Double-wall steel cofferdam welding rolling platform

Abstract

The invention discloses a double-wall steel cofferdam welding rolling platform, and relates to the technical field of welding rolling platforms, the double-wall steel cofferdam welding rolling platform comprises a rack, conveying rollers are arranged on the rack, the conveying rollers are used for discharging welded pipe fittings, mounting assemblies are arranged on the two sides of the top of the rack, and the mounting assemblies are used for controlling movement of the pipe fittings; a fixing frame is arranged between the two mounting assemblies, and a welding assembly used for conducting welding treatment on the pipe fitting is arranged on the inner side of the fixing frame. According to the double-wall steel cofferdam welding rolling platform, dirt, oxide layers and other impurities on the surfaces of pipe fittings can be removed through knocking vibration, welding joints are cleaner, the welding quality can be improved, bubbles and slag inclusion in welding seams can be eliminated through the vibration effect of the knocking rods, welding defects are reduced, and therefore the welding quality is improved; and the vibration effect of the knocking rod can accelerate heat transfer on the surface of the pipe fitting, so that the pipe fitting can reach the required preheating temperature more easily before being welded, the preheating time can be shortened, and the welding efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of welding rolling platforms, in particular to a double-wall steel cofferdam welding rolling platform. Background Art

[0002] At present, the welding work of double-wall steel cofferdam pipe fittings is mostly carried out on a rolling platform. This rolling platform usually includes a horizontal work surface and a drive system. The drive system can drive the double-wall steel cofferdam pipe fittings on the work surface to move so that welders can weld the pipe fittings. During the welding process, welders usually use manual welding guns or automated welding equipment to operate;

[0003] However, the existing double-wall steel cofferdam welding rolling platform still has some shortcomings in terms of welding efficiency and welding quality. Specifically, the existing technology has the following main problems:

[0004] Insufficient pretreatment before welding: Before welding, the pretreatment of the pipe surface often relies on manual grinding or simple mechanical cleaning. This method is not only inefficient, but also difficult to ensure the cleaning effect. If the dirt, oxide layer and other impurities on the surface of the pipe are not completely removed, it will seriously affect the quality and strength of the welded joint;

[0005] Lack of effective vibration cleaning during welding: During the welding process, there may be tiny impurities such as oil and dust on the surface of the pipe, as well as bubbles and slag included during welding, which will increase the risk of welding defects. The existing technology lacks an effective vibration cleaning mechanism that can clean and vibrate the surface of the pipe in real time during the welding process to reduce welding defects. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a double-walled steel cofferdam welding rolling platform, which solves the technical problems mentioned in the background technology.

[0007] To achieve the above purpose, the present invention is implemented by the following technical solutions: a double-wall steel cofferdam welding rolling platform, including a frame, a conveying roller is arranged on the frame, the conveying roller is used to discharge the welded pipe fittings, mounting components are arranged on both sides of the top of the frame, the mounting components are used to control the movement of the pipe fittings, a fixing frame is arranged between the two mounting components, and a welding component for welding the pipe fittings is arranged inside the fixing frame;

[0008] The welding assembly includes fixing rings fixedly installed on both sides of the inner cavity of the fixing frame, the opposite ends of the two fixing rings are fixedly connected with outer rings, and the inner ends of the outer rings are fixedly connected with gear rings, a rectangular block is arranged between the two outer rings, a welding gun is arranged on the inner end of the rectangular block through a control cylinder, and the welding distance between the welding gun and the pipe fitting is adjusted by controlling the cylinder, a dual-axis motor is fixedly connected inside the rectangular block, both ends of the dual-axis motor are fixedly connected with driving shafts, and the other end of the driving shaft is fixedly connected with an active gear meshing with the gear ring.

[0009] As a further preferred embodiment of the present technical solution, sliding grooves are provided at opposite ends of the two outer rings, and inner sliding blocks slidably installed in the sliding grooves are fixedly connected to both ends of the rectangular block.

[0010] As a further preferred embodiment of the present technical solution, a half gear is fixedly connected to the outer wall of the driving shaft, a tooth frame slidably mounted on a rectangular block is provided on the outer side of the half gear, and the half gear is meshingly connected to the tooth frame, and knocking rods for knocking the pipe fittings are fixedly connected on both sides of the bottom of the tooth frame.

[0011] As a further preferred embodiment of the present technical solution, a connecting frame is fixedly connected to the bottom end of the rectangular block, cleaning blocks are slidably connected to both sides of the bottom of the connecting frame, a guide rod is fixedly connected to one end of the cleaning block, and a first damping spring is arranged between the cleaning block and the connecting frame.

[0012] As a further preferred embodiment of the present technical solution, the inner end of the fixed ring is fixedly connected to the inner ring through a support rod, and reciprocating grooves are provided at opposite ends of the two inner rings, and one end of the guide rod is slidably connected in the reciprocating groove.

[0013] As a further preferred embodiment of the present technical solution, a cylinder is fixedly installed on the upper and lower ends of the fixed frame, the output end of the cylinder is fixedly connected to a U-shaped frame, both ends of the U-shaped frame are fixedly connected to a lifting block, a sliding rod is slidably connected to the lifting block, and the sliding rod is fixedly installed on the fixed frame, a second damping spring mounted on the sliding rod is provided at the bottom of the lifting block, the inner end of the lifting block is rotatably connected to a pushing rod, and the other end of the pushing rod is rotatably connected to a clamping block.

[0014] As a further preferred embodiment of the present technical solution, telescopic rods are provided at both ends of the outer side of the clamping block, the other end of the telescopic rod is slidably connected to a guide block, and the guide block is fixedly mounted on the inner wall of the fixing ring, and a third damping spring is sleeved on the telescopic rod.

[0015] As a further preferred embodiment of the present technical solution, the mounting assembly includes a support frame fixedly mounted on the frame, with a rotating shaft rotatably connected on both sides of the support frame, a plurality of connecting rods are arranged on both sides of the rotating shaft, and the plurality of connecting rods are arranged in a circular array, a guide wheel is arranged at the other end of the connecting rod, and the distance between adjacent guide wheels is adapted to the diameter of the pipe fitting.

[0016] Compared with the prior art, it has the following beneficial effects:

[0017] The welding gun can be used to perform circular welding on pipe fittings, realizing the automation of the welding process. This automated operation reduces manual intervention and significantly improves welding efficiency. The welding gun rotates in a circular motion driven by a dual-axis motor, which can achieve comprehensive and uniform welding of pipe fittings. This circular welding method not only improves the welding strength, but also makes the weld more beautiful and improves the welding quality.

[0018] When the driving shaft is driven to rotate by the dual-axis motor, the driving shaft can drive the half gear to rotate synchronously. In this way, the half gear can drive the tooth frame to move up and down on the rectangular block during the rotation. This up and down movement will cause the rectangular block to drive the knocking rod to move up and down, so that the knocking rod can knock on the pipe fitting. This knocking treatment method can effectively knock and vibrate the surface of the pipe fitting to be welded. Through knocking and vibration, impurities such as dirt and oxide layer on the surface of the pipe fitting can be removed, making the welded joint cleaner, which helps to improve the welding quality and make the welded joint more firm and beautiful. During the welding process, the knocking rod The vibration effect can eliminate bubbles and slag inclusions in the weld, reduce welding defects, and thus improve welding quality. In addition, the vibration effect of the tapping rod can also accelerate the heat transfer on the surface of the pipe fittings, making it easier for the pipe fittings to reach the required preheating temperature before welding, which can reduce the preheating time and improve welding efficiency. The vibration effect of the tapping rod can also accelerate the cooling rate of the weld, making the welding process faster, thereby further improving welding efficiency. Finally, the vibration effect of the tapping rod can also reduce the friction and wear between the pipe fittings and the welding gun during the welding process, which can not only extend the service life of equipment and tools, but also improve the stability and reliability of the welding process.

[0019] By making a lateral reciprocating movement of the cleaning block, such a design enables one cleaning block to frictionally clean the surface of the pipe fitting to be welded, while the other cleaning block frictionally cleans the welding part of the pipe fitting. After friction cleaning by the cleaning block, impurities such as oil, dust, oxide layer on the surface of the pipe fitting to be welded can be effectively removed, thereby improving the cleanliness of the surface and providing a good contact surface for welding. Friction cleaning of the welding part of the pipe fitting can further remove impurities in the welding area, making the weld smoother, helping to reduce welding defects and improve welding quality. The friction cleaning effect of the cleaning block can reduce defects such as weld discontinuity, pores, slag inclusions, etc. caused by impurities during welding, thereby improving the strength and appearance of the weld. Since the cleaning block cleans the pipe fitting at the same time before and during welding, additional cleaning steps are reduced, thereby improving welding efficiency.

[0020] The pipe fittings will be clamped by the clamping block. The design of the clamping block can ensure that the pipe fittings are stably clamped during the welding process, thereby preventing welding defects caused by movement or shaking of the pipe fittings. In addition, when the push rod pushes the clamping block inward, it will provide a force to push the pipe fitting inward. This thrust can ensure that the two pipe fittings to be welded are accurately docked, thereby reducing the welding error caused by the position deviation of the pipe fittings. Accurate docking can reduce defects such as porosity and slag inclusions in the weld, thereby improving the quality and strength of the weld. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the installation components in the present invention;

[0023] Figure 3 It is a structural schematic diagram of the fixing frame and the welding assembly in the present invention;

[0024] Figure 4 It is a partial structural schematic diagram of the fixing ring, the outer ring, the guide block and the inner ring in the present invention;

[0025] Figure 5 It is a schematic cross-sectional view of the structure of the inner ring in the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of the rectangular block, welding gun, connecting frame, cleaning block and guide rod in the present invention;

[0027] Figure 7 It is a schematic diagram of the structure of the dual-axis motor, the driving shaft, the driving gear, the half gear, the gear frame, and the knocking rod in the present invention;

[0028] Figure 8 It is a schematic diagram of the structure of the fixed frame, U-shaped frame, lifting block, pushing rod and clamping block in the present invention.

[0029] In the figure: 1, frame; 2, mounting assembly; 3, fixed frame; 4, welding assembly; 11, conveying roller; 21, support frame; 22, rotating shaft; 23, connecting rod; 24, guide wheel; 41, fixing ring; 42, outer ring; 43, rectangular block; 44, welding gun; 45, slide; 46, slider; 47, gear ring; 48, dual-axis motor; 49, driving shaft; 410, driving gear; 411, connecting frame; 412, Cleaning block; 413, guide rod; 414, first damping spring; 415, inner ring; 416, half gear; 417, gear frame; 418, knocking rod; 419, cylinder; 420, U-shaped frame; 421, lifting block; 422, sliding rod; 423, second damping spring; 424, pushing rod; 425, clamping block; 426, telescopic rod; 427, guide block; 428, third damping spring; 429, reciprocating groove. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings of the specification. Obviously, the described embodiments are only 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 making creative work are within the scope of protection of the present invention.

[0031] Embodiment 1: Combination Figure 1-Figure 8 As shown, the present invention provides a technical solution: a double-wall steel cofferdam welding rolling platform, comprising a frame 1, a conveying roller 11 is arranged on the frame 1, the conveying roller 11 is used to discharge the welded pipe fittings, mounting components 2 are arranged on both sides of the top of the frame 1, the mounting components 2 are used to control the movement of the pipe fittings, a fixing frame 3 is arranged between the two mounting components 2, and a welding component 4 for welding the pipe fittings is arranged inside the fixing frame 3;

[0032] The welding assembly 4 includes a fixing ring 41 fixedly mounted on both sides of the inner cavity of the fixing frame 3, the opposite ends of the two fixing rings 41 are fixedly connected with an outer ring 42, and the inner ends of the outer rings 42 are fixedly connected with a gear ring 47, a rectangular block 43 is arranged between the two outer rings 42, and a welding gun 44 is arranged at the inner end of the rectangular block 43 through a control cylinder, and the welding distance between the welding gun 44 and the pipe fitting is adjusted by the control cylinder to ensure the accuracy of the welding process;

[0033] A double-axis motor 48 is fixedly connected inside the rectangular block 43, and driving shafts 49 are fixedly connected at both ends of the double-axis motor 48. A driving gear 410 meshing with the ring gear 47 is fixedly connected at the other end of the driving shaft 49. The driving shafts 49 and the driving gears 410 on both sides are driven to rotate synchronously by turning on the double-axis motor 48. Due to the meshing relationship between the driving gear 410 and the ring gear 47, the rectangular block 43 is located on the fixed ring 41 and performs a circular rotation, thereby driving the welding gun 44 to perform a circular rotation.

[0034] Through this design, the welding gun 44 can perform circumferential welding on the pipe fittings, realizing the automation of the welding process. This automated operation reduces manual intervention and significantly improves welding efficiency. The welding gun 44 rotates in a circle under the drive of the dual-axis motor 48, which can achieve comprehensive and uniform welding of the pipe fittings. This circumferential welding method not only improves the welding strength, but also makes the weld more beautiful and improves the welding quality.

[0035] In order to further ensure the stability of the welding process, the two outer rings 42 are provided with slide grooves 45 at the opposite ends, and the two ends of the rectangular block 43 are fixedly connected with inner sliders 46 slidably installed in the slide grooves 45. When the rectangular block 43 rotates in a circle, the slider 46 can slide in the slide groove 45. The slide grooves 45 and the slider 46 make the rectangular block 43 more stable when rotating in a circle, avoiding welding defects caused by vibration or uneven movement, thereby ensuring the reliability of welding quality.

[0036] On the outer wall of the driving shaft 49, a half gear 416 is fixedly connected. A tooth frame 417 is arranged on the outer side of the half gear 416. The tooth frame 417 can be slidably mounted on the rectangular block 43. The half gear 416 and the tooth frame 417 are meshingly connected. On both sides of the bottom of the tooth frame 417, knocking rods 418 for knocking the pipe fittings are fixedly connected. When the dual-axis motor 48 drives the driving shaft 49 to rotate, the driving shaft 49 can drive the half gear 416 to rotate synchronously. In this way, the half gear 416 can drive the tooth frame 417 to move up and down on the rectangular block 43 during the rotation. This up and down movement will cause the rectangular block 43 to drive the knocking rod 418 to move up and down, so that the knocking rod 418 knocks the pipe fittings. This knocking treatment method can effectively knock and vibrate the surface of the pipe fitting to be welded. Through knocking and vibration, Dirt, oxide layer and other impurities on the surface of the pipe fitting can be removed to make the weld joint cleaner, which helps to improve the welding quality and make the weld joint more firm and beautiful. During the welding process, the vibration of the tapping rod 418 can eliminate bubbles and slag inclusions in the weld, reduce welding defects, and thus improve the welding quality. In addition, the vibration of the tapping rod 418 can also accelerate the heat transfer on the surface of the pipe fitting, making it easier for the pipe fitting to reach the required preheating temperature before welding, which can reduce the preheating time and improve the welding efficiency. The vibration of the tapping rod 418 can also accelerate the cooling speed of the weld, making the welding process faster, thereby further improving the welding efficiency. Finally, the vibration of the tapping rod 418 can also reduce the friction and wear between the pipe fitting and the welding gun 44 during the welding process, which can not only extend the service life of the equipment and tools, but also improve the stability and reliability of the welding process.

[0037] At the bottom end of the rectangular block 43, there is a connecting frame 411 fixedly connected, and the two sides of the bottom of the connecting frame 411 are slidably connected to the cleaning block 412, and one end of the cleaning block 412 is fixedly connected to the guide rod 413. At the same time, a first damping spring 414 is arranged between the cleaning block 412 and the connecting frame 411. At the inner end of the fixed ring 41, an inner ring 415 is fixedly connected through a support rod. The opposite ends of the two inner rings 415 are provided with a reciprocating groove 429. One end of the guide rod 413 is located in the reciprocating groove 429 and can be slidably connected. When the rectangular block 43 rotates in a circle, it can drive the connecting frame 411, the cleaning block 412, and the guide rod 413 to rotate in a synchronous circle. Since one end of the guide rod 413 is slidably installed in the reciprocating groove 429, this makes it possible for the guide rod 413 to rotate in a circle under the action of the reciprocating groove 429 and cooperate with the elastic force of the first damping spring 414. It can drive the guide rod 413 and the cleaning block 412 to move back and forth horizontally. This design enables one cleaning block 412 to perform friction cleaning on the surface of the pipe to be welded, while the other cleaning block 412 performs friction cleaning on the welding part of the pipe. After the friction cleaning of the cleaning block 412, impurities such as oil, dust, and oxide layer on the surface of the pipe to be welded can be effectively removed, thereby improving the cleanliness of the surface and providing a good contact surface for welding. Friction cleaning of the welding part of the pipe can further remove impurities in the welding area, making the weld smoother, helping to reduce welding defects and improve welding quality. The friction cleaning effect of the cleaning block 412 can reduce defects such as weld discontinuity, pores, slag inclusions, etc. caused by impurities during welding, thereby improving the strength and aesthetics of the weld. Since the cleaning block 412 cleans the pipe at the same time before and during welding, additional cleaning steps are reduced, thereby improving welding efficiency.

[0038] Cylinders 419 are installed at the upper and lower ends of the fixed frame 3, and the output end of the cylinder 419 is fixedly connected to a U-shaped frame 420. The two ends of the U-shaped frame 420 are respectively fixedly connected to lifting blocks 421. The lifting block 421 is slidably connected to a sliding rod 422, and the sliding rod 422 is fixedly installed on the fixed frame 3. At the bottom of the lifting block 421, a second damping spring 423 sleeved on the sliding rod 422 is provided. The inner end of the lifting block 421 is rotatably connected to a pushing rod 424, and the other end of the pushing rod 424 is rotatably connected to a clamping block 425. Telescopic rods 426 are provided at both ends of the outer sides of the clamping block 425. The other end of the telescopic rod 426 is slidably connected to a guide block 427, and the guide block 427 is fixedly installed on the inner wall of the fixed ring 41. At the same time, a third damping spring 428 is sleeved on the telescopic rod 426. By opening the cylinder 419, the U-shaped frame 420 can be driven. And the lifting block 421 moves inward, so that the lifting block 421 will slide on the inner side of the sliding rod 422 and compress the second damping spring 423. As the lifting block 421 moves, the pushing rod 424 will also move accordingly, thereby pushing the clamping block 425 to move inward. Under the elastic force of the third damping spring 428, the clamping block 425 will clamp the pipe fitting. The design of the clamping block 425 can ensure that the pipe fitting is stably clamped during the welding process, thereby preventing welding defects caused by movement or shaking of the pipe fitting. In addition, when the pushing rod 424 pushes the clamping block 425 to move inward, it will provide a force to push the pipe fitting inward. This thrust can ensure that the two pipe fittings to be welded are accurately docked, thereby reducing the welding error caused by the position deviation of the pipe fittings. Accurate docking can reduce defects such as pores and slag inclusions in the weld, thereby improving the quality and strength of the weld.

[0039] In the embodiment of the present invention, by starting the cylinder 419, the U-shaped frame 420 and the lifting block 421 can be driven to move inward. In this process, the lifting block 421 will slide inward on the sliding rod 422 and compress the second damping spring 423. As the lifting block 421 moves, it will drive the push rod 424, and then push the clamping block 425 to move inward. The design of the clamping block 425 is very clever, which can ensure that the pipe fittings are stably clamped during the welding process, thereby preventing welding defects caused by the movement or shaking of the pipe fittings. At the same time, when the push rod 424 pushes the clamping block 425 to move inward, it will provide a force to push the pipe fittings inward. This thrust can ensure that the two pipe fittings to be welded are accurately butted;

[0040] In addition, by starting the dual-axis motor 48, the driving shafts 49 and the driving gears 410 on both sides can be driven to rotate synchronously. Due to the meshing relationship between the driving gear 410 and the gear ring 47, the rectangular block 43 can rotate in a circle on the fixed ring 41. Under the drive of the dual-axis motor 48, the driving shaft 49 can drive the half gear 416 to rotate synchronously, so that the half gear 416 drives the gear frame 417 to move up and down on the rectangular block 43 during rotation. In this way, the rectangular block 43 can drive the knocking rod 418 to move up and down to knock the pipe fittings. This knocking and vibration cleaning can effectively clean the surface of the pipe fittings to be welded, and can also knock and vibrate the pipe fittings during the welding process.

[0041] At the same time, when the rectangular block 43 performs circular rotation, it can drive the connecting frame 411, the cleaning block 412 and the guide rod 413 to perform synchronous circular rotation. Since one end of the guide rod 413 is slidably installed in the reciprocating groove 429, when the rectangular block 43 performs circular rotation, it will drive the guide rod 413 and the cleaning block 412 to perform horizontal reciprocating movement under the action of the reciprocating groove 429 and the elastic force of the first damping spring 414. In this way, one cleaning block 412 can perform friction cleaning on the surface of the pipe to be welded, while the other cleaning block 412 can perform friction cleaning on the welding part of the pipe.

[0042] Finally, during the circular rotation of the rectangular block 43 , the welding gun 44 can also be driven to rotate in a circular manner. Thus, the welding gun 44 can perform a circular welding process on the pipe fitting, thereby ensuring the quality and efficiency of the welding.

[0043] Embodiment 2: Combination Figure 2 As shown, on the basis of embodiment one, the mounting assembly 2 includes a support frame 21 fixedly mounted on the frame 1, and the two sides of the support frame 21 are rotatably connected with a rotating shaft 22, and a plurality of connecting rods 23 are arranged on both sides of the rotating shaft 22, and the plurality of connecting rods 23 are arranged in a circular array, and a guide wheel 24 is arranged at the other end of the connecting rod 23, and the distance between adjacent guide wheels 24 is adapted to the diameter of the pipe fitting.

[0044] In an embodiment of the present invention, a servo motor can be provided at one end of the rotating shaft 22 according to the situation. The servo motor is used to drive the rotating shaft 22, the connecting rod 23, and the guide wheel 24 to rotate. By placing the pipe fitting in the support frame 21, the pipe fitting is in contact with the outer wall of the guide wheel 24, and then the servo motor drives the rotating shaft 22, the connecting rod 23, and the guide wheel 24 to rotate inward, so that the pipe fitting moves downward under the action of gravity as the guide wheel 24 rotates. When the pipe fitting moves to the conveying roller 11, the servo motor is turned off. After the welding of the pipe fitting is completed by the welding assembly 4, the welded pipe fitting is discharged by the conveying roller 11, and then the servo motor is turned on to drive the next pipe fitting to move downward. This reciprocating process allows the welding assembly 4 to weld the pipe fittings in sequence. The servo motor drives the rotating shaft 22, the connecting rod 23 and the guide wheel 24 to realize the automatic feeding process of the pipe fitting, which greatly reduces the need for manual feeding and improves production efficiency. At the same time, the automated operation also reduces the errors caused by human factors and improves the stability and consistency of the production line.

[0045] Working principle of double wall steel cofferdam welded rolling platform:

[0046] Step 1: Put the pipes to be welded into the support frame 21 in sequence, and use the servo motor to drive the rotating shaft 22, the connecting rod 23, and the guide wheel 24 to rotate inward, so that the pipe moves downward under the action of gravity as the guide wheel 24 rotates. When the pipe moves to the conveying roller 11, turn off the servo motor, and use the welding assembly 4 to weld the pipe. After that, use the conveying roller 11 to discharge the welded pipe, and then turn on the servo motor to drive the next pipe to move downward. Repeat this process so that the welding assembly 4 welds the pipes in sequence.

[0047] Step 2: Open the cylinder 419 to drive the U-shaped frame 420 and the lifting block 421 to move inward, so that the lifting block 421 slides on the inner side of the slide bar 422 and compresses the second damping spring 423, so that the lifting block 421 drives the push rod 424 to move, so that the push rod 424 pushes the clamping block 425 to move inward, and under the elastic force of the third damping spring 428, the clamping block 425 clamps the pipe fitting. The design of the clamping block 425 can ensure that the pipe fitting is stably clamped during the welding process to prevent welding defects caused by the movement or shaking of the pipe fitting, and the push rod 424 pushes the clamping block 425 to move inward, providing a force to push the pipe fitting inward. When the push rod 424 pushes the clamping block 425 to move inward, the thrust provided can ensure that the two pipe fittings to be welded are accurately butted together;

[0048] Step 3: Turn on the dual-axis motor 48 to drive the driving shafts 49 and the driving gear 410 on both sides to rotate synchronously. Due to the meshing relationship between the driving gear 410 and the gear ring 47, the rectangular block 43 is located on the fixed ring 41 and rotates in a circle. When the dual-axis motor 48 drives the driving shaft 49 to rotate, the driving shaft 49 can drive the half gear 416 to rotate synchronously, so that the half gear 416 drives the gear frame 417 located on the rectangular block 43 to move up and down during rotation, so that the rectangular block 43 drives the knocking rod 418 to move up and down, so that the knocking rod 418 knocks the pipe fittings, so that the surface of the pipe fittings to be welded can be knocked and vibrated to clean. , and can also knock and vibrate to clean the pipe fittings during welding, and when the rectangular block 43 rotates in a circle, it can drive the connecting frame 411, the cleaning block 412, and the guide rod 413 to rotate in a synchronous circle. Since one end of the guide rod 413 is slidably installed in the reciprocating groove 429, when the guide rod 413 rotates in a circle, under the action of the reciprocating groove 429, the elastic force of the first damping spring 414 can drive the guide rod 413 and the cleaning block 412 to reciprocate laterally, so that one cleaning block 412 performs friction cleaning on the surface of the pipe fitting to be welded, and the other cleaning block 412 performs friction cleaning on the welding part of the pipe fitting;

[0049] Step 4: When the rectangular block 43 rotates in a circle, it can drive the welding gun 44 to rotate in a circle, so that the welding gun 44 can perform a circular welding process on the pipe fitting.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-wall steel cofferdam welding rolling platform, comprising a frame (1), characterized in that: A conveying roller (11) is arranged on the frame (1), and the conveying roller (11) is used to discharge the welded pipe fittings. Mounting components (2) are arranged on both sides of the top of the frame (1), and the mounting components (2) are used to control the movement of the pipe fittings. A fixing frame (3) is arranged between the two mounting components (2), and a welding component (4) for welding the pipe fittings is arranged inside the fixing frame (3); The welding assembly (4) comprises fixing rings (41) fixedly mounted on both sides of the inner cavity of the fixing frame (3); the opposite ends of the two fixing rings (41) are fixedly connected to outer circular rings (42), and the inner ends of the outer circular rings (42) are fixedly connected to gear rings (47); a rectangular block (43) is arranged between the two outer circular rings (42); a welding gun (44) is arranged at the inner end of the rectangular block (43) through a control cylinder; the welding distance between the welding gun (44) and the pipe fitting is adjusted through the control cylinder; a dual-axis motor (48) is fixedly connected inside the rectangular block (43); two ends of the dual-axis motor (48) are fixedly connected to driving shafts (49); and the other end of the driving shaft (49) is fixedly connected to a driving gear (410) meshing with the gear ring (47).

2. A double-walled steel cofferdam welding rolling platform according to claim 1, characterized in that: The two outer rings (42) are provided with sliding grooves (45) at opposite ends, and the two ends of the rectangular block (43) are fixedly connected with inner sliding blocks (46) slidably mounted in the sliding grooves (45).

3. A double-walled steel cofferdam welding rolling platform according to claim 2, characterized in that: A half gear (416) is fixedly connected to the outer wall of the driving shaft (49), a tooth frame (417) slidably mounted on the rectangular block (43) is arranged outside the half gear (416), and the half gear (416) is meshedly connected to the tooth frame (417), and knocking rods (418) for knocking the pipe fitting are fixedly connected to both sides of the bottom of the tooth frame (417).

4. A double-walled steel cofferdam welding rolling platform according to claim 3, characterized in that: The bottom end of the rectangular block (43) is fixedly connected to a connecting frame (411), both sides of the bottom of the connecting frame (411) are slidably connected to cleaning blocks (412), one end of the cleaning block (412) is fixedly connected to a guide rod (413), and a first damping spring (414) is provided between the cleaning block (412) and the connecting frame (411).

5. A double-walled steel cofferdam welding rolling platform according to claim 4, characterized in that: The inner end of the fixed ring (41) is fixedly connected to the inner ring (415) via a support rod, and reciprocating grooves (429) are provided at opposite ends of the two inner rings (415). One end of the guide rod (413) is slidably connected in the reciprocating groove (429).

6. A double-walled steel cofferdam welding rolling platform according to claim 5, characterized in that: The fixed frame (3) is fixedly mounted with a cylinder (419) at the upper and lower ends, the output end of the cylinder (419) is fixedly connected with a U-shaped frame (420), both ends of the U-shaped frame (420) are fixedly connected with a lifting block (421), a sliding rod (422) is slidably connected to the lifting block (421), and the sliding rod (422) is fixedly mounted on the fixed frame (3), a second damping spring (423) sleeved on the sliding rod (422) is arranged at the bottom of the lifting block (421), the inner side end of the lifting block (421) is rotatably connected with a push rod (424), and the other end of the push rod (424) is rotatably connected with a clamping block (425).

7. A double-walled steel cofferdam welding rolling platform according to claim 6, characterized in that: Telescopic rods (426) are arranged at both ends of the outer side of the clamping block (425), and the other end of the telescopic rod (426) is slidably connected to a guide block (427), and the guide block (427) is fixedly mounted on the inner wall of the fixing ring (41), and a third damping spring (428) is sleeved on the telescopic rod (426).

8. The double-walled steel cofferdam welding rolling platform according to claim 1, characterized in that: The mounting assembly (2) comprises a support frame (21) fixedly mounted on the frame (1); two sides of the support frame (21) are rotatably connected to a rotating shaft (22); a plurality of connecting rods (23) are arranged on both sides of the rotating shaft (22); the plurality of connecting rods (23) are arranged in a circular array; a guide wheel (24) is arranged at the other end of the connecting rod (23); and the distance between adjacent guide wheels (24) is adapted to the diameter of the pipe fitting.

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