Tool for welding petroleum pipeline

Abstract

The utility model discloses a kind of tool for petroleum pipeline welding, involve petroleum pipeline processing technical field, including: first mounting seat, support platform, apron, first fixed component and restriction component, the support platform and the apron are all provided with several rollers, and the annular extension of several rollers is in the support groove or the limiting groove;The utility model supports short pipe by support platform, and apron is fixed on support platform by restriction component, and the radial of short pipe is limited, the fixing of short pipe position is completed, since the support platform and apron are all provided with several rollers, and the annular extension of several rollers is in support groove or limiting groove;Make short pipe contact with several rollers, so that short pipe can be rotated on support platform by driving assembly driving, make the position of welding head of keeping welding mechanism unchanged, adjacent short pipe butt joint place annular welding can be carried out, and welding difficulty is reduced.

Description

Technical Field

[0001] This utility model relates to the field of oil pipeline processing technology, specifically to a tooling for welding oil pipelines. Background Technology

[0002] Petroleum is a viscous, dark brown liquid, often referred to as the "blood of industry." It is found in certain areas of the Earth's upper crust. Its main components are a mixture of various alkanes, cycloalkanes, and aromatic hydrocarbons. It is a primary target for geological exploration, and after extraction, it needs to be transported long distances to various locations via pipelines.

[0003] During the manufacturing and processing of oil pipelines, multiple short pipes need to be welded end to end to increase the pipeline length. In existing technology, when welding oil pipelines, the short pipes are first fixed on a fixture, and then a welding mechanism welds the joints of two short pipes. Since the joints need to be welded sequentially in a circumferential direction, and the short pipes cannot rotate after being fixed by the fixture in the existing technology, the welding can only be completed by the movement of the welding head. Therefore, the accuracy of the welding head's movement trajectory is required to a high degree, making the manufacturing process quite difficult.

[0004] In view of this, there is an urgent need for a tooling for welding oil pipelines to overcome the shortcomings of existing technologies. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model solves the problem using the following technical structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A welding fixture for oil pipelines includes: a first mounting base, a support platform, a cover plate, a first fixing component, and a limiting component. The first fixing component is used to fix the first mounting base. The support platform is disposed on the top of the first mounting base. The support platform is provided with an upward-opening support groove. The cover plate is provided with a limiting groove. The limiting component is used to fix the cover plate on the support platform, such that the opening of the limiting groove is opposite to the opening of the support groove.

[0008] Both the support platform and the cover plate are provided with a number of rollers, and the rollers extend circumferentially into the support groove or the limiting groove.

[0009] The cover plate has a rotating end and a free end at its two ends, respectively. A first rotating shaft is provided on the support platform, and the rotating end is disposed on the first rotating shaft. The limiting component is used to fix the free end on the support platform.

[0010] The limiting component includes a limiting bolt, a rotating component is provided on the support platform, the limiting bolt is threadedly connected to the rotating component, and a U-shaped groove is provided on the free end.

[0011] The first fixing component includes a fixing plate and a plurality of fixing bolts, wherein the fixing plate is fixed to the bottom of the first mounting base by the plurality of fixing bolts.

[0012] The bottom of the first mounting base is provided with a positioning groove.

[0013] A support plate is provided on one side of the support platform.

[0014] The cover plate is provided with a pressure plate on the same side as the support plate.

[0015] A second rotating shaft is provided on one side of the support platform. A limiting plate is provided on the second rotating shaft. A straight limiting hole is provided on the limiting plate. A limiting post is provided on one side of the rotating end. The limiting post is locked in the limiting hole.

[0016] The axial direction of the first rotating shaft is consistent with the axial direction of the second rotating shaft, but the axis of the first rotating shaft does not coincide with the axis of the second rotating shaft.

[0017] The support platform is fixed to the first mounting base by bolts.

[0018] Both the support groove and the limiting groove are arc-shaped.

[0019] The above-described structure of this utility model can achieve the following beneficial effects:

[0020] The short pipe is supported by a support platform, and the cover plate is fixed to the support platform by a limiting component, which limits the radial movement of the short pipe and fixes its position. Since both the support platform and the cover plate are equipped with several rollers that extend circumferentially into the support groove or limiting groove, the short pipe comes into contact with the rollers. The short pipe can then be driven to rotate on the support platform by a drive component, keeping the welding head of the welding mechanism in a constant position. This allows for circumferential welding of adjacent short pipe joints, reducing the difficulty of welding. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of Embodiment 1;

[0022] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0023] Figure 3 This is a schematic diagram of the drive mechanism in Embodiment 1.

[0024] Figure 4This is a schematic diagram of the ejector mechanism in Embodiment 1.

[0025] Figure 5 This is a schematic diagram of the structure when adjacent fixing mechanisms are used together in this embodiment.

[0026] Figure 6 This is a schematic diagram of the fixing mechanism in Embodiment 1;

[0027] Figure 7 This is a structural schematic diagram of the fixing mechanism from another perspective in Embodiment 1;

[0028] Figure 8 This is a schematic diagram of the structure of the support platform in this embodiment.

[0029] Figure 9 This is a schematic diagram of the heating mechanism in Embodiment 1.

[0030] Figure 10 This is a schematic diagram of the length measuring mechanism in Embodiment 1.

[0031] In the diagram: 1. Frame; 2. Drive mechanism; 21. Drive component; 22. Clamping assembly; 3. Ejector mechanism; 31. Sliding seat; 32. Ejector; 4. Fixing mechanism; 41. First mounting seat; 411. Positioning groove; 42. Support platform; 421. Support groove; 422. Support plate; 423. First rotating shaft; 424. Second rotating shaft; 43. Cover plate; 431. Limiting groove; 432. Pressure plate; 44. Roller; 45. Limiting bolt; 46. Rotating component; 47. Slot; 48. Fixing plate; 49. Fixing bolt; 5. Track plate; 51. Positioning strip; 6. Limiting plate; 61. Limiting hole; 7. Limiting post; 8. Heating mechanism; 81. Second mounting seat; 82. Heat insulation pad; 83. Heating plate; 9. Length measuring mechanism; 91. Measuring head; 100. Sleeve. Detailed Implementation

[0032] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0033] It should be noted that the terms "comprising" and "having" and any variations thereof in the specification, claims and accompanying drawings of this utility model are intended to cover non-exclusive inclusion. For example, a process, method, apparatus, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such processes, methods, products or devices.

[0034] The following is in conjunction with the appendix Figure 1-10 This application will be described in further detail.

[0035] Example 1, Reference Figures 1-3 The illustrated oil pipeline welding device includes: a frame 1, on which a drive mechanism 2, a pin mechanism 3, a welding mechanism, and several fixing mechanisms 4 are mounted (the specific number is adjusted according to processing requirements; the fixing mechanisms 4 are tooling for oil pipeline welding); the several fixing mechanisms 4 are arranged sequentially along a straight line, and the fixing mechanisms 4 are used to fix short pipes, making the short pipes horizontal; the welding mechanism is slidably mounted on one side of the several fixing mechanisms 4, and the welding mechanism is used to weld the short pipes; the drive mechanism 2 includes a drive component 21 and a clamping assembly 22, the clamping assembly 22 and the pin mechanism 3 are respectively mounted on the sides of the two outermost fixing mechanisms 4 that are far apart from each other, the clamping assembly 22 is used to clamp the short pipes on the adjacent fixing mechanisms 4, and the drive component 21 is used to drive the clamping assembly 22 to rotate; the pin mechanism 3 is used to apply force towards the short pipes on the adjacent fixing mechanisms 4 towards the clamping assembly. The thrust on one side of component 22; thus, during processing, each fixing mechanism 4 fixes a short pipe, and the clamping assembly 22 clamps the end of an adjacent short pipe. The ejector mechanism 3 applies a thrust to the short pipe towards the clamping assembly 22, so that the ends of the short pipes on several fixing mechanisms 4 are in contact. Due to the consistency of the support height of several fixing mechanisms 4, the short pipes on several fixing mechanisms 4 are coaxial. Then, the welding mechanism welds the joints between adjacent short pipes in sequence. At the same time, the driving assembly 21 drives the clamping assembly 22 to rotate, so that the short pipes being welded rotate synchronously in the same direction. The welding mechanism welds the joints in sequence in the circumferential direction until the welding of the short pipes on several fixing mechanisms 4 is completed, so that several short pipes form a long oil pipeline. Fixing several short pipes at one time before welding ensures that several short pipes are set coaxially, which is beneficial to improving the coaxiality of several short pipes and improving the welding efficiency of the oil pipeline.

[0036] like Figure 1 and Figure 2As shown, in order to facilitate the adjustment of the position of the fixing mechanism 4, the frame 1 is provided with a first slide rail extending along a straight line. Several fixing mechanisms 4 are slidably arranged on the first slide rail. In this embodiment, the first slide rail is composed of two parallel track plates 5. The two track plates 5 are suspended on the side that is close to each other. According to the welding requirements, the fixing mechanism 4 slides on the two track plates 5 to adjust the distance between adjacent fixing mechanisms 4 to adapt to the welding of short pipes of different lengths.

[0037] like Figure 4 As shown, in order to position several short tubes axially, the ejector mechanism 3 includes a sliding seat 31 and an ejector pin 32. The sliding seat 31 is set on the first slide rail, and the ejector pin 32 is horizontally rotatably set on the side of the sliding seat 31 close to the fixing mechanism 4. Thus, by pushing the sliding seat 31 to slide on the first slide rail, the ejector pin 32 is pressed against the end of an adjacent short tube, so that the ends of several short tubes are in contact. Then the sliding seat 31 is locked on the first slide rail. When the drive assembly 21 drives the short tube to rotate, the ejector pin 32 rotates relative to the sliding seat 31. Alternatively, a motor can be set on the sliding seat 31 to make the clamping assembly 22 and the ejector pin 32 rotate synchronously, so that the short tubes on both sides rotate synchronously.

[0038] like Figures 5-8 As shown, the fixing mechanism 4 includes a first mounting base 41, a support platform 42, a cover plate 43, a first fixing component, and a limiting component. The first mounting base 41 is slidably mounted on a first slide rail. The first fixing component is used to lock the first mounting base 41 onto the first slide rail. The support platform 42 is fixed to the top of the first mounting base 41 by bolts. The support platform 42 is provided with an upward-opening support groove 421. The cover plate 43 is provided with a limiting groove 431. The limiting component is used to fix the cover plate 43 onto the support platform 42, so that the opening of the limiting groove 431 is opposite to the opening of the support groove 421. Both the support groove 421 and the limiting groove 431 are arc-shaped. The short pipe is supported by the support platform 42, and the cover plate 43 is fixed on the support platform 42 by the limiting component, which limits the radial movement of the short pipe and fixes its position. The first mounting seat 41 is slidably set on the two track plates 5, which facilitates the adjustment of the position of the support platform 42. Furthermore, the support platform 42 and the cover plate 43 are provided with several rollers 44, which extend circumferentially into the support groove 421 or the limiting groove 431. The short pipe is brought into contact with the rollers 44, and the drive component 21 drives the short pipe to rotate, so that the welding head of the welding mechanism remains unchanged, and the circumferential welding of the joint of adjacent short pipes can be performed.

[0039] like Figure 6 and Figure 7As shown, the cover plate 43 has a rotating end and a free end at its two ends. A first rotating shaft 423 is provided on the support platform 42, and the rotating end is disposed on the first rotating shaft 423. A limiting component is used to fix the free end to the support platform 42. The limiting component includes a limiting bolt 45, and a rotating part 46 is provided on the support platform 42. The limiting bolt 45 is threadedly connected to the rotating part 46. A U-shaped groove 47 is provided on the free end. In this way, the cover plate 43 rotates on the support platform 42 without obstructing the support groove 42. The opening 1 facilitates placing the short pipe on the support platform 42 or removing the short pipe from the support platform 42; the setting of the limiting bolt 45 allows the rotating part 46 to rotate relative to the support platform 42 (rotating in a direction perpendicular to the horizontal plane) after the cover plate 43 is closed on the support platform 42, so that the limiting bolt 45 enters the slot 47, and then the limiting bolt 45 is rotated so that the nut of the limiting bolt 45 locks in the slot 47 on the side away from the support platform 42, thereby fixing the cover plate 43 on the support platform 42.

[0040] like Figure 7 As shown, in order to allow the first mounting base 41 to slide on the two track plates 5 and to be easily locked at a certain point on the track plates 5, the first fixing component includes a fixing plate 48 and several fixing bolts 49. The fixing plate 48 is fixed to the bottom of the first mounting base 41 by the several fixing bolts 49. The sides of the two track plates 5 that are close to each other are both located between the fixing plate 48 and the first mounting base 41. When it is necessary to adjust the position of the first mounting base 41, the several fixing bolts 49 are turned to increase the distance between the first mounting base 41 and the fixing plate 48, so that the first mounting base 41 can slide on the track plate 5. When it is necessary to lock the position of the first mounting base 41, the several fixing bolts 49 are turned in the opposite direction to clamp the fixing plate 48 and the first mounting base 41, fixing them on the upper and lower sides of the track plate 5, thus completing the locking of the position of the first mounting base 41.

[0041] Further optimizations include, for example Figure 2 As shown, a positioning strip 51 is provided on a track plate 5. The positioning strip 51 is aligned with the extension direction of the track plate 5. The bottom of the first mounting base 41 is provided with a positioning groove 411 that is adapted to the positioning strip 51. In this way, the positioning groove 411 is engaged with the positioning strip 51, thereby positioning and restricting the position of the first mounting base 41 in the second direction (the second direction is perpendicular to the extension direction of the first slide rail) and the position perpendicular to the first slide rail direction, so as to ensure that the short tubes on several fixing mechanisms 4 are coaxial.

[0042] like Figure 6 As shown, in order to increase the support area for the short pipe, a support plate 422 is provided on one side of the support platform 42. Correspondingly, a pressure plate 432 is provided on the same side of the cover plate 43 and the support plate 422. The pressure plate 432 cooperates with the support plate 422 to fix the short pipe.

[0043] like Figure 6 and Figure 7 As shown, in order to limit the rotation angle of the cover plate 43, a second rotating shaft 424 is provided on one side of the support platform 42. A limiting plate 6 is provided on the second rotating shaft 424. A straight limiting hole 61 is provided on the limiting plate 6. A limiting post 7 is provided on one side of the rotating end. The limiting post 7 is locked in the limiting hole 61. The axial direction of the first rotating shaft 423 is consistent with the axial direction of the second rotating shaft 424. The axis of the first rotating shaft 423 does not coincide with the axis of the second rotating shaft 424. Thus, when the cover plate 43 rotates, the limiting post 7 slides in the limiting hole 61. The end of the limiting hole 61 away from the second rotating shaft 424 is the limit position of the movement of the limiting post 7. That is, at this time, the cover plate 43 and the support platform 42 are at the maximum angle.

[0044] like Figure 5 and Figure 9 As shown, a heating mechanism 8 is provided between each of the two adjacent fixing mechanisms 4. The heating mechanism 8 includes a second mounting base 81, a heat insulation pad 82, a heating plate 83, and a second fixing component. The second mounting base 81 is slidably mounted on the first slide rail. The second fixing component (the structure of the second fixing component is the same as that of the first fixing component, and will not be described in detail here) is used to lock the second mounting base 81 on the first slide rail. The heat insulation pad 82 is located at the top of the second mounting base 81, and the heating plate 83 is located at the top of the heat insulation pad 82. In order to improve welding efficiency and welding quality, a heating mechanism 8 is provided at the joint of two adjacent short pipes. Heating is performed by the heating mechanism 8 to increase the temperature at the joint, which facilitates welding.

[0045] like Figure 1 and Figure 10 As shown, a second slide rail is provided on one side of the first slide rail. The second slide rail is parallel to the first slide rail. A length measuring mechanism 9 is provided on the second slide rail. The length measuring mechanism 9 is used to measure the distance between the two outermost short pipes on the sides that are far apart from each other. The length measuring mechanism 9 includes a length measuring sensor 91. The sensor 91 detects the two outermost short pipes on the sides that are far apart from each other, thereby calculating the length of the entire oil pipeline.

[0046] Example 2: A method for welding oil pipelines, based on the oil pipeline welding apparatus described in Example 1, the method comprising:

[0047] Several short pipes are fixed by several fixing mechanisms 4 respectively, and a sleeve 100 is provided between two adjacent fixing mechanisms 4, and the sleeve 100 is sleeved on one of the short pipes.

[0048] The clamping assembly 22 clamps the ends of adjacent short tubes, and the ejector mechanism 3 applies a pushing force toward the clamping assembly 22 to the short tubes on the adjacent fixing mechanism 4, so that several short tubes are connected in sequence.

[0049] The welding mechanism welds the short pipe joints sequentially from the side closest to the clamping assembly 22; while the welding mechanism is welding, the driving assembly 21 drives the clamping assembly 22 to rotate.

[0050] After the welding of the joint between two adjacent short pipes is completed, several sleeves 100 are placed over the joint.

[0051] The welding mechanism welds the two ends of several sleeves 100 to the corresponding short pipes; while the welding mechanism is welding, the drive component 21 drives the clamping component 22 to rotate.

[0052] Once the two ends of the sleeve 100 are welded to the corresponding short pipes, the welding of the oil pipeline is complete.

[0053] Furthermore, considering that the weld seam is hard and prone to cracking after laser wire filler welding at the short pipe joint, the welding mechanism includes a laser welding component and an argon arc welding component.

[0054] The welding mechanism sequentially welds the short pipe joints from the side closest to the clamping assembly 22, including: first, using a laser welding assembly to perform laser filler wire welding on the joints of two adjacent short pipes, and then using an argon arc welding assembly to perform argon arc welding on the weld seam in the circumferential direction. The argon arc welding reduces the hardness of the weld, thereby reducing the probability of cracks appearing at the weld.

[0055] In summary, during processing, each fixing mechanism 4 fixes a short pipe, and the clamping assembly 22 clamps the end of an adjacent short pipe. The ejector mechanism 3 applies a thrust to the short pipe towards one side of the clamping assembly 22, causing the ends of the short pipes on the fixing mechanisms 4 to fit together. Due to the consistent support height of the fixing mechanisms 4, the short pipes on the fixing mechanisms 4 are coaxial. Then, the welding mechanism sequentially welds the joints between adjacent short pipes. At the same time, the driving assembly 21 drives the clamping assembly 22 to rotate, causing the short pipes being welded to rotate synchronously in the same direction. The welding mechanism sequentially welds the joints in a circumferential direction until the welding of the short pipes on the fixing mechanisms 4 is completed, so that the short pipes form a long oil pipeline. Fixing several short pipes at once before welding ensures that the short pipes are coaxially set, which helps to improve the coaxiality of the short pipes and improves the welding efficiency of the oil pipeline.

[0056] The above are merely preferred embodiments of this application, and the present invention is not limited to the above embodiments. It is understood that other improvements and variations that can be directly derived or conceived by those skilled in the art without departing from the spirit and concept of the present invention should be considered to be included within the protection scope of the present invention.

Claims

1. A tooling for welding oil pipelines, characterized in that, include: The first mounting base (41), the support platform (42), the cover plate (43), the first fixing component, and the limiting component are provided. The first fixing component is used to fix the first mounting base (41). The support platform (42) is disposed on the top of the first mounting base (41). The support platform (42) is provided with an upward-opening support groove (421). The cover plate (43) is provided with a limiting groove (431). The limiting component is used to fix the cover plate (43) on the support platform (42) so that the opening of the limiting groove (431) is opposite to the opening of the support groove (421). Both the support platform (42) and the cover plate (43) are provided with a number of rollers (44), and the rollers (44) extend circumferentially into the support groove (421) or the limiting groove (431).

2. The tooling for welding oil pipelines according to claim 1, characterized in that: The cover plate (43) has a rotating end and a free end at its two ends, respectively. A first rotating shaft (423) is provided on the support platform (42), and the rotating end is provided on the first rotating shaft (423). The limiting component is used to fix the free end on the support platform (42).

3. The tooling for welding oil pipelines according to claim 2, characterized in that: The limiting component includes a limiting bolt (45), a rotating part (46) is provided on the support platform (42), the limiting bolt (45) is threadedly connected to the rotating part (46), and the free end is provided with a U-shaped groove (47).

4. The tooling for welding oil pipelines according to claim 1, characterized in that: The first fixing component includes a fixing plate (48) and a plurality of fixing bolts (49), wherein the fixing plate (48) is fixed to the bottom of the first mounting base (41) by the plurality of fixing bolts (49).

5. The tooling for welding oil pipelines according to claim 4, characterized in that: The bottom of the first mounting base (41) is provided with a positioning groove (411).

6. The tooling for welding oil pipelines according to claim 1, characterized in that: A support plate (422) is provided on one side of the support platform (42).

7. The tooling for welding oil pipelines according to claim 6, characterized in that: The cover plate (43) is provided with a pressure plate (432) on the same side as the support plate (422).

8. The tooling for welding oil pipelines according to claim 2, characterized in that: A second rotating shaft (424) is provided on one side of the support platform (42), a limiting plate (6) is provided on the second rotating shaft (424), a straight limiting hole (61) is provided on the limiting plate (6), and a limiting post (7) is provided on one side of the rotating end, and the limiting post (7) is locked in the limiting hole (61). The axial direction of the first rotating shaft (423) is consistent with the axial direction of the second rotating shaft (424), but the axis of the first rotating shaft (423) does not coincide with the axis of the second rotating shaft (424).

9. The tooling for welding oil pipelines according to claim 1, characterized in that: The support platform (42) is fixed to the first mounting base (41) by bolts.

10. The tooling for welding oil pipelines according to claim 1, characterized in that: Both the support groove (421) and the limiting groove (431) are arc-shaped.

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