable moving path for the welding torch. At the same time, with the limiting and guiding effect of the chuck and slot on the moving body, the welding torch can move smoothly along the track, successfully achieving 360-degree all-round welding of the pipe fitting. This avoids the phenomenon of missed welding and incomplete welding caused by track problems in traditional equipment, ensuring the accuracy and continuity of the welding trajectory, and significantly improving the sealing performance and structural strength of the welded joint. Attached Figure Description Figure 1 This is a schematic diagram of the structure of the present invention.

[0017] Figure 2 This is an internal diagram of the support.

[0018] Figure 3 This is a cross-sectional view showing the connection between the upper clamping ring and the moving body.

[0019] Figure 4 This is a side view of the present invention.

[0020] Figure 5 This is an internal view of the clamping block.

[0021] Figure 6 for Figure 2 Enlarged view of point A in the image.

[0022] Figure 7 for Figure 3 Enlarged view of point B in the image.

[0023] In the diagram: 1. Support, 2. Upper clamping arm, 3. Lower clamping arm, 4. Lower clamping ring, 5. Welding torch, 6. Upper clamping ring, 7. Moving body, 8. Connecting arm, 9. Slider, 10. Screw, 11. Welding handle, 12. Drive gear, 13. Picking wheel, 14. Slanted arm, 15. Picking post, 16. Clamping block. Detailed Implementation

[0024] The present invention is illustrated below with specific embodiments, but these are not intended to limit the invention.

[0025] Example 1 like Figures 1-7 As shown in the figure, the pipe butt welding equipment provided in this embodiment includes a support 1, a welding assembly, and a clamping device, the specific structure of which is as follows: The welding torch 5 of the welding assembly is mounted on the support 1. The welding assembly includes the welding torch 5 and a track for the welding torch 5 to move. The track includes an upper clamping ring 6 and a lower clamping ring 4 that can move relative to or towards each other. When the upper clamping ring 6 and the lower clamping ring 4 are in contact, they form a continuous circular track. The welding torch 5 can move on this continuous track. During the movement, the welding torch 5 can perform welding operations on the pipe fittings.

[0026] The clamping device is provided with clamping positions for fixing the pipe fitting, with a minimum of two, and distributed on both sides of the welding assembly; the clamping device includes an upper clamping arm 2 and a lower clamping arm 3, both of which include clamping blocks 16. The inner side of the clamping block 16 is provided with an arc-shaped groove, and the inside of the arc-shaped groove is provided with a locking post 15. The locking post 15 cooperates with the pipe fitting to clamp and fix the pipe fitting, preventing the pipe fitting from moving during the welding process.

[0027] The clamping post 15 is made of rubber, which has a certain degree of elasticity. When it comes into contact with the pipe fitting, it can generate appropriate friction and buffering force, which can not only firmly clamp the pipe fitting, but also avoid damage to the surface of the pipe fitting. At the same time, it can adapt to the slight unevenness of the pipe fitting surface and improve the stability of clamping.

[0028] The clamping block 16 is fixed to the upper clamping arm 2 and the lower clamping arm 3 by bolts. The clamping block 16 can be installed and disassembled by tightening or loosening the bolts, which facilitates the replacement and maintenance of the clamping block 16. When the clamping block 16 is worn or needs to be adapted to different specifications of pipe fittings, the corresponding clamping block 16 can be quickly replaced, improving the versatility and flexibility of the equipment.

[0029] The pipe welding equipment provides a supporting foundation through the support 1. At least two clamping devices are respectively used to fix the pipe to be welded at the clamping positions on both sides of the welding assembly. The upper clamping ring 6 and the lower clamping ring 4 of the welding assembly can move relative to each other or towards each other. After docking, they form a continuous circular track. The welding torch 5 can move on this track to achieve stable fixation of the pipe and all-round welding, meet the needs of the welding torch 5 to move around the pipe for welding, and ensure the stability of the pipe position during the welding process.

[0030] Example 2 like Figures 1-7 As shown, this embodiment, based on Embodiment 1, provides a pipe butt welding device, with specific structural improvements as follows: Both the upper clamping ring 6 and the lower clamping ring 4 have slides on their outer ring surfaces. A movable body 7 is sleeved on the outside of the upper clamping ring 6 and the lower clamping ring 4. The welding torch 5 is mounted on the movable body 7, which is sleeved on the upper clamping ring 6 and the lower clamping ring 4 and can move along the slides of the upper clamping ring 6 and the lower clamping ring 4, thereby driving the welding torch 5 to move. This provides a stable moving path for the welding torch 5, ensuring that the welding torch 5 moves smoothly during the welding process, guaranteeing the accuracy of the welding trajectory, and thus improving the welding quality.

[0031] The moving body 7 has a drive gear 12 rotatably mounted inside. The inside of the slide groove is provided with teeth that mesh with the drive gear 12. A motor is fixed on the moving body 7 to drive the drive gear 12 to rotate. The motor drives the drive gear 12 to rotate. With the meshing transmission of the gear and teeth, the moving body 7 moves along the upper and lower clamping rings 4, providing power for the movement of the moving body 7. The precise movement control of the moving body 7 is achieved through gear transmission, ensuring that the welding torch 5 moves according to the preset trajectory and speed, thereby improving the accuracy and consistency of welding.

[0032] The inner ring surfaces of the upper clamping ring 6 and the lower clamping ring 4 are provided with slots. The moving body 7 is rotatably mounted with a roller 13 that is rolled inside the slot. When the moving body 7 moves, the roller 13 rolls in the slot, which limits and guides the moving body 7, preventing the moving body 7 from deviating or falling off during the movement, ensuring that the moving body 7 moves stably along the set track, and further improving the stability of the welding torch 5 movement.

[0033] Example 3 like Figures 1-7 As shown, this embodiment, based on Embodiment 1 and Embodiment 2, provides a pipe butt welding device, with specific structural improvements as follows: A slanted arm 14 is fixed to one side of the movable body 7. A welding handle 11 is installed on the slanted arm 14. The welding torch 5 is installed on the slanted arm 14 through the welding handle 11. The slanted arm 14 supports and fixes the welding torch 5, so that the welding torch 5 is in a suitable welding position and angle, and the welding torch 5 is stably installed on the movable body 7. The spatial position of the welding torch 5 is adjusted by the setting of the slanted arm 14 to ensure that the welding torch 5 can be accurately aligned with the welding part, so as to facilitate the welding operation.

[0034] Both the upper clamping ring 6 and the lower clamping ring 4 are connected to support arms. The support arms extend into the interior of the support 1 and are connected to the drive assembly. The drive assembly can drive the upper clamping ring 6 and the lower clamping ring 4 to move up and down through the support arms, so as to realize the relative or opposite movement of the two and control the opening and closing of the upper clamping ring 6 and the lower clamping ring 4, so as to facilitate the placement and fixing of pipe fittings. At the same time, the size of the circular track formed by the upper and lower clamping rings 4 can be adjusted according to the size of the pipe fittings to adapt to the welding requirements of pipe fittings of different specifications.

[0035] The drive assembly includes a slider 9 fixed to the connecting arm 8. A screw 10 is rotatably mounted inside the support 1. The screw 10 passes through the slider 9 and meshes with the screw hole inside the slider 9. The screw holes inside the upper and lower sliders 9 have opposite spiral directions. When the screw 10 rotates, it drives the two sliders 9 to move in opposite directions through the meshing transmission with the screw hole of the slider 9. In turn, it drives the upper clamping ring 6 and the lower clamping ring 4 to move up and down through the support arm, realizing the synchronous reverse movement of the upper clamping ring 6 and the lower clamping ring 4. This ensures that the two are accurately connected. Moreover, the transmission through the screw 10 has high transmission accuracy and can accurately control the movement distance of the upper and lower clamping rings 4, ensuring the accuracy of track formation.

[0036] The overall working principle of this pipe butt welding equipment is as follows: The equipment is stably supported by support 1, and at least two clamping devices fix the pipe fittings to be welded on both sides of the welding assembly. The upper clamping arm 2 and the lower clamping arm 3 of the clamping device fit against the pipe fitting through the arc groove on the inner side of the clamping block 16, and the rubber clamping post 15 further clamps the pipe fitting to achieve reliable fixation.

[0037] During welding, the drive assembly moves the upper clamping ring 6 and the lower clamping ring 4 towards each other and precisely aligns them, forming a continuous circular track that fits the pipe fitting. The drive assembly, through the meshing transmission between the screw 10 and the slider 9, causes the upper and lower sliders 9 to move in opposite directions, driving the upper clamping ring 6 and the lower clamping ring 4 to open and close synchronously.

[0038] The welding torch 5 is fixed to the movable body 7 by the inclined arm 14. The movable body 7 is sleeved on the outside of the upper clamping ring 6 and the lower clamping ring 4. The motor drives the gear inside the movable body 7 to rotate, and through the meshing with the teeth in the slide rail, the movable body 7 moves smoothly along the circular track. At the same time, the chuck 13 on the movable body 7 rolls in the chuck groove to ensure accurate and stable movement trajectory.

[0039] Driven by the moving body 7, the welding torch 5 moves in a circular motion along the pipe fitting joint, achieving all-round, automated welding of the pipe fitting. When it is necessary to replace pipe fittings of different specifications, quick adaptation can be achieved by replacing the clamping block 16 or adjusting the relative positions of the upper and lower clamping rings 4.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate and not limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the present invention without departing from the spirit and scope of the present invention. Any modifications or partial substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A pipe butt welding device, comprising a support (1), characterized in that, Also includes: Welding assembly, wherein the welding torch (5) is mounted on the support (1); A clamping device, wherein the clamping device is provided with clamping positions for fixing the pipe fitting, and the number of clamping devices is at least two, which are distributed on both sides of the welding assembly; The welding assembly includes a welding torch (5) and a track for the welding torch (5) to move. The track includes an upper clamping ring (6) and a lower clamping ring (4) that can move relative to or towards each other. When the upper clamping ring (6) and the lower clamping ring (4) are in contact with each other, the upper clamping ring (6) and the lower clamping ring (4) form a continuous circular track. The welding torch (5) can move on this continuous track. When the welding torch (5) is moving, the end of the welding torch (5) 2. The pipe butt welding equipment according to claim 1, characterized in that, The upper clamping ring (6) and the lower clamping ring (4) are provided with slides on their outer ring surfaces. A movable body (7) is sleeved on the outside of the upper clamping ring (6) and the lower clamping ring (4). The welding torch (5) is mounted on the movable body (7). The movable body (7) is sleeved on the upper clamping ring (6) and the lower clamping ring (4) and can move on the upper clamping ring (6) and the lower clamping ring (4).

3. The pipe butt welding equipment according to claim 2, characterized in that, The moving body (7) is rotatably mounted with a drive gear (12), and the inside of the slide groove is provided with teeth that mesh with the drive gear (12). The moving body (7) is fixed with a motor for driving the drive gear (12) to rotate.

4. The pipe butt welding equipment according to claim 3, characterized in that, The inner ring surfaces of the upper clamping ring (6) and the lower clamping ring (4) are provided with slots, and the moving body (7) is rotatably mounted with a rolling wheel (13) connected inside the slot.

5. The pipe butt welding equipment according to claim 2, characterized in that, A slanted arm (14) is fixed on one side of the movable body (7), and the welding torch (5) is fixed on the slanted arm (14).

6. The pipe butt welding equipment according to claim 1, characterized in that, Both the upper clamping ring (6) and the lower clamping ring (4) are connected to a support arm. The support arm extends into the interior of the support (1) and is connected to the drive assembly. The drive assembly can drive the upper clamping ring (6) and the lower clamping ring (4) to move up and down through the support arm.

7. The pipe butt welding equipment according to claim 6, characterized in that, The drive assembly includes a slider (9) fixed to the connecting arm (8), and a screw (10) is rotatably mounted inside the support (1). The screw (10) passes through the slider (9) and engages with the screw hole inside the slider (9). The screw holes inside the upper and lower sliders (9) have opposite spiral directions.

8. The pipe butt welding equipment according to claim 1, characterized in that, Both the upper clamping arm (2) and the lower clamping arm (3) include clamping blocks (16). The inner side of the clamping block (16) is provided with an arc-shaped groove, and the inside of the arc-shaped groove is provided with a locking post (15). The locking post (15) cooperates with the pipe fitting.

9. The pipe butt welding equipment according to claim 1, characterized in that, The material of the locking post (15) is rubber.

10. The pipe butt welding equipment according to claim 1, characterized in that, The clamping block (16) is fixed to the upper clamping arm (2) and the lower clamping arm (3) by bolts.

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