Marine steel structure welding device

Abstract

The invention relates to a marine steel structure welding device which comprises a base, a welding gun and a sliding guide rail. The sliding guide rail is installed on the base, and a sliding seat used for welding, clamping and fixing is installed on the sliding guide rail in a matched mode. The lower end of the base is provided with a first magnetic attraction part used for enabling the base to be attracted and fixed to a steel structure, one side of the lower end of the base is further provided with a moving part provided with a second magnetic attraction part, and the moving part is in sliding connection with the base and can move relative to the base in a linear mode. The relative linear moving direction of the moving part and the base is the same as the moving direction of the sliding seat along the sliding guide rail. According to the marine steel structure welding device, the first magnetic attraction part and the second magnetic attraction part are attracted to a steel structure, the situation that instability occurs in the welding process due to the influence of wind power and the like is avoided, and the sliding guide rail is arranged so that the welding gun can linearly move along the sliding guide rail in the welding process to achieve linear continuous welding.

Description

Technical Field

[0001] The invention relates to the field of ship welding equipment, and in particular to a ship steel structure welding device. Background Art

[0002] The process of shipbuilding involves a large amount of welding work. For some areas such as decks and outer plates, the area to be welded is relatively large, and the length of the weld is also relatively long, which can reach tens of meters. In order to ensure the quality of welding, it is necessary to ensure the continuity of welding angles and welding positions to avoid misalignment of welding angles and welding positions. Since part of the welding work is carried out outdoors at high altitudes, the wind force at high altitudes is relatively large compared to the ground. Under the influence of wind, the welding equipment is prone to displacement and tipping, resulting in unstable welding and affecting the welding quality.

[0003] Existing designs, such as laying rails on steel plates, move along the rails to achieve straight-line welding. Existing technologies, such as the invention patent application with publication number CN116968049A, discloses a construction site welding robot device that fixes the rails with a strong magnetic fixing component. However, as the length of the weld increases, the length of the rails is limited, and the rails need to be continuously extended. In this process, it is difficult to ensure the consistency of the laying direction of the rails, and the workload is relatively large. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a marine steel structure welding device, which can meet the requirements of straight weld welding and welding of welds of different lengths. The technical objectives of the present invention are achieved through the following technical solutions:

[0005] A marine steel structure welding device comprises a base, a welding gun and a sliding guide rail;

[0006] The sliding guide rail is installed on the base, and a sliding seat for welding, clamping and fixing is installed on the sliding guide rail;

[0007] A first magnetic attraction portion is provided at the lower end of the base for adsorbing and fixing the base on the steel structure. A moving portion with a second magnetic attraction portion is also provided on one side of the lower end of the base. The moving portion and the base are slidably connected, and the moving portion and the base can move relatively linearly. The direction of the relative linear movement of the moving portion and the base is the same as the direction of movement of the sliding seat along the sliding guide rail.

[0008] Furthermore, the first magnetic attraction part includes a first electromagnetic adsorption device and a first lifting device, and the second magnetic attraction part includes a second electromagnetic adsorption device and a second lifting device; the first lifting device drives the first electromagnetic adsorption device to move up and down relative to the base, and the second lifting device drives the second electromagnetic adsorption device to move up and down relative to the moving part.

[0009] Furthermore, a first buffer device is connected between the first lifting device and the first electromagnetic adsorption device. When the first lifting device drives the first electromagnetic adsorption device to move downward relative to the base, the first buffer device is compressed. When the first lifting device drives the first electromagnetic adsorption device to move upward relative to the base, the first buffer device is reset.

[0010] A second buffer device is also connected between the second lifting device and the second electromagnetic adsorption device. When the second lifting device drives the second electromagnetic adsorption device to move downward relative to the movable part, the second buffer device is compressed. When the second lifting device drives the second electromagnetic adsorption device to move upward relative to the movable part, the second buffer device is reset.

[0011] Furthermore, the first electromagnetic adsorption device includes a plurality of first electromagnetic suction cups, and the first electromagnetic suction cups are evenly distributed in a circle outside the vertical center of the first buffer device.

[0012] Furthermore, a damper is connected between the first electromagnetic suction cup and the first buffer device, and each first electromagnetic suction cup is connected via a damper and extends to the outside of the first buffer device.

[0013] Furthermore, one end of the damper is hingedly connected to the first buffer device, and the other end of the damper is connected to the first electromagnetic chuck via a universal joint.

[0014] Furthermore, a sealing ring is arranged outside the first electromagnetic chuck, the sealing ring is movably sleeved outside the first electromagnetic chuck, and an elastic telescopic member is connected between the sealing ring and the outside of the first electromagnetic chuck.

[0015] Furthermore, a plurality of elastic pads are provided at the bottom of the first electromagnetic chuck.

[0016] Furthermore, the sliding guide rail is arranged along the length direction of the base, and a first magnetic attraction part is respectively arranged at both ends of the length direction of the base; the welding gun is clamped on one side of the width direction of the base, and the moving part is located below the other side of the width direction of the base.

[0017] Furthermore, a limiting device is provided between the moving part and the base to limit the movement of the moving part relative to the base, and the limiting device is opened when the moving part and the base need to move relative to each other.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The ship steel structure welding device of the present invention is adsorbed on the steel structure by the first magnetic attraction part and the second magnetic attraction part, so as to avoid instability during welding due to wind force and the like.

[0020] 2. In the present invention, the arrangement of the sliding guide rail can realize linear continuous welding by the welding gun moving linearly along the sliding guide rail during the welding process.

[0021] 3. The present invention can realize the movement of the welding device in cooperation with the base through the setting of the moving part. During the movement, the base and the moving part cooperate with each other, one static and one dynamic, to ensure that the welding device always moves in a straight line during the movement, thereby avoiding the problem of directional deviation during the movement of the welding device. The movement of the welding device by means of the moving part can also save the laying and extension of the guide rail, thereby avoiding the problem of difficult control of the laying direction of the guide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of a ship steel structure welding device of the present invention.

[0023] Figure 2 It is a schematic diagram of the arrangement of the first electromagnetic chuck and the second electromagnetic chuck in the present invention.

[0024] Figure 3 It is a schematic diagram of the arrangement of the first lifting device in the present invention.

[0025] Figure 4 It is a schematic diagram of the interior of the first buffer device in the present invention.

[0026] Figure 5 It is a schematic diagram of the connection between the damper and the universal joint in the present invention.

[0027] Figure 6 It is a schematic diagram of the internal bracket arrangement of the elastic pad in the present invention.

[0028] Figure 7 It is a schematic diagram of the installation of the moving part in the present invention.

[0029] Figure 8 It is a schematic diagram of the arrangement of the second lifting device in the present invention.

[0030] Fig. 9 It is a schematic diagram of welding clamping in the present invention.

[0031] In the figure:

[0032] 1. Base; 2. Welding gun; 3. Sliding guide rail; 4. Sliding seat; 5. First magnetic attraction part; 6. Moving part; 7. Second magnetic attraction part; 8. First electromagnetic suction cup; 9. Second electromagnetic suction cup; 10. First electric push rod; 11. First driving tube; 12. Second electric push rod; 13. Second driving tube; 14. Linkage plate; 15. First support rod; 16. First fixed plate; 17. First spring; 18. First fixed ring; 19. Second support rod; 20. First Second fixed plate; 21. Second spring; 22. Second fixed ring; 23. Damper; 24. Universal joint; 25. Sealing ring; 26. First fixed block; 27. Second fixed block; 28. Vertical connecting rod; 29. ​​Third spring; 30. Elastic pad; 31. Bracket; 32. Support plate; 33. Roller; 34. Limiting hole; 35. Limiting plate; 36. Fourth spring; 37. Guide rod; 38. Positioning block; 39. Connecting block; 40. Connecting piece. DETAILED DESCRIPTION

[0033] The technical solution of the present invention is further described below in conjunction with specific embodiments:

[0034] A marine steel structure welding device, such as Figure 1 As shown, it includes a base 1, a welding gun 2, and a sliding guide rail 3;

[0035] The sliding guide rail 3 is installed on the base 1, and a sliding seat 4 for welding and clamping is installed on the sliding guide rail 3; the sliding seat 4 and the sliding guide rail 3 are slidably matched, and the sliding seat 4 can be manually pushed to move relative to the sliding guide rail 3, and an electric or pneumatic method can be selected as a power to drive the sliding seat 4 to move relative to the sliding guide rail 3.

[0036] A first magnetic attraction portion 5 is provided at the lower end of the base 1 for adsorbing and fixing the base on the steel structure, and a moving portion 6 with a second magnetic attraction portion 7 is also provided on one side of the lower end of the base 1. The moving portion 6 and the base 1 are slidably connected, and the moving portion 6 and the base 1 can move relatively linearly. The direction of the relative linear movement of the moving portion 6 and the base 1 is the same as the moving direction of the sliding seat 4 along the sliding guide rail 3.

[0037] The sliding guide rail 3 is arranged along the length direction of the base 1, and the first magnetic attraction part 5 is respectively arranged at both ends of the length direction of the base 1; the welding gun 2 is clamped on one side of the width direction of the base, and the moving part 6 is located below the other side of the width direction of the base. During welding, the first magnetic attraction part 5 and the second magnetic attraction part 7 are both adsorbed on the steel structure. When it is necessary to move, the first magnetic attraction part 5 is released from adsorption and the base 1 is first moved relative to the moving part 6. After the base 1 is moved, the first magnetic attraction part 5 is adsorbed on the steel structure again, and then the second magnetic attraction part 7 is released from adsorption and the moving part 6 is moved, and then the second magnetic attraction part 7 is adsorbed on the steel structure again. Therefore, the base and the moving part are one moving and one static during the movement process, ensuring that at least one is fixed during the movement process, so as to ensure that the direction of movement will not be offset. Therefore, when the welding device moves, the moving part can also be moved first, and then the base can be moved. In this embodiment, the relative movement between the base and the moving part is achieved by manual pushing.

[0038] In one embodiment, since the steel structure itself may have linear shapes, plate thickness differences, etc., resulting in the placement area of ​​the welding device on the steel structure not being a plane, in order to ensure stable placement and that the first magnetic attraction portion 5 and the second magnetic attraction portion 7 can be well contacted with the steel structure for adsorption, the first magnetic attraction portion 5 and the second magnetic attraction portion 7 are respectively provided with lifting devices. Specifically, the first magnetic attraction portion 5 includes a first electromagnetic adsorption device and a first lifting device, and the second magnetic attraction portion includes a second electromagnetic adsorption device and a second lifting device. The first lifting device drives the first electromagnetic adsorption device to move up and down relative to the base, and the second lifting device drives the second electromagnetic adsorption device to move up and down relative to the moving portion, thereby ensuring that the first magnetic attraction portion and the second magnetic attraction portion can be well contacted with the steel structure.

[0039] Specifically, Figure 2 As shown, the first electromagnetic adsorption device includes a plurality of first electromagnetic suction cups 8, through which adsorption with the steel structure is achieved. In order to increase stability, each first electromagnetic adsorption device is provided with at least three first electromagnetic suction cups 8. In this embodiment, each first electromagnetic adsorption device is provided with four first electromagnetic suction cups 8.

[0040] Since the movable part 6 is mainly used for adsorption and positioning when the welding device moves, each second electromagnetic adsorption device of the movable part 6 can be provided with multiple second electromagnetic suction cups 9, or only one second electromagnetic suction cup 9 can be provided. In this embodiment, each second electromagnetic adsorption device is provided with one second electromagnetic suction cup 9 to reduce space occupation.

[0041] The first lifting device and the second lifting device are mainly used for linear telescopic adjustment, and can adopt a mechanical structure with telescopic function, such as a linear motor, an electric cylinder and other actuators.

[0042] In one embodiment, as a preference, a first buffer device is further connected between the first lifting device and the first electromagnetic adsorption device, and the first buffer device is compressed when the first lifting device drives the first electromagnetic adsorption device to move downward relative to the base, and the first buffer device is reset when the first lifting device drives the first electromagnetic adsorption device to move upward relative to the base;

[0043] A second buffer device is also connected between the second lifting device and the second electromagnetic adsorption device. When the second lifting device drives the second electromagnetic adsorption device to move downward relative to the movable part, the second buffer device is compressed. When the second lifting device drives the second electromagnetic adsorption device to move upward relative to the movable part, the second buffer device is reset.

[0044] In one embodiment, Figure 3 As shown, the first lifting device includes a first electric push rod 10 and a first driving tube 11 which is transmission-connected to the first electric push rod 10. The first electric push rod 10 is installed in the base 1. One end of the first driving tube 11 is connected to the output end of the first electric push rod 10. It should be noted that the connection between the first driving tube 11 and the output end of the first electric push rod 10 can be a direct connection or an indirect connection. The first electric push rod 10 drives the first driving tube 11 to extend and retract vertically relative to the base 1. A first electromagnetic adsorption device is arranged at the other end of the first driving tube 11.

[0045] The second lifting device is similar to the first lifting device. Figure 8 As shown, it includes a second electric push rod 12 and a second drive tube 13 connected to the second electric push rod 12 in transmission. The second electric push rod 12 is installed in the moving part 6. One end of the second drive tube 13 is connected to the output end of the second electric push rod 12. The second electric push rod 12 drives the second drive tube 13 to move vertically relative to the moving part 6 in extension and contraction. A second electromagnetic adsorption device is arranged at the other end of the second drive tube 13. It should be noted that the connection between the second drive tube 13 and the output end of the second electric push rod 12 can be a direct connection or an indirect connection. In this embodiment, four second magnetic adsorption parts are arranged along the length direction of the moving part. The output end of a second electric push rod 12 can be simultaneously connected to the second drive tubes 13 of four second magnetic adsorption parts through a linkage plate 14 to achieve synchronous extension and contraction.

[0046] like Figure 4As shown, the first buffer device includes a first support rod 15, a first fixed disk 16, and a first spring 17. One end of the first support rod 15 is inserted into the first driving tube 11, and the first fixed disk 16 is fixed to the other end of the first support rod 15. The first spring 17 is sleeved on the outside of the first support rod 15. A first fixed ring 18 for limiting the first spring 17 is also provided at the lower end of the first driving tube 11. When the first lifting device drives the first electromagnetic adsorption device to move downward, the upper end of the first support rod 15 will move upward relative to the first driving tube 11 and compress the first spring 17, so that the first electromagnetic adsorption device can fit the steel structure tightly, and can also avoid the first electromagnetic adsorption device from rigidly colliding with the steel structure. In this embodiment, the four first electromagnetic suction cups 8 are evenly distributed along a circle of the first fixed disk 16 with the center of the first fixed disk 16 as the center.

[0047] like Figure 8 As shown, the second buffer device includes a second support rod 19, a second fixing plate 20, and a second spring 21. One end of the second support rod 19 is inserted into the second driving tube 13, the second fixing plate 20 is fixed to another section of the second support rod 19, the second spring 21 is sleeved on the outside of the second support rod 19, and a second fixing ring 22 for limiting the second spring 21 is also provided at the lower end of the second driving tube 13. When the second lifting device drives the second electromagnetic adsorption device to move downward, the upper end of the second support rod 19 will move upward relative to the second driving tube 13 and compress the second spring 21, so that the second electromagnetic adsorption device can fit the steel structure closely, and can also avoid the second electromagnetic adsorption device from rigidly colliding with the steel structure.

[0048] In one embodiment, in order to reduce the influence of wind force, a damper 23 is further connected between the first electromagnetic chuck 8 and the first buffer device. Figure 4 and Figure 5 As shown, each first electromagnetic chuck 8 is connected to the outside of the first buffer device through a damper 23. The damper 23 can absorb the impact force or vibration caused by the movement of the hull or the wind.

[0049] Preferably, one end of the damper 23 is hingedly connected to the first buffer device, and the other end of the damper 23 is connected to the first electromagnetic suction cup 8 through a universal joint 24, such as a cross-axis universal joint. The damper 23 and the universal joint 24 are also hingedly connected. Through this design, the position and angle of the first electromagnetic suction cup can be adjusted more flexibly to adapt to the surface of the steel structure.

[0050] In one embodiment, Figure 5As shown, a sealing ring 25 is also provided on the outside of the first electromagnetic suction cup 8, and the sealing ring 25 is movably sleeved on the outside of the first electromagnetic suction cup 8, and an elastic telescopic member is connected between the sealing ring 25 and the outside of the first electromagnetic suction cup 8. Specifically, the elastic telescopic member includes a first fixed block 26 fixed on the outside of the first electromagnetic suction cup 8, a second fixed block 27 fixed on the outside of the sealing ring 25, and the second fixed block 27 and the first fixed block 26 are arranged correspondingly up and down, and a vertical connecting rod 28 is installed on the second fixed block 27, and the first fixed block 26 is provided with a through hole corresponding to the vertical connecting rod, one end of the vertical connecting rod 28 is fixedly connected to the second fixed block 27, and the other end of the vertical connecting rod 28 passes through the through hole of the first fixed block 26 upwardly, and a third spring 29 is also connected between the first fixed block 26 and the second fixed block 27, and the two ends of the third spring 29 are respectively connected to the first fixed block 26 and the second fixed block 27, and the third spring 29 is sleeved on the outside of the vertical connecting rod 28. Since there may be a lot of dust, welding slag, rust, etc. at the welding site, in order to reduce adsorption on the first electromagnetic chuck, the setting of the sealing ring can play a certain protective role, ensuring that the sealing ring can always cover the outside of the first electromagnetic chuck when the first electromagnetic chuck is adsorbed on the steel structure.

[0051] In one embodiment, a plurality of elastic pads 30 are further provided at the bottom of the first electromagnetic suction cup 8. The elastic pads 30 are, for example, rubber strips. The rubber strips protrude downward relative to the adsorption surface of the first electromagnetic suction cup. The elastic pads 30 are provided to increase the contact surface with the steel structure, thereby increasing the stability of the first electromagnetic suction cup when adsorbed on the steel structure. When the first electromagnetic suction cup 8 is adsorbed on the steel structure, the elastic pads are squeezed, and uneven positions on the surface of the steel structure can be filled by the elastic pads.

[0052] More specifically, Figure 6 As shown, a plurality of brackets 31 are arranged in the elastic pad. The brackets 31 are elliptical and made of a material such as a stainless steel sheet. Rubber is coated on the outer side of the brackets 31 to form an elastic pad. The arrangement of the brackets 31 can prevent the elastic pad from being deformed and unable to recover after being compressed for a long time.

[0053] In one embodiment, Figure 7 As shown, a rectangular groove is provided on one side of the lower width of the base 1, and a horizontally arranged support plate 32 is provided in the rectangular groove. The movable part 6 is provided with rectangular holes passing through both sides of the movable part 6 corresponding to the support plate 32, and the support plate 32 passes through the rectangular holes. The length of the rectangular hole is greater than the length of the support plate 32, thereby realizing the relative displacement of the support plate 32 and the rectangular hole.

[0054] Preferably, a plurality of rollers 33 are embedded and mounted on the support plate 32 . The rollers 33 can rotate freely relative to the support plate 32 . The rollers 33 are adapted to fit the rectangular hole, thereby facilitating relative movement between the support plate 32 and the rectangular hole.

[0055] Preferably, a limiting device is provided between the moving part and the base for limiting the movement of the moving part relative to the base.

[0056] In one embodiment, Figure 7 As shown, the limiting device includes a limiting hole 34 arranged on the side wall of the rectangular groove, and a limiting plate 35 is arranged above the moving part 6. The limiting plate 35 is installed above the moving part through a fourth spring 36 and a guide rod 37. Under the action of the fourth spring 36, the limiting plate 35 will always maintain a downward thrust. When the welding device needs to be moved, the limiting plate 35 is manually pulled out of the limiting hole 34 upward. When the movement is completed, the limiting plate 35 will be inserted into the limiting hole 34 again under the action of the fourth spring 36. Once the limiting plate 35 is inserted into the limiting hole 34, relative movement cannot occur between the support plate 32 and the rectangular hole.

[0057] In this embodiment, the limiting plate 35 is arranged at a position close to the end of the base 1, and the limiting plate 35 is provided with a bending portion and extends out of the base 1, so as to facilitate manual opening of the limiting device.

[0058] In one embodiment, Fig. 9 As shown, a positioning block 38 is provided on the side of the sliding seat 4, and the positioning block 38 is correspondingly provided with a clamping groove for clamping the welding gun. A connecting block 39 is installed to cooperate with the positioning block 38, and the connecting block 39 is also provided with a clamping groove. The clamping groove of the connecting block 39 and the clamping groove of the positioning block 38 clamp the welding gun from both sides. The positioning block 38 and the connecting block 39 can be connected by a connecting piece 40, such as a screw, a snap, etc.

[0059] In one embodiment, a wind speed detection device may be installed on the base to detect the current wind speed. When the wind speed is too high, it is not conducive to the welding operation and the operation needs to be stopped, providing a reference for the welding operation.

[0060] It should be noted that the expressions first, second, third, and fourth referred to in this application have no special meanings and are only used for structural distinction.

[0061] This embodiment is only a further explanation of the present invention, not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed, but as long as it is within the scope of the claims of the present invention, it will be protected by the patent law.

Claims

1. A marine steel structure welding device, characterized in that: Including base, welding gun, sliding guide; The sliding guide rail is installed on the base, and a sliding seat for welding, clamping and fixing is installed on the sliding guide rail; The lower end of the base is provided with a first magnetic attraction portion for adsorbing and fixing the base on the steel structure, and one side of the lower end of the base is also provided with a moving portion with a second magnetic attraction portion. The moving portion and the base are slidably connected, and the moving portion and the base can move relatively linearly, and the direction of the relative linear movement of the moving portion and the base is the same as the movement direction of the sliding seat along the sliding guide rail.

2. A steel structure welding device according to claim 1, characterized in that: The first magnetic attraction part includes a first electromagnetic adsorption device and a first lifting device, and the second magnetic attraction part includes a second electromagnetic adsorption device and a second lifting device; the first lifting device drives the first electromagnetic adsorption device to move up and down relative to the base, and the second lifting device drives the second electromagnetic adsorption device to move up and down relative to the moving part.

3. A steel structure welding device according to claim 2, characterized in that: A first buffer device is also connected between the first lifting device and the first electromagnetic adsorption device. When the first lifting device drives the first electromagnetic adsorption device to move downward relative to the base, the first buffer device is compressed. When the first lifting device drives the first electromagnetic adsorption device to move upward relative to the base, the first buffer device is reset. A second buffer device is also connected between the second lifting device and the second electromagnetic adsorption device. When the second lifting device drives the second electromagnetic adsorption device to move downward relative to the movable part, the second buffer device is compressed. When the second lifting device drives the second electromagnetic adsorption device to move upward relative to the movable part, the second buffer device is reset.

4. A steel structure welding device according to claim 3, characterized in that: The first electromagnetic adsorption device includes a plurality of first electromagnetic suction cups, and the first electromagnetic suction cups are evenly distributed in a circle outside the vertical center of the first buffer device.

5. A steel structure welding device according to claim 4, characterized in that: A damper is further connected between the first electromagnetic suction cup and the first buffer device, and each first electromagnetic suction cup is connected through a damper and extends to the outside of the first buffer device.

6. A steel structure welding device according to claim 5, characterized in that: One end of the damper is hingedly connected to the first buffer device, and the other end of the damper is connected to the first electromagnetic chuck via a universal joint.

7. A steel structure welding device according to claim 2, characterized in that: A sealing ring is also arranged outside the first electromagnetic suction cup. The sealing ring is movably sleeved outside the first electromagnetic suction cup. An elastic telescopic member is connected between the sealing ring and the outside of the first electromagnetic suction cup.

8. A steel structure welding device according to claim 7, characterized in that: A plurality of elastic pads are also provided at the bottom of the first electromagnetic suction cup.

9. A steel structure welding device according to claim 1, characterized in that: The sliding guide rail is arranged along the length direction of the base, and first magnetic attraction parts are respectively arranged at both ends of the length direction of the base; the welding gun is clamped on one side of the width direction of the base, and the moving part is located below the other side of the width direction of the base.

10. A steel structure welding device according to claim 9, characterized in that: A limiting device is also provided between the moving part and the base for limiting the movement of the moving part relative to the base. The limiting device is opened when the moving part and the base need to move relative to each other.

Images