Vessel component positioning line scribing device and vessel component positioning line scribing method

Abstract

The application belongs to the technical field of ship construction and relates to a ship component positioning line marking device and a ship component positioning marking method. The device comprises a ruler (1), a first sliding assembly (2) and a second sliding assembly (3). The first sliding assembly (2) and the second sliding assembly (3) are movably connected to the ruler (1) respectively. The first sliding assembly (2) comprises a positioning plate (3a), a position adjusting plate (3b) and a sliding seat plate (3c). The second sliding assembly (3) comprises a positioning plate (3a), a position adjusting plate (3b) and a sliding seat plate (3c). A first through groove (5) is arranged on one side of a longitudinal beam connecting component (4), and a second through groove (9) is arranged on the other side of the longitudinal beam connecting component (4). The ship component positioning line marking device can conveniently and quickly complete ship component positioning line marking, reduce the workload, reduce errors and reduce the marking operation strength.

Description

Technical Field

[0001] This invention belongs to the field of shipbuilding technology, and more specifically, it relates to a device for marking positioning lines of ship components. This invention also relates to a method for marking positioning lines of ship components. Background Technology

[0002] Ship structure, also known as hull structure, is a general term for the hull structure composed of plates and a frame. It mainly includes the bottom structure, side structure, deck structure, bulkhead structure, bow and stern structure, and superstructure. The structure varies depending on the purpose of the ship. A ship structure should have sufficient strength, stiffness, stability, and reliability under external forces. Therefore, based on the ship's main dimensions and function, hull frame structures are generally classified into three types: transverse frame, longitudinal frame, and mixed frame. Transverse frame: This type of hull frame has denser transverse skeletons and sparser longitudinal skeletons, resulting in better transverse strength. Longitudinal frame: Conversely, the longitudinal frame has denser longitudinal skeletons and sparser transverse skeletons, resulting in better longitudinal strength. It is generally suitable for large oil tankers and ore carriers. Mixed frame: This is a hull frame form that combines transverse and longitudinal frames, using part transverse frames (such as the side structure) and part longitudinal frames (such as the bottom and deck structure). This design is beneficial to the overall longitudinal strength of the hull and also makes the ship's components more rationally arranged. It is generally used in large and medium-sized oil tankers and cargo ships.

[0003] For liquid or bulk carriers with longitudinal skeletons in the inner and outer shells, inner and outer bottoms, and decks, according to regulations, connecting members (profiles or flat steel, or sometimes enlarged at the ends into crescent-shaped elbows to improve fatigue strength) are installed between the inner and outer bottom longitudinals and the inner and outer shell longitudinals to improve the local strength of the double bottom ribs or side bulkheads.

[0004] The modern shipbuilding industry uniformly adopts a deeply integrated concept of "hull, outfitting, and painting" and "design, production, and management." Shipbuilding production design, starting from the construction perspective, is a design approach that considers high quality, high efficiency, short cycle time, and ensures safety to solve how to build ships and how to rationally organize shipbuilding production. It is a design process that, under the premise of the overall shipbuilding policy, is based on detailed design, and is drawn according to the specific conditions of the shipyard, according to the construction area and unit of the process stage. It incorporates various process technical indicators, instructions, and various management data in the form of work charts and provides production information documents. Currently, except for some inland waterway shipbuilding enterprises, production design adapted to the different levels of detail in their respective shipyards is widely implemented, achieving significant results. Production design has become an important means to improve shipbuilding efficiency and promote the progress of shipbuilding in my country. Within the hull specialty itself, the main hull is divided into three main stages: sectioning, overall assembly, and slipway assembly. Sectioning is further composed of processes such as parts cutting and processing, to small group assembly, medium group assembly, and large group assembly (sectioning). In the group elevation drawing, for double-bottom structures using a longitudinal skeleton, the components (crescent elbow plates or stiffening plates) connecting the inner and outer bottom longitudinal ribs on the transverse ribs need to be welded during the group elevation stage. The group elevation drawing of the ribs should indicate the positioning data of such components (crescent elbow plates or stiffening plates). Due to the arc or angle of the inner and outer bottom plates, as well as the differences in the transverse and longitudinal arrangement of the inner and outer bottom longitudinal ribs, the components connecting the inner and outer bottom longitudinal ribs are skewed. Moreover, the ends of the components are in the dotted area of ​​the through holes of the inner and outer bottom longitudinal ribs on the ribs. Therefore, it is very inconvenient to indicate the positioning data of the welding position lines of such components in the group elevation drawing of the ribs. Since each engineer has a different understanding, the auxiliary lines are also set differently, which can easily lead to large deviations in the positioning of the components due to measurement and scribing errors. Currently, the methods for marking the positioning dimensions of this type of component are divided into the following categories: 3.1. The positioning dimensions of the component are obtained by extending or adding auxiliary lines through other intersecting structural lines. This method of marking positioning data and replicating it on-site is cumbersome and has the lowest work efficiency. 3.2. The positioning dimensions are marked by the intersection of the component position line and the edge of the corresponding longitudinal bone through hole. The positioning is determined by the vertical distance between the intersection and the straight part (18) of the longitudinal bone through hole. The other end of the component is also obtained by the same method. The two intersections are connected by a straight line, which is the positioning line of this type of component. On-site replication of this type of positioning data requires adding the extension line of the straight part (18) of the longitudinal bone through hole and drawing a parallel line according to the marked distance to intersect the edge of the longitudinal bone through hole to obtain the positioning point. The replication process is more troublesome and the work efficiency is the same as in item 3.1. 3.3. The positioning dimensions are marked directly on the end of the component (the side segment connection component is in an oblique or horizontal position). Since the end of the component is inside the longitudinal bone through hole (usually called a virtual position), it is even more difficult to accurately replicate the positioning line of the component on-site.When replicating such positioning data on-site, because the actual points cannot be marked, it is often judged visually, resulting in a large deviation. 3.4 When the end of the component positioning line is extended outward and there is a clearly identifiable intersection with the edge of the rib, the arc length or distance between the intersection and the identifiable feature point on the edge of the rib is directly marked. This dimension is more accurate, but it is not applicable to cases without intersection and can only be partially applied. Although the above four methods for marking the positioning dimensions of the rib (or side) sub-assembly component positioning lines are different, they all require marking the positioning dimensions in the sub-assembly drawing. Before the sub-assembly is fabricated on-site, it is necessary to replicate each dimension according to the marked dimensions in the drawing. The process requires several conversion steps, and some methods provide a virtual positioning point that can only be judged visually. Therefore, the drawing of component positioning lines is prone to deviation, leading to rework during segmented assembly and welding. Some shipyards adopt the method of leaving 100mm at each end for delayed welding when welding such components. When the sub-assembly is hoisted and assembled into segments, it is bent and aligned on-site according to the deviation of the component from the inner and outer bottom longitudinal ribs, which increases the workload of assembly and welding during segmented fabrication. Summary of the Invention

[0005] The technical problem to be solved by this invention is to provide a ship component positioning line marking device that, in view of the shortcomings of the prior art, can conveniently and quickly complete the marking of positioning lines for ship components, reduce workload and errors, can be completed by one person without the need for multiple people to assist, has simple steps, can save a lot of working time, and reduces the intensity of the marking operation.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0007] This invention relates to a marking device for positioning lines on ship components, comprising a ruler, a first sliding assembly, and a second sliding assembly. The first and second sliding assemblies are movably connected to the ruler. The first sliding assembly includes a positioning plate, an adjusting plate, and a sliding seat plate. The second sliding assembly includes a positioning plate, an adjusting plate, and a sliding seat plate. The sliding seat plate is movably fitted onto the ruler. A rotating shaft connects the adjusting plate, the positioning plate, and the sliding seat plate. The positioning plate includes a protruding arc portion protruding to one side and a shoulder portion protruding to the other side. A first through groove is provided on one side of the longitudinal rib connecting member, the first through groove including a groove portion, a through hole portion, and a side portion. A second through groove is provided on the other side of the longitudinal rib connecting member, the second through groove including a groove portion, a through hole portion, and a side portion.

[0008] The sliding seat plate of the first sliding assembly includes a front panel and a rear panel. The lower parts of the front panel and the rear panel are connected by a bolt assembly, and the upper parts of the front panel and the rear panel are connected by a bolt assembly. An installation channel is formed between the front panel and the rear panel, and the sliding seat plate of the first sliding assembly is movably fitted onto the ruler through the installation channel.

[0009] The sliding base plate of the second sliding assembly includes a front panel and a rear panel. The lower parts of the front panel and the rear panel are connected by a bolt assembly, and the upper parts of the front panel and the rear panel are connected by a bolt assembly. An installation channel is formed between the front panel and the rear panel. The sliding base plate of the second sliding assembly is movably mounted on the ruler through the installation channel.

[0010] The positioning plate of the first sliding component is provided with two linear limiting holes, and the adjustment plate of the first sliding component is provided with two linear limiting holes. The linear limiting holes on the positioning plate of the first sliding component and the linear limiting holes on the adjustment plate are in one-to-one correspondence. The linear limiting holes on the positioning plate of the second sliding component and the linear limiting holes on the adjustment plate are in one-to-one correspondence. The linear limiting holes 14 are concentric holes.

[0011] The positioning plate of the first sliding component has two eccentric connecting holes, and the adjusting plate of the first sliding component has two eccentric connecting holes; the positioning plate of the second sliding component has two eccentric connecting holes, and the adjusting plate of the second sliding component has two eccentric connecting holes; the positions of the eccentric connecting holes on the positioning plate and the adjusting plate of the first sliding component correspond one-to-one; the positions of the eccentric connecting holes on the positioning plate and the adjusting plate of the second sliding component correspond one-to-one, and the eccentric connecting holes are eccentric holes.

[0012] A limiting block is provided at the end of the ruler. The thickness of the ruler is less than the height of the installation channel, and the sum of the thickness of the ruler 1 and the thickness of the limiting block is greater than the height of the installation channel.

[0013] The protruding arc portion of the positioning plate of the first sliding component has a semi-circular structure, and the through hole portion of the first through groove of the longitudinal bone connecting member has a semi-circular structure. The radius of the protruding arc portion of the first sliding component is equal to the radius of the through hole portion of the first through groove.

[0014] The protruding arc portion of the positioning plate of the second sliding component has a semi-circular structure, and the through hole portion of the second through groove of the longitudinal bone connecting member has a semi-circular structure. The radius of the protruding arc portion of the second sliding component is equal to the radius of the through hole portion of the second through groove.

[0015] The first sliding assembly has a top bolt on its adjustment plate, and the second sliding assembly has a top bolt on its adjustment plate.

[0016] This invention also relates to a simple method for marking positioning lines on ship components, which can conveniently and quickly complete the marking process, reduce workload and errors, and can be completed by one person without the need for multiple assistants. The method is simple, saves a significant amount of working time, and reduces the intensity of the marking operation. The marking steps of the method are as follows:

[0017] S1. A device for marking positioning lines of ship components is made. The first sliding component and the second sliding component hold the ruler together and fix it by a bolt component at the upper end and two bolt components at the lower end. The ruler is positioned and limited by the three bolt components at three points on the first sliding component and the second sliding component. The first sliding component and the second sliding component can slide along the ruler.

[0018] S2. The adjusting plate and positioning plate of each sliding component are connected by a rotating shaft. The positioning plate rotates around a rotating shaft near the edge of the ruler. Another bolt assembly on the outside is used to fix the adjusting plate and positioning plate, and also serves as the adjusting handle.

[0019] S3. According to the deflection position of the longitudinal bone through hole of the longitudinal bone connecting member, adjust the direction of the adjustment plate of the first sliding component and the direction of the adjustment plate of the second sliding component, and embed the positioning plate into the longitudinal bone through hole. The protruding arc of the positioning plate is fitted into the groove of the longitudinal bone through hole, and the shoulder of the positioning plate is attached to the straight part of the longitudinal bone through hole. After the first sliding component and the second sliding component are positioned, the relative position of the ruler and the longitudinal bone connecting member is fixed.

[0020] S4. The operator holds the ruler with his left hand and the stone pencil with his right hand, and slides the stone pencil along the reference edge of the ruler from one end of the sliding component to the other end of the sliding component to complete the marking of the component positioning line;

[0021] S5. Repeat the above steps to scribing the other positioning lines of the component until all the components are scribed, then move on to the next component to scribing.

[0022] The working principle and beneficial effects of the technical solution adopted in this invention are as follows:

[0023] The present invention provides a ship component positioning line marking device based on the positioning of component ends and the characteristics of longitudinal rib through-hole nodes. This marking device uses a ruler as a sliding reference and includes two sliding components. Each sliding component includes a positioning plate, a sliding seat plate, and an adjusting plate. The sliding components and the ruler are assembled and fixed using three-point bolts. The ruler is inserted into the two sliding components, with its reference edge pressed against the rotating shaft. The two sliding components can move relative to the ruler. The distance between the two sliding components on the ruler is adjusted according to the position of the longitudinal rib through-holes connected to the component to match the positions of the two longitudinal rib through-holes. Simultaneously, the operator rotates the two adjusting plates of the two sliding components with both hands, causing the positioning plate to rotate to a position overlapping with the longitudinal rib through-hole. The positioning plate then embeds into the groove of the longitudinal rib through-hole, ensuring that the positioning plate is pressed tightly against the longitudinal rib through-hole in a unique and specific position. The reference edge of the ruler is located at the specific position of the component positioning line. The component positioning line can then be marked using a marking stone pencil pressed against the reference edge of the ruler. In this way, when marking the positioning lines of components on site, it is not necessary to copy the end positioning data one by one according to the group's elevation drawing. Instead, the lines can be marked directly after the device is positioned, reducing the workload. It eliminates the need for visual judgment, reducing errors. When marking the lines, one person holds the marking ruler with both hands and simultaneously adjusts the adjustment plate to be consistent with the direction of the longitudinal bone through hole. There are no extra auxiliary or intermediate steps. The process is simple, and once the operator is skilled, it saves a lot of working time. Attached Figure Description

[0024] The following is a brief explanation of the contents depicted in the accompanying drawings and the markings therein:

[0025] Figure 1 This is a schematic diagram of the ship component positioning line marking device described in this invention;

[0026] Figure 2 This is a partial front view of the ship component positioning line marking device described in this invention.

[0027] Figure 3 This is a partial back view of the ship component positioning line marking device described in this invention.

[0028] Figure 4 This is a structural schematic diagram of the ship component described in this invention;

[0029] Figure 5 This is a partial structural schematic diagram of the ship component positioning line marking device described in this invention;

[0030] Figure 6 This is a partial structural diagram of the ship component positioning line marking device described in this invention when it is positioned on a component.

[0031] Figure 7This is a partial structural diagram of the ship component positioning line marking device of the present invention when it is positioned on a component;

[0032] Figure 8 This is a partial structural diagram of the ship component positioning line marking device described in this invention during use.

[0033] Figure 9 This is a partial structural diagram of the ship component positioning line marking device described in this invention during use.

[0034] Figure 10 This is a schematic diagram of the longitudinal bone through-hole node described in this invention;

[0035] The labels in the attached diagram are as follows: 1. Ruler; 2. First sliding assembly; 3. Second sliding assembly; 3a. Positioning plate; 3b. Adjustment plate; 3c. Sliding seat plate; 3d. Bolt assembly; 3e. Rotating shaft; 3f. Protruding arc of positioning plate; 3g. Shoulder; 3i. Top bolt (adjustment handle); 4. Longitudinal bone connecting component; 5. First through groove; 6. Groove; 7. Through hole; 8. Side; 9. Second through groove; 10. Front panel; 11. Rear panel; 13. Installation channel; 14. Linear limiting hole; 15. Eccentric limiting hole; 16. Limiting block; 17. Component positioning line; 18. Straight part. Detailed Implementation

[0036] The following description, with reference to the accompanying drawings, provides a more detailed explanation of the specific embodiments of the present invention, including the shape and structure of each component, the relative positions and connections between the parts, the functions and working principles of each part:

[0037] As attached Figure 1 - Appendix Figure 10 As shown, this invention is a marking device for positioning lines on ship components, including a ruler 1, a first sliding assembly 2, and a second sliding assembly 3. The first sliding assembly 2 and the second sliding assembly 3 are movably connected to the ruler 1. The first sliding assembly 2 includes a positioning plate 3a, an adjusting plate 3b, and a sliding seat plate 3c. The second sliding assembly 3 includes a positioning plate 3a, an adjusting plate 3b, and a sliding seat plate 3c. The sliding seat plate 3c is movably fitted onto the ruler 1. A rotating shaft 3e movably connects the adjusting plate 3b, the positioning plate 3a, and the sliding seat plate 3c. The positioning plate 3a includes a protruding arc portion 3f protruding to one side and a shoulder portion 3g protruding to the other side. A first through groove 5 is provided on one side of the longitudinal rib connecting member 4, including a groove portion 6, a through hole portion 7, and a side portion 8. A second through groove 9 is provided on the other side of the longitudinal rib connecting member 4, including a groove portion 6, a through hole portion 7, and a side portion 8. The above structure addresses the shortcomings of the prior art by proposing an improved technical solution. When setting up the structure, the end positioning of the components and the characteristics of the longitudinal skeleton through-hole nodes are considered. Figure 10), and provides a device for marking positioning lines on ship components (see Figure 1 This marking device uses a ruler as a sliding reference and consists of two sliding components. Each component includes a positioning plate, a sliding seat plate, and an adjusting plate. The sliding components and the ruler are assembled and fixed using three-point bolts. The ruler is inserted into the two sliding components, with its reference edge (the side with the component positioning line) pressed against the rotating shaft (top bolt group). The two sliding components can move relative to the ruler. Based on the position of the longitudinal bone through-holes connecting the component, the distance between the two sliding components on the ruler is adjusted to match the positions of the two longitudinal bone through-holes. Simultaneously, the operator rotates the two adjusting plates of each sliding component, causing the positioning plate to rotate to a position overlapping with the longitudinal bone through-hole. The positioning plate then embeds into the groove of the longitudinal bone through-hole, ensuring that the positioning plate is firmly pressed against the through-hole in a single, specific position. The reference edge of the ruler is located at the specific position of the component positioning line. The component positioning line is then marked using a marking stone pen pressed against the reference edge of the ruler. This eliminates the need to copy the end positioning data one by one from the group's elevation drawing when marking component positioning lines on-site; instead, lines can be marked directly after the device is positioned, reducing workload. Visual judgment is not required, reducing errors. During marking, one person holds the marking ruler with both hands simultaneously, synchronously adjusting the positioning plate to align with the direction of the longitudinal rib through-hole. There are no unnecessary auxiliary or intermediate steps; the process is simple, and with practice, it saves a significant amount of time. The ship component positioning line marking device described in this invention has a simple structure, enabling convenient and quick marking of ship component positioning lines, reducing workload and errors. It can be completed by one person without the need for multiple assistants, and the simple steps save considerable time and reduce the intensity of the marking operation.

[0038] The sliding base plate 3c of the first sliding assembly 2 includes a front panel 10 and a rear panel 11. The lower parts of the front panel 10 and the rear panel 11 are connected by bolt assemblies 3d and 3d, respectively. An installation channel 13 is formed between the front panel 10 and the rear panel 11. The sliding base plate 3c of the first sliding assembly 2 is movably fitted onto the ruler 1 through the installation channel 13. The sliding base plate 3c of the second sliding assembly 3 also includes a front panel 10 and a rear panel 11. The lower parts of the front panel 10 and the rear panel 11 are connected by bolt assemblies 3d and 3d, respectively. An installation channel 13 is formed between the front panel 10 and the rear panel 11. The sliding base plate 3c of the second sliding assembly 3 is movably fitted onto the ruler 1 through the installation channel 13. In the above structure, the first sliding component 2 and the second sliding component 3 are respectively structurally set to ensure that the first sliding component 2 and the second sliding component 3 can be reliably and flexibly mounted on the ruler 1 and can move along the ruler as needed. The positioning plate and adjustment plate of each sliding component can rotate relative to the rotating axis (rotation axis) to facilitate positioning with the component.

[0039] The first sliding component 2 has two linear limiting holes 14 on its positioning plate 3a and two linear limiting holes 14 on its adjusting plate 3b. The linear limiting holes 14 on the positioning plate 3a and the adjusting plate 3b of the first sliding component 2 are in one-to-one correspondence. The linear limiting holes 14 on the positioning plate 3a and the adjusting plate 3b of the second sliding component 2 are also in one-to-one correspondence, and the linear limiting holes 14 are concentric holes. The left concentric hole is for installing fixing bolts in a straight line, which can be used for batch scribing of longitudinal bone through holes without deflection. The right concentric hole is for installing rotating shaft bolts. In the above structure, each sliding seat plate is provided with a straight limiting hole 14 below it. The upper row is a straight limiting hole 14 and the lower row is an eccentric limiting hole 15. The straight limiting hole 14 and the limiting hole 15 are used to limit the distance of the steel ruler from the edge of the longitudinal bone ball to the corner point of the longitudinal bone. The upper row corresponds to the case where the concentric hole of the rotating shaft is aligned with the corner point of the longitudinal bone, and the lower row corresponds to the case where the rotating shaft (eccentric hole) is deviated from the corner point of the longitudinal bone by 6mm.

[0040] The first sliding component 2 has two eccentric connecting holes 15 on its positioning plate 3a and two eccentric connecting holes 15 on its adjusting plate 3b; the second sliding component 2 also has two eccentric connecting holes 15 on its positioning plate 3a and two eccentric connecting holes 15 on its adjusting plate 3b; the positions of the eccentric connecting holes 15 on the positioning plate 3a and adjusting plate 3b of the first sliding component 2 correspond one-to-one; the positions of the eccentric connecting holes 15 on the positioning plate 3a and adjusting plate 3b of the second sliding component 2 also correspond one-to-one, and the eccentric connecting holes 15 are eccentric holes. The left eccentric hole is used to install a fixing bolt when the component deviates 6mm from the corner point of the longitudinal bone, and can be used for batch scribing in cases where the longitudinal bone through hole has no deflection; the right eccentric hole is used to install a rotating shaft bolt (when the component deviates 6mm from the corner point of the longitudinal bone). In the above structure, the pivot of each sliding component passes through a concentric connecting hole 14 or 15 (offset by 6mm) of the positioning plate 3a, the adjusting plate 3b, and the sliding seat plate 3c, ensuring that the positioning plate 3a and the adjusting plate 3b rotate along the pivot. For the eccentric hole as the pivot (the connecting component is offset by 6mm from the corner of the longitudinal skeleton), this offset value can be modified and customized according to the node requirements to meet the marking requirements of the positioning lines of all components connecting the inner and outer bottom longitudinal skeletons in ship design.

[0041] A limiting block 16 is provided at the end of the ruler 1. The thickness of the ruler 1 is less than the height of the mounting channel 13, and the sum of the thickness of the ruler 1 and the thickness of the limiting block 16 is greater than the height of the mounting channel 13. This structure ensures that the limiting block can effectively prevent the sliding component from detaching from the ruler.

[0042] The raised arc portion 3f of the positioning plate 3a of the first sliding component 2 has a semi-circular structure, and the through hole portion 7 of the first through groove 5 of the longitudinal bone connecting member 4 has a semi-circular structure. The radius of the raised arc portion 3f of the first sliding component 2 is equal to the radius of the through hole portion 7 of the first through groove 5. In this structure, during the scribing process, the raised arc portion 3f of the first sliding component 2 is used to engage with the through hole portion 7 of the first through groove 5, facilitating the scribing operation.

[0043] The raised arc portion 3f of the positioning plate 3a of the second sliding component 3 has a semi-circular structure, and the through hole portion 7 of the second through groove 9 of the longitudinal bone connecting member 4 has a semi-circular structure. The radius of the raised arc portion 3f of the second sliding component 3 is equal to the radius of the through hole portion 7 of the second through groove 9. In the above structure, during the scribing process, the raised arc portion 3f of the second sliding component 3 is used to engage with the through hole portion 7 of the second through groove 9, facilitating the scribing operation.

[0044] The first sliding assembly 2 has a top bolt 3i on its adjusting plate 3b, and the second sliding assembly 3 has a top bolt 3i on its adjusting plate 3b. In this structure, the top bolt also serves as an adjusting handle.

[0045] This invention also relates to a simple method for marking positioning lines on ship components, which can conveniently and quickly complete the marking process, reduce workload and errors, and can be completed by one person without the need for multiple assistants. The method is simple, saves a significant amount of working time, and reduces the intensity of the marking operation. The marking steps of the method are as follows:

[0046] S1. A ship component positioning line marking device is made. The first sliding component 2 and the second sliding component 3 hold the ruler 1 together and fix it by one bolt component 3d at the upper end and two bolt components 3d at the lower end. The ruler 1 is positioned and limited by the three points formed by the three bolt components 3d on the first sliding component 2 and the second sliding component 3. The first sliding component 2 and the second sliding component 3 can slide along the ruler 1.

[0047] S2. The adjusting plate 3b and the positioning plate 3a of each sliding component are connected by a rotating shaft 3e respectively. The positioning plate 3a rotates around a rotating shaft 3e near the edge of the ruler 1. Another bolt assembly 3d on the outside is used to fix the adjusting plate 3b and the positioning plate 3a, and also serves as the adjusting handle.

[0048] S3. Based on the deflection position of the longitudinal bone through hole 5 of the longitudinal bone connecting member 4, adjust the direction of the adjusting plate 3b of the first sliding component 2 and the direction of the adjusting plate 3b of the second sliding component 3, and embed the positioning plate 3a into the longitudinal bone through hole 5. The positioning plate protruding arc 3f of the positioning plate 3a is fitted into the groove 6 of the longitudinal bone through hole 5, and the shoulder 3g of the positioning plate 3a is attached to the straight part 18 of the longitudinal bone through hole 5. After the first sliding component 2 and the second sliding component 3 are positioned, the relative position of the ruler 1 and the longitudinal bone connecting member 4 is fixed.

[0049] S4. The operator holds the ruler with his left hand and the stone pencil with his right hand, and slides the stone pencil along the reference edge of the ruler 1, moving it from one end of the sliding component to the other end of the sliding component to complete the marking of the component positioning line.

[0050] S5. Repeat the above steps to scribing the other positioning lines of the component until all the components are scribed, then move on to the next component to scribing.

[0051] The present invention provides a ship component positioning line marking device based on the positioning of component ends and the characteristics of longitudinal rib through-hole nodes. This marking device uses a ruler as a sliding reference and includes two sliding components. Each sliding component includes a positioning plate, a sliding seat plate, and an adjusting plate. The sliding components and the ruler are assembled and fixed using three-point bolts. The ruler is inserted into the two sliding components, with its reference edge pressed against the rotating shaft. The two sliding components can move relative to the ruler. The distance between the two sliding components on the ruler is adjusted according to the position of the longitudinal rib through-holes connected to the component to match the positions of the two longitudinal rib through-holes. Simultaneously, the operator rotates the two adjusting plates of the two sliding components with both hands, causing the positioning plate to rotate to a position overlapping with the longitudinal rib through-hole. The positioning plate then embeds into the groove of the longitudinal rib through-hole, ensuring that the positioning plate is pressed tightly against the longitudinal rib through-hole in a unique and specific position. The reference edge of the ruler is located at the specific position of the component positioning line. The component positioning line can then be marked using a marking stone pencil pressed against the reference edge of the ruler. In this way, when marking the positioning lines of components on site, it is not necessary to copy the end positioning data one by one according to the group's elevation drawing. Instead, the lines can be marked directly after the device is positioned, reducing the workload. It eliminates the need for visual judgment, reducing errors. When marking the lines, one person holds the marking ruler with both hands and simultaneously adjusts the adjustment plate to be consistent with the direction of the longitudinal bone through hole. There are no extra auxiliary or intermediate steps. The process is simple, and once the operator is skilled, it saves a lot of working time.

[0052] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A device for marking positioning lines on ship components, characterized in that: The system includes a ruler (1), a first sliding assembly (2), and a second sliding assembly (3). The first sliding assembly (2) and the second sliding assembly (3) are movably connected to the ruler (1). The first sliding assembly (2) includes a positioning plate (3a), an adjusting plate (3b), and a sliding seat plate (3c). The second sliding assembly (3) includes a positioning plate (3a), an adjusting plate (3b), and a sliding seat plate (3c). The sliding seat plate (3c) is movably fitted onto the ruler (1). The rotating shaft (3e) movably moves the adjusting plate (3b) to the ruler (1). The positioning plate (3a) is connected to the sliding seat plate (3c). The positioning plate (3a) includes a protruding arc portion (3f) protruding to one side and a shoulder portion (3g) protruding to the other side. A first through groove (5) is provided on one side of the longitudinal bone connecting member (4). The first through groove (5) includes a groove portion (6), a through hole portion (7) and a side portion (8). A second through groove (9) is provided on the other side of the longitudinal bone connecting member (4). The second through groove (9) includes a groove portion (6), a through hole portion (7) and a side portion (8). The protruding arc portion (3f) of the positioning plate (3a) of the first sliding component (2) is a semi-circular structure, and the through hole portion (7) of the first through groove (5) of the longitudinal bone connecting member (4) is a semi-circular structure. The radius of the protruding arc portion (3f) of the first sliding component (2) is equal to the radius of the through hole portion (7) of the first through groove (5). The protruding arc portion (3f) of the positioning plate (3a) of the second sliding component (3) is a semi-circular structure, and the through hole portion (7) of the second through groove (9) of the longitudinal bone connecting member (4) is a semi-circular structure. The radius of the protruding arc portion (3f) of the second sliding component (3) is equal to the radius of the through hole portion (7) of the second through groove (9).

2. The ship component positioning line marking device according to claim 1, characterized in that: The sliding seat plate (3c) of the first sliding assembly (2) includes a front panel (10) and a rear panel (11). The lower parts of the front panel (10) and the rear panel (11) are connected by a bolt assembly (3d), and the upper parts of the front panel (10) and the rear panel (11) are connected by a bolt assembly (3d). An installation channel (13) is formed between the front panel (10) and the rear panel (11). The sliding seat plate (3c) of the first sliding assembly (2) is movably mounted on the ruler (1) through the installation channel (13).

3. The ship component positioning line marking device according to claim 2, characterized in that: The sliding seat plate (3c) of the second sliding assembly (3) includes a front panel (10) and a rear panel (11). The lower parts of the front panel (10) and the rear panel (11) are connected by a bolt assembly (3d), and the upper parts of the front panel (10) and the rear panel (11) are connected by a bolt assembly (3d). An installation channel (13) is formed between the front panel (10) and the rear panel (11). The sliding seat plate (3c) of the second sliding assembly (3) is movably mounted on the ruler (1) through the installation channel (13).

4. The ship component positioning line marking device according to claim 3, characterized in that: The first sliding component (2) has two linear limiting holes (14) on its positioning plate (3a) and two linear limiting holes (14) on its adjusting plate (3b). The linear limiting holes (14) on the positioning plate (3a) and the adjusting plate (3b) of the first sliding component (2) are in one-to-one correspondence. The linear limiting holes (14) on the positioning plate (3a) and the adjusting plate (3b) of the second sliding component (3) are in one-to-one correspondence. The linear limiting holes (14) are concentric holes.

5. The ship component positioning line marking device according to claim 4, characterized in that: The first sliding component (2) has two eccentric connecting holes (15) on its positioning plate (3a) and two eccentric connecting holes (15) on its adjusting plate (3b); the second sliding component (3) has two eccentric connecting holes (15) on its positioning plate (3a) and two eccentric connecting holes (15) on its adjusting plate (3b); the positions of the eccentric connecting holes (15) on the positioning plate (3a) and the adjusting plate (3b) of the first sliding component (2) correspond one-to-one; the positions of the eccentric connecting holes (15) on the positioning plate (3a) and the adjusting plate (3b) of the second sliding component (3) correspond one-to-one, and the eccentric connecting holes (15) are eccentric holes.

6. The ship component positioning line marking device according to claim 5, characterized in that: The ruler (1) is provided with a limiting block (16) at its end. The thickness of the ruler (1) is less than the height of the installation channel (13), and the sum of the thickness of the ruler (1) and the thickness of the limiting block (16) is greater than the height of the installation channel (13).

7. The ship component positioning line marking device according to claim 6, characterized in that: The first sliding assembly (2) has a top bolt (3i) on its adjusting plate (3b) and the second sliding assembly (3) has a top bolt (3i) on its adjusting plate (3b).

8. The method for marking and positioning ship components using the ship component positioning line marking device according to claim 7, characterized in that: The marking steps of the aforementioned ship component positioning marking method are as follows: S1. To manufacture a ship component positioning line marking device, the first sliding component (2) and the second sliding component (3) hold the ruler (1) together and fix it by a bolt component (3d) at the upper end and two bolt components (3d) at the lower end. The ruler (1) is positioned and limited by the three points formed by the three bolt components (3d) on the first sliding component (2) and the second sliding component (3). The first sliding component (2) and the second sliding component (3) can slide along the ruler (1). S2. The adjusting plate (3b) and the positioning plate (3a) of each sliding assembly are connected by a pivot (3e). The positioning plate (3a) rotates about a pivot (3e) near the edge of the ruler (1). Another bolt assembly (3d) on the outside is used to fix the adjusting plate (3b) and the positioning plate (3a), and also serves as the adjusting handle. S3. According to the deflection position of the first through groove (5) of the longitudinal bone connecting member (4), adjust the direction of the adjustment plate (3b) of the first sliding component (2), adjust the direction of the adjustment plate (3b) of the second sliding component (3), and embed the positioning plate (3a) into the first through groove (5) and position it. The positioning plate protruding arc (3f) of the positioning plate (3a) is fitted into the groove (6) of the first through groove (5), and the shoulder (3g) of the positioning plate (3a) is attached to the straight part (18) of the first through groove (5). After the first sliding component (2) and the second sliding component (3) are positioned, the relative position of the ruler (1) and the longitudinal bone connecting member (4) is fixed. S4. The operator holds the ruler with his left hand and the stone pen with his right hand, and slides the stone pen along the reference edge of the ruler (1) from one end of the sliding component to the other end of the sliding component to complete the marking of the component positioning line; S5. Repeat the above steps to scribing the other positioning lines of the component until all the components are scribed, then move on to the next component to scribing.

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