An automatic seam-finding welding machine for steel drums

Abstract

This invention belongs to the field of welding technology, specifically an automatic seam-finding welding machine for steel drums. It includes a base on which a circumferential seam welding assembly is mounted. The circumferential seam welding assembly includes a second fixing ring fixedly connected to one side of the upper surface of the base. A toothed ring is rotatably mounted on the inner ring of the second fixing ring, and a welding torch is slidably connected to one side of the toothed ring. A drum body loading assembly is also mounted on the base. This invention utilizes the drum body loading assembly, drum lid loading assembly, drum body transfer assembly, and drum lid transfer assembly to allow multiple drum lids to be precisely spliced ​​sequentially to the drum body before welding, thus eliminating the need for manual loading of drum lids and bodies and reducing the labor intensity of workers.

Description

Technical Field

[0001] This invention belongs to the field of welding technology, specifically an automatic seam-finding welding machine for steel drums. Background Technology

[0002] Steel drums are cylindrical containers made of metal and are widely used in the packaging of many commodities, including pharmaceuticals and food. During the production and processing of steel drums, the drum body and lid are welded together using a welding machine to enhance the connection strength between them.

[0003] Patent CN110640389A discloses a stainless steel barrel welding machine, comprising: a welding cabinet with an operating platform inside; a fixed rotating assembly including a rotating base and a rotating motor; the rotating base being mounted on the operating platform, with a rotating fixing frame on top of the rotating base; a rotating shaft at the bottom of the rotating base, with a driven gear at the bottom end of the rotating shaft; and the rotating motor mounted below the operating platform, with a driving gear on the output shaft of the rotating motor meshing with the driven gear. This patent features a simple structure, convenient operation, and adjustable rotation speed during welding. It enables the smooth welding of the stainless steel barrel body and lid, producing smooth and aesthetically pleasing welds, significantly improving welding efficiency and meeting product manufacturing quality requirements.

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

[0005] When welding the lid and body of a steel drum, the lid and body must first be fixed in the appropriate position and fitted together before welding the joint. However, when welding a large number of lids and bodies, operators need to frequently fix them in the correct position, resulting in high labor intensity. While using a robotic arm to load the lids and bodies is feasible, if they are piled up haphazardly, the robotic arm struggles to accurately pick them up according to the preset path, thus affecting the normal progress of the welding work. 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 an automatic seam-finding welding machine for steel drums.

[0007] The technical solution adopted by the present invention to solve its technical problem is: an automatic seam-finding welding machine for steel drums, including a base, on which a circumferential seam welding assembly is provided;

[0008] The circumferential weld assembly includes a second fixed ring fixedly connected to one side of the upper end face of the base. The inner ring of the second fixed ring is rotatably provided with a toothed ring, and a welding gun is slidably connected to one side of the toothed ring.

[0009] The base is also equipped with a barrel loading assembly;

[0010] The barrel loading assembly includes a frame fixedly connected to one side of the upper surface of the base. A conveyor belt is provided on the frame. A loading box is fixedly connected to one side of the upper surface of the base. The upper side of the loading box is attached to one side of the frame. A placement plate is slidably connected to one side of the loading box. A lead screw guide rail is installed on one side of the loading box. A lifting plate is slidably provided on the lead screw guide rail. A telescopic plate is inserted into and slidably connected to one side of the lifting plate. An infrared sensor is fixedly connected to one side of the upper end of the frame.

[0011] The base is also equipped with a bucket lid feeding assembly;

[0012] The bucket lid feeding assembly includes a fixing ring 1 fixedly connected to one side of the upper end face of the base. The fixing ring 1 has multiple radial rods evenly distributed and slidably connected in the radial direction. One end of each radial rod is fixedly connected to a feeding plate. An elastic cloth is fixedly connected between two adjacent feeding plates. The multiple feeding plates and the elastic cloth cooperate to form a funnel-shaped structure. The lower end face of the fixing ring has multiple connecting rods evenly distributed and fixed in the radial direction.

[0013] Preferably, a cylinder six is ​​fixedly connected to one side of the gear ring, the piston end of the cylinder six is ​​fixedly connected to one end of the welding torch, a gear one is rotatably arranged on one side of the fixing ring two, the gear one meshes with the tooth blocks of the outer ring of the gear ring, and a motor one is fixedly connected to one side of the fixing ring two, the output end of the motor one is fixedly connected to the gear one.

[0014] Preferably, the base is further provided with a barrel transfer assembly;

[0015] The barrel transfer assembly includes a second lead screw guide rail installed on one side of the upper surface of the base. A mounting plate is slidably mounted on the second lead screw guide rail. Two sliding rods are slidably connected to the upper side of the mounting plate. A first lifting plate is fixedly connected to the upper end of the sliding rods. A third lead screw guide rail is mounted on the first lifting plate. An adjusting frame is slidably mounted on the third lead screw guide rail. An electric chuck is rotatably mounted on the upper end of the adjusting frame. A fifth cylinder is fixedly connected to one side of the mounting plate. The piston end of the fifth cylinder is fixedly connected to one side of the bottom of the first lifting plate. A second motor is fixedly connected to one side of the upper end of the adjusting frame. The output end of the second motor is fixedly connected to one side of the electric chuck.

[0016] Preferably, two cylinders four are fixedly connected to one side of the lifting plate, and the piston end of the cylinder four is fixedly connected to one side of the telescopic plate. A cylinder one is fixedly connected to one side of the upper end of the frame, and an adjusting plate is fixedly connected to the piston end of the cylinder one. A cylinder two is fixedly connected to one side of the feeding box, and the piston end of the cylinder two is fixedly connected to one side of the placement plate.

[0017] Preferably, a rotating ring is rotatably provided on one side of the outer ring of the fixed ring, a connecting rod is rotatably provided on one end of the radial rod, one end of the connecting rod is rotatably provided on the rotating ring, a threaded rod is threadedly connected to one end of the radial rod on one side, one end of the threaded rod is rotatably provided on the connecting rod, and a motor is fixedly connected to one end of the connecting rod on one side, with the output end of the motor fixedly connected to one end of the threaded rod.

[0018] Preferably, a cylinder nine is fixedly connected to the lower end of one side of the feeding plate, and a baffle is fixedly connected to the piston end of the cylinder nine. A lead screw guide six is ​​installed on one side of both sides of the feeding plates, and a slider is slidably arranged on the lead screw guide six. A cylinder seven is fixedly connected to one side of the slider, and a clamping block is fixedly connected to the piston end of the cylinder seven. A through hole is provided on the feeding plate for the clamping block to pass through.

[0019] Preferably, the base is further provided with a bucket lid transfer assembly;

[0020] The bucket lid transfer assembly includes a lead screw guide rail four installed on one side of the upper end face of the base. A transverse frame is slidably mounted on the lead screw guide rail four. A lead screw guide rail five is installed on one side of the transverse frame. A lifting plate two is slidably mounted on the lead screw guide rail five. A flipping frame is rotatably mounted on one side of the lifting plate two. A motor three is fixedly connected to one end of the lifting plate two. The output end of the motor three is fixedly connected to one end of the flipping frame. A vacuum pump is fixedly connected to one side of the flipping frame. The vacuum pump has an air inlet connected to an air pipe. A suction cup is provided at one end of the air pipe. The air pipe passes through the flipping frame and is fixedly connected to it.

[0021] Preferably, the feeding box is further provided with a pushing component;

[0022] The feeding assembly includes a cylinder three fixedly connected to one side of the outer wall of the feeding box. A push rod is fixedly connected to the piston end of the cylinder three. A strip-shaped through hole is provided on one side of the feeding box for the push rod to pass through.

[0023] Preferably, a sliding groove ring is fixedly connected to the lower end of the connecting rod, and an arc-shaped block is slidably connected to the sliding groove of the sliding groove ring. Two connecting rods are rotatably arranged on one side of the arc-shaped block, a connecting rod is rotatably arranged at one end of the connecting rods, and a connecting block is rotatably arranged at one end of the connecting rods. A cylinder is fixedly connected to one side of the lower end face of the connecting block, and a top block is fixedly connected to the piston end of the cylinder. A through hole is provided on one side of the feeding plate for the top block to pass through.

[0024] Preferably, a second gear is rotatably mounted on one side of the arc-shaped block, and the second gear meshes with the toothed block on the outer ring of the sliding groove ring. A fifth motor is fixedly connected to one side of the upper end face of the arc-shaped block, and 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 upper end face of the arc-shaped block, and the output end of the fourth motor is fixedly connected to one end of the second connecting rod.

[0025] The beneficial effects of this invention are as follows:

[0026] 1. The automatic seam-finding welding machine for steel drums described in this invention utilizes a drum body loading component, a drum lid loading component, a drum body transfer component, and a drum lid transfer component. This allows multiple drum lids to be precisely spliced ​​sequentially to the drum body before welding, eliminating the need for manual loading of lids and bodies and reducing labor intensity. Furthermore, compared to using robotic arms for loading, this method transforms the previously haphazardly piled drum bodies and lids into a neatly arranged state. The electric chuck and suction cup move only along a preset path to grip the drum body and lid, reducing gripping difficulty. Moreover, the seam between the drum body and lid is precisely aligned with the welding torch, thus autonomously completing the seam-finding operation, which improves the efficiency and stability of the entire welding process.

[0027] 2. The automatic seam-finding welding machine for steel drums described in this invention utilizes a pushing assembly. During the ascent of the lifting plate and telescopic plate, when the distance between the upper surface of both plates and the push rod is equal to the diameter of the drum body, cylinder three drives the push rod to move, causing it to pass through the strip-shaped through hole on the loading box. If the drum body stands upright on the lifting plate and telescopic plate, the push rod will push it down, and then the lifting plate will continue to rise. This ensures that all drum bodies that slide onto the conveyor belt are laid flat, avoiding the situation where the drum body stands upright on the conveyor belt, thus affecting subsequent normal clamping.

[0028] 3. The automatic seam-finding welding machine for steel drums described in this invention allows the drum lid to move when it is in a funnel-shaped structure. This is achieved by driving the top block through the through holes on the feed plate and squeezing the elastic cloth, until the drum lid can smoothly enter the pipe opening, thus ensuring the normal positioning of the drum lid in the subsequent process. Attached Figure Description

[0029] The invention will now be further described with reference to the accompanying drawings.

[0030] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0031] Figure 2 This is a schematic diagram of the three-dimensional structure of the conveyor belt.

[0032] Figure 3 This is a three-dimensional structural diagram of the feeding box.

[0033] Figure 4This is a three-dimensional structural diagram of a lead screw guide rail;

[0034] Figure 5 This is a schematic diagram of a three-dimensional structure of a fixed ring;

[0035] Figure 6 yes Figure 5 Enlarged view of a portion of point A in the middle;

[0036] Figure 7 This is a schematic diagram of the three-dimensional structure of the material cutting plate.

[0037] Figure 8 yes Figure 7 Enlarged view of a section at point B in the middle;

[0038] Figure 9 yes Figure 7 Enlarged view of a section at point C;

[0039] Figure 10 yes Figure 7 Enlarged view of a section at point D;

[0040] Figure 11 This is a schematic diagram of the three-dimensional structure at the rotating ring;

[0041] Figure 12 This is a schematic diagram of the three-dimensional structure at the top block;

[0042] Figure 13 This is a three-dimensional structural diagram of the flipping frame;

[0043] Figure 14 This is a schematic diagram of the three-dimensional structure at the mounting plate.

[0044] Figure 15 This is a schematic diagram of the three-dimensional structure of the two fixed rings.

[0045] In the diagram: 1. Base; 2. Horizontal transfer frame; 3. Gear ring; 4. Fixed ring 1; 5. Rotating ring; 6. Feeding box; 7. Conveyor belt; 8. Frame; 9. Cylinder 1; 10. Adjusting plate; 11. Cylinder 2; 12. Placement plate; 13. Push rod; 14. Cylinder 3; 15. Lifting plate; 16. Telescopic plate; 17. Cylinder 4; 18. Lead screw guide rail 1; 19. Lead screw guide rail 2; 20. Mounting plate; 21. Cylinder 5; 22. Fixed ring 2; 23. Motor 1; 24. Gear 1; 25. Welding torch; 26. Cylinder 6; 27. Lifting plate 1; 28. Lead screw guide rail 3; 29. ​​Adjusting frame; 30. Electric chuck; 31. Motor 2; 32. Lead screw guide rail 4 33. Lead screw guide rail five; 34. Lifting plate two; 35. Motor three; 36. Tilting frame; 37. Vacuum pump; 38. Air pipe; 39. Suction cup; 40. Feeding plate; 41. Radial rod; 42. Elastic cloth; 43. Connecting rod one; 44. Connecting rod; 45. Baffle; 46. Arc block; 47. Motor four; 48. Motor five; 49. Cylinder seven; 50. Gear two; 51. Sliding groove ring; 52. Threaded rod; 53. Motor six; 54. Connecting rod two; 55. Connecting rod three; 56. Connecting block; 57. Cylinder eight; 58. Top block; 59. Lead screw guide rail six; 60. Slider; 61. Clamping block; 62. Sliding rod; 63. Infrared sensor; 64. Cylinder nine. Detailed Implementation

[0046] 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.

[0047] Please refer to Figures 1-15 The present invention provides a technical solution: an automatic seam-finding welding machine for steel drums, including a base 1, on which a circumferential seam welding assembly is provided;

[0048] The circumferential welding assembly includes a second fixed ring 22 fixedly connected to one side of the upper end face of the base 1. A toothed ring 3 is rotatably provided on the inner ring of the second fixed ring 22, and a welding torch 25 is slidably connected to one side of the toothed ring 3.

[0049] The base 1 is also equipped with a barrel loading assembly;

[0050] The barrel loading assembly includes a frame 8 fixedly connected to one side of the upper surface of the base 1. A conveyor belt 7 is installed on the frame 8. A loading box 6 is fixedly connected to one side of the upper surface of the base 1. One side of the upper end of the loading box 6 is attached to one side of the frame 8. A placement plate 12 is slidably connected to one side of the loading box 6. A screw guide rail 18 is installed on one side of the loading box 6. A lifting plate 15 is slidably installed on the screw guide rail 18. A telescopic plate 16 is inserted into and slidably connected to one side of the lifting plate 15. An infrared sensor 63 is fixedly connected to one side of the upper end of the frame 8.

[0051] The base 1 is also equipped with a bucket lid feeding component;

[0052] The bucket lid feeding assembly includes a fixing ring 4 fixedly connected to one side of the upper end face of the base 1. The fixing ring 4 has multiple radial rods 41 evenly distributed and slidably connected in the radial direction. One end of each radial rod 41 is fixedly connected to a feeding plate 40. An elastic cloth 42 is fixedly connected between two adjacent feeding plates 40. The multiple feeding plates 40 and the elastic cloth 42 cooperate to form a funnel-shaped structure. Multiple connecting rods 44 are evenly distributed and fixedly connected in the radial direction on the lower end face of the fixing ring 4.

[0053] In this embodiment, as Figures 2-5 , Figures 7-9 , Figure 11 , Figures 13-15 As shown, a cylinder 26 is fixedly connected to one side of the gear ring 3. The piston end of the cylinder 26 is fixedly connected to one end of the welding torch 25. A gear 24 is rotatably mounted on one side of the fixing ring 22. The gear 24 meshes with the tooth blocks on the outer ring of the gear ring 3. A motor 23 is fixedly connected to one side of the fixing ring 22. The output end of the motor 23 is fixedly connected to the gear 24.

[0054] The base 1 is also equipped with a barrel transfer component;

[0055] The barrel transfer assembly includes a screw guide rail 219 mounted on one side of the upper surface of the base 1. A mounting plate 20 is slidably mounted on the screw guide rail 219. Two sliding rods 62 are slidably connected to the upper side of the mounting plate 20. A lifting plate 1 27 is fixedly connected to the upper end of the sliding rods 62. A screw guide rail 3 28 is mounted on the lifting plate 1 27. An adjusting frame 29 is slidably mounted on the screw guide rail 3 28. An electric chuck 30 is rotatably mounted on the upper end of the adjusting frame 29. A cylinder 5 21 is fixedly connected to one side of the mounting plate 20. The piston end of the cylinder 5 21 is fixedly connected to one side of the bottom of the lifting plate 1 27. A motor 2 31 is fixedly connected to one side of the upper end of the adjusting frame 29. The output end of the motor 2 31 is fixedly connected to one side of the electric chuck 30.

[0056] Two cylinders 17 are fixedly connected to one side of the lifting plate 15. The piston end of cylinder 17 is fixedly connected to one side of the telescopic plate 16. Cylinder 9 is fixedly connected to one side of the upper end of the frame 8. An adjusting plate 10 is fixedly connected to the piston end of cylinder 9. Cylinder 11 is fixedly connected to one side of the feeding box 6. The piston end of cylinder 11 is fixedly connected to one side of the placement plate 12.

[0057] A rotating ring 5 is rotatably mounted on one side of the outer ring of the fixed ring 4. A connecting rod 43 is rotatably mounted on one end of the radial rod 41. One end of the connecting rod 43 is rotatably mounted on the rotating ring 5. A threaded rod 52 is threadedly connected to one end of the radial rod 41. One end of the threaded rod 52 is rotatably mounted on the connecting rod 44. A motor 53 is fixedly connected to one end of the connecting rod 44. The output end of the motor 53 is fixedly connected to one end of the threaded rod 52.

[0058] A cylinder 64 is fixedly connected to the lower end of one side of the feed plate 40. A baffle 45 is fixedly connected to the piston end of the cylinder 64. A lead screw guide rail 59 is installed on one side of both feed plates 40. A slider 60 is slidably arranged on the lead screw guide rail 59. A cylinder 49 is fixedly connected to one side of the slider 60. A clamping block 61 is fixedly connected to the piston end of the cylinder 49. A through hole is provided on the feed plate 40 for the clamping block 61 to pass through.

[0059] The base 1 is also equipped with a bucket lid transfer component;

[0060] The bucket lid transfer assembly includes a screw guide rail 4 32 installed on one side of the upper surface of the base 1. A transverse frame 2 is slidably mounted on the screw guide rail 4 32. A screw guide rail 5 33 is installed on one side of the transverse frame 2. A lifting plate 2 34 is slidably mounted on the screw guide rail 5 33. A flipping frame 36 is rotatably mounted on one side of the lifting plate 2 34. A motor 35 is fixedly connected to one end of the lifting plate 2 34. The output end of the motor 35 is fixedly connected to one end of the flipping frame 36. A vacuum pump 37 is fixedly connected to one side of the flipping frame 36. An air pipe 38 is connected to the air inlet of the vacuum pump 37. A suction cup 39 is provided at one end of the air pipe 38. The air pipe 38 passes through the flipping frame 36 and is fixedly connected to it.

[0061] Specifically, in existing technology, when welding the lid and body of a steel drum, the lid and body must first be fixed in the appropriate position and fitted together before welding the joint. However, when there are a large number of lids and bodies to be welded, operators need to frequently fix the lids and bodies in the appropriate position, resulting in high labor intensity. While using a robotic arm to replace operators for loading lids and bodies is feasible, if the lids and bodies are piled up haphazardly, the robotic arm will struggle to accurately grasp them according to the preset path, thus affecting the normal progress of the welding work.

[0062] Therefore, in order to solve the above problems, the working principle of this embodiment is as follows:

[0063] Firstly, it is used for bucket lids and bucket bodies of the same specifications from the same batch. Since multiple feed plates 40 and elastic cloth 42 cooperate to form a funnel-shaped structure, the radial rods 41 can be driven to slide on the fixed ring 4 by the rotation of the threaded rod 52 driven by the motor 6 53. Furthermore, when one radial rod 41 moves, all radial rods 41 move synchronously under the transmission of the connecting rod 43 and the rotating ring 5. This allows the feed plates 40 to move, and simultaneously, the size of the elastic cloth 42 changes according to the position of the feed plates 40. This allows adjustment of the size of the entire funnel-shaped structure, ensuring that the diameter of the lower pipe of this funnel-shaped structure is equal to the diameter of the bucket lid.

[0064] Then, based on the diameter of the barrel, cylinder 17 drives the telescopic plate 16 to move, causing the telescopic plate 16 to slide relative to the lifting plate 15. Since the lifting plate 15 and the telescopic plate 16 cooperate to form a rectangular plane, the area of ​​the rectangular plane can be adjusted by driving the telescopic plate 16 to make the width of the rectangular plane equal to the diameter of the barrel. When the telescopic plate 16 moves, the placement plate 12 will also move under the action of cylinder 11, keeping the placement plate 12 in contact with the telescopic plate 16. Then, cylinder 9 drives the adjusting plate 10 to move. The adjusting plate 10 and the frame 8 cooperate to form a feeding channel on the conveyor belt 7, making the width of the feeding channel equal to the diameter of the barrel.

[0065] After the above adjustments are completed, multiple barrels and their lids are placed on the placement plate 12 and inside the funnel-shaped structure, respectively. When the barrels are on the placement plate 12, the lifting plate 15 is driven to move up and down reciprocally via the lead screw guide rail 18, and the upper surface of the lifting plate 15 is initially aligned with the upper surface of the placement plate 12. Because the lifting plate 15 and the placement plate 12 are tilted, the barrels will slide onto the lifting plate 15 and the telescopic plate 16. Furthermore, since the width of the rectangular plane formed by the lifting plate 15 and the telescopic plate 16 is equal to the diameter of the barrel, the lifting plate 15 and the telescopic plate 16 will lift the barrels, and the barrels will not be placed side by side along the width direction of the rectangular plane, but only along the length direction of the rectangular plane. Furthermore, the length of the barrel is usually greater than its diameter. Therefore, if any end of the barrel is placed on the lifting plate 15 and the telescopic plate 16, it will fall off the upper surface of the lifting plate 15 and the telescopic plate 16 due to instability when they rise. Thus, the barrels that can be lifted by the lifting plate 15 and the telescopic plate 16 are all parallel to the length direction of the lifting plate 15. When the edge of the lifting plate 15 is aligned with the surface of the conveyor belt 7, the barrels in the rectangular plane will slide onto the conveyor belt 7, and due to the limiting effect of the adjusting plate 10, the barrels on the conveyor belt 7 will be arranged in a transverse manner.

[0066] When the barrel moves to the end of the conveyor belt 7, the infrared sensor 63 detects a signal. Then the conveyor belt 7 stops operating. Since the electric chuck 30 can adjust the position of the x, y, and z axes with the cooperation of the lead screw guide rail 2 19, cylinder 5 21, and lead screw guide rail 3 28, the clamping end of the electric chuck 30 can be precisely inserted into the inner cavity of the barrel and fixed in place. Subsequently, the clamped barrel is rotated 180 degrees by the motor 2 31, and the barrel's axis is aligned with the axis of the gear ring 3.

[0067] When the lid is in the funnel-shaped structure composed of the feed plate 40 and the elastic cloth 42, since only one lid can pass through the funnel-shaped pipe opening at a time, the lids will be arranged flat inside the pipe cavity, and will be blocked by the baffle 45. Then, according to the thickness of the lid, the height of the clamping block 61 is adjusted by the lead screw guide six 59 so that the clamping block 61 is aligned with the lid that is in contact with the baffle 45. Then, driven by the cylinder seven 49, the clamping block 61 clamps the lid. Subsequently, the baffle 45 can be driven away from the bottom of the feed plate 40 by the cylinder nine 64. At this time, the suction cup 39 is aligned with the bottom of the lid, and the axis of the suction cup 39 coincides with the axis of the lid. Then, the suction cup 39 is driven by the lead screw guide five 33 to rise and fit against the bottom of the lid. Then, the vacuum pump 37 is started to adsorb and fix the lid by negative pressure adsorption. Subsequently, clamp 61 releases the lid, and suction cup 39 removes the lid from the pipe. As the lid is removed, clamp 61 must first move upwards to hold the lid in place and prevent it from falling out. Then, motor 35 rotates the lid 90 degrees, aligning its axis with the gear ring 3. Driven by lead screw guide 4 32, it moves laterally, bringing the lid into contact with the barrel body. At this point, cylinder 6 26 moves the welding torch 25, aligning it with the joint between the lid and the barrel body. The welding torch 25 is then activated. Simultaneously, motor 1 23 drives gear 1 24 to rotate the gear ring 3, allowing the welding torch 25 to weld along the joint between the lid and the barrel body. Repeating this process allows multiple lids and barrel bodies to be precisely joined sequentially before welding, eliminating the need for manual loading of lids and barrel bodies and reducing worker workload. Furthermore, compared to using robotic arms for loading, this method transforms the previously messy stack of barrels and lids into a neatly arranged state. The electric chuck 30 and suction cup 39 can pick up the barrel and lid simply by moving along a preset path, reducing the difficulty of picking them up. Moreover, the seam between the barrel and lid is precisely aligned with the welding torch, thus autonomously completing the operation of finding the butt joint, which helps to improve the efficiency and stability of the entire welding process.

[0068] In this embodiment, as Figure 3 , Figure 4 , Figure 6 , Figure 10 , Figure 12 As shown, a pusher assembly is also provided on the feeding box 6;

[0069] The feeding assembly includes a cylinder 3 14 fixedly connected to one side of the outer wall of the feeding box 6. A push rod 13 is fixedly connected to the piston end of the cylinder 3 14. A strip-shaped through hole is provided on one side of the feeding box 6 for the push rod 13 to pass through.

[0070] A sliding ring 51 is fixedly connected to the lower end of the connecting rod 44. An arc-shaped block 46 is slidably connected to the sliding ring 51 at the sliding groove. Two connecting rods 54 are rotatably arranged on one side of the arc-shaped block 46. A connecting rod 55 is rotatably arranged at one end of the connecting rod 54. A connecting block 56 is rotatably arranged at one end of the connecting rod 55. A cylinder 57 is fixedly connected to one side of the lower end face of the connecting block 56. A top block 58 is fixedly connected to the piston end of the cylinder 57. A through hole is provided on one side of the feeding plate 40 for the top block 58 to pass through.

[0071] A gear 2 50 is rotatably mounted on one side of the arc-shaped block 46. The gear 2 50 meshes with the toothed block on the outer ring of the sliding groove ring 51. A motor 5 48 is fixedly connected to one side of the upper end face of the arc-shaped block 46. The output end of the motor 5 48 is fixedly connected to the gear 2 50. A motor 47 is fixedly connected to one side of the upper end face of the arc-shaped block 46. The output end of the motor 47 is fixedly connected to one end of the connecting rod 2 54.

[0072] Specifically, in the above embodiments, although the bucket lids and bucket bodies can be arranged for clamping, the bucket body may be in an upright position when it is on the lifting plate 15 and the telescopic plate 16. This means that the bucket body moving onto the conveyor belt 7 is not in a flat position, affecting subsequent clamping. Furthermore, when multiple bucket lids converge into the funnel-shaped pipe, they are prone to getting stuck at the pipe opening, which also affects the subsequent proper fixing of the bucket lids.

[0073] Therefore, to solve the above problems, in this embodiment, during the rising process of the lifting plate 15 and the telescopic plate 16, when the distance between the upper surface of both and the push rod 13 is equal to the diameter of the barrel, the cylinder 14 drives the push rod 13 to move, causing it to pass through the strip-shaped through hole on the loading box 6. If the barrel is standing on the lifting plate 15 and the telescopic plate 16, the push rod 13 will push it down, and then the lifting plate 15 will continue to rise. This ensures that all barrels that slide onto the conveyor belt 7 are in a flat position, avoiding the situation where the barrel is standing on the conveyor belt 7, which would affect the subsequent normal clamping.

[0074] After the orientation adjustment of the feeding plate 40 is completed, the motor 47 drives the connecting rods 54 and 55 to rotate, adjusting the position of the top block 58 so that it aligns with the through hole on the feeding plate 40 through which the top block 58 can pass. When the lid is in the funnel-shaped structure, the motor 48 drives the gear 50 to rotate, causing the arc-shaped block 46 to move in a circular motion. Each time the top block 58 aligns with a through hole, the cylinder 57 drives the top block 58 to rise, allowing it to pass through the through hole. Since the through hole is located at the pipe opening, if the lid is blocked at the pipe opening, the top block 58 will lift it up. Furthermore, because the elastic cloth 42 is elastic, the top block 58 can also compress the elastic cloth 42 to form a protrusion. By driving the top block 58 through each through hole and compressing the elastic cloth 42, the lid stuck at the pipe opening can be moved until it can smoothly enter the pipe opening, thus ensuring the proper positioning of the lid afterwards.

[0075] Working Principle: Since multiple feeding plates 40 and elastic cloth 42 cooperate to form a funnel-shaped structure, the radial rods 41 can be driven to slide on the fixed ring 4 by the rotation of the threaded rod 52 driven by the motor 6 53. Furthermore, when one radial rod 41 moves, all radial rods 41 move synchronously under the transmission of the connecting rod 43 and the rotating ring 5. This allows the feeding plates 40 to move, and the size of the elastic cloth 42 will change according to the position of the feeding plates 40. This allows adjustment of the size of the entire funnel-shaped structure, ensuring that the diameter of the lower pipe of the funnel-shaped structure is equal to the diameter of the bucket lid. Then, based on the diameter of the bucket body, the telescopic plate 16 is moved by the cylinder 4 17, causing the telescopic plate 16 to slide relative to the lifting plate 15. Since the lifting plate 15 and the telescopic plate 16 cooperate to form a rectangular plane, the area of ​​the rectangular plane can be adjusted by moving the telescopic plate 16. The width of the rectangular plane is made equal to the diameter of the barrel. When the telescopic plate 16 moves, the placement plate 12 also moves under the action of cylinder 11, keeping the placement plate 12 in contact with the telescopic plate 16. Then, cylinder 9 drives the adjusting plate 10 to move. The adjusting plate 10 and the frame 8 cooperate to form a feeding channel on the conveyor belt 7, making the width of the feeding channel equal to the diameter of the barrel. After the above adjustment is completed, multiple barrels and barrel lids are placed on the placement plate 12 and inside the funnel-shaped structure, respectively. When the barrel is on the placement plate 12, the lifting plate 15 is driven to move up and down reciprocally via the lead screw guide rail 18, and the upper surface of the lifting plate 15 is initially aligned with the upper surface of the placement plate 12. Because the lifting plate 15 and the placement plate 12 are tilted, the barrel will slide onto the lifting plate 15 and the telescopic plate 16. Furthermore, since the width of the rectangular plane formed by the lifting plate 15 and the telescopic plate 16 is equal to the diameter of the barrel, the lifting plate 15 and the telescopic plate 16 will lift the barrel, and the barrels will not be placed side by side along the width direction of the rectangular plane, but only along the length direction of the rectangular plane. In addition, the length of the barrel is usually greater than its diameter, so if any end of the barrel is placed on the lifting plate 15 and the telescopic plate 16, it will fall off the upper surface of the lifting plate 15 and the telescopic plate 16 due to instability when the lifting plate 15 and the telescopic plate 16 rise. Therefore, the barrels that can be lifted by the lifting plate 15 and the telescopic plate 16 are all parallel to the length direction of the lifting plate 15. When the edge of the lifting plate 15 is aligned with the surface of the conveyor belt 7, the barrels on the rectangular plane will slide onto the conveyor belt 7, and due to the limiting of the adjusting plate 10, the barrels on the conveyor belt 7 will be arranged in a horizontal state. When the barrels move with the conveyor belt 7 to the end of the conveyor belt 7, the infrared sensor 63 detects a signal. Then the conveyor belt 7 stops operating. Since the electric chuck 30 can adjust the position of the x, y, and z axes with the cooperation of the lead screw guide rail 2 19, cylinder 5 21, and lead screw guide rail 3 28, the clamping end of the electric chuck 30 can be accurately inserted into the inner cavity of the barrel and fixed therein. Subsequently, the clamped barrel is rotated 180 degrees by the motor 2 31, and the barrel axis is aligned with the axis of the gear ring 3.When the lid is in the funnel-shaped structure composed of the feed plate 40 and the elastic cloth 42, since only one lid can pass through the funnel-shaped pipe opening at a time, the lids will be arranged flat inside the pipe cavity, and will be blocked by the baffle 45. Then, according to the thickness of the lid, the height of the clamping block 61 is adjusted by the lead screw guide six 59 so that the clamping block 61 is aligned with the lid that is in contact with the baffle 45. Then, driven by the cylinder seven 49, the clamping block 61 clamps the lid. Subsequently, the baffle 45 can be driven away from the bottom of the feed plate 40 by the cylinder nine 64. At this time, the suction cup 39 is aligned with the bottom of the lid, and the axis of the suction cup 39 coincides with the axis of the lid. Then, the suction cup 39 is driven by the lead screw guide five 33 to rise and fit against the bottom of the lid. Then, the vacuum pump 37 is started to adsorb and fix the lid by negative pressure adsorption. Subsequently, clamp 61 releases the lid, and suction cup 39 removes the lid from the pipe. As the lid is removed, clamp 61 must first move upwards to hold the lid in place and prevent it from falling out. Then, motor 35 rotates the lid 90 degrees, aligning its axis with the gear ring 3. Driven by lead screw guide 4 32, it moves laterally, bringing the lid into contact with the barrel body. At this point, cylinder 6 26 moves the welding torch 25, aligning it with the joint between the lid and the barrel body. The welding torch 25 is then activated. Simultaneously, motor 1 23 drives gear 1 24 to rotate the gear ring 3, allowing the welding torch 25 to weld along the joint between the lid and the barrel body. Repeating this process allows multiple lids and barrel bodies to be precisely joined sequentially before welding, eliminating the need for manual loading of lids and barrel bodies and reducing worker workload. Furthermore, compared to using robotic arms for loading, this method transforms the previously messy stack of barrels and lids into a neatly arranged state. The electric chuck 30 and suction cup 39 can grip the barrels and lids simply by moving along a preset path, reducing the difficulty of gripping. Moreover, the seam between the barrel and lid is precisely aligned with the welding torch, thus autonomously completing the seam-finding operation, which helps improve the efficiency and stability of the entire welding process. During the ascent of the lifting plate 15 and telescopic plate 16, when the distance between their upper surfaces and the push rod 13 is equal to the diameter of the barrel, the cylinder 14 drives the push rod 13 to move, causing it to pass through the strip-shaped through hole on the loading box 6. If the barrel is standing upright on the lifting plate 15 and telescopic plate 16, the push rod 13 will push it down, and then the lifting plate 15 will continue to rise, ensuring that all barrels sliding onto the conveyor belt 7 are laid flat, avoiding the situation where barrels standing upright on the conveyor belt 7 would affect subsequent normal gripping. After the orientation adjustment of the lower plate 40 is completed, the motor 47 drives the connecting rod 2 54 and connecting rod 3 55 to rotate, adjusting the position of the top block 58 so that the top block 58 is aligned with the through hole on the lower plate 40 through which the top block 58 can pass.When the lid is in the funnel-shaped structure, the arc-shaped block 46 is driven to rotate in a circular motion by the motor 48 driving the gear 50. Each time the top block 58 aligns with a through hole, the cylinder 57 drives the top block 58 to rise, allowing it to pass through the through hole. Since the through hole is located at the pipe opening, if the lid is blocking the pipe opening, the top block 58 will lift it up. Furthermore, because the elastic cloth 42 is elastic, the top block 58 can also compress the elastic cloth 42, causing it to bulge. By driving the top block 58 through each through hole and compressing the elastic cloth 42, the lid stuck at the pipe opening can be moved until it can smoothly enter the pipe opening, thus ensuring the proper positioning of the lid afterwards.

[0076] 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. An automatic seam-finding welding machine for steel drums, comprising a base (1), characterized in that: The base (1) is provided with a circumferential weld assembly; The circumferential welding assembly includes a fixed ring two (22) fixedly connected to one side of the upper end face of the base (1), and a toothed ring (3) is rotatably provided on the inner ring of the fixed ring two (22), and a welding gun (25) is slidably connected to one side of the toothed ring (3). The base (1) is also provided with a barrel loading assembly; The barrel loading assembly includes a frame (8) fixedly connected to one side of the upper end face of the base (1). A conveyor belt (7) is provided on the frame (8). A loading box (6) is fixedly connected to one side of the upper end face of the base (1). One side of the upper end of the loading box (6) is attached to one side of the frame (8). A placement plate (12) is slidably connected to one side of the loading box (6). A screw guide rail (18) is installed on one side of the loading box (6). A lifting plate (15) is slidably provided on the screw guide rail (18). A telescopic plate (16) is inserted into and slidably connected to one side of the lifting plate (15). An infrared sensor (63) is fixedly connected to one side of the upper end of the frame (8). The base (1) is also provided with a bucket lid feeding assembly; The bucket lid feeding assembly includes a fixing ring (4) fixedly connected to one side of the upper end face of the base (1). The fixing ring (4) is evenly distributed radially and slidably connected to multiple radial rods (41). One end of the radial rod (41) is fixedly connected to a feeding plate (40). An elastic cloth (42) is fixedly connected between two adjacent feeding plates (40). The multiple feeding plates (40) and the elastic cloth (42) cooperate with each other to form a funnel-shaped structure. The lower end face of the fixing ring (4) is evenly distributed radially and fixedly connected to multiple connecting rods (44). The base (1) is also provided with a bucket body transfer assembly. The barrel transfer assembly includes a screw guide rail two (19) installed on one side of the upper end face of the base (1). A mounting plate (20) is slidably arranged on the screw guide rail two (19). Two sliding rods (62) are slidably connected to the upper side of the mounting plate (20). A lifting plate one (27) is fixedly connected to the upper end of the sliding rods (62). A screw guide rail three (28) is installed on the lifting plate one (27). An adjusting frame (29) is slidably arranged on the screw guide rail three (28). An electric chuck (30) is rotatably arranged on the upper end of the adjusting frame (29). A cylinder five is fixedly connected to one side of the mounting plate (20). 21), the piston end of cylinder five (21) is fixedly connected to one side of the bottom of lifting plate one (27), motor two (31) is fixedly connected to one side of the upper end of the adjusting frame (29), the output end of motor two (31) is fixedly connected to one side of the electric chuck (30), two cylinder four (17) are fixedly connected to one side of the lifting plate (15), the piston end of cylinder four (17) is fixedly connected to one side of the telescopic plate (16), cylinder one (9) is fixedly connected to one side of the upper end of the frame (8), the piston end of cylinder one (9) is fixedly connected to the adjusting plate (10), and one side of the loading box (6) is fixedly connected to Cylinder 2 (11), the piston end of cylinder 2 (11) is fixedly connected to one side of the placement plate (12), a rotating ring (5) is rotatably provided on one side of the outer ring of the fixing ring 1 (4), a connecting rod 1 (43) is rotatably provided on one end of the radial rod (41), and one end of the connecting rod 1 (43) is rotatably provided on the rotating ring (5), a threaded rod (52) is threadedly connected to one end of the radial rod (41) on one side, and one end of the threaded rod (52) is rotatably provided on the connecting rod (44), and a motor 6 (53) is fixedly connected to one end of the connecting rod (44) on one side, and the output end of the motor 6 (53) is connected to the threaded rod (5). 2) One end is fixedly connected, and a cylinder nine (64) is fixedly connected to the lower end of the feeding plate (40) on one side. A baffle (45) is fixedly connected to the piston end of the cylinder nine (64). A screw guide six (59) is installed on one side of the feeding plate (40) on both sides. A slider (60) is slidably arranged on the screw guide six (59). A cylinder seven (49) is fixedly connected to one side of the slider (60). A clamping block (61) is fixedly connected to the piston end of the cylinder seven (49). A through hole is provided on the feeding plate (40) for the clamping block (61) to pass through. A bucket lid transfer assembly is also provided on the base (1). The bucket lid transfer assembly includes a screw guide rail four (32) installed on one side of the upper end face of the base (1), a transverse frame (2) is slidably arranged on the screw guide rail four (32), a screw guide rail five (33) is installed on one side of the transverse frame (2), a lifting plate two (34) is slidably arranged on the screw guide rail five (33), a flipping frame (36) is rotatably arranged on one side of the lifting plate two (34), a motor three (35) is fixedly connected to one end of the lifting plate two (34), the output end of the motor three (35) is fixedly connected to one end of the flipping frame (36), a vacuum pump (37) is fixedly connected to one side of the flipping frame (36), the vacuum pump (37) is connected to an air pipe (38), a suction cup (39) is provided at one end of the air pipe (38), and the air pipe (38) passes through the flipping frame (36) and is fixedly connected to it.

2. The automatic seam-finding welding machine for steel drums according to claim 1, characterized in that: A cylinder six (26) is fixedly connected to one side of the gear ring (3). The piston end of the cylinder six (26) is fixedly connected to one end of the welding torch (25). A gear one (24) is rotatably arranged on one side of the fixing ring two (22). The gear one (24) meshes with the tooth block of the outer ring of the gear ring (3). A motor one (23) is fixedly connected to one side of the fixing ring two (22). The output end of the motor one (23) is fixedly connected to the gear one (24).

3. The automatic seam-finding welding machine for steel drums according to claim 1, characterized in that: The feeding box (6) is also equipped with a pushing component; The feeding assembly includes a cylinder three (14) fixedly connected to one side of the outer wall of the feeding box (6). The piston end of the cylinder three (14) is fixedly connected to a push rod (13). A strip-shaped through hole is provided on one side of the feeding box (6) for the push rod (13) to pass through.

4. The automatic seam-finding welding machine for steel drums according to claim 1, characterized in that: The lower end of the connecting rod (44) is fixedly connected to a sliding ring (51), and an arc-shaped block (46) is slidably connected to the sliding groove of the sliding ring (51). Two connecting rods (54) are rotatably arranged on one side of the arc-shaped block (46). A connecting rod (55) is rotatably arranged at one end of the connecting rod (54). A connecting block (56) is rotatably arranged at one end of the connecting rod (55). A cylinder (57) is fixedly connected to one side of the lower end face of the connecting block (56). A top block (58) is fixedly connected to the piston end of the cylinder (57). A through hole is provided on one side of the feeding plate (40) for the top block (58) to pass through.

5. The automatic seam-finding welding machine for steel drums according to claim 4, characterized in that: A gear two (50) is rotatably mounted on one side of the arc-shaped block (46). The gear two (50) meshes with the toothed block on the outer ring of the sliding groove ring (51). A motor five (48) is fixedly connected to one side of the upper end face of the arc-shaped block (46). The output end of the motor five (48) is fixedly connected to the gear two (50). A motor four (47) is fixedly connected to one side of the upper end face of the arc-shaped block (46). The output end of the motor four (47) is fixedly connected to one end of the connecting rod two (54).

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