Double-layer oil tank rotary welding mechanism

Abstract

The invention belongs to the technical field of welding, and particularly relates to a double-layer oil tank rotary welding mechanism which comprises a bottom plate, a support is fixedly connected to one side of the upper end face of the bottom plate, two guide rods are slidably connected to one side of the upper end of the support, a mounting frame is fixedly connected to the lower ends of the guide rods, and a welding gun is fixedly mounted on one side of the bottom of the mounting frame. The bottom plate is further provided with a diameter adaptation type splash-proof assembly. By means of the diameter-adaptive splash-proof assembly, a weld joint can be covered with the shell and the flame-retardant cloth before welding work is started, and splashing welding slag and smoke can be intercepted by the shell and the flame-retardant cloth in the welding process, so that the situation that the surrounding environment is polluted by the welding slag and the smoke is avoided, the welding slag cannot be attached to the surface of a non-welding area of the oil tank barrel, and the welding quality of the oil tank barrel is improved. The situation that irregular protrusions are formed on the surface of the oil tank barrel due to welding slag, and then the appearance quality of the oil tank barrel is affected is avoided.

Description

Technical Field

[0001] This invention belongs to the field of welding technology, specifically a rotary welding mechanism for double-layer oil tanks. Background Technology

[0002] Double-walled oil tanks are environmentally friendly oil storage devices that proactively prevent and promptly detect leaks through a double-walled structure and gap monitoring technology. During the manufacturing process, the inner and outer tanks are typically fabricated separately, then joined and welded together to form a complete double-walled tank structure.

[0003] Patent CN212217651U discloses a double-layer oil tank rotary welding mechanism, relating to the field of rotary welding technology. The patent includes a fixed plate, a motor, an oil tank, an oil tank rotary table, welding fixtures, and a welding machine. The motor includes a motor body and a motor bracket. The lower surface of the motor bracket is welded to the upper surface of the fixed plate. One surface of the motor body is connected to the motor bracket via a threaded hole. The lower surface of the fixed plate has several first mounting holes, and the lower surfaces of several welding fixtures are respectively connected to several first mounting holes. In this patent, by setting a rotating tray, a fixed rod, a first rotating bracket, and a second rotating bracket, the rotation of the oil tanks on both sides can be kept synchronous, ensuring the stability of the weldment during the welding process. By setting the fixture rollers, not only can the oil tank be supported and stabilized, but the friction between the oil tank and the bracket can also be reduced, keeping the weldment stable during welding and reducing noise generated by friction.

[0004] However, the above technical solutions still have the following shortcomings in practical applications:

[0005] When welding double-walled oil tanks, two rotating trays are used to fix the two tank cylinders together, with their end faces touching. The two tank cylinders are then rotated simultaneously, and the welding machine welds along the seam, thus joining the two tank cylinders into one. However, the welding process generates spatter and fumes, which not only pollute the surrounding environment but also easily cause the slag to adhere to the non-welded areas of the tank cylinders. This slag can form irregular protrusions on the tank cylinder surface, affecting its appearance. Even after welding, cleaning the slag from the tank cylinder surface is difficult due to the dispersed nature of the slag, often resulting in incomplete cleaning. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, the present invention proposes a double-layer oil tank rotary welding mechanism.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a double-layer oil tank rotary welding mechanism, including a base plate, a bracket fixedly connected to one side of the upper surface of the base plate, two guide rods slidably connected to one side of the upper end of the bracket, an installation frame fixedly connected to the lower end of the guide rods, a welding gun fixedly installed on one side of the bottom of the installation frame, and a diameter-adaptive anti-splash component is also provided on the base plate;

[0008] The diameter-adaptive splashproof assembly includes a housing fixedly connected to the middle of the upper surface of the base plate. Circular holes are provided on both sides of the housing, and flame-retardant cloth is fixedly connected to the wall of each circular hole. A circular hole is provided in the middle of the flame-retardant cloth. One side of the welding torch penetrates the housing and is slidably connected to it. Multiple tension rods are evenly distributed and slidably connected along the circumference on both sides of the housing. A sliding rod is slidably connected to one end of each tension rod, and one end of the sliding rod is fixedly connected to one side of the flame-retardant cloth.

[0009] Preferably, the base plate is further provided with an oil tank positioning assembly;

[0010] The oil tank positioning assembly includes pillars that are slidably connected to both sides of the upper end of the base plate via a sliding groove. A turntable is rotatably mounted on one side of the upper end of the pillars. Multiple radial rods are evenly distributed and slidably connected to one side of the turntable along the circumference. A positioning block is fixedly connected to one end of each radial rod.

[0011] Preferably, a bidirectional threaded rod is rotatably provided at both ends on one side of the base plate, and the two sides of the bidirectional threaded rod are respectively threaded to the two side supports. A motor is fixedly connected to one side of the base plate, and the output end of the motor is fixedly connected to one end of the bidirectional threaded rod.

[0012] Preferably, a second motor is fixedly connected to one side of the upper end of the support column, the output end of the second motor is fixedly connected to one side of the turntable, a rotating ring is rotatably sleeved on one side of the outer ring of the turntable, a connecting rod is rotatably arranged at one end of the radial rod, one end of the connecting rod is rotatably arranged on the rotating ring, a cylinder is fixedly connected to one side of the turntable, and the piston end of the cylinder is fixedly connected to one side of the positioning block.

[0013] Preferably, an electric actuator is fixedly connected to one side of the upper end of the bracket, and the piston end of the electric actuator is fixedly connected to one side of the mounting bracket.

[0014] Preferably, cylinder two is fixedly connected to both end faces of the housing, an adjusting ring is fixedly connected to the piston end of cylinder two, a connecting rod two is rotatably connected to one end of the tension rod, and one end of the connecting rod two is rotatably connected to the adjusting ring, and the flame-retardant cloth is elastic.

[0015] Preferably, an annular tube is fixedly sleeved on the outer ring of the housing, and multiple air inlets are arranged circumferentially on the annular tube. The air inlets penetrate the housing and are fixedly connected to it. A dust collection box is fixedly connected to one side of the upper surface of the bottom plate. An exhaust fan is connected and fixedly connected to one side of the upper end of the dust collection box. A connecting pipe is connected to the air inlet end of the exhaust fan, and one end of the connecting pipe is connected to one side of the annular tube.

[0016] Preferably, it also includes an adsorption auxiliary component;

[0017] The adsorption auxiliary component includes a gear ring 1 rotatably sleeved on both sides of the outer wall of the housing. A rotating plate is fixedly connected to one side of the gear ring 1, and a cylinder 3 is fixedly connected to one side of the rotating plate. A connecting rod is fixedly connected to the piston end of the cylinder 3. A transmission ball is fixedly connected to one end of the connecting rod, and an inclined block is fixedly connected to one end of the sliding rod. An embedded ring is rotatably disposed in a groove on one side of the housing, and a metal brush is rotatably disposed on one side of the embedded ring.

[0018] Preferably, a spring is sleeved on one side of the slide rod, one end of the spring is fixedly connected to the inclined block, and the other end is fixedly connected to the end of the tension rod. A motor six is ​​fixedly connected to one side of the outer wall of the housing, and a gear one is fixedly connected to the output ends of both sides of the motor six. The gear one on both sides meshes with the gear ring one on both sides, and the gear one is rotatably mounted on the housing.

[0019] Preferably, a second gear is rotatably disposed on one side of the inner cavity of the housing, a second gear ring is fixedly connected to one side of the embedded ring, the second gear meshes with the tooth blocks on the second gear ring, a fifth motor is fixedly connected to one side of the outer wall of the housing, the output end of the fifth motor is fixedly connected to the second gear, a fourth motor is fixedly connected to one side of the second gear ring, and the output end of the fourth motor is fixedly connected to one side of the metal brush.

[0020] The beneficial effects of this invention are as follows:

[0021] 1. The double-walled oil tank rotary welding mechanism of this invention utilizes a diameter-adaptive anti-splash component. Before welding begins, the weld seam is covered by the shell and flame-retardant cloth. During welding, the spattering slag and fumes are intercepted by the shell and flame-retardant cloth, thus preventing slag and fumes from polluting the surrounding environment. Furthermore, the slag does not adhere to the non-welding area of ​​the oil tank, avoiding the formation of irregular protrusions on the tank surface that could affect its appearance. Moreover, because the slag is intercepted and concentrated only in the welding area, subsequent cleaning of any remaining slag on the tank surface is more convenient and less prone to dead zones.

[0022] 2. The double-walled oil tank rotary welding mechanism of this invention can draw welding slag and fumes generated during the welding process into a dust collection box, preventing welding slag from adhering to the inner wall of the shell and the surface of the flame-retardant cloth. This effectively avoids the risk of weld seams being obscured and welding quality being affected by accumulated welding slag falling off during subsequent operations. Furthermore, it also avoids the situation where welding slag adhering to the surface of the flame-retardant cloth affects its elasticity, ensuring that the flame-retardant cloth adheres tightly to the surface of the oil tank during subsequent welding operations, thereby maintaining a stable anti-splash effect.

[0023] 3. The double-layer oil tank rotary welding mechanism of the present invention utilizes an adsorption auxiliary component. During the adsorption of welding slag, the metal brush revolves and rotates within the inner cavity of the shell, lifting up the welding slag with strong adhesion. The lifted welding slag is more easily adsorbed into the dust collection box. Simultaneously, under the intermittent contact action of the inclined block and the transmission ball, the flame-retardant cloth vibrates in multiple directions, shaking out the welding slag hidden in its folds or gaps. This allows the welding slag to be smoothly sucked into the dust collection box, thus avoiding the situation where the welding slag is hidden in the folds or gaps of the flame-retardant cloth and is difficult to adsorb, further improving the collection efficiency of welding slag. Attached Figure Description

[0024] The invention will now be further described with reference to the accompanying drawings.

[0025] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0026] Figure 2 This is a schematic diagram of the three-dimensional structure of the turntable;

[0027] Figure 3 This is a schematic diagram of the three-dimensional structure of the shell.

[0028] Figure 4 yes Figure 3 Enlarged view of a portion of point A in the middle;

[0029] Figure 5 This is a schematic diagram of the three-dimensional structure at the adjustment ring;

[0030] Figure 6 yes Figure 5 Enlarged view of a section at point B in the middle;

[0031] Figure 7 This is a schematic diagram of the three-dimensional structure of the shell cavity;

[0032] Figure 8 This is a schematic diagram of a partial cross-sectional three-dimensional structure of the shell.

[0033] Figure 9 This is a schematic diagram of the three-dimensional structure of two parts of the gear ring;

[0034] Figure 10 yes Figure 9Enlarged view of a section at point C;

[0035] Figure 11 This is a schematic diagram of the three-dimensional structure of the transmission ball.

[0036] Figure 12 This is a schematic diagram of the three-dimensional structure of a ring-shaped tube.

[0037] In the diagram: 1. Base plate; 2. Support column; 3. Double-threaded rod; 4. Motor 1; 5. Turntable; 6. Motor 2; 7. Bracket; 8. Electric actuator; 9. Guide rod; 10. Mounting bracket; 11. Welding torch; 12. Rotating ring; 13. Connecting rod 1; 14. Radial rod; 15. Positioning block; 16. Cylinder 1; 17. Housing; 18. Dust collection box; 19. Ring tube; 20. Gear ring 1; 21. Adjusting ring; 22. Connecting rod 2; 23. Cylinder 2; 24. Connecting rod; 25. Cylinder 3; 26. Flame-retardant cloth; 27. Embedded ring; 28. Metal brush; 29. ​​Rotating plate; 30. Air inlet; 31. Connecting pipe; 32. Exhaust fan; 33. Motor 4; 34. Motor 5; 35. Motor 6; 36. Gear 1; 37. Gear 2; 38. Slide rod; 39. Spring; 40. Wedge block; 41. Gear ring 2; 42. Transmission ball; 43. Tension rod. Detailed Implementation

[0038] The technical solution of the present invention will now be clearly and completely described 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.

[0039] Please refer to Figures 1-12 The present invention provides a technical solution: a double-layer oil tank rotary welding mechanism, including a base plate 1, a bracket 7 fixedly connected to one side of the upper end face of the base plate 1, two guide rods 9 slidably connected to one side of the upper end face of the bracket 7, a mounting frame 10 fixedly connected to the lower end of the guide rods 9, a welding gun 11 fixedly installed on one side of the bottom of the mounting frame 10, and a diameter-adaptive anti-splash component is also provided on the base plate 1.

[0040] The diameter-adaptive splashproof assembly includes a housing 17 fixedly connected to the middle of the upper end face of the base plate 1. Both sides of the housing 17 have round holes, and flame-retardant cloth 26 is fixedly connected to the wall of the round holes. The flame-retardant cloth 26 has a round hole in the middle. One side of the welding torch 11 passes through the housing 17 and is slidably connected to it. Both ends of the housing 17 are evenly distributed and slidably connected with multiple tension rods 43 along the circumference. One end of the tension rod 43 is slidably connected to a slide rod 38, and one end of the slide rod 38 is fixedly connected to one side of the flame-retardant cloth 26.

[0041] In this embodiment, as Figures 1-3 , Figure 5As shown, an oil tank positioning assembly is also provided on the base plate 1;

[0042] The oil tank positioning assembly includes support columns 2 that are slidably connected to both sides of the upper end of the base plate 1 via a slide groove. A turntable 5 is rotatably mounted on one side of the upper end of the support column 2. Multiple radial rods 14 are evenly distributed and slidably connected along the circumference on one side of the turntable 5. A positioning block 15 is fixedly connected to one end of each radial rod 14.

[0043] Two-way threaded rods 3 are rotatably installed at both ends on one side of the base plate 1. The two-way threaded rods 3 are threadedly connected to the two side supports 2 respectively. A motor 4 is fixedly connected to one side of the base plate 1. The output end of the motor 4 is fixedly connected to one end of the two-way threaded rods 3.

[0044] A motor 2 6 is fixedly connected to one side of the upper end of the support column 2. The output end of the motor 2 6 is fixedly connected to one side of the turntable 5. A rotating ring 12 is rotatably sleeved on one side of the outer ring of the turntable 5. A connecting rod 13 is rotatably set at one end of the radial rod 14. One end of the connecting rod 13 is rotatably set on the rotating ring 12. A cylinder 16 is fixedly connected to one side of the turntable 5. The piston end of the cylinder 16 is fixedly connected to one side of the positioning block 15.

[0045] An electric actuator 8 is fixedly connected to one side of the upper end of the bracket 7, and the piston end of the electric actuator 8 is fixedly connected to one side of the mounting bracket 10.

[0046] Cylinder 23 is fixedly connected to both ends of housing 17. Adjusting ring 21 is fixedly connected to the piston end of cylinder 23. Connecting rod 22 is rotatably mounted on one end of tension rod 43. One end of connecting rod 22 is rotatably mounted on adjusting ring 21. Flame-retardant cloth 26 is elastic.

[0047] Specifically, in existing technologies, when welding double-walled oil tanks, two rotating trays are used to fix the two tank cylinders together, with their end faces touching. The two tank cylinders are then rotated simultaneously, and during rotation, a welding machine welds along the seam, thus joining the two tank cylinders together. However, the welding process generates spatter and fumes, which not only pollute the surrounding environment but also easily cause the slag to adhere to the non-welded areas of the tank cylinders. This slag can easily form irregular protrusions on the tank cylinder surface, affecting the appearance quality. Even after welding, cleaning the slag from the tank cylinder surface is difficult due to the dispersed nature of the slag, often resulting in incomplete cleaning.

[0048] Therefore, in order to solve the above problems, the working principle of this embodiment is as follows:

[0049] First, the two oil tank cylinders are respectively attached to the surfaces of the turntables 5 on both sides. Then, the cylinder 16 drives the positioning block 15 on one side to slide on the turntable 5. Under the transmission cooperation of the rotating ring 12 and the connecting rod 13, multiple positioning blocks 15 slide radially at the same time, thus clamping the oil tank cylinders. At this time, the axes of the oil tank cylinders, the turntable 5, and the shell 17 are aligned. Then, the motor 4 drives the bidirectional threaded rod 3 to rotate, causing the supports 2 on both sides to slide simultaneously and move closer to each other until the two oil tank cylinders are attached. At this time, the weld seam of the two oil tank cylinders is located in the inner cavity of the shell 17, and the welding torch 11 is aligned with the weld seam. Then, based on the diameter of the oil tank, cylinder 23 drives the adjusting ring 21 to move laterally. Under the transmission cooperation of the adjusting ring 21 and connecting rod 22, multiple tension rods 43 move simultaneously, stretching the flame-retardant cloth 26 through the sliding rod 38, and bringing the edge of the flame-retardant cloth 26 close to the surface of the oil tank until the flame-retardant cloth 26 adheres to the surface of the oil tank. With the cooperation of the shell 17 and the flame-retardant cloth 26, the weld seam is covered. Then, electric actuator 8 drives the welding torch 11 to a suitable height, and then the welding torch 11 is turned on. At the same time, motors 6 on both sides drive the turntable 5 to rotate, so that the two oil tanks rotate simultaneously. Welding can then be performed along the annular weld seam using the welding torch 11. During the welding process, the splashing slag and fumes are intercepted by the shell 17 and the flame-retardant cloth 26, thereby avoiding pollution of the surrounding environment by the slag and fumes. In addition, the slag will not adhere to the surface of the non-welded area of ​​the oil tank, avoiding the formation of irregular protrusions on the surface of the oil tank due to the slag, which would affect the appearance quality of the oil tank. Furthermore, since the welding slag is intercepted and concentrated only in the welding area, it is easier to clean the welding slag remaining on the surface of the oil tank, and it is less likely to cause cleaning dead spots.

[0050] In this embodiment, as Figure 3 , Figure 4 , Figure 12 As shown, an annular tube 19 is fixedly sleeved on the outer ring of the housing 17. Multiple air inlets 30 are arranged circumferentially on the annular tube 19. The air inlets 30 penetrate the housing 17 and are fixedly connected to it. A dust collection box 18 is fixedly connected to one side of the upper end face of the bottom plate 1. An exhaust fan 32 is connected and fixed to one side of the upper end of the dust collection box 18. A connecting pipe 31 is connected to the air inlet end of the exhaust fan 32. One end of the connecting pipe 31 is connected to one side of the annular tube 19.

[0051] Specifically, in the above embodiments, although the shell 17 and the flame-retardant cloth 26 can effectively intercept welding slag, the intercepted slag will adhere to its inner wall and surface. In subsequent welding operations, this adhered welding slag may fall off again and onto the weld area, thereby obscuring the weld and directly affecting the welding quality. In addition, when too much welding slag accumulates on the surface of the flame-retardant cloth 26, it will increase its weight and hinder its elastic deformation, resulting in a decrease in the tightness of the adhesion between the flame-retardant cloth 26 and the surface of the oil tank, thereby weakening its overall splash-proof effect.

[0052] Therefore, in order to solve the above problems, the working principle of this embodiment is as follows:

[0053] During welding, activating the exhaust fan 32 allows for the suction of welding slag and fumes through the air inlet 30, annular pipe 19, and connecting pipe 31 into the dust collection box 18 under negative pressure adsorption. This prevents welding slag from adhering to the inner wall of the shell 17 and the surface of the flame-retardant cloth 26, effectively avoiding the risk of weld seams being obscured and welding quality being affected by accumulated welding slag falling off during subsequent operations. Furthermore, it prevents welding slag from adhering to the surface of the flame-retardant cloth 26 and affecting its elasticity, ensuring that the flame-retardant cloth 26 adheres tightly to the surface of the oil tank during subsequent welding operations, thus maintaining a stable anti-splash effect.

[0054] In this embodiment, as Figures 3-11 As shown, it also includes an adsorption auxiliary component;

[0055] The adsorption auxiliary component includes a gear ring 20 rotatably sleeved on both sides of the outer wall of the housing 17. A rotating plate 29 is fixedly connected to one side of the gear ring 20. A cylinder 25 is fixedly connected to one side of the rotating plate 29. A connecting rod 24 is fixedly connected to the piston end of the cylinder 25. A transmission ball 42 is fixedly connected to one end of the connecting rod 24. A wedge block 40 is fixedly connected to one end of the slide rod 38. An embedded ring 27 is rotatably disposed in a groove on one side of the housing 17. A metal brush 28 is rotatably disposed on one side of the embedded ring 27.

[0056] A spring 39 is fitted on one side of the slide bar 38. One end of the spring 39 is fixedly connected to the inclined block 40, and the other end is fixedly connected to the end of the tension rod 43. A motor 6 35 is fixedly connected to one side of the outer wall of the housing 17. Gear 1 36 is fixedly connected to both output ends of the motor 6 35. The gear 1 36 on both sides meshes with the gear ring 20 on both sides. The gear 1 36 is rotatably mounted on the housing 17.

[0057] A gear 2 37 is rotatably mounted on one side of the inner cavity of the housing 17. A gear ring 2 41 is fixedly connected to one side of the embedded ring 27. The gear 2 37 and the gear ring 2 41 mesh with each other. A motor 5 34 is fixedly connected to one side of the outer wall of the housing 17. The output end of the motor 5 34 is fixedly connected to the gear 2 37. A motor 4 33 is fixedly connected to one side of the gear ring 2 41. The output end of the motor 4 33 is fixedly connected to one side of the metal brush 28.

[0058] Specifically, in the above embodiments, although welding slag and fumes generated during the welding process can be absorbed by negative pressure adsorption, for welding slag with strong adhesion, suction alone may not be enough to remove it from the adhesion surface and draw it into the dust collection box 18. In addition, the wrinkles and gaps on the surface of the flame-retardant cloth 26 can easily become hiding places for welding slag, which is also difficult to be effectively adsorbed, thus affecting the overall collection efficiency.

[0059] Therefore, in order to solve the above problems, the working principle of this embodiment is as follows:

[0060] During the slag adsorption process, motor 5 34 drives gear 2 37 to rotate, causing gear ring 2 41 and embedded ring 27 to rotate synchronously, making metal brush 28 perform circular motion. At the same time, motor 4 33 drives metal brush 28 to rotate, so metal brush 28 rotates on its own axis and revolves around the center, thus cleaning the slag adhering to the inner wall of housing 17, lifting up the slag with strong adhesion, and making it easier to adsorb the lifted slag into dust collection box 18. Furthermore, during the revolution of metal brush 28, when metal brush 28 is about to contact welding gun 11, metal brush 28 will return to its original position, so as not to interfere with welding gun 11. Simultaneously, based on the distance between the inclined block 40 and the axis of the housing 17, the cylinder 25 drives the connecting rod 24 to move, adjusting the distance between the transmission ball 42 and the axis of the housing 17. Then, the motor 35 drives the gears 36 on both sides to rotate, causing the gear ring 20 to rotate. During the rotation of the gear ring 20, the transmission ball 42 will intermittently contact multiple inclined blocks 40. The transmission ball 42 will first contact the inclined surface of the inclined block 40, and the slide rod 38 will slide at the end of the tension rod 43 by squeezing the inclined block 40, thus compressing the spring 39. After the transmission ball 42 passes the inclined block 40, the inclined block 40 will reset under the action of the spring 39. This cycle can cause the flame-retardant cloth 26 to vibrate in multiple directions, shaking out the welding slag hidden in its folds or gaps, so that the welding slag can be smoothly sucked into the dust collection box 18. This avoids the situation where the welding slag is hidden in the folds or gaps of the flame-retardant cloth 26 and is difficult to be absorbed, further improving the collection efficiency of welding slag.

[0061] Working principle: The two oil tank cylinders are respectively attached to the surfaces of the turntables 5 on both sides. Then, the cylinder 16 drives the positioning block 15 on one side to slide on the turntable 5. Under the transmission cooperation of the rotating ring 12 and the connecting rod 13, multiple positioning blocks 15 slide radially at the same time, thus clamping the oil tank cylinders. At this time, the axes of the oil tank cylinders, the turntables 5, and the shell 17 are aligned. Then, the motor 4 drives the bidirectional threaded rod 3 to rotate, causing the supports 2 on both sides to slide simultaneously and move closer to each other until the two oil tank cylinders are attached. At this time, the weld seam of the two oil tank cylinders is located in the inner cavity of the shell 17, and the welding torch 11 is aligned with the weld seam. Then, based on the diameter of the oil tank, cylinder 23 drives the adjusting ring 21 to move laterally. Under the transmission cooperation of the adjusting ring 21 and connecting rod 22, multiple tension rods 43 move simultaneously, stretching the flame-retardant cloth 26 through the sliding rod 38, and bringing the edge of the flame-retardant cloth 26 close to the surface of the oil tank until the flame-retardant cloth 26 adheres to the surface of the oil tank. With the cooperation of the shell 17 and the flame-retardant cloth 26, the weld seam is covered. Then, electric actuator 8 drives the welding torch 11 to a suitable height, and then the welding torch 11 is turned on. At the same time, motors 6 on both sides drive the turntable 5 to rotate, so that the two oil tanks rotate simultaneously. Welding can then be performed along the annular weld seam using the welding torch 11. During the welding process, the spattering slag and fumes will be intercepted by the shell 17 and the flame-retardant cloth 26. During welding, the exhaust fan 32 is activated, and under negative pressure adsorption, the welding slag and fumes generated during welding are drawn into the dust collection box 18 through the air inlet 30, annular pipe 19, and connecting pipe 31, preventing welding slag from adhering to the inner wall of the housing 17 and the surface of the flame-retardant cloth 26. During the adsorption of welding slag, the motor 5 34 drives the gear 2 37 to rotate, causing the gear ring 2 41 and the embedded ring 27 to rotate synchronously, making the metal brush 28 perform a circular motion. At the same time, the motor 4 33 drives the metal brush 28 to rotate, so the metal brush 28 rotates on its own axis and revolves around the center, which can sweep away the welding slag adhering to the inner wall of the housing 17, and lift up the welding slag with strong adhesion, making it easier to adsorb into the dust collection box 18. Furthermore, during the revolution of the metal brush 28, when the metal brush 28 is about to contact the welding gun 11, the metal brush 28 will return to its original position, so as not to interfere with the welding gun 11. Meanwhile, based on the distance between the inclined block 40 and the axis of the housing 17, the cylinder 25 drives the connecting rod 24 to move, adjusting the distance between the transmission ball 42 and the axis of the housing 17. Then, the motor 35 drives the gears 36 on both sides to rotate, which makes the gear ring 20 rotate. During the rotation of the gear ring 20, the transmission ball 42 will intermittently contact multiple inclined blocks 40. The transmission ball 42 will first contact the inclined surface of the inclined block 40, and the slide rod 38 will slide at the end of the tension rod 43 by squeezing the inclined block 40, thus compressing the spring 39. After the transmission ball 42 passes the inclined block 40, the inclined block 40 will reset under the action of the spring 39. This cycle will cause the flame-retardant cloth 26 to vibrate in multiple directions, shaking out the welding slag hidden in its folds or gaps, so that the welding slag can be smoothly sucked into the dust collection box 18.

[0062] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-layer oil tank rotary welding mechanism, comprising a base plate (1), characterized in that: A bracket (7) is fixedly connected to one side of the upper end of the base plate (1). Two guide rods (9) are slidably connected to one side of the upper end of the bracket (7). A mounting bracket (10) is fixedly connected to the lower end of the guide rods (9). A welding torch (11) is fixedly installed on one side of the bottom of the mounting bracket (10). A diameter-adaptive anti-splash component is also provided on the base plate (1). The diameter-adaptive splashproof assembly includes a housing (17) fixedly connected to the middle of the upper end face of the base plate (1). Both sides of the housing (17) are provided with round holes, and flame-retardant cloth (26) is fixedly connected to the wall of the round hole. The flame-retardant cloth (26) is provided with a round hole in the middle. The welding torch (11) passes through the housing (17) on one side and is slidably connected to it. Both ends of the housing (17) are evenly distributed and slidably connected with multiple tension rods (43) along the circumference. One end of the tension rod (43) is slidably connected to a slide rod (38), and one end of the slide rod (38) is fixedly connected to one side of the flame-retardant cloth (26).

2. The double-walled oil tank rotary welding mechanism according to claim 1, characterized in that: The base plate (1) is also provided with an oil tank positioning assembly; The oil tank positioning assembly includes a support column (2) that is slidably connected to both sides of the upper end of the base plate (1) via a slide groove. A turntable (5) is rotatably provided on one side of the upper end of the support column (2). Multiple radial rods (14) are evenly distributed and slidably connected on one side of the turntable (5) along the circumference. A positioning block (15) is fixedly connected to one end of each radial rod (14).

3. The double-walled oil tank rotary welding mechanism according to claim 2, characterized in that: The base plate (1) has a bidirectional threaded rod (3) rotatably installed at both ends on one side. The two sides of the bidirectional threaded rod (3) are threadedly connected to the two side pillars (2) respectively. The base plate (1) has a motor (4) fixedly connected to one side. The output end of the motor (4) is fixedly connected to one end of the bidirectional threaded rod (3).

4. The double-walled oil tank rotary welding mechanism according to claim 2, characterized in that: A motor (6) is fixedly connected to one side of the upper end of the support column (2). The output end of the motor (6) is fixedly connected to one side of the turntable (5). A rotating ring (12) is rotatably sleeved on one side of the outer ring of the turntable (5). A connecting rod (13) is rotatably set at one end of the radial rod (14). One end of the connecting rod (13) is rotatably set on the rotating ring (12). A cylinder (16) is fixedly connected to one side of the turntable (5). The piston end of the cylinder (16) is fixedly connected to one side of the positioning block (15).

5. The double-walled oil tank rotary welding mechanism according to claim 1, characterized in that: An electric push rod (8) is fixedly connected to one side of the upper end of the bracket (7), and the piston end of the electric push rod (8) is fixedly connected to one side of the mounting bracket (10).

6. The double-walled oil tank rotary welding mechanism according to claim 1, characterized in that: The housing (17) is fixedly connected to two cylinders (23) on both ends. The piston end of the cylinder (23) is fixedly connected to an adjusting ring (21). One end of the tension rod (43) is rotatably connected to a connecting rod (22). One end of the connecting rod (22) is rotatably connected to the adjusting ring (21). The flame-retardant cloth (26) is elastic.

7. The double-walled oil tank rotary welding mechanism according to claim 1, characterized in that: The outer ring of the housing (17) is fixedly fitted with an annular tube (19). Multiple air inlets (30) are arranged along the circumferential direction on the annular tube (19). The air inlets (30) penetrate the housing (17) and are fixedly connected to it. A dust collection box (18) is fixedly connected to one side of the upper end face of the bottom plate (1). A fan (32) is connected and fixed to one side of the upper end of the dust collection box (18). A connecting pipe (31) is connected to the air inlet end of the fan (32). One end of the connecting pipe (31) is connected to one side of the annular tube (19).

8. The double-walled oil tank rotary welding mechanism according to claim 1, characterized in that: It also includes adsorption auxiliary components; The adsorption auxiliary component includes a gear ring (20) rotatably sleeved on both sides of the outer wall of the housing (17). A rotating plate (29) is fixedly connected to one side of the gear ring (20). A cylinder (25) is fixedly connected to one side of the rotating plate (29). A connecting rod (24) is fixedly connected to the piston end of the cylinder (25). A transmission ball (42) is fixedly connected to one end of the connecting rod (24). A wedge (40) is fixedly connected to one end of the slide rod (38). An embedded ring (27) is rotatably arranged in a groove on one side of the housing (17). A metal brush (28) is rotatably arranged on one side of the embedded ring (27).

9. A double-walled oil tank rotary welding mechanism according to claim 8, characterized in that: A spring (39) is fitted on one side of the slide rod (38). One end of the spring (39) is fixedly connected to the inclined block (40), and the other end is fixedly connected to the end of the tension rod (43). A motor six (35) is fixedly connected to one side of the outer wall of the housing (17). Gear one (36) is fixedly connected to the output ends of the motor six (35) on both sides. The gear one (36) on both sides meshes with the gear ring one (20) on both sides respectively. The gear one (36) is rotatably mounted on the housing (17).

10. A double-walled oil tank rotary welding mechanism according to claim 8, characterized in that: Gear 2 (37) is rotatably mounted on one side of the inner cavity of the housing (17). Gear ring 2 (41) is fixedly connected to one side of the embedded ring (27). Gear 2 (37) and the tooth blocks on gear ring 2 (41) mesh with each other. Motor 5 (34) is fixedly connected to one side of the outer wall of the housing (17). The output end of motor 5 (34) is fixedly connected to gear 2 (37). Motor 4 (33) is fixedly connected to one side of gear ring 2 (41). The output end of motor 4 (33) is fixedly connected to one side of metal brush (28).

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