Full-automatic assembling and welding device for offshore platform jacket

Abstract

The invention belongs to the technical field of welding, and discloses a full-automatic assembling and welding device for an ocean platform jacket. Two dehumidification assemblies; two clamping assemblies; and a moving assembly and a welding assembly. By installing the newly designed welding assembly, when the welding head is used for welding, protective gas is conveyed to the connecting ring through the ventilation pipe and drives the fan blades to rotate, then the protective gas is rectified by the conical block, part of the gas flow is directly blown under the guide of the three grooves, and the other part of the gas flow collides with the bottom face of the conical block and is spread to the periphery; according to the welding protection device, the movable block moves on the annular track in an annular mode, the positions of the guide pipe and the ventilation pipe can be properly adjusted so as to adapt to welding work, and the problems that existing protection gas cannot protect the whole welding area, and welding flexibility is affected are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of welding, and in particular relates to a fully automatic assembly welding device for an offshore platform jacket. Background Art

[0002] The jacket platform, also known as the pile platform, is supported by piles driven into the seabed. It can withstand external forces such as wind, waves, and currents. The jacket platform is mainly composed of four parts: jacket, piles, jacket cap and deck. Among them, the jacket is used as a supporting structure, the piles are used to fix the jacket to the seabed, the jacket cap is the transition structure between the jacket and the deck, and the deck carries various equipment and functional areas of the platform. The various parts of the conductor rack are fixed by bolts or welding, and in order to enhance its structural strength, a large number of oblique metal rods are used, but this will increase the difficulty of welding and assembly. In addition, the conductor rack is installed on the water surface. In order to reduce transportation costs, the welding and assembly areas are mostly located on the waterside, and the manufacturing and installation cycles are also long. In such a high water vapor environment, shielded welding is usually used to avoid the high humidity of water vapor, which will increase the negative effects of welding such as splashing and affecting the arc stability. However, the existing shielding gas is directly sleeved on the outside of the welding head, which cannot protect the entire welding area, has poor flexibility, and due to the increase in the diameter of the welding head, the flexibility of welding will also be affected. Summary of the invention

[0003] The object of the present invention is to provide a fully automatic assembly welding device for an offshore platform jacket, so as to solve the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a fully automatic assembly welding device for an offshore platform jacket, comprising a support assembly, wherein two dehumidification assemblies are fixedly installed inside the support assembly, and further comprising a linkage clamping mechanism, which comprises two clamping assemblies, wherein both of the two clamping assemblies are movably installed on the top of the support assembly, and a moving assembly is fixedly installed on the top of the two clamping assemblies; A welding assembly, wherein the welding assembly is fixedly mounted on the bottom of the movable assembly, the welding assembly comprises a fixed block, a circular track is fixedly mounted on the bottom of the fixed block, a welding head is fixedly connected to the inner center position of the circular track, three movable blocks are movably connected in the circular track, a guide tube is fixedly inserted in the movable block on the right side, ventilation pipes are fixedly inserted in the two movable blocks on the left side, connecting rings are fixedly connected to the tail ends of the two ventilation pipes, a fan blade is rotatably mounted inside the connecting ring, and a conical block is fixedly mounted on the outer side of the fan blade.

[0005] Preferably, the three moving blocks are each equipped with an electric guide wheel that can move within the annular track, and the conical surface of the conical block is surrounded by three grooves.

[0006] Preferably, the support assembly comprises a base, a rectangular track is fixedly mounted on the top of the base, four groups of rotating wheels are movably clamped in the rectangular track, and the inner sides of the four groups of rotating wheels are fixedly connected with a first screw rod.

[0007] Preferably, the dehumidification component includes two frames, the two frames are fixedly installed on the front and rear sides of the base, fans are fixedly installed in the two frames, a triangular prism is fixedly connected between the rotating shafts of the two fans, and a heating wire is installed around the outer edge of the triangular prism.

[0008] Preferably, the clamping assembly includes a movable plate, which is threadedly connected to the outer edge of the first screw rod, a screw motor is installed at the socket position of the movable plate and the first screw rod, a motor is fixedly installed on the top of the movable plate, the output shaft of the motor is fixedly connected to a U-shaped plate, torsion springs are fixedly connected to the symmetrical sides of the U-shaped plate, the tops of the two torsion springs are elastically connected to L-shaped rods, the other ends of the two L-shaped rods are rotatably installed with rubber wheels, the top rotating shafts of the two rubber wheels are plugged with second springs, and the two ends of the second springs are elastically connected to the U-shaped plate.

[0009] Preferably, the U-shaped plate is a combination plate of a bottom circular plate and a top U-shaped groove plate, and the two L-shaped rods are movably inserted in the circular plate.

[0010] Preferably, the moving component includes two second screw rods, and the two second screw rods are fixedly installed on the left and right sides of the base, and the outer edges of the two second screw rods are movably connected with a gantry, and a stepper motor is installed in the gantry and penetrates and is installed on the outer edge of the second screw rods. A rotating block is slidably installed on the inner side of the top of the gantry, and a robotic arm is fixedly connected to the bottom of the rotating block, and a fixed block is fixedly connected to the tail end of the robotic arm.

[0011] The beneficial effects of the present invention are as follows: 1. The present invention is equipped with a newly designed welding assembly. When the welding head is welding, the shielding gas is transported to the connecting ring through the ventilation pipe. After driving the fan blades to rotate, it will be rectified by the conical block. Part of the airflow will be blown directly under the guidance of the three grooves, while the other part of the airflow will hit the bottom surface of the conical block and spread around, so as to form a more complete protection area for the welding area. By moving the moving block in a circular motion on the circular track, the positions of the guide pipe and the ventilation pipe can be properly adjusted to adapt to the welding work, which solves the problem that the existing shielding gas cannot protect the entire welding area and affects the welding flexibility.

[0012] 2. The present invention is equipped with a newly designed clamping assembly. The metal tube is inserted into the area where the U-shaped plate is located. The rubber wheels on both sides clamp the metal tube when they come into contact with it. The second spring drives the torsion spring to rotate a certain angle in the U-shaped plate. The torsion spring provides a clamping force. When the two rubber wheels are displaced, the second spring on top of the rubber wheels also produces a C-shaped deformation, and also provides an inward clamping force on the metal tube. The newly designed clamping assembly can quickly position and move the two metal tubes that need to be welded, thereby improving the welding efficiency.

[0013] 3. The present invention is equipped with a self-rotating dehumidification component. The heating wire will generate heat to evaporate the water vapor in the clamping component area from bottom to top, and slowly drive the two fans to drive the triangular prism and the heating wire to rotate. The airflow generated by evaporation in this area can be discharged through the two fans. Together with the protective gas, it can greatly improve the welding effect in a high water vapor environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a top view of the overall structure of the present invention; Figure 3 This is a schematic diagram of the structure of the dehumidification component of the present invention; Figure 4 It is a schematic diagram of the structure of the clamping assembly of the present invention; Figure 5 This is a schematic diagram of the structure of the mobile assembly of the present invention; Figure 6 This is a schematic diagram of the structure of the welding assembly of the present invention; Figure 7 It is a schematic diagram of the conical block structure of the present invention.

[0015] In the figure: 1. Support assembly; 2. Dehumidification assembly; 3. Clamping assembly; 4. Moving assembly; 5. Welding assembly; 11. Base; 12. Rectangular track; 13. Rotating wheel; 14. First screw rod; 21. Frame; 22. Fan; 23. Triangular prism; 24. Heating wire; 31. Moving plate; 32. Motor; 33. U-shaped plate; 34. Torsion spring; 35. L-shaped rod; 36. Rubber wheel; 37. Second spring; 41. Second screw rod; 42. Gantry; 43. Rotating block; 44. Robotic arm; 51. Fixed block; 52. Annular track; 53. Moving block; 54. Guide pipe; 55. Ventilation pipe; 56. Connecting ring; 57. Fan blade; 58. Conical block; 59. Welding head. DETAILED DESCRIPTION

[0016] 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.

[0017] like Figures 1 to 7 As shown, an embodiment of the present invention provides a fully automatic assembly welding device for an offshore platform jacket, comprising a support assembly 1, wherein two dehumidification assemblies 2 are fixedly installed inside the support assembly 1, and further comprising a linkage clamping mechanism, which comprises two clamping assemblies 3, wherein the two clamping assemblies 3 are movably installed on the top of the support assembly 1, and a moving assembly 4 is fixedly installed on the top of the two clamping assemblies 3; The welding assembly 5 is fixedly installed at the bottom of the moving assembly 4. The welding assembly 5 includes a fixed block 51. A circular track 52 is fixedly installed at the bottom of the fixed block 51. A welding head 59 is fixedly connected to the inner center of the circular track 52. Three moving blocks 53 are movably connected in the circular track 52. A guide tube 54 is fixedly inserted in the right moving block 53. Ventilation pipes 55 are fixedly inserted in the two left moving blocks 53. The tail ends of the two ventilation pipes 55 are fixedly connected with connecting rings 56. A fan blade 57 is rotatably installed inside the connecting ring 56. A conical block 58 is fixedly installed on the outer side of the fan blade 57. Electric guide wheels are installed in the three moving blocks 53 to move in the circular track 52. Three grooves are opened around the conical surface of the conical block 58. When the welding head 59 is welding, a shielding gas is connected through the ventilation pipe 55 to blow the welding position. The shielding gas is transported to the connecting ring 56 through the ventilation pipe 55, and after driving the fan blade 57 to rotate, it will be rectified by the conical block 58. Part of the airflow will be blown directly under the guidance of the three grooves, while the other part of the airflow will hit the bottom surface of the conical block 58 and spread around, so as to form a more complete protection area for the welding area. Through the circular movement of the moving block 53 on the annular track 52, the positions of the guide pipe 54 and the ventilation pipe 55 can be appropriately adjusted to adapt to the welding work, which solves the problem that the existing shielding gas cannot protect the entire welding area and affects the welding flexibility. The support assembly 1 includes a base 11, a rectangular track 12 is fixedly installed on the top of the base 11, four sets of rotating wheels 13 are movably connected in the rectangular track 12, the inner sides of the four sets of rotating wheels 13 are all fixedly connected with a first screw rod 14, and the rotating wheels 13 are driven by an electric motor and can move in the rectangular track 12; The movable plate 31 can be driven to move in the direction of the first screw rod 14, and the rotating wheel 13 also moves on the rectangular track 12 at the same time. The motor 32 is driven according to the welding needs to drive the two clamped metal pipes to rotate to a certain angle and align them; The dehumidification assembly 2 includes two frames 21, which are fixedly mounted on the front and rear sides of the base 11. Fans 22 are fixedly mounted in the two frames 21. A triangular prism 23 is fixedly connected between the rotating shafts of the two fans 22. A heating wire 24 is mounted around the outer edge of the triangular prism 23. The heating wire 24 generates heat to evaporate the water vapor in the area of ​​the clamping component 3 from bottom to top, and slowly drives the two fans 22 to drive the triangular prism 23 and the heating wire 24 to rotate. The airflow generated by evaporation in this area can be discharged through the two fans 22, and cooperate with the protective gas to greatly improve the welding effect in a high water vapor environment; The clamping assembly 3 includes a movable plate 31, which is threadedly connected to the outer edge of the first screw rod 14. A screw motor is installed at the socket position of the movable plate 31 and the first screw rod 14, which can drive the movable plate 31 to move. A motor 32 is fixedly installed on the top of the movable plate 31, and the output shaft of the motor 32 is fixedly connected to a U-shaped plate 33. Torsion springs 34 are fixedly connected to the symmetrical sides of the U-shaped plate 33. The tops of the two torsion springs 34 are elastically connected to L-shaped rods 35. The other ends of the two L-shaped rods 35 are rotatably installed with rubber wheels 36. The top rotating shafts of the two rubber wheels 36 are plugged with second springs 37. The two ends of the two second springs 37 are elastically connected to the U-shaped plate 33. The U-shaped plate 33 is a combination plate of a bottom circular plate and a top U-shaped groove plate, and the two L-shaped rods 35 are movably plugged into the circular plate. Install the two metal pipes to be welded on the clamping assembly 3, insert the metal pipe along the area where the U-shaped plate 33 is located, and the rubber wheels 36 on both sides will clamp the metal pipe when they come into contact with it. The second spring 37 drives the torsion spring 34 to rotate a certain angle in the U-shaped plate 33, and the torsion spring 34 will provide a clamping force. When the two rubber wheels 36 are displaced, the second spring 37 on the top thereof will also produce a C-shaped deformation, and also provide an inward clamping force on the metal pipe. The moving assembly 4 includes two second screw rods 41, which are fixedly mounted on the left and right sides of the base 11. The outer edges of the two second screw rods 41 are movably sleeved with a gantry 42, and a stepper motor is installed in the gantry 42, which penetrates and is installed on the outer edge of the second screw rods 41. A rotating block 43 is slidably mounted on the inner side of the top of the gantry 42, and a mechanical arm 44 is fixedly connected to the bottom of the rotating block 43, and a fixed block 51 is fixedly connected to the tail end of the mechanical arm 44; The moving component 4 can move the welding component 5 to the position of the metal pipe for welding. The gantry 42 moves back and forth at the position of the second screw rod 41, and the rotating block 43 moves the mechanical arm 44 and the welding component 5 laterally on the slide rail inside the second screw rod 41. By rotating the rotating block 43, the rotation angle of the mechanical arm 44 and the welding component 5 can be arbitrarily changed.

[0018] Working principle: When using the present invention, firstly, two metal pipes to be welded are mounted on the clamping assembly 3, and the metal pipes are inserted along the area where the U-shaped plate 33 is located. When the rubber wheels 36 on both sides contact the metal pipes, they will clamp them. The second spring 37 drives the torsion spring 34 to rotate a certain angle in the U-shaped plate 33. The torsion spring 34 provides a clamping force, and when the two rubber wheels 36 are displaced, the second spring 37 on the top thereof will also produce a C-shaped deformation, and also provide an inward clamping force on the metal pipe. After the two metal pipes to be welded are installed, the moving plate 31 can be driven to move in the direction where the first screw rod 14 is located. While moving, the rotating wheel 13 also moves on the rectangular track 12. The motor 32 is driven according to the welding needs to drive the two clamped metal pipes to rotate to a certain angle and align them. Then start the dehumidification component 2 to dehumidify the welding environment. The heating wire 24 will generate heat to evaporate the water vapor in the area of ​​the clamping component 3 from bottom to top, and slowly drive the two fans 22 to drive the triangular prism 23 and the heating wire 24 to rotate. The airflow generated by evaporation in this area can be discharged through the two fans 22; After the preparation work is completed, the moving assembly 4 is driven to move the welding assembly 5 to the position of the metal pipe for welding. The gantry 42 moves forward and backward at the position of the second screw rod 41, and the rotating block 43 moves the mechanical arm 44 and the welding assembly 5 horizontally on the slide rail in the second screw rod 41. The mechanical arm 44 and the welding assembly 5 can be arbitrarily changed in rotation angle by rotating the rotating block 43. At this time, the welding rod is inserted into the guide tube 54, the welding head 59 is started, and welding is performed at the connection of the metal pipe. The welding assembly 5 can be slowly moved by the mechanical arm 44 to form a uniform weld, and the welding head 59 is moved forward and backward to form a uniform weld. When welding, a shielding gas is connected through the ventilation pipe 55 to blow on the welding position. The shielding gas is transported to the connecting ring 56 through the ventilation pipe 55, and after driving the fan blade 57 to rotate, it will be rectified by the conical block 58. Part of the airflow will be blown directly under the guidance of the three grooves, while the other part of the airflow will hit the bottom surface of the conical block 58 and spread around, so as to form a more complete protection area for the welding area. By moving the moving block 53 in a circular motion on the annular track 52, the positions of the guide pipe 54 and the ventilation pipe 55 can be appropriately adjusted to adapt to the welding work, and the work process ends here.

[0019] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0020] 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 fully automatic assembly welding device for an offshore platform jacket, comprising a support assembly (1), characterized in that: The support assembly (1) has two dehumidification assemblies (2) fixedly installed inside, and further includes: A linkage clamping mechanism, comprising two clamping assemblies (3), wherein the two clamping assemblies (3) are movably mounted on the top of the support assembly (1), and a moving assembly (4) is fixedly mounted on the top of the two clamping assemblies (3); A welding assembly (5), wherein the welding assembly (5) is fixedly mounted on the bottom of the moving assembly (4), and the welding assembly (5) comprises a fixed block (51), a circular track (52) is fixedly mounted on the bottom of the fixed block (51), a welding head (59) is fixedly connected to the inner center position of the circular track (52), three moving blocks (53) are movably connected in the circular track (52), a guide tube (54) is fixedly inserted in the right moving block (53), two left moving blocks (53) are fixedly inserted with ventilation pipes (55), the tail ends of the two ventilation pipes (55) are fixedly connected with a connecting ring (56), a fan blade (57) is rotatably mounted inside the connecting ring (56), and a conical block (58) is fixedly mounted on the outer side of the fan blade (57).

2. The fully automatic assembly welding device for an offshore platform jacket according to claim 1 is characterized in that: The three moving blocks (53) are each equipped with an electric guide wheel that can move within the annular track (52), and the conical surface of the conical block (58) is surrounded by three grooves.

3. The fully automatic assembly welding device for an offshore platform jacket according to claim 2 is characterized in that: The support assembly (1) comprises a base (11), a rectangular track (12) being fixedly mounted on the top of the base (11), four groups of rotating wheels (13) being movably engaged in the rectangular track (12), and the inner sides of the four groups of rotating wheels (13) are all fixedly connected to a first screw rod (14).

4. The fully automatic assembly welding device for an offshore platform jacket according to claim 3 is characterized in that: The dehumidification component (2) comprises two frames (21), the two frames (21) being fixedly mounted on the front and rear sides of the base (11), the two frames (21) being fixedly mounted with fans (22), the rotating shafts of the two fans (22) being fixedly connected with a triangular prism (23), and the outer edge of the triangular prism (23) being surrounded by a heating wire (24).

5. The fully automatic assembly welding device for an offshore platform jacket according to claim 4 is characterized in that: The clamping assembly (3) comprises a movable plate (31), the movable plate (31) being threadedly connected to the outer edge of the first screw rod (14), a screw motor being installed at the sleeved position between the movable plate (31) and the first screw rod (14), a motor (32) being fixedly installed on the top of the movable plate (31), an output shaft of the motor (32) being fixedly connected to a U-shaped plate (33), torsion springs (34) being fixedly connected to the symmetrical sides of the U-shaped plate (33), the tops of the two torsion springs (34) being elastically connected to L-shaped rods (35), the other ends of the two L-shaped rods (35) being rotatably installed with rubber wheels (36), the top rotation axes of the two rubber wheels (36) being plugged with second springs (37), and both ends of the two second springs (37) being elastically connected to the U-shaped plate (33).

6. The fully automatic assembly welding device for an offshore platform jacket according to claim 5, characterized in that: The U-shaped plate (33) is a composite plate of a bottom circular plate and a top U-shaped groove plate, and the two L-shaped rods (35) are movably inserted in the circular plate.

7. The fully automatic assembly welding device for an offshore platform jacket according to claim 3 is characterized in that: The moving assembly (4) comprises two second screw rods (41), the two second screw rods (41) are fixedly mounted on the left and right sides of the base (11), the outer edges of the two second screw rods (41) are movably sleeved with a gantry (42), a stepping motor is installed in the gantry (42) and penetrates and is installed on the outer edge of the second screw rod (41), a rotating block (43) is slidably mounted on the inner side of the top of the gantry (42), a mechanical arm (44) is fixedly connected to the bottom of the rotating block (43), and a fixed block (51) is fixedly connected to the tail end of the mechanical arm (44).

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