A tooling and method for splicing marine steel plates

Abstract

This invention discloses a splicing fixture and method for marine steel plates. The splicing fixture includes a first mating component and a second mating component. The first mating component includes a first support plate and two pressure plates. The two pressure plates are perpendicular to the first support plate and can rotate to be parallel to the first support plate for folding at one end of the first support plate. When folded, the maximum thickness of the first mating component is less than the width of the joint between the two steel plates. A control mechanism is provided on the first support plate to drive the pressure plates to rotate. The pressure plate component includes a second support plate, which is detachably connected to the first support plate. A screw is screwed onto the second support plate, and the screw can be screwed to press against the steel plate. This invention uses rotatable pressure plates that can be unfolded or folded. When folded, the pressure plates can pass through the joint for installation. After installation, the pressure plates can be unfolded to engage with the screw and press against the first side of the steel plate, thereby leveling the two steel plates and completing the splicing. The operation is convenient and the splicing efficiency is high.

Description

Technical Field

[0001] This invention relates to the field of shipbuilding, and in particular to a tooling for splicing marine steel plates and a splicing method thereof. Background Technology

[0002] During shipbuilding, large flat plates such as the hull bottom plate, decks, platform plates, longitudinal and transverse bulkheads, conning towers, and straight outer plates all need to be pre-assembled before welding. When assembling and welding the plates, tack welding is first performed at the welding points to secure them before the entire weld seam can be welded. However, misalignment can easily occur between the plates during assembly, which can affect the quality of the weld.

[0003] In existing technologies, to align plates and ensure the quality of welded joints, a mortise and tenon joint is typically used. This mortise and tenon joint is a tooling used to ensure a smooth weld seam when welding ship plates or large steel plates. However, existing technologies have the following drawbacks: after spot welding the seam between two adjacent plates, the mortise and tenon joint needs to be cut off, and the cutting process requires grinding to make it smooth. This affects the efficiency of the welded joint, and cutting deviations can damage the plates. Summary of the Invention

[0004] One objective of this invention is to provide a tooling for splicing marine plates, which has a simple structure and can ensure the quality of plate welding and improve the efficiency of plate splicing.

[0005] Another objective of this invention is to provide a splicing method for marine plate splicing fixtures, which is simple to operate, easy to install, and can improve the efficiency of plate welding.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Firstly, a tooling for splicing marine steel plates is provided, comprising:

[0008] The first mating assembly includes a first support plate and two pressure plates. The two pressure plates are vertically disposed on the same end of the first support plate. The two pressure plates are respectively used to adhere to the first side surfaces of the two plates. Both pressure plates can be rotated to be parallel to the first support plate so as to fold at one end of the first support plate. When folded, the maximum thickness of the first mating assembly is less than the joint width between the two plates. The first support plate is provided with a control mechanism for driving the pressure plates to rotate.

[0009] The second mating component, the pressure plate component includes a second support plate, the second support plate being vertically connected to the first support plate, and a screw being screwed onto the second support plate, the screw being able to be screwed and pressed against the second side of the plate.

[0010] As a preferred embodiment of the marine plate splicing fixture, each of the pressure plates is connected to a control mechanism. The control mechanism includes a first rotating shaft, a second rotating shaft, and a transmission belt. One end face of the first support plate is recessed with a mounting groove. The first rotating shaft is rotatably disposed in the mounting groove. The second rotating shaft is rotatably disposed on the side of the through groove opposite to the mounting groove. The transmission belt connects the first rotating shaft and the second rotating shaft respectively. The second rotating shaft is connected to the end of the pressure plate. The rotation of the first rotating shaft can drive the second rotating shaft to rotate and drive the pressure plate to rotate.

[0011] As a preferred embodiment of the splicing tooling for marine plates, two first rotating shafts are arranged opposite to each other and spaced apart in the mounting groove. Each of the opposite ends of the two rotating shafts is provided with a first bevel gear. A second bevel gear is rotatably arranged in the mounting groove. The second bevel gear meshes with the two first bevel gears respectively. The rotation of the second bevel gear can drive the two first bevel gears to rotate in opposite directions, so that the two pressure plates rotate opposite to each other or in opposite directions.

[0012] As a preferred embodiment of the splicing tooling for marine plates, the second bevel gear is rotatably connected in the mounting groove via a third rotating shaft. The third rotating shaft is provided with a first elastic element, which can drive the third rotating shaft to rotate, thereby driving the second bevel gear to rotate, so that the two pressure plates have a tendency to maintain a motion in the unfolded state.

[0013] As a preferred embodiment of a marine plate splicing tooling, one end of the third rotating shaft is located outside the first support plate and is provided with a turntable, the rotation of which can drive the third rotating shaft to rotate.

[0014] As a preferred embodiment of a marine plate splicing fixture, the control mechanism includes a mounting base, with the ends of the two pressure plates rotatably disposed at opposite ends of the mounting base. An adjusting component is movably disposed on the first support plate, and a pull rod is rotatably connected between the adjusting component and the mounting base. A connecting rod is rotatably connected to the side of the pressure plate, and the end of the connecting rod away from the pressure plate is rotatably connected to the first support plate. The adjusting component can pull the mounting base to move via the pull rod, and drive the two pressure plates to rotate relative to or opposite to each of the connecting rods.

[0015] As a preferred embodiment of the splicing tooling for marine plates, the adjusting component is a handle, which is rotatably connected to the first support plate, and the handle can rotate to pull the lever.

[0016] As a preferred embodiment of a marine plate splicing tool, a second elastic element is connected to the handle. The second elastic element can drive the handle to rotate so that the pressure plate has a tendency to remain in the unfolded state.

[0017] As a preferred solution for splicing marine plates, one end of the screw is provided with a protective gasket, which is used to fit against the second side.

[0018] Secondly, a method for splicing marine steel plates is provided, which uses the aforementioned marine steel plate splicing fixtures for assembly. The splicing method includes the following steps:

[0019] Step S100: Pre-join the two plates to form a weld seam between them;

[0020] Step S200: Rotate the pressure plate of the first mating component to fold the two pressure plates over one end of the first support plate of the first mating component, so that the maximum thickness of the first mating component is less than the joint width between the two plates.

[0021] Step S300: Insert the first mating component into the seam between the two plates, so that the first support plate is located on one side of the plates and the pressure plate is located on the other side of the plates;

[0022] Step S400: Rotate the two pressure plates in opposite directions to unfold them and keep them flush.

[0023] Step S500: Connect the second support plate of the second mating component to the first support plate, so that the two ends of the second support plate are respectively facing the second side of the two plates;

[0024] Step 600: Tighten the screws of the second mating component to both ends of the second support plate and press them against the second side, so that the two pressure plates are respectively pressed against the two first side to level the two plates.

[0025] The beneficial effects of this invention are as follows: The pressure plates can rotate to a first position and a second position. When the pressure plates are in the first position, the two pressure plates are flush and perpendicular to the first support plate. At this time, the two pressure plates are in an unfolded state, and the second support plate is perpendicularly connected to the first support plate to form an "I" shaped structure. When the pressure plates are in the second position, the two pressure plates are completely overlapped and parallel to the first support plate. At this time, the two pressure plates are in a folded state, and the second support plate is perpendicularly connected to the first support plate to form a "T" shaped structure. When splicing the plates, the two pressure plates can first be rotated to the second position to form a "T" shaped structure. Since the maximum thickness of the first mating component is less than the joint width between the two plates in this state, the pressure plate can be passed through the joint between the two plates on one side to place the pressure plate on the other side of the two plates. Then, the two pressure plates are rotated and adjusted to the first position to form an "I" shaped structure. At this time, the screws located at both ends of the second support plate are screwed in to make the screws press against the second side of the two plates. Under the locking force of the screws, the two misaligned plates can be flattened, thereby improving the quality of the splicing and welding.

[0026] Compared to existing technologies that use sheet metal, this method saves time on sheet metal cutting, grinding, and welding, thus improving splicing efficiency. Moreover, by using a folded and threaded pressure plate, the splicing fixture can be installed from one side of the sheet metal, eliminating the need to slide and insert it from the end of the seam each time to install the splicing fixture, or to clamp the first and second mating components on both sides of the sheet metal to assemble the splicing fixture. Therefore, this method simplifies the installation operation for splicing and helps to further improve splicing efficiency. Attached Figure Description

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0028] Figure 1 This is a schematic diagram of the marine plate splicing tooling described in an embodiment of the present invention.

[0029] Figure 2 This is a first sectional view of the marine plate splicing tooling according to an embodiment of the present invention.

[0030] Figure 3 This is a second sectional view of the marine plate splicing fixture folding according to an embodiment of the present invention.

[0031] Figure 4 This is a third sectional view of the marine plate splicing tooling as described in an embodiment of the present invention when unfolded.

[0032] Figure 5 This is a schematic diagram of the structure of the marine plate splicing tooling during folding according to another embodiment of the present invention.

[0033] Figure 6This is a schematic diagram of the structure of the marine plate splicing tooling when unfolded according to another embodiment of the present invention.

[0034] In the picture:

[0035] 10. Sheet metal; 101. First side; 102. Second side;

[0036] 1. First mating assembly; 11. First support plate; 111. Mounting groove; 112. Insertion hole; 12. Pressure plate; 2. Second mating assembly; 21. Second support plate; 22. Screw; 3. Control mechanism; 301. First rotating shaft; 302. Second rotating shaft; 303. Transmission belt; 304. First bevel gear; 305. Second bevel gear; 306. Third rotating shaft; 311. Mounting base; 312. Handle; 313. Pull rod; 314. Connecting rod; 4. Protective gasket. Detailed Implementation

[0037] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0039] like Figure 1As shown, the present invention provides a marine plate splicing fixture, comprising a first mating component 1 and a second mating component 2. The first mating component 1 includes a first support plate 11 and two pressure plates 12. The two pressure plates 12 are vertically disposed on the same end of the first support plate 11 and are flush. The two pressure plates 12 are used to respectively adhere to the first side surface 101 of two plates 10. The thickness of both the pressure plates 12 and the first support plate 11 is less than the joint width between the two plates 10. The two pressure plates 12 are rotatably connected to the first support plate 11. Both pressure plates 12 can rotate to be parallel to the first support plate 11, so as to fold at one end of the first support plate 11. The maximum thickness of the first mating component 1 after folding is less than the joint width between the two plates 10. A control mechanism 3 is provided on the first support plate 11, which is used to drive the pressure plate 12 to rotate. The pressure plate 12 assembly includes a second support plate 21, which is vertically connected to the first support plate 11. A screw 22 is screwed onto the second support plate 21, which can be screwed to abut against the second side 102 of the plate 10.

[0040] Understandably, the pressure plate 12 can rotate to the first position and the second position. When the pressure plate 12 is in the first position, the two pressure plates 12 are parallel and perpendicular to the first support plate 11. At this time, the two pressure plates 12 are in the unfolded state, and the second support plate 21 is perpendicularly connected to the first support plate 11 to form an "I" shaped structure. When the pressure plate 12 is in the second position, the two pressure plates 12 are completely overlapped and parallel to the first support plate 11. At this time, the two pressure plates 12 are in the folded state, and the second support plate 21 is perpendicularly connected to the first support plate 11 to form a "T" shaped structure. When splicing the plates 10, the two pressure plates 12 can be rotated to the second position to form a "T" shaped structure. Since the maximum thickness of the first mating component 1 is less than the joint width between the two plates 10 in this state, the pressure plate 12 can be passed through the joint between the two plates 10 on one side of the two plates 10 so that the pressure plate 12 is located on the other side of the two plates 10. Then, the two pressure plates 12 are rotated and adjusted to the first position to form an "I" shaped structure. At this time, the screws 22 located at both ends of the second support plate 21 are screwed to make the screws 22 press against the second side 102 of the two plates 10. Under the locking force of the screws 22, the two misaligned plates 10 can be flattened, thereby improving the quality of the splicing and welding.

[0041] Therefore, the marine plate splicing fixture of the present invention can complete the installation of the splicing fixture on one side of the plate 10 by folding and inserting the pressure plate 12. Compared with the prior art using the method of using a mortise and tenon joint, it can save the time of cutting, grinding and welding the mortise and tenon joint, thereby improving the splicing efficiency. Moreover, the marine plate splicing fixture does not need to slide through the end of the splice each time to complete the assembly, or two people can hold the first mating component 1 and the second mating component 2 on both sides of the plate 10 to complete the assembly. This helps to simplify the installation operation of the splicing efficiency and makes disassembly and assembly convenient.

[0042] It should be noted that the weld width during the splicing of plate 10 is approximately 300mm to 600mm, meaning the joint width between two plates 10 is also approximately 300mm to 600mm. Therefore, the maximum thickness of the first mating component 1 during folding must meet this joint width to ensure that the pressure plate 12 can pass through the joint. Consequently, the overall size of the marine plate splicing fixture will be relatively small. To ensure the splicing effect, multiple marine plate splicing fixtures can be installed at intervals along the length of the joint. These fixtures work together to ensure that the two plates 10 are completely aligned.

[0043] Optionally, the first support plate 11 and the second support plate 21 are detachably connected for easy assembly, disassembly, and storage. For example, as shown... Figures 1 to 6 As shown, a hole 112 is provided through the first support plate 11 near the top, and a second support plate 21 is inserted into the hole 112 so that the opposite ends of the second support plate 21 are respectively positioned on both sides of the first support plate 11, so that the opposite ends of the second support plate 21 can respectively abut against the second side surface 102 of the two plates 10, so as to prevent the periphery of the abutting end of the screw 22 from scratching the second side surface 102.

[0044] Preferably, such as Figure 1 As shown, a protective gasket 4 is provided at one end of the screw 22. The protective gasket 4 is used to fit against the second side 102. The screw 22 can be pressed against the second side 102 of the plate 10 through the protective gasket 4 to avoid the screw 22 directly pressing against the second side 102 and damaging the second side 102.

[0045] Optionally, the protective pad 4 can be made of hard rubber or silicone.

[0046] In one embodiment, such as Figures 2 to 4 As shown, each pressure plate 12 is connected to a control mechanism 3. The control mechanism 3 includes a first rotating shaft 301, a second rotating shaft 302, and a transmission belt 303. One end face of the first support plate 11 has a recessed mounting groove 111. The first rotating shaft 301 is rotatably mounted in the mounting groove 111, and the second rotating shaft 302 is rotatably mounted at the opening of the mounting groove 111. The transmission belt 303 passes through the mounting groove 111 and the through groove to connect the first rotating shaft 301 and the second rotating shaft 302. The second rotating shaft 302 is connected to the end of the pressure plate 12. Rotation of the first rotating shaft 301 can drive the second rotating shaft 302 to rotate, thereby driving the pressure plate 12 to rotate. With this design, the rotation of the first rotating shaft 301 in the first support plate 11 on one side of the plate 10 can control the rotation of the pressure plate 12 located on the other side of the plate 10, thereby controlling the pressure plate 12 to switch between a first position and a second position.

[0047] Furthermore, such as Figure 2As shown, two first rotating shafts 301 are arranged opposite to each other and spaced apart in the mounting groove 111. Each of the opposite ends of the two rotating shafts is provided with a first bevel gear 304. A second bevel gear 305 is rotatably disposed in the mounting groove 111, meshing with each of the two first bevel gears 304. For example, a third rotating shaft 306 is provided in the mounting groove 111. The second bevel gear 305 is rotatably connected to the mounting groove 111 via the third rotating shaft 306. An opening is provided through the groove wall of the mounting groove 111. The end of the third rotating shaft 306 away from the second bevel gear 305 extends through the opening to the outside of the first support plate 11 and forms a driving part. The driving part can drive the third rotating shaft 306 to rotate, which in turn drives the second bevel gear 305 to rotate synchronously, thereby causing the first bevel gears 304 on the two first devices to rotate in opposite directions, thus enabling the two pressure plates 12 to rotate in opposite directions. Therefore, the two pressure plates 12 can be rotated from the second position to the first position to fold up, or rotated from the first position to the second position to unfold, making operation convenient.

[0048] Furthermore, the third rotating shaft 306 is provided with a first elastic element (not shown in the figure). For example, the first elastic element is a torsion spring. The first elastic element can drive the third rotating shaft 306 to rotate, thereby driving the second bevel gear 305 to rotate, so that the first rotating shaft 301 and the second rotating shaft 302 rotate synchronously, thereby giving the two pressure plates 12 a tendency to maintain their movement in the second position, so as to ensure that the two pressure plates 12 can remain flush and adhere tightly to the first side 101 of the two plates 10.

[0049] Optionally, the drive unit of the third rotating shaft 306 is provided with a turntable. By rotating the turntable, the elastic force of the first elastic element can be overcome to directly drive the third rotating shaft 306 to rotate, thereby facilitating the rotation of the third rotating shaft 306.

[0050] In another embodiment, such as Figure 5 and Figure 6 As shown, a control mechanism 3 is provided, and an adjustment mechanism includes a mounting base 311. The ends of two pressure plates 12 are rotatably mounted on opposite ends of the mounting base 311. An adjusting member is movably mounted on the first support plate 11. A pull rod 313 is rotatably connected between the adjusting member and the mounting base 311. A connecting rod 314 is rotatably connected to the side of the pressure plates 12. The end of the connecting rod 314 away from the pressure plates 12 is rotatably connected to the first support plate 11. The adjusting member can pull the mounting base 311 to move via the pull rod 313, and drive the two pressure plates 12 to rotate synchronously around the connecting rods 314 to the first position or the second position. This design, through the connecting rod 314 mechanism, allows the two pressure plates 12 to rotate from the second position relative to each other to the first position to fold up, or from the first position opposite to each other to the second position to unfold, making operation convenient.

[0051] Optionally, for ease of operation, the adjusting component is a handle 312, which is rotatably connected to the first support plate 11. The handle 312 can rotate relative to the first support plate 11 to pull the pull rod 313. When the handle 312 rotates upward relative to the first support plate 11, the two pressure plates 12 can be folded. When the handle 312 rotates downward relative to the first support plate 11, the two pressure plates 12 can be unfolded.

[0052] Specifically, a second elastic element (not shown in the figure) is connected to the handle 312. For example, the second elastic element is a torsion spring. The second elastic element can drive the handle 312 to rotate downward relative to the first support plate 11 so that the pressure plate 12 has a tendency to remain in the second position, so that the two pressure plates 12 are kept in the unfolded state, and the two pressure plates 12 can remain flush with each other to adhere to the first side 101 of the two plates 10.

[0053] This invention also provides a method for splicing marine steel plates, using the marine steel plate splicing fixtures described in any of the above embodiments. Specifically, refer to... Figures 1 to 6 The splicing method includes the following steps:

[0054] Step S100: Pre-join the two plates 10 to form a joint between the two plates 10 that is to be welded.

[0055] Step S200: Rotate the pressure plate 12 of the first mating component 1 to fold the two pressure plates 12 to one end of the first support plate 11 of the first mating component 1, so that the maximum thickness of the first mating component is less than the joint width between the two plates 10.

[0056] Step S300: On one side of the plate 10, the first mating component 1 is inserted into the seam between the two plates 10, so that part of the first support plate 11 is located on the other side of the plate 10 and the pressure plate 12 is located on the other side of the plate 10.

[0057] Step S400: Rotate the two pressure plates 12 in opposite directions to unfold them and keep them flush.

[0058] Step S500: Connect the second support plate 21 of the second mating component 2 to the first support plate 11, so that the two ends of the second support plate 21 are respectively facing the second side surface 102 of the two plates 10.

[0059] Step 600: Tighten the screws 22 of the second mating component 2 to both ends of the second support plate 21 and press them against the second side 102, so that the two pressure plates 12 are pressed against the two first side 101 respectively to level the two plates 10 and complete the splicing of the marine plate 10.

[0060] Using the above method, marine plate splicing fixtures can be installed on one side of plate 10 to complete the splicing of plate 10. This eliminates the need to slide the fixture through the seam each time to complete assembly, or for two people to hold the first mating component 1 and the second mating component 2 on both sides of plate 10 to complete the assembly. This simplifies the splicing process and improves efficiency, making assembly and disassembly easier. Furthermore, compared to the existing method using prefabricated plates, it saves time on cutting, grinding, and welding prefabricated plates, thereby improving splicing efficiency.

[0061] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings, and are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0062] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0063] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0064] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of the invention and should not be construed as limiting the scope of protection of the invention in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of the invention without inventive effort, and these embodiments will all fall within the scope of protection of the present invention.

Claims

1. A tooling for splicing marine steel plates, characterized in that, include: The first mating assembly includes a first support plate and two pressure plates. The two pressure plates are vertically disposed on the same end of the first support plate. The two pressure plates are respectively used to adhere to the first side surfaces of the two plates. Both pressure plates can be rotated to be parallel to the first support plate so as to fold at one end of the first support plate. When folded, the maximum thickness of the first mating assembly is less than the joint width between the two plates. The first support plate is provided with a control mechanism for driving the pressure plates to rotate. The second fitting component includes a second support plate, which is vertically connected to the first support plate. A screw is screwed onto the second support plate, and the screw can be screwed to press against the second side of the plate, so that the two pressure plates are respectively pressed against the two first sides to level the two plates. The first support plate has a through hole near the top, and the second support plate passes through the through hole so that the opposite ends of the second support plate are located on both sides of the first support plate. By folding and inserting the pressure plate, the splicing fixture can be installed on one side of the plate, without having to slide and insert it from the end of the seam each time to install the splicing fixture, or clamp the first mating component and the second mating component on both sides of the plate to assemble and install the splicing fixture.

2. The marine plate splicing tooling according to claim 1, characterized in that, Each of the pressure plates is connected to a control mechanism, which includes a first rotating shaft, a second rotating shaft, and a transmission belt. One end face of the first support plate is recessed with a mounting groove. The first rotating shaft is rotatably disposed in the mounting groove, and the second rotating shaft is rotatably disposed at the opening of the mounting groove. The transmission belt connects the first rotating shaft and the second rotating shaft respectively. The second rotating shaft is connected to the end of the pressure plate. Rotation of the first rotating shaft can drive the second rotating shaft to rotate and drive the pressure plate to rotate.

3. The marine plate splicing tooling according to claim 2, characterized in that, Two first rotating shafts are arranged opposite each other and spaced apart in the mounting groove. Each of the opposite ends of the two rotating shafts is provided with a first bevel gear. A second bevel gear is rotatably arranged in the mounting groove. The second bevel gear meshes with the two first bevel gears respectively. The rotation of the second bevel gear can drive the two first bevel gears to rotate in opposite directions, so that the two pressure plates rotate opposite each other or in opposite directions.

4. The marine plate splicing tooling according to claim 3, characterized in that, The second bevel gear is rotatably connected in the mounting groove via a third rotating shaft. The third rotating shaft is provided with a first elastic element, which can drive the third rotating shaft to rotate, thereby driving the second bevel gear to rotate, so that the two pressure plates have a tendency to remain in the unfolded state.

5. The marine plate splicing tooling according to claim 4, characterized in that, One end of the third rotating shaft is located outside the first support plate and is provided with a turntable. The rotation of the turntable can drive the third rotating shaft to rotate.

6. The marine plate splicing tooling according to claim 1, characterized in that, The control mechanism includes a mounting base, with the ends of the two pressure plates rotatably disposed at opposite ends of the mounting base. An adjusting member is movably disposed on the first support plate, and a pull rod is rotatably connected between the adjusting member and the mounting base. A connecting rod is rotatably connected to the side of the pressure plate, and the end of the connecting rod away from the pressure plate is rotatably connected to the first support plate. The adjusting member can pull the mounting base to move through the pull rod, and drive the two pressure plates to rotate relative to or opposite to each other around the connecting rods.

7. The marine plate splicing tooling according to claim 6, characterized in that, The adjusting component is a handle, which is rotatably connected to the first support plate, and the handle can rotate to pull the lever.

8. The marine plate splicing tooling according to claim 7, characterized in that, A second elastic element is connected to the handle, which can drive the handle to rotate so that the pressure plate has a tendency to remain in the unfolded state.

9. The marine plate splicing tooling according to any one of claims 1 to 8, characterized in that, One end of the screw is provided with a protective gasket, which is used to fit against the second side.

10. A method for splicing marine steel plates, characterized in that, The splicing is performed using the marine plate splicing fixture according to any one of claims 1 to 9, and the splicing method includes the following steps: Step S100: Pre-join the two plates to form a weld seam between them; Step S200: Rotate the pressure plate of the first mating component to fold the two pressure plates over one end of the first support plate of the first mating component, so that the maximum thickness of the first mating component is less than the joint width between the two plates. Step S300: Insert the first mating component into the seam between the two plates, such that part of the first support plate is located on one side of the plates and the pressure plate is located on the other side of the plates; Step S400: Rotate the two pressure plates in opposite directions to unfold them and keep them flush. Step S500: Connect the second support plate of the second mating component to the first support plate, so that the two ends of the second support plate are respectively facing the second side of the two plates; Step 600: Tighten the screws of the second mating component to both ends of the second support plate and press them against the second side, so that the two pressure plates are respectively pressed against the two first side to level the two plates.

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