A laser welding apparatus for offshore engineering structural tubes

Abstract

The present application belongs to the technical field of laser welding, and particularly relates to a laser welding device for marine engineering structure pipes, which comprises a track, both ends of the track are fixedly connected with Y-shaped plates, a sliding seat is slidingly installed on the track, a laser welding gun is clamped on the sliding seat, one end of the laser welding gun is provided with a welding head, an elastic mechanism is arranged on the track and connected with the sliding seat, both inner sides of the two Y-shaped plates are fixedly connected with top plates through first springs, the Y-shaped plates are connected with a connecting plate through two upper and lower ropes, the two upper and lower ropes are connected together through a clamping mechanism, and an adjusting mechanism is arranged on the clamping mechanism. When the device is used, the staff adopts a hand-holding mode for welding, and utilizes the pipeline itself as a supporting structure to support the laser welding gun, so that the workload of the staff in the welding process is reduced, and the stability in the welding process is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of laser welding, and particularly relates to a laser welding device for marine engineering structure pipes. BACKGROUND

[0002] ‌Marine engineering structure pipes are various pipelines and pipe fittings used in marine engineering, mainly used in structures such as offshore platforms and submarine pipelines, and have specific material and process requirements, and are mainly used to build offshore platforms and submarine pipeline systems, which include submarine oil and gas gathering pipelines, trunk pipelines and auxiliary booster platforms.

[0003] The existing patent (CN117506206A) discloses a marine engineering pipeline underwater welding device, which comprises a cladding cylinder. The outer periphery of the pipeline to be welded is sealed by sealing air bags arranged at both ends of the cladding cylinder. The air pressure of the sealing air bags is used to automatically control the entry of gas into the inside of the cladding cylinder, without the need for manual monitoring, which is convenient to operate and helps to improve work efficiency.

[0004] From the prior art, it can be seen that when welding a pipeline under the sea, the operation equipment for welding is large and the operation difficulty is also large, and other auxiliary structures often need to be used to help welding. When welding, gas needs to be supplied to the welding point, so that the overall welding environment is unstable, and the field of vision is limited, which is not conducive to welding. SUMMARY

[0005] Based on the technical problems existing in the background art: when welding, gas needs to be supplied to the welding point, so that the overall welding environment is unstable, and the field of vision is limited, which is not conducive to welding. Therefore, the present application provides a laser welding device for marine engineering structure pipes.

[0006] The laser welding device for marine engineering structure pipes provided by the present application comprises a track, Y-shaped plates are fixedly connected to both ends of the track, a sliding seat is slidingly installed on the track, a laser welding gun is clamped on the sliding seat, a welding head is arranged at one end of the laser welding gun, an elastic mechanism is arranged on the track, and the elastic mechanism is connected with the sliding seat.

[0007] First springs are fixedly connected to the inner sides of the two Y-shaped plates, and top plates are fixedly connected to the first springs, the Y-shaped plates are connected with a connecting plate through two ropes arranged above and below, the two ropes are connected together through a clamping mechanism, and an adjusting mechanism is arranged on the clamping mechanism.

[0008] The clamping mechanism comprises a middle clamping plate and side clamping plates clamped on the upper and lower sides of the middle clamping plate, a first recess is formed in the connecting plate, the middle sections of the ropes are clamped in the first recess, the two ends of the ropes pass through the middle clamping plate and the side clamping plates, and the two side clamping plates are connected through the adjusting mechanism.

[0009] The connecting plate, the rope and the Y-shaped plate form a tightening mechanism, and the track is sleeved on the pipeline through the tightening mechanism.

[0010] Preferably, the slide is provided with a mounting block, the mounting block is provided with an arc-shaped slot, and the laser welding gun is clamped in the arc-shaped slot.

[0011] Preferably, the elastic mechanism comprises a first connecting shaft and a second connecting shaft, the first connecting shaft and the second connecting shaft are rotatably connected together through a mounting shaft, one end of the first connecting shaft away from the second connecting shaft is rotatably connected with the slide, one end of the track is provided with a rotating block, one end of the second connecting shaft away from the first connecting shaft is rotatably connected with the rotating block, and the mounting shaft is sleeved with a second spring, and the two ends of the second spring are respectively abutted with the first connecting shaft and the second connecting shaft.

[0012] Preferably, the first connecting shaft and the second connecting shaft are rotatably provided with a swivel ring on the surface of the connection of the mounting shaft, the two ends of the second spring are respectively fixedly connected with the two swivel rings, the outer surface of the swivel ring is made of rubber, the end of the second connecting shaft close to the rotating block is connected with an arc-shaped elastic sheet, and the end of the arc-shaped elastic sheet away from the second connecting shaft is slidably connected with the inner surface of the rotating block.

[0013] Preferably, the first groove on the connecting plate is horizontally arranged, the surface of the Y-shaped plate is provided with a second groove, and the second groove is vertically arranged, and the two ends of the rope are clamped in the two second grooves on the two sides.

[0014] Preferably, the side clamping plates are provided with first clamping grooves, the middle clamping plate is provided with second clamping grooves, the openings of the first clamping grooves at the upper and lower positions are arranged to face each other, the openings of the second clamping grooves at the upper and lower positions are arranged to face away from each other, a through hole is formed between the first clamping grooves and the second clamping grooves, and the rope is arranged to pass through the through hole.

[0015] Preferably, one side of each of the two side clamping plates is provided with a protrusion, the adjusting mechanism comprises a threaded shaft, two gear knobs and two clamping shafts, the threaded shaft passes through the two protrusions, the two gear knobs are threadedly sleeved at the two ends of the threaded shaft and abut against the protrusions respectively, and the two gear knobs are clamped through the two clamping shafts respectively.

[0016] Preferably, a fixed arc is fixedly arranged on the protrusion, a sleeve ring is sleeved on the surface of the fixed arc, a slot is arranged on one side of the sleeve ring, and the clamping shaft is movably mounted on the slot.

[0017] Preferably, a rotating shaft is fixedly installed on the slot, an adjusting slot is formed on the clamping shaft, the rotating shaft penetrates through the adjusting slot, and a corrugated elastic sheet is fixedly installed on one side of the rotating shaft and fixedly connected with the inner wall of the adjusting slot at one end.

[0018] Compared with the prior art, the present application has the following advantages:

[0019] 1. When welding and repairing the pipeline on the seabed, the connecting plate, the rope and the Y-shaped plate are combined to form a clamping mechanism, the device is directly installed on the pipeline to be welded, when welding along the direction of the pipeline is needed, the worker directly holds the sliding seat and slides along the track, so that the laser welding gun and the welding head can be moved, and the worker does not need to hold the equipment to operate.

[0020] 2. When welding along the cross-sectional direction of the pipeline is needed, the worker rotates the gear knob through the clamping shaft, and then reduces the friction force caused by the pressure of the rope, so that when the worker welds along the cross-sectional direction of the pipeline, the relative position of the outer surface of the pipeline can be changed directly by moving the track. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 A front structure schematic view of a laser welding device for a marine engineering structure pipe is provided for the present application;

[0022] Figure 2 A back structure schematic view of a laser welding device for a marine engineering structure pipe is provided for the present application;

[0023] Figure 3 A side structure schematic view of a laser welding device for a marine engineering structure pipe is provided for the present application;

[0024] Figure 4 A partial structure schematic view of a laser welding device for a marine engineering structure pipe is provided for the present application;

[0025] Figure 5 A structure schematic view of an elastic mechanism is provided for the present application;

[0026] Figure 6 A structure schematic view of a clamping mechanism is provided for the present application;

[0027] Figure 7 A structure schematic view of an adjusting mechanism is provided for the present application;

[0028] Figure 8 A structure schematic view of the installation of a laser welding gun on a sliding seat is provided for the present application.

[0029] In the figure: 1, track; 2, sliding seat; 3, second connecting shaft; 4, first connecting shaft; 5, welding head; 6, laser welding gun; 7, mounting block; 8, Y-shaped plate; 9, rope; 10, connecting plate; 11, clamping mechanism; 12, adjusting mechanism; 13, top plate; 14, first spring; 15, arc spring; 16, second spring; 17, mounting shaft; 18, swivel ring; 19, rotating block; 20, intermediate clamping plate; 21, first clamping groove; 22, second clamping groove; 23, collar; 24, threaded shaft; 25, gear knob; 26, clamping shaft; 27, slotted; 28, rotating shaft; 29, corrugated spring; 30, adjusting groove; 31, protrusion; 32, side clamping plate; 33, fixed arc. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all.

[0031] Reference Figures 1-8 A laser welding device for marine engineering structure pipes comprises a track 1, both ends of the track 1 are fixedly connected with Y-shaped plates 8, a sliding seat 2 is slidingly installed on the track 1, a laser welding gun 6 is clamped on the sliding seat 2, one end of the laser welding gun 6 is provided with a welding head 5, an elastic mechanism is arranged on the track 1, and the elastic mechanism is connected with the sliding seat 2.

[0032] Both inner sides of the two Y-shaped plates 8 are fixedly connected with top plates 13 through first springs 14, the Y-shaped plates 8 are connected with a connecting plate 10 through upper and lower ropes 9, the upper and lower ropes 9 are connected together through a clamping mechanism 11, and the clamping mechanism 11 is provided with an adjusting mechanism 12.

[0033] The clamping mechanism 11 comprises an intermediate clamping plate 20 and side clamping plates 32 clamped on the upper and lower sides of the intermediate clamping plate 20, a first recess is formed in the connecting plate 10, a middle section of the rope 9 is clamped in the first recess, both ends of the rope 9 pass through the intermediate clamping plate 20 and the side clamping plates 32, and the upper and lower side clamping plates 32 are connected through the adjusting mechanism 12.

[0034] The connecting plate 10, the rope 9 and the Y-shaped plate 8 form a tightening mechanism, and the track 1 is sleeved on the pipe through the tightening mechanism.

[0035] The sliding seat 2 is provided with a mounting block 7, the mounting block 7 is provided with an arc-shaped groove, and the laser welding gun 6 is clamped in the arc-shaped groove. The laser welding gun 6 is a structure that can be detachably inserted into the arc-shaped groove, and the staff can directly take it down, which is convenient for dismounting and mounting, and also convenient for use and carrying.

[0036] The elastic mechanism comprises a first connecting shaft 4 and a second connecting shaft 3, the first connecting shaft 4 and the second connecting shaft 3 are rotatably connected together through a mounting shaft 17, one end of the first connecting shaft 4 away from the second connecting shaft 3 is rotatably connected with the sliding seat 2, one end of the track 1 is provided with a rotating block 19, one end of the second connecting shaft 3 away from the first connecting shaft 4 is rotatably connected with the rotating block 19, the mounting shaft 17 is sleeved with a second spring 16, and the two ends of the second spring 16 are respectively abutted against the first connecting shaft 4 and the second connecting shaft 3.

[0037] The first connecting shaft 4 and the second connecting shaft 3 are rotatably provided with rotating rings 18 on the surfaces of the connecting portions of the mounting shaft 17, the two ends of the second spring 16 are fixedly connected with the two rotating rings 18 respectively, the outer surface of the rotating ring 18 is made of rubber, the surface of one end of the second connecting shaft 3 close to the rotating block 19 is connected with an arc-shaped elastic sheet 15, and the end of the arc-shaped elastic sheet 15 away from the second connecting shaft 3 is slidably connected with the inner surface of the rotating block 19.

[0038] The first recess on the connecting plate 10 is horizontally arranged, the surface of the Y-shaped plate 8 is provided with a second recess, the second recess is vertically arranged, and the two ends of the rope 9 are clamped in the second recesses on the two sides. When the device is bound on the pipeline, the two ropes 9 are clamped on the Y-shaped plate 8 by passing through the connecting plate 10, and the rope 9 is limited in the range of the first recess and the second recess to avoid falling off during binding.

[0039] The first clamping groove 21 is arranged on the side clamping plate 32, the second clamping groove 22 is arranged on the middle clamping plate 20, the openings of the first clamping grooves 21 on the upper and lower positions are arranged to face each other, the openings of the second clamping grooves 22 on the upper and lower positions are arranged to face away from each other, the first clamping groove 21 and the second clamping groove 22 form a through hole, and the rope 9 passes through the through hole. The two side clamping plates 32 are close to each other, the rope 9 passes through the through hole, and the position can be kept stable under the action of pressure.

[0040] The two side clamping plates 32 are provided with protrusions 31, the adjusting mechanism 12 comprises a threaded shaft 24, two gear knobs 25 and two clamping shafts 26, the threaded shaft 24 passes through the two protrusions 31, the two gear knobs 25 are respectively threaded on the two ends of the threaded shaft 24 and abut against the protrusions 31, and the two gear knobs 25 are clamped by the two clamping shafts 26. When the gear knob 25 is rotated by the clamping shaft 26, the position of the gear knob 25 relative to the threaded shaft 24 can be changed, so that the two gear knobs 25 are close to or away from each other, thereby achieving the effect of clamping and fixing or slightly loosening the rope 9.

[0041] The protrusion 31 is fixedly provided with a fixed arc 33, the fixed arc 33 is sleeved with a sleeve ring 23, one side of the sleeve ring 23 is provided with a slot 27, and the clamping shaft 26 is movably installed on the slot 27. When the angle of the gear knob 25 needs to be changed, the user twists the gear knob 25 by swinging one end of the clamping shaft 26 back and forth, so that the side clamping plate 32 is close to or away from the middle clamping plate 20.

[0042] The slot 27 is fixedly installed with a rotating shaft 28, the clamping shaft 26 is provided with an adjusting slot 30, the rotating shaft 28 passes through the adjusting slot 30, one side of the rotating shaft 28 is fixedly installed with a corrugated elastic sheet 29, and one end of the corrugated elastic sheet 29 is fixedly connected with the inner wall of the adjusting slot 30. Under the elastic force of the corrugated elastic sheet 29, one end of the clamping shaft 26 is clamped on the gear knob 25, the angle of the gear knob 25 is limited, and the clamping shaft 26 can be separated from the gear knob 25 by pulling it outward.

[0043] When the pipeline on the seabed is welded and repaired, the connecting plate 10, the rope 9 and the Y-shaped plate 8 are combined to form a tight clamping mechanism, the device is directly installed on the pipeline to be welded, when welding along the direction of the pipeline is needed, the worker directly holds the sliding seat 2 and slides along the track 1, so that the laser welding gun 6 and the welding head 5 can be moved, the welding head 5 is directed to the position to be welded, and welding along the direction of the pipeline can be directly performed without the worker holding the device.

[0044] When welding along the cross-sectional direction of the pipeline is needed, the worker rotates the gear knob 25 by the clamping shaft 26, so that the distance between the two side clamping plates 32 is slightly increased, the rope 9 can be loosened, the pressure of the rope 9 bound on the pipeline is reduced, the friction force caused by the pressure of the rope 9 is reduced, the friction force ratio of the top plate 13 abutting against the outer surface of the pipeline is increased, so that when the worker welds along the cross-sectional direction of the pipeline, the position relative to the outer surface of the pipeline can be changed by moving the track 1, and when the worker releases the hand, the position of the track 1 relative to the pipeline remains unchanged due to the sufficient friction force.

[0045] When the device is used, the worker adopts the hand supporting mode to carry out the welding, and uses the pipeline itself as a supporting structure to support the laser welding gun 6, so as to reduce the workload of the worker in the welding process, improve the stability in the welding process, and avoid fatigue and instability caused by the hand holding mode and seawater flow.

[0046] When the tightening mechanism is tied on the pipeline, the connecting plate 10 is arranged at the rear side of the pipeline, the Y-shaped plate 8 is arranged at the front side of the pipeline, the track 1 and the laser welding gun 6 are opposite the position point to be welded, the ropes 9 are respectively sleeved in the first grooves at the upper and lower ends of the connecting plate 10, and the upper and lower ropes 9 are converged at one side of the Y-shaped plate 8, the two ends of the rope 9 are respectively passed through the through holes formed by the second clamping groove 22 and the first clamping groove 21, the worker clamps the upper and lower side clamping plates 32 in the middle of the clamping plate 20 by rotating the gear knob 25, tightens the rope 9 outward, and limits the position of the clamping mechanism 11 relative to the rope 9, so that the device is effectively installed on the surface of the pipeline by the tightening mechanism.

[0047] When the tightening mechanism needs to be fine-tuned, the worker sleeves the sleeve ring 23 on the fixed arc 33, so that one end of the clamping shaft 26 is clamped into one side of the gear knob 25, the clamping shaft 26 swings back and forth to fine-tune the relative angle of the gear knob 25, and when the clamping shaft 26 is reset, the clamping shaft 26 is pulled outward to compress the corrugated elastic sheet 29 to adjust the angle, and the next fine-tuning can be carried out, the gear knob 25 can be rotated by repeatedly swinging the clamping shaft 26, so that the fine-tuning effect is effectively and effortlessly realized, and the tightening force of the rope 9 on the pipeline is fine-tuned, so that the position of the tightening mechanism and the track 1 can be adjusted.

[0048] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should be considered as the protection scope of the present application.

Claims

1. A laser welding device for marine engineering structural pipes, characterized in that, Includes a track (1), with Y-shaped plates (8) fixedly connected to both ends of the track (1), a slide block (2) slidably mounted on the track (1), a laser welding gun (6) snapped onto the slide block (2), a welding head (5) provided at one end of the laser welding gun (6), and an elastic mechanism provided on the track (1), the elastic mechanism being connected to the slide block (2); The inner sides of the two Y-shaped plates (8) are fixedly connected to the top plate (13) by the first spring (14). The Y-shaped plates (8) are connected to the connecting plate (10) by the upper and lower ropes (9). The upper and lower ropes (9) are connected together by the snap-fit ​​mechanism (11). The snap-fit ​​mechanism (11) is provided with the adjustment mechanism (12). The locking mechanism (11) includes a middle locking plate (20) and side locking plates (32) locked on the upper and lower sides of the middle locking plate (20). The connecting plate (10) has a first groove. The middle section of the rope (9) is locked in the first groove, and both ends of the rope (9) pass through the middle locking plate (20) and the side locking plates (32). The upper and lower side locking plates (32) are connected by an adjustment mechanism (12). The connecting plate (10), rope (9), and Y-shaped plate (8) form a clamping mechanism, and the track (1) is fitted onto the pipe through the clamping mechanism; The first groove on the connecting plate (10) is horizontally arranged, and the surface of the Y-shaped plate (8) is provided with a second groove, which is vertically arranged. The two ends of the rope (9) are respectively stuck in the second groove on both sides. The side plate (32) is provided with a first slot (21), and the middle plate (20) is provided with a second slot (22). The openings of the first slot (21) at the upper and lower positions face each other, and the openings of the second slot (22) at the upper and lower positions face each other. A through hole is formed between the first slot (21) and the second slot (22), and the rope (9) passes through the through hole. Each of the two side plates (32) is provided with a protrusion (31) on one side. The adjustment mechanism (12) includes a threaded shaft (24), two gear knobs (25) and two locking shafts (26). The threaded shaft (24) passes through the two protrusions (31). The two gear knobs (25) are respectively threaded onto the two ends of the threaded shaft (24) and abut against the protrusions (31). The two gear knobs (25) are respectively locked by the two locking shafts (26). A fixing arc (33) is fixedly provided on the protrusion (31), and a collar (23) is sleeved on the surface of the fixing arc (33). A slot (27) is provided on one side of the collar (23), and the retaining shaft (26) is movably installed on the slot (27). A rotating shaft (28) is fixedly installed on the slot (27), and an adjustment groove (30) is provided on the clamping shaft (26). The rotating shaft (28) passes through the adjustment groove (30), and a corrugated spring piece (29) is fixedly installed on one side of the rotating shaft (28). One end of the corrugated spring piece (29) is fixedly connected to the inner wall of the adjustment groove (30).

2. The laser welding device for marine engineering structural pipes according to claim 1, characterized in that, The slide block (2) is provided with a mounting block (7), and the mounting block (7) is provided with an arc-shaped groove, and the laser welding gun (6) is engaged in the arc-shaped groove.

3. The laser welding device for marine engineering structural pipes according to claim 1, characterized in that, The elastic mechanism includes a first connecting shaft (4) and a second connecting shaft (3). The first connecting shaft (4) and the second connecting shaft (3) are rotatably connected together by a mounting shaft (17). The end of the first connecting shaft (4) away from the second connecting shaft (3) is rotatably connected to the slide (2). A rotating block (19) is provided at one end of the track (1). The end of the second connecting shaft (3) away from the first connecting shaft (4) is rotatably connected to the rotating block (19). A second spring (16) is sleeved on the mounting shaft (17). The two ends of the second spring (16) abut against the first connecting shaft (4) and the second connecting shaft (3) respectively.

4. The laser welding device for marine engineering structural pipes according to claim 3, characterized in that, The first connecting shaft (4) and the second connecting shaft (3) are both rotatably provided with rotating rings (18) on the surface of the connection between the mounting shaft (17). The two ends of the second spring (16) are fixedly connected to the two rotating rings (18) respectively. The outer surface of the rotating ring (18) is made of rubber. An arc-shaped spring piece (15) is connected to the surface of the second connecting shaft (3) near the rotating block (19). The end of the arc-shaped spring piece (15) away from the second connecting shaft (3) is slidably connected to the inner surface of the rotating block (19).

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