Laser welding equipment for temporary installation of ship side guardrail of ocean vessel

Abstract

The invention relates to the technical field of ship guardrail welding, in particular to a laser welding device for temporary installation of an ocean-going ship side guardrail, which comprises a clamping assembly comprising a positioning sleeve clamped on a fixed cross bar and a limiting sleeve clamped on a connecting cross bar, a gap is reserved between the positioning sleeve and the limiting sleeve, and a welding ring is rotatably installed in the gap; a welding ring is arranged on the upper end of the fixed cross bar, a welding head right facing a welding seam between the fixed cross bar and the connecting cross bar is arranged in an inner ring of the welding ring, and a sleeve for driving the welding ring to rotate is arranged at the upper end of the welding ring. Circumferential welding is carried out on a welding seam at the butt joint position through the welding ring capable of rotating circumferentially, in the operation process, only the connecting transverse fence needs to be preassembled, then the welding assembly is installed along one side of the undamaged fixed vertical fence, operation is easy and safe, the welding precision is high, and the requirement for operation on a shaking ship body is met.

Description

Technical Field

[0001] The invention relates to the technical field of ship guardrail welding, in particular to laser welding equipment for temporary installation of ship side guardrails of ocean-going ships. Background Art

[0002] For protection, guardrails are usually welded and installed on the sides of ocean-going vessels. The guardrails are distributed vertically and horizontally to prevent people or cargo on board from falling due to the shaking of the hull.

[0003] For the transportation and navigation of ocean-going vessels, there is a high probability that they will encounter typhoons or tsunamis when sailing at sea, especially in windy weather. Due to the beating of wind and waves, the guardrails exposed on the outside of the ship's side are very likely to bend, deform or even break due to the beating of typhoons or waves. The long-term navigation of ships requires the protection of guardrails. Therefore, after a typhoon passes or when sailing to a calm sea environment, the damaged guardrails need to be temporarily repaired.

[0004] During the maintenance process, the deformed guardrail needs to be cut off, while the undeformed guardrail is retained, and then the gap left is filled by guardrail welding. However, even for relatively calm seas, the shaking of the ship is inevitable. Therefore, during the maintenance welding process, it is difficult to achieve stable positioning when docking and welding the new and old guardrails, and personnel operate along the side of the ship, which is highly dangerous and difficult to operate. Summary of the invention

[0005] The object of the present invention is to provide a laser welding device for temporary installation of the side guardrail of an ocean-going vessel, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A laser welding device for temporary installation of a side guardrail of an ocean-going ship comprises a guardrail assembly and a welding assembly. The guardrail assembly comprises a fixed vertical bar fixedly connected to the side of the ship and a plurality of groups of fixed horizontal bars and a connecting horizontal bar to be welded.

[0007] The welding assembly includes a positioning column, one side of which is telescopically fixed on the fixed vertical bar, and the positioning column is provided with a clamping assembly with adjustable height corresponding to multiple groups of fixed horizontal bars. The clamping assembly includes a positioning sleeve clamped on the fixed horizontal bar and a limiting sleeve clamped on the connecting horizontal bar. A gap is left between the positioning sleeve and the limiting sleeve, and a welding ring is rotatably installed in the gap. A welding head facing the weld between the fixed horizontal bar and the connecting horizontal bar is provided in the inner circle of the welding ring, and a sleeve for driving the welding ring to rotate is provided at the upper end of the welding ring.

[0008] Preferably, a telescopic rod is provided on the upper end of the positioning column near the fixed vertical bar, and a clamping head is provided at the end of the telescopic rod and is sleeved on the upper end of the fixed vertical bar. A fastener is provided in the clamping head and is clamped on the outer wall of the end of the fixed vertical bar.

[0009] Preferably, one side of the positioning sleeve and the limiting sleeve is provided with a telescopically driven adjusting rod, the other end of the adjusting rod is lifted and connected to the positioning column, a semi-arc retaining ring is extended and connected to one side of the positioning sleeve close to the fixed vertical bar, and an inner hole is penetrated by the positioning sleeve and the limiting sleeve, and the inner diameter of the inner hole and the semi-arc retaining ring is equal to the outer diameter of the fixed horizontal bar.

[0010] Preferably, the welding assembly also includes a rotating device, which includes an inner rotating ring and an outer rotating half ring. The inner rotating ring is provided at the opposite end of the positioning sleeve and the limiting sleeve, and a rotating seat is provided on the other side of the positioning sleeve and the limiting sleeve. An outer rotating half ring that can cooperate with the inner rotating ring is rotatably installed on the rotating seat, and a rotating groove for circular rotation is formed between the inner rotating ring and a pair of outer rotating half rings. A movable rotating rod is rotatably installed in the rotating groove on the positioning sleeve, and a connecting rotating rod inserted in the limiting sleeve is provided on one side of the welding ring, and the other side of the welding ring is connected to the movable rotating rod.

[0011] Preferably, a fixed ear seat is provided on the rotating seat, and the rotating arm of the outer rotating half ring connected to the rotating seat is pressed on the fixed ear seat, and the rotating arm and the fixed ear seat are fixedly connected by a pin.

[0012] Preferably, the middle of the connecting rotating rod is a sphere, and an inner ring groove is provided in the rotating groove to cooperate with the sphere for rotation. A pair of compression arc blocks are elastically installed in the middle section of the movable rotating rod, and the outer diameter of the compression arc block is equal to the inner diameter of the inner ring groove.

[0013] Preferably, a compression cavity is provided inside the movable rotating rod, one side of a pair of compression arc blocks extends into the compression cavity through a double-conical column, and a second spring is sleeved on the double-conical column, one side port of the compression cavity faces the welding ring, and an adjusting rod and a connecting rod inserted in the compression cavity are provided on the side wall of the welding ring, the adjusting rod is elastically telescopically installed on the welding ring, and the connecting rod is fixedly installed on the side wall of the welding ring, and pressure balls are provided at the ends of the connecting rod and the adjusting rod, the length of the connecting rod is greater than that of the adjusting rod, and the pressure ball at the end of the connecting rod extends to one side of the double-conical column, and the pressure ball at the end of the adjusting rod is pressed between a pair of double-conical columns distributed up and down.

[0014] Preferably, a right-angle inner cavity is provided in the inner cavity of the welding ring, one side port of the right-angle inner cavity is connected to the adjusting rod, and the other side port of the right-angle inner cavity is inserted with a piston rod, and one end of the piston rod and the adjusting rod are both provided with a piston block sliding along the inner wall of the right-angle inner cavity.

[0015] Preferably, the piston rod passes through the sleeve and extends to the upper end of the sleeve, a pressure plate is provided at the upper end of the piston rod, and a first spring is sleeved on both the piston rod and the adjusting rod.

[0016] Preferably, the guardrail assembly further comprises connecting vertical bars vertically connecting a plurality of connecting horizontal bars, the positioning column is provided with a collar for vertical plug-in installation, and the lower end of the positioning column is provided with a suction cup connected to the ship.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The present invention ensures the accuracy of the relative position between the welding assembly and the guardrail assembly by setting a positioning column connected to the fixed vertical rail, and then uses a telescopically adjustable positioning sleeve and a limit sleeve to clamp the new and old horizontal rails respectively to achieve the purpose of precise docking, and circumferential welding of the welds at the docking position is achieved by a circumferentially rotatable welding ring. During operation, it is only necessary to pre-install the connecting horizontal rail, and then install the welding assembly along the undamaged side of the fixed vertical rail. The operation is simple and safe, with high welding accuracy, and meets the requirements for operation on a shaking hull. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the welding structure of the present invention; Figure 2 The limiting sleeve and positioning sleeve of the present invention; Figure 3 for Figure 2 A magnified view of the structure at center; Figure 4 It is a schematic diagram of the welding ring structure of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the welding ring of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the positioning sleeve of the present invention; Figure 7 This is a schematic diagram of the three-dimensional structure of the outer rotating half ring of the present invention being installed on the limiting sleeve; Figure 8 It is a schematic diagram of the three-dimensional structure of the limiting sleeve of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the movable rotating rod of the present invention.

[0019] In the figure: 1. Fixed vertical bar; 2. Fixed horizontal bar; 3. Positioning column; 4. Ring; 5. Suction cup; 6. Telescopic rod; 7. Clamping head; 8. Fastener; 9. Positioning sleeve; 10. Limit sleeve; 11. Weld; 12. Connecting horizontal bar; 13. Semi-arc retaining ring; 14. Movable rotating rod; 15. Welding ring; 16. Connecting rotating rod; 17. Outer rotating semi-ring; 18. Latch; 19. Welding head; 20. Sleeve; 21. First spring; 22. Piston rod; 23. Right-angle inner cavity; 24. Compression inner cavity; 25. Inner rotating ring; 26. Rotating groove; 27. Adjusting plug rod; 28. Second spring; 29. ​​Compression arc block; 30. Double cone column; 31. Connecting plug rod; 32. Adjusting rod; 33. Fixed ear seat; 34. Rotating seat; 36. Inner hole. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figures 1 to 9 , the present invention provides a technical solution: Embodiment 1: A laser welding device for temporary installation of a side guardrail of an ocean-going vessel comprises a guardrail assembly and a welding assembly, wherein the guardrail assembly comprises a fixed vertical rail 1 fixedly connected to the side of the ship and a plurality of fixed horizontal rails 2 and a connecting horizontal rail 12 to be welded, wherein the welding assembly comprises a positioning column 3, wherein one side of the positioning column 3 is telescopically fixed to the fixed vertical rail 1, a telescopic rod 6 is provided on the upper end of the positioning column 3 close to the fixed vertical rail 1, a clamping head 7 is provided at the end of the telescopic rod 6 and is sleeved on the upper end of the fixed vertical rail 1, a fastener 8 is provided in the clamping head 7 and is clamped on the outer wall of the end of the fixed vertical rail 1, the guardrail assembly further comprises a connecting vertical rail vertically connecting a plurality of connecting horizontal rails 12, a ring 4 for vertical plug-in installation is provided on the positioning column 3, and a suction cup 5 connected to the ship is provided at the lower end of the positioning column 3.

[0022] By setting the cooperation of the fastener 8 and the clamping head 7, the positioning column 3 is installed on the fixed vertical rail 1, ensuring the relative position accuracy between the clamping assembly and the fixed horizontal rail 2 to be welded, and then the connecting horizontal rail 12 to be welded is clamped by the clamping assembly, and the position of the positioning column 3 is adjusted by the telescopic rod 6 to ensure sufficient adjustment space for welding operation. By setting the suction cup 5, the fixed installation of the positioning column 3 is realized, and the ring 4 is used to facilitate the subsequent connection of the vertical rail.

[0023] The positioning column 3 is provided with a clamping assembly with adjustable height corresponding to the multiple groups of fixed horizontal bars 2 . The clamping assembly includes a positioning sleeve 9 clamped on the fixed horizontal bar 2 and a limiting sleeve 10 clamping the connecting horizontal bar 12 .

[0024] The positioning sleeve 9 is used to clamp and fix the crossbar 2, and the limiting sleeve 10 is used to clamp and connect the crossbar 12, so as to ensure the relative docking position accuracy of the welded guardrail.

[0025] A gap is left between the positioning sleeve 9 and the limiting sleeve 10, and a welding ring 15 is rotatably installed in the gap. A welding head 19 is arranged in the inner circle of the welding ring 15, facing the weld 11 between the fixed horizontal bar 2 and the connecting horizontal bar 12, and a sleeve 20 for driving the welding ring 15 to rotate is arranged at the upper end of the welding ring 15.

[0026] By rotating the welding ring 15 and cooperating with the welding of the welding head 19, circumferential welding of the weld at the butt joint position is achieved, thereby ensuring the connection strength after welding.

[0027] Working principle: First, the fastener 8 and the clamping head 7 are used to cooperate to ensure the relative position accuracy between the clamping assembly and the fixed cross bar 2 to be welded, and then the positioning sleeve 9 is used to clamp the fixed cross bar 2, and the limit sleeve 10 is used to clamp the connecting cross bar 12, so as to ensure the relative docking position accuracy of the welded guardrail, and then the welding head 19 is used to realize the butt welding of the position of the weld 11, and the rotation of the welding ring 15 is used to achieve full circumferential welding.

[0028] Example 2: On the basis of Example 1, in order to realize the circular rotation installation of the welding ring 15, a telescopically driven adjusting rod 32 is provided on one side of the positioning sleeve 9 and the limiting sleeve 10, and the other end of the adjusting rod 32 is lifted and connected to the positioning column 3. A semi-arc retaining ring 13 is extended and connected to the side of the positioning sleeve 9 close to the fixed vertical bar 1. An inner hole 36 is penetrated on the positioning sleeve 9 and the limiting sleeve 10, and the inner diameter of the inner hole 36 and the semi-arc retaining ring 13 is equal to the outer diameter of the fixed horizontal bar 2.

[0029] The relative lateral positions of the positioning sleeve 9 and the limiting sleeve 10 are adjusted by using the adjusting rod 32 to realize the motion docking of the connecting horizontal rail 12. During installation, since the port of the fixed horizontal rail 2 is sheared and there is a situation of offset to one side and elastic deformation, a semi-arc retaining ring 13 and an inner hole 36 extending to one side of the fixed vertical rail 1 are provided to limit the position of the fixed horizontal rail 2 and the connecting horizontal rail 12 to ensure their position accuracy relative to the fixed vertical rail 1.

[0030] The welding assembly also includes a rotating device, which includes an inner rotating ring 25 and an outer rotating half ring 17. The inner rotating ring 25 is provided at the opposite end of the positioning sleeve 9 and the limiting sleeve 10, and a rotating seat 34 is provided on the other side of the positioning sleeve 9 and the limiting sleeve 10. An outer rotating half ring 17 that can cooperate with the inner rotating ring 25 is rotatably installed on the rotating seat 34. A rotating groove 26 for circular rotation is formed between the inner rotating ring 25 and a pair of outer rotating half rings 17. A movable rotating rod 14 is rotatably installed in the rotating groove 26 on the positioning sleeve 9. A connecting rotating rod 16 inserted into the limiting sleeve 10 is provided on one side of the welding ring 15, and the other side of the welding ring 15 is connected to the movable rotating rod 14. A fixed ear seat 33 is provided on the rotating seat 34. The rotating arm of the outer rotating half ring 17 connected to the rotating seat 34 is pressed on the fixed ear seat 33, and the rotating arm and the fixed ear seat 33 are fixedly connected by a pin 18.

[0031] By providing a rotatably mounted outer half ring 17 and an inner half ring 25, a rotation groove 26 is formed, so that the welding ring 15 is clamped between the limiting sleeve 10 and the positioning sleeve 9, and can rotate along the circumference of the rotation groove 26. By providing a fixed ear seat 33 and a latch pin 18, the purpose of fixing the outer half ring 17 is achieved, and the stability of the rotation groove 26 is ensured, thereby limiting the rotation stability of the welding ring 15.

[0032] Embodiment 3: Based on Embodiment 2, since the limiting sleeve 10 and the positioning sleeve 9 need to be telescopically connected, it will cause difficulty in installing the welding ring 15. The middle of the connecting rotating rod 16 is a sphere, and the rotating groove 26 is provided with an inner groove of an annular ring that cooperates with the rotation of the sphere. The middle section of the movable rotating rod 14 is elastically installed with a pair of compression arc blocks 29, and the outer diameter of the compression arc block 29 is equal to the inner diameter of the inner groove of the annular ring.

[0033] By providing the sphere and the compression arc block 29 , the welding ring 15 is installed on the limiting sleeve 10 through the connecting rotating rod 16 , and the movable rotating rod 14 is installed on the positioning sleeve 9 .

[0034] A compression cavity 24 is provided inside the movable rotating rod 14, one side of a pair of compression arc blocks 29 extends into the compression cavity 24 through a double-conical column 30, and a second spring 28 is sleeved on the double-conical column 30. One side port of the compression cavity 24 faces the welding ring 15, and an adjusting rod 27 and a connecting rod 31 inserted into the compression cavity 24 are provided on the side wall of the welding ring 15. The adjusting rod 27 is elastically and telescopically mounted on the welding ring 15, and the connecting rod 31 is fixedly mounted on the side wall of the welding ring 15. Pressure balls are provided at the ends of the connecting rod 31 and the adjusting rod 27. The length of the connecting rod 31 is greater than that of the adjusting rod 27. The pressure ball at the end of the connecting rod 31 extends to one side of the double-conical column 30, and the pressure ball at the end of the adjusting rod 27 is pressed between a pair of double-conical columns 30 distributed up and down.

[0035] By adjusting the connection between the plug rod 27 and the connecting plug rod 31, the welding ring 15 is plugged into the movable rotating rod 14 when the limit sleeve 10 is telescopically connected, so as to clamp the two sides of the welding ring 15. In the process of plugging, since the length of the connecting plug rod 31 is greater than the adjusting plug rod 27, it extends to one side of the double-conical column 30, forming a staggered connection between the welding ring 15 and the movable rotating rod 14. The adjusting plug rod 27 is pressed between the upper and lower double-conical columns 30 to achieve the purpose of squeezing the second spring 28, and pushing the double-conical column 30 outward, so that the compression arc block 29 is deformed, compressed and tightly pressed on the inner wall of the rotating groove 26. At this time, the movable rotating rod 14 is fixed, and the welding ring 15 is synchronously limited to be unable to rotate.

[0036] A right-angle inner cavity 23 is provided in the inner cavity of the welding ring 15, one side port of the right-angle inner cavity 23 is connected to the adjusting rod 27, and the other side port of the right-angle inner cavity 23 is inserted with a piston rod 22. One end of the piston rod 22 and the adjusting rod 27 are provided with a piston block sliding along the inner wall of the right-angle inner cavity 23. The piston rod 22 passes through the sleeve 20 and extends to the upper end of the sleeve 20. A pressure plate is provided at the upper end of the piston rod 22, and a first spring 21 is sleeved on the piston rod 22 and the adjusting rod 27.

[0037] When welding is needed, the hand is held on the sleeve 20, and the thumb presses the pressure plate at the upper end of the piston rod 22, so that the piston rod 22 descends, compressing the internal pressure of the right-angle inner cavity 23, driving the adjusting rod 27 to extend outward and cross the double-conical column 30 distributed up and down. Under the reset action of the second spring 28, the compression arc block 29 is reset and the tightened and pressed state is released. At this time, the welding ring 15 is rotated to perform the circular rotation welding operation. When it is necessary to stop, just release the thumb so that the piston rod 22 is reset under the action of the first spring 21, and the adjusting rod 27 is re-pressed between the double-conical columns 30 distributed in the upper part, so as to achieve the purpose of fixing at any time, avoid the problem of welding gaps or repeated welding caused by the free rotation of the welding ring 15, and improve the aesthetics of the weld position and the connection strength.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser welding device for temporary installation of a side guardrail of an ocean-going vessel, comprising a guardrail assembly and a welding assembly, wherein the guardrail assembly comprises a fixed vertical rail (1) fixedly connected to the side of the vessel and a plurality of fixed horizontal rails (2) and a connecting horizontal rail (12) to be welded, characterized in that: The welding assembly comprises a positioning column (3), one side of which is telescopically fixed on the fixed vertical bar (1), the positioning column (3) is provided with a clamping assembly with adjustable height corresponding to the plurality of fixed horizontal bars (2), the clamping assembly comprising a positioning sleeve (9) clamped on the fixed horizontal bar (2) and a limiting sleeve (10) clamping the connecting horizontal bar (12), a gap being left between the positioning sleeve (9) and the limiting sleeve (10), a welding ring (15) being rotatably installed in the gap, a welding head (19) being provided in the inner ring of the welding ring (15) facing the welding seam (11) between the fixed horizontal bar (2) and the connecting horizontal bar (12), and a sleeve (20) for driving the welding ring (15) to rotate being provided at the upper end of the welding ring (15).

2. The laser welding equipment for temporary installation of the side guardrail of an ocean-going vessel according to claim 1 is characterized in that: A telescopic rod (6) is provided on one side of the upper end of the positioning column (3) close to the fixed vertical rail (1), and a clamping head (7) is provided at the end of the telescopic rod (6) and is sleeved on the upper end of the fixed vertical rail (1), and a fastener (8) is provided in the clamping head (7) and is clamped on the outer wall of the end of the fixed vertical rail (1).

3. The laser welding equipment for temporary installation of the side guardrail of an ocean-going vessel according to claim 2 is characterized in that: One side of the positioning sleeve (9) and the limiting sleeve (10) is provided with a telescopically driven adjusting rod (32), the other end of the adjusting rod (32) is lifted and connected to the positioning column (3), a semi-arc retaining ring (13) is extended and connected to the side of the positioning sleeve (9) close to the fixed vertical rail (1), and an inner hole (36) is penetrated through the positioning sleeve (9) and the limiting sleeve (10), and the inner diameter of the inner hole (36) and the semi-arc retaining ring (13) is equal to the outer diameter of the fixed horizontal rail (2).

4. The laser welding equipment for temporary installation of the side guardrail of an ocean-going vessel according to claim 3 is characterized in that: The welding assembly further comprises a rotating device, which comprises an inner rotating ring (25) and an outer rotating half ring (17). The inner rotating ring (25) is provided at one end of the positioning sleeve (9) and the limiting sleeve (10) opposite to each other. A rotating seat (34) is provided on the other side of the positioning sleeve (9) and the limiting sleeve (10). An outer rotating half ring (17) which can cooperate with the inner rotating ring (25) is rotatably mounted on the rotating seat (34). A rotating groove (26) for circular rotation is formed between the inner rotating ring (25) and the pair of outer rotating half rings (17). A movable rotating rod (14) is rotatably mounted in the rotating groove (26) on the positioning sleeve (9). A connecting rotating rod (16) inserted into the limiting sleeve (10) is provided on one side of the welding ring (15). The other side of the welding ring (15) is connected to the movable rotating rod (14).

5. The laser welding equipment for temporary installation of the side guardrail of an ocean-going vessel according to claim 4 is characterized in that: A fixed ear seat (33) is provided on the rotating seat (34), and a rotating arm of the outer rotating half ring (17) connected to the rotating seat (34) is pressed onto the fixed ear seat (33), and the rotating arm and the fixed ear seat (33) are fixedly connected via a latch (18).

6. The laser welding equipment for temporary installation of the side guardrail of an ocean-going vessel according to claim 5, characterized in that: The middle of the connecting rotating rod (16) is a sphere, and the rotating groove (26) is provided with an annular inner groove that rotates with the sphere. A pair of compression arc blocks (29) are elastically installed in the middle section of the movable rotating rod (14), and the outer diameter of the compression arc block (29) is equal to the inner diameter of the annular inner groove.

7. The laser welding equipment for temporary installation of side guardrails of ocean-going vessels according to claim 6, characterized in that: The movable rotating rod (14) is provided with a compression inner cavity (24) inside, one side of a pair of compression arc blocks (29) extends into the compression inner cavity (24) through a double-conical column (30), and a second spring (28) is sleeved on the double-conical column (30), one side port of the compression inner cavity (24) faces the welding ring (15), and the side wall of the welding ring (15) is provided with an adjustment rod (27) and a connection rod (31) inserted into the compression inner cavity (24), and the adjustment rod (27) and the connection rod (31) are provided on the side wall of the welding ring (15). The joint rod (27) is elastically and telescopically mounted on the welding ring (15), the connecting rod (31) is fixedly mounted on the side wall of the welding ring (15), and the ends of the connecting rod (31) and the adjusting rod (27) are both provided with pressure balls. The length of the connecting rod (31) is greater than that of the adjusting rod (27), the pressure ball at the end of the connecting rod (31) extends to one side of the double-conical column (30), and the pressure ball at the end of the adjusting rod (27) is pressed between a pair of double-conical columns (30) distributed up and down.

8. The laser welding equipment for temporary installation of the side guardrail of an ocean-going vessel according to claim 7, characterized in that: A right-angle inner cavity (23) is arranged in the inner cavity of the welding ring (15), one side port of the right-angle inner cavity (23) is connected to an adjusting plug rod (27), and a piston rod (22) is inserted into the other side port of the right-angle inner cavity (23), and one end of each of the piston rod (22) and the adjusting plug rod (27) is provided with a piston block that slides along the inner wall of the right-angle inner cavity (23).

9. The laser welding equipment for temporary installation of the side guardrail of an ocean-going vessel according to claim 8, characterized in that: The piston rod (22) passes through the sleeve (20) and extends to the upper end of the sleeve (20). A pressure plate is provided at the upper end of the piston rod (22). The piston rod (22) and the adjusting plug rod (27) are both sleeved with a first spring (21).

10. The laser welding equipment for temporary installation of side guardrails of ocean-going vessels according to claim 3, characterized in that: The guardrail assembly also includes connecting vertical bars that vertically connect multiple groups of connecting horizontal bars (12); a collar (4) for vertical plug-in installation is provided on the positioning column (3); and a suction cup (5) connected to the ship is provided at the lower end of the positioning column (3).

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