A continuous loading and unloading device and method for a high-frequency thick-wall welding wire unit

Abstract

The present invention discloses a continuous loading and unloading device and loading and unloading method of a high-frequency thick-walled welding wire unit, belonging to the field of welding equipment, including a storage box and a welding gun, a discharge port is provided on the side surface of the storage box near the lower position, and a loading and unloading assembly is provided on the side of the storage box located at the discharge port, and the loading and unloading assembly is used for automatically loading and unloading materials for welding with the welding gun, and the loading and unloading assembly includes a limit plate, a first limit block is provided on the left side of the limit plate, and a second limit block is provided on the right side of the limit plate, and the upper end surfaces of the limit plate, the first limit block and the second limit block are all inclined, and the inclination directions of the three are the same, and a first cylinder is provided below the limit plate. The present invention can realize automatic unloading and automatic loading at the same time, avoiding the problem of manual handling of thick-walled steel pipes, and also avoiding the problem of workers being injured by manual handling of thick-walled steel pipes.

Description

Technical Field

[0001] The invention relates to the field of welding equipment, and more specifically to a continuous loading and unloading device and a loading and unloading method for a high-frequency thick-wall welding wire unit. Background Art

[0002] High-frequency welding machine is a kind of equipment used for welding various metal materials. High-frequency welding machine is based on the electromagnetic induction phenomenon of high-frequency current. High-frequency current is generated by high-frequency generator to generate high heat on the surface of pipe fittings, thereby achieving welding. This welding method is particularly suitable for thick-walled steel pipes, because high-frequency current can penetrate deep into the steel pipe, achieve uniform heating, and ensure the quality of the welded joint.

[0003] When it is necessary to weld a flange to a thick-walled steel pipe, it is usually done with the help of special tooling equipment. Workers first accurately connect the thick-walled steel pipe with the flange and place it on the tooling for firm fixation so that they can efficiently use the high-frequency welder for welding operations. However, after completing the welding, workers need to manually remove these bulky components from the tooling.

[0004] Since thick-walled steel pipes are relatively heavy, workers will not only consume a lot of physical strength when performing frequent loading and unloading work, but may also reduce work efficiency. In addition, if they are not careful during the operation, safety accidents may occur that may injure workers.

[0005] Therefore, it is necessary to propose a continuous loading and unloading device and method for a high-frequency thick-walled wire welding unit to solve the above problems. Summary of the invention

[0006] In view of the problems existing in the prior art, the purpose of the present invention is to provide a continuous loading and unloading device and method for a high-frequency thick-walled welding wire unit, which can realize automatic unloading and automatic loading at the same time, avoiding the problem of manual handling of thick-walled steel pipes, and also avoiding the problem of workers being injured by manual handling of thick-walled steel pipes.

[0007] To solve the above problems, the present invention adopts the following technical solutions.

[0008] A continuous loading and unloading device for a high-frequency thick-walled welding wire unit comprises a material storage box and a welding gun, a material discharge port is provided at a side surface of the material storage box near a lower position, a loading and unloading assembly is provided on one side of the material storage box located at the material discharge port, the loading and unloading assembly is used for automatically loading and unloading materials to be welded by the welding gun, the loading and unloading assembly comprises a limit plate, a first limit block is provided on the left side of the limit plate, a second limit block is provided on the right side of the limit plate, the upper end surfaces of the limit plate, the first limit block and the second limit block are all inclined, and the inclination directions of the three are the same, a first cylinder is provided below the limit plate, and the first cylinder is used to drive the first limit block and the second limit block to move up and down synchronously;

[0009] The initial positions of the first limit block and the second limit block are both set at the lower position of the limit plate, and the upper end of the second limit block is higher than the upper end of the first limit block, the right end of the limit plate is connected to the first guide plate, the right end of the first guide plate is connected to the arc cover, support columns are set on the front and rear sides of the arc cover, adjacent surfaces of the two groups of support columns are provided with flange grooves, the front and rear ends of the arc cover correspond to the flange grooves, the welding guns are set in two groups, and the two groups of welding guns are respectively set at the openings of the flange grooves.

[0010] Furthermore, the lower ends of the first limit block and the second limit block are fixedly connected to a mounting plate, the mounting plate is located above the first cylinder, the right end of the mounting plate is fixedly connected to two groups of unloading rods, the unloading rod is designed in an L-shaped structure, the upper end of the unloading rod is inclined, and the inclination direction of the unloading rod is the same as the inclination direction of the limit plate, the left end of the limit plate is fixedly connected to a first connecting rod, the left end of the first connecting rod is fixedly connected to a storage box, the two groups of unloading rods are respectively located at the front and rear ends of the arc cover, the initial position of the unloading rod is located below the arc cover, and the right end of the arc cover is connected to a second guide plate.

[0011] Furthermore, a guide plate cover is fixedly connected to the upper end of the support column, and the guide plate cover is designed to be a hollow structure. An opening for materials to pass through is penetrated through the lower surface of the guide plate cover at a position opposite to the flange groove. A guide box is fixedly connected to the side surface of the guide plate cover, and the interior of the guide box is interconnected with the interior of the guide plate cover, and the guide box and the guide plate cover are both arranged to be inclined downward.

[0012] Furthermore, a second connecting rod is fixedly connected to a position near the upper end of the side surface of the first cylinder, a cross bar is fixedly connected to the upper end of the second connecting rod, a first limiting rod is fixedly connected to the left end of the cross bar, and a second limiting rod is fixedly connected to the right end of the cross bar. A flow hole for material to pass through is penetrated on the side wall of the second limiting rod, a first limiting hole for the first limiting rod to enter and exit is penetrated at a position of the lower end wall of the guide plate cover directly opposite to the first limiting rod, two groups of second limiting holes for the second limiting rod to enter and exit are penetrated at a position above the guide plate cover directly opposite to the second limiting rod, the initial position of the first limiting rod is located below the guide plate cover, and the initial position of the upper half of the second limiting rod is located inside the guide plate cover.

[0013] Furthermore, a guide plate is fixedly connected to the inner side wall of the flange groove, and the guide plate is designed in a trapezoidal structure, and the upper end of the guide plate is inclined toward the opening of the flange groove.

[0014] Furthermore, an L-shaped support plate is fixedly connected to the lower surface of the storage box near the discharge port, the mounting plate is arranged on the L-shaped support plate, a slide groove is opened on the side surface of the L-shaped support plate, a slider is slidably connected in the slide groove, and the slider is fixedly connected to the mounting plate.

[0015] Furthermore, a second cylinder is installed on the guide plate cover, a mounting frame is fixedly connected to the lower end of the second cylinder, and the welding gun is installed on the mounting frame.

[0016] Furthermore, a support frame is fixedly connected to the lower surface of the mounting frame, a rotating wheel is installed at the lower end of the supporting frame, and a motor is installed on the side surface of the supporting frame, and the motor is used to drive the rotating wheel to rotate.

[0017] Furthermore, a support rod is fixedly connected to the lower end of the arc-shaped cover, and one end of the support rod away from the arc-shaped cover is fixedly connected to a support column.

[0018] The present invention also provides a continuous loading and unloading method of a high-frequency thick-walled welding wire unit applicable to the continuous loading and unloading device of the high-frequency thick-walled welding wire unit, comprising the following steps:

[0019] S1: Automatic loading: Control the extension and retraction of the first cylinder to drive the first limit block and the second limit block to move up and down. The first limit block and the second limit block move up and down to drive the thick-walled steel pipe to roll into the arc cover. When the first cylinder is extended and retracted, it will also drive the first limit rod and the second limit rod to move up and down. The first limit rod and the second limit rod move up and down to drive the flange to roll into the flange groove;

[0020] S2: Automatic welding: Control the second cylinder to extend so that the welding gun contacts the weld between the thick-walled steel pipe and the flange. Then the motor drives the rotating wheel to rotate. The rotating wheel drives the thick-walled steel pipe to rotate. When the thick-walled steel pipe rotates, it drives the flange to rotate, so that the entire circle of the weld can be contacted by the welding gun. Finally, the welding of the thick-walled steel pipe and the flange is completed.

[0021] S3: Automatic unloading: The first cylinder drives the unloading rod to rise, and the unloading rod will push the welded thick-walled steel pipe to the top of the arc cover. The thick-walled steel pipe will roll along the inclined surface of the unloading rod to the first guide plate and continue to roll downward.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] (1) This solution controls the first limit block, the second limit block and the first limit rod, the second limit rod to move up and down through the extension and retraction of the first cylinder. The first limit block and the second limit block move up and down to realize automatic loading of thick-walled steel pipes. The first limit rod and the second limit rod move up and down to realize automatic loading along with the flange. In addition, the unloading rod is also driven to move up and down during loading. When the unloading rod moves upward, the welded thick-walled steel pipe is unloaded, realizing automatic unloading and automatic loading at the same time, avoiding the problem of manual handling of thick-walled steel pipes, and also avoiding the problem of workers being injured by manual handling of thick-walled steel pipes.

[0024] (2) This solution extends the second cylinder of the controller so that the welding gun contacts the weld between the thick-walled steel pipe and the flange. The rotating wheel rotates to drive the thick-walled steel pipe to rotate. When the thick-walled steel pipe rotates, it drives the flange to rotate, so that the entire circle of the weld can be contacted by the welding gun. Finally, the welding of the thick-walled steel pipe and the flange is completed, realizing automated welding, freeing up manpower, and avoiding the problem of burns from electric welding during manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is an appearance view of the overall structure of the present invention;

[0026] Figure 2 It is a structural view of the blanking assembly of the present invention;

[0027] Figure 3 It is a schematic diagram of the structure of the present invention located at the limiting plate;

[0028] Figure 4 It is a schematic diagram of the structure of the present invention located at the mounting plate;

[0029] Figure 5 This is a flow chart of cutting thick-walled steel pipes of the present invention;

[0030] Figure 6 It is a partial view of the guide plate cover of the present invention;

[0031] Figure 7 It is a cross-sectional view of the present invention at the guide plate cover;

[0032] Figure 8 For the present invention Figure 6 Magnified view at A in the middle.

[0033] Description of the numbers in the figure:

[0034] 1. Storage box; 2. Support column; 3. Flange groove; 4. Guide plate cover; 5. Second cylinder; 6. Mounting frame; 7. Welding gun; 8. First cylinder; 9. First limit block; 10. Second limit block; 11. Limit plate; 12. Discharge port; 13. First connecting rod; 14. First guide plate; 15. Arc cover; 16. Second guide plate; 17. L-shaped support plate; 18. Slide; 19. Slider; 20. Mounting plate; 21. Discharge rod; 22. Second connecting rod; 23. Cross bar; 24. First limit rod; 25. Second limit rod; 26. Flow hole; 27. Guide box; 28. Support frame; 29. ​​Motor; 30. Guide plate; 31. First limit hole; 32. Second limit hole; 33. Support rod; 34. Rotating wheel; 35. Thick-walled steel pipe; 36. Flange. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0036] See also Figures 1 to 5 A continuous loading and unloading device for a high-frequency thick-walled welding wire unit comprises a material storage box 1 and a welding gun 7. A discharge port 12 is provided on the side surface of the material storage box 1 near the lower position. A loading and unloading assembly is provided on the side of the material storage box 1 located at the discharge port 12. The loading and unloading assembly is used for automatically loading and unloading materials welded by the welding gun 7. The loading and unloading assembly comprises a limiting plate 11. A first limiting block 9 is provided on the left side of the limiting plate 11. A second limiting block 10 is provided on the right side of the limiting plate 11. The upper end surfaces of the limiting plate 11, the first limiting block 9 and the second limiting block 10 are all inclined, and the inclination directions of the three are the same. A first cylinder 8 is provided below the limiting plate 11. The first cylinder 8 is used to drive the first limiting block 9 and the second limiting block 10 to move up and down synchronously.

[0037] The initial positions of the first limit block 9 and the second limit block 10 are both set at the lower position of the limit plate 11, and the upper end of the second limit block 10 is higher than the upper end of the first limit block 9. The right end of the limit plate 11 is connected to the first guide plate 14, and the right end of the first guide plate 14 is connected to the arc cover 15. Support columns 2 are set on the front and rear sides of the arc cover 15, and flange grooves 3 are opened on the adjacent surfaces of the two groups of support columns 2. The front and rear ends of the arc cover 15 correspond to the flange grooves 3. The welding guns 7 are set in two groups, and the two groups of welding guns 7 are respectively set at the openings of the flange grooves 3.

[0038] During operation, the thick-walled steel pipe 35 is first filled into the storage box 1. The inner bottom of the storage box 1 is inclined, and the inclination angle is toward the discharge port 12. Therefore, the thick-walled steel pipe 35 located at the discharge port 12 will roll along the slope of the inner bottom wall of the storage box 1, and will roll above the first limit block 9, while being blocked by the limit plate 11. At this time, the first cylinder 8 is controlled to extend upward, and finally the first cylinder 8 will drive the first limit block 9 and the second limit block 10 to move upward synchronously. The first limit block 9 will push the upper thick-walled steel pipe 35 when moving upward, and finally push the thick-walled steel pipe 35 to the top of the limit plate 11, and at this time the second limit block 10 The limit block 10 will extend from the bottom of the limit plate 11. Because the upper end of the first limit block 9 is inclined, the thick-walled steel pipe 35 will roll down and roll along the limit plate 11 under the action of its own gravity, and will finally be blocked by the second limit block 10. Then the first cylinder 8 will contract to drive the first limit block 9 and the second limit block 10 back to the initial position. The adjacent thick-walled steel pipe 35 in the storage box 1 will roll to the top of the first limit block 9 and be blocked by the limit plate 11, and the second limit block 10 will no longer block the corresponding thick-walled steel pipe 35. At this time, the thick-walled steel pipe 35 will roll down along the slope of the first guide plate 14 into the arc cover 15.

[0039] The worker inserts the flange 36 into the flange groove 3. At this time, the flange 36 and the thick-walled steel pipe 35 are precisely connected. Then the worker can use the welding gun 7 to align the weld between the flange 36 and the thick-walled steel pipe 35 for welding. The welding gun 7 is connected to the high-frequency welding unit through a wire. After the upper half of the weld between the flange 36 and the thick-walled steel pipe 35 is welded, the thick-walled steel pipe 35 is rotated to weld the remaining welds, and finally the welding of the flange 36 and the thick-walled steel pipe 35 is completed.

[0040] like Figure 2 , Figure 4As shown, the lower ends of the first limit block 9 and the second limit block 10 are fixedly connected to a mounting plate 20, and the mounting plate 20 is located above the first cylinder 8. The right end of the mounting plate 20 is fixedly connected to two groups of unloading rods 21, and the unloading rod 21 is designed in an L-shaped structure. The upper end of the unloading rod 21 is designed to be inclined, and the inclination direction of the unloading rod 21 is the same as the inclination direction of the limit plate 11. The left end of the limit plate 11 is fixedly connected to the first connecting rod 13, and the left end of the first connecting rod 13 is fixedly connected to the storage box 1. The two groups of unloading rods 21 are respectively located at the front and rear ends of the arc cover 15, and the initial position of the unloading rod 21 is located below the arc cover 15. The right end of the arc cover 15 is connected to the second guide plate 16.

[0041] After welding is completed, unloading operation is required. At this time, the first cylinder 8 pushes the mounting plate 20 to move upward. When the mounting plate 20 moves upward, it will drive the unloading rod 21 to move synchronously. The unloading rod 21 will push the thick-walled steel pipe 35 in the arc cover 15. Finally, the unloading rod 21 will push the welded thick-walled steel pipe 35 to the top of the arc cover 15. The contact surface between the unloading rod 21 and the thick-walled steel pipe 35 is designed to be an inclined surface. The thick-walled steel pipe 35 will roll along the inclined surface of the unloading rod 21 to the first guide plate 14, and finally roll downward along the first guide plate 14. A material receiving device or a transmission belt can be installed under the first guide plate 14 to transport the welded thick-walled steel pipe 35 away.

[0042] When the mounting plate 20 moves upward for unloading, it will also simultaneously drive the first limit block 9 and the second limit block 10 to move upward. The upward movement of the first limit block 9 will push the thick-walled steel pipe 35 above it upward, and the thick-walled steel pipe 35 will roll along the limit plate 11 to the second limit block 10, and will be blocked by the second limit block 10. When the first limit block 9 and the second limit block 10 return to their initial positions, the thick-walled steel pipe 35 will automatically roll into the arc cover 15, realizing automatic unloading and automatic loading at the same time, avoiding the problem of manual handling of the thick-walled steel pipe 35, and also avoiding the problem of workers being injured by manual handling of the thick-walled steel pipe 35.

[0043] like Figures 2 to 7 As shown, the upper end of the support column 2 is fixedly connected with a guide plate cover 4, and the guide plate cover 4 is designed to be a hollow structure. The lower surface of the guide plate cover 4 is provided with an opening for materials to pass through at a position opposite to the flange groove 3. The side surface of the guide plate cover 4 is fixedly connected with a guide box 27, and the interior of the guide box 27 is interconnected with the interior of the guide plate cover 4, and the guide box 27 and the guide plate cover 4 are both arranged to be inclined downward.

[0044] like Figures 2 to 7As shown, a second connecting rod 22 is fixedly connected to a position near the upper end of the side surface of the first cylinder 8, a cross bar 23 is fixedly connected to the upper end of the second connecting rod 22, a first limiting rod 24 is fixedly connected to the left end of the cross bar 23, and a second limiting rod 25 is fixedly connected to the right end of the cross bar 23. A flow hole 26 for materials to pass through is penetrated on the side wall of the second limiting rod 25, a first limiting hole 31 for the first limiting rod 24 to enter and exit is penetrated at a position of the lower end wall of the guide plate cover 4 opposite to the first limiting rod 24, two groups of second limiting holes 32 for the second limiting rod 25 to enter and exit are penetrated at a position above the guide plate cover 4 opposite to the second limiting rod 25, the initial position of the first limiting rod 24 is located below the guide plate cover 4, and the initial position of the upper half of the second limiting rod 25 is located inside the guide plate cover 4.

[0045] like Figure 6 As shown, a guide plate 30 is fixedly connected to the inner side wall of the flange groove 3 . The guide plate 30 is designed in a trapezoidal structure, and the upper end of the guide plate 30 is inclined toward the opening of the flange groove 3 .

[0046] An appropriate amount of flange 36 is vertically placed in the guide box 27. Because the guide box 27 is inclined and inclined toward the guide disc cover 4, the flange 36 in the guide box 27 will move into the guide disc cover 4. Because the guide disc cover 4 is inclined, the flange 36 in the guide disc cover 4 will roll along the slope of the guide disc cover 4 and will finally be blocked by the second limiting rod 25. When unloading, the first cylinder 8 extends upward, and the first cylinder 8 will push the second connecting rod 22 and the cross bar 23 to move upward. The first limiting rod 24 will be inserted into the first limiting hole 31 and prevent the flange 36 at the left end of the first limiting rod 24 from rolling along the guide disc cover 4. When the second limit rod 25 moves upward and moves to the flow hole 26 corresponding to the flange 36, the flange 36 will move to the right along the guide cover 4 and pass through the flow hole 26, and finally fall from the opening of the guide cover 4 and fall into the flange groove 3. When falling, the flange 36 will be guided by the guide plate 30, and finally the flange 36 will fit the thick-walled steel pipe 35, which is convenient for the welding gun 7 to perform welding. When the first cylinder 8 shrinks back to the initial position, the first limit rod 24 is removed from the guide cover 4, and the blocked flange 36 will move to the right and finally be blocked by the second limit rod 25 to prepare for the welding of the next group of thick-walled steel pipes 35.

[0047] like Figure 6 and Figure 8 As shown, a second cylinder 5 is installed on the guide plate cover 4 , a mounting frame 6 is fixedly connected to the lower end of the second cylinder 5 , and a welding gun 7 is installed on the mounting frame 6 .

[0048] like Figure 6 and Figure 8As shown, the lower surface of the mounting frame 6 is fixedly connected with a support frame 28, a rotating wheel 34 is installed at the lower end of the support frame 28, and a motor 29 is installed on the side surface of the support frame 28, and the motor 29 is used to drive the rotating wheel 34 to rotate.

[0049] After the thick-walled steel pipe 35 moves into the arc cover 15 and the flange 36 moves into the flange groove 3, the second cylinder 5 is turned on, and the second cylinder 5 will push the mounting frame 6 to move downward. Finally, the gun head of the welding gun 7 will contact the weld between the thick-walled steel pipe 35 and the flange 36, and weld the contacted weld. When the mounting frame 6 moves downward, the rotating wheel 34 will also be in close contact with the outer wall of the thick-walled steel pipe 35. During the welding process, the motor 29 drives the rotating wheel 34 to rotate. When the rotating wheel 34 rotates, it will also drive the thick-walled steel pipe 35 to rotate. Because part of the weld between the thick-walled steel pipe 35 and the flange 36 is touched by the welding gun 7, the thick-walled steel pipe 35 will also drive the flange 36 to rotate when it rotates, so that the weld can be touched by the welding gun 7. Finally, the welding of the thick-walled steel pipe 35 and the flange 36 is completed. After the welding is completed, the second cylinder 5 contracts, drives the welding gun 7 and the rotating wheel 34 back to the initial position, and then the first cylinder 8 is turned on to carry out loading and unloading operations.

[0050] like Figure 4 As shown, an L-shaped support plate 17 is fixedly connected to the lower surface of the storage box 1 near the discharge port 12, and a mounting plate 20 is arranged on the L-shaped support plate 17. A slide groove 18 is opened on the side surface of the L-shaped support plate 17, and a slider 19 is slidably connected in the slide groove 18, and the slider 19 is fixedly connected to the mounting plate 20.

[0051] The L-shaped support plate 17 provides support for the mounting plate 20 , and the slider 19 slides in the slide groove 18 , thereby ensuring the stability of the mounting plate 20 during movement.

[0052] like Figure 1 As shown, a support rod 33 is fixedly connected to the lower end of the arc cover 15 , and one end of the support rod 33 away from the arc cover 15 is fixedly connected to the support column 2 . The installation of the support rod 33 provides support for the arc cover 15 .

[0053] The invention also provides a continuous loading and unloading method of a high-frequency thick-walled welding wire unit applicable to the continuous loading and unloading device of the high-frequency thick-walled welding wire unit, comprising the following steps:

[0054] S1: Automatic loading: Control the extension and retraction of the first cylinder 8 to drive the first limit block 9 and the second limit block 10 to move up and down. The first limit block 9 and the second limit block 10 move up and down to drive the thick-walled steel pipe 35 to roll into the arc cover 15. When the first cylinder 8 is extended and retracted, it also drives the first limit rod 24 and the second limit rod 25 to move up and down. The first limit rod 24 and the second limit rod 25 move up and down to drive the flange 36 to roll into the flange groove 3;

[0055] S2: Automatic welding: Control the second cylinder 5 to extend so that the welding gun 7 contacts the weld between the thick-walled steel pipe 35 and the flange 36, then the motor 29 drives the rotating wheel 34 to rotate, and the rotating wheel 34 drives the thick-walled steel pipe 35 to rotate. When the thick-walled steel pipe 35 rotates, it drives the flange 36 to rotate, so that the entire circle of the weld can be contacted by the welding gun 7, and finally the welding of the thick-walled steel pipe 35 and the flange 36 is completed;

[0056] S3: Automatic unloading: The first cylinder 8 drives the unloading rod 21 to rise, and the unloading rod 21 will push the welded thick-walled steel pipe 35 to the top of the arc cover 15. The thick-walled steel pipe 35 will roll along the inclined surface of the unloading rod 21 to the first guide plate 14 and continue to roll downward.

[0057] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A continuous loading and unloading device for a high-frequency thick-walled wire welding machine, comprising a material storage box (1) and a welding gun (7), characterized in that: A discharge port (12) is provided on the side surface of the material storage box (1) near the lower position, and a loading and unloading assembly is provided on the side of the material storage box (1) located at the discharge port (12), and the loading and unloading assembly is used for automatically loading and unloading materials to be welded by the welding gun (7), and the loading and unloading assembly comprises a limit plate (11), a first limit block (9) is provided on the left side of the limit plate (11), and a second limit block (10) is provided on the right side of the limit plate (11), and the upper end surfaces of the limit plate (11), the first limit block (9) and the second limit block (10) are all inclined, and the inclination directions of the three are the same, and a first cylinder (8) is provided below the limit plate (11), and the first cylinder (8) is used to drive the first limit block (9) and the second limit block (10) to move up and down synchronously; The initial positions of the first limit block (9) and the second limit block (10) are both arranged at positions below the limit plate (11), and the upper end of the second limit block (10) is higher than the upper end of the first limit block (9); the right end of the limit plate (11) is connected to the first guide plate (14); the right end of the first guide plate (14) is connected to the arc cover (15); support columns (2) are arranged on both the front and rear sides of the arc cover (15); adjacent surfaces of the two groups of support columns (2) are provided with flange grooves (3); the front and rear ends of the arc cover (15) correspond to the flange grooves (3); the welding guns (7) are arranged in two groups, and the two groups of welding guns (7) are respectively arranged at the openings of the flange grooves (3); The lower ends of the first limit block (9) and the second limit block (10) are both fixedly connected to a mounting plate (20), the mounting plate (20) being located above the first cylinder (8), the right end of the mounting plate (20) being fixedly connected to two groups of discharge rods (21), the discharge rods (21) being designed in an L-shaped structure, the upper ends of the discharge rods (21) being designed in an inclined manner, and the inclination direction of the discharge rods (21) being the same as the inclination direction of the limit plate (11), the left end of the limit plate (11) being fixedly connected to a first connecting rod (13), the left end of the first connecting rod (13) being fixedly connected to the material storage box (1), the two groups of discharge rods (21) being located at the front and rear ends of the arc cover (15), respectively, the initial position of the discharge rods (21) being located below the arc cover (15), and the right end of the arc cover (15) being connected to a second guide plate (16); The upper end of the support column (2) is fixedly connected to a guide plate cover (4), the guide plate cover (4) is of hollow structure design, and an opening for materials to pass through is provided through the lower surface of the guide plate cover (4) at a position directly opposite to the flange groove (3), and a flow guide box (27) is fixedly connected to the side surface of the guide plate cover (4), and the interior of the flow guide box (27) is communicated with the interior of the guide plate cover (4), and the flow guide box (27) and the guide plate cover (4) are both arranged to be inclined downward; A second connecting rod (22) is fixedly connected to a position near the upper end of the side surface of the first cylinder (8), a cross rod (23) is fixedly connected to the upper end of the second connecting rod (22), a first limiting rod (24) is fixedly connected to the left end of the cross rod (23), a second limiting rod (25) is fixedly connected to the right end of the cross rod (23), a flow hole (26) for materials to pass through is formed through the side wall of the second limiting rod (25), a first limiting hole (31) for the first limiting rod (24) to enter and exit is formed through the lower end wall of the guide plate cover (4) at a position directly opposite to the first limiting rod (24), two groups of second limiting holes (32) for the second limiting rod (25) to enter and exit are formed through the upper position of the guide plate cover (4) directly opposite to the second limiting rod (25), the initial position of the first limiting rod (24) is located below the guide plate cover (4), and the initial position of the upper half of the second limiting rod (25) is located inside the guide plate cover (4); A guide plate (30) is fixedly connected to the inner side wall of the flange groove (3); the guide plate (30) is designed to be a trapezoidal structure, and the upper end of the guide plate (30) is inclined toward the opening of the flange groove (3); A second cylinder (5) is mounted on the guide plate cover (4); a mounting frame (6) is fixedly connected to the lower end of the second cylinder (5); and the welding gun (7) is mounted on the mounting frame (6); The lower surface of the mounting frame (6) is fixedly connected to a support frame (28), a rotating wheel (34) is mounted on the lower end of the support frame (28), and a motor (29) is mounted on the side surface of the support frame (28), the motor (29) being used to drive the rotating wheel (34) to rotate.

2. According to claim 1, a high-frequency thick-wall welding wire unit continuous loading and unloading device is characterized in that: An L-shaped support plate (17) is fixedly connected to the lower surface of the material storage box (1) near the discharge port (12); the mounting plate (20) is arranged on the L-shaped support plate (17); a slide groove (18) is provided on the side surface of the L-shaped support plate (17); a slider (19) is slidably connected in the slide groove (18); and the slider (19) is fixedly connected to the mounting plate (20).

3. The continuous loading and unloading device of a high-frequency thick-walled welding wire unit according to claim 1 is characterized in that: The lower end of the arc-shaped cover (15) is fixedly connected to a support rod (33), and one end of the support rod (33) away from the arc-shaped cover (15) is fixedly connected to a support column (2).

4. A continuous loading and unloading method for a high-frequency thick-walled welding wire unit applicable to the continuous loading and unloading device for a high-frequency thick-walled welding wire unit according to claim 1, characterized in that: The steps include: S1: Automatic loading: Control the extension and retraction of the first cylinder (8) to drive the first limit block (9) and the second limit block (10) to move up and down. The first limit block (9) and the second limit block (10) move up and down, driving the thick-walled steel pipe (35) to roll into the arc cover (15). When the first cylinder (8) is extended and retracted, it also drives the first limit rod (24) and the second limit rod (25) to move up and down. The first limit rod (24) and the second limit rod (25) move up and down, driving the flange (36) to roll into the flange groove (3); S2: Automatic welding: Control the second cylinder (5) to extend so that the welding gun (7) contacts the weld seam between the thick-walled steel pipe (35) and the flange (36), then the motor (29) drives the rotating wheel (34) to rotate, and the rotating wheel (34) drives the thick-walled steel pipe (35) to rotate. When the thick-walled steel pipe (35) rotates, it drives the flange (36) to rotate, so that the entire circle of the weld seam can be contacted by the welding gun (7), and finally the welding of the thick-walled steel pipe (35) and the flange (36) is completed; S3: Automatic unloading: The first cylinder (8) drives the unloading rod (21) to rise, and the unloading rod (21) pushes the welded thick-walled steel pipe (35) to the top of the arc cover (15). The thick-walled steel pipe (35) rolls along the inclined surface of the unloading rod (21) onto the first guide plate (14) and continues to roll downward.

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