Ship welding method and ship

Abstract

The invention relates to the field of ship manufacturing, in particular to a ship welding method and a ship. According to the ship welding method provided by the invention, compared with a traditional ship building process, a large number of external force input tools such as weights and braces are not adopted any more so as to ensure that the plates are kept stable during welding, and a more simplified tool and a traction structure are adopted as a mode for keeping the plates stable; therefore, the process complexity is reduced, the production efficiency is improved, plate surface damage possibly caused by an external force tool is reduced, the situation of hard assembly of the plate in the machining process is reduced, and the production efficiency is further improved.

Description

Technical Field

[0001] The present application relates to the technical field of shipbuilding, and in particular to a ship welding method and a ship. Background Art

[0002] In traditional shipbuilding processes, a large number of external force input tools, such as pressure irons and pull rods, are usually used in the production process of thin plate workshops to ensure that the plates remain stable during welding and prevent deformation. Although this method can guarantee the quality of welding to a certain extent, it has the following problems: First, the use of these tools increases the complexity of the process and affects production efficiency; second, the use of external force tools may cause damage to the surface of the plate, affecting its appearance and service life; third, the plate is prone to hard assembly during processing, further reducing production efficiency. Summary of the invention

[0003] In view of this, the present application provides a ship welding method and a ship, the purpose of which is to solve the above technical problems to a certain extent.

[0004] According to a first aspect of an embodiment of the present application, a ship welding method is provided, wherein the ship comprises a mainboard, the mainboard having a strong rib structure, and the ship welding method comprises:

[0005] Placing the main board on the tire frame, and making the edge of the main board exceed the tire frame;

[0006] A tooling and a pulling structure are provided, wherein the tooling comprises a fixing portion, wherein the fixing portion is detachably connected to the edge of the strong rib structure of the main board, the tooling is connected to the pulling structure, and the pulling structure is detachably connected to the support leg of the tire frame.

[0007] On the basis of the above technical solution, preferably, the ship welding method further comprises:

[0008] Setting a flatness constraint tool on the edge of the mainboard;

[0009] Wherein, the flatness constraining tool comprises a connecting member and a plurality of clamping members, the connecting member sequentially connects the plurality of clamping members, and each of the clamping members clamps the edge of the main board from both sides of the main board.

[0010] On the basis of any of the above technical solutions, preferably, the ship welding method further comprises:

[0011] A supporting tool is provided at the bottom of the mainboard, and the supporting tool is configured to apply force to the mainboard to adjust the horizontality of the mainboard.

[0012] On the basis of any of the above technical solutions, preferably, the ship welding method further comprises:

[0013] Carry out pre-welding inspection on the parts to be welded. When the gap of the fillet weld is larger than 2mm, perform base welding on the gap of the fillet weld.

[0014] On the basis of any of the above technical solutions, preferably, the ship welding method further comprises:

[0015] The butt weld shall be inspected before welding. When the width of the weld surface is greater than or equal to 12mm, the weld shall be welded in multiple layers and passes.

[0016] On the basis of any of the above technical solutions, preferably, the ship welding method further comprises:

[0017] When the fillet weld is less than or equal to 6mm, single-pass welding is performed; when the fillet weld is greater than 6mm, multi-layer and multi-pass welding is performed.

[0018] On the basis of any of the above technical solutions, preferably, the ship welding method further comprises:

[0019] A 6mm carbon rod is used for carbon planing on the reverse side of full-penetration and deep-penetration welds to reduce the groove angle.

[0020] On the basis of any of the above technical solutions, preferably, the ship welding method further comprises:

[0021] Set up angle ruler lines and deck pre-welding lines on the paneling platform in advance to serve as paneling benchmarks;

[0022] When hoisting the plates, assemble them along the edge of the overall assembly first, ensure that the reference edge and the ground line are completely aligned, and confirm the distance between the hole structure and the plate edge;

[0023] Fix the two ends of the plate butt weld by positioning welding, and after the deck shape is stretched to completely match the ground line, perform positioning welding in the middle of the plate seam;

[0024] After assembly, confirm again whether the deck shape matches the ground wire, and then proceed with the welding of the panel seams.

[0025] On the basis of any of the above technical solutions, preferably, the ship welding method further comprises:

[0026] Lay all deck plates on the tire frame, and select the edge of the total assembly as the reference, and draw a straightness auxiliary line 150mm inward from the end of the weld to control the straightness of the closing mouth;

[0027] The plate seams are first fixed by tack welding at both ends, and the straightness is checked against the auxiliary lines, and the angle ruler lines are opened, and then the main dimensions of the deck are confirmed through the longitudinal and transverse reference lines;

[0028] After confirming again that the main dimensions are consistent with the actual panel dimensions, proceed with panel welding.

[0029] According to a second aspect of an embodiment of the present application, a ship is provided, wherein the ship is welded by the ship welding method as described above.

[0030] According to the ship welding method provided by the present application, compared with the traditional shipbuilding process, external force input tools such as weights and pull rods are no longer used in large quantities to ensure that the plate remains stable during welding. Instead, a simpler tooling and pulling structure are used as a way to keep the plate stable. This reduces the complexity of the process and improves production efficiency, reduces the surface damage of the plate that may be caused by external force tools, and reduces the hard assembly of the plate during the processing process, further improving production efficiency.

[0031] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 A schematic diagram of a flow chart of a ship welding method provided according to an embodiment of the present application is shown;

[0034] Figure 2 A schematic diagram showing a first example of a non-rectangular deck paneling step of a ship welding method provided in an embodiment of the present application;

[0035] Figure 3 A schematic diagram showing the supplementary principle of the first example of the non-rectangular deck paneling step of the ship welding method provided in an embodiment of the present application

[0036] Figure 4 A schematic diagram showing a schematic diagram of a second example of a non-rectangular deck panelization step of a ship welding method provided in an embodiment of the present application. DETAILED DESCRIPTION

[0037] The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0038] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0039] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0040] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0041] According to the ship welding method provided in the first aspect of the embodiment of the present application, the steps and execution process of the ship welding method will be described in detail below with reference to the accompanying drawings.

[0042] According to a ship welding method provided in an embodiment of the present application, the ship includes a mainboard, the mainboard has a strong rib structure, and the ship welding method includes:

[0043] Place the mainboard on top of the tire frame, and make the edge of the mainboard extend beyond the tire frame;

[0044] A tooling and a pulling structure are provided, wherein the tooling comprises a fixing part, the fixing part is detachably connected to the edge of the strong rib structure of the main board, the tooling is connected to the pulling structure, and the pulling structure is detachably connected to the support legs of the tire frame.

[0045] Thus, according to the ship welding method provided in the embodiment of the present application, compared with the traditional shipbuilding process, a large number of external force input tools such as weights and pull rods are no longer used to ensure that the plate remains stable during welding. Instead, a simpler tooling and pulling structure are used as a way to keep the plate stable. This reduces the complexity of the process and improves production efficiency, reduces the surface damage of the plate that may be caused by external force tools, and reduces the hard assembly of the plate during the processing process, further improving production efficiency.

[0046] In an embodiment, as an example, the fixing portion of the tooling can be a hook, so that the tooling can be, for example, in an S-shape or a 5-shape, for example, in a 5-shape, the hook at the upper end is a flat groove, so that it can be less closely attached to the main board. In an embodiment, the hook at the lower end can be used to connect the traction structure to the boundary. In addition, the tooling can also be, for example, a callan.

[0047] In an embodiment, the pulling structure may be, for example, a ratchet pull rod, a turnbuckle or a hand winch, etc. In an embodiment, since the edge of the main board exceeds the tire frame, the pulling structure starts from the tooling and ends at the support leg of the tire frame, so that the pulling structure, the support leg and the main board form a triangular structure, making the main board more stable.

[0048] In an embodiment, a plurality of ribs are welded on the main board, and the strong rib structures are structures near the ribs. The rigidity near these structures is higher, so tooling and pulling structures are arranged at the edges near these structures to ensure that the main board does not deform significantly as little as possible, thereby fixing the main board while ensuring that the flatness of the main board is not affected by the tooling and pulling structures.

[0049] In an embodiment, fixing the main board on the tire frame as above can be performed after the secondary scribing of the main board is completed.

[0050] According to the ship welding method provided in the embodiment of the present application, the ship welding method further includes:

[0051] Setting a flatness constraint tool on the edge of the mainboard;

[0052] The flatness constraint tooling includes a connecting member and a plurality of clamping members, the connecting member sequentially connects the plurality of clamping members, and each clamping member clamps the edge of the main board from both sides of the main board.

[0053] In this way, according to the ship welding method provided in the embodiment of the present application, a distance can be spanned along the edge of the main board through the connecting components, each clamping component is fixed to the edge of the main board by clamping, and the connecting components sequentially connect these clamping components so that the heights of these clamping components can be kept basically consistent when the connecting components have sufficient rigidity, thereby ensuring that the heights of the edges at different positions are basically consistent, thereby ensuring the flatness of the main board.

[0054] In an embodiment, the connecting member can be, for example, a plate, which can be, for example, arranged vertically to provide great rigidity. In an embodiment, the clamping member can be a movable clamping jaw, and two clamping jaws can be close to each other by bolts passing through them and nuts screwed thereon to clamp the plate.

[0055] According to the ship welding method provided in the embodiment of the present application, the ship welding method further includes:

[0056] A top support fixture is provided at the bottom of the mainboard, and the top support fixture is configured to apply force to the mainboard to adjust the horizontality of the mainboard.

[0057] In an embodiment, when the level of the mainboard needs to be adjusted upward, the above-mentioned supporting tooling (such as a supporting plate installed at the end of the jack) can be used in conjunction with the jack for adjustment. When the level reaches the requirement, a mobile frame can be used for support and fixation.

[0058] According to the ship welding method provided in the embodiment of the present application, the ship welding method further includes:

[0059] Check the parts to be welded before welding. When the gap of the fillet weld is larger than 2mm, perform a base weld on the gap of the fillet weld. In this way, avoid large fillet welding to ensure the strength of the weld.

[0060] According to the ship welding method provided in the embodiment of the present application, the ship welding method further includes:

[0061] The butt weld is inspected before welding. When the width of the weld surface is greater than or equal to 12mm, the weld is welded in multiple layers and passes. In this way, large weld angles are also avoided to ensure the strength of the weld.

[0062] According to the ship welding method provided in the embodiment of the present application, the ship welding method further includes:

[0063] When the fillet weld is less than or equal to 6mm, single-pass welding is performed, and when the fillet weld is greater than 6mm, multi-layer and multi-pass welding is performed. In this way, large fillet welding is also avoided to ensure the strength of the welding.

[0064] According to the ship welding method provided in the embodiment of the present application, the ship welding method further includes:

[0065] A 6mm carbon rod is used for carbon planing on the reverse side of the full-melt and deep-melt welds to reduce the groove angle. In addition, there are transition grooves at both ends to avoid large weld angles.

[0066] In addition, in the embodiment, the groove is too large due to cutting, and it is necessary to grow meat at the groove position and then grind it flat before subsequent normal welding can be carried out.

[0067] In the above step of avoiding large fillet welding, the welding method may be, for example, carbon dioxide gas shielded welding.

[0068] According to the ship welding method provided in the embodiment of the present application, for the non-rectangular deck paneling method, the following steps are adopted according to the embodiment of the present application.

[0069] Specifically, in one example, the ship welding method further includes:

[0070] Set up angle ruler lines and deck pre-welding profile lines (including half-width profile edge lines) on the paneling platform in advance to serve as paneling benchmarks;

[0071] When hoisting the plates, assemble them along the edge of the overall assembly (if both the bow and stern are closed, the edge without compensation shall prevail), ensure that the reference edge is completely aligned with the ground line, and confirm the distance between the hole structure (i.e. important structure, such as hatch hole, side structure hole, and light hole structure) and the plate edge;

[0072] During assembly, the two ends of the plate butt welds are fixed by positioning welding. After the deck shape is stretched to completely match the ground line (if there is a plate break, the edge line of the total assembly should be straight), positioning welding is then performed in the middle of the plate seam.

[0073] After assembly, confirm again whether the deck shape matches the ground wire, and then proceed with the welding of the panel seams.

[0074] Specifically, in another example, the ship welding method further includes:

[0075] Lay all deck plates on the cradle, and select the overall combined closing edge as the reference (if both the bow and stern ends are closed, the edge without compensation shall be the priority reference), and draw a straightness matching auxiliary line 150mm inward from the end of the weld to control the straightness of the closing edge;

[0076] The plate seams are first fixed by tack welding at both ends, and the straightness is checked against the auxiliary lines. An angle ruler line is set (as the longitudinal and transverse reference lines), and then the main dimensions of the deck are confirmed through the longitudinal and transverse reference lines (the position of the double-headed arrows in the figure);

[0077] After confirming again that the main dimensions are consistent with the actual panel dimensions, proceed with panel welding.

[0078] In addition, in the embodiment, the ground line size of the deck outer profile should be the size of the deck before assembly welding, which is the theoretical size + dispersed extension + weld shrinkage + segment compensation.

[0079] According to a second aspect of an embodiment of the present application, a ship is provided. The ship is manufactured by the above ship welding method and has the above beneficial effects, which will not be described in detail herein.

[0080] The above are only preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. All equivalent structural changes made by using the contents of the present application specification and drawings under the innovative concept of the present application, or directly / indirectly applied in other related technical fields are included in the protection scope of the present application.

Claims

1. A ship welding method, characterized in that: The ship comprises a main board, the main board has a strong rib structure, and the ship welding method comprises: Placing the main board on the tire frame, and making the edge of the main board exceed the tire frame; A tooling and a pulling structure are provided, wherein the tooling comprises a fixing portion, wherein the fixing portion is detachably connected to the edge of the strong rib structure of the main board, the tooling is connected to the pulling structure, and the pulling structure is detachably connected to the support leg of the tire frame.

2. The ship welding method according to claim 1, characterized in that: The ship welding method also includes: Setting a flatness constraint tool on the edge of the mainboard; Wherein, the flatness constraint tooling comprises a connecting member and a plurality of clamping members, the connecting member sequentially connects the plurality of clamping members, and each of the clamping members clamps the edge of the main board from both sides of the main board.

3. The ship welding method according to claim 1, characterized in that: The ship welding method also includes: A supporting tool is provided at the bottom of the mainboard, and the supporting tool is configured to apply force to the mainboard to adjust the horizontality of the mainboard.

4. The ship welding method according to claim 1, characterized in that: The ship welding method also includes: Carry out pre-welding inspection on the parts to be welded. When the gap of the fillet weld is larger than 2mm, perform base welding on the gap of the fillet weld.

5. The ship welding method according to claim 1, characterized in that: The ship welding method also includes: The butt weld shall be inspected before welding. When the width of the weld surface is greater than or equal to 12mm, the weld shall be welded in multiple layers and passes.

6. The ship welding method according to claim 1, characterized in that: The ship welding method also includes: When the fillet weld is less than or equal to 6mm, single-pass welding is performed; when the fillet weld is greater than 6mm, multi-layer and multi-pass welding is performed.

7. The ship welding method according to claim 1, characterized in that: The ship welding method also includes: A 6mm carbon rod is used for carbon planing on the reverse side of full-penetration and deep-penetration welds to reduce the groove angle.

8. The ship welding method according to claim 1, characterized in that: The ship welding method also includes: Set up angle ruler lines and deck pre-welding lines on the paneling platform in advance to serve as paneling benchmarks; When hoisting the plates, assemble them along the edge of the overall assembly first, ensure that the reference edge and the ground line are completely aligned, and confirm the distance between the hole structure and the plate edge; Fix the two ends of the plate butt weld by positioning welding, and after the deck shape is stretched to completely match the ground line, perform positioning welding in the middle of the plate seam; After assembly, confirm again whether the deck shape matches the ground wire, and then proceed with the welding of the panel seams.

9. The ship welding method according to claim 1, characterized in that: The ship welding method also includes: Lay all deck plates on the tire frame, and select the edge of the total assembly as the reference, and draw a straightness auxiliary line 150mm inward from the end of the weld to control the straightness of the closing mouth; The plate seams are first fixed by tack welding at both ends, and the straightness is checked against the auxiliary lines, and the angle ruler lines are opened, and then the main dimensions of the deck are confirmed through the longitudinal and transverse reference lines; After confirming again that the main dimensions are consistent with the actual panel dimensions, proceed with panel welding.

10. A ship, characterized in that: The ship is welded by the ship welding method according to any one of claims 1 to 9.

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