Tank bulkhead welding machine

Abstract

The application discloses an oil tank partition plate welding machine, which comprises a base, a rack and a guide rail are fixed on the base, the rack and the guide rail are distributed in parallel, a welding gun mechanism and an oil tank clamping and overturning mechanism are sequentially and slidably connected on the guide rail from both ends to the middle, the oil tank clamping and overturning mechanism comprises a mounting seat which slides on the guide rail, a overturning assembly is fixed on the side of the mounting seat, a clamping assembly is fixed on the side of the overturning assembly, the clamping assembly is used for clamping the oil tank, the overturning assembly is used for rotating the clamping assembly to drive the oil tank to overturn, and the welding gun mechanism is used for moving the position of the welding gun and finely adjusting the welding gun, so that the welding gun is the same as the overturning path of the partition plate, the oil tank partition plate welding machine solves the problem that the existing oil tank partition plate welding equipment can only vertically clamp the oil tank and can only weld the partition plate on one side, and the efficiency is low, the oil tank is horizontally placed and clamped, and the welding guns on both sides are used for welding the partition plates which are overturned on both sides, and the welding efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, specifically to a fuel tank partition welding machine. Background Technology

[0002] During the production of fuel tank welding, the fuel tank needs to be flipped over so that the baffles can be welded to both ends of the fuel tank. In order to improve production quality and efficiency and prevent damage to the surface of the fuel tank caused by manual flipping, robotic arms are generally used to achieve automatic flipping of the fuel tank.

[0003] Furthermore, existing production equipment vertically clamps the oil tank and can only control the movement path of one welding torch to weld the partition on one side. After welding, the oil tank is flipped over to weld the partition on the other side, resulting in low production efficiency. Therefore, in order to improve production efficiency and weld the partitions on both sides of the oil tank at the same time, this horizontal oil tank partition welding machine was designed. Summary of the Invention

[0004] The purpose of this invention is to provide a fuel tank partition welding machine. The fuel tank is laid horizontally and clamped by a fuel tank clamping and flipping mechanism. At the same time, a welding torch is used to weld the partition. While the fuel tank is flipped, the position of the welding torch is finely adjusted so that the welding torch is always in contact with the partition path. The partition is welded to both ends of the fuel tank, completing the connection between the fuel tank and the partition. The partitions on both sides are welded simultaneously, resulting in high production efficiency.

[0005] This invention provides the following technical solution: a fuel tank partition welding machine, comprising a base, on which a rack and a guide rail are fixed, the rack and guide rail being parallel to each other. A welding torch mechanism and a fuel tank clamping and flipping mechanism are slidably connected sequentially from both ends to the middle on the guide rail. The fuel tank clamping and flipping mechanism includes a mounting seat that slides on the guide rail. A flipping component is fixed to the side of the mounting seat, and a clamping component is fixed to the side of the flipping component. The clamping component is used to clamp the fuel tank, and the flipping component is used to rotate the clamping component to flip the fuel tank. The welding torch mechanism is used to move the position of the welding torch and fine-tune the welding torch so that the flipping path of the welding torch and the partition are the same, thereby welding the partition inside the fuel tank.

[0006] To clamp the fuel tank, the flipping assembly includes a slewing bearing fixed to the side of the mounting base. The clamping assembly is mounted on the outer ring of the slewing bearing and includes symmetrically arranged support plates. A slide rail is fixed on the support plate, and a sliding plate is slidably connected to the slide rail. A push-pull clamp is also fixed on the support plate. The push-pull clamp is located on one side of the sliding plate and is used to hold the sliding plate and control its position. Claws are symmetrically installed at both ends of one side of the sliding plate.

[0007] To enable the grippers on both sides to move simultaneously and clamp the oil tank, symmetrically distributed connecting plates are fixed on both ends of the symmetrical sliding plates on both sides. A steering plate is also rotatably connected to the outer ring of the slewing bearing. The steering plate is located between the connecting plates on the same side of the two sliding plates. A first connecting rod is connected between one end of the connecting plate on one side and the steering plate, and a second connecting rod is connected between the connecting plate on the other side and the other end of the steering plate. The two ends of the first and second connecting rods are respectively hinged to the steering plate and the connecting plate. The rotation of the steering plate causes the first and second connecting rods to move in opposite directions.

[0008] In order to control the rotation of the slewing bearing, a servo motor is also fixed on the mounting base, and a gear is fixed on the servo motor, which meshes with the outer surface of the slewing bearing.

[0009] To enable the mounting base to move along the rack, a second moving motor is fixed to the side of the mounting base, and the output end of the second moving motor is connected to a gear, which meshes with the rack on the base.

[0010] In another embodiment of the movable mounting base, a cylinder is mounted on the base, and the telescopic end of the cylinder is connected to the side of the mounting base.

[0011] To control the clamping position of the clamping assembly on the oil tank, a limiting mechanism is fixed on the side of the mounting base. The limiting mechanism includes a limiting frame fixed to the side of the mounting base, a mounting block fixed inside the limiting frame, a linear screw connected to the mounting block via a bearing, the other end of the linear screw extending to the outside of the limiting frame and fixed with a circular handle, a linear slider threaded onto the linear screw, a movable plate fixed to the linear slider, a telescopic cylinder connected to the movable plate, a limiting seat fixed to the telescopic end of the telescopic cylinder, the limiting seat being used to abut against the end face of the oil tank, a guide rod fixed to the limiting frame, and the movable plate slidably connected to the guide rod.

[0012] To control the position of the welding torch and enable it to move along the X, Y, and Z axes, the welding torch mechanism includes a first module slidably connected to a guide rail. A first moving motor is fixed to the side of the first module, and a gear meshing with a rack is connected to the output end of the first moving motor. A second module is fixed to the slider of the first module, and a connecting seat is fixed to the slider of the second module. A third module is connected to the side of the connecting seat, and a fourth module is fixed to the slider of the third module. A mounting rod is fixed to the slider of the fourth module, and the welding torch is fixed to the mounting rod.

[0013] To reduce the weight borne by the second and third modules, a load-reducing cylinder is fixed on the side of each of the second and third modules. The two sets of load-reducing cylinders are respectively connected to the connecting seat and the fourth module.

[0014] To adjust the height of the fuel tank and facilitate its clamping, a fuel tank lifting mechanism is provided between the two fuel tank clamping and flipping mechanisms. The fuel tank lifting mechanism is fixed on the base and includes a bracket. A lifting cylinder is fixed on the top wall of the bracket. A lifting plate is connected to the lower end of the lifting cylinder. A fork mounting rod is connected to the side of the lifting plate. A fork is fixed on the fork mounting rod and is used to lift the fuel tank.

[0015] To limit the height of the fuel tank, a screw is threadedly connected to the middle of the top wall of the bracket, and a limit plate is threadedly connected to the screw. A guide rod is also fixed to the side of the bracket, and the limit plate is slidably connected to the guide rod. The limit plate is located above the lifting plate.

[0016] To control the position of the oil tank on the X-axis, a movable cylinder is fixed on the base. The output end of the movable cylinder is connected to a base plate. Sliding seats are fixed on both sides of the movable cylinder on the base. Sliding rails are slidably connected to the sliding seats. I-beam supports are fixed on the sliding rails. The base plate is installed on the upper end of the I-beam supports. Pads are fixed on the left and right ends of the base plate. The pads are located between the two fork mounting rods.

[0017] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0018] (1) By placing the oil tank on the base and clamping the middle of the oil tank with the clamping assembly, the welding gun can weld the partitions at both ends of the oil tank, which improves the welding efficiency. The welding gun is facing down and can only weld the bottom. The oil tank is flipped by the flipping assembly, and the position of the welding gun is finely adjusted by the welding gun mechanism so that the welding gun can weld the partition around the perimeter, thus completing the fixation of the partition and the oil tank.

[0019] (2) A support plate, slide rail, sliding plate, push-pull clamp and jaw are symmetrically distributed on the outer ring of the slewing bearing. At the same time, the symmetrically distributed jaws are connected by the steering plate and the first and second connecting rods at both ends of the steering plate. When the push-pull clamp is tightened, it will push the sliding plate to move, causing the jaws and the first connecting rod to move inward. Under the push of the first connecting rod, the steering plate will rotate, causing the second connecting rod to move inward as well, further causing the jaws on the other side to clamp the oil tank inward as well, so that the left and right jaws clamp the oil tank synchronously, and the rotation of the slewing bearing is used to flip the clamped oil tank.

[0020] (3) The third module, the fourth module and the welding gun are used together, and the laser tracker on the welding gun forms a laser tracking device to finely adjust the position of the welding gun so that the welding gun is always in contact with the perimeter of the partition. The laser tracking device is used to automatically compensate the welding gun and reduce welding errors.

[0021] (4) By setting a limiting mechanism, rotating the circular handle to adjust the distance between the limiting seat and the mounting seat, the distance between the clamping component and the end face of the oil tank is controlled. The movement of the mounting seat makes the limiting seat abut against the end of the oil tank, so that the clamping position of the clamping component can be adjusted according to different models of oil tanks, thereby improving the stability of clamping the oil tank. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is a perspective view of the overall structure of the present invention;

[0024] Figure 2 This is an overall front view of the present invention;

[0025] Figure 3 This is a front view of the fuel tank clamping and flipping mechanism of the present invention;

[0026] Figure 4 This is a perspective view of the fuel tank clamping and flipping mechanism of the present invention;

[0027] Figure 5 This is a perspective view of the fuel tank lifting mechanism of the present invention;

[0028] Figure 6 This is the invention Figure 2 A magnified view of a portion of region A in the middle;

[0029] Figure 7 This is a perspective view of the welding torch mechanism of the present invention;

[0030] Figure 8 This is a diagram showing the installation position of the limiting mechanism of the present invention;

[0031] Figure 9 This is a side view of the limiting mechanism of the present invention;

[0032] Figure 10 This is a top view of the limiting mechanism of the present invention;

[0033] In the diagram: 1. Base; 11. Rack; 12. Guide rail; 2. Welding torch mechanism; 21. First moving motor; 22. First module; 23. Second module; 231. Connecting seat; 232. Load-reducing cylinder; 24. Third module; 25. Fourth module; 26. Mounting rod; 27. Welding torch; 3. Oil tank clamping and tilting mechanism; 31. Mounting seat; 32. Slewing bearing; 33. Support plate; 34. Slide rail; 35. Sliding plate; 36. Push-pull clamp; 37. Gripper; 38. Connecting plate; 39. First connecting rod; 310. Steering plate; 311. Second connecting rod; 313. Servo motor; 314. 1. Second moving motor; 4. Oil tank; 41. Partition plate; 5. Oil tank lifting mechanism; 51. Bracket; 52. Lifting plate; 53. Lifting cylinder; 54. Fork mounting rod; 55. Fork; 56. Pad plate; 57. Base plate; 58. Screw; 59. Limiting plate; 510. I-beam support; 511. Sliding rail; 512. Sliding seat; 513. Guide rod; 514. Moving cylinder; 6. Limiting mechanism; 61. Limiting frame; 62. Guide rod; 63. Movable plate; 64. Telescopic cylinder; 65. Linear slider; 66. Limiting seat; 67. Circular handle; 68. Linear screw; 69. Mounting block. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0035] Please see Figure 1 and Figure 2This invention provides a technical solution: a fuel tank partition welding machine, including a base 1, on which a rack 11 and a guide rail 12 are fixed. The rack 11 and the guide rail 12 are parallel to each other. A welding torch mechanism 2 and a fuel tank clamping and flipping mechanism 3 are slidably connected from both ends to the middle on the guide rail 12. Both the welding torch mechanism 2 and the fuel tank clamping and flipping mechanism 3 move along the rack 11. The fuel tank clamping and flipping mechanism 3 clamps both ends of the fuel tank 4 and flips the fuel tank 4. The fuel tank clamping and flipping mechanism 3 includes a mounting seat 31 that slides on the guide rail 12. A flipping component is fixed on the side of the mounting seat 31, and a clamping component is fixed on the side of the flipping component. The clamping component is used to clamp the fuel tank 4, and the flipping component is used to rotate the clamping component to flip the fuel tank 4. The welding torch mechanism 2 is used to move the position of the welding torch 27 and fine-tune the welding torch 27 so that the welding torch 27 is always in contact with the connection between the partition 41 and the fuel tank 4. 3. Move from both sides of the base towards the middle, and clamp the oil tank 4 at both ends. Then move the welding gun mechanism 2 on both sides to move the welding gun 27 to the junction of the oil tank 4 and the partition 41 to weld the connection between the oil tank 4 and the partition 41. Then flip the oil tank 4 and fine-tune the position of the welding gun 27 so that the welding gun 27 welds around the partition 41, fixing the partition 41 inside the oil tank 4. The fine-tuning of the welding gun 27 is achieved through laser tracking technology. This technical solution uses clamping at both ends of the horizontally placed oil tank 4 and welding the partitions 41 at both ends of the oil tank 4 using the welding gun mechanism 2 on both sides. Compared with the existing robotic arm single-sided welding equipment, it has low cost and high welding efficiency. It can weld the partitions 41 on both sides at the same time. When flipping, it only rolls around the axis of the oil tank 4, and the space required for flipping is small. Compared with the flipping of existing equipment, it can better protect the surface of the oil tank 4.

[0036] like Figure 3 As shown, the flipping assembly includes a slewing bearing 32 fixed to the side of the mounting base 31. The clamping assembly is mounted on the outer ring of the slewing bearing 32 and includes symmetrically arranged support plates 33. A slide rail 34 is fixed on the support plate 33. A sliding plate 35 is slidably connected to the slide rail 34 via a slider. A push-pull clamp 36 is also fixed on the support plate 33. The push-pull clamp 36 is composed of a handle, a connecting rod, and a push rod. The extension length of the push rod is controlled by swinging the handle, so that the push rod abuts against the sliding plate 35. The push-pull clamp 36 is located on one side of the sliding plate 35 and further pushes the sliding plate 35 to slide on the slide rail 34 to control the position of the sliding plate 35. The push-pull clamp 36 is used to abut against the sliding plate 35 to control its position. Claws 37 are also symmetrically installed at both ends of one side of the sliding plate 35, so that the claws 37 move forward to abut against the side of the oil tank 4, and the claws 37 on both sides simultaneously fit against the side of the oil tank 4 to clamp the oil tank 4.

[0037] Symmetrically distributed connecting plates 38 are fixed to both ends of the symmetrical sliding plates 35 on both sides. A steering plate 310 is rotatably connected to the outer ring of the slewing bearing 32. The steering plate 310 is located between the connecting plates 38 on the same side of the two sliding plates 35. A first connecting rod 39 is connected between one end of the connecting plate 38 on one side and one end of the steering plate 310, and a second connecting rod 311 is connected between the other end of the connecting plate 38 on the other side and the other end of the steering plate 310. The two ends of the first connecting rod 39 and the second connecting rod 311 are hinged to the steering plate 310 and the connecting plate 38, respectively. Rotation causes the first link 39 and the second link 311 to move in opposite directions. The sliding plate 35 moves inward along the slide rail 34, which pushes the connecting plate 38 inward, causing the first link 39 to move inward. This further pushes the steering plate 310 to rotate, causing the second link 311 at the other end of the steering plate 310 to move inward. This further causes the sliding plate 35 on the other side to move inward as well, pushing the gripper 37 on the other side to move inward synchronously. This allows both sides to clamp the oil tank 4 simultaneously, linking the grippers 37 on both sides and improving the convenience of clamping the oil tank 4.

[0038] like Figure 3 and 4 As shown, a servo motor 313 is also fixed on the mounting base 31, and a gear is fixed on the servo motor 313. The gear meshes with the outer surface of the slewing bearing 32. The rotation of the servo motor 313 causes the gear to rotate, which in turn causes the outer ring of the slewing bearing 32 to rotate, thereby flipping the clamped oil tank 4 so that the welding gun mechanism 2 can weld the partition 41 around one circumference. The support plate 33, slide rail 34, sliding plate 35, push-pull clamp 36, gripper 37 and connecting plate 38 also rotate with the outer ring of the slewing bearing 32, so that the gripper 37 always clamps the oil tank 4 when flipping.

[0039] A second moving motor 314 is fixed on the side of the mounting base 31. The output end of the second moving motor 314 is connected to a gear, which meshes with the rack 11 on the base 1. The second moving motor 314 controls the rotation of the gear, so that the mounting base 31 moves along the rack 11 on the Y-axis, adjusting the position of the mounting base 31 relative to the oil tank 4.

[0040] The mounting base 31 can also be pushed by a cylinder. A cylinder is installed on the base 1, and the extension end of the cylinder is connected to the side of the mounting base 31. The extension and retraction of the cylinder controls the movement of the mounting base 31, so that the mounting base 31 moves along the guide rail 12.

[0041] like Figures 8 to 10As shown, a limiting mechanism 6 is fixed on the side of the mounting base 31. The limiting mechanism 6 includes a limiting frame 61 fixed on the side of the mounting base 31. A mounting block 31 is fixed inside the limiting frame 61. A linear screw 68 is connected to the mounting block 31 via a bearing. The other end of the linear screw 68 extends to the outside of the limiting frame 61, and a circular handle 67 is fixed to the end of the linear screw 68. A linear slider 65 is threaded onto the linear screw 68. Manually rotating the circular handle 67 causes the linear screw 68 to rotate, further causing the linear slider 65 to move along the linear screw 68. A movable plate 63 is fixed to the linear slider 65. A telescopic cylinder 64 is connected to the movable plate 63. A limiting seat 66 is fixed to the telescopic end of the telescopic cylinder 64. The limiting seat 66 abuts against the end face of the oil tank 4 through the movement of the mounting base 31. The circular handle 67 controls the distance between the limiting seat 66 and the mounting base 31, that is, the distance between the clamping position of the clamping component and the end face of the oil tank 4. The movement of the linear slider 65 will drive the movable plate 63 and the telescopic cylinder 64 to move, controlling the clamping position of the clamping component on the oil tank 4. Subsequently, the extension and retraction of the telescopic cylinder 64 will turn the limiting seat 66 to avoid interference between the limiting seat 66 and the welding torch 27. A guide rod 62 is also fixed on the limiting frame 61. The movable plate 63 is slidably connected to the guide rod 62. The guide rod 62 is used to guide the sliding of the movable plate 63. This limiting mechanism 6 can control the clamping position of the clamping component by adjusting the distance between the limiting seat 66 and the mounting base 31, so that the clamping position can be adjusted according to different models of oil tanks 4, further improving the stability of clamping the oil tank 4.

[0042] like Figure 7As shown, the welding torch mechanism 2 includes a first module 22 slidably connected to the guide rail 12. A first moving motor 21 is fixed to the side of the first module 22. The output end of the first moving motor 21 is connected to a gear that meshes with a rack 11. The gear is driven to rotate by the first moving motor 21 and engages with the rack 11, causing the first module 22 to move along the rack 11 on the Y-axis. The first module 22 is used to control the position of the welding torch 27 on the X-axis. A second module 23 is fixed to the slider of the first module 22. The second module 23 is used to control the height position of the welding torch 27, i.e., its position on the Z-axis. A connecting seat 231 is fixed to the slider of the second module 23. A third module 24 is connected to the side of the connecting seat 231. The third module 24 is also used to control the height position of the welding torch 27. The second module 23 first... The height of the welding torch 27 is pre-positioned, and then precisely positioned by the third module 24, improving the height adjustment efficiency of the welding torch 27. The fourth module 25 is fixed on the slider of the third module 24. The fourth module 25 is used to control the position of the welding torch 27 on the Y-axis. The mounting rod 26 is fixed on the slider of the fourth module 25, and the welding torch 27 is fixed on the mounting rod 26. Through the cooperation of the first module 22, the fourth module 25, the second module 23 and the third module 24, the position of the welding torch 27 on the XYZ axes is controlled, so that the welding torch 27 can weld oil tanks 4 of different specifications. A laser tracker is installed on the welding torch 27. The third module 24, the fourth module 25 and the welding torch 27 cooperate to form a laser tracking device, which finely adjusts the position of the welding torch 27 so that the welding torch 27 is always in contact with the perimeter of the partition 41.

[0043] The second module 23 and the third module 24 are both fixed with load-reducing cylinders 232 on their sides. The two sets of load-reducing cylinders 232 are connected to the connecting seat 231 and the fourth module 25 respectively. Therefore, the welding gun 27 is mounted on the mounting rod 26. The mounting rod 26 is long, which makes the fourth module 25 bear a large load and the load is located on one side. The second module 23 is connected to both the third module 24 and the fourth module 25. The slider of the second module 23 also bears too much load. Therefore, the load-reducing cylinders 232 connect the telescopic end to the connecting seat 231 and the fourth module 25, so that the connecting seat 231 and the fourth module 25 are subjected to an upward pulling force, reducing the load on the fourth module 25 and the second module 23, making the linear module run more smoothly. At the same time, the load-reducing cylinders 232 can also balance the fourth module 25 and prevent it from being tilted.

[0044] like Figure 5As shown, an oil tank lifting mechanism 5 is also provided between the two oil tank clamping and flipping mechanisms 3. The oil tank lifting mechanism 5 is fixed on the base 1. The oil tank lifting mechanism 5 includes a bracket 51. A lifting cylinder 53 is fixed on the top wall of the bracket 51. A lifting plate 52 is connected to the lower end of the lifting cylinder 53. A fork mounting rod 54 is connected to the side of the lifting plate 52. A fork rod 55 is fixed on the fork mounting rod 54. The fork rod 55 is used to lift the oil tank 4. The lifting plate 52 moves up and down through the lifting cylinder 53, which further controls the up and down movement of the fork mounting rod 54 and the fork rod 55, thereby controlling the height of the oil tank 4.

[0045] A screw 58 is threadedly connected to the middle of the top wall of the bracket 51. A limit plate 59 is threadedly connected to the screw 58. The height of the limit plate 59 is controlled by rotating the screw 58, thereby limiting the rising height of the lifting plate 52 and the fork 55. A guide rod 513 is also fixed on the side of the bracket 51. The limit plate 59 is slidably connected to the guide rod 513. The limit plate 59 is located above the lifting plate 52 and moves up and down along the guide rod 513.

[0046] like Figure 6 As shown, a movable cylinder 514 is also fixed on the base 1. The output end of the movable cylinder 514 is connected to a base plate 57. Sliding seats 512 are fixed on both sides of the movable cylinder 514 on the base 1. A sliding rail 511 is slidably connected to the sliding seat 512. An I-beam support 510 is fixed on the sliding rail 511. The base plate 57 is installed on the upper end of the I-beam support 510. Pads 56 are fixed on the left and right ends of the base plate 57. The pads 56 are located between the two fork mounting rods 54. The pads 56 raise the distance between the oil tank 4 and the base plate 57, making it easier for the fork 55 to extend into the bottom of the oil tank 4. The oil tank 4 is lifted, and the output end of the moving cylinder 514 moves, driving the base plate 57 to move. When the oil tank 4 is placed on the pad 56, the extension and retraction of the moving cylinder 514 drives the base plate 57 to move, further controlling the position of the oil tank 4 so that the center of the oil tank 4 and the center of the oil tank clamping and flipping mechanism 3 are on the same plane. Then, the fork 55 rises, driving the oil tank 4 to move upward to the center line position of the oil tank clamping and flipping mechanism 3, so that the central axis of the oil tank 4 and the center line of the oil tank clamping and flipping mechanism 3 are on the same straight line, which facilitates the left and right movement of the oil tank clamping and flipping mechanism 3 to clamp the oil tank 4.

[0047] The welding process of the fuel tank partition: First, place the fuel tank 4 on the fuel tank lifting mechanism 5. The extension and retraction of the moving cylinder 514 causes the base plate 57 and the pads 56 on both ends to move along the X-axis, thereby moving the fuel tank 4. Adjust the center of the fuel tank 4 so that the central axis of the fuel tank 4 and the center of the fuel tank clamping and flipping mechanism 3 are on the same plane. Then, the lifting cylinder 53 drives the fork 55 to move upward, controlling the height of the fuel tank 4 so that the axis of the fuel tank 4 and the center of the fuel tank clamping and flipping mechanism 3 at both ends are on the same straight line, which facilitates the left and right movement of the fuel tank clamping and flipping mechanism 3 to clamp the fuel tank 4.

[0048] Then move the welding torch mechanism 2 so that the welding torches 27 on both sides are located at the junction of the partition plate 41 and the oil tank 4, and the welding torches 27 are always facing downwards, so that they can only weld the lower edge of the partition plate 41. Then flip the oil tank 4 and finely adjust the position of the welding torches 27 while flipping, so that the welding torches 27 are always located on the circumference of the partition plate 41, and weld the partition plates 41 at both ends at the same time, which improves the welding efficiency.

[0049] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fuel tank partition welding machine, including a base, characterized in that: A rack and guide rail are fixed to the base, and the rack and guide rail are distributed in parallel. A welding torch mechanism and an oil tank clamping and tilting mechanism are slidably connected sequentially from both ends towards the middle on the guide rail. The oil tank clamping and tilting mechanism includes a mounting base that slides on the guide rail. A tilting component is fixed to the side of the mounting base, and a clamping component is fixed to the side of the tilting component. The clamping component is used to clamp the oil tank, and the tilting component is used to rotate the clamping component, causing the oil tank to tilt. The welding torch mechanism is used to move the position of the welding torch and fine-tune the welding torch so that the tilting path of the welding torch is the same as that of the partition, thus welding the partition into the oil tank. The flipping assembly includes a slewing bearing fixed to the side of the mounting base. The clamping assembly is mounted on the outer ring of the slewing bearing and includes symmetrically arranged support plates. A slide rail is fixed on the support plate, and a sliding plate is slidably connected to the slide rail. A push-pull clamp is also fixed on the support plate. The push-pull clamp is located on one side of the sliding plate and is used to hold the sliding plate and control its position. Claws are symmetrically installed at both ends of one side of the sliding plate. Symmetrically distributed connecting plates are fixed on both ends of the symmetrical sliding plates. A steering plate is rotatably connected to the outer ring of the slewing bearing. The steering plate is located between the connecting plates on the same side of the two sliding plates. A first connecting rod is connected between one end of the connecting plate on one side and one end of the steering plate. A second connecting rod is connected between the connecting plate on the other side and the other end of the steering plate. The two ends of the first and second connecting rods are hinged to the steering plate and the connecting plate, respectively. Rotation of the steering plate causes the first and second connecting rods to move in opposite directions.

2. The fuel tank partition welding machine according to claim 1, characterized in that: A servo motor is also fixed on the mounting base, and a gear is fixed on the servo motor. The gear meshes with the outer surface of the slewing bearing.

3. The fuel tank partition welding machine according to claim 1, characterized in that: A second moving motor is fixed on the side of the mounting base, and a gear is connected to the output end of the second moving motor. The gear meshes with a rack on the base.

4. The fuel tank partition welding machine according to claim 1, characterized in that: A cylinder is mounted on the base, and the telescopic end of the cylinder is connected to the side of the mounting base.

5. The fuel tank partition welding machine according to claim 1, characterized in that: A limiting mechanism is fixed on the side of the mounting base. The limiting mechanism includes a limiting frame fixed to the side of the mounting base, a mounting block fixed inside the limiting frame, a linear screw connected to the mounting block via a bearing, the other end of the linear screw extending to the outside of the limiting frame and fixed with a circular handle, a linear slider threaded onto the linear screw, a movable plate fixed to the linear slider, a telescopic cylinder connected to the movable plate, a limiting seat fixed to the telescopic end of the telescopic cylinder, the limiting seat being used to abut against the end face of the oil tank, a guide rod fixed to the limiting frame, and the movable plate slidably connected to the guide rod.

6. The fuel tank partition welding machine according to claim 1, characterized in that: The welding torch mechanism includes a first module slidably connected to a guide rail, a first moving motor fixed to the side of the first module, a gear meshing with a rack connected to the output end of the first moving motor, a second module fixed to the slider of the first module, a connecting seat fixed to the slider of the second module, a third module connected to the side of the connecting seat, a fourth module fixed to the slider of the third module, a mounting rod fixed to the slider of the fourth module, and a welding torch fixed to the mounting rod.

7. The fuel tank partition welding machine according to claim 6, characterized in that: The second and third modules are each fixed with a load-reducing cylinder, and the two sets of load-reducing cylinders are respectively connected to the connecting seat and the fourth module.

8. The fuel tank partition welding machine according to claim 1, characterized in that: An oil tank lifting mechanism is also provided between the two oil tank clamping and flipping mechanisms. The oil tank lifting mechanism is fixed on the base. The oil tank lifting mechanism includes a bracket. A lifting cylinder is fixed on the top wall of the bracket. A lifting plate is connected to the lower end of the lifting cylinder. A fork mounting rod is connected to the side of the lifting plate. A fork is fixed on the fork mounting rod. The fork is used to lift the oil tank.

9. The fuel tank partition welding machine according to claim 8, characterized in that: A screw rod is threadedly connected to the middle of the top wall of the bracket, and a limit plate is threadedly connected to the screw rod. A guide rod is also fixed on the side of the bracket, and the limit plate is slidably connected to the guide rod. The limit plate is located above the lifting plate.

10. The fuel tank partition welding machine according to claim 1, characterized in that: A movable cylinder is also fixed on the base. The output end of the movable cylinder is connected to a base plate. Sliding seats are fixed on both sides of the movable cylinder on the base. A sliding rail is slidably connected to the sliding seat. An I-beam support is fixed on the sliding rail. The base plate is installed on the upper end of the I-beam support. Pads are fixed on the left and right ends of the base plate. The pads are located between the two fork rod mounting rods.

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