Pipeline welding auxiliary tool

Abstract

The utility model provides a pipeline welding auxiliary tool, which belongs to the technical field of refrigeration equipment production, and comprises a bottom plate and a welding auxiliary structure, and the welding auxiliary structure comprises a positioning base, an adjusting rod and a mounting piece. The positioning base is detachably arranged on the bottom plate, the adjusting rod is arranged on the positioning base, and the mounting piece is arranged on the adjusting rod; the adjusting rod is used for adjusting the distance between the mounting piece and the positioning base. According to the device, the position of the welding auxiliary structure on the bottom plate can be adjusted, so that supporting and other auxiliary welding work on a pipeline at different positions can be achieved, the application range is wide, the labor intensity of pipeline welding is relieved, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration equipment manufacturing technology, and in particular to an auxiliary tooling for pipeline welding. Background Technology

[0002] In the field of refrigeration equipment manufacturing and maintenance, refrigeration system piping welding is a core aspect that determines the performance and reliability of the equipment. This is because all types of refrigeration equipment, whether household air conditioners, refrigerators, commercial cold storage facilities, or industrial refrigeration units, rely on piping to transport refrigerant and achieve heat exchange and refrigeration cycles.

[0003] To improve the welding quality of refrigeration system piping, specialized tooling is needed to assist production. Some existing welding aids for refrigeration system piping can support the piping from the bottom, ensuring it doesn't shift during welding and thus guaranteeing quality. However, refrigeration system piping comes in various forms, including straight pipes, bends, and irregularly shaped pipes, with numerous diameters and wall thicknesses. Different models of refrigeration equipment also have different piping layouts and connection methods. For example, in small household refrigerators, the piping is thin and compact; while in large commercial cold storage, the piping is large in diameter and long. This makes it difficult to meet all welding requirements with a single tooling, necessitating the design of multiple specialized toolings to assist production. However, this increases production costs and requires frequent tooling changes during production transitions, reducing efficiency and increasing labor intensity.

[0004] Therefore, it is necessary to improve the existing auxiliary tooling for pipeline welding in order to overcome the shortcomings of the existing technology. Summary of the Invention

[0005] To overcome the problems existing in related technologies, the purpose of this utility model is to provide a pipeline welding auxiliary tooling. This device can adjust the position of the welding auxiliary structure on the base plate, thereby enabling the pipeline to be supported in different positions and to perform other auxiliary welding work. It has a wide range of applications, helps to reduce the labor intensity of pipeline welding, and improves work efficiency.

[0006] A pipe welding auxiliary tooling, comprising:

[0007] Base plate;

[0008] A welding auxiliary structure includes a positioning base, an adjusting rod, and a mounting component. The positioning base is detachably mounted on the base plate, the adjusting rod is mounted on the positioning base, and the mounting component is mounted on the adjusting rod. The adjusting rod is used to adjust the distance between the mounting component and the positioning base.

[0009] The device is used as follows: First, adjust the positioning base to a suitable position on the base plate according to the location and requirements of the welding pipeline. Then, adjust the adjusting rod according to the height requirements of the pipeline to raise or lower the mounting component to a suitable height. Next, install the auxiliary pipeline welding structure on the mounting component, such as positioning and supporting the pipeline, and then carry out the pipeline welding work.

[0010] Because the positioning base is detachably mounted on the base plate, it can be moved to any position on the base plate according to different welding requirements. This allows the fixture to adapt to pipe welding work with different layouts and positions, greatly expanding its applicability. The adjusting rod can easily adjust the distance between the mounting component and the positioning base. For pipes of different heights, the adjusting rod can be adjusted to ensure that the mounting component accurately supports the pipe, ensuring smooth welding work.

[0011] Because the positioning base and adjustment rod can be moved and adjusted quickly to the appropriate position and height, a large amount of manual handling and adjustment is not required, which reduces the labor intensity of workers and greatly shortens the preparation time before welding and the adjustment time during welding, thus improving work efficiency.

[0012] In a preferred embodiment of this invention, the positioning base and the base plate are magnetically attracted to each other.

[0013] The positioning base includes a mounting base, in which a knob is provided. A first magnet and a second magnet are respectively provided on opposite sides of the knob, and the polarities of the first magnet and the second magnet are opposite.

[0014] Rotating the knob can cause the first magnet and the second magnet to rotate.

[0015] In this embodiment, a first magnet and a second magnet are respectively installed on opposite sides of the knob, with opposite polarities. For example, the north pole of the first magnet faces outward, and the south pole of the second magnet faces outward. Rotating the knob causes the first and second magnets to rotate synchronously. When the knob is in a certain position, the magnetic field directions of the first and second magnets create a strong magnetic attraction between the positioning base and the base plate, thus firmly attaching the positioning base to the base plate. When it is necessary to move the positioning base, rotating the knob changes the magnetic field directions of the first and second magnets, weakening or even eliminating the magnetic attraction between the positioning base and the base plate. At this point, the positioning base can be easily moved to the desired position on the base plate, and rotating the knob again restores the magnetic attraction.

[0016] This application allows the positioning base to be easily and quickly moved to any desired position on the base plate by rotating a knob to change the magnetic adsorption state, greatly improving the positioning flexibility of the tooling and adapting to various complex pipeline layouts. Whether it is pipelines in different positions inside refrigeration equipment or pipeline welding of different models of equipment, it can be positioned quickly.

[0017] The positioning base can be fixed and moved simply by turning the knob, making operation simple and convenient. Workers do not need to spend a lot of time on complex installation and adjustment work, simplifying the operation process, reducing labor intensity, and also reducing errors that may be caused by complex operation, thereby improving work efficiency and welding quality.

[0018] In a preferred embodiment of this invention, the bottom of the mounting base is connected to the base plate, and magnetic shielding material is provided at both the bottom and top of the mounting base.

[0019] The magnetic shielding material at the bottom of the mounting base optimizes the magnetic field distribution, making the magnetic adsorption between the positioning base and the base plate more stable and uniform. This avoids the problem of the positioning base shaking or shifting due to uneven magnetic field distribution, ensuring that the tooling remains stable throughout the welding process and improving welding quality.

[0020] In a preferred embodiment of this invention, the adjusting rod includes a sleeve and a lifting rod, and the mounting component is disposed on the top of the lifting rod;

[0021] The sleeve is detachably mounted on the positioning base. A first locking sleeve is provided on the top of the sleeve. The first locking sleeve has a frustum-shaped structure. A first through hole is provided in the middle of the first locking sleeve. A deformation groove is provided on the side plate of the first locking sleeve.

[0022] A second locking sleeve is fitted onto the lifting rod, and the second locking sleeve is threadedly connected to the outer wall of the first locking sleeve. When the second locking sleeve and the first locking sleeve are gradually locked together, the second locking sleeve squeezes the first locking sleeve, causing the first locking sleeve to contract toward the axis of the first through hole.

[0023] This embodiment provides a method for adjusting the height of an adjusting rod. When the height of the mounting component needs to be adjusted, first loosen the second locking sleeve so that the first locking sleeve no longer exerts a clamping force on the lifting rod. At this time, the lifting rod can move freely up and down within the sleeve. Adjust the lifting rod to a suitable height position according to the actual welding requirements. After adjusting the height, rotate the second locking sleeve, causing it to move downwards along the outer wall of the first locking sleeve. As the second locking sleeve moves, it gradually compresses the first locking sleeve. Due to the frustum-shaped structure of the first locking sleeve and the deformation groove on the side plate, the first locking sleeve contracts towards the axis of the first through hole, tightly gripping the lifting rod and fixing it at the current height position, thereby ensuring the height stability of the mounting component.

[0024] The adjusting rod employs a combination of a sleeve and a lifting rod, allowing for flexible adjustment of the installation height according to actual welding requirements. Simply loosening and tightening the second locking sleeve facilitates easy up-and-down movement and fixation of the lifting rod, making the operation quick and easy. Furthermore, this adjustment method enables precise height control, meeting the height accuracy requirements of different pipeline welding processes and improving welding quality.

[0025] In a preferred embodiment of this invention, a connecting member is provided between the sleeve and the positioning base, and the sleeve is detachably mounted on the positioning base via the connecting member.

[0026] Both ends of the connector are threaded, and the sleeve and the positioning base are connected by the threads on the connector, which can achieve stable and efficient installation of the sleeve and the positioning base.

[0027] In a preferred embodiment of this invention, the mounting component is provided with a detachable positioning block, and the positioning block is provided with a positioning groove. The positioning groove is used to clamp and position the pipeline.

[0028] The positioning grooves on the positioning block precisely clamp and position the pipeline, ensuring that it does not shift or wobble during welding. This makes the welding position more accurate, and the size and shape of the weld better meet design requirements, thereby improving welding precision and ensuring the welding quality of the refrigeration equipment pipelines. Since the positioning block is detachable, the appropriate positioning block can be replaced according to different pipe diameters and shapes. This allows the fixture to adapt to the welding needs of various pipe specifications, greatly enhancing its versatility and reducing the cost for companies to purchase multiple specialized fixtures for different pipeline welding tasks.

[0029] In a preferred embodiment of this invention, the base plate is provided with a plurality of welding auxiliary structures, wherein at least one of the mounting parts of the welding auxiliary structures is provided with the positioning block, and at least one of the mounting parts of the welding auxiliary structures is provided with a nitrogen filling nozzle.

[0030] Multiple welding auxiliary structures with positioning blocks can accurately position the pipeline from different positions, ensuring that the pipeline maintains a stable position and posture during the welding process, reducing welding deformation and errors, and improving the quality and consistency of the weld.

[0031] The welding auxiliary structure with a nitrogen purging nozzle allows nitrogen to be introduced into the pipeline during welding. Nitrogen, as an inert gas, effectively eliminates oxygen within the pipeline, preventing internal oxidation during welding and avoiding defects such as oxide scale and porosity, thus improving the corrosion resistance and strength of the welded joint. The base plate also features a welding auxiliary structure with positioning blocks and a nitrogen purging nozzle, giving the tooling both positioning and nitrogen protection functions. This allows it to meet the welding needs of different types and requirements of pipelines, enhancing the tooling's applicability and versatility.

[0032] In a preferred embodiment of this invention, the base plate is provided with a plurality of mounting holes, and the bottom of the positioning base is provided with a connecting post, which is threadedly connected to the mounting holes.

[0033] In this embodiment, the use of a threaded connection between the connecting post and the mounting hole enables a tight and stable connection between the positioning base and the base plate. Compared with connection methods such as magnetic adsorption, the threaded connection has higher strength and stability, effectively preventing the positioning base from loosening or shifting due to external vibration or impact during welding, thereby ensuring the accuracy and quality of pipeline welding.

[0034] The base plate has multiple mounting holes, allowing for flexible selection of the mounting position of the positioning base according to different welding requirements and pipeline layouts. When welding pipelines of different specifications or shapes is required, simply install the positioning base on the appropriate mounting hole to quickly adjust the tooling layout, improving the tooling's versatility and applicability.

[0035] In a preferred embodiment of this invention, the bottom of the base plate is further provided with a support foot, the support foot including a support base and a support rod, the support rod being fixed to the top of the support base and detachably connected to the base plate through the base plate; an adjusting nut is provided on the support rod, the adjusting nut being used to adjust the connection position between the support rod and the base plate.

[0036] In practical use, the support feet provide a stable support base for the tooling. The bottom of the support base can be equipped with anti-slip grooves to increase friction with the worktable and prevent the tooling from sliding during welding. Adjusting the height of each support foot with the adjusting nuts keeps the base plate level, preventing tooling tilting due to uneven ground and ensuring the stability and accuracy of the welding operation. The overall height of the base plate can also be adjusted using the adjusting nuts to meet the welding requirements of different piping systems.

[0037] The beneficial effects of this utility model are as follows:

[0038] This utility model provides an auxiliary tooling for pipeline welding. The tooling includes a base plate and a welding auxiliary structure. The welding auxiliary structure includes a positioning base, an adjusting rod, and a mounting component. The positioning base is detachably mounted on the base plate, the adjusting rod is mounted on the positioning base, and the mounting component is mounted on the adjusting rod. The adjusting rod is used to adjust the distance between the mounting component and the positioning base. During use, the positioning base is first adjusted to a suitable position on the base plate according to the location and requirements of the pipeline to be welded. Then, the adjusting rod is adjusted according to the required height of the pipeline to raise or lower the mounting component to a suitable height. Next, the auxiliary pipeline welding structure is installed on the mounting component, such as for positioning and supporting the pipeline, and then the pipeline welding work is carried out. During the welding process, if it is necessary to adjust the position or height of the pipeline, the position of the positioning base and the height of the adjusting rod can also be adjusted.

[0039] Because the positioning base is detachably mounted on the base plate, it can be moved to any position on the base plate according to different welding requirements. This allows the fixture to adapt to pipe welding work with different layouts and positions, greatly expanding its applicability. The adjusting rod allows for easy adjustment of the distance between the mounting component and the positioning base, thus adjusting the height of the mounting component according to different pipe diameters and welding requirements. Since this fixture can quickly adjust the position of the welding auxiliary structure on the base plate and the height of the mounting component, achieving rapid positioning and support of the pipeline, it significantly shortens the preparation time before welding and the adjustment time during welding, improving work efficiency. Attached Figure Description

[0040] Figure 1 This is a perspective view of the pipe welding auxiliary tooling provided in the embodiments of this utility model;

[0041] Figure 2 This is a perspective view of the welding auxiliary structure provided in an embodiment of this utility model;

[0042] Figure 3 This is a front view of the welding auxiliary structure provided in an embodiment of this utility model;

[0043] Figure 4 This is a cross-sectional view of the internal structure of the welding auxiliary structure provided in an embodiment of this utility model;

[0044] Figure 5 This is a schematic diagram of the sleeve provided in an embodiment of this utility model;

[0045] Figure 6 This is a schematic diagram of the positioning base in a magnetic state provided in an embodiment of this utility model.

[0046] Figure 7 This is a schematic diagram of the positioning base in a non-magnetic state provided in an embodiment of this utility model;

[0047] Figure 8 This is a schematic diagram of the positioning block provided in an embodiment of this utility model;

[0048] Figure 9 This is a schematic diagram of the nitrogen filling nozzle provided in an embodiment of this utility model.

[0049] Figure label:

[0050] 1. Base plate; 2. Support foot; 21. Support base; 22. Support rod; 23. Adjusting nut; 3. Welding auxiliary structure; 31. Positioning base; 311. Knob; 312. Magnetic shielding material; 313. First magnet; 314. Second magnet; 315. Mounting seat; 32. Adjusting rod; 321. Sleeve; 322. First locking sleeve; 3221. Deformation groove; 323. Second locking sleeve; 324. Lifting rod; 33. Mounting component; 4. Positioning block; 41. Positioning groove; 5. Nitrogen filling nozzle; 6. Connecting component. Detailed Implementation

[0051] Preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

[0052] To improve the welding quality of refrigeration system piping, specialized tooling is needed to assist production. Some existing welding aids for refrigeration system piping can support the piping from the bottom, ensuring it doesn't shift during welding and thus guaranteeing quality. However, refrigeration system piping comes in various forms, including straight pipes, bends, and irregularly shaped pipes, with numerous diameters and wall thicknesses. Different models of refrigeration equipment also have different piping layouts and connection methods. For example, in small household refrigerators, the piping is thin and compact; while in large commercial cold storage, the piping is large in diameter and long. This makes it difficult to meet all welding requirements with a single tooling, necessitating the design of multiple specialized toolings to assist production. However, this increases production costs and requires frequent tooling changes during production transitions, reducing efficiency and increasing labor intensity.

[0053] Based on this, this application provides an auxiliary tooling for pipeline welding.

[0054] Example 1

[0055] like Figures 1-9 As shown, this embodiment provides a pipe welding auxiliary tooling, including:

[0056] Base plate 1; specifically, as the basic support component of the entire tooling, base plate 1 can be made of a high-strength, stable metal material, such as stainless steel. Its surface is flattened to ensure that the welding auxiliary structure 3 can be stably installed on it. Alternatively, base plate 1 can also be made of plastic.

[0057] The welding auxiliary structure 3 includes a positioning base 31, an adjusting rod 32, and a mounting component 33. The positioning base 31 is detachably mounted on the base plate 1. The adjusting rod 32 is mounted on the positioning base 31, and the mounting component 33 is mounted on the adjusting rod 32. The adjusting rod 32 is used to adjust the distance between the mounting component 33 and the positioning base 31.

[0058] Specifically, the adjusting rod 32 in this application is implemented using a telescopic rod.

[0059] The device is used as follows: First, adjust the positioning base 31 to a suitable position on the base plate 1 according to the location and requirements of the welding pipeline. Then, adjust the adjusting rod 32 according to the height requirements of the pipeline to raise or lower the mounting component 33 to a suitable height. Next, install the auxiliary pipeline welding structure on the mounting component 33, such as positioning and supporting the pipeline, and then carry out the pipeline welding work.

[0060] Since the positioning base 31 is detachably mounted on the base plate 1, it can be moved to any position on the base plate 1 according to different welding requirements. This allows the fixture to adapt to pipe welding work with different layouts and positions, greatly expanding the applicability of the fixture. The adjusting rod 32 can easily adjust the distance between the mounting part 33 and the positioning base 31. For pipes of different heights, the adjusting rod 32 can be adjusted to ensure that the mounting part 33 accurately supports the pipe, ensuring the smooth progress of the welding work.

[0061] Because the positioning base 31 and adjusting rod 32 can be moved and adjusted to a suitable position and height quickly, a lot of manual handling and adjustment are not required, which reduces the labor intensity of workers and greatly shortens the preparation time before welding and the adjustment time during welding, thus improving work efficiency.

[0062] Example 2

[0063] like Figures 1-9 As shown, this embodiment is an improvement on embodiment 1.

[0064] In this embodiment, the positioning base 31 and the base plate 1 are magnetically attracted to each other;

[0065] The positioning base 31 includes a mounting base 315, in which a knob 311 is provided. A first magnet 313 and a second magnet 314 are respectively provided on opposite sides of the knob 311. The polarities of the first magnet 313 and the second magnet 314 are opposite.

[0066] Rotating the knob 311 can cause the first magnet 313 and the second magnet 314 to rotate.

[0067] In this embodiment, the base plate 1 is made of a metal material that can be attracted by a magnet. The bottom shape of the positioning base 31 is adapted to the surface of the base plate 1 to ensure a good fit. The positioning base 31 is also provided with threaded holes for installing the adjusting rod 32.

[0068] A first magnet 313 and a second magnet 314 are respectively installed on opposite sides of the knob 311, with opposite polarities. For example, the north pole of the first magnet 313 faces outward, and the south pole of the second magnet 314 faces outward. Rotating the knob 311 causes the first magnet 313 and the second magnet 314 to rotate synchronously. When the knob 311 is in a certain position, the magnetic field direction of the first magnet 313 and the second magnet 314 causes a strong magnetic attraction between the positioning base 31 and the base plate 1 (e.g., ...). Figure 6 This securely attaches the positioning base 31 to the base plate 1. When it is necessary to move the positioning base 31, the knob 311 is rotated to change the direction of the magnetic field between the first magnet 313 and the second magnet 314, thereby weakening or even eliminating the magnetic attraction between the positioning base 31 and the base plate 1 (e.g., Figure 7 At this point, the positioning base 31 can be easily moved to the desired position on the base plate 1, and then the knob 311 can be turned to restore the magnetic adsorption.

[0069] This application allows the positioning base 31 to be easily and quickly moved to any desired position on the base plate 1 by rotating the knob 311 to change the magnetic adsorption state. This greatly improves the positioning flexibility of the tooling and can adapt to various complex pipeline layouts. Whether it is pipelines in different positions inside refrigeration equipment or pipeline welding of different models of equipment, it can be positioned quickly.

[0070] The positioning base 31 can be fixed and moved simply by turning the knob 311, making operation simple and convenient. Workers do not need to spend a lot of time on complex installation and adjustment work, simplifying the operation process, reducing labor intensity, and also reducing errors that may be caused by complex operation, thereby improving work efficiency and welding quality.

[0071] More preferably, the bottom of the mounting base 315 is connected to the base plate 1, and magnetic shielding material 312 is provided on both the bottom and top of the mounting base 315.

[0072] The magnetic shielding material 312 at the bottom of the mounting base 315 optimizes the magnetic field distribution, making the magnetic adsorption between the positioning base 31 and the base plate 1 more stable and uniform. This avoids the problem of the positioning base 31 shaking or shifting due to uneven magnetic field distribution, ensuring that the tooling remains stable throughout the welding process, which is beneficial to improving welding quality.

[0073] In this embodiment, the magnetic shielding material 312 can be brass.

[0074] The method of using the auxiliary tooling in this application is as follows:

[0075] Based on the location requirements for pipeline welding, the placement position of the positioning base 31 is initially determined on the base plate 1.

[0076] Rotate knob 311 to make the magnetic field directions of magnet A and magnet B form a state that can generate strong magnetic attraction with base plate 1, and firmly fix positioning base 31 on base plate 1.

[0077] Adjust the adjusting rod 32 according to the height of the pipeline to adjust the height of the mounting component 33 so that the mounting component 33 is in a suitable position.

[0078] The relevant accessories for assisting in pipe welding are installed on the mounting part 33, and then the pipe to be welded is placed in the accessories on the mounting part 33 to achieve the purpose of positioning the pipe.

[0079] Perform pipe welding. If the position needs to be adjusted during welding, first turn knob 311 to weaken the magnetic attraction, move the positioning base 31 to the new position, and then turn knob 311 to restore the attraction and fixation. If the height needs to be adjusted, rotate the adjusting rod 32.

[0080] Example 3

[0081] like Figures 1-9 As shown, this embodiment is an improvement on embodiment 1.

[0082] In this embodiment, the adjusting rod 32 includes a sleeve 321 and a lifting rod 324, and the mounting member 33 is disposed on the top of the lifting rod 324;

[0083] The sleeve 321 is detachably mounted on the positioning base 31. A first locking sleeve 322 is provided on the top of the sleeve 321. The first locking sleeve 322 has a frustum-shaped structure. A first through hole is provided in the middle of the first locking sleeve 322. A deformation groove 3221 is provided on the side plate of the first locking sleeve 322.

[0084] A second locking sleeve 323 is sleeved on the lifting rod 324. The second locking sleeve 323 is threadedly connected to the outer wall of the first locking sleeve 322. When the second locking sleeve 323 and the first locking sleeve 322 are gradually locked together, the second locking sleeve 323 squeezes the first locking sleeve 322, causing the first locking sleeve 322 to contract toward the axis of the first through hole.

[0085] This embodiment provides a lifting adjustment method for the adjusting rod 32. When it is necessary to adjust the height of the mounting component 33, first loosen the second locking sleeve 323 so that the first locking sleeve 322 no longer exerts a clamping force on the lifting rod 324. At this time, the lifting rod 324 can move freely up and down in the sleeve 321. According to the actual welding requirements, adjust the lifting rod 324 to a suitable height position. After adjusting the height, rotate the second locking sleeve 323 so that it moves downward along the outer wall of the first locking sleeve 322. As the second locking sleeve 323 moves, it gradually squeezes the first locking sleeve 322. Due to the frustum-shaped structure of the first locking sleeve 322 and the deformation groove 3221 on the side plate, the first locking sleeve 322 will contract towards the axis of the first through hole, tightly holding the lifting rod 324 and fixing the lifting rod 324 at the current height position, thereby ensuring the height stability of the mounting component 33.

[0086] The adjusting rod 32 adopts a combination structure of sleeve 321 and lifting rod 324, allowing the height of the mounting part 33 to be flexibly adjusted according to actual welding requirements. The lifting rod 324 can be easily moved up and down and fixed by simply loosening and tightening the second locking sleeve 323, making the operation simple and quick. Moreover, this adjustment method allows for relatively precise height control, meeting the height accuracy requirements of different pipeline welding processes and improving welding quality.

[0087] More specifically, a connector 6 is provided between the sleeve 321 and the positioning base 31, and the sleeve 321 is detachably mounted on the positioning base 31 through the connector 6.

[0088] Both ends of the connector 6 are provided with threads, and the sleeve 321 and the positioning base 31 are connected by the threads on the connector 6, which can realize the stable and efficient installation of the sleeve 321 and the positioning base 31.

[0089] Example 4

[0090] like Figures 1-9 As shown, this embodiment is an improvement on embodiment 1.

[0091] In this embodiment, a method for positioning and supporting pipelines is provided. Specifically, the mounting component 33 is provided with a detachable positioning block 4, and the positioning block 4 is provided with a positioning groove 41. The positioning groove 41 is used to clamp and position the pipeline.

[0092] The positioning groove 41 on the positioning block 4 can precisely clamp and position the pipeline, ensuring that the pipeline will not shift or shake during welding. This makes the welding position more accurate, and the size and shape of the weld can better meet the design requirements, thereby improving welding precision and ensuring the welding quality of the refrigeration equipment pipeline. Since the positioning block 4 is detachable, the corresponding positioning block 4 can be replaced according to different pipe diameters and shapes. This makes the tooling adaptable to the welding needs of various specifications of pipelines, greatly enhancing the versatility of the tooling and reducing the cost for enterprises to purchase multiple special toolings for different pipeline welding tasks.

[0093] In one embodiment, the positioning block 4 can be fixed to the mounting component 33 by bolts. The detachable design of the positioning block 4 makes it simple and convenient to replace the positioning block 4 without the need for complex adjustments or disassembly of the entire tooling. At the same time, when the positioning block 4 is worn or damaged, it can be replaced individually, reducing the maintenance cost and difficulty of the tooling.

[0094] Example 5

[0095] like Figures 1-9 As shown, this embodiment is an improvement on embodiment 4.

[0096] In this embodiment, another implementation method for assisting pipe welding is provided. Specifically:

[0097] The base plate 1 is provided with a plurality of welding auxiliary structures 3, wherein at least one of the mounting parts 33 of the welding auxiliary structure 3 is provided with the positioning block 4, and at least one of the mounting parts 33 of the welding auxiliary structure 3 is provided with a nitrogen filling nozzle 5.

[0098] Multiple welding auxiliary structures 3 with positioning blocks 4 can accurately position the pipeline from different positions, ensuring that the pipeline maintains a stable position and posture during the welding process, reducing welding deformation and errors, and improving the quality and consistency of the weld.

[0099] The welding auxiliary structure 3 with nitrogen purging nozzle 5 can fill the pipeline with nitrogen gas during welding. As an inert gas, nitrogen can effectively remove oxygen from the pipeline, prevent internal oxidation during welding, avoid defects such as oxide scale and porosity, and improve the corrosion resistance and strength of the welded joint. The welding auxiliary structure 3 with positioning block 4 and nitrogen purging nozzle 5 is also set on the base plate 1, so that the tooling has both positioning and nitrogen protection functions, which can meet the welding tasks of different types and requirements of pipelines, and enhance the applicability and versatility of the tooling.

[0100] Example 6

[0101] like Figures 1-9As shown, this embodiment is an improvement on embodiment 1.

[0102] In this embodiment, the base plate 1 is provided with a plurality of mounting holes, and the bottom of the positioning base 31 is provided with a connecting post, which is threadedly connected to the mounting holes.

[0103] In this embodiment, the base plate 1 is made of a high-strength metal material, such as stainless steel, to ensure sufficient load-bearing capacity and stability. The surface of the base plate 1 is flat and smooth, and multiple mounting holes are evenly distributed on the base plate 1. The use of threaded connections between the connecting posts and the mounting holes ensures a tight and stable connection between the positioning base 31 and the base plate 1. Compared to magnetic adsorption and other connection methods, threaded connections offer higher strength and stability, effectively preventing the positioning base 31 from loosening or shifting due to external vibration or impact during welding, thereby ensuring the accuracy and quality of pipeline welding.

[0104] The base plate 1 is provided with multiple mounting holes, allowing for flexible selection of the mounting position of the positioning base 31 according to different welding requirements and pipeline layouts. When welding pipelines of different specifications or shapes is required, simply installing the positioning base 31 into the appropriate mounting hole allows for quick adjustment of the tooling layout, improving the versatility and applicability of the tooling.

[0105] Example 7

[0106] like Figures 1-9 As shown, this embodiment is an improvement on embodiment 1.

[0107] In this embodiment, the bottom of the base plate 1 is also provided with a support foot 2. The support foot 2 includes a support base 21 and a support rod 22. The support rod 22 is fixed to the top of the support base 21 and is detachably connected to the base plate 1 through the base plate 1. An adjusting nut 23 is provided on the support rod 22. The adjusting nut 23 is used to adjust the connection position between the support rod 22 and the base plate 1.

[0108] In practical use, the support feet 2 provide a stable support base for the tooling. The bottom of the support base 21 can be equipped with anti-slip textures to increase friction with the worktable and prevent the tooling from sliding during welding. Adjusting the height of each support foot 2 by adjusting the nuts 23 keeps the base plate 1 level, preventing tooling tilting due to uneven ground, thus ensuring the stability and accuracy of the welding operation. Adjusting the nuts 23 also allows for adjustment of the overall height of the base plate 1, meeting the welding requirements of different piping systems.

[0109] Example 8

[0110] like Figures 1-9As shown, this embodiment provides a pipeline welding method, which uses the pipeline welding auxiliary tooling described above for auxiliary welding.

[0111] The specific steps of this method are as follows:

[0112] Move the fixture onto the workbench, insert the support rod 22 of the support leg 2 into the through hole of the base plate 1, and install the adjusting nut 23. Adjust the height of each support leg 2 by rotating the adjusting nut 23 until the base plate 1 is level, ensuring the overall stability of the fixture.

[0113] Based on the layout of the pipeline to be welded and the welding process requirements, the positioning base 31 is fixed at the target position on the base plate 1. Here, the positioning base 31 can be fixed to the base plate 1 by magnetic attraction.

[0114] Loosen the second locking sleeve 323 on the adjusting rod 32 to allow the lifting rod 324 to move freely within the sleeve 321. Adjust the lifting rod 324 to the appropriate height according to the requirements of the pipeline height and welding position, and then tighten the second locking sleeve 323 to fix the position of the lifting rod 324.

[0115] Based on the diameter and shape of the pipeline to be welded, select a suitable positioning block 4 and install it onto the corresponding mounting part 33. Ensure that the positioning block 4 is firmly installed and that the positioning groove 41 can accurately clamp the pipeline.

[0116] The pipe to be welded is placed in the positioning groove 41 of the positioning block 4, so that the pipe is precisely clamped and positioned, ensuring that the pipe will not be displaced during the welding process.

[0117] Adjust the mounting bracket 33 with the nitrogen filling nozzle 5 to a suitable position, and connect the nitrogen filling nozzle 5 to the external nitrogen supply device through a pipeline, ensuring a tight connection without any leaks. Turn on the nitrogen supply device and adjust the nitrogen flow rate and pressure to meet the parameters required for the welding process, preparing for nitrogen purging protection during welding.

[0118] After the nitrogen supply is turned on and the pipeline is filled with nitrogen, welding operations begin. Welders follow the predetermined welding process and operating specifications to weld the seams of the pipeline. During the welding process, the welding quality is closely monitored, and welding parameters are adjusted promptly to ensure a uniform and strong weld.

[0119] After welding, first turn off the nitrogen supply device, then disconnect the connecting pipe between nitrogen inlet 5 and the nitrogen supply device. Perform a visual inspection of the welded pipeline to check for defects such as porosity and cracks in the weld. If defects are found, repair them promptly. Clean the pipeline surface of weld slag and impurities to ensure a clean surface.

[0120] Using this tooling for auxiliary welding allows for the completion of multiple operations such as pipeline positioning, nitrogen filling, and welding on the same tooling. This avoids the need to frequently transfer pipelines between different tooling or equipment, reduces operational steps and time waste, and improves overall production efficiency.

[0121] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings. In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms 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 the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0122] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0123] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application. The above description is only a preferred embodiment of this utility model and is not intended to limit this utility model. For those skilled in the art, this utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A pipe welding aid characterized by, include: Base plate (1); The welding auxiliary structure (3) includes a positioning base (31), an adjusting rod (32), and a mounting component (33). The positioning base (31) is detachably mounted on the base plate (1). The adjusting rod (32) is mounted on the positioning base (31), and the mounting component (33) is mounted on the adjusting rod (32). The adjusting rod (32) is used to adjust the distance between the mounting component (33) and the positioning base (31).

2. The auxiliary tooling for pipeline welding according to claim 1, characterized in that: The positioning base (31) and the base plate (1) are magnetically attracted to each other; The positioning base (31) includes a mounting base (315), in which a knob (311) is provided. A first magnet (313) and a second magnet (314) are respectively provided on opposite sides of the knob (311). The polarities of the first magnet (313) and the second magnet (314) are opposite. Rotating the knob (311) can cause the first magnet (313) and the second magnet (314) to rotate.

3. The auxiliary tooling for pipeline welding according to claim 2, characterized in that: The bottom of the mounting base (315) is connected to the base plate (1), and magnetic shielding material (312) is provided on both the bottom and top of the mounting base (315).

4. The auxiliary tooling for pipeline welding according to any one of claims 1-3, characterized in that: The adjusting rod (32) includes a sleeve (321) and a lifting rod (324), and the mounting member (33) is disposed on the top of the lifting rod (324); The sleeve (321) is detachably mounted on the positioning base (31). The top of the sleeve (321) is provided with a first locking sleeve (322). The first locking sleeve (322) has a frustum-shaped structure. The middle part of the first locking sleeve (322) is provided with a first through hole. The side plate of the first locking sleeve (322) is provided with a deformation groove (3221). A second locking sleeve (323) is fitted onto the lifting rod (324), and the second locking sleeve (323) is threadedly connected to the outer wall of the first locking sleeve (322). When the second locking sleeve (323) and the first locking sleeve (322) are gradually locked together, the second locking sleeve (323) squeezes the first locking sleeve (322), causing the first locking sleeve (322) to contract toward the axis of the first through hole.

5. The auxiliary tooling for pipeline welding according to claim 4, characterized in that: A connector (6) is provided between the sleeve (321) and the positioning base (31), and the sleeve (321) is detachably mounted on the positioning base (31) through the connector (6).

6. The auxiliary tooling for pipeline welding according to any one of claims 1-3, characterized in that: The mounting component (33) is provided with a detachable positioning block (4), and the positioning block (4) is provided with a positioning groove (41).

7. The auxiliary tooling for pipeline welding according to claim 6, characterized in that: The base plate (1) is provided with a plurality of welding auxiliary structures (3), wherein at least one of the mounting parts (33) of the welding auxiliary structure (3) is provided with the positioning block (4), and at least one of the mounting parts (33) of the welding auxiliary structure (3) is provided with a nitrogen filling nozzle (5).

8. The auxiliary tooling for pipeline welding according to claim 5, characterized in that: The base plate (1) is provided with multiple mounting holes, and the bottom of the positioning base (31) is provided with a connecting post, which is threadedly connected to the mounting holes.

9. The auxiliary tooling for pipeline welding according to any one of claims 1-3, characterized in that: The bottom of the base plate (1) is also provided with a support foot (2). The support foot (2) includes a support base (21) and a support rod (22). The support rod (22) is fixed to the top of the support base (21). The support rod (22) passes through the base plate (1) and is detachably connected to the base plate (1). An adjusting nut (23) is provided on the support rod (22). The adjusting nut (23) is used to adjust the connection position between the support rod (22) and the base plate (1).

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