An FPSO vessel transverse automatic welding apparatus and method of use thereof

Abstract

The application discloses an FPSO ship transverse automatic welding device, which comprises a mounting beam and a welding gun, and a transverse moving part is arranged on the surface of the mounting beam, which is used for adjusting the transverse position of the welding gun, so as to facilitate welding of different positions of the FPSO ship. The transverse position of the welding gun is adjusted through the transverse moving part, so that the welding gun can weld different positions of the FPSO ship in the transverse direction. Meanwhile, the vertical screw is driven to rotate by the rotating motor, so that the screw sleeve drives the welding gun to move up and down through the angle adjusting part, so that the welding gun can weld different positions of the FPSO ship in the vertical direction. Therefore, when the FPSO ship is welded, the transverse welding device does not need to be removed from the FPSO ship, and the connection between the transverse position and the vertical position of the FPSO ship can be automatically welded, so that a large amount of time wasted in removing and fixing the transverse welding device is avoided, and the welding period of the FPSO ship is increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of FPSO ship welding technology, and particularly relates to a FPSO ship transverse automatic welding device and a use method thereof. BACKGROUND

[0002] FPSO (Floating Production Storage and Offloading) is a key facility for offshore oil development, mainly used for the exploitation, processing, storage and transportation of offshore oil, natural gas and other energy sources. It is widely used in the exploitation of offshore oil and natural gas. It is difficult and costly to build a fixed oil platform, and the cost of construction is high. FPSO ships can be flexibly towed to designated sea areas for installation work, and can be moved to other sea areas in the later stage as the exploitation of oil and gas fields progresses, so that the FPSO ship has high mobility and can be reused.

[0003] FPSO ships are huge in size, and usually use welding technology to weld steel plates together to build the hull, side, deck and bulkhead of the FPSO ship, thereby forming the overall frame structure of the FPSO ship. The steel plates welded together jointly bear the load of the ship's own weight, oil storage and equipment, etc., to ensure the floating and stability of the ship at sea.

[0004] When welding the FPSO ship, a transverse welding device is usually used. The transverse welding device is fixed on the FPSO ship, and a welding gun fixed on the transverse welding device is used to weld the connection of the FPSO ship. The transverse movement mechanism in the transverse welding device moves the welding gun horizontally so as to weld the horizontal connection of the FPSO ship.

[0005] However, during the welding process of the FPSO ship, the transverse welding device needs to be removed from the FPSO ship and fixed at the next welding position due to the different welding positions of the FPSO ship. During this process, a lot of time is spent on removing and fixing the transverse welding device, and the transverse welding device cannot weld the FPSO ship during the removal and fixing process, resulting in an increase in the welding cycle of the FPSO ship. Too many times of removal and fixing will increase the workload of the workers. Based on the above problems, the present application provides a FPSO ship transverse automatic welding device and a use method thereof. SUMMARY

[0006] In view of the deficiencies of the prior art, the present application provides a FPSO ship transverse automatic welding device and a use method thereof to solve the problems raised in the background art.

[0007] To achieve the above purpose, the present application adopts the following technical solutions:

[0008] The application discloses a FPSO ship transverse automatic welding equipment, which comprises a mounting beam and a welding gun, wherein the surface of the mounting beam is provided with a transverse moving part for adjusting the transverse position of the welding gun, facilitating welding at different positions of the FPSO ship.

[0009] Preferably, the transverse moving part comprises a U-shaped mounting plate arranged at the front side of the mounting beam, and the electromagnet one is fixedly arranged at the front side of the U-shaped mounting plate.

[0010] Preferably, the connecting part comprises a driving bevel gear fixedly arranged at the surface of the rotating shaft, and the surface of the driving bevel gear is engaged with a driven bevel gear.

[0011] Preferably, the angle adjusting component comprises an L-shaped plate fixedly installed on the front side of the screw sleeve, an electric push rod two is fixedly arranged on the front side of the L-shaped plate, a connecting sleeve is fixedly arranged at the output end of the electric push rod two, a connecting shaft is rotatably arranged in the connecting sleeve, a fixing sleeve is rotatably arranged on the surface of the connecting shaft, a guide rod is fixedly arranged on the front side of the fixing sleeve, the guide rod is slidably arranged in the L-shaped plate, a mounting seat is fixedly arranged on the surface of the connecting shaft, the welding gun is fixedly installed in the mounting seat, a coil spring is connected between the front side of the mounting seat and the surface of the connecting shaft, a mounting column is fixedly arranged on the rear side of the mounting seat, metal balls are rotatably arranged in the mounting column, and a limiting plate is fixedly arranged on the rear side of the mounting column.

[0012] Preferably, triangular grooves are arranged on the rear side of the locking tooth plate and the front side of the connecting tooth plate, the locking tooth plate and the connecting tooth plate are made of metal material, and the locking tooth plate and the connecting tooth plate are circular in shape.

[0013] Preferably, mounting holes for mounting the metal balls are arranged on the rear end of the mounting column, and limiting holes for limiting the metal balls are arranged on the surface of the limiting plate.

[0014] Preferably, the number of limiting rollers is four, the four limiting rollers are symmetrically distributed, limiting grooves are arranged on the surface of the limiting roller, limiting convex strips are arranged on the surface of the mounting beam, and the limiting grooves are in contact with the limiting convex strips.

[0015] Preferably, fixed seats are fixedly arranged on the left and right ends of the mounting beam, a rectangular groove is arranged on the rear side of the fixed seat, and a second electromagnet is fixedly arranged in the rectangular groove.

[0016] A use method of an FPSO ship transverse automatic welding equipment, comprising the following steps:

[0017] Step one: the mounting beam is fixed on the FPSO ship through the second electromagnet in the fixed seat, the welding gun is driven to the FPSO ship by the angle adjusting component, so that the welding gun reaches the welding position of the FPSO ship, and the angle of the welding gun is adjusted by the angle adjusting component according to the arc surface and the vertical surface of the FPSO ship, so that the welding gun is horizontally aligned with the welding position of the FPSO ship;

[0018] Step two: the U-shaped fixed plate is moved by the transverse moving component, so that the U-shaped fixed plate drives the rotating motor and the vertical screw rod to move, the angle adjusting component is driven to move by the screw sleeve, the welding gun is driven to move transversely by the angle adjusting component, so that the welding gun welds different positions of the FPSO ship, and the connecting component is in contact with the locking effect, so that the rotating shaft in the transverse moving assembly does not drive the U-shaped fixed plate to rotate.

[0019] Step three: when welding is needed at different vertical positions of the FPSO ship, the vertical screw is rotated by the rotating motor drive output end, the angle adjusting component is moved upward by the screw sleeve, the moving direction of the screw sleeve is guided by the limiting sliding sleeve and the limiting sliding rail, the welding gun is moved upward by the angle adjusting component, and the welding gun is moved to the next vertical welding position of the FPSO ship;

[0020] Step four: when welding is needed at the upper position, the welding gun is moved forward by the angle adjusting component, after the welding gun is reset, the horizontal moving component is reversely reset, the rotating shaft is reversely rotated, the U-shaped fixing plate is rotated by the connecting component after locking, the angle adjusting component is circularly moved by the rotating motor and the vertical screw, the welding gun is moved by the angle adjusting component, the U-shaped fixing plate is rotated by one hundred and eighty degrees, and the upper position can be welded.

[0021] Compared with the prior art, the FPSO ship transverse automatic welding equipment and the use method have the following beneficial effects:

[0022] 1. The FPSO ship transverse automatic welding equipment and the use method adjust the transverse position of the welding gun by the horizontal moving component, the welding gun is welded at different transverse positions of the FPSO ship, the vertical screw is rotated by the rotating motor drive, the screw sleeve moves up and down by the angle adjusting component, the welding gun is welded at different vertical positions of the FPSO ship, and the horizontal welding device can be automatically welded at the transverse position and the vertical position of the FPSO ship without being removed from the FPSO ship, so that the horizontal welding device is not removed and fixed, the time is saved, and the welding period of the FPSO ship is increased.

[0023] 2. The FPSO ship transverse automatic welding equipment and the use method can adjust the angle of the welding gun by the angle adjusting component, the welding can be applied to the vertical surface and the inclined surface of the FPSO ship, the angle of the welding gun is not adjusted manually in the adjusting process, the welding gun can be self-adaptively adjusted, the time for adjusting the angle of the welding gun is saved, the welding period of the FPSO ship is reduced, the workload of the workers is reduced, and the horizontal welding device is more flexible to use.

[0024] 3. The FPSO ship transverse automatic welding equipment and the use method can control the rotation of the U-shaped fixing plate by the connecting component, the upper and lower positions of the mounting beam can be welded, the welding position of the horizontal welding device on the FPSO ship is larger, the horizontal welding device is removed and fixed less frequently, and the welding period of the FPSO ship is reduced. Attached Figure Description

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

[0026] Figure 2 This is a schematic diagram of the longitudinal cross-section of the structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the lateral moving component structure of the present invention;

[0028] Figure 4 This is a schematic diagram of the structural connection components of the present invention;

[0029] Figure 5 This is a partial structural diagram of the connecting component of the present invention;

[0030] Figure 6 This is a schematic diagram of the angle adjustment component of the present invention;

[0031] Figure 7 This is a partial structural diagram of the angle adjustment component of the present invention.

[0032] In the diagram: 1. Mounting beam; 2. Lateral moving component; 21. U-shaped mounting plate; 22. Limiting roller; 23. Drive motor; 24. Rolling gear; 25. Gear rail; 26. Rotating shaft; 3. U-shaped fixing plate; 4. Electromagnet one; 5. Rotary motor; 6. Vertical screw; 7. Screw sleeve; 8. Limiting sleeve; 9. Limiting rail; 10. Connecting component; 101. Driving bevel gear; 102. Driven bevel gear; 103. Connecting gear plate; 104. Rotating shaft; 105. Locking gear plate; 106. Limiting block; 107. Connecting groove; 108. Roller; 109. Fixed shaft; 1010. Moving plate; 1011. Electric push rod one; 11. Angle adjustment component; 111. L-shaped plate; 112. Electric push rod two; 113. Connecting sleeve; 114. Connecting shaft; 115. Fixed sleeve; 116. Guide rod; 117. Mounting seat; 118. Mounting column; 119. Metal ball; 1110. Limiting plate; 1111. Coil spring; 12. Fixed seat; 13. Welding torch. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Reference Figures 1-7The utility model provides a FPSO ship transverse automatic welding equipment, including installation crossbeam 1 and welding torch 13, installation crossbeam 1 surface is provided with transverse moving part 2, and transverse moving part 2 is used for adjusting the transverse position of welding torch 13, and it is convenient to weld the different positions of FPSO ship, and installation crossbeam 1 front is provided with U-shaped fixed plate 3, and U-shaped fixed plate 3 rear side is adsorbed with electromagnet no.The roller 108 drives the locking gear plate 105 to separate from the connecting gear plate 103, so that the rotating shaft 26 cannot drive the U-shaped fixing plate 3 to rotate. When the electric push rod 1011 drives the roller 108 to move to the rear side through the moving plate 1010 and the fixed shaft 109, the locking gear plate 105 contacts the connecting gear plate 103. At this time, the rotating shaft 26 drives the passive bevel gear 102 through the driving bevel gear 101 to rotate, and the passive bevel gear 102 drives the locking gear plate 105 to rotate through the connecting gear plate 103. The locking gear plate 105 drives the rotating shaft 104 to rotate through the limiting block 106 and the sliding groove, and drives the U-shaped fixing plate 3 to rotate through the rotating shaft 104. Thus, the driving motor 23 drives the U-shaped fixing plate 3 to flip, and the U-shaped fixing plate 3 is rotated according to the welding condition of the FPSO ship. The connecting component 10 is used to rotate the U-shaped fixing plate 3. The driving motor 23 drives the rolling gear 24 to roll on the surface of the toothed rail 25 through the rotating shaft 26, so that the rotating shaft 26 drives the U-shaped fixing plate 3 to move through the U-shaped mounting plate 21, the electromagnet 4 and the rotating shaft 104. The U-shaped fixing plate 3 drives the welding gun 13 to move through the vertical screw rod 6, the screw sleeve 7 and the angle adjusting component 11. Thus, the welding gun 13 welds different positions of the FPSO ship in the transverse direction. The screw sleeve 7 is provided with the limiting sliding sleeve 8 at the rear side. The limiting sliding sleeve 8 is provided with the limiting sliding rail 9 which is fixedly installed in the U-shaped fixing plate 3. The screw sleeve 7 is provided with the angle adjusting component 11 at the front side. The angle adjusting component 11 is used to adjust the angle of the welding gun 13, so that the welding gun 13 is horizontally aligned with the welding position of the FPSO ship.

[0035] Specific, the angle adjusting component 11 includes the L-shaped plate 111 fixedly installed on the front side of the screw sleeve 7, the front side of the L-shaped plate 111 is fixedly provided with the electric push rod two 112, the output end of the electric push rod two 112 is fixedly provided with the connecting sleeve 113, the connecting sleeve 113 is rotatably provided with the connecting shaft 114 in the inside, the surface of the connecting shaft 114 is rotatably provided with the fixed sleeve 115, the front side of the fixed sleeve 115 is fixedly provided with the guide rod 116, the guide rod 116 is slidably arranged in the inside of the L-shaped plate 111, the surface of the connecting shaft 114 is fixedly provided with the mounting seat 117, the welding gun 13 is fixedly installed in the inside of the mounting seat 117, the mounting seat 117 is connected with the surface of the connecting shaft 114 between the front side and the rear side through the coil spring 1111, the rear side of the mounting seat 117 is fixedly provided with the mounting column 118, the mounting column 118 is rotatably provided with the metal ball 119 in the inside, the rear side of the mounting column 118 is fixedly provided with the limiting plate 1110, the rear end of the mounting column 118 is provided with the mounting hole for mounting the metal ball 119, the surface of the limiting plate 1110 is provided with the limiting hole for limiting the metal ball 119, the inner wall of the limiting plate 1110 is overlapped with the surface of the metal ball 119, the electric push rod two 112 drives the mounting seat 117 to move to the FPSO ship welding position through the connecting sleeve 113 and the connecting shaft 114, and the mounting seat 117 is guided through the fixed sleeve 115 and the guide rod 116, if the FPSO ship welding position is located on the vertical plane, the four metal balls 119 are in contact with the FPSO ship at the same time, at this time, the welding gun 13 reaches the welding position, if the welding position is located on the arc surface of the FPSO ship, the upper metal ball 119 is first in contact with the FPSO ship, the mounting seat 117 is rotated through the connecting shaft 114, so that the lower metal ball 119 is in contact with the FPSO ship, at this time, the welding gun 13 is aligned with the welding seam of the FPSO ship, thereby avoiding the angle difference between the welding gun 13 and the FPSO ship welding position, which causes the welding quality of the welding gun 13 to decrease, thereby ensuring that the FPSO ship welding quality is better.

[0036] Specific, the mounting beam 1 is fixedly provided with the fixed seat 12 at both ends, the rear side of the fixed seat 12 is provided with a rectangular groove, and the electromagnetic iron two is fixedly arranged in the rectangular groove, so that the mounting beam 1 can be fixed on the FPSO ship through the electromagnetic iron two, and when the electromagnetic iron two is powered off, the electromagnetic iron two loses the magnetic force, so that the mounting beam 1 is convenient to take down, and the mounting beam 1 is convenient and fast to take down and fix.

[0037] A use method of the FPSO ship transverse automatic welding equipment, including the following steps:

[0038] Step one: through the electromagnet two inside the fixed seat 12, the installation beam 1 is fixed on the FPSO ship, through the angle adjusting component 11, the welding gun 13 is driven to FPSO ship and is close to, so that the welding gun 13 reaches the welding position of FPSO ship, and according to the arc surface and vertical surface of FPSO ship, the angle of welding gun 13 is adjusted through the angle adjusting component 11, so that the welding gun 13 and the welding position of FPSO ship keep horizontal alignment;

[0039] Step two: through the transverse moving component 2, the U-shaped fixed plate 3 is moved, so that the U-shaped fixed plate 3 drives the rotating motor 5 and the vertical screw rod 6 to move, and the screw sleeve 7 drives the angle adjusting component 11 to move, so that the angle adjusting component 11 drives the welding gun 13 to move horizontally, so that the welding gun 13 welds different positions of FPSO ship, and the connecting component 10 contacts the locking effect, so that the rotating shaft 26 in the transverse moving assembly does not drive the U-shaped fixed plate 3 to rotate;

[0040] Step three: when the vertical different positions of FPSO ship need to be welded, the rotating motor 5 drives the output end to drive the vertical screw rod 6 to rotate, so that the screw sleeve 7 drives the angle adjusting component 11 to move upwards, and the limiting sliding sleeve 8 and the limiting sliding rail 9 guide the moving direction of the screw sleeve 7, so that the angle adjusting component 11 drives the welding gun 13 to move upwards, so that the welding gun 13 moves to the next welding position of the vertical FPSO ship;

[0041] Step four: when the position above needs to be welded, the angle adjusting component 11 drives the welding gun 13 to move forward, after the welding gun 13 resets, the transverse moving component 2 reverses and resets, so that the rotating shaft 26 reverses and rotates, the rotating shaft 26 drives the U-shaped fixed plate 3 to rotate through the locking connecting component 10, so that the U-shaped fixed plate 3 drives the angle adjusting component 11 to do circular motion through the rotating motor 5 and the vertical screw rod 6, and the welding gun 13 is moved through the angle adjusting component 11, so that the U-shaped fixed plate 3 rotates one hundred and eighty degrees, that is, the position above can be welded.

[0042] In use: when the FPSO ship needs to be welded, the output end of the electric push rod two 112 drives the connecting sleeve 113 to move to the rear side, so that the connecting shaft 114 pushes the mounting seat 117 to move to the welding position of the FPSO ship, at the same time, the connecting shaft 114 drives the guide rod 116 to slide to the rear side in the L-shaped plate 111, so that the metal ball 119 contacts the FPSO ship, if the welding position of the FPSO ship is located on the vertical plane, the four metal balls 119 contact the FPSO ship at the same time, at this time, the welding gun 13 reaches the welding position, if the welding position is located at the arc surface of the FPSO ship, the upper metal ball 119 first contacts the FPSO ship, the electric push rod two 112 continues to push, so that the mounting seat 117 rotates in the connecting sleeve 113 and the fixed sleeve 115 through the connecting shaft 114, so that the lower metal ball 119 contacts the FPSO ship, at this time, the welding gun 13 is aligned with the welding seam of the FPSO ship, then the output end of the driving motor 23 drives the rotating shaft 26 to rotate, and drives the rolling gear 24 to rotate through the rotating shaft 26, so that the rolling gear 24 rolls on the surface of the toothed rail 25, the rolling gear 24 drives the rotating shaft 26 to move, and the U-shaped mounting plate 21 moves through the rotating shaft 26, so that the U-shaped mounting plate 21 drives the U-shaped fixing plate 3 to move through the electromagnet one 4 and the rotating shaft 104, the U-shaped fixing plate 3 drives the screw sleeve 7 to move through the vertical screw rod 6, so that the screw sleeve 7 drives the welding gun 13 to move through the angle adjusting part 11, so that the welding gun 13 horizontally welds the welding seam of the FPSO ship, in this process, the connecting tooth plate 103 and the locking tooth plate 105 are in a separated state, when the FPSO ship needs to be welded at different positions, the welding gun 13 is reset through the angle adjusting part 11, and the vertical screw rod 6 is driven to rotate through the rotating motor 5, so that the screw sleeve 7 drives the welding gun 13 to move upward through the angle adjusting part 11, and the screw sleeve 7 is limited through the limiting sliding sleeve 8 and the limiting sliding rail 9, so that the welding gun 13 moves to the next welding position of the FPSO ship, when the position above the mounting beam 1 needs to be welded, the output end of the electric push rod one 1011 is driven to shorten, so that the electric push rod one 1011 drives the fixed shaft 109 to move to the rear side, so that the fixed shaft 109 drives the locking tooth plate 105 to contact the connecting tooth plate 103 through the roller 108, at this time, the driving motor 23 drives the rotating shaft 26 to rotate in reverse through the output end, so that the rotating shaft 26 drives the rolling gear 24 to rotate, so that the rolling gear 24 reversely rolls, so that the U-shaped fixing plate 3 resets the angle adjusting part 11 through the vertical screw rod 6 and the screw sleeve 7, so that the welding gun 13 resets, at the same time, the rotating shaft 26 drives the driven bevel gear 102 to rotate through the driving bevel gear 101, and drives the connecting tooth plate 103 to rotate through the driven bevel gear 102, so that the connecting tooth plate 103 drives the locking tooth plate 105 to rotate,The locking tooth plate 105 drives the rotating shaft 104 to rotate through the limiting block 106 and the sliding groove, and drives the U-shaped fixed plate 3 to rotate through the rotating shaft 104, and when the U-shaped fixed plate 3 rotates by one hundred and eighty degrees, the U-shaped fixed plate 3 is adsorbed through the electromagnet 4, so as to weld the position above the mounting beam 1.

[0043] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one from another entity or action without necessarily requiring or implying that there is any such relationship or order between such entities or actions. Also, the terms "comprises", "comprising", or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0044] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, alternatives, and variations can be made in the embodiments without departing from the spirit and scope of the present application as defined by the appended claims and their equivalents.

Claims

1. A FPSO vessel transverse automatic welding apparatus comprising a mounting beam (1) and a welding torch (13), characterized in that, The mounting beam (1) is provided with a transverse moving part (2) on the surface, which is used for adjusting the transverse position of the welding gun (13), facilitating welding at different positions of the FPSO ship. A U-shaped fixed plate (3) is arranged at the front of the mounting beam (1), and an electromagnet (4) is adsorbed on the rear side of the U-shaped fixed plate (3). A rotary motor (5) is fixedly arranged on the top of the U-shaped fixed plate (3), and a vertical screw rod (6) is fixedly arranged on the output end of the rotary motor (5). A screw sleeve (7) is threadedly arranged on the surface of the vertical screw rod (6), and a limiting sliding sleeve (8) is fixedly arranged on the rear side of the screw sleeve (7). A limiting sliding rail (9) is slidably arranged in the limiting sliding sleeve (8), and the limiting sliding rail (9) is fixedly installed in the U-shaped fixed plate (3). An angle adjusting part (11) is arranged on the front side of the screw sleeve (7), which is used for adjusting the angle of the welding gun (13), facilitating the horizontal alignment of the welding gun (13) with the welding position of the FPSO ship. The transverse moving part (2) comprises a U-shaped mounting plate (21) arranged on the front side of the mounting beam (1), and the electromagnet (4) is fixedly installed on the front side of the U-shaped mounting plate (21). A limiting roller (22) is rotatably arranged on the rear side of the U-shaped mounting plate (21), and a drive motor (23) is fixedly arranged on the top of the U-shaped mounting plate (21). A rotating shaft (26) is fixedly arranged on the output end of the drive motor (23), and a rolling gear (24) is fixedly arranged on the surface of the rotating shaft (26). A toothed rail (25) is engagedly arranged on the surface of the rolling gear (24), and the toothed rail (25) is fixedly installed on the front side of the mounting beam (1). A connecting part (10) is arranged on the surface of the rotating shaft (26), which is used for rotating the U-shaped fixed plate (3). The connecting part (10) comprises a driving bevel gear (101) fixedly installed on the surface of the rotating shaft (26), and a driven bevel gear (102) is engagedly arranged on the surface of the driving bevel gear (101). A connecting toothed plate (103) is fixedly arranged on the front side of the driven bevel gear (102), and a rotating shaft (104) is rotatably arranged in the driven bevel gear (102). A limiting circular ring is fixedly arranged on the surface of the rotating shaft (104), and a limiting circular groove is formed in the driven bevel gear (102) and connected with the limiting circular ring. A locking toothed plate (105) is lap-jointed in the driven bevel gear (102), and a limiting block (106) is fixedly arranged in the locking toothed plate (105). A sliding groove is formed in the surface of the rotating shaft (104) and connected with the limiting block (106). A connecting groove (107) is formed on the front side of the locking toothed plate (105), and a roller (108) is lap-jointed in the connecting groove (107). A fixed shaft (109) is rotatably arranged in the roller (108), and a moving plate (1010) is fixedly arranged on the front end of the fixed shaft (109).The rear side of the moving plate (1010) is fixedly provided with an electric push rod one (1011), the output end of the electric push rod one (1011) is connected with the moving plate (1010), the electric push rod one (1011) is fixedly installed in the inside of the U-shaped mounting plate (21), the angle adjusting part (11) includes an L-shaped plate (111) fixedly installed at the front side of the screw sleeve (7), the front side of the L-shaped plate (111) is fixedly provided with an electric push rod two (112), the output end of the electric push rod two (112) is fixedly provided with a connecting sleeve (113), the inside of the connecting sleeve (113) is rotatably provided with a connecting shaft (114), the surface of the connecting shaft (114) is rotatably provided with a fixing sleeve (115), the front side of the fixing sleeve (115) is fixedly provided with a guide rod (116), the guide rod (116) is slidably arranged in the inside of the L-shaped plate (111), the surface of the connecting shaft (114) is fixedly provided with a mounting base (117), the welding gun (13) is fixedly installed in the inside of the mounting base (117), the front side of the mounting base (117) is connected with the surface of the connecting shaft (114) and is provided with a coil spring (1111), the rear side of the mounting base (117) is fixedly provided with a mounting column (118), the inside of the mounting column (118) is rotatably provided with a metal ball (119), the rear side of the mounting column (118) is fixedly provided with a limiting plate (1110), the inner wall of the limiting plate (1110) is overlapped with the surface of the metal ball (119).

2. A FPSO vessel transverse automatic welding apparatus as claimed in claim 1, characterized in that, The rear side of the locking tooth plate (105) and the front side of the connecting tooth plate (103) are provided with triangular grooves, the locking tooth plate (105) and the connecting tooth plate (103) are made of metal material, and the locking tooth plate (105) and the connecting tooth plate (103) are circular in shape.

3. A FPSO vessel transverse automatic welding apparatus according to claim 1, characterized in that, The rear end of the mounting column (118) is provided with a mounting hole for mounting the metal ball (119), and the surface of the limiting plate (1110) is provided with a limiting hole for limiting the metal ball (119).

4. A FPSO vessel transverse automatic welding apparatus according to claim 1, wherein, The number of the limiting rollers (22) is four, the four limiting rollers (22) are symmetrically distributed, the surface of the limiting roller (22) is provided with a limiting groove, the surface of the mounting beam (1) is provided with a limiting convex strip, and the limiting groove is in contact with the limiting convex strip.

5. A FPSO vessel transverse automatic welding apparatus as claimed in claim 1, wherein, The left and right ends of the mounting beam (1) are fixedly provided with fixed seats (12), the rear side of the fixed seat (12) is provided with a rectangular groove, and the electromagnetic iron two is fixedly arranged in the rectangular groove.

6. A method of using a FPSO vessel transverse automatic welding apparatus as claimed in claim 5, wherein, The steps include the following steps: Step one: the mounting beam (1) is fixed on the FPSO ship through the electromagnetic iron two in the fixed seat (12), the welding gun (13) is driven to approach the FPSO ship through the angle adjusting component (11), so that the welding gun (13) reaches the welding position of the FPSO ship, and the angle of the welding gun (13) is adjusted through the angle adjusting component (11) according to the arc surface and the vertical surface of the FPSO ship, so that the welding gun (13) is horizontally aligned with the welding position of the FPSO ship; Step two: the U-shaped fixed plate (3) is moved through the transverse moving component (2), so that the U-shaped fixed plate (3) drives the rotating motor (5) and the vertical screw rod (6) to move, and the angle adjusting component (11) is moved through the screw sleeve (7), so that the angle adjusting component (11) drives the welding gun (13) to move transversely, so that the welding gun (13) welds different positions of the FPSO ship, and the connecting component (10) contacts the locking effect, so that the rotating shaft (26) in the transverse moving assembly does not drive the U-shaped fixed plate (3) to rotate; Step three: when it is necessary to weld different positions of the FPSO ship vertically, the vertical screw rod (6) is driven to rotate through the rotating motor (5), so that the screw sleeve (7) drives the angle adjusting component (11) to move upwards, and the moving direction of the screw sleeve (7) is guided through the limiting sliding sleeve (8) and the limiting sliding rail (9), so that the angle adjusting component (11) drives the welding gun (13) to move upwards, so that the welding gun (13) moves to the next welding position of the FPSO ship vertically. Step four: when the position above needs to be welded, the angle adjusting part (11) drives the welding gun (13) to move forward, after the welding gun (13) is reset, the horizontal moving part (2) is reset in the reverse direction, so that the rotating shaft (26) rotates in the reverse direction, the rotating shaft (26) drives the U-shaped fixed plate (3) to rotate through the locked connecting part (10), so that the U-shaped fixed plate (3) drives the angle adjusting part (11) to make circular motion through the rotating motor (5) and the vertical screw rod (6), and drives the welding gun (13) to move through the angle adjusting part (11), so that the U-shaped fixed plate (3) rotates one hundred and eighty degrees, that is, the position above can be welded.

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