A fixing device for outdoor high-altitude laser welding of gas pipelines

Abstract

This application relates to the field of welding fixture technology, specifically providing a fixing device for high-altitude laser welding of outdoor gas pipelines. The device includes: a device body for temporarily fixing a new pipe section; a first clamping and fixing part fixedly disposed on the left side of the device body for clamping an existing pipe section; a second clamping and fixing part detachably disposed in the middle of the device body for clamping and fixing the weld joint between the existing and new pipe sections; and a third clamping and fixing part fixedly disposed on the right side of the device body for clamping the new pipe section. This provides a more reliable clamping force during high-altitude operations, effectively preventing pipeline displacement caused by wind disturbance or gravity, thereby improving laser welding quality, reducing weld defects, and ensuring the welding safety and reliability of outdoor gas pipelines.

Description

Technical Field

[0001] This application relates to the field of welding tooling technology, and in particular to a fixing device for high-altitude laser welding of outdoor gas pipelines. Background Technology

[0002] In the scenario of high-altitude welding of outdoor gas pipelines, the welding space is narrow because the pipelines are usually laid along the walls. In addition, the high-altitude working environment is complex, and factors such as wind disturbance and temperature changes will have an adverse effect on the laser welding process, thereby further increasing the difficulty of the welding operation.

[0003] When a section of an outdoor gas pipeline located at a high altitude needs to be replaced, it is usually necessary to first cut and remove the entire section of pipeline, and then weld the new section to the original section. This process will create two weld joints, one on each side, which need to be welded separately. To ensure the stability of the welding process, a welding fixing device is used to temporarily position and clamp the pipeline: usually, one weld joint is fixed first, and then the welding operation is carried out on the other end.

[0004] However, existing welding fixing devices mostly use upper and lower arc-shaped clamping plates to hold the weld joint for temporary positioning of new pipe sections. But in high-altitude environments, affected by external factors such as wind and gravity, the clamping force is insufficient, which may lead to unstable pipe positioning and thus affect the welding quality.

[0005] Therefore, existing technologies have defects and shortcomings, and need further improvement and development. Utility Model Content

[0006] In view of the shortcomings of the prior art, the purpose of this application is to provide a fixing device for high-altitude laser welding of outdoor gas pipelines, which aims to solve the problem that the existing welding fixing devices have insufficient clamping force in high-altitude working environments, which may lead to unstable pipeline positioning and affect welding quality.

[0007] The technical solution adopted by this application to solve the technical problem is as follows: A fixing device for high-altitude laser welding of outdoor gas pipelines, used to assist in high-altitude outdoor gas pipeline welding, comprising:

[0008] The device body is used to temporarily fix the new pipe section;

[0009] The first clamping and fixing part is fixedly disposed on the left side of the device body; the first clamping and fixing part is used to clamp the original pipe section.

[0010] The second clamping and fixing part is detachably disposed in the middle of the device body; the second clamping and fixing part is used to clamp and fix the weld between the original pipe section and the new pipe section.

[0011] The third clamping and fixing part is fixedly disposed on the right side of the device body; the third clamping and fixing part is used to clamp the new pipe section.

[0012] Optionally, the first clamping and fixing part, the second clamping and fixing part, and the third clamping and fixing part each include:

[0013] The fastener is fixedly connected to the device body;

[0014] A rotating component, which is rotatably connected to the fixed component;

[0015] A hinge, one end of which is fixedly connected to the fixed member, and the other end of which is fixedly connected to the rotating member.

[0016] Optionally, the fixing member is provided with a first engaging groove at one end facing the rotating member, and the rotating member is provided with a second engaging groove at one end facing the fixing member; the second engaging groove is used to cooperate with the first engaging groove to fix the new pipe segment or the original pipe segment.

[0017] Optionally, the first engaging groove is configured as a semi-circle, and the second engaging groove is configured as an arc.

[0018] Optionally, the first clamping and fixing part, the second clamping and fixing part, and the third clamping and fixing part further include:

[0019] A locking bolt passes through the rotating member and is screwed to the fixing member.

[0020] Optionally, the locking bolt is provided with:

[0021] Thread body;

[0022] The knob is integrally formed with the threaded body.

[0023] Optionally, the knob can be circular, linear, square, or cross-shaped.

[0024] Optionally, the fixing device for high-altitude laser welding of outdoor gas pipelines further includes:

[0025] A quick-release bolt is provided on the top of the device body, and the quick-release bolt is used to fix the second clamping and fixing part to the device body.

[0026] Optionally, the fixing member and the bottom of the rotating member are secured with an adjustable buckle or a stainless steel lock.

[0027] Optionally, the fixing device for high-altitude laser welding of outdoor gas pipelines further includes a handle, which is fixedly disposed above the device body.

[0028] Compared with existing technologies, this application provides a fixing device for high-altitude laser welding of outdoor gas pipelines. This fixing device achieves multi-point clamping and positioning of existing pipe sections, new pipe sections, and weld joints by setting a first clamping and fixing part, a second clamping and fixing part, and a third clamping and fixing part on the left, middle, and right sides of the device body, respectively. Compared with the existing technology that only uses upper and lower arc-shaped clamping plates, this provides more reliable clamping force during high-altitude operations, effectively preventing pipeline displacement caused by wind disturbance or gravity, ensuring the stability of the weld joint during welding, thereby improving laser welding quality, reducing weld defects, and ensuring the welding safety and reliability of outdoor gas pipelines. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of the fixing device for high-altitude laser welding of outdoor gas pipelines provided in this application;

[0030] Figure 2 This is a three-dimensional structural schematic diagram of the fixing device for high-altitude laser welding of outdoor gas pipelines provided in this application;

[0031] Figure 3 This is another three-dimensional structural schematic diagram of the fixing device for high-altitude laser welding of outdoor gas pipelines provided in this application;

[0032] Figure 4 This is a three-dimensional structural diagram of the fixing device, new pipe section, existing pipe section, and portable automatic laser tube welding equipment for high-altitude laser welding of outdoor gas pipelines provided in this application, in their working state.

[0033] Explanation of reference numerals in the attached figures:

[0034] 10. Fixing device for high-altitude laser welding of outdoor gas pipelines; 11. Device body; 12. First clamping and fixing part; 13. Second clamping and fixing part; 14. Third clamping and fixing part; 15. Fixing component; 16. Rotating component; 17. Hinge; 18. Locking bolt; 151. First engagement groove; 161. Second engagement groove; 181. Threaded body; 182. Knob; 19. Quick-release bolt; 111. Handle; 20. New pipe section; 30. Existing pipe section; 40. Portable automatic laser tube welding equipment. Detailed Implementation

[0035] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0036] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and 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 on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0037] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0038] Please refer to the following: Figures 1 to 4The fixing device 10 for high-altitude laser welding of outdoor gas pipelines mainly includes a device body 11, a first clamping fixing part 12, a second clamping fixing part 13, a third clamping fixing part 14, a locking bolt 18, a quick-release bolt 19, and a handle 111. The first clamping fixing part 12 is fixedly disposed on the left side of the device body 11 and is used to clamp the existing pipe section 30. The second clamping fixing part 13 is detachably disposed in the middle of the device body 11 and is used to clamp and fix the weld joint between the existing pipe section 30 and the new pipe section 20. The third clamping fixing part 14 is fixedly disposed on the right side of the device body 11 and is used to clamp the new pipe section 20, forming an "M" shape. Each clamping fixing part includes a fixing member 15 fixedly connected to the device body 11, a rotating member 16 rotatably connected to the fixing member 15, and a hinge 17 connecting the fixing member 15 and the rotating member 16. The fixed member 15 and the rotating member 16 are respectively provided with a first clamping groove 151 and a second clamping groove 161, which are semi-circular and arc-shaped, respectively, to achieve stable clamping with the pipe section; the locking bolt 18 passes through the rotating member 16 and is screwed to the fixed member 15 to provide clamping force. The top of the device body 11 is provided with a quick-release bolt 19, which is used to quickly install and remove the second clamping and fixing part 13; a handle 111 is also provided on the top of the device body 11 to facilitate high-altitude transportation and operation.

[0039] The fixing device 10 for high-altitude laser welding of outdoor gas pipelines is used in actual work to assist in welding positioning during the replacement of high-altitude gas pipelines. When a section of an outdoor gas pipeline located at high altitude needs to be replaced, the original pipe section 30 is first cut off, and then the portable automatic laser tube welding equipment 40, the prefabricated new pipe section 20, and the fixing device 10 for high-altitude laser welding of outdoor gas pipelines are transported as a whole to the welding position using existing lifting equipment. After the on-site operator uses the handle 111 to move the fixing device to the installation position, the left end of the original pipe section 30 is clamped by the first clamping fixing part 12, the right end of the new pipe section 20 is clamped by the third clamping fixing part 14, and the weld joint between the original pipe section 30 and the new pipe section 20 is clamped by the second clamping fixing part 13, thus completing the positioning of the entire prefabricated section. Specifically, the portable automatic laser tube welding equipment 40 is existing technology and can be a closed tube welding machine. The closed tube welding machine includes a closed tube welding machine laser welding torch and a welding machine connected to the closed tube welding machine laser welding torch. The specific working principle will not be elaborated in this application.

[0040] The two pipe sections and weld area are stably clamped by the coordinated operation of three sets of clamping and fixing parts. The fixing parts 15 and rotating parts 16 inside the three sets of clamping and fixing parts can open and close under the action of hinge 17. With the semi-circular and arc-shaped structures of the first clamping groove 151 and the second clamping groove 161, they can be firmly attached to the pipe surface. After tightening by the threaded locking bolt 18, the clamping force is further strengthened, and the pipe section position is avoided due to wind disturbance or gravity factors during high-altitude operations. Specifically, the detachable structure design of the second clamping and fixing part 13 is realized by quick-release bolt 19. After the first weld is completed, the second clamping and fixing part 13 can be quickly removed to provide space for the subsequent welding operation of the other end, making it easier for the laser welding torch to be aligned with the weld joint for welding.

[0041] Overall, the fixing device 10 for high-altitude laser welding of outdoor gas pipelines provides a reliable and stable welding platform in complex high-altitude environments by setting a three-point support clamping structure. In conjunction with existing laser welding equipment, it improves the accuracy, safety and efficiency of high-altitude gas pipeline welding, significantly reduces the risk of insecure positioning by traditional arc-shaped clamping plates, thereby ensuring welding quality and meeting usage requirements.

[0042] Please refer to the following: Figures 1 to 2 In some embodiments, the fixing device 10 for high-altitude laser welding of outdoor gas pipelines includes a device body 11, a first clamping and fixing part 12, a second clamping and fixing part 13, and a third clamping and fixing part 14. The device body 11 is used to temporarily fix a new pipe segment 20. The first clamping and fixing part 12 is fixedly disposed on the left side of the device body 11 and is used to clamp the original pipe segment 30. The second clamping and fixing part 13 is detachably disposed in the middle of the device body 11 and is used to clamp and fix the weld joint between the original pipe segment 30 and the new pipe segment 20. The third clamping and fixing part 14 is fixedly disposed on the right side of the device body 11 and is used to clamp the new pipe segment 20. Thus, by providing the first clamping and fixing part 12, the second clamping and fixing part 13, and the third clamping and fixing part 14 on the left, middle, and right sides of the device body 11 respectively, multi-point clamping and positioning of the original pipe segment 30, the new pipe segment 20, and the weld joint is achieved. Compared to existing technologies that only use upper and lower arc-shaped clamping plates, this method can provide more reliable clamping force during high-altitude operations, effectively preventing pipeline displacement caused by wind disturbance or gravity, ensuring the stability of weld joints during welding, thereby improving laser welding quality, reducing weld defects, and ensuring the welding safety and reliability of outdoor gas pipelines.

[0043] Please refer to the following: Figures 1 to 2In some embodiments, the first clamping and fixing part 12, the second clamping and fixing part 13, and the third clamping and fixing part 14 each include a fixing member 15, a rotating member 16, and a hinge 17. Specifically, the hinge 17 can be configured as a hinge. The fixing member 15 is fixedly connected to the device body 11; the rotating member 16 is rotatably connected to the fixing member 15; one end of the hinge 17 is fixedly connected to the fixing member 15, and the other end of the hinge 17 is fixedly connected to the rotating member 16. This allows each clamping and fixing part to not only have a clamping function but also a rotation adjustment capability, which is beneficial for flexible adjustment according to the actual installation angle or position of the pipeline during high-altitude laser welding operations on outdoor gas pipelines. This structure further enhances the adaptability and versatility of the device, while the hinge 17 connection improves the assembly strength and connection stability, ensuring that the clamping state is not easily loosened during welding.

[0044] Please refer to the following: Figures 1 to 3 In some embodiments, the fixing member 15 has a first engaging groove 151 at the end facing the rotating member 16, and the rotating member 16 has a second engaging groove 161 at the end facing the fixing member 15. The second engaging groove 161 is used to cooperate with the first engaging groove 151 to fix the new pipe segment 20 or the original pipe segment 30. Furthermore, by setting the first engaging groove 151 and the second engaging groove 161 on the fixing member 15 and the rotating member 16 respectively, they cooperate to clamp the pipe segment, enhancing the structural interlocking strength of the clamping and fixing part. Through the geometric fit between the engaging grooves, high-strength limiting of the original pipe segment 30 or the new pipe segment 20 is achieved, effectively improving the clamping stability in high-altitude welding scenarios, preventing pipe segment slippage due to uneven force, further ensuring weld joint accuracy, and optimizing welding operation efficiency.

[0045] Please refer to the following: Figures 1 to 3 In some embodiments, the first clamping groove 151 is semi-circular, and the second clamping groove 161 is arc-shaped. By using a semi-circular structure for the first clamping groove 151 and an arc-shaped structure for the second clamping groove 161, the contact area with the outer wall of the pipe section is effectively increased, improving clamping stability and fit, and reducing indentations or damage to the pipe section during clamping. This is also more suitable for the cylindrical shape of gas pipelines, enhancing the adaptability and safety of the device in complex high-altitude conditions.

[0046] Please refer to the following: Figure 2 In some embodiments, the first clamping and fixing part 12, the second clamping and fixing part 13, and the third clamping and fixing part 14 further include a locking bolt 18, which passes through the rotating member 16 and is screwed to the fixing member 15. Thus, by tightening the locking bolt 18, it is ensured that each clamping and fixing part does not loosen during high-altitude laser welding, maintaining the accuracy of the welding position and improving the reliability and anti-interference capability of the device.

[0047] Please refer to the following: Figure 2 In some embodiments, the locking bolt 18 is provided with a threaded body 181 and a knob 182; the threaded body 181 and the knob 182 are integrally formed, so that the fastener 15 and the rotating member 16 can be fastened directly by the knob 182 driving the threaded body 181.

[0048] In some embodiments, the knob 182 is configured as circular, straight, square, or cross-shaped. This allows for flexible selection of the knob 182 form based on the operator's habits and the availability of tools on site, helping to improve the efficiency and ergonomics of knob 182 operation during high-altitude work, thereby enhancing the overall applicability and user experience of the device.

[0049] Please refer to the following: Figure 3 In some embodiments, the fixing device 10 for high-altitude laser welding of outdoor gas pipelines further includes a quick-release bolt 19, which is disposed on the top of the device body 11 and is used to fix the second clamping fixing part 13 to the device body 11. By providing the quick-release bolt 19 on the top of the device body 11, the second clamping fixing part 13 is detachably connected, allowing for quick removal of the second clamping fixing part 13 after the first weld joint is completed, freeing up space for the portable automatic laser tube welding equipment 40 to weld another joint. This helps improve on-site welding efficiency, reduces device changeover time, and is particularly suitable for multi-station continuous welding needs in high-altitude environments.

[0050] In some embodiments, the fixing member 15 and the bottom of the rotating member 16 are secured with adjustable latches or stainless steel locks, which can adopt existing structures. This provides another clamping and fixing method, enhancing the versatility and stability of the clamping structure, facilitating fine-tuning of clamping under different pipe diameters and environmental conditions, and improving the adaptability and safety of the device.

[0051] Please refer to the following: Figure 3 In some embodiments, the fixing device 10 for high-altitude laser welding of outdoor gas pipelines further includes a handle 111, which is fixedly disposed above the device body 11. This facilitates the device being held, carried, and positioned by operators during high-altitude welding operations, improving on-site work efficiency and operational safety.

[0052] In some embodiments, a pivot is provided between the first clamping and fixing part 12, the second clamping and fixing part 13, and the third clamping and fixing part 14 and the device body 11. The first clamping and fixing part 12, the second clamping and fixing part 13, and the third clamping and fixing part 14 are connected to the device body 11 via the pivot, allowing the first clamping and fixing part 12, the second clamping and fixing part 13, and the third clamping and fixing part 14 to rotate relative to the device body 11. This allows the first clamping and fixing part 12, the second clamping and fixing part 13, and the third clamping and fixing part 14 to work together to clamp the arc-shaped pipe. Furthermore, the pivot can slide horizontally back and forth in a sliding groove provided at the bottom of the device body 11, allowing the first clamping and fixing part 12, the second clamping and fixing part 13, and the third clamping and fixing part 14 to better clamp the arc-shaped pipe.

[0053] In summary, this application provides a fixing device for high-altitude laser welding of outdoor gas pipelines. The fixing device includes: a device body for temporarily fixing a new pipe segment; a first clamping fixing part fixedly disposed on the left side of the device body for clamping an existing pipe segment; a second clamping fixing part detachably disposed in the middle of the device body for clamping and fixing the weld joint between the existing and new pipe segments; and a third clamping fixing part fixedly disposed on the right side of the device body for clamping the new pipe segment. By providing the first, second, and third clamping fixing parts on the left, middle, and right sides of the device body respectively, multi-point clamping and positioning of the existing pipe segment, the new pipe segment, and the weld joint can be achieved. Compared to existing technologies that only use upper and lower arc-shaped clamping plates, this structure can provide more reliable clamping force during high-altitude operations, effectively preventing pipeline displacement caused by wind disturbance or gravity, ensuring the stability of weld joints during welding, thereby improving laser welding quality, reducing weld defects, and ensuring the welding safety and reliability of outdoor gas pipelines.

[0054] It should be understood that the application of this application is not limited to the examples above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A fixing device for high-altitude laser welding of outdoor gas pipelines, used to assist in high-altitude outdoor gas pipeline welding, characterized in that, The fixing device for high-altitude laser welding of outdoor gas pipelines includes: The device body is used to temporarily fix the new pipe section; The first clamping and fixing part is fixedly disposed on the left side of the device body; the first clamping and fixing part is used to clamp the original pipe section. The second clamping and fixing part is detachably disposed in the middle of the device body; the second clamping and fixing part is used to clamp and fix the weld between the original pipe section and the new pipe section. The third clamping and fixing part is fixedly disposed on the right side of the device body; the third clamping and fixing part is used to clamp the new pipe section.

2. The fixing device for high-altitude laser welding of outdoor gas pipelines according to claim 1, characterized in that, The first clamping and fixing part, the second clamping and fixing part, and the third clamping and fixing part each include: The fastener is fixedly connected to the device body; A rotating component, which is rotatably connected to the fixed component; A hinge, one end of which is fixedly connected to the fixed member, and the other end of which is fixedly connected to the rotating member.

3. The fixing device for high-altitude laser welding of outdoor gas pipelines according to claim 2, characterized in that, The fixing member has a first engaging groove at one end facing the rotating member, and the rotating member has a second engaging groove at one end facing the fixing member; the second engaging groove is used to cooperate with the first engaging groove to fix the new pipe section or the original pipe section.

4. The fixing device for high-altitude laser welding of outdoor gas pipelines according to claim 3, characterized in that, The first engagement groove is set as a semi-circle, and the second engagement groove is set as an arc.

5. The fixing device for high-altitude laser welding of outdoor gas pipelines according to claim 4, characterized in that, The first clamping and fixing part, the second clamping and fixing part, and the third clamping and fixing part further include: A locking bolt passes through the rotating member and is screwed to the fixing member.

6. The fixing device for high-altitude laser welding of outdoor gas pipelines according to claim 5, characterized in that, The locking bolt is provided with: Thread body; The knob is integrally formed with the threaded body.

7. The fixing device for high-altitude laser welding of outdoor gas pipelines according to claim 6, characterized in that, The knob can be round, straight, square, or cross-shaped.

8. The fixing device for high-altitude laser welding of outdoor gas pipelines according to claim 7, characterized in that, The fixing device for high-altitude laser welding of outdoor gas pipelines also includes: A quick-release bolt is provided on the top of the device body, and the quick-release bolt is used to fix the second clamping and fixing part to the device body.

9. The fixing device for high-altitude laser welding of outdoor gas pipelines according to claim 2, characterized in that, The fixing component and the bottom of the rotating component are secured with adjustable buckles or stainless steel locks.

10. The fixing device for high-altitude laser welding of outdoor gas pipelines according to claim 1, characterized in that, The fixing device for high-altitude laser welding of outdoor gas pipelines also includes a handle, which is fixedly installed above the device body.

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