Butt joint equipment for filling pipeline welding and using method thereof

Abstract

The embodiment of the invention provides butt joint equipment for filling pipeline welding and a using method of the butt joint equipment, and relates to the field of pipeline welding. The butt joint equipment for filling pipeline welding comprises a base, two supporting mechanisms and two clamping mechanisms. The two supporting mechanisms and the two clamping mechanisms are arranged on the base, the two supporting mechanisms are used for supporting a pipeline, and the two clamping mechanisms are used for clamping the pipeline; the pipeline clamping device further comprises a driving assembly, the driving assembly is connected with the two clamping mechanisms, the driving assembly is used for driving the clamping mechanisms to clamp a pipeline, and the driving assembly is further used for driving the clamping mechanisms to rotate so as to indirectly drive the pipeline to rotate. According to the butt joint equipment for filling pipeline welding, an operator does not need to use climbing equipment for operation, and if a robot is adopted for welding, the problem that the running stroke of the robot is limited is solved.

Description

Technical Field

[0001] The invention relates to the field of pipeline welding, and in particular to a butt joint device for filling pipeline welding and a use method thereof. Background Art

[0002] Filled pipes are widely used in the fields of chemical industry, petroleum, natural gas, etc. The welding process in their manufacturing process is a key link to ensure the strength, sealing and service life of the pipes. Filled pipes are usually filled with specific fillers (such as Raschig rings) to achieve the functions of mass transfer, heat transfer or medium separation. During the welding process, the filled pipe sections need to be accurately butt-jointed and firmly connected, while avoiding damage to the internal fillers due to high temperature or mechanical stress. Traditional filled pipe welding mostly adopts butt welding, which requires precise groove alignment, high weld quality, and strict non-destructive testing standards (such as X-ray testing and penetration testing). However, when dealing with the special structure of filled pipes, existing welding technologies often face problems such as low efficiency and insufficient filler protection, and there is an urgent need for an efficient and adaptive welding equipment.

[0003] Filling pipes usually have a larger diameter and length, for example, the diameter ranges from 1 meter to 1.8 meters. At present, the welding of filling pipes mainly relies on manual operation or robot assistance. During manual welding, operators need to use climbing equipment (such as scaffolding or lifting platform) to work, which not only poses a safety hazard, but also has low efficiency. The welding quality is easily affected by human factors and it is difficult to ensure consistency. Although robotic welding has improved the degree of automation, it is limited by the robot's operating range and flexibility. It is difficult to complete welding around a larger diameter pipe. Especially in long pipe sections or complex layouts, the robot needs to adjust its position frequently, resulting in a longer construction period. Therefore, it is difficult for the existing technology to simultaneously meet the requirements of efficiency, quality and filler protection for filling pipe welding. A new type of docking equipment is urgently needed to solve the above problems. Summary of the invention

[0004] According to an embodiment of the present invention, a butt joint device for filling pipe welding and a method of using the same are provided, which are used for the problems raised by the above background technology.

[0005] In a first aspect of the present invention, a butt joint device for welding filled pipes is provided.

[0006] The butt-jointing device for welding the filling pipe comprises: a base, two supporting mechanisms and two clamping mechanisms; the two supporting mechanisms and the two clamping mechanisms are respectively arranged on the base, the two supporting mechanisms are used to support the pipes, and the two clamping mechanisms are used to clamp the pipes; and also comprises a driving component, the driving component is connected to the two clamping mechanisms, the driving component is used to drive the clamping mechanisms to clamp the pipes, and the driving component is also used to drive the clamping mechanisms to rotate, so as to indirectly drive the pipes to rotate.

[0007] Preferably, the support mechanism includes a lifting assembly, a support plate and a support assembly; the lifting assembly is installed on the upper surface of the base, the cross-section of the support plate is V-shaped, the number of the support assemblies is at least two, and the support assembly is arranged on the support plate.

[0008] Preferably, the lifting assembly includes a base plate, two first support rods, two second support rods, a cylinder, two first mounting parts and two second mounting parts; the base plate is fixedly mounted on the upper surface of the base, the two first mounting parts are fixedly mounted on the upper surface of the base plate, the two second mounting parts are fixedly mounted on the support plate, the two first support rods are slidably connected to the first slide groove of the first mounting part, the two first support rods one end away from the first mounting part is slidably connected to the second slide groove of the second mounting part, the two second support rods are rotatably connected to the base plate, the two second support rods one end away from the base plate are rotatably connected to the support plate, the first support rod and the second support rod intersect with each other, and the intersection forms a rotational connection through a rotating shaft, the cylinder is rotatably mounted on the base plate, the output end of the cylinder is connected to a crossbeam, and the crossbeam is fixedly connected to the two second support rods.

[0009] Preferably, the support assembly includes a support seat and a ball bearing, the support seat is fixedly connected to the support plate, and the ball bearing is rollingly installed in the support seat.

[0010] Preferably, the clamping mechanism includes a support frame, two first mounting plates, two second mounting plates, a first locking assembly, three clamping claws and a second locking assembly; the two first mounting plates are connected to each other, and an installation space is formed between the two first mounting plates, the three clamping claws are rotatably installed between the two first mounting plates, the two clamping claws are provided with a lever, the two first mounting plates are provided with a first arc groove, the lever passes through the first arc groove and is slidably connected to the first arc groove, the two second mounting plates are rotatably connected to the support frame, the two second locking assemblies are connected to the support frame, the second locking assembly is used to lock the second mounting plates, an installation space for installing the second locking assembly is formed between the first mounting plate and the second mounting plate, the second locking assembly is installed between the first mounting plate and the second mounting plate, the second mounting plate is provided with a second arc groove, the lever passes through the second arc groove and is slidably connected to the second arc groove.

[0011] Preferably, the first locking assembly includes a transmission ring, three pawls, three ratchet wheels, three connecting rods, a transmission gear, a rack and a first electric push rod; the transmission ring is rotatably connected to the first mounting disk, the clamp is connected to the first mounting disk through a connecting shaft, the connecting shaft passes through the first mounting disk and is connected to the ratchet, the three connecting rods are rotatably connected to the transmission ring, the ends of two connecting rods away from the transmission ring are connected to the pawls, the pawls are rotatably connected to the first mounting disk, the end of the pawls is meshed with the ratchet, the first electric push rod is connected to the first mounting disk, the first electric push rod is installed on the first mounting disk, the output end of the first electric push rod is fixedly connected to the rack, the transmission gear is rotatably connected to the first mounting disk, the rack is meshed with the transmission gear, and the inner wall of the transmission ring is provided with a locking tooth meshed with the transmission gear.

[0012] Preferably, the second locking assembly includes a second electric push rod and a locking block, the locking block is rotatably connected to the support frame, the second electric push rod is rotatably connected to the support frame, and the output end of the second electric push rod is rotatably connected to the locking block.

[0013] Preferably, three fixed shafts are fixedly installed between two of the second mounting plates, bearings are provided on the three fixed shafts, and the inner wall of the first mounting plate is in contact with the bearings.

[0014] Preferably, the driving assembly includes a motor, a driving shaft and two driving gears; the motor is fixedly mounted on the upper surface of the base, the driving shaft is connected to the output end of the motor, a gear ring is fixedly mounted between the two first mounting plates, the two driving gears are fixedly connected to the driving shaft, and the two driving gears are respectively meshed with the gear rings of two clamping mechanisms.

[0015] In a second aspect of the present invention, a method for using a butt-jointing device for filling pipe welding is provided, comprising the following steps: The first step is to place two sections of the filling pipe to be welded on two supporting mechanisms respectively, and make the two sections of the pipe approach each other along the base direction and pass through the corresponding clamping mechanism until the ends of the two sections of the pipe contact each other to form a butt joint state; The second step is to start the driving assembly to drive the two clamping mechanisms to clamp the two pipe sections and keep them fixed to ensure that the grooves at the pipe joints are aligned; The third step is to choose manual welding or robot welding according to welding requirements: If robot welding is adopted, the welding gun of the welding robot is adjusted to the position of the pipe joint, and the driving assembly is started to drive the two clamping mechanisms to rotate synchronously. The clamping mechanisms drive the two sections of the pipe to rotate around their axes at a constant speed for one circle, and the welding gun remains in a fixed position to complete the continuous welding of the annular weld. If manual welding is used, the operator performs segmented welding at the pipe joint. After welding each arc segment, the driving assembly is started to drive the clamping mechanism to rotate a preset angle, driving the pipe to rotate to the next welding position, and repeating the welding and rotation steps until the pipe rotates one circle to complete the entire annular weld; Step 4: After welding is completed, stop the drive assembly, release the clamping mechanism from clamping the pipe, and remove the welded pipe.

[0016] One or more technical solutions provided in this application have at least the following technical effects or advantages: The present invention provides a docking device for welding filled pipes and a method of using the same. The docking device for welding filled pipes does not require an operator to use climbing equipment to operate. If robot welding is used, the problem of limited robot travel is solved. The equipment avoids the safety hazards of traditional climbing operations and reduces the frequency of manual adjustment of pipes through the cooperation of a support mechanism and a clamping mechanism; the automatic rotation of the pipe is achieved through a driving assembly, overcoming the limitation of insufficient robot travel, and is particularly suitable for filled pipes with a diameter of 1 to 1.8 meters; the flexible cushion layer and precise clamping force control of the clamping mechanism reduce the damage of mechanical stress to internal fillers (such as Raschig rings), and local cooling measures can be used during welding to further protect the fillers. The present invention has a reasonable structure and is easy to operate, and can effectively meet the requirements of efficiency, quality and filler protection for filled pipe welding.

[0017] It should be understood that the contents described in the summary of the invention are not intended to limit the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other features, advantages and aspects of the embodiments of the present invention will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, wherein: Figure 1 It shows a three-dimensional structural schematic diagram of a butt-jointing device for filling pipe welding according to an embodiment of the present invention; Figure 2 It shows a three-dimensional structural schematic diagram of a supporting mechanism of a butt-jointing device for filling pipe welding according to an embodiment of the present invention; Figure 3 It shows a schematic diagram of the front view of the supporting mechanism of the butt-jointing device for filling pipe welding according to an embodiment of the present invention; Figure 4 It shows a three-dimensional structural schematic diagram of a clamping mechanism of a butt-jointing device for filling pipe welding according to an embodiment of the present invention; Figure 5 It shows an exploded structural schematic diagram of a clamping mechanism of a butt-jointing device for filling pipe welding according to an embodiment of the present invention; Figure 6 It shows a side structural schematic diagram of a clamping mechanism of a butt-jointing device for filling pipe welding according to an embodiment of the present invention; Figure 7 It shows a schematic diagram of the three-dimensional structure of the first mounting plate of the butt-jointing device for filling pipe welding according to an embodiment of the present invention; Figure 8 A schematic diagram of the three-dimensional structure of the clamping jaws of the butt-jointing device for filling pipe welding according to an embodiment of the present invention is shown; Fig. 9 It shows a three-dimensional structural schematic diagram of a first locking assembly of a butt joint device for filling pipe welding according to an embodiment of the present invention; Fig.10 It shows a schematic diagram of the three-dimensional structure of the first mounting plate of the butt joint device for filling pipe welding according to an embodiment of the present invention; Fig.11 A schematic diagram of the three-dimensional structure of a second locking assembly of a butt joint device for filling pipe welding according to an embodiment of the present invention is shown; Fig.12 A schematic diagram of the connection structure of the clamping jaws and the ratchet wheel of the butt-jointing device for filling pipe welding according to an embodiment of the present invention is shown; Fig.13 A schematic structural diagram of a ratchet wheel of a butt-jointing device for filling pipe welding according to an embodiment of the present invention is shown; Fig.14 A three-dimensional structural schematic diagram of a support assembly of a butt-jointing device for filling pipe welding according to an embodiment of the present invention is shown.

[0019] Tag Name 1-base, 2-support mechanism, 21-lifting assembly, 211-bottom plate, 212-first support rod, 213-second support rod, 214-cylinder, 215-first mounting member, 2151-first slide, 216-second mounting member, 2161-second slide, 217-beam, 22-support plate, 23-support assembly, 231-support seat, 232-ball, 3-clamping mechanism, 31-support frame, 32-first mounting plate, 321-first arc groove, 322-gear ring, 33- The second mounting plate, 331-the second arc groove, 332-the fixed shaft, 333-the bearing, 34-the first locking assembly, 341-the transmission ring, 342-the pawl, 343-the ratchet, 344-the connecting rod, 345-the transmission gear, 346-the rack, 347-the first electric push rod, 35-the clamping claw, 351-the lever, 352-the connecting shaft, 36-the second locking assembly, 361-the second electric push rod, 362-the locking block, 4-the driving assembly, 41-the motor, 42-the driving shaft, 43-the driving gear. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] In addition, the term "and / or" in this article is only a description of the association relationship between the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0022] In a first aspect of the present invention, a butt joint device for filling pipe welding is provided. Figures 1 to 14As shown, the butt-jointing equipment for filling pipe welding includes: a base 1, two supporting mechanisms 2 and two clamping mechanisms 3; the two supporting mechanisms 2 and the two clamping mechanisms 3 are respectively arranged on the base 1, the two supporting mechanisms 2 are used to support the pipe, and the two clamping mechanisms 3 are used to clamp the pipe; it also includes a driving component 4, the driving component 4 is connected to the two clamping mechanisms 3, the driving component 4 is used to drive the clamping mechanisms 3 to clamp the pipe, and the driving component 4 is also used to drive the clamping mechanisms 3 to rotate, so as to indirectly drive the pipe to rotate. Specifically, the base 1 is the main supporting structure of the equipment, which carries the two supporting mechanisms 2 and the two clamping mechanisms 3 along the length direction; the supporting mechanism 2 is used to support the pipe and reduce the movement resistance; When in use, two pipes to be welded are placed on the support mechanism 2, and the two pipes are pushed so that the pipes are close to each other and pass through the clamping mechanism 3 so that the ends of the two pipes contact each other to form a docking state. Then, the driving component 4 is used to drive the clamping mechanism 3 to clamp and fix the two pipes, and then the staff or the robot performs welding. During the robot welding process, the driving component 4 is used to drive the two clamping mechanisms 3 to rotate, and the two clamping mechanisms 3 drive the two pipes to rotate synchronously. At this time, the position of the robot's welding gun remains unchanged. When the pipe rotates one circle, the annular weld between the two pipes is completed. During manual welding, after a certain arc segment is manually welded, the driving component 4 is used to drive the clamping mechanism 3 to rotate, and the two clamping mechanisms 3 drive the two pipes to rotate a preset angle, and then the manual welding continues, and so on and so forth until the pipe rotates one circle to complete the entire weld welding. In specific operation, the driving component 4 is started, and the driving component 4 drives the clamping mechanism to clamp the pipe. When the robot is welding, the driving component 4 drives the pipe to rotate one circle at a constant speed, and the rotation speed is set according to the welding process requirements; when manually welding, the rotation angle is 30° or 60° each time.

[0023] There is no need for operators to use climbing equipment to perform operations. If robot welding is used, the problem of limited robot travel is solved. This equipment avoids the safety hazards of traditional climbing operations and reduces the frequency of manual adjustment of pipelines through the cooperation of support mechanism 2 and clamping mechanism 3; the automatic rotation of the pipeline is achieved through driving component 4, overcoming the limitation of insufficient robot travel, and is particularly suitable for filling pipelines with a diameter of 1 meter to 1.8 meters; the flexible cushion layer and precise clamping force control of clamping mechanism 3 reduce the damage of mechanical stress to internal fillers (such as Raschig rings), and local cooling measures can be used during welding to further protect the fillers. The present invention has a reasonable structure and is easy to operate, and can effectively meet the requirements of efficiency, quality and filler protection for filling pipeline welding.

[0024] In this embodiment, the support mechanism 2 includes a lifting assembly 21, a support plate 22 and a support assembly 23; the lifting assembly 21 is installed on the upper surface of the base 1, the cross section of the support plate 22 is V-shaped, the number of the support assemblies 23 is at least two, and the support assembly 23 is arranged on the support plate 22. Specifically, the lifting assembly 21 adopts a hydraulic cylinder or an electric push rod, the bottom end of which is fixed to the base 1, and the top end is connected to the bottom of the support plate 22, and the support plate 22 is driven to rise and fall in the vertical direction through telescopic action; the V-shaped cross-section design of the support plate 22 enables it to adapt to pipes of different diameters, and the inner surface of the V-shaped groove contacts the outer wall of the pipe to provide stable lateral support; in this embodiment, the support assembly 23 includes a plurality of rollers, the axis of the rollers is parallel to the axis of the pipe, and is evenly distributed on the inclined surfaces on both sides of the V-shaped groove, and the surface of the rollers is in rolling contact with the outer wall of the pipe to reduce the friction resistance when the pipe moves.

[0025] Since the sizes of the pipelines may vary, a support mechanism 2 is provided. The height of the support plate 22 is adjusted by the lifting assembly 21. The support plate 22 can support the pipeline at different heights to accommodate pipelines of different sizes. Specifically, the telescopic range of the lifting assembly 21 can be preset and adjusted according to the change in pipeline diameter, so that the height of the support plate 22 can adapt to pipelines with diameters ranging from 1 meter to 1.8 meters; the V-shaped support plate 22 ensures that the pipeline remains horizontal and stable during placement and movement through its tilt angle and the rolling support of the rollers, avoiding positional deviation caused by size differences. Through the above design, the support mechanism 2 can effectively cooperate with subsequent clamping and welding operations, improving the versatility and operating efficiency of the equipment.

[0026] In this embodiment, the lifting assembly 21 includes a base plate 211, two first support rods 212, two second support rods 213, a cylinder 214, two first mounting members 215 and two second mounting members 216; the base plate 211 is fixedly mounted on the upper surface of the base 1, the two first mounting members 215 are fixedly mounted on the upper surface of the base plate 211, the two second mounting members 216 are fixedly mounted on the support plate 22, the two first support rods 212 are slidably connected to the first slide grooves 2151 of the first mounting members 215, and the two first support rods 212 are away from the first One end of the mounting member 215 is slidably connected to the second slide groove 2161 of the second mounting member 216, the two second support rods 213 are rotatably connected to the base plate 211, the ends of the two second support rods 213 away from the base plate 211 are rotatably connected to the support plate 22, the first support rod 212 and the second support rod 213 intersect with each other, and the intersection forms a rotatable connection through a rotating shaft, the cylinder 214 is rotatably mounted on the base plate 211, and the output end of the cylinder 214 is connected to a crossbeam 217, and the crossbeam 217 is fixedly connected between the two second support rods 213.

[0027] like Figure 2 and Figure 3 As shown, when the output end of the cylinder 214 is extended, the cylinder 214 drives the second support rod 213 to move through the cross beam 217, and the movement of the second support rod 213 will drive the first support rod 212 to move, and the first support rod 212 slides in the first slide groove 2151 and the second slide groove 2161 respectively, and the first support rod 212 and the second support rod 213 drive the support plate 22 to move upward. When the output end of the cylinder 214 is retracted, the output end of the cylinder 214 drives the first support rod 212 and the second support rod 213 to move through the cross beam 217, and the first support rod 212 and the second support rod 213 will drive the support plate 22 to move downward, thereby realizing the height adjustment of the support plate 22. The support plate 22 can support the pipeline at different heights to accommodate pipelines of different sizes.

[0028] In this embodiment, the support assembly 23 includes a support seat 231 and a ball 232 . The support seat 231 is fixedly connected to the support plate 22 , and the ball 232 is rollingly installed in the support seat 231 .

[0029] like Fig.14 As shown, when the pipe is placed on the support plate 22, the pipe contacts the ball 232, and the ball 232 supports the pipe. When the pipe performs linear or rotational motion, the ball 232 rolls in the support seat 231, reducing friction between the pipe and the outer wall of the pipe to avoid damage.

[0030] In this embodiment, the clamping mechanism 3 includes a support frame 31, two first mounting plates 32, two second mounting plates 33, a first locking assembly 34, three clamping claws 35 and a second locking assembly 36; the two first mounting plates 32 are connected to each other, and a mounting space is formed between the two first mounting plates 32, and the three clamping claws 35 are rotatably mounted in the mounting space between the two first mounting plates 32 through a rotating shaft, and each of the clamping claws 35 is provided with a lever 351, and the two first mounting plates 32 are respectively provided with a first arc groove 321, and the lever 351 passes through the first arc groove 321 and is connected to the first arc groove 3 21 is slidably connected, the two second mounting plates 33 are rotatably connected to the support frame 31 through bearings, the two second locking assemblies 36 are fixed on the support frame 31, the second locking assemblies 36 are used to lock the second mounting plate 33, an installation space for installing the second locking assemblies 36 is formed between the first mounting plate 32 and the second mounting plate 33, the second locking assemblies 36 are installed between the first mounting plate 32 and the second mounting plate 33, a second arc groove 331 is provided on the second mounting plate 33, the lever 351 passes through the second arc groove 331 and is slidably connected to the second arc groove 331. Specifically, the support frame 31 is fixed on the base 1, the first mounting plate 32 and the second mounting plate 33 are circular plates, the arc directions of the first arc groove 321 and the second arc groove 331 correspond to the rotation trajectory of the clamping claw 35, the lever 351 is a cylindrical structure, and its two ends slide in the first arc groove 321 and the second arc groove 331 respectively.

[0031] When in use, the driving assembly 4 drives the two first mounting disks 32 to rotate around their central axis. At this time, the second locking assembly 36 locks the second mounting disk 33 to keep the second mounting disk 33 stationary. As the first mounting disk 32 rotates, the first mounting disk 32 drives the three clamping jaws 35 to rotate synchronously through the rotating shaft. At this time, the lever 351 moves along the arc path in the second arc groove 331. At the same time, the lever 351 slides relative to the first arc groove 321. The lever 351 moves along its path under the guidance of the first arc groove 321, driving the clamping jaw 35 to rotate relative to the first mounting disk 32 around its rotating shaft. The clamping jaw 35 gradually rotates outward until the inner surface of the clamping jaw 35 is in close contact with the outer wall of the pipeline. At this time, the three clamping jaws 35 are evenly distributed around the circumference of the pipeline to form a stable clamping of the pipeline. Specifically, a flexible cushion layer (such as a rubber cushion) is provided on the inner surface of the clamping jaw 35 to increase friction and avoid damaging the outer wall of the pipeline.

[0032] When the clamping jaws 35 clamp the pipe, the first locking assembly 34 unidirectionally locks the three clamping jaws 35, so that the clamping jaws 35 that have been rotated out cannot be retracted in the reverse direction. Specifically, the first locking assembly 34 includes a ratchet and a pawl structure, the ratchet is fixed on the rotating shaft of the clamping jaw 35, and the pawl is installed on the inner side of the first mounting plate 32 and meshes with the ratchet, allowing the clamping jaw 35 to rotate unidirectionally in the clamping direction only, thereby ensuring the stability of the clamping state.

[0033] When it is necessary to drive the pipe to rotate, the driving assembly 4 is used to continue to drive the two first mounting disks 32 to rotate, and the second locking assembly 36 is unlocked from locking the second mounting disk 33. Since the three clamping claws 35 are in close contact with the outer wall of the pipe and are restricted by the first locking assembly 34 and cannot be extended further, as the first mounting disk 32 rotates, the three clamping claws 35 rotate synchronously with the first mounting disk 32. The levers 351 of the three clamping claws 35 drive the second mounting disk 33 to rotate around the bearing of the support frame 31 through the thrust of the second arc groove 331. At this time, the pipe rotates with the clamping of the three clamping claws 35, thereby realizing the driving of the pipe. Specifically, the second locking assembly 36 adopts an electromagnetic brake or a mechanical bayonet structure, which limits the rotation of the second mounting disk 33 in the locked state and allows it to rotate freely after unlocking. The rotation speed of the driving assembly 4 can be adjusted by the control system to meet the welding process requirements.

[0034] When the pipe welding is completed, the two first mounting plates 32 are driven to rotate in the reverse direction, and the one-way locking of the clamping jaws 35 by the first locking assembly 34 is released. The three clamping jaws 35 rotate inward under the reverse sliding action of the lever 351 along the first arc groove 321 and the second arc groove 331, and the clamping of the pipe is cancelled, and then the welded pipe can be taken out. Specifically, the ratchet of the first locking assembly 34 is disengaged from the ratchet wheel by electromagnetic or manual means, and when the first mounting plate 32 is rotated in the reverse direction, the clamping jaws 35 are guided by the arc groove to return to the initial position. The whole process is easy to operate and ensures the reliability of clamping and releasing.

[0035] In this embodiment, the first locking assembly 34 includes a transmission ring 341, three pawls 342, three ratchet wheels 343, three connecting rods 344, a transmission gear 345, a rack 346 and a first electric push rod 347; the transmission ring 341 is rotatably connected to the first mounting plate 32 through a bearing, the clamping claw 35 is connected to the first mounting plate 32 through a connecting shaft 352, the connecting shaft 352 passes through the first mounting plate 32 and is fixedly connected to the ratchet wheel 343, one end of the three connecting rods 344 is rotatably connected to the transmission ring 341 by a hinged manner, and the three connecting rods 344 are away from the first mounting plate 32. One end of the transmission ring 341 is hinged to the three ratchets 342 respectively, the ratchets 342 are rotatably connected to the first mounting plate 32 through a rotating pin, the end of the ratchets 342 is meshed with the ratchet 343, the first electric push rod 347 is fixedly mounted on the first mounting plate 32, the output end of the first electric push rod 347 is fixedly connected to the rack 346, the transmission gear 345 is rotatably connected to the first mounting plate 32 through a rotating shaft, the rack 346 is meshed with the transmission gear 345, and the inner wall of the transmission ring 341 is provided with an annular clamping tooth meshing with the transmission gear 345. Specifically, the transmission ring 341 is an annular structure, and the inner wall clamping tooth forms a gear transmission relationship with the transmission gear 345, and the connecting shaft 352 is a cylindrical shaft body, which is welded or keyed to the clamping jaw 35 and fixed to the ratchet 343 through a keyway.

[0036] The connecting shaft 352 is fixedly connected to the clamping jaw 35, and the connecting shaft 352 is rotatably connected to the first mounting plate 32 via a bearing. Figure 7 , Figure 8 , Fig. 9 , Fig.12 and Fig.13As shown, when the first mounting plate 32 rotates, the first mounting plate 32 drives the first electric push rod 347 and the transmission ring 341 to rotate together. Although the transmission ring 341 is connected to the first mounting plate 32 by a bearing, the output end of the first electric push rod 347 remains stationary in the initial state. The transmission ring 341 remains fixed relative to the first mounting plate 32 through the meshing relationship between the rack 346, the transmission gear 345 and the inner wall of the transmission ring 341. When the three clamping claws 35 extend outward, the three clamping claws 35 drive the three ratchets 343 to rotate synchronously through the connecting shaft 352. The ratchet 343 cooperates with the ratchet 342, wherein a torsion spring (not shown in the figure) is installed on the ratchet 342. The torsion spring provides continuous torque to the ratchet 342, so that the end of the ratchet 342 always tends to mesh with the ratchet 343, thereby achieving a one-way locking of the ratchet 343, thereby limiting the reverse retraction of the clamping claw 35. When the clamping jaw 35 needs to be unlocked to retract the clamping jaw 35, the first electric push rod 347 is controlled to extend, and its output end drives the rack 346 to move in a straight line, and the rack 346 drives the transmission gear 345 to rotate. The transmission gear 345 drives the transmission ring 341 to rotate relative to the first mounting plate 32 by meshing with the inner wall teeth of the transmission ring 341. The rotation of the transmission ring 341 pulls the three pawls 342 to rotate synchronously around the rotating pin through the three connecting rods 344, so that the end of the pawl 342 is out of meshing with the ratchet wheel 343, thereby releasing the locking effect on the ratchet wheel 343 and the clamping jaw 35. Specifically, the stroke and thrust of the first electric push rod 347 can be preset according to the locking requirements of the clamping jaw 35 to ensure the accuracy and reliability of the unlocking action.

[0037] In this embodiment, the second locking assembly 36 includes a second electric push rod 361 and a locking block 362. The locking block 362 is rotatably connected to the support frame 31 through a rotating shaft. The second electric push rod 361 is rotatably connected to the support frame 31 through a hinge seat. The output end of the second electric push rod 361 is rotatably connected to the locking block 362 through a hinged manner. Specifically, the locking block 362 is a wedge-shaped block with a certain thickness, and its contact surface is provided with a high friction material such as a rubber layer to enhance the friction effect with the second mounting plate 33; the second electric push rod 361 is fixed to the side of the support frame 31, and its telescopic direction matches the rotation plane of the locking block 362.

[0038] like Fig.11As shown, the second electric push rod 361 is controlled to extend, and the output end of the second electric push rod 361 pushes the locking block 362 to rotate around its rotation axis until the contact surface of the locking block 362 is in close contact with the outer edge of the second mounting plate 33, and the second mounting plate 33 is locked by means of the friction between the locking block 362 and the second mounting plate 33; conversely, the second electric push rod 361 is controlled to be retracted, and its output end pulls the locking block 362 to rotate in the opposite direction, so that the locking block 362 is out of contact with the second mounting plate 33, thereby releasing the lock on the second mounting plate 33. Specifically, the stroke of the second electric push rod 361 can be preset by the control system to ensure the accuracy and reliability of the locking and unlocking actions.

[0039] In this embodiment, three fixed shafts 332 are fixedly installed between the two second mounting plates 33, and bearings 333 are respectively sleeved on the three fixed shafts 332. The inner wall of the first mounting plate 32 contacts the outer ring of the bearing 333, thereby realizing the rotation connection between the second mounting plate 33 and the first mounting plate 32. Specifically, the three fixed shafts 332 are evenly distributed along the circumference of the second mounting plate 33, and each fixed shaft 332 is a cylindrical rod, and its two ends are fixed between the two second mounting plates 33 by welding or bolts; the bearing 333 is a ball bearing, and its inner ring is fixed to the fixed shaft 332, and the outer ring is in rolling contact with the inner wall of the first mounting plate 32 to reduce rotational friction.

[0040] In this embodiment, the driving assembly 4 includes a motor 41, a driving shaft 42 and two driving gears 43; the motor 41 is fixedly mounted on the upper surface of the base 1 by bolts, the driving shaft 42 is connected to the output end of the motor 41 by a coupling, a ring gear 322 is fixedly mounted between the two first mounting plates 32, the two driving gears 43 are fixedly connected to the driving shaft 42 by keyways, and the two driving gears 43 are respectively meshed and connected with the ring gears 322 of the two clamping mechanisms 3. Specifically, the motor 41 is a servo motor, the driving shaft 42 is a long strip shaft extending along the length direction of the base 1, and the ring gear 322 is a ring gear fixed between the two first mounting plates 32 by welding or bolts. The control motor 41 is started, and the output end of the motor 41 drives the driving shaft 42 to rotate. The driving shaft 42 drives the two driving gears 43 to rotate synchronously. The two driving gears 43 drive the two first mounting plates 32 to rotate by meshing with the ring gear 322, thereby driving the two clamping mechanisms 3; the power is transmitted to the two clamping mechanisms 3 at the same time through the driving shaft 42, which effectively improves the synchronization of the rotation of the two clamping mechanisms 3 and ensures the stability of the pipe clamping and rotation process.

[0041] In a second aspect of the present invention, a method for using a butt-jointing device for filling pipe welding is provided, comprising the following steps: In the first step, two sections of the filling pipe to be welded are placed on two supporting mechanisms 2 respectively, and the two sections of the pipe are pushed to approach each other along the direction of the base 1 and pass through the corresponding clamping mechanism 3 until the ends of the two sections of the pipe are in contact with each other to form a butt joint state; The second step is to start the driving assembly 4 to drive the two clamping mechanisms 3 to clamp the two pipe sections and keep them fixed to ensure that the grooves at the pipe joints are aligned; The third step is to choose manual welding or robot welding according to welding requirements: If robot welding is adopted, the welding gun of the welding robot is adjusted to the position of the pipe joint, the driving assembly 4 is started to drive the two clamping mechanisms 3 to rotate synchronously, and the clamping mechanisms 3 drive the two sections of the pipe to rotate around their axes at a constant speed for one circle, and the welding gun is kept in a fixed position to complete the continuous welding of the annular weld; If manual welding is adopted, the operator performs segmented welding at the joint of the pipeline. After welding each arc segment, the driving assembly 4 is started to drive the clamping mechanism 3 to rotate a preset angle, driving the pipeline to rotate to the next welding position, and repeating the welding and rotating steps until the pipeline rotates one circle to complete the entire annular weld; In the fourth step, after the welding is completed, the driving assembly 4 is stopped, the clamping mechanism 3 is released from clamping the pipe, the welded pipe is removed, and the weld is subjected to nondestructive testing to verify the welding quality.

[0042] By placing the pipeline on the supporting mechanism 2 and utilizing the synergistic effect of the clamping mechanism 3 and the driving assembly 4, precise docking, stable clamping and synchronous rotation of the pipeline are achieved, effectively improving the welding efficiency and consistency of weld quality; the method supports both manual welding and robotic welding modes. Robotic welding completes continuous ring welding through pipeline rotation, reducing the complexity of robot stroke adjustment, while manual welding avoids the safety hazard of operators working at heights through segmented rotation. Both modes shorten the construction period; at the same time, the clamping and rotation process is reasonably designed, which can reduce the damage of mechanical stress to the internal filler of the pipeline, and cooperate with non-destructive testing to further ensure the welding strength and sealing. It is suitable for filling pipelines with a diameter of 1 meter to 1.8 meters, taking into account safety, adaptability and practicality.

[0043] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A butt-jointing device for filling pipe welding, characterized in that: include: A base (1), two supporting mechanisms (2) and two clamping mechanisms (3); the two supporting mechanisms (2) and the two clamping mechanisms (3) are respectively arranged on the base (1), the two supporting mechanisms (2) are used to support the pipeline, and the two clamping mechanisms (3) are used to clamp the pipeline; and further comprising a driving component (4), the driving component (4) being connected to the two clamping mechanisms (3), the driving component (4) being used to drive the clamping mechanisms (3) to clamp the pipeline, and the driving component (4) being further used to drive the clamping mechanisms (3) to rotate, so as to indirectly drive the pipeline to rotate.

2. The butt-jointing device for filling pipe welding according to claim 1, characterized in that: The support mechanism (2) comprises a lifting assembly (21), a support plate (22) and a support assembly (23); the lifting assembly (21) is mounted on the upper surface of the base (1); the cross section of the support plate (22) is V-shaped; the number of the support assemblies (23) is at least two; and the support assemblies (23) are arranged on the support plate (22).

3. The butt-jointing device for filling pipe welding according to claim 2, characterized in that: The lifting assembly (21) comprises a base plate (211), two first support rods (212), two second support rods (213), a cylinder (214), two first mounting members (215) and two second mounting members (216); the base plate (211) is fixedly mounted on the upper surface of the base (1), the two first mounting members (215) are fixedly mounted on the upper surface of the base plate (211), the two second mounting members (216) are fixedly mounted on the support plate (22), the two first support rods (212) are slidably connected to the first sliding grooves (2151) of the first mounting members (215), and the two first support rods (212) are away from the first mounting members. One end of the second support rod (215) is slidably connected to the second slide groove (2161) of the second mounting member (216), the two second support rods (213) are rotationally connected to the base plate (211), one end of the two second support rods (213) away from the base plate (211) is rotationally connected to the support plate (22), the first support rod (212) and the second support rod (213) intersect each other, and the intersection is rotationally connected through a rotating shaft, the cylinder (214) is rotationally mounted on the base plate (211), the output end of the cylinder (214) is connected to a crossbeam (217), and the crossbeam (217) is fixedly connected to the two second support rods (213).

4. The butt-jointing device for filling pipe welding according to claim 2, characterized in that: The support assembly (23) comprises a support seat (231) and a ball (232); the support seat (231) is fixedly connected to the support plate (22); and the ball (232) is rollingly installed in the support seat (231).

5. The butt-jointing device for filling pipe welding according to claim 1, characterized in that: The clamping mechanism (3) comprises a support frame (31), two first mounting plates (32), two second mounting plates (33), a first locking assembly (34), three clamping claws (35) and a second locking assembly (36); the two first mounting plates (32) are connected to each other, and a mounting space is formed between the two first mounting plates (32); the three clamping claws (35) are rotatably mounted between the two first mounting plates (32); a lever (351) is provided on the two clamping claws (35); the two first mounting plates (32) are provided with a first arc groove (321); the lever (351) passes through the first arc groove (321) and is slidably connected to the first arc groove (321); Two second mounting plates (33) are rotatably connected to the support frame (31), and two second locking assemblies (36) are connected to the support frame (31). The second locking assemblies (36) are used to lock the second mounting plates (33). An installation space for installing the second locking assemblies (36) is formed between the first mounting plate (32) and the second mounting plate (33). The second locking assemblies (36) are installed between the first mounting plate (32) and the second mounting plate (33). A second arc groove (331) is provided on the second mounting plate (33), and the shifting rod (351) passes through the second arc groove (331) and is slidably connected to the second arc groove (331).

6. The butt-jointing device for filling pipe welding according to claim 5, characterized in that: The first locking assembly (34) comprises a transmission ring (341), three ratchet pawls (342), three ratchet wheels (343), three connecting rods (344), a transmission gear (345), a rack (346) and a first electric push rod (347); the transmission ring (341) is rotatably connected to the first mounting plate (32); the clamping claw (35) is connected to the first mounting plate (32) via a connecting shaft (352); the connecting shaft (352) passes through the first mounting plate (32) and is connected to the ratchet wheel (343); the three connecting rods (344) are rotatably connected to the transmission ring (341); one end of two connecting rods (344) away from the transmission ring (341) is connected to the first mounting plate (32); The first electric push rod (347) is connected to the first mounting disk (32), the first electric push rod (347) is mounted on the first mounting disk (32), the output end of the first electric push rod (347) is fixedly connected to the rack (346), the transmission gear (345) is rotationally connected to the first mounting disk (32), the rack (346) is meshed with the transmission gear (345), and the inner wall of the transmission ring (341) is provided with a latching tooth meshed with the transmission gear (345).

7. The butt-jointing device for filling pipe welding according to claim 5, characterized in that: The second locking assembly (36) comprises a second electric push rod (361) and a locking block (362); the locking block (362) is rotatably connected to the support frame (31); the second electric push rod (361) is rotatably connected to the support frame (31); and the output end of the second electric push rod (361) is rotatably connected to the locking block (362).

8. The butt-jointing device for filling pipe welding according to claim 5, characterized in that: Three fixed shafts (332) are fixedly mounted between the two second mounting plates (33), bearings (333) are provided on the three fixed shafts (332), and the inner wall of the first mounting plate (32) is in contact with the bearings (333).

9. The butt-jointing device for filling pipe welding according to claim 5, characterized in that: The driving assembly (4) comprises a motor (41), a driving shaft (42) and two driving gears (43); the motor (41) is fixedly mounted on the upper surface of the base (1); the driving shaft (42) is connected to the output end of the motor (41); a gear ring (322) is fixedly mounted between the two first mounting plates (32); the two driving gears (43) are fixedly connected to the driving shaft (42); and the two driving gears (43) are respectively meshed with the gear rings (322) of the two clamping mechanisms (3).

10. A method for using a butt-jointing device for filling pipe welding, characterized in that: The implementation of the method relies on the butt-jointing device for filling pipe welding according to any one of claims 1 to 9, and comprises the following steps: The first step is to place two sections of the filling pipe to be welded on two supporting mechanisms (2) respectively, and make the two sections of the pipe approach each other along the direction of the base (1), and pass through the corresponding clamping mechanism (3) until the ends of the two sections of the pipe contact each other to form a butt joint state; The second step is to start the driving assembly (4) to drive the two clamping mechanisms (3) to move, so that the clamping mechanisms (3) clamp the two pipe sections and keep them fixed, ensuring that the grooves at the joint of the pipes are aligned; The third step is to choose manual welding or robot welding according to welding requirements: If robot welding is adopted, the welding gun of the welding robot is adjusted to the position of the pipe joint, the driving assembly (4) is started to drive the two clamping mechanisms (3) to rotate synchronously, and the clamping mechanisms (3) drive the two sections of the pipe to rotate around their axes at a constant speed for one circle, and the welding gun remains in a fixed position, thereby completing the continuous welding of the annular weld; If manual welding is adopted, the operator performs segmented welding at the joint of the pipeline. After welding each arc segment, the driving assembly (4) is started to drive the clamping mechanism (3) to rotate a preset angle, driving the pipeline to rotate to the next welding position, and the welding and rotating steps are repeated until the pipeline rotates one circle to complete the entire annular weld. In the fourth step, after the welding is completed, the driving assembly (4) is stopped, the clamping mechanism (3) is released from clamping the pipe, and the welded pipe is removed.

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