Semicircular pipe continuous curling welding system

Abstract

The utility model discloses a semicircular pipe continuous curling welding system, which relates to the technical field of curling welding equipment and comprises a semicircular pipe bending machine, a welding machine, a rolling support frame, a first concave wheel, a cam, a second concave wheel, a welding head and a third concave wheel. According to the utility model, after a plate is curled for multiple times by the first concave wheel and the cam, the bending and shaping treatment of the semicircular pipe is completed, and the position of the second concave wheel is adjusted, so that the overall bending angle of the semicircular pipe after bending and shaping can be adjusted, and the bending angle of the semicircular pipe is consistent with the arc angle of the outer wall of the reaction kettle; the follow-up semicircular pipe can be better attached to the outer wall of the reaction kettle after being bent and shaped, and then welding work of the semicircular pipe and the reaction kettle is facilitated; and the third concave wheel carries out rolling compaction treatment on the semicircular pipe above the welding head, rolling compaction treatment can be carried out on the semicircular pipe, the stability of the semicircular pipe during welding machining can be effectively guaranteed, and continuous curling welding machining treatment of the semicircular pipe is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of curling welding equipment, in particular to a semicircular tube continuous curling welding system. Background Art

[0002] The semi-circular tube jacketed reactor is a reactor specially used for reactants that need to be processed hot or cold, because the semi-circular tube jacket on the outside can effectively stabilize the internal temperature of the reactor. In addition, the semi-circular tube on the outer wall of the reactor body can reduce the wall thickness of the reactor. The inner cylinder of the reactor is subject to external pressure, and the semi-circular tube jacket is subject to internal pressure. The semi-circular tube jacket is equivalent to a reinforcement ring, which can effectively improve the pressure resistance of the reactor. During the production and processing of the semi-circular tube jacketed reactor, the plate needs to be curled into a semi-circular tube, and then the semi-circular tube is welded to the reactor wall.

[0003] The patent (CN211867109U) discloses a device for automatic continuous winding and welding of half-tubes, including a roller frame and an unwinding machine and a half-tube machine placed on one side of a reactor. The reactor is placed on the roller frame, and the steel strip is wound on the reactor through the half-tube machine. A welding device is provided on the other side of the reactor, and the welding device includes a positioning block and a welding gun. The side of the positioning block close to the half-tube is provided with an arc surface adapted to the arc-shaped outer peripheral surface of the half-tube. Welding guns are installed on both sides of the positioning block, and the welding head of the welding gun is located at the gap between the half-tube and the reactor. The use of this device realizes automatic operation, and does not require manual welding by workers, which improves work efficiency and saves workers' time and physical strength.

[0004] The device for automatic continuous winding and welding of half pipes in the above patent document is not convenient for ensuring the surface fit between the semicircular pipe and the welded pipe after the semicircular pipe is completely shaped, thereby affecting the stability of welding. Utility Model Content

[0005] The utility model aims to provide a semicircular tube continuous curling and welding system to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a semi-circular tube continuous curling welding system, including a semi-circular tube bending machine and a welding machine, the semi-circular tube bending machine is movably arranged on the top of a first base, and rolling support frames are symmetrically arranged at both ends of the top of the first base, the welding machine is movably arranged on the top of a second base, and the semi-circular tube bending machine is inclinedly provided with a plurality of first cams rotatably connected, the semi-circular tube bending machine is movably provided with a cam matching the first cam above the first cam, and a movably connected second cam is provided on one side of the outer wall of the semi-circular tube bending machine, and the welding machine includes a three-dimensional adjustment component and two welding heads, and the outer wall of the three-dimensional adjustment component is rotatably provided with a third cam above the two welding heads.

[0007] Furthermore, a plurality of first walking components are provided at the bottom of the semicircular tube bending machine, and the first walking components are rollingly connected to the top of the first base. The semicircular tube bending machine includes a mounting frame and a motor. The outer wall of the first cam is rotatably connected to the mounting frame through a first support shaft, and the motor is gear-connected to a first support shaft through a first reducer.

[0008] Furthermore, the outer wall of each of the first support shafts is provided with a first gear, two adjacent first gears are connected through a second gear transmission, the outer wall of the cam is provided with a second support shaft, the outer wall of the second support shaft is provided with a support block, the second support shaft is rotatably connected to the support block, a cylinder is provided on the top of the support block, and one of the second support shafts is meshed with the first gear through a third gear.

[0009] Furthermore, a first support plate is provided on one side of the outer wall of the mounting frame, a screw lift is provided on the first support plate, a mounting seat is provided on the top of the screw lift, and the second concave wheel is rotatably connected to the mounting seat.

[0010] Furthermore, a second support plate is provided on the outer wall of the mounting frame on the side away from the second cam, a plurality of rotatably connected guide rollers are provided on the top of the second support plate on the side away from the first cam, two rotatably connected auxiliary rollers are symmetrically provided at both ends of the top of the second support plate close to the first cam, the guide rollers and the auxiliary rollers are perpendicular to each other, and the two auxiliary rollers are aligned with both ends of the guide roller.

[0011] Furthermore, the three-dimensional adjustment assembly includes a third support plate, a first support rod and a second support rod, the first support rod is vertically arranged on the top of the third support plate, the second support rod is horizontally slidably arranged on the outer wall of the first support rod, a second walking assembly is provided on the top of the third support plate, the second walking assembly is driven and connected to the second base through a gear rack assembly, a lifting adjustment assembly is provided on the top of the outer wall of the second support rod, the lifting adjustment assembly is connected to the sliding frame of the outer wall of the second support rod, the sliding frame is slidably connected to the first support rod, and the second support rod is slidably connected to the sliding frame, a third walking assembly is provided on the sliding frame, and the third walking assembly is driven and connected to the second support rod through a gear rack assembly.

[0012] Furthermore, the welding head and one end of the second support rod are connected through an adjustment component, and the adjustment component includes two first electric slides, and a rotating adjustment seat is provided at the output end of the first electric slide, and a second electric slide and a third electric slide are provided on the rotating adjustment seat, and the third electric slide is connected to the output end of the second electric slide. Two welding heads are provided, and the two welding heads are respectively connected to the output ends of the two third electric slides.

[0013] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0014] 1. The utility model provides a semicircular tube bending machine, a welding machine, a rolling support frame, a first concave wheel, a cam, a second concave wheel, a welding head and a third concave wheel. The semicircular tube bending machine performs a semicircular bending forming process on the plate. After the plate is subjected to multiple curling processes by the first concave wheel and the cam, the bending and shaping process of the semicircular tube is completed. At the same time, the second concave wheel performs a guiding process after the semicircular tube is bent and shaped, and the position of the second concave wheel is adjusted, thereby adjusting the overall bending angle of the semicircular tube after the bending and shaping, so that the bending angle of the semicircular tube is consistent with the arc angle of the outer wall of the reactor, so that the subsequent semicircular tube is better fitted with the outer wall of the reactor after the bending and shaping, thereby facilitating the welding work of the semicircular tube and the reactor; the third concave wheel is above the welding head The semicircular tube is rolled and compacted before the welding head is welded, so as to ensure the surface fit between the semicircular tube and the welding pipe fitting, and effectively ensure the stability of the semicircular tube during welding. The two rolling support frames roll the reactor and support the two ends of the reactor respectively, so that the reactor can roll during the welding process, thereby ensuring that the semicircular tube is spirally arranged on the surface of the reactor. The three-dimensional adjustment component can ensure the position adjustment of the welding head and the third concave wheel in three-dimensional space, which can effectively ensure that the welding head performs welding processing on the semicircular tubes at different positions, and ensure that the semicircular tubes are spirally welded evenly on the surface of the reactor, thereby ensuring the continuous curling welding processing of the semicircular tubes.

[0015] 2. In the utility model, the cylinder can be raised and lowered by the support block, thereby realizing the raising and lowering adjustment of the cam, so as to ensure that the plate to be bent is fed between the cam and the first concave wheel, while ensuring the pressing force of the cam and the first concave wheel on the plate; the first support plate supports the screw lifter, and the screw lifter can drive the mounting seat to perform lifting and lowering movements, and the mounting seat drives the second concave wheel to perform lifting and lowering movements. The lifting and lowering movement of the second concave wheel can effectively adjust the arc angle of the semicircular tube to be bent, so as to facilitate the fitting of the semicircular tube and the outer wall of the reactor, and thus facilitate the subsequent welding work; multiple guide rollers work together to transport and guide the plate to be curled, which can effectively enhance the stability of the curling; the auxiliary rollers can perform rolling guidance on both sides of the plate to be curled, which can effectively improve the stability of the plate to be curled. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a structural schematic diagram of a semicircular tube bending machine and a welding machine of the utility model;

[0018] Figure 2 This utility model Figure 1 The enlarged schematic diagram of point A in the middle;

[0019] Figure 3 This is the front view of the semicircular tube bending machine and the base of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the semicircular tube bending machine of the utility model;

[0021] Figure 5 This is a schematic diagram of the internal structure of the semicircular tube bending machine of the utility model;

[0022] Figure 6 This is a schematic diagram of the internal structure of the semicircular tube bending machine of the utility model from another angle;

[0023] In the figure: 1. the first base; 2. the semicircular tube bending machine; 3. the welding machine; 4. the rolling support frame; 5. the second base; 6. the first concave wheel; 7. the cam; 8. the second concave wheel; 9. the welding head; 10. the third concave wheel; 11. the first walking assembly; 12. the mounting frame; 13. the first supporting shaft; 14. the first gear; 15. the second gear; 16. the second supporting shaft; 17. the supporting block; 18. the cylinder; 19. the third gear; 20. the screw lifter; 21. the mounting seat; 22. the second supporting plate; 23. the guide roller; 24. the auxiliary roller; 25. the third supporting plate; 26. the first supporting rod; 27. the second supporting rod; 28. the second walking assembly; 29. ​​the lifting and lowering adjustment assembly; 30. the sliding frame; 31. the third walking assembly; 32. the first electric slide; 33. the rotating adjustment seat; 34. the second electric slide; 35. the third electric slide; 36. the first supporting plate; 37. the motor. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 6The utility model provides a technical solution: a semicircular tube continuous curling and welding system, including a semicircular tube bending machine 2 and a welding machine 3, the semicircular tube bending machine 2 is movably arranged on the top of a first base 1, and rolling support frames 4 are symmetrically arranged at both ends of the top of the first base 1, and the welding machine 3 is movably arranged on the top of a second base 5, and the semicircular tube bending machine 2 is inclinedly provided with a plurality of first concave wheels 6 rotatably connected to the rolling support frame 4, and the semicircular tube bending machine 2 is movably provided with a cam 7 matching the first concave wheel 6 above the first concave wheel 6, and a movably connected second concave wheel 8 is provided on one side of the outer wall of the semicircular tube bending machine 2, and the welding machine 3 includes a three-dimensional adjustment component and two welding heads 9, and a third concave wheel 10 is rotatably provided on the outer wall of the three-dimensional adjustment component above the two welding heads 9.

[0026] The bottom of the semicircular tube bending machine 2 is provided with a plurality of first walking components 11, and the first walking components 11 are rollingly connected to the top of the first base 1. The semicircular tube bending machine 2 includes a mounting frame 12 and a motor 37. The outer wall of the first cam 6 is rotatably connected to the mounting frame 12 through a first support shaft 13. The motor 37 is gear-connected to a first support shaft 13 through a first reducer. The first walking component 11 drives the semicircular tube bending machine 2 to move along the first base 1, thereby realizing a uniform spiral arrangement of the outer wall of the reactor cylinder, so as to facilitate continuous welding processing; the motor 37 drives a first cam 6 to rotate through the first support shaft 13; the outer wall of the first support shaft 13 is provided with a first gear 14, and two adjacent first gears 14 are transmission-connected through a second gear 15; the outer wall of the cam 7 is provided with a second support shaft 16, and the outer wall of the second support shaft 16 is sleeved with a There is a support block 17, the second support shaft 16 is rotatably connected to the support block 17, and a cylinder 18 is provided on the top of the support block 17. One of the second support shafts 16 is meshed with the first gear 14 through the third gear 19. The first support shaft 13 on the first cam 6 drives the other first cams 6 to rotate through the first gear 14 and the second gear 15, and the first cams 6 have the same rotation direction. The second support shaft 16 rotates the cam 7, and the first gear 14 drives a second support shaft 16 to rotate through the third gear 19. The second support shaft 16 drives the cam 7 to rotate, and the first cam 6 and the cam 7 rotate in opposite directions to ensure the curling and conveying processing of the semicircular tube; the cylinder 18 can be lifted and lowered by the support block 17, thereby realizing the lifting and lowering adjustment of the cam 7, thereby ensuring that the plate to be bent is fed between the cam 7 and the first cam 6, and at the same time ensuring the clamping force of the cam 7 and the first cam 6 on the plate.

[0027] A first support plate 36 is provided on one side of the outer wall of the mounting frame 12, and a screw lift 20 is provided on the first support plate 36. A mounting seat 21 is provided on the top of the screw lift 20, and the second concave wheel 8 is rotatably connected to the mounting seat 21. The first support plate 36 supports the screw lift 20, and the screw lift 20 can drive the mounting seat 21 to perform lifting and lowering movements, and the mounting seat 21 drives the second concave wheel 8 to perform lifting and lowering movements. The lifting and lowering movement of the second concave wheel 8 can effectively adjust the arc angle of the bent semicircular tube, so as to facilitate the fitting of the semicircular tube and the outer wall of the reactor, and then facilitate the subsequent welding work.

[0028] A second support plate 22 is provided on the side of the outer wall of the mounting frame 12 away from the second cam wheel 8, and a plurality of guide rollers 23 are rotatably connected to the top of the second support plate 22 away from the first cam wheel 6. The second support plate 22 supports the guide rollers 23, and the plurality of guide rollers 23 cooperate to convey and guide the sheet to be curled, which can effectively enhance the stability of the curling; two auxiliary rollers 24 are symmetrically rotatably connected at both ends of the top of the second support plate 22 close to the first cam wheel 6, and the guide rollers 23 and the auxiliary rollers 24 are perpendicular to each other, and the two auxiliary rollers 24 are aligned with the two ends of the guide rollers 23, and the auxiliary rollers 24 can perform rolling guidance on both sides of the sheet to be curled, which can effectively improve the stability of the sheet to be curled.

[0029] The three-dimensional adjustment component includes a third support plate 25, a first support rod 26 and a second support rod 27, wherein the first support rod 26 is vertically arranged on the top of the third support plate 25, and the second support rod 27 is horizontally slidably arranged on the outer wall of the first support rod 26, and a second walking component 28 is arranged on the top of the third support plate 25, and the second walking component 28 is driven and connected with the second base 5 through a gear rack component, and the second walking component 28 is driven to walk on the third support plate 25, so that the third support plate 25 can walk along the second base 5, thereby realizing the walking movement of the first support rod 26, the second support rod 27 and the welding head 9 along the second base 5, ensuring that the welding head 9 can move with the semicircular tube bending machine 2, thereby ensuring the continuous curling welding processing of the semicircular tube of the reactor; the third support plate 25 is provided with a second walking component 28, and the second walking component 28 is connected with the second base 5 through a gear rack assembly. The second walking component 28 is driven to walk on the third support plate 25, so that the third support plate 25 can walk along the second base 5, thereby realizing the walking movement of the first support rod 26, the second support rod 27 and the welding head 9 along the second base 5, ensuring that the welding head 9 can move with the semicircular tube bending machine 2, thereby ensuring the continuous curling welding processing of the semicircular tube of the reactor; A lifting and adjusting assembly 29 is provided at the top of the outer wall of the second support rod 27, and the lifting and adjusting assembly 29 is connected to a sliding frame 30 on the outer wall of the second support rod 27, and the sliding frame 30 is slidably connected to the first support rod 26, and the second support rod 27 is slidably connected to the sliding frame 30, and a third walking assembly 31 is provided on the sliding frame 30, and the third walking assembly 31 is driven and connected to the second support rod 27 by a gear rack assembly. The lifting and adjusting assembly 29 drives the second support rod 27 to perform lifting and lowering movements, thereby realizing the lifting and lowering movement of the welding head 9, and the third walking assembly 31 drives the second support rod 27 to slide horizontally along the sliding frame 30, thereby realizing horizontal adjustment of the welding head 9, thereby realizing three-dimensional adjustment movement of the welding head 9, which is convenient for the welding head 9 to perform welding processing on the semicircular tube and the reactor.

[0030] The welding head 9 is connected to one end of the second support rod 27 through an adjustment component, and the adjustment component includes two first electric slides 32, and the output end of the first electric slide 32 is provided with a rotation adjustment seat 33, and the rotation adjustment seat 33 is provided with a second electric slide 34 and a third electric slide 35, and the third electric slide 35 is connected to the output end of the second electric slide 34. Two welding heads 9 are provided, and the two welding heads 9 are respectively connected to the output ends of the two third electric slides 35. The adjustment component fine-tunes the welding head 9, and the first electric slide 32 horizontally adjusts the rotation adjustment seat 33, and then adjusts the spacing between the two welding heads 9, so that the two welding heads 9 can perform welding processing on semicircular tubes of different sizes; the rotation adjustment seat 33 can realize the adjustment of the rotation angle of the welding head 9 to ensure that the processing head of the welding head 9 is aligned with the weld of the semicircular tube and the reactor, and the second electric slide 34 and the third electric slide 35 can cooperate to fine-tune the position of the welding head 9, so that the distance between the welding head 9 and the weld of the semicircular tube and the reactor is closer, thereby ensuring the welding quality.

[0031] The working principle of this utility model:

[0032] Refer to the instruction manual Figure 1-Figure 6The utility model is provided with a semicircular tube bending machine 2, a welding machine 3, a rolling support frame 4, a first concave wheel 6, a cam 7, a second concave wheel 8, a welding head 9 and a third concave wheel 10. The semicircular tube bending machine 2 performs a semicircular bending forming process on the plate, and the plate to be processed is sent between the first concave wheel 6 and the cam 7. The first concave wheel 6 and the cam 7 clamp the plate to be processed. The first concave wheel 6 and the cam 7 cooperate to press and bend the plate to be processed. The semicircular tube bending machine 2 is turned on. The first concave wheel 6 and the cam 7 roll to transport the bent and deformed plate between the first concave wheel 6 and the cam 7 of the semicircular tube bending machine 2. After the plate is curled multiple times by the first concave wheel 6 and the cam 7, the bending and shaping process of the semicircular tube is completed. At the same time, the second concave wheel 8 guides the semicircular tube after the bending and shaping. The adjustment The position of the second concave wheel 8 allows the angles of the second concave wheel 8 and the first concave wheel 6 to be adjusted, thereby adjusting the overall bending angle of the semicircular tube after bending and shaping, so that the bending angle of the semicircular tube is consistent with the arc angle of the outer wall of the reactor, which is convenient for the subsequent semicircular tube to better fit the outer wall of the reactor after bending and shaping, thereby facilitating the welding of the semicircular tube and the reactor; the two welding heads 9 in the welding machine 3 can respectively perform welding processing on the two sides of the outer wall of the semicircular tube and the surface of the reactor. When the welding head 9 is being processed, the third concave wheel 10 on the welding machine 3 rolls and presses the semicircular tube above the welding head 9. The semicircular tube can be rolled and pressed before the welding head 9 is welded to ensure that the surface of the semicircular tube and the welded pipe fitting fits, which can effectively ensure the stability of the semicircular tube during welding processing;

[0033] The two rolling support frames 4 perform rolling support treatment on the reactor and can support the two ends of the reactor respectively, so that the reactor can roll during the welding process, thereby ensuring that the semicircular tubes are spirally arranged on the surface of the reactor; as the semicircular tube bending machine 2 moves, the semicircular tubes can be spirally arranged evenly on the surface of the reactor, and the three-dimensional adjustment component of the welding machine 3 can ensure that the welding head 9 and the third concave wheel 10 are adjusted in three-dimensional space, which can effectively ensure that the welding head 9 performs welding processing on the semicircular tubes at different positions, ensuring that the semicircular tubes are spirally welded evenly on the surface of the reactor, thereby ensuring continuous curling welding processing of the semicircular tubes.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A semi-circular tube continuous curling and welding system, comprising a semi-circular tube bending machine (2) and a welding machine (3), characterized in that: The semicircular tube bending machine (2) is movably arranged on the top of the first base (1), and rolling support frames (4) are symmetrically arranged at both ends of the top of the first base (1). The welding machine (3) is movably arranged on the top of the second base (5). A plurality of first concave wheels (6) are rotatably arranged on the semicircular tube bending machine (2), and a cam (7) matching the first concave wheel (6) is movably arranged on the top of the first concave wheel (6). A second concave wheel (8) movably connected is arranged on one side of the outer wall of the semicircular tube bending machine (2). The welding machine (3) comprises a three-dimensional adjustment component and two welding heads (9), and a third concave wheel (10) is rotatably arranged on the outer wall of the three-dimensional adjustment component above the two welding heads (9).

2. The semicircular tube continuous curling welding system according to claim 1, characterized in that: The bottom of the semi-circular tube bending machine (2) is provided with a plurality of first walking assemblies (11), the first walking assemblies (11) are rollingly connected to the top of the first base (1), the semi-circular tube bending machine (2) comprises a mounting frame (12) and a motor (37), the outer wall of the first concave wheel (6) is rotationally connected to the mounting frame (12) via a first support shaft (13), and the motor (37) is gear-connected to a first support shaft (13) via a first reducer.

3. The semicircular tube continuous curling welding system according to claim 2, characterized in that: The outer wall of each of the first support shafts (13) is provided with a first gear (14), and two adjacent first gears (14) are connected in transmission via a second gear (15). The outer wall of the cam (7) is provided with a second support shaft (16), and the outer wall of the second support shaft (16) is sleeved with a support block (17). The second support shaft (16) is rotatably connected to the support block (17), and a cylinder (18) is provided at the top of the support block (17). One of the second support shafts (16) is meshed with the first gear (14) via a third gear (19).

4. The semicircular tube continuous curling welding system according to claim 2, characterized in that: A first support plate (36) is provided on one side of the outer wall of the mounting frame (12); a screw lift (20) is provided on the first support plate (36); a mounting seat (21) is provided on the top of the screw lift (20); and the second concave wheel (8) is rotatably connected to the mounting seat (21).

5. The semicircular tube continuous curling welding system according to claim 2, characterized in that: A second support plate (22) is provided on the side of the outer wall of the mounting frame (12) away from the second concave wheel (8), a plurality of rotatably connected guide rollers (23) are provided on the top of the second support plate (22) away from the first concave wheel (6), and two rotatably connected auxiliary rollers (24) are symmetrically provided at both ends of the top of the second support plate (22) close to the first concave wheel (6), the guide rollers (23) and the auxiliary rollers (24) are perpendicular to each other, and the two auxiliary rollers (24) are aligned with both ends of the guide roller (23).

6. The semicircular tube continuous curling welding system according to claim 1, characterized in that: The three-dimensional adjustment component comprises a third support plate (25), a first support rod (26) and a second support rod (27), wherein the first support rod (26) is vertically arranged on the top of the third support plate (25), and the second support rod (27) is horizontally slidably arranged on the outer wall of the first support rod (26). A second walking component (28) is arranged on the top of the third support plate (25), and the second walking component (28) is drivingly connected to the second base (5) through a gear rack assembly. A lifting adjustment component (29) is arranged on the top of the outer wall of the second support rod (27), and the lifting adjustment component (29) is connected to a sliding frame (30) on the outer wall of the second support rod (27), and the sliding frame (30) is slidably connected to the first support rod (26), and the second support rod (27) is slidably connected to the sliding frame (30), and a third walking component (31) is arranged on the sliding frame (30), and the third walking component (31) is drivingly connected to the second support rod (27) through a gear rack assembly.

7. The semicircular tube continuous curling welding system according to claim 6, characterized in that: The welding head (9) and one end of the second support rod (27) are connected via an adjustment component, wherein the adjustment component comprises two first electric slides (32), wherein the output end of the first electric slide (32) is provided with a rotation adjustment seat (33), wherein the rotation adjustment seat (33) is provided with a second electric slide (34) and a third electric slide (35), wherein the third electric slide (35) is connected to the output end of the second electric slide (34), wherein two welding heads (9) are provided, and the two welding heads (9) are respectively connected to the output ends of the two third electric slides (35).

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