Welding process for vehicle carrier ships

Abstract

The present application relates to a kind of vehicle transport ship's welding process, by the size of adjacent i layer deck and i+1 layer deck is fixed, then weld the multiple deck segments of i layer deck, then weld i layer column, i layer column is welded to i layer deck, to avoid the deformation of deck layer, since i layer deck and i+1 layer deck are respectively installed in starboard deck and port deck by movable block, so that the height of i layer deck and i+1 layer deck is determined, can make the column meet the perpendicularity requirement, so that the upper and lower two side columns meet the alignment node requirement, avoid cutting correction.From the completion of top deck segment welding, in turn towards the direction of first layer, in turn weld the deck segment of corresponding layer of port deck and starboard deck, avoid the welding gap of side and deck layer, large heat input, it can lead to the deformation of port and starboard plate.

Description

Technical Field

[0001] This invention relates to the field of deck welding for vehicle transport vessels, and more specifically, to a welding process for vehicle transport vessels. Background Technology

[0002] Carrier transport vessels (PCTCs) are roll-on / roll-off (Ro-Ro) ships specifically designed for transporting wheeled cargo such as cars and trucks. These vessels are characterized by continuous decks within their cargo holds, without internal compartments or pillars, allowing vehicles to be driven directly onto and off the ship via ramps at the bow or stern, enabling efficient and convenient loading and unloading operations. PCTC ships typically have multiple deck levels, allowing for the stacking of multiple layers of vehicles, significantly increasing cargo capacity per unit space.

[0003] The conventional assembly and welding sequence for thin plates is as follows: weld one layer of deck, then weld the four sections of the first layer of deck, then weld the columns, and then hoist and weld the second layer of deck until all deck welding is completed. In addition, this method is inefficient, as welding one layer and assembling another layer results in a waiting period on site.

[0004] (1) This will cause the deck to form a “pyramid” shape in the length and width directions. At this time, the outer plate of the side will be assembled and there will be a scissor gap with the deck, resulting in cutting and replacing the plate.

[0005] (2) The columns are not constrained by the upper deck, which can easily lead to large verticality deviations after welding. The columns of vehicle transport ships are the only load-bearing structures supporting the deck. Therefore, the verticality requirement of the columns is very high, ±3mm. It is impossible to guarantee the alignment of the upper and lower columns, which leads to the need for cutting and correction.

[0006] (3) At the same time, the large gap between the side and the deck welding results in a large heat input, which will cause the side outer plate to deform, affecting the ship's width and increasing the "lean horse phenomenon" of the outer plate.

[0007] Therefore, it is imperative to study a welding process for vehicle transport vessels that can solve some of the aforementioned technical problems. Summary of the Invention

[0008] This application provides a welding process for vehicle transport vessels that can reduce deck deformation, avoid shear gaps on the deck, ensure the verticality of the columns meets requirements, and prevent deformation of the side outer plates.

[0009] This application provides a welding process for a vehicle transport vessel, comprising: laying a first and second deck layer; installing port and starboard sides on both sides of the deck layer; placing the i-th layer pillar on the (i-1)-th deck layer, where i is greater than or equal to 2; setting multiple deck segments of the (i+1)-th deck layer at the ends of the i-th layer pillar; connecting any adjacent deck segments of the (i+1)-th deck layer via multiple movable blocks; connecting the (i+1)-th deck layer to the port deck layer via movable blocks, and connecting the (i+1)-th deck layer to the starboard deck layer via movable blocks; welding the multiple deck segments of the i-th deck layer; welding the i-th layer pillar to the i-th deck layer; after the multiple deck segments of the top deck layer are welded, sequentially welding the port deck and the corresponding deck segments from the top layer towards the first layer, and sequentially welding the starboard deck and the corresponding deck segments.

[0010] In some optional embodiments, the steps prior to laying the first deck include: setting up a workbench with multiple support components; setting multiple deck segments for placing the first deck at the ends of the multiple support components, the multiple deck segments being arranged in an array, welding any two adjacent deck segments together, the array of multiple deck segments comprising n rows and k columns; and connecting any adjacent deck segments of the first deck through multiple movable blocks.

[0011] In some optional embodiments, the plurality of support components are arranged in a matrix, and the levelness of the surface of each support component in contact with the first deck is within a preset error range.

[0012] In some alternative embodiments, the error range is between -4mm and +4mm.

[0013] In some optional embodiments, the step of laying the second deck includes placing the first layer of pillars on the first layer of deck; setting multiple deck segments of the second layer of deck at the ends of the first layer of pillars; and connecting any adjacent deck segments of the second layer of deck through multiple movable blocks.

[0014] In some optional embodiments, the step of installing the port and starboard sides on both sides of the deck layer includes setting n port and n starboard sides of the ship segment on both sides of the deck layer, with the i-th port side corresponding to the i-th row of the deck layer and the i-th starboard side corresponding to the i-th row of the deck layer.

[0015] In some optional embodiments, the step of installing the port and starboard sides on both sides of the deck layer further includes aligning the deck layers of the adjacent port side and connecting them by movable blocks; aligning the deck layers of the adjacent starboard side and connecting them by movable blocks.

[0016] In some alternative embodiments, between the steps of installing the port and starboard sides on both sides of the deck layer and the steps of placing the i-th layer pillar on the (i-1)-th deck layer, the port deck and the starboard deck are connected to the first deck layer and the second deck layer respectively via multiple movable blocks.

[0017] In some optional embodiments, after the step of connecting the port deck and the starboard deck to the first deck and the second deck respectively via multiple movable blocks, the method further includes welding multiple deck segments of the first deck and welding the first deck pillars to the first deck.

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

[0019] This application provides a welding process for a vehicle transport vessel. After fixing the dimensions of adjacent i-th and i+1-th decks, multiple deck segments of the i-th deck are welded, followed by the welding of the i-th deck's pillars. The i-th deck's pillars are then welded to the i-th deck, thus avoiding deformation of the i-th deck due to its own welding and pillar welding. Since the i-th and i+1-th decks are respectively installed on the starboard and port decks via movable blocks, their heights are determined, ensuring the pillars meet verticality requirements and alignment requirements on both sides, avoiding the need for cutting corrections. When i = m-1, the port deck and corresponding deck segments are welded sequentially from the top layer towards the first layer, followed by the starboard deck and corresponding deck segments. This avoids large welding gaps between the hull and deck layers, which would result in high heat input and deformation of the port and starboard outer plating, affecting the ship's width and increasing the need for additional plating. Attached Figure Description

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 A schematic flowchart of the welding process for a vehicle transport vessel provided in an embodiment of the present invention is shown;

[0022] Figure 2 This is a schematic diagram of the structure of a vehicle transport vessel provided in an embodiment of the present invention. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0025] Carrier transport vessels (PCTCs) are roll-on / roll-off (Ro-Ro) ships specifically designed for transporting wheeled cargo such as cars and trucks. These vessels are characterized by continuous decks within their cargo holds, without internal compartments or pillars, allowing vehicles to be driven directly onto and off the ship via ramps at the bow or stern, enabling efficient and convenient loading and unloading operations. PCTC ships typically have multiple deck levels, allowing for the stacking of multiple layers of vehicles, significantly increasing cargo capacity per unit space.

[0026] The conventional assembly and welding sequence for thin plates is as follows: weld one layer of deck, then weld the four sections of the first layer of deck, then weld the columns, and then hoist and weld the second layer of deck until all deck welding is completed. In addition, this method is inefficient, as welding one layer and assembling another layer results in a waiting period on site.

[0027] (1) This will cause the deck to form a “pyramid” shape in the length and width directions. At this time, the outer plate of the side will be assembled and there will be a scissor gap with the deck, resulting in cutting and replacing the plate.

[0028] (2) The columns are not constrained by the upper deck, which can easily lead to large verticality deviations after welding. The columns of vehicle transport ships are the only load-bearing structures supporting the deck. Therefore, the verticality requirement of the columns is very high, ±3mm. It is impossible to guarantee the alignment of the upper and lower columns, which leads to the need for cutting and correction.

[0029] (3) At the same time, the large gap between the side and the deck welding results in a large heat input, which will cause the side outer plate to deform, affecting the ship's width and increasing the "lean horse phenomenon" of the outer plate.

[0030] Therefore, it is imperative to study a welding process for vehicle transport vessels that can solve some of the aforementioned technical problems.

[0031] This application provides a structure and welding process for a vehicle transport vessel, which can reduce deck deformation, avoid shear gaps on the deck, ensure the verticality of the columns meets requirements, and prevent deformation of the side plates.

[0032] This application provides a structure for a vehicle transport vessel, which includes multiple cabin sections, each of which includes a top deck. The decks at corresponding positions of each cabin section are welded sequentially. Multiple decks are arranged sequentially along the height of the vehicle transport vessel. Each deck layer is formed by welding multiple deck sections, a port deck, and a starboard deck. The multiple deck sections are arranged in an array. Any two adjacent deck sections are welded together. The array of multiple deck sections includes n rows and k columns. The first column of the deck section in the i-th row is welded to the port deck, and the k-th column of the deck section in the i-th row is welded to the starboard deck. Multiple columns are arranged between any adjacent deck layers. One end of each column is welded to the i-th deck layer, and the other end of each column abuts against the (i+1)-th deck layer.

[0033] This application also provides a welding process for a vehicle transport vessel, capable of fabricating the structure of the vehicle transport vessel as described above, comprising at least the following steps: laying a first and second deck layer; placing an i-th layer pillar on the i-th layer deck, where i is greater than or equal to 2; setting multiple deck segments of the (i+1)-th layer deck at the ends of the i-th layer pillar; connecting any adjacent deck segments of the (i+1)-th layer deck via multiple movable blocks; connecting the (i+1)-th layer deck to the port deck layer via movable blocks, and connecting the (i+1)-th layer deck to the starboard deck layer via movable blocks; welding the multiple deck segments of the i-th layer deck; welding the i-th layer pillar to the i-th layer deck; after the multiple deck segments of the top deck are welded, sequentially welding the port deck and the corresponding deck segments from the top layer toward the first layer, and sequentially welding the starboard deck and the corresponding deck segments.

[0034] Specifically, the i-th layer pillar is placed on the i-th deck, where i is greater than or equal to 2. Multiple deck segments of the (i+1)-th deck are provided at the ends of the i-th layer pillar. Any adjacent deck segments of the (i+1)-th deck are connected by multiple movable blocks. The (i+1)-th deck is connected to the port deck layer and the starboard deck layer by movable blocks, thereby fixing the dimensions of the (i+1)-th deck. Before placing the i-th layer pillar on the i-th deck, any adjacent deck segments of the i-th deck are connected by multiple movable blocks. The i-th deck is connected to the port deck layer and the starboard deck layer by movable blocks, thereby fixing the dimensions of the i-th deck.

[0035] After fixing the dimensions of the adjacent i-th deck and i+1-th deck, remove multiple movable blocks from multiple deck sections of the i-th deck, then weld multiple deck sections of the i-th deck, followed by welding the i-th deck pillars. Welding the i-th deck pillars to the i-th deck avoids deformation of the i-th deck due to its own welding and pillar welding. Since the i-th and i+1-th decks are installed on the starboard and port decks respectively via movable blocks, their heights are determined, ensuring the pillars meet verticality requirements and alignment requirements on both sides, avoiding the need for cutting corrections. When i = m-1, weld the port deck and corresponding deck sections sequentially from the top layer towards the first layer, and then weld the starboard deck and corresponding deck sections sequentially. This avoids large welding gaps between the hull side and deck layers, which would result in large heat input and cause deformation of the port and starboard outer plating, affecting the ship's width and increasing the "lean horse" phenomenon in the outer plating.

[0036] In some optional embodiments, the steps prior to laying the first deck include: setting up a workbench with multiple support components; setting multiple deck segments for placing the first deck at the ends of the multiple support components, the multiple deck segments being arranged in an array, welding any two adjacent deck segments, the array of multiple deck segments comprising n rows and k columns; and connecting any adjacent deck segments of the first deck through multiple movable blocks.

[0037] Specifically, multiple support components are arranged on a workbench; multiple deck segments for placing the first deck are arranged at the ends of the multiple support components, and the multiple deck segments are arranged in an array. Any two adjacent deck segments are welded together, and the array of multiple deck segments includes n rows and k columns; any adjacent deck segments of the first deck are connected by multiple movable blocks; a first-level column is placed on the first deck; multiple deck segments of the second deck are arranged at the ends of the first-level column; any adjacent deck segments of the second deck are connected by multiple movable blocks; the ship... The n port and n starboard sections of the ship are arranged on both sides of the deck layer. The i-th port section corresponds to the i-th row of decks, and the i-th starboard section corresponds to the i-th row of decks. The decks of adjacent port sections are aligned and connected by movable blocks. The decks of adjacent starboard sections are aligned and connected by movable blocks. The port and starboard decks are connected to the first and second decks respectively by multiple movable blocks. The movable blocks connecting multiple deck sections in the first deck are removed, and multiple deck sections of the first deck are welded. The first-layer pillars are welded to the first-layer deck.

[0038] In some optional embodiments, the plurality of support components are arranged in a matrix, and the levelness of the surface of each support component in contact with the first deck is within a preset error range.

[0039] Specifically, a workbench is set up with multiple supporting components; multiple deck segments for placing the first deck are set at the ends of the multiple supporting components, and the multiple deck segments are arranged in an array. Any two adjacent deck segments are welded together, and the array of multiple deck segments includes n rows and k columns; any adjacent deck segments of the first deck are connected by multiple movable blocks; a first-level column is placed on the first deck; multiple deck segments of the second deck are set at the ends of the first-level column; any adjacent deck segments of the second deck are connected by... Multiple movable blocks are connected; n port and n starboard sections of the ship are arranged on both sides of the deck layer, with the i-th port section corresponding to the i-th row of deck layers, and the i-th starboard section corresponding to the i-th row of deck layers; the deck layers of adjacent port sections are aligned and connected by movable blocks; the deck layers of adjacent starboard sections are aligned and connected by movable blocks; the port deck and the starboard deck are respectively connected to the first deck layer and the second deck layer by multiple movable blocks; multiple deck sections of the first deck layer are welded, and the first deck layer pillars are welded to the first deck layer.

[0040] Furthermore, after fixing the dimensions of the adjacent i-th deck and i+1-th deck, multiple deck sections of the i-th deck are welded, followed by the welding of the i-th deck pillars. The i-th deck pillars are then welded to the i-th deck, thus avoiding deformation of the i-th deck due to its own welding and pillar welding. Since the i-th and i+1-th decks are installed on the starboard and port decks respectively via movable blocks, the heights of the i-th and i+1-th decks are determined, ensuring the pillars meet verticality requirements and that the upper and lower pillars meet alignment requirements, avoiding the need for cutting corrections. When i = m-1, the port deck and corresponding deck sections are welded sequentially from the top layer towards the first layer, and the starboard deck and corresponding deck sections are welded sequentially. This avoids large welding gaps between the hull side and deck layers, which would result in large heat input and cause deformation of the port and starboard outer plating, affecting the ship's width and increasing the "lean horse phenomenon" of the outer plating.

[0041] In some alternative embodiments, the error range is between -4mm and +4mm.

[0042] Specifically, multiple support components are arranged on a workbench; multiple deck segments for placing the first deck are arranged at the ends of the multiple support components, and the multiple deck segments are arranged in an array. Any two adjacent deck segments are welded together, and the array of multiple deck segments includes n rows and k columns; any adjacent deck segments of the first deck are connected by multiple movable blocks; a first-level column is placed on the first deck; multiple deck segments of the second deck are arranged at the ends of the first-level column; any adjacent deck segments of the second deck are connected by multiple movable blocks; the ship... The n port and n starboard sections of the ship are arranged on both sides of the deck layer. The i-th port section corresponds to the i-th row of decks, and the i-th starboard section corresponds to the i-th row of decks. The decks of adjacent port sections are aligned and connected by movable blocks. The decks of adjacent starboard sections are aligned and connected by movable blocks. The port and starboard decks are connected to the first and second decks respectively by multiple movable blocks. The movable blocks connecting multiple deck sections in the first deck are removed, and multiple deck sections of the first deck are welded. The first-layer pillars are welded to the first-layer deck.

[0043] Furthermore, after fixing the dimensions of the adjacent i-th deck and i+1-th deck, multiple deck sections of the i-th deck are welded, followed by the welding of the i-th deck pillars. The i-th deck pillars are then welded to the i-th deck, thus avoiding deformation of the i-th deck due to its own welding and pillar welding. Since the i-th and i+1-th decks are installed on the starboard and port decks respectively via movable blocks, their heights are determined, ensuring the pillars meet verticality requirements and alignment requirements on both sides, avoiding the need for cutting corrections. After the multiple deck sections of the top deck are welded, the port deck and corresponding deck sections are welded sequentially from the top deck towards the first deck, and the starboard deck and corresponding deck sections are welded sequentially. This avoids large welding gaps between the hull side and deck layers, which would result in high heat input and cause deformation of the port and starboard outer plating, affecting the ship's width and increasing the "lean horse" phenomenon in the outer plating.

[0044] In some optional embodiments, the step of laying the second deck includes placing the first layer of pillars on the first layer of deck; setting multiple deck segments of the second layer of deck at the ends of the first layer of pillars; and connecting any adjacent deck segments of the second layer of deck through multiple movable blocks.

[0045] Specifically, a workbench is set up with multiple supporting components; multiple deck segments for placing the first deck are set at the ends of the multiple supporting components, and the multiple deck segments are arranged in an array. Any two adjacent deck segments are welded together, and the array of multiple deck segments includes n rows and k columns; any adjacent deck segments of the first deck are connected by multiple movable blocks; a first-level column is placed on the first deck; multiple deck segments of the second deck are set at the ends of the first-level column; any adjacent deck segments of the second deck are connected by... Multiple movable blocks are connected; n port and n starboard sections of the ship are arranged on both sides of the deck layer, with the i-th port section corresponding to the i-th row of deck layers, and the i-th starboard section corresponding to the i-th row of deck layers; the deck layers of adjacent port sections are aligned and connected by movable blocks; the deck layers of adjacent starboard sections are aligned and connected by movable blocks; the port deck and the starboard deck are respectively connected to the first deck layer and the second deck layer by multiple movable blocks; multiple deck sections of the first deck layer are welded, and the first deck layer pillars are welded to the first deck layer.

[0046] Furthermore, after fixing the dimensions of the adjacent i-th deck and i+1-th deck, multiple deck sections of the i-th deck are welded, followed by the welding of the i-th deck pillars. The i-th deck pillars are then welded to the i-th deck, thus avoiding deformation of the i-th deck due to its own welding and pillar welding. Since the i-th and i+1-th decks are installed on the starboard and port decks respectively via movable blocks, the heights of the i-th and i+1-th decks are determined, ensuring the pillars meet verticality requirements and that the upper and lower pillars meet alignment requirements, avoiding the need for cutting corrections. When i = m-1, the port deck and corresponding deck sections are welded sequentially from the top layer towards the first layer, and the starboard deck and corresponding deck sections are welded sequentially. This avoids large welding gaps between the hull side and deck layers, which would result in large heat input and cause deformation of the port and starboard outer plating, affecting the ship's width and increasing the "lean horse phenomenon" of the outer plating.

[0047] In some optional embodiments, the step of installing the port and starboard sides on both sides of the deck layer includes setting n port and n starboard sides of the ship segment on both sides of the deck layer, with the i-th port side corresponding to the i-th row of the deck layer and the i-th starboard side corresponding to the i-th row of the deck layer.

[0048] Specifically, a workbench is set up with multiple supporting components; multiple deck segments for placing the first deck are set at the ends of the multiple supporting components, and the multiple deck segments are arranged in an array. Any two adjacent deck segments are welded together, and the array of multiple deck segments includes n rows and k columns; any adjacent deck segments of the first deck are connected by multiple movable blocks; a first-level column is placed on the first deck; multiple deck segments of the second deck are set at the ends of the first-level column; any adjacent deck segments of the second deck are connected by multiple movable blocks. The ship is connected by multiple movable blocks; n port sides and n starboard sides of the ship are arranged on both sides of the deck layer, with the i-th port side corresponding to the i-th row of deck layers and the i-th starboard side corresponding to the i-th row of deck layers; the deck layers of adjacent port sides are aligned and connected by movable blocks; the deck layers of adjacent starboard sides are aligned and connected by movable blocks; the port side deck and the starboard side deck are respectively connected to the first deck layer and the second deck layer by multiple movable blocks; multiple deck sections of the first deck layer are welded, and the first deck layer pillars are welded to the first deck layer.

[0049] Furthermore, after fixing the dimensions of the adjacent i-th deck and i+1-th deck, multiple deck sections of the i-th deck are welded, followed by the welding of the i-th deck pillars. The i-th deck pillars are then welded to the i-th deck, thus avoiding deformation of the i-th deck due to its own welding and pillar welding. Since the i-th and i+1-th decks are installed on the starboard and port decks respectively via movable blocks, the heights of the i-th and i+1-th decks are determined, ensuring the pillars meet verticality requirements and that the upper and lower pillars meet alignment requirements, avoiding the need for cutting corrections. When i = m-1, the port deck and corresponding deck sections are welded sequentially from the top layer towards the first layer, and the starboard deck and corresponding deck sections are welded sequentially. This avoids large welding gaps between the hull side and deck layers, which would result in large heat input and cause deformation of the port and starboard outer plating, affecting the ship's width and increasing the "lean horse phenomenon" of the outer plating.

[0050] In some optional embodiments, the step of installing the port and starboard sides on both sides of the deck layer further includes aligning the deck layers of adjacent port sides and connecting them by movable blocks; aligning the deck layers of adjacent starboard sides and connecting them by movable blocks.

[0051] Specifically, a workbench is set up with multiple supporting components; multiple deck segments for placing the first deck are set at the ends of the multiple supporting components, and the multiple deck segments are arranged in an array. Any two adjacent deck segments are welded together, and the array of multiple deck segments includes n rows and k columns; any adjacent deck segments of the first deck are connected by multiple movable blocks; a first-level column is placed on the first deck; multiple deck segments of the second deck are set at the ends of the first-level column; any adjacent deck segments of the second deck are connected by... Multiple movable blocks are connected; n port and n starboard sections of the ship are arranged on both sides of the deck layer, with the i-th port section corresponding to the i-th row of deck layers, and the i-th starboard section corresponding to the i-th row of deck layers; the deck layers of adjacent port sections are aligned and connected by movable blocks; the deck layers of adjacent starboard sections are aligned and connected by movable blocks; the port deck and the starboard deck are respectively connected to the first deck layer and the second deck layer by multiple movable blocks; multiple deck sections of the first deck layer are welded, and the first deck layer pillars are welded to the first deck layer.

[0052] Furthermore, after fixing the dimensions of the adjacent i-th deck and i+1-th deck, multiple deck sections of the i-th deck are welded, followed by the welding of the i-th deck pillars. The i-th deck pillars are then welded to the i-th deck, thus avoiding deformation of the i-th deck due to its own welding and pillar welding. Since the i-th and i+1-th decks are installed on the starboard and port decks respectively via movable blocks, the heights of the i-th and i+1-th decks are determined, ensuring the pillars meet verticality requirements and that the upper and lower pillars meet alignment requirements, avoiding the need for cutting corrections. When i = m-1, the port deck and corresponding deck sections are welded sequentially from the top layer towards the first layer, and the starboard deck and corresponding deck sections are welded sequentially. This avoids large welding gaps between the hull side and deck layers, which would result in large heat input and cause deformation of the port and starboard outer plating, affecting the ship's width and increasing the "lean horse phenomenon" of the outer plating.

[0053] In some alternative embodiments, between the steps of installing the port and starboard sides on both sides of the deck layer and the steps of placing the i-th layer pillar on the (i-1)-th deck layer, the port deck and the starboard deck are connected to the first deck layer and the second deck layer respectively via multiple movable blocks.

[0054] Specifically, a workbench is set up with multiple supporting components; multiple deck segments for placing the first deck are set at the ends of the multiple supporting components, and the multiple deck segments are arranged in an array. Any two adjacent deck segments are welded together, and the array of multiple deck segments includes n rows and k columns; any adjacent deck segments of the first deck are connected by multiple movable blocks; a first-level column is placed on the first deck; multiple deck segments of the second deck are set at the ends of the first-level column; any adjacent deck segments of the second deck are connected by... Multiple movable blocks are connected; n port and n starboard sections of the ship are arranged on both sides of the deck layer, with the i-th port section corresponding to the i-th row of deck layers, and the i-th starboard section corresponding to the i-th row of deck layers; the deck layers of adjacent port sections are aligned and connected by movable blocks; the deck layers of adjacent starboard sections are aligned and connected by movable blocks; the port deck and the starboard deck are respectively connected to the first deck layer and the second deck layer by multiple movable blocks; multiple deck sections of the first deck layer are welded, and the first deck layer pillars are welded to the first deck layer.

[0055] Furthermore, after fixing the dimensions of the adjacent i-th deck and i+1-th deck, multiple deck sections of the i-th deck are welded, followed by the welding of the i-th deck pillars. The i-th deck pillars are then welded to the i-th deck, thus avoiding deformation of the i-th deck due to its own welding and pillar welding. Since the i-th and i+1-th decks are installed on the starboard and port decks respectively via movable blocks, the heights of the i-th and i+1-th decks are determined, ensuring the pillars meet verticality requirements and that the upper and lower pillars meet alignment requirements, avoiding the need for cutting corrections. When i = m-1, the port deck and corresponding deck sections are welded sequentially from the top layer towards the first layer, and the starboard deck and corresponding deck sections are welded sequentially. This avoids large welding gaps between the hull side and deck layers, which would result in large heat input and cause deformation of the port and starboard outer plating, affecting the ship's width and increasing the "lean horse phenomenon" of the outer plating.

[0056] In some optional embodiments, after the step of connecting the port deck and the starboard deck to the first deck and the second deck respectively via multiple movable blocks, the method further includes welding multiple deck segments of the first deck and welding the first deck pillars to the first deck.

[0057] Specifically, a workbench is set up with multiple supporting components; multiple deck segments for placing the first deck are set at the ends of the multiple supporting components, and the multiple deck segments are arranged in an array. Any two adjacent deck segments are welded together, and the array of multiple deck segments includes n rows and k columns; any adjacent deck segments of the first deck are connected by multiple movable blocks; a first-level column is placed on the first deck; multiple deck segments of the second deck are set at the ends of the first-level column; any adjacent deck segments of the second deck are connected by... Multiple movable blocks are connected; n port and n starboard sections of the ship are arranged on both sides of the deck layer, with the i-th port section corresponding to the i-th row of deck layers, and the i-th starboard section corresponding to the i-th row of deck layers; the deck layers of adjacent port sections are aligned and connected by movable blocks; the deck layers of adjacent starboard sections are aligned and connected by movable blocks; the port deck and the starboard deck are respectively connected to the first deck layer and the second deck layer by multiple movable blocks; multiple deck sections of the first deck layer are welded, and the first deck layer pillars are welded to the first deck layer.

[0058] Furthermore, after fixing the dimensions of the adjacent i-th deck and i+1-th deck, multiple deck sections of the i-th deck are welded, followed by the welding of the i-th deck pillars. The i-th deck pillars are then welded to the i-th deck, thus avoiding deformation of the i-th deck due to its own welding and pillar welding. Since the i-th and i+1-th decks are installed on the starboard and port decks respectively via movable blocks, the heights of the i-th and i+1-th decks are determined, ensuring the pillars meet verticality requirements and that the upper and lower pillars meet alignment requirements, avoiding the need for cutting corrections. When i = m-1, the port deck and corresponding deck sections are welded sequentially from the top layer towards the first layer, and the starboard deck and corresponding deck sections are welded sequentially. This avoids large welding gaps between the hull side and deck layers, which would result in large heat input and cause deformation of the port and starboard outer plating, affecting the ship's width and increasing the "lean horse phenomenon" of the outer plating.

[0059] In this invention, the term "multiple" refers to at least two or more, unless otherwise explicitly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0060] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0061] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A welding process for a vehicle transport vessel, characterized in that, It includes at least the following steps: Lay the first and second decks; Install the port and starboard sides on both sides of the deck level; Place the i-th layer pillar on the i-th layer deck, where i is greater than or equal to 2; Multiple deck segments of the (i+1)th deck are provided at the ends of the i-th layer columns; Connect any adjacent deck segments of the (i+1)th deck by multiple movable blocks; Connect the (i+1)th deck to the port deck via movable blocks, and connect the (i+1)th deck to the starboard deck via movable blocks. Weld multiple deck segments of the i-th deck, and weld the i-th deck column to the i-th deck; After the multiple deck sections of the top deck are welded, the port deck and the corresponding deck sections are welded sequentially from the top deck toward the first deck, and the starboard deck and the corresponding deck sections are welded sequentially.

2. The welding process for vehicle transport vessels according to claim 1, characterized in that, The steps prior to laying the first deck include, Multiple support components are set on the worktable; Multiple deck segments of the first deck are provided at the ends of the multiple supporting components. The multiple deck segments are arranged in an array. Any two adjacent deck segments are welded together. The multiple deck segments arranged in an array include n rows and k columns. The first deck is connected by a plurality of movable blocks, which are any adjacent deck segments.

3. The welding process for vehicle transport vessels according to claim 2, characterized in that, The multiple support components are arranged in a matrix, and the levelness of the surface of each support component in contact with the first deck is within a preset error range.

4. The welding process for vehicle transport vessels according to claim 3, characterized in that, The error range is between -4mm and +4mm.

5. The welding process for vehicle transport vessels according to claim 1, characterized in that, The step of laying the second deck includes... The first-level pillars are placed on the first-level deck; Multiple deck sections of the second deck are provided at the ends of the first-level columns; The second deck is connected by a plurality of movable blocks, where any adjacent deck segments are connected.

6. The welding process for vehicle transport vessels according to claim 5, characterized in that, The steps of installing the port and starboard sides onto both sides of the deck layer include, The n port and n starboard sides of the ship are arranged on both sides of the deck layer, with the i-th port side corresponding to the i-th row of the deck layer, and the i-th starboard side corresponding to the i-th row of the deck layer.

7. The welding process for vehicle transport vessels according to claim 6, characterized in that, The steps of installing the port and starboard sides on both sides of the deck layer also include... The decks on the adjacent port side are aligned and connected by movable blocks; the decks on the adjacent starboard side are aligned and connected by movable blocks.

8. The welding process for vehicle transport vessels according to claim 7, characterized in that, After the steps of corresponding and connecting the adjacent decks on the port side and the adjacent decks on the starboard side via movable blocks, the method further includes: The port deck and the starboard deck are respectively connected to the first deck and the second deck via multiple movable blocks.

9. The welding process for vehicle transport vessels according to claim 8, characterized in that, Following the step of connecting the port deck and the starboard deck to the first deck and the second deck respectively via multiple movable blocks, the method further includes: Weld multiple deck sections of the first deck and weld the first deck columns to the first deck.

10. The welding process for vehicle transport vessels according to claim 1, characterized in that, The flatness of each deck layer is between 4mm and +4mm.

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