Pipeline welding auxiliary tool and pipeline welding method

Abstract

The invention provides a pipeline welding auxiliary tool and a pipeline welding method, and belongs to the technical field of refrigeration equipment production, the pipeline welding auxiliary tool 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] The invention relates to the technical field of refrigeration equipment production, and in particular to a pipeline welding auxiliary tooling and a pipeline welding method. Background Art

[0002] In the field of refrigeration equipment manufacturing and maintenance, refrigeration system pipe welding is the core link that determines the performance and reliability of the equipment. Because whether it is a household air conditioner, refrigerator, commercial cold storage, or industrial refrigeration unit, all types of refrigeration equipment rely on pipelines to transport refrigerants to achieve heat exchange and refrigeration cycles.

[0003] In order to improve the welding quality of refrigeration system pipelines, it is necessary to design special tooling to assist production. There are some existing auxiliary tooling for welding of refrigeration system pipelines, which can support the pipeline from the bottom to ensure that the pipeline will not deviate during welding, thereby ensuring the welding quality. However, the refrigeration system pipelines are diverse in form, including straight pipes, bent pipes, special-shaped pipes, etc., and the pipe diameters and wall thicknesses are varied. Different models of refrigeration equipment have different pipeline layouts and connection methods. For example, in small household refrigerators, the pipelines are slender and compact; while the pipelines in large commercial cold storages are large in diameter and long in length. This makes it difficult to meet all welding requirements with a single tooling, so it is necessary to design a variety of special tooling to assist production, but this will increase production costs and require frequent tooling changes during production turnarounds, reducing production efficiency and increasing labor intensity.

[0004] Therefore, it is necessary to improve the existing handling process of waste refrigerators to overcome the defects of the prior art. Summary of the invention

[0005] In order to overcome the problems existing in the related art, one of the purposes of the present invention is to provide a pipeline welding auxiliary tooling, which can adjust the position of the welding auxiliary structure on the base plate, so as to realize the support of the pipeline at different positions and other auxiliary welding work. It has a large scope of application, helps to reduce the labor intensity of pipeline welding and improve work efficiency.

[0006] A pipeline welding auxiliary tool, comprising:

[0007] Base plate;

[0008] A welding auxiliary structure, the welding auxiliary structure includes a positioning base, an adjusting rod and a mounting piece, the positioning base is detachably arranged on the base 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 to adjust the distance between the mounting piece and the positioning base.

[0009] The method of using the device is as follows: first, adjust the positioning base to the appropriate position of the base plate according to the position and requirements of the welding pipeline. Then, according to the height requirements of the pipeline, adjust the adjustment rod to raise or lower the mounting piece to a suitable height. Next, install the structure that assists the pipeline welding on the mounting piece, such as positioning and supporting the pipeline, and then perform the pipeline welding work.

[0010] Since the positioning base is detachably arranged on the bottom plate, the positioning base can be moved to any position on the bottom plate according to different welding requirements. This enables the tooling to adapt to pipeline welding work with different layouts and positions, greatly expanding the scope of application of the tooling. The adjustment rod can easily adjust the distance between the mounting piece and the positioning base. For pipelines of different heights, the mounting piece can be adjusted to accurately support the pipeline by adjusting the adjustment rod to ensure smooth welding work.

[0011] Since the welding machine can be quickly adjusted to the appropriate position and height by moving the positioning base and adjusting the adjustment rod, there is no need for a lot of manual handling and adjustment, which reduces the labor intensity of workers, greatly shortens the preparation time before welding and the adjustment time during welding, and improves work efficiency.

[0012] In a preferred technical solution of the present invention, the positioning base and the bottom plate are mutually attracted by magnetism;

[0013] The positioning base comprises a mounting seat, a knob is arranged in the mounting seat, a first magnet and a second magnet are arranged on opposite sides of the knob, and the polarities of the first magnet and the second magnet are opposite;

[0014] Rotating the knob can drive 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, and the two have opposite polarities. For example, the north pole of the first magnet faces outward, and the south pole of the second magnet faces outward. When the knob is turned, the first magnet and the second magnet can be driven to rotate synchronously. When the knob is in a certain position, the direction of the magnetic field of the first magnet and the second magnet generates a strong magnetic attraction between the positioning base and the bottom plate, thereby firmly adsorbing the positioning base on the bottom plate. When the positioning base needs to be moved, the knob is turned to change the direction of the magnetic field of the first magnet and the second magnet, so that the magnetic attraction between the positioning base and the bottom plate is weakened or even disappears. At this time, the positioning base can be easily moved to the desired position on the bottom plate, and then the knob is turned to restore magnetic adsorption.

[0016] The present application changes the magnetic adsorption state by turning a knob, and can easily and quickly move the positioning base on the base plate to any desired position, greatly improving the positioning flexibility of the tooling and being able to adapt to various complex pipeline layouts, whether it is pipelines at different positions inside the refrigeration equipment or pipeline welding of different models of equipment, all can be quickly positioned.

[0017] The positioning base can be fixed and moved by simply turning the knob, which is simple and convenient to operate. Workers do not need to spend a lot of time on complex installation and adjustment work, which simplifies the operation process, reduces labor intensity, and also reduces the mistakes that may be caused by complex operations, improving work efficiency and welding quality.

[0018] In a preferred technical solution of the present invention, the bottom of the mounting seat is connected to the bottom plate, and magnetic shielding materials are provided on the bottom and top of the mounting seat.

[0019] The magnetic shielding material at the bottom of the mounting base can optimize 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 offset caused by uneven magnetic field distribution, ensures that the tooling remains stable during the welding process, and is conducive to improving the welding quality.

[0020] In a preferred technical solution of the present invention, the adjusting rod includes a sleeve and a lifting rod, and the mounting member is arranged on the top of the lifting rod;

[0021] The sleeve is disassembled and arranged on the positioning base, a first locking sleeve is arranged on the top of the sleeve, the first locking sleeve is a truncated cone structure, a first through hole is arranged in the middle of the first locking sleeve, and a deformation groove is arranged on the side plate of the first locking sleeve;

[0022] A second locking sleeve is sleeved on 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, the second locking sleeve squeezes the first locking sleeve so that the first locking sleeve shrinks toward the axis of the first through hole.

[0023] The present embodiment provides a lifting and lowering adjustment method for an adjusting rod. When the height of the mounting part needs to be adjusted, first loosen the second locking sleeve so that the first locking sleeve no longer generates a clamping force on the lifting rod. At this time, the lifting rod can move freely up and down in the sleeve. According to actual welding requirements, adjust the lifting rod to a suitable height position. After adjusting the height, rotate the second locking sleeve so that it moves downward along the outer wall of the first locking sleeve. As the second locking sleeve moves, it will gradually squeeze the first locking sleeve. Due to the truncated cone structure of the first locking sleeve and the deformation groove on the side panel, the first locking sleeve will shrink toward the axis of the first through hole, tightly hug the lifting rod, and fix the lifting rod at the current height position, thereby ensuring the height stability of the mounting part.

[0024] The adjustment rod adopts a combination structure of a sleeve and a lifting rod, so that the height of the mounting part can be flexibly adjusted according to the actual welding requirements. By simply loosening and tightening the second locking sleeve, the lifting rod can be easily moved up and down and fixed, and the operation process is simple and quick. Moreover, this adjustment method can achieve more accurate height control, which can meet the height accuracy requirements of different pipeline welding and improve the welding quality.

[0025] In a preferred technical solution of the present invention, a connecting piece is provided between the sleeve and the positioning base, and the sleeve is detachably arranged on the positioning base through the connecting piece.

[0026] The upper and lower ends of the connecting piece are both provided with threads, and the sleeve and the positioning base are respectively connected through the threads on the connecting piece, so that the sleeve and the positioning base can be stably and efficiently installed.

[0027] In a preferred technical solution of the present invention, a detachable positioning block is provided on the mounting member, and a positioning groove is provided on the positioning block. The positioning groove is used to clamp and position the pipeline.

[0028] The positioning groove on the positioning block can accurately clamp and position the pipeline to ensure that the pipeline will not be displaced or shaken during the welding process. This makes the welding position more accurate, and the size and shape of the weld can better meet the design requirements, thereby improving the welding accuracy and ensuring the welding quality of the refrigeration equipment pipeline. Since the positioning block is detachable, the corresponding positioning block can be replaced according to the pipeline of different diameters and shapes. This enables the tooling to adapt to the welding needs of pipelines of various specifications, greatly enhancing the versatility of the tooling and reducing the cost of enterprises purchasing multiple special tooling for different pipeline welding tasks.

[0029] In a preferred technical solution of the present invention, a plurality of welding auxiliary structures are arranged on the bottom plate, wherein at least one mounting part of the welding auxiliary structure is provided with the positioning block, and at least one mounting part of the welding auxiliary structure 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 filling nozzle can fill nitrogen into the pipeline during welding. As an inert gas, nitrogen can effectively remove oxygen from the pipeline, prevent internal oxidation of the pipeline during welding, avoid defects such as scale and pores, and improve the corrosion resistance and strength of the welded joint. The welding auxiliary structure with a positioning block and a nitrogen filling nozzle is set on the bottom plate at the same time, so that the tooling has two functions of positioning and nitrogen filling protection, which can meet pipeline welding tasks of different types and requirements, and enhance the applicability and versatility of the tooling.

[0032] In a preferred technical solution of the present invention, a plurality of mounting holes are arranged on the bottom plate, a connecting column is arranged at the bottom of the positioning base, and the connecting column is threadedly connected to the mounting holes.

[0033] In this embodiment, the connection column and the mounting hole are threadedly connected to form 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, and can effectively prevent the positioning base from loosening or displacement due to external force vibration or impact during the welding process, thereby ensuring the accuracy and quality of pipeline welding.

[0034] There are multiple mounting holes on the bottom plate, and the installation position of the positioning base can be flexibly selected according to different welding requirements and pipeline layouts. When welding pipelines of different specifications or shapes, just install the positioning base on the appropriate mounting hole to quickly adjust the layout of the tooling, which improves the versatility and applicability of the tooling.

[0035] In a preferred technical solution of the present invention, a supporting foot is also provided at the bottom of the base plate, and the supporting foot includes a supporting base and a supporting rod, the supporting rod is fixed to the top of the supporting base, and the supporting rod passes through the base plate and is detachably connected to the base plate; an adjusting nut is provided on the supporting rod, and the adjusting nut is used to adjust the connection position of the supporting rod and the base plate.

[0036] In actual use, the setting of the support feet provides a stable support foundation for the tooling. The bottom of the support base can be provided with anti-skid patterns to increase the friction with the workbench and prevent the tooling from sliding during welding. By adjusting the height of each support foot by adjusting the nut, the base plate can be kept level to avoid the tooling from tilting due to uneven ground, thereby ensuring the stability and accuracy of the welding operation. The overall height of the base plate can also be adjusted by adjusting the nut to meet the welding requirements of different pipeline systems.

[0037] A second object of the present invention is to provide a pipeline welding method, using the pipeline welding auxiliary tooling as described above to perform auxiliary welding.

[0038] The beneficial effects of the present invention are:

[0039] The present invention provides a pipeline welding auxiliary tool, which includes a base plate and a welding auxiliary structure, and the welding auxiliary structure includes a positioning base, an adjusting rod and a mounting piece. The positioning base is detachably arranged on the base 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 to adjust the distance between the mounting piece and the positioning base. During the use of the device, the positioning base is first adjusted to a suitable position on the base plate according to the position and requirements of the welding pipeline. Then, according to the height requirements of the pipeline, the adjusting rod is adjusted to make the mounting piece rise or fall to a suitable height. Then, a structure for auxiliary pipeline welding is installed on the mounting piece, such as positioning and supporting the pipeline, and then the pipeline welding work is carried out. During the welding process, if the position or height of the pipeline needs to be adjusted, the position of the positioning base and the height of the adjusting rod can also be adjusted. Since the positioning base is detachably arranged on the base plate, the positioning base can be moved to any position on the base plate according to different welding requirements. This enables the tool to adapt to pipeline welding work with different layouts and positions, greatly expanding the scope of application of the tool. The adjustment rod can easily adjust the distance between the mounting part and the positioning base, so that the height of the mounting part can be adjusted according to different pipe diameters and welding requirements. Since the tooling can quickly adjust the position of the welding auxiliary structure on the bottom plate and the height of the mounting part, it can achieve rapid positioning and support of the pipeline, thus greatly shortening the preparation time before welding and the adjustment time during welding, and improving work efficiency.

[0040] The present application also provides a pipeline welding method using the above-mentioned pipeline welding auxiliary tooling for auxiliary welding. The method can effectively support and position the pipeline through the auxiliary tooling, thereby ensuring welding quality and improving welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 is a three-dimensional diagram of a pipeline welding auxiliary tooling provided in an embodiment of the present invention;

[0042] Figure 2 is a three-dimensional diagram of a welding auxiliary structure provided in an embodiment of the present invention;

[0043] Figure 3 is a front view of a welding auxiliary structure provided in an embodiment of the present invention;

[0044] Figure 4 is a cross-sectional view of the interior of a welding auxiliary structure provided in an embodiment of the present invention;

[0045] Figure 5 is a schematic diagram of a sleeve provided in an embodiment of the present invention;

[0046] Figure 6 is a schematic diagram of a positioning base provided in an embodiment of the present invention when it is in a magnetic state;

[0047] Figure 7 is a schematic diagram of a positioning base provided in an embodiment of the present invention in a non-magnetic state;

[0048] Figure 8 is a schematic diagram of a positioning block provided in an embodiment of the present invention;

[0049] Fig. 9 Schematic diagram of a nitrogen filling nozzle provided in an embodiment of the present invention.

[0050] Reference numerals:

[0051] 1. Bottom 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 piece; 4. Positioning block; 41. Positioning groove; 5. Nitrogen filling nozzle; 6. Connecting piece. DETAILED DESCRIPTION

[0052] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0053] In order to improve the welding quality of refrigeration system pipelines, it is necessary to design special tooling to assist production. There are some existing auxiliary tooling for welding of refrigeration system pipelines, which can support the pipeline from the bottom to ensure that the pipeline will not deviate during welding, thereby ensuring the welding quality. However, the refrigeration system pipelines are diverse in form, including straight pipes, bent pipes, special-shaped pipes, etc., and the pipe diameters and wall thicknesses are varied. Different models of refrigeration equipment have different pipeline layouts and connection methods. For example, in small household refrigerators, the pipelines are slender and compact; while the pipelines in large commercial cold storages are large in diameter and long in length. This makes it difficult to meet all welding requirements with a single tooling, so it is necessary to design a variety of special tooling to assist production, but this will increase production costs and require frequent tooling changes during production turnarounds, reducing production efficiency and increasing labor intensity.

[0054] Based on this, the present application provides a pipeline welding auxiliary tooling.

[0055] Example 1

[0056] like Figure 1-Figure 9As shown, the present embodiment provides a pipeline welding auxiliary tool, comprising:

[0057] Bottom plate 1: Specifically, as the basic supporting component of the entire tooling, the bottom 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. In addition, the bottom plate 1 can also be made of plastic.

[0058] The welding auxiliary structure 3 includes a positioning base 31, an adjusting rod 32 and a mounting member 33. The positioning base 31 is detachably arranged on the base plate 1, the adjusting rod 32 is arranged on the positioning base 31, and the mounting member 33 is arranged on the adjusting rod 32; the adjusting rod 32 is used to adjust the distance between the mounting member 33 and the positioning base 31.

[0059] Specifically, the adjustment rod 32 of the present application is implemented by a telescopic rod.

[0060] The method of using the device is as follows: first, according to the position and requirements of the welding pipeline, adjust the positioning base 31 to a suitable position on the bottom plate 1. Then, according to the height requirements of the pipeline, adjust the adjustment rod 32 to raise or lower the mounting member 33 to a suitable height. Next, install a structure that assists pipeline welding on the mounting member 33, such as positioning and supporting the pipeline, and then perform pipeline welding.

[0061] Since the positioning base 31 is detachably arranged on the bottom plate 1, the positioning base 31 can be moved to any position on the bottom plate 1 according to different welding requirements. This enables the tooling to adapt to pipeline welding work of different layouts and positions, greatly expanding the scope of application of the tooling. The adjustment rod 32 can conveniently adjust the distance between the mounting member 33 and the positioning base 31. For pipelines of different heights, the mounting member 33 can be adjusted by adjusting the adjustment rod 32 to accurately support the pipeline, ensuring the smooth progress of the welding work.

[0062] Since the welding machine can be quickly adjusted to a suitable position and height by moving the positioning base 31 and adjusting the adjustment rod 32, there is no need for a lot of manual handling and adjustment, which reduces the labor intensity of workers, greatly shortens the preparation time before welding and the adjustment time during welding, and improves work efficiency.

[0063] Example 2

[0064] like Figure 1-Figure 9 As shown, this embodiment is improved on the basis of embodiment 1.

[0065] In this embodiment, the positioning base 31 and the base plate 1 are mutually attracted by magnetism;

[0066] The positioning base 31 includes a mounting base 315, a knob 311 is disposed in the mounting base 315, and a first magnet 313 and a second magnet 314 are disposed on opposite sides of the knob 311, respectively. The polarities of the first magnet 313 and the second magnet 314 are opposite.

[0067] Rotating the knob 311 can drive the first magnet 313 and the second magnet 314 to rotate.

[0068] In this embodiment, the bottom plate 1 is made of metal material that can be attracted by magnets. The bottom shape of the positioning base 31 is adapted to the surface of the bottom plate 1 to ensure good fit. The positioning base 31 is also provided with a threaded hole for installing the adjustment rod 32.

[0069] The first magnet 313 and the second magnet 314 are respectively installed on opposite sides of the knob 311, and the polarities of the two are opposite. For example, the north pole of the first magnet 313 faces outward, and the south pole of the second magnet 314 faces outward. When the knob 311 is turned, the first magnet 313 and the second magnet 314 can be driven 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 generates a strong magnetic attraction between the positioning base 31 and the bottom plate 1 (such as Figure 6 ), so that the positioning base 31 is firmly adsorbed on the bottom plate 1. When the positioning base 31 needs to be moved, the knob 311 is turned to change the magnetic field directions of the first magnet 313 and the second magnet 314, so that the magnetic attraction between the positioning base 31 and the bottom plate 1 is weakened or even eliminated (such as Figure 7 ), at this time, 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.

[0070] The present application changes the magnetic adsorption state by turning the knob 311, and can easily and quickly move the positioning base 31 to any desired position on the base plate 1, which greatly improves the positioning flexibility of the tooling and can adapt to various complex pipeline layouts. Whether it is pipelines at different positions inside the refrigeration equipment or pipeline welding of different models of equipment, they can all be quickly positioned.

[0071] The positioning base 31 can be fixed and moved by simply turning the knob 311, which is simple and convenient to operate. Workers do not need to spend a lot of time on complicated installation and adjustment work, which simplifies the operation process, reduces labor intensity, and also reduces possible mistakes caused by complicated operations, thereby improving work efficiency and welding quality.

[0072] More preferably, the bottom of the mounting seat 315 is connected to the bottom plate 1 , and the bottom and top of the mounting seat 315 are both provided with magnetic shielding material 312 .

[0073] The magnetic shielding material 312 at the bottom of the mounting seat 315 can optimize the magnetic field distribution, making the magnetic adsorption between the positioning base 31 and the bottom plate 1 more stable and uniform. This avoids the problem of the positioning base 31 shaking or deflecting due to uneven magnetic field distribution, ensures that the tooling remains stable during the welding process, and is conducive to improving the welding quality.

[0074] The magnetic shielding material 312 of this embodiment may be brass.

[0075] The method of using the auxiliary tooling of this application is as follows:

[0076] According to the position requirements of pipeline welding, the placement position of the positioning base 31 is preliminarily determined on the bottom plate 1.

[0077] The knob 311 is turned to make the magnetic field directions of the magnet A and the magnet B form a state that can produce strong magnetic adsorption with the bottom plate 1, so that the positioning base 31 is firmly fixed on the bottom plate 1.

[0078] According to the height of the pipeline, the adjusting rod 32 is adjusted to adjust the height of the mounting member 33 so that the mounting member 33 is in a suitable position.

[0079] The relevant accessories for assisting pipeline welding are installed on the mounting member 33, and then the pipeline to be welded is placed in the accessories on the mounting member 33 to achieve the purpose of positioning the pipeline.

[0080] If the position needs to be adjusted during welding, the knob 311 is first turned to weaken the magnetic adsorption force, and the positioning base 31 is moved to a new position and then the knob 311 is turned to restore the adsorption and fixation. If the height needs to be adjusted, the adjustment rod 32 is rotated.

[0081] Example 3

[0082] like Figure 1-Figure 9 As shown, this embodiment is improved on the basis of embodiment 1.

[0083] 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;

[0084] The sleeve 321 is detachably mounted on the positioning base 31, a first locking sleeve 322 is disposed on the top of the sleeve 321, the first locking sleeve 322 is a truncated cone structure, a first through hole is disposed in the middle of the first locking sleeve 322, and a deformation groove 3221 is disposed on the side plate of the first locking sleeve 322;

[0085] The lifting rod 324 is sleeved with a second locking sleeve 323, 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, the second locking sleeve 323 squeezes the first locking sleeve 322 so that the first locking sleeve 322 shrinks toward the axis of the first through hole.

[0086] The present embodiment provides a lifting and lowering adjustment method for the adjustment rod 32. When it is necessary to adjust the height of the mounting member 33, first loosen the second locking sleeve 323 so that the first locking sleeve 322 no longer generates 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 will gradually squeeze the first locking sleeve 322. Due to the truncated cone structure of the first locking sleeve 322 and the deformation groove 3221 on the side plate, the first locking sleeve 322 will shrink toward the axis of the first through hole, tightly hug the lifting rod 324, and fix the lifting rod 324 at the current height position, thereby ensuring the height stability of the mounting member 33.

[0087] The adjusting rod 32 adopts a combination structure of a sleeve 321 and a lifting rod 324, so that the height of the mounting member 33 can be flexibly adjusted according to the actual welding requirements. By simply loosening and tightening the second locking sleeve 323, the lifting rod 324 can be easily moved up and down and fixed, and the operation process is simple and fast. Moreover, this adjustment method can achieve more accurate height control, can meet the height accuracy requirements of different pipeline welding, and improve the welding quality.

[0088] More specifically, a connecting piece 6 is provided between the sleeve 321 and the positioning base 31 , and the sleeve 321 is detachably provided on the positioning base 31 through the connecting piece 6 .

[0089] The upper and lower ends of the connecting member 6 are both provided with threads, and the sleeve 321 and the positioning base 31 are respectively connected through the threads on the connecting member 6, so that the sleeve 321 and the positioning base 31 can be stably and efficiently installed.

[0090] Example 4

[0091] like Figure 1-Figure 9 As shown, this embodiment is improved on the basis of embodiment 1.

[0092] In this embodiment, an implementation method for positioning and supporting a pipeline is provided. Specifically, a detachable positioning block 4 is provided on the mounting member 33, and a positioning groove 41 is provided on the positioning block 4. The positioning groove 41 is used to clamp and position the pipeline.

[0093] The positioning groove 41 on the positioning block 4 can accurately clamp and position the pipeline to ensure that the pipeline will not be displaced or shaken during the welding process. This makes the welding position more accurate, and the size and shape of the weld can better meet the design requirements, thereby improving the welding accuracy 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 pipelines of different diameters and shapes. This enables the tooling to adapt to the welding needs of pipelines of various specifications, greatly enhancing the versatility of the tooling and reducing the cost of enterprises purchasing multiple special tooling for different pipeline welding tasks.

[0094] In one embodiment, the positioning block 4 can be fixed to the mounting member 33 by bolts. The detachable design of the positioning block 4 makes it easy and convenient to replace the positioning block 4 without complicated adjustment or disassembly of the entire tooling. At the same time, when the positioning block 4 is worn or damaged, it can be replaced separately, which reduces the maintenance cost and difficulty of the tooling.

[0095] Example 5

[0096] like Figure 1-Figure 9 As shown, this embodiment is improved on the basis of embodiment 4.

[0097] In this embodiment, another implementation method for assisting pipeline welding is provided. The details are as follows:

[0098] A plurality of welding auxiliary structures 3 are arranged on the bottom plate 1 , wherein the positioning block 4 is arranged on the mounting member 33 of at least one welding auxiliary structure 3 , and a nitrogen filling nozzle 5 is arranged on the mounting member 33 of at least one welding auxiliary structure 3 .

[0099] A plurality of 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.

[0100] The welding auxiliary structure 3 with the nitrogen filling nozzle 5 can fill nitrogen into the pipeline during welding. Nitrogen, as an inert gas, can effectively remove oxygen in the pipeline, prevent internal oxidation of the pipeline during welding, avoid defects such as scale and pores, and improve the corrosion resistance and strength of the welded joint. The welding auxiliary structure 3 with the positioning block 4 and the nitrogen filling nozzle 5 is also arranged on the bottom plate 1, so that the tooling has two functions of positioning and nitrogen filling protection, which can meet pipeline welding tasks of different types and requirements, and enhance the applicability and versatility of the tooling.

[0101] Example 6

[0102] like Figure 1-Figure 9As shown, this embodiment is improved on the basis of embodiment 1.

[0103] In this embodiment, a plurality of mounting holes are provided on the base plate 1 , and a connecting column is provided at the bottom of the positioning base 31 , and the connecting column is threadedly connected to the mounting holes.

[0104] In this embodiment, the base plate 1 is made of high-strength metal materials, such as stainless steel, to ensure that it has sufficient bearing capacity and stability. The surface of the base plate 1 is flat and smooth, and a plurality of mounting holes are evenly distributed on the base plate 1. The threaded connection between the connecting column and the mounting hole can form a tight and stable connection between the positioning base 31 and the base plate 1. Compared with connection methods such as magnetic adsorption, the threaded connection has higher strength and stability, and can effectively prevent the positioning base 31 from loosening or displacement due to external force vibration or impact during the welding process, thereby ensuring the accuracy and quality of pipeline welding.

[0105] The bottom plate 1 is provided with a plurality of mounting holes, and the mounting position of the positioning base 31 can be flexibly selected according to different welding requirements and pipeline layouts. When it is necessary to weld pipelines of different specifications or shapes, the positioning base 31 only needs to be installed on the appropriate mounting hole to quickly adjust the layout of the tooling, thereby improving the versatility and applicability of the tooling.

[0106] Example 7

[0107] like Figure 1-Figure 9 As shown, this embodiment is improved on the basis of embodiment 1.

[0108] In this embodiment, a supporting foot 2 is also provided at the bottom of the base plate 1, and the supporting foot 2 includes a supporting base 21 and a supporting rod 22, and the supporting rod 22 is fixed to the top of the supporting base 21, and the supporting 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 supporting rod 22, and the adjusting nut 23 is used to adjust the connection position of the supporting rod 22 and the base plate 1.

[0109] In actual use, the setting of the support foot 2 provides a stable support foundation for the tooling. The bottom of the support base 21 can be provided with anti-skid patterns to increase the friction with the workbench and prevent the tooling from sliding during welding. By adjusting the height of each support foot 2 by adjusting the nut 23, the base plate 1 can be kept level to avoid the tooling from tilting due to uneven ground, thereby ensuring the stability and accuracy of the welding operation. The overall height of the base plate 1 can also be adjusted by adjusting the nut 23 to meet the welding requirements of different pipeline systems.

[0110] Example 8

[0111] like Figure 1-Figure 9As shown, this embodiment provides a pipeline welding method, which uses the pipeline welding auxiliary tooling as described above to perform auxiliary welding.

[0112] The specific steps of this method are as follows:

[0113] Move the tooling to the workbench, insert the support rod 22 of the support foot 2 into the through hole of the base plate 1, and install the adjustment nut 23. By rotating the adjustment nut 23, adjust the height of each support foot 2 until the base plate 1 is in a horizontal state to ensure the overall stability of the tooling.

[0114] According to the layout of the pipeline to be welded and the welding process requirements, the positioning base 31 is fixed to the target position of the base plate 1. Here, the positioning base 31 can be fixed to the base plate 1 by magnetic attraction.

[0115] Loosen the second locking sleeve 323 on the adjusting rod 32, so that the lifting rod 324 can move freely in the sleeve 321. According to the height of the pipeline and the requirements of the welding position, adjust the lifting rod 324 to an appropriate height, and then tighten the second locking sleeve 323 to fix the position of the lifting rod 324.

[0116] According to the diameter and shape of the pipeline to be welded, select the appropriate positioning block 4 and install it on the corresponding mounting member 33. Ensure that the positioning block 4 is firmly installed and the positioning groove 41 can accurately clamp the pipeline.

[0117] The pipeline to be welded is placed in the positioning groove 41 of the positioning block 4 so that the pipeline is accurately clamped and positioned to ensure that the pipeline will not be displaced during the welding process.

[0118] Adjust the mounting part 33 with the nitrogen filling nozzle 5 to a suitable position, connect the nitrogen filling nozzle 5 to the external nitrogen supply device through a pipeline, and ensure that the connection is tight and there is no leakage. Turn on the nitrogen supply device, adjust the nitrogen flow and pressure to meet the parameters required by the welding process, and prepare for nitrogen filling protection during welding.

[0119] After the nitrogen supply is turned on and the pipeline is filled with nitrogen, the welding operation begins. The welders weld the pipeline according to the predetermined welding process and operating specifications. During the welding process, pay close attention to the welding quality and adjust the welding parameters in time to ensure that the weld is uniform and firm.

[0120] After welding is completed, turn off the nitrogen supply device first, and then remove the connecting pipe between the nitrogen filling nozzle 5 and the nitrogen supply device. Perform a visual inspection on the welded pipeline to check whether there are defects such as pores and cracks in the weld. If there are defects, repair them in time. Clean the welding slag and impurities on the surface of the pipeline to ensure that the pipeline surface is clean.

[0121] By using this tool for auxiliary welding, multiple operation steps such as pipeline positioning, nitrogen filling and welding can be completed on the same tool, avoiding frequent transfer of pipelines between different tools or equipment, reducing operation links and time waste, and improving overall production efficiency.

[0122] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings. In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0123] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0124] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this application. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pipeline welding auxiliary tool, characterized in that: include: Bottom plate (1); A welding auxiliary structure (3), the welding auxiliary structure (3) comprising a positioning base (31), an adjusting rod (32) and a mounting member (33); the positioning base (31) is detachably arranged on the base plate (1); the adjusting rod (32) is arranged on the positioning base (31); the mounting member (33) is arranged on the adjusting rod (32); the adjusting rod (32) is used to adjust the distance between the mounting member (33) and the positioning base (31).

2. The pipeline welding auxiliary tooling according to claim 1 is characterized in that: The positioning base (31) and the bottom plate (1) are mutually attracted by magnetism; The positioning base (31) comprises a mounting seat (315), a knob (311) is arranged in the mounting seat (315), a first magnet (313) and a second magnet (314) are respectively arranged on opposite sides of the knob (311), and the polarities of the first magnet (313) and the second magnet (314) are opposite; Rotating the knob (311) can drive the first magnet (313) and the second magnet (314) to rotate.

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

4. The pipeline welding auxiliary tooling according to any one of claims 1 to 3, characterized in that: The adjusting rod (32) comprises a sleeve (321) and a lifting rod (324), and the mounting member (33) is arranged on the top of the lifting rod (324); The sleeve (321) is detachably mounted on the positioning base (31); a first locking sleeve (322) is disposed on the top of the sleeve (321); the first locking sleeve (322) is a truncated cone-shaped structure; a first through hole is disposed in the middle of the first locking sleeve (322); and a deformation groove (3221) is disposed on a side plate of the first locking sleeve (322); A second locking sleeve (323) is sleeved on 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, the second locking sleeve (323) squeezes the first locking sleeve (322) so that the first locking sleeve (322) shrinks toward the axis of the first through hole.

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

6. The pipeline welding auxiliary tool according to any one of claims 1 to 3, characterized in that: A detachable positioning block (4) is provided on the mounting member (33), and a positioning groove (41) is provided on the positioning block (4).

7. The pipeline welding auxiliary tooling according to claim 6 is characterized in that: A plurality of welding auxiliary structures (3) are arranged on the bottom plate (1), wherein the positioning block (4) is arranged on a mounting piece (33) of at least one welding auxiliary structure (3), and a nitrogen filling nozzle (5) is arranged on a mounting piece (33) of at least one welding auxiliary structure (3).

8. The pipeline welding auxiliary tooling according to claim 5 is characterized in that: A plurality of mounting holes are provided on the bottom plate (1), and a connecting column is provided at the bottom of the positioning base (31), and the connecting column is threadedly connected to the mounting hole.

9. The pipeline welding auxiliary tool according to any one of claims 1 to 3, characterized in that: A support foot (2) is also provided at the bottom of the base plate (1), and the support foot (2) comprises a support base (21) and a support rod (22), wherein the support rod (22) is fixed to the top of the support base (21), and 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), and the adjusting nut (23) is used to adjust the connection position of the support rod (22) and the base plate (1).

10. A pipeline welding method, characterized in that: Auxiliary welding is performed using the pipeline welding auxiliary tooling as described in any one of claims 1 to 9.

Images