Novel type of bed for hull assembly

Abstract

The utility model discloses a novel code board for ship body assembly, which comprises a female plate and an iron wedge. The female plate comprises a fixed end and an adjusting end. A through welding hole is arranged between the fixed end and the adjusting end. A waist-shaped through hole is arranged in the adjusting end from top to bottom. A positioning hole is arranged in the upper part of the waist-shaped through hole. A positioning core shaft is inserted into the waist-shaped through hole. A plurality of circular holes corresponding to the positioning hole are arranged along the length direction of the positioning core shaft. A positioning pin is arranged through the positioning hole and the circular hole. The bottom of the positioning core shaft is pivotally connected with a roller shaft. The axis of the roller shaft is perpendicular to the long side of the waist-shaped cross section of the positioning core shaft. The lower end surface of the iron wedge is horizontally arranged. The upper end surface comprises an inclined surface and a horizontal surface. A U-shaped groove is arranged at one end of the inclined surface. The opening of the U-shaped groove is opposite to the bottom of the positioning core shaft. The opening width of the U-shaped groove is adapted to the thickness of the positioning core shaft. The outer periphery of the roller shaft is in stress contact with the inclined surface. The code board has stronger compatibility and can be used in different height difference scenes. The assembly precision is higher, and the problem of iron wedge deviation is avoided.

Description

Technical Field

[0001] This utility model relates to the field of ship hull operation tooling technology, specifically to a new type of ship hull assembly code plate. Background Technology

[0002] During the construction process of assembling ship sections, the assembly accuracy and welding quality of the joints directly affect the ship's construction cycle, manufacturing cost, and navigation safety. Therefore, efficient and reliable assembly auxiliary tooling is of paramount importance.

[0003] Traditional shipbuilding joint assembly often uses tools such as long plates and ordinary plates, requiring spot welding on both sides of the mating panel for fixation. This not only involves a large amount of spot welding work, but also easily damages the base material when the plates are removed later, making the repair welding area prone to welding defects. At the same time, the weld holes in traditional processes are often temporarily opened on-site, with non-standard sizes and shapes. This not only affects the quality of the welded joint, but may also cut the base material, leading to rejection by shipowners and surveyors. This increases the amount of rework and may even require large-scale plate replacement, seriously extending the shipbuilding cycle and increasing production costs.

[0004] To address the aforementioned issues, existing technologies include a marine butt joint assembly and welding auxiliary device, as disclosed in CN204584606U. This device uses a rectangular base plate, diagonal welding holes, and an iron wedge to achieve single-sided spot welding fixation, reducing the workload of spot welding and disassembly / repair. Furthermore, the device is lightweight and portable. However, these existing devices still have significant limitations: First, they lack a flexible height adjustment structure, making them unsuitable for assembly scenarios where there is a significant height difference between the reference panel and the panel to be adjusted, resulting in poor adaptability to butt joint requirements with varying height differences. Second, when adjusting the height of the panel to be adjusted by striking the iron wedge, the wedge shifts under the impact. Since there is no fixed trajectory, the direction of displacement is prone to deviation, affecting assembly accuracy.

[0005] Therefore, it is necessary to provide a new type of hull mounting plate to solve the above-mentioned technical problems. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing a new type of hull assembly plate that can handle different height differences and improve assembly accuracy.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A novel hull mounting plate includes a mother plate and an iron wedge. The mother plate includes a fixed end and an adjusting end, with a welding hole between the fixed end and the adjusting end. The adjusting end has a through-hole extending from top to bottom, with a through-positioning hole at the top of the through-hole. A matching positioning mandrel is inserted into the through-hole, and multiple circular holes corresponding to the positioning holes are formed along the length of the positioning mandrel. A positioning pin passes through the positioning hole and the circular holes to lock the position of the positioning mandrel in the through-hole. A roller is pivotally connected to the bottom of the positioning mandrel, and the axis of the roller is perpendicular to the long side of the waist-shaped section of the positioning mandrel. The lower end face of the iron wedge is horizontal, and the upper end face includes a slope and a horizontal surface. A U-shaped groove is formed at one end of the slope, with the opening of the U-shaped groove facing the bottom of the positioning mandrel. The opening width of the U-shaped groove is adapted to the thickness of the positioning mandrel, and the outer periphery of the roller is in contact with the slope.

[0009] Preferably, the inclined surface extends obliquely along one end of the wedge, and the angle between the extended surface of the inclined surface and the bottom end face of the wedge is 5° to 15°. It is important to note that when the inclination angle of the wedge is between 5° and 15°, it has a good self-locking effect, ensuring that the wedge will not shift during segmented docking and thus affecting the docking accuracy.

[0010] Preferably, the two ends of the locating pin are locked and fixed by nuts.

[0011] Preferably, the handle is fixedly attached to the fixed end of the mother plate.

[0012] Preferably, the fixed end of the mother plate is fixed to the reference panel, the iron wedge is placed on the panel to be adjusted, and the height of the calibration surface of the reference panel is lower than the height of the panel to be adjusted.

[0013] Compared with the prior art, this utility model has the following advantages:

[0014] 1. Enhanced adaptability, compatible with varying height differences: The design incorporates a waist-shaped through-hole, a positioning mandrel, and multiple sets of corresponding circular holes, allowing for flexible adjustment of the positioning mandrel's height. This precisely adapts to assembly requirements where the reference panel and the panel to be adjusted have different heights, overcoming the limitations of existing technologies in handling docking with varying height differences.

[0015] 2. Higher assembly precision, avoiding displacement issues: The U-shaped groove of the iron wedge is matched with the thickness of the positioning mandrel, limiting the movement trajectory of the iron wedge and preventing displacement direction deviation during hammering adjustment. The angle between the inclined surface of the iron wedge and the bottom end face is designed to be 5°-15°, which has a good self-locking effect, preventing the iron wedge from shifting on its own during segmented docking, further ensuring assembly precision. Attached Figure Description

[0016] Figure 1 This is an installation diagram of this utility model;

[0017] Figure 2This is a schematic diagram of the structure when the positioning mandrel is inserted into the U-shaped groove of the iron wedge;

[0018] Figure 3 This is a schematic diagram of the iron wedge structure;

[0019] Among them, 1-mother plate, 2-iron wedge, 201-sloping surface, 202-horizontal surface, 203-U-shaped groove, 3-reference panel, 4-panel to be adjusted, 5-handle, 6-positioning mandrel, 7-round hole, 8-nut, 9-roller. Detailed Implementation

[0020] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only for illustrating the present invention and not for limiting the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.

[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixed connection", etc., 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 connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] In this utility model, terms such as "upper", "lower", "bottom", and "top" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship between the various components or elements of this utility model and do not specifically refer to any component or element in this utility model. They should not be construed as limiting this utility model.

[0023] like Figures 1 to 3 As shown, a new type of hull mounting plate includes a mother plate 1 and an iron wedge 2. The mother plate is integrally formed from high-strength steel plate and includes a fixed end and an adjusting end. The fixed end of the mother plate is welded and fixed to a reference panel 3. The iron wedge is placed on the panel to be adjusted 4. The height of the calibration surface of the reference panel is lower than the height of the panel to be adjusted. The fixed end is welded with a handle 5 for easy hand operation and installation positioning. A welding hole is provided between the fixed end and the adjusting end. The welding hole has a rounded chamfer to avoid stress concentration and ensure smooth passage of the welding gun. The adjusting end has a waist-shaped through hole that runs from top to bottom. A through positioning hole is provided at the top of the waist-shaped through hole.

[0024] A matching positioning mandrel 6 is inserted into the waist-shaped through hole. The cross-sectional dimensions of the positioning mandrel are adapted to the waist-shaped through hole. Multiple round holes 7 corresponding to the positioning holes are opened along its length. The spacing of the round holes is set according to the common height difference requirements to ensure the continuity of height adjustment. The positioning pin locks the position of the positioning mandrel in the waist-shaped through hole by passing through the positioning hole and the round holes. The two ends of the positioning pin are locked and fixed by nuts 8. The bottom of the positioning mandrel is pivotally connected to the roller shaft 9 through the rotating shaft. The axis of the roller shaft is set perpendicular to the long side of the waist-shaped cross-section of the positioning mandrel to ensure that the roller shaft can roll along the iron wedge slope. The outer circumference of the roller shaft is in contact with the slope.

[0025] The lower end face of the iron wedge is horizontally set, and the upper end face includes a ramp surface 201 and a horizontal surface 202. The ramp surface extends obliquely along one end of the iron wedge and the angle between the extended surface of the ramp surface and the bottom end face of the iron wedge is 5°. A U-shaped groove 203 is opened at one end of the ramp surface. The opening of the U-shaped groove is directly opposite the bottom of the positioning mandrel, and the opening width of the U-shaped groove is adapted to the thickness of the positioning mandrel to ensure that the positioning mandrel can be embedded in the groove and does not shift laterally.

[0026] A method for using a new type of mounting plate on a ship's hull:

[0027] Step 1, Device Fixing: Fix the fixed end of the mother plate to the reference panel by spot welding, ensuring that the mother plate and the calibration surface of the reference panel are tightly fitted without any looseness. Place the iron wedge horizontally on the panel to be adjusted, so that the opening of the U-shaped groove of the iron wedge is directly opposite the bottom of the positioning mandrel, the positioning mandrel is embedded in the U-shaped groove, and the outer circumference of the roller shaft is in natural contact with the inclined surface of the iron wedge;

[0028] Step 2, Height Adjustment: According to the assembly requirements of the butt joint, if it is necessary to fine-tune the height of the positioning mandrel, loosen the nuts at both ends of the positioning pin, pull out the positioning pin, move the positioning mandrel up and down to the target position, realign the round hole and the positioning hole, insert the positioning pin and tighten the nuts to complete the height calibration;

[0029] Step 3, Panel Alignment and Calibration: Gently tap the horizontal end of the iron wedge with a hammer. Under the action of the tapping force, the iron wedge moves towards the positioning mandrel along the trajectory defined by the U-shaped groove. The roller rolls along the slope and applies a downward force to the iron wedge through the roller, so that the panel to be adjusted receives a downward pressure force, thereby achieving height alignment of the two panels.

[0030] Step 4, Self-locking Fixing and Welding: Once the two panels are aligned at the correct height, the iron wedge, due to its 5° angled design, will self-lock and will not shift during welding. At this point, the butt joint can be welded directly through the welding holes on the mother plate. After the weld has cooled, loosen the nut of the positioning pin, pull out the positioning mandrel, and the iron wedge can be easily removed. The mother plate can then be dismantled, avoiding damage to the base material.

[0031] The foregoing description illustrates and describes preferred embodiments of the present invention. As previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A novel hull mounting plate, characterized in that: The system includes a mother plate (1) and an iron wedge (2). The mother plate includes a fixed end and an adjusting end. A welding hole is provided between the fixed end and the adjusting end. The adjusting end has a waist-shaped through hole that runs from top to bottom. A through positioning hole is provided at the top of the waist-shaped through hole. A matching positioning mandrel (6) is inserted into the waist-shaped through hole. Multiple round holes (7) corresponding to the positioning holes are provided along the length of the positioning mandrel. The positioning pin locks the position of the positioning mandrel in the waist-shaped through hole by passing through the positioning hole and the round holes. The bottom of the positioning mandrel is pivotally connected to a roller shaft (9). The axis of the roller shaft is set perpendicular to the long side of the waist-shaped section of the positioning mandrel. The lower end face of the iron wedge is set horizontally. The upper end face includes a slope surface (201) and a horizontal surface (202). A U-shaped groove (203) is provided at one end of the slope surface. The opening of the U-shaped groove is directly opposite the bottom of the positioning mandrel. The opening width of the U-shaped groove is adapted to the thickness of the positioning mandrel. The outer periphery of the roller is in contact with the slope surface under force.

2. A novel hull mounting plate according to claim 1, characterized in that: The slope extends obliquely along one end of the wedge, and the angle between the extended surface of the slope and the bottom surface of the wedge is 5° to 15°.

3. A novel hull mounting plate according to claim 1, characterized in that: The two ends of the positioning pin are locked and fixed by nuts (8).

4. A novel hull mounting plate according to claim 1, characterized in that: The handle (5) is fixedly attached to the fixed end of the motherboard.

5. A novel hull mounting plate according to claim 1, characterized in that: The fixed end of the mother plate is fixed on the reference panel (3), and the iron wedge is placed on the panel to be adjusted (4). The height of the calibration surface of the reference panel is lower than the height of the panel to be adjusted.

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