A welding device for methanol dual-fuel ships

Abstract

The present application relates to the technical field of welding, in particular to a kind of welding device for methanol dual-fuel ship, including base, the top of the base is fixedly arranged with fixed seat, the top of base is slidably arranged with mobile seat one and mobile seat two located at the two sides of the fixed seat, mobile seat one and mobile seat two are all opened with the through opening for placing the pipe material to be welded, the inside of the through opening is equipped with the clamping unit for fixing pipe material and making pipe material with the coaxial center of through opening, it also includes: installation cylinder, rotation is arranged on fixed seat, the inner wall of installation cylinder is installed with the cleaning unit for cleaning contact seam after the contact of two pipe materials and the welding unit for welding contact seam after cleaning.The present application is designed to facilitate the realization of wiping to the end of pipe material by cleaning mechanism, completes pipe material end cleaning work before docking, and realizes annular debris cleaning work to contact seam before welding, improves welding tightness, and then improves the welding quality.

Description

Technical Field

[0001] This invention relates to the field of welding technology, and in particular to a welding apparatus for methanol dual-fuel ships. Background Technology

[0002] The manufacturing of methanol dual-fuel ships requires the input of many parts, especially marine mechanical parts with curved surfaces. The most common are tubular parts. When two tubular parts of the same size need to be assembled together, a welding process is required. During welding, the ends of two tubular marine mechanical parts of the same model need to be butt-jointed, and the connection of the pipes is achieved by welding at the butt joint. However, after the tubular parts are manufactured, their surfaces and ends are prone to being covered with waste debris and impurities. If they are welded directly, the weld tightness will be low, which will affect the weld quality. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a welding apparatus for methanol dual-fuel ships to solve the problem that the waste debris attached to the ends and surfaces of the above-mentioned tubular fittings will affect the welding quality.

[0004] To achieve the above objectives, the present invention provides a welding apparatus for methanol dual-fuel ships, comprising a base, a fixed seat fixedly disposed at the top of the base, and movable seats one and two slidably disposed on both sides of the fixed seat at the top of the base. Both movable seats one and two have openings for placing the pipe to be welded. Clamping units for fixing the pipe and ensuring the pipe is coaxial with the opening are provided at equal intervals inside the opening. The apparatus further comprises: The mounting cylinder is rotatably mounted on the fixed base. The inner wall of the mounting cylinder is equipped with a cleaning unit for cleaning the contact seam after two pipes come into contact and a welding unit for welding the contact seam after cleaning. Two cleaning mechanisms, arranged symmetrically at the center, are respectively mounted on the movable seat one and movable seat two and located on the side near the fixed seat, and are used to clean the ends of the two pipes before they are joined.

[0005] Preferably, the welding unit includes an electric push rod one installed on the inner wall of the mounting cylinder, the output shaft of the electric push rod one being connected to a welding gun for welding the contact seam of two pipes, and the cleaning unit includes an electric push rod two installed on the inner wall of the mounting cylinder and located on one side of the electric push rod one, the output shaft of the electric push rod two being connected to a cleaning brush plate one for cleaning the contact seam.

[0006] Preferably, the fixed base is provided with a rotating unit for driving the mounting cylinder to rotate. The rotating unit includes a motor mounted on the fixed base, a gear connected to the output shaft of the motor, and a gear ring that meshes with the gear is fixedly sleeved on the outer wall of the mounting cylinder.

[0007] Preferably, the clamping unit includes three electric push rods installed at equal intervals on the inner wall of the opening, and the output shafts of the three electric push rods are all provided with clamping plates for clamping the outer wall of the pipe.

[0008] Preferably, the top of the base has a groove, and the inside of the groove is provided with an adjusting component for driving the movement of the first and second movable seats. The adjusting component includes a threaded seat fixedly disposed at the bottom of the first and second movable seats and slidably connected to the inner wall of the groove. A dual-axis motor located below the fixed seat is provided in the groove. The output shaft of the dual-axis motor is connected to a lead screw that passes through the threaded seat, and the threaded seat is threadedly connected to the lead screw.

[0009] Preferably, the cleaning mechanism includes a rod mounted on a movable seat one and a movable seat two. The rod has a notch on the side near the pipe, and a connecting rod is installed inside the notch. A rotating shaft fixedly connected to the connecting rod is rotatably mounted on the rod. A mounting plate is fixedly connected to one end of the connecting rod. A cleaning brush plate two for cleaning the end of the pipe is mounted on the mounting plate. A locking unit for stabilizing the connecting rod is provided on the rod.

[0010] Preferably, the locking unit includes a slot formed on the connecting rod at one end away from the mounting plate, and an L-shaped insert rod extending into the slot is inserted through one side of the lifting rod. A spring is sleeved on the insert rod, and the two ends of the spring are connected to the lifting rod and the insert rod, respectively.

[0011] Preferably, the fixed base is provided with a drive unit for disengaging the locking of the insertion rod to the lifting rod and pushing the mounting plate to flip from a vertical state to a horizontal state after the first and second movable bases approach each other. The drive unit includes fixed rods fixedly installed on both sides of the fixed base in a centrally symmetrical arrangement. The fixed rods are provided with push blocks for pushing the insertion rod to rise and fall. The push blocks are trapezoidal in structure. A toothed plate is provided on the side of the fixed rod away from the push block. One end of the rotating shaft is provided with a gear two that meshes with the toothed plate.

[0012] Preferably, a stabilizing component for locking the mounting plate in a horizontal state is provided between the boom and the mounting plate. The stabilizing component includes a fixing plate installed at one end of the boom, a magnetic sheet 1 installed on the side of the fixing plate close to the mounting plate, and a magnetic sheet 2 connected to the magnetic sheet 1 provided on the side of the mounting plate away from the cleaning brush 2.

[0013] Preferably, the fixed base has slots 1 located on both sides of the mounting cylinder and distributed longitudinally, and the movable base 1 and movable base 2 have slots 2 distributed in a centrally symmetrical manner.

[0014] The beneficial effects of this invention are as follows: The clamping unit clamps the pipe and makes the pipe and the port coaxial, making it possible to align the centers of the two pipes. The design of the cleaning mechanism facilitates wiping the pipe ends, completing the cleaning work of the pipe ends before docking, effectively removing the debris attached to the surface of the pipe ends, and improving the tightness of the pipe docking. The movable seats one and two make the pipe ends dock in the installation cylinder. With the design of the cleaning unit, the annular debris cleaning work of the docking seam is achieved before welding. Then, the welding unit realizes the welding work of the docking seam, improving the welding tightness and thus improving the welding quality. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention from one perspective; Figure 2 This is a schematic diagram of the overall structure of the present invention from an upward perspective; Figure 3 This is a schematic diagram of the overall structure from another perspective of the present invention; Figure 4 For the present invention Figure 1 A sectional view; Figure 5 This is a schematic diagram of the structure of the mounting cylinder and the rotating unit in an embodiment of the present invention; Figure 6 For the present invention Figure 2 Partial structural diagram; Figure 7 For the present invention Figure 4 Enlarged structural diagram of region A in the middle; Figure 8 This is a schematic diagram of the cleaning mechanism of the present invention.

[0017] The diagram is marked as follows: 1. Base; 2. Fixed seat; 3. Movable seat one; 4. Movable seat two; 5. Through port; 6. Mounting cylinder; 7. Electric push rod one; 8. Welding gun; 9. Electric push rod two; 10. Cleaning brush plate one; 11. Gear ring; 12. Motor; 13. Gear one; 14. Electric push rod three; 15. Clamping plate; 16. Groove; 17. Dual-axis motor; 18. Lead screw; 19. Threaded seat; 20. Hanging rod; 21. Notch; 22. Connecting rod; 23. Rotating shaft; 24. Mounting plate; 25. Cleaning brush plate two; 26. Insert rod; 27. Spring; 28. Slot; 29. ​​Gear two; 30. Fixed rod; 31. Gear plate; 32. Push block; 33. Fixed plate; 34. Magnetic sheet one; 35. Magnetic sheet two; 36. Groove one; 37. Groove two. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0019] It should be noted that, unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0020] This specification provides one or more embodiments of a welding apparatus for methanol dual-fuel ships, such as... Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the device includes a base 1, a fixed seat 2 fixedly mounted on the top of the base 1, and two movable seats 3 and 4 slidably mounted on both sides of the fixed seat 2 on the top of the base 1. Both movable seats 3 and 4 have openings 5 ​​for placing the pipe to be welded. Clamping units for fixing the pipe and ensuring the pipe is coaxial with the opening 5 are evenly spaced inside the opening 5. The device is characterized by further comprising: The mounting cylinder 6 is rotatably mounted on the fixed base 2. The inner wall of the mounting cylinder 6 is equipped with a cleaning unit for cleaning the contact seam after the two pipes come into contact and a welding unit for welding the contact seam after cleaning. Two cleaning mechanisms, arranged symmetrically at the center, are respectively set on the movable seat 3 and the movable seat 4 and are located on the side near the fixed seat 2 to clean the ends of the two pipes before they are joined.

[0021] In use, when welding two pipes of the same size, the operator first inserts the pipes through the openings 5 ​​on movable seat 3 and movable seat 4 respectively. Then, the clamping unit clamps the pipes and makes them coaxial with the openings 5, thus aligning the two pipes and facilitating welding at the ends. Before the pipes are joined, the cleaning mechanism facilitates wiping the pipe ends, effectively removing debris from the pipe end surfaces and facilitating welding. Next, movable seat 3 and movable seat 4 move the two pipes synchronously, moving the pipe ends into the mounting cylinder 6, effectively joining the two pipes inside the mounting cylinder 6. The cleaning unit cleans the joint at the joining point, effectively removing debris. Finally, the welding unit welds the joint, improving the weld tightness and thus the weld quality.

[0022] In embodiments of the present invention, such as Figure 2 , Figure 4 and Figure 5 As shown, the welding unit includes an electric push rod 7 installed on the inner wall of the mounting cylinder 6. The output shaft of the electric push rod 7 is connected to a welding gun 8 for welding the contact seam of two pipes. The cleaning unit includes an electric push rod 9 installed on the inner wall of the mounting cylinder 6 and located on one side of the electric push rod 7. The output shaft of the electric push rod 9 is connected to a cleaning brush 10 for cleaning the contact seam. With this design, after the two pipes are joined inside the mounting cylinder 6, the electric push rod 9 and the electric push rod 7 are activated, causing the cleaning brush 10 to move and contact the joint position of the two pipes, and the welding gun 8 to move to the joint position. Then, the mounting cylinder 6 drives the welding gun 8 and the cleaning brush 10 to rotate, achieving rotation around the joint position. After the cleaning brush 10 cleans the joint position, the welding gun 8 is activated to perform welding at the joint position. This design performs cleaning before welding, improving the cleanliness of the pipes, increasing the weld tightness, and improving the weld quality.

[0023] In embodiments of the present invention, such as Figure 1 , Figure 2 and Figure 3As shown, the fixed base 2 is equipped with a rotating unit for driving the mounting cylinder 6 to rotate. The rotating unit includes a motor 12 mounted on the fixed base 2, and a gear 13 connected to the output shaft of the motor 12. A gear ring 11 that meshes with the gear 13 is fixedly sleeved on the outer wall of the mounting cylinder 6. With this design, by starting the motor 12, the motor 12 drives the gear 13 to rotate. Through the meshing connection between the gear 13 and the gear ring 11, the gear ring 11 will rotate, thereby causing the mounting cylinder 6 to rotate. This will drive the cleaning brush 10 and the welding gun 8 to rotate synchronously, facilitating the rotation of the cleaning brush 10 and the welding gun 8 around the pipe, thus realizing the circumferential welding of the two pipes.

[0024] In embodiments of the present invention, such as Figure 1 and Figure 3 As shown, the clamping unit includes three electric push rods 14 equidistantly installed on the inner wall of the opening 5. Each electric push rod 14 has an output shaft equipped with a clamping plate 15 for clamping the outer wall of the pipe. This design allows multiple electric push rods 14 to be activated, causing the clamping plates 15 to move closer to the pipe, thus clamping and fixing it. Simultaneously, it ensures the pipe is coaxial with the opening 5 and enables alignment of the two pipes, facilitating the docking of their ends.

[0025] In embodiments of the present invention, such as Figure 1 , Figure 4 and Figure 6 As shown, the top of the base 1 has a groove 16. The inside of the groove 16 is an adjusting component for driving the movement of the first movable seat 3 and the second movable seat 4. The adjusting component includes a threaded seat 19 fixedly disposed at the bottom of the first movable seat 3 and the second movable seat 4 and slidably connected to the inner wall of the groove 16. The groove 16 is provided with a dual-axis motor 17 located below the fixed seat 2. The output shaft of the dual-axis motor 17 is connected to a lead screw 18 that passes through the threaded seat 19. The threaded seat 19 and the lead screw 18 are threadedly connected. It should be noted that the threads of the two lead screws 18 are in opposite directions. With this design, after the pipe is fixedly installed inside the port 5, the dual-axis motor 17 is started. The dual-axis motor 17 drives the lead screw 18 to rotate. Through the threaded connection between the lead screw 18 and the threaded seat 19, and the sliding action between the threaded seat 19 and the groove 16, the two threaded seats 19 will move closer to each other. Then, the threaded seats 19 will realize the relative movement of the moving seat 1 3 and the moving seat 2 4, which facilitates the movement of the two pipes closer to each other, realizes the docking of the two pipes, and thus provides the possibility for welding the joint.

[0026] In embodiments of the present invention, such as Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 7 As shown, the cleaning mechanism includes a hanger 20 mounted on a movable base 3 and a movable base 4. A notch 21 is provided on the side of the hanger 20 near the pipe. A connecting rod 22 is installed inside the notch 21. A rotating shaft 23, fixedly connected to the connecting rod 22, is rotatably mounted on the hanger 20. A mounting plate 24 is fixedly connected to one end of the connecting rod 22. A cleaning brush 25 for cleaning the pipe end is mounted on the mounting plate 24. A locking unit for stabilizing the connecting rod 22 is provided on the hanger 20. With this design, the worker installs the cleaning brush 25 on the mounting plate 24. The locking unit secures the connecting rod 22, ensuring the cleaning brush 25 is vertical. Then, the pipe is placed in the opening 5, allowing the pipe end to contact the cleaning brush 25, achieving close contact and enabling the cleaning brush 25 to clean the pipe end. This prevents debris and impurities from adhering to the pipe end, making it possible for the two pipes to be tightly joined.

[0027] In embodiments of the present invention, such as Figure 7 As shown, the locking unit includes a slot 28 formed on the connecting rod 22 at one end away from the mounting plate 24. An L-shaped insert 26 extending into the slot 28 is inserted through one side of the lifting rod 20. A spring 27 is fitted onto the insert 26, with its two ends connected to the lifting rod 20 and the insert 26, respectively. This design allows the connecting rod 22 to be locked by inserting the insert 26 into the slot 28 on the connecting rod 22, preventing it from swinging and enabling close contact between the cleaning brush plate 25 and the end of the pipe, thus facilitating the wiping of the pipe end.

[0028] In embodiments of the present invention, such as Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 7As shown, the fixed base 2 is equipped with a drive unit for disengaging the locking of the insertion rod 26 to the lifting rod 20 and pushing the mounting plate 24 from a vertical state to a horizontal state after the moving base 1 3 and the moving base 2 4 approach each other. The drive unit includes a fixed rod 30 fixedly installed on both sides of the fixed base 2 and arranged centrally symmetrically. The fixed rod 30 is equipped with a push block 32 for pushing the insertion rod 26 up and down. The push block 32 has a trapezoidal structure. The fixed rod 30 is equipped with a toothed plate 31 on the side away from the push block 32. One end of the rotating shaft 23 is equipped with a gear 29 that meshes with the toothed plate 31. With this design, when the movable seat 3 and movable seat 4 move the pipe closer to the fixed seat 2, they will simultaneously move the mounting plate 24, the cleaning brush 25, and the insertion rod 26. When the insertion rod 26 contacts the push block 32, due to the trapezoidal structure of the push block 32, the insertion rod 26 slides on the trapezoidal hypotenuse of the push block 32, thereby allowing the insertion rod 26 to slide on the hanger 20. This facilitates one end of the insertion rod 26 disengaging from the slot 28 and breaking the lock on the connecting rod 22. At the same time, the spring 27 will be in a stretched state. When the insertion rod 26 disengages from the connecting rod 22, the locking mechanism will be activated. When the connecting rod 22 is locked, the second gear 29 will contact the toothed plate 31. As the lifting rod 20 drives the second gear 29 to continue moving, the toothed plate 31 will mesh with the second gear 29, which will cause the second gear 29 to rotate during the movement. This will allow the second gear 29 to drive the rotating shaft 23 to rotate. The rotating shaft 23 will cause the connecting rod 22 to flip, which will cause the mounting plate 24 to drive the cleaning brush plate 25 to flip 90 degrees, disconnecting the cleaning brush plate 25 from the stop of the pipe end, effectively making it possible to connect the ends of the two pipes.

[0029] In embodiments of the present invention, such as Figure 1 , Figure 2 and Figure 3 As shown, a stabilizing element for locking the mounting plate 24 in a horizontal state is provided between the boom 20 and the mounting plate 24. The stabilizing element includes a fixing plate 33 installed at one end of the boom 20. A magnetic sheet 34 is installed on the side of the fixing plate 33 near the mounting plate 24, and a magnetic sheet 35 connected to the magnetic sheet 34 is provided on the side of the mounting plate 24 away from the cleaning brush 25. With this design, when the connecting rod 22 rotates the mounting plate 24 and the cleaning brush 25 by 90 degrees, the magnetic sheet 35 on the mounting plate 24 will rotate synchronously, thereby causing the magnetic sheet 35 to contact the magnetic sheet 34 on the fixing plate 33, realizing the adsorption connection between the magnetic sheet 34 and the magnetic sheet 35, thus keeping the mounting plate 24 stably in a horizontal state and facilitating the docking of the two pipe ends.

[0030] In embodiments of the present invention, such as Figure 1 , Figure 2 and Figure 3As shown, the fixed base 2 has slots 36 arranged longitudinally on both sides of the mounting cylinder 6, and the movable base 3 and movable base 4 have slots 37 arranged symmetrically on the center. This design, through the slots 36 and 37, facilitates the synchronous movement of the mounting plate 24 and cleaning brush plate 25 when the movable base 3 and movable base 4 approach the fixed base 2, allowing space for the mounting plate 24 and cleaning brush plate 25 and preventing obstruction of the mounting plate 24, thus facilitating pipe connection.

[0031] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in the details for the sake of brevity.

[0032] This invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A welding device for methanol dual-fuel ships, comprising a base (1), a fixed seat (2) fixedly disposed at the top of the base (1), and movable seats one (3) and two (4) slidably disposed on both sides of the fixed seat (2) at the top of the base (1), wherein each movable seat one (3) and movable seat two (4) is provided with an opening (5) for placing a pipe to be welded, and clamping units for fixing the pipe to be welded and making the pipe to be welded coaxial with the opening (5) are provided at equal intervals inside the opening (5), characterized in that, Also includes: The mounting cylinder (6) is rotatably mounted on the fixed seat (2). The inner wall of the mounting cylinder (6) is equipped with a cleaning unit for cleaning the contact seam after two pipes to be welded come into contact and a welding unit for welding the contact seam after cleaning. Two cleaning mechanisms are centrally symmetrically arranged and are respectively set on the side of the movable seat one (3) and movable seat two (4) near the fixed seat (2). The two cleaning mechanisms are used to clean the ends of the two pipes to be welded before docking. The cleaning mechanism includes a rod (20). The rod (20) of the cleaning mechanism on the left side is installed on the upper side of the movable seat one (3), and the rod (20) of the cleaning mechanism on the right side is installed on the lower side of the movable seat two (4). The rod (20) has a notch (21) on the side near the pipe to be welded. A connecting rod (22) is installed inside the notch (21). A rotating shaft (23) fixedly connected to the connecting rod (22) is rotatably installed on the rod (20). An installation plate (24) is fixedly connected to one end of the connecting rod (22). A cleaning brush plate two (25) for cleaning the end of the pipe to be welded is installed on the installation plate (24). A locking unit for stabilizing the connecting rod (22) is provided on the rod (20). The locking unit includes a slot (28) on the connecting rod (22) away from the mounting plate (24), and an L-shaped insert (26) extending into the slot (28) is inserted through one side of the lifting rod (20). A spring (27) is sleeved on the insert (26), and the two ends of the spring (27) are connected to the lifting rod (20) and the insert (26) respectively. The fixed base (2) is provided with a drive unit for disengaging the locking of the plug rod (26) to the lifting rod (20) and pushing the mounting plate (24) to flip from a vertical state to a horizontal state when the moving base one (3) and the moving base two (4) approach each other. The drive unit includes a fixed rod (30) fixedly installed on both sides of the fixed base (2) and arranged centrally symmetrically. The fixed rod (30) is provided with a push block (32) for pushing the plug rod (26) up and down. The push block (32) has a trapezoidal structure. The fixed rod (30) is provided with a toothed plate (31) on the side away from the push block (32). One end of the rotating shaft (23) is provided with a gear two (29) that meshes with the toothed plate (31). The fixed seat (2) has slots 1 (36) located on both sides of the mounting cylinder (6) and distributed longitudinally. The movable seat 1 (3) and movable seat 2 (4) have slots 2 (37) distributed in a centrally symmetrical manner. The slot 2 (37) on the movable seat 1 (3) is located on its lower side, and the slot 2 (37) on the movable seat 2 (4) is located on its upper side. The design of slots 1 (36) and slot 2 (37) makes room for the mounting plate (24) and cleaning brush plate 2 (25).

2. The welding apparatus for methanol dual-fuel ships according to claim 1, characterized in that, The welding unit includes an electric push rod 1 (7) installed on the inner wall of the mounting cylinder (6), the output shaft of the electric push rod 1 (7) is connected to a welding gun (8) for welding the contact seam of two pipes to be welded, and the cleaning unit includes an electric push rod 2 (9) installed on the inner wall of the mounting cylinder (6) and located on one side of the electric push rod 1 (7), the output shaft of the electric push rod 2 (9) is connected to a cleaning brush 1 (10) for cleaning the contact seam.

3. The welding apparatus for methanol dual-fuel ships according to claim 1, characterized in that, The fixed base (2) is provided with a rotating unit for driving the mounting cylinder (6) to rotate. The rotating unit includes a motor (12) mounted on the fixed base (2). The output shaft of the motor (12) is connected to a gear (13). The outer wall of the mounting cylinder (6) is fixedly sleeved with a gear ring (11) that meshes with the gear (13).

4. The welding apparatus for methanol dual-fuel ships according to claim 1, characterized in that, The clamping unit includes three electric push rods (14) installed at equal intervals on the inner wall of the opening (5), and the output shafts of the three electric push rods (14) are all provided with clamping plates (15) for clamping the outer wall of the pipe to be welded.

5. The welding apparatus for methanol dual-fuel ships according to claim 1, characterized in that, The top of the base (1) is provided with a groove (16). Inside the groove (16) is an adjusting component for driving the movement of the first moving seat (3) and the second moving seat (4). The adjusting component includes a threaded seat (19) fixedly disposed at the bottom of the first moving seat (3) and the second moving seat (4) and slidably connected to the inner wall of the groove (16). Inside the groove (16) is a dual-axis motor (17) located below the fixed seat (2). The output shaft of the dual-axis motor (17) is connected to a lead screw (18) that passes through the threaded seat (19). The threaded seat (19) is threadedly connected to the lead screw (18).

6. The welding apparatus for methanol dual-fuel ships according to claim 1, characterized in that, A stabilizing element for locking the mounting plate (24) in a horizontal state is provided between the boom (20) and the mounting plate (24). The stabilizing element includes a fixing plate (33) installed at one end of the boom (20). A magnetic sheet (34) is installed on the side of the fixing plate (33) close to the mounting plate (24). A magnetic sheet (35) connected to the magnetic sheet (34) is provided on the side of the mounting plate (24) away from the cleaning brush plate (25).

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