A tool for positioning and detecting a panel member for an oil tanker
By designing a positioning and inspection tool for tanker panel components, and utilizing a support square, rotating rod ruler, and locking components, the problem of inaccurate panel component positioning was solved, enabling rapid and accurate component positioning and inspection, and improving installation precision.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 恒力造船(大连)有限公司
- Filing Date
- 2025-08-12
- Publication Date
- 2026-07-14
AI Technical Summary
During the segmented assembly of Aframax tankers, the positioning and dimensional accuracy of the panel components is difficult to achieve at the millimeter level, and existing methods rely on visual inspection, resulting in inaccurate positioning.
Design a positioning and inspection tool for tanker panel components, including a support square, a rotating rod ruler and a locking component. By setting a third inspection surface to maintain a fixed angle with the first inspection surface and aligning the second inspection surface with the cut-off line, the tool observes the fit between the third inspection surface and the component to determine whether the positioning is accurate.
It enables rapid and accurate positioning and detection of panel components, improves the installation accuracy of components, and avoids problems such as cutting or gap exceeding tolerance.
Smart Images

Figure CN224499311U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shipbuilding technology, and in particular to a positioning and testing tool for panel components used in oil tankers. Background Technology
[0002] Aframax tankers, as economical tankers for short-haul transportation, typically have a deadweight tonnage between 80,000 and 120,000 tons, offering high economic efficiency and flexibility. Currently, the mainstream tanker type exceeds 240 meters in length. The main hull of an Aframax tanker consists of a watertight outer shell composed of decks and outer plating, internally divided into numerous compartments by decks, longitudinal and transverse bulkheads, and their framework. The main hull is a long box-shaped structure composed of steel plates and a framework, with framework types including longitudinal, transverse, and hybrid frameworks. The main hull often employs plate welding during the assembly of segmented ship components. During segmented assembly, the positioning and dimensional marking of stiffeners, elbows, and other components require millimeter-level precision. To ensure installation accuracy, cut-off lines are marked above the rib beam holes according to the component's installation position, and components must be installed according to these cut-off lines to avoid adjustments or gaps exceeding tolerances during segmented assembly.
[0003] In actual production, because the cut-off line is marked on both sides of the beam opening, but the component is installed at the beam opening location, the end of the component cannot be directly aligned with the cut-off line. Construction workers often have to rely on visual inspection to determine whether the angle between the component and the cut-off line meets the process requirements. Therefore, a cut-off line inspection fixture needs to be designed to ensure accurate positioning. Utility Model Content
[0004] This utility model provides a positioning and detection tool for splicing components for oil tankers to solve the above-mentioned technical problems.
[0005] To achieve the above objectives, the technical solution of this utility model is as follows:
[0006] A positioning and inspection tool for tanker panel components includes: a support square ruler, a rotating rod ruler rotatably connected to the support square ruler, a locking component, and an adjusting component; the support square ruler includes a first inspection surface for fitting the ribs and a second inspection surface for aligning the cut-off line; the rotating rod ruler includes a third inspection surface for fitting the component; when the locking component is unlocked, the rotating rod ruler can rotate freely; when the locking component is locked, the third inspection surface and the first inspection surface maintain a fixed angle; the adjusting component is used to adjust the position of the rotating rod ruler in a direction parallel to the first inspection surface and perpendicular to the rotation axis of the rotating rod ruler.
[0007] Preferably, the locking component includes a rotating shaft and two locking nuts. The rotating shaft is mounted on the square ruler of the bracket, and the rotating rod ruler is rotatably connected to the rotating shaft. The locking nuts are threadedly connected to the rotating shaft, and the two locking nuts have opposite directions of rotation. The two locking nuts are tightened from both sides of the rotating rod ruler to press the rotating rod ruler.
[0008] Preferably, the adjusting component includes: a mounting groove, a sliding groove, and a connecting slider; the mounting groove is formed on the first limiting surface of the bracket square opposite to the first detection surface, and the mounting groove extends to the second detection surface; sliding grooves are formed on both side walls opposite to the mounting groove, which are parallel to the first detection surface; connecting sliders are fixed at both ends of the rotating shaft, and the connecting sliders are matched with the sliding grooves to slide along the sliding grooves.
[0009] Preferably, the size of the connecting slider is larger than the size of the end of the rotating shaft along the direction parallel to the first detection surface; the connecting slider is provided with a set screw, which is located on the side of the rotating shaft away from the second detection surface, and the set screw passes through the connecting slider and is pressed against the bottom of the sliding groove.
[0010] Preferably, the rotating rod includes a rotating ring and a rod. The rotating ring is rotatably mounted on the rotating shaft, and one end of the rod is fixed to the outer circumference of the rotating ring while the other end extends freely.
[0011] Preferably, the side of the ruler away from the rotating shaft is the third detection surface, and the side of the ruler facing the rotating shaft is the second limiting surface; the distance between the second limiting surface and the axis of the rotating shaft is equal to the distance between the first limiting surface and the axis of the rotating shaft; when the rotating rod rotates to the point where the second limiting surface and the first limiting surface are in contact, the third detection surface is parallel to the first detection surface.
[0012] Preferably, the side of the ruler away from the axis of rotation is the third detection surface, and the third detection surface is tangent to the outer circumferential surface of the rotating ring.
[0013] Beneficial effects:
[0014] This application discloses a positioning and inspection tool for tanker panel components. By setting up a support square, a rotating rod ruler, and a locking component, it achieves the third inspection surface maintaining the assembly angle of the component with the first inspection surface. By aligning the second inspection surface with the cut-off line and observing whether the third inspection surface is in close contact with the component, it determines whether the angle between the component and the cut-off line meets the process requirements, thereby detecting whether the positioning is accurate. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of a positioning and testing tool for oil tanker panel components disclosed in this utility model;
[0017] Figure 2 This utility model discloses a structural schematic diagram of a positioning and testing tool for oil tanker panel components. Figure 1 ;
[0018] Figure 3 This utility model discloses a structural schematic diagram of a positioning and testing tool for oil tanker panel components. Figure 2 ;
[0019] Figure 4 This is a schematic diagram of the structure of a square ruler for positioning and testing tools for oil tanker panel components disclosed in this utility model;
[0020] Figure 5 This is a schematic diagram of the rotating rod ruler, a positioning and testing tool for oil tanker panel components, disclosed in this utility model.
[0021] 1. Support square ruler; 11. Second inspection surface; 12. Mounting groove; 13. Sliding groove; 14. First limiting surface; 2. Rotating rod ruler; 21. Third inspection surface; 22. Rotating ring; 23. Ruler rod; 24. Second limiting surface; 31. Rotating shaft; 311. Connecting slider; 32. Locking nut; 4. Rib plate; 41. Cut-off line; 5. Components. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0023] A positioning and inspection tool for oil tanker panel components, combined with Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the fixture includes: a support square ruler 1, a rotating rod ruler 2 rotatably connected to the support square ruler 1, a locking component, and an adjusting component. The support square ruler 1 includes a first detection surface for fitting the rib plate 4 and a second detection surface 11 for aligning with the cutoff line 41. The rotating rod ruler 2 includes a third detection surface 21 for fitting the component 5. When the locking component is unlocked, the rotating rod ruler 2 can rotate freely. When the locking component is locked, the third detection surface 21 maintains a fixed angle with the first detection surface. The adjusting component is used to adjust the position of the rotating rod ruler 2 in a direction parallel to the first detection surface and perpendicular to the rotation axis of the rotating rod ruler 2. This application achieves the third detection surface 21 maintaining the component assembly angle with the first detection surface by setting the support square ruler 1, the rotating rod ruler 2, and the locking component. By aligning the second detection surface 11 with the cutoff line 41 and observing whether the third detection surface 21 is tightly fitted with the component, it is determined whether the angle between the component and the cutoff line meets the process requirements, thereby detecting whether the positioning is accurate. Compared with the existing method of inspection using two sets of square measuring tools, the tooling inspection of this application is faster and more accurate.
[0024] Specifically, the support ruler 1 is a long strip of square plate, with its lower surface being the first detection surface, its side being the second detection surface 11, and its upper surface being the first limiting surface 14.
[0025] Preferably, the locking component includes a rotating shaft 31 and two locking nuts 32. The rotating shaft 31 is mounted on the square ruler 1 of the bracket, and the rotating rod ruler 2 is rotatably connected to the rotating shaft 31. The locking nuts 32 are threadedly connected to the rotating shaft 31, and the two locking nuts 32 have opposite directions of rotation. The two locking nuts 32 are tightened from both sides of the rotating rod ruler 2 to press the rotating rod ruler 2. When the two locking nuts 32 are loosened, they disengage from the rotating rod ruler 2, allowing the rotating rod ruler 2 to rotate freely, thereby adjusting the angle between the third detection surface 21 and the first detection surface.
[0026] Preferably, the adjusting components include: a mounting groove 12, a sliding groove 13, and a connecting slider 311; the mounting groove 12 is formed on the first limiting surface 14 of the bracket square 1 opposite to the first detection surface, and the mounting groove 12 extends to the second detection surface 11; sliding grooves 13 are formed on both opposite side walls of the mounting groove 12, parallel to the first detection surface; connecting sliders 311 are fixed at both ends of the rotating shaft 31, and the connecting sliders 311 match the sliding grooves 13 to slide along the sliding grooves 13. By sliding the connecting sliders 311 in the sliding grooves 13, the positions of the rotating shaft 31 and the rotating rod 2 are adjusted, thereby adjusting the position of the third detection surface 21 relative to the second detection surface 11.
[0027] Specifically, the sliding groove 13 can be designed as a dovetail groove, a T-groove, or a rectangular groove, and the corresponding connecting slider 311 can be designed as a dovetail shape, a "T" shape, or a square shape. The connecting slider 311 and the rotating shaft 31 are integrally machined.
[0028] Preferably, the size of the connecting slider 311 is larger than the size of the end of the rotating shaft 31 along the direction parallel to the first detection surface; the connecting slider 311 is provided with a set screw, which is located on the side of the rotating shaft 31 away from the second detection surface 11. After passing through the connecting slider 311, the set screw is pressed against the bottom of the sliding groove 13, thereby fixing the connecting slider 311 to prevent the connecting slider 311 from shaking.
[0029] Preferably, the rotating rod 2 includes a rotating ring 22 and a rod 23. The rotating ring 22 is rotatably sleeved on the rotating shaft 31, and one end of the rod 23 is fixed to the outer periphery of the rotating ring 22, while the other end extends freely.
[0030] Specifically, the rotating shaft 31 is provided with external threads, and the rotating ring 22 and the two locking nuts 32 are all threadedly connected to the rotating shaft 31. The threaded connection ensures the rotational accuracy of the rotating ring 22 and prevents it from shaking and causing the third detection surface 21 to twist, thus failing to fit the surface of the component.
[0031] Preferably, the side of the ruler 23 away from the rotating shaft 31 is the third detection surface 21, and the side of the ruler 23 facing the rotating shaft 31 is the second limiting surface 24; the distance between the second limiting surface 24 and the axis of the rotating shaft 31 is equal to the distance between the first limiting surface 14 and the axis of the rotating shaft 31, so that the second limiting surface 24 and the first limiting surface 14 can be completely fitted together; when the rotating rod 2 rotates to the point where the second limiting surface 24 and the first limiting surface 14 are fitted together, the third detection surface 21 is parallel to the first detection surface, so that the first detection surface and the third detection surface 21 can cover 0°-180°.
[0032] Preferably, the side of the ruler 23 away from the rotating shaft 31 is the third detection surface 21. The third detection surface 21 is tangent to the outer peripheral surface of the rotating ring 22, so as to avoid the outer peripheral surface of the rotating ring 22 from protruding and affecting the adhesion between the third detection surface 21 and the surface of the component.
[0033] Specifically, the rotating ring 22 and the ruler 23 are machined as a single piece to ensure accuracy.
[0034] The working principle of the device in this application is as follows:
[0035] Place the support ruler 1 at the position of the beam hole of the panel to be inspected, and adjust the support ruler 1 so that the first inspection surface is in contact with the rib plate 4 for stable support. Loosen the two locking nuts 32, and rotate the rotating rod ruler 2 to keep the angle between the third inspection surface 21 and the first inspection surface at the corresponding angle value according to the assembly angle of the component to be inspected, and lock it with the two locking nuts 32. Align the second inspection surface 11 of the support ruler 1 with the cutoff line 41, that is, adjust the intersection line of the second inspection surface 11 and the first inspection surface to coincide with the cutoff line 41. Slide the connecting slider 311 to adjust the position of the rotating shaft 31 so that the third inspection surface 21 contacts the surface of the component 5. Observe whether the third inspection surface 21 of the rotating rod ruler 2 is in close contact with the surface of the component 5 to determine whether the positioning of the component 5 is accurate. If it is not in close contact, the rib plate 4 and / or component 5 need to be adjusted and corrected. Alternatively, the second inspection surface 11 can be aligned with the cutoff line 41 by aligning the third inspection surface 21 with the surface of the component 5.
[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A positioning and inspection tool for panel components used in oil tankers, characterized in that, include: The bracket square ruler (1), the rotating rod ruler (2) rotatably connected to the bracket square ruler (1), the locking component, and the adjusting component; the bracket square ruler (1) includes a first detection surface for fitting the rib plate (4) and a second detection surface (11) for aligning the cut-off line (41); the rotating rod ruler (2) includes a third detection surface (21) for fitting the component (5); when the locking component is unlocked, the rotating rod ruler (2) can rotate freely; when the locking component is locked, the third detection surface (21) and the first detection surface maintain a fixed angle; the adjusting component is used to adjust the position of the rotating rod ruler (2) in a direction parallel to the first detection surface and perpendicular to the rotation axis of the rotating rod ruler (2).
2. The positioning and inspection tool for oil tanker panel components according to claim 1, characterized in that, The locking component includes a rotating shaft (31) and two locking nuts (32). The rotating shaft (31) is mounted on the bracket square (1), and the rotating rod (2) is rotatably connected to the rotating shaft (31). The locking nuts (32) are threadedly connected to the rotating shaft (31), and the two locking nuts (32) have opposite directions of rotation. The two locking nuts (32) are tightened from both sides of the rotating rod (2) to press the rotating rod (2).
3. The positioning and testing tool for oil tanker panel components according to claim 2, characterized in that, The adjustment components include: a mounting groove (12), a sliding groove (13), and a connecting slider (311); the mounting groove (12) is opened on the first limiting surface (14) of the bracket square (1) opposite to the first detection surface, and the mounting groove (12) extends to the second detection surface (11); the sliding groove (13) is opened on both sides of the mounting groove (12) along the parallel to the first detection surface; the connecting slider (311) is fixed at both ends of the rotating shaft (31), and the connecting slider (311) matches the sliding groove (13) to slide along the sliding groove (13).
4. The positioning and inspection tool for oil tanker panel components according to claim 3, characterized in that, Along the direction parallel to the first detection surface, the size of the connecting slider (311) is larger than the size of the end of the rotating shaft (31); the connecting slider (311) is provided with a set screw, the set screw is located on the side of the rotating shaft (31) away from the second detection surface (11), and the set screw passes through the connecting slider (311) and is pressed against the bottom of the sliding groove (13).
5. The positioning and inspection tool for oil tanker panel components according to claim 3, characterized in that, The rotating rod (2) includes a rotating ring (22) and a rod (23). The rotating ring (22) is rotatably mounted on the rotating shaft (31). One end of the rod (23) is fixed to the outer circumference of the rotating ring (22), and the other end extends freely.
6. The positioning and inspection tool for oil tanker panel components according to claim 5, characterized in that, The side of the ruler (23) away from the rotating shaft (31) is the third detection surface (21), and the side of the ruler (23) facing the rotating shaft (31) is the second limiting surface (24); the distance between the second limiting surface (24) and the axis of the rotating shaft (31) is equal to the distance between the first limiting surface (14) and the axis of the rotating shaft (31); when the rotating rod (2) rotates to the point where the second limiting surface (24) and the first limiting surface (14) are in contact, the third detection surface (21) is parallel to the first detection surface.
7. The positioning and inspection tool for oil tanker panel components according to claim 5, characterized in that, The side of the ruler (23) away from the rotating shaft (31) is the third detection surface (21), which is tangent to the outer circumferential surface of the rotating ring (22).