Glass steel shell opening combination tool and opening process

Abstract

The application discloses a kind of glass steel shell opening combination tool and opening process, wherein combination tool includes relatively independent arc-shaped support frame and straight support frame, arc-shaped support frame includes first support main body and two first side support bodies slidingly installed at both ends thereof, and the top of first side support body is further provided with arc-shaped support block with outer high and inner low, and the upper end face angle of arc-shaped support block can be matched with the arc surface of boat body shell;Straight support frame includes second support main body and two second side support bodies slidingly installed at both ends thereof, and the top of second side support body is horizontal support surface.The application has simple structure, effectively provides support operation for glass steel shell, reduces dependence on crane operation, solves the problem of waste caused by back and forth turning action for shell opening, and eliminates the falling safety hazard of small climbing operation.After using the above combination tool, the shell opening process is reconstructed, including positioning, opening and one-time painting steps, and the operation efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of tooling technology for opening the hull of a lifeboat, specifically to a fiberglass hull opening assembly tooling and opening process. Background Technology

[0002] After the existing fiberglass boat hull is pasted and molded, a topcoat needs to be applied, followed by opening. During the opening process, workers need to climb onto the hull to perform the opening work at a slight elevation. For the opening at the apex of the hull, the smooth surface has no anchor points, making it inaccessible to workers and posing a high risk of falling. After opening, a second coat of gel coat is required, which makes it easy for the topcoat to not be applied properly. Since there are no suitable tools to support the hull, a crane is needed to rotate the hull back and forth for the work, and then climb onto the hull to perform the opening work, resulting in wasted effort and failing to improve production efficiency. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a fiberglass shell opening assembly tooling and opening process.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a fiberglass shell opening assembly tooling, including an arc-shaped support frame and a straight support frame, which are relatively independent; the arc-shaped support frame includes a first support body and two first side support bodies disposed at both ends thereon, the left and right ends of the first support body are provided with a through sliding cavity, the two first side support bodies are respectively slidably inserted into the corresponding sliding cavity, and the top of the first support body is provided with an arc-shaped support block that is higher on the outside and lower on the inside, the angle of the upper end face of the arc-shaped support block can fit with the arc surface of the hull shell.

[0005] The flat support frame includes a second support body and two second side supports disposed at both ends of the second support body. The left and right ends of the second support body are provided with through sliding cavities of the second type. The two second side supports are slidably inserted into the corresponding sliding cavities of the second type, and their tops are horizontal support surfaces.

[0006] Furthermore, the front end of the first support body in the arc-shaped support frame is provided with at least two shaft holes that extend through its front and rear, with one shaft hole corresponding to one first side support body; a swing shaft is rotatably installed in each shaft hole, and a swing pawl is fixedly installed on the swing shaft; correspondingly, a sliding groove hole in the left and right length direction is opened on the first side support body, the sliding groove hole extends through its front and rear direction, and a ratchet rack adapted to the above-mentioned swing pawl is fixedly provided on the inner bottom surface of the sliding groove hole.

[0007] Furthermore, a torsion spring is fitted onto the swing shaft, with one end of the torsion spring fixed to the first support body; a swing handle is provided at one of the extended ends of the swing shaft; the swing shaft and the first support body are fixed together by a retaining spring.

[0008] Furthermore, both the first and second support bodies are equipped with adaptive support seats at their top ends, which are made of deformable rubber material.

[0009] Furthermore, a balance support plate is installed at the outer end of both the first side support and the second side support. The balance support plate is narrower at the top and wider at the bottom, and is inclined outward from its top to its bottom to form a sloping side.

[0010] Furthermore, a movable handle is fixedly installed on the outer end face of the balance support plate.

[0011] Furthermore, the structure of the second support body in the flat support frame is the same as that of the first support body. The second side support body also has sliding slots along its left-right length direction, extending through its front-back direction. A ratchet rack adapted to the aforementioned swing pawl is fixedly mounted on the inner bottom surface of the sliding slot.

[0012] A torsion spring is fitted onto the swing shaft inserted into the second support body, and one end of the torsion spring is fixed to the second support body.

[0013] Furthermore, both the arc-shaped support frame and the straight support frame have multiple anti-slip protrusions at their bottoms.

[0014] The technical solution of this invention also provides a fiberglass shell opening process, applied to the above-mentioned fiberglass shell opening assembly tooling, including the following process steps: Step one: Positioning. The fiberglass shell is lifted by a crane, so that the bridge in the shell is facing downwards. Then, the arc-shaped support frame and the straight support frame are placed below the fiberglass shell, with the straight support frame placed below the top of the bridge, its top surface fitting the top of the bridge in the shell. The arc-shaped support frame is placed at the arc-shaped section of the shell away from the bridge. The left and right positions of the first side support are adjusted so that the arc-shaped support block on it is in contact with the shell. Then, the fiberglass shell is lowered.

[0015] Step two, opening: the staff directly make openings in the fiberglass shell where needed on the ground.

[0016] Step 3: Apply a single coat of paint. After the above opening work is completed, apply a single coat of paint to the entire fiberglass shell to complete the overall work.

[0017] Furthermore, in step one, the first side support of the arc-shaped support frame can be pushed freely inward, while outward, it is blocked and limited by the engagement of the swinging pawl and the ratchet rack.

[0018] Compared with existing technologies, the present invention has the following advantages: The present invention has a simple structure, effectively provides support for the fiberglass shell, reduces reliance on crane operations, solves the problem of wasted movement during the shell opening process (requiring repeated turning), eliminates the risk of falls during low-altitude operations, provides a convenient opening operation method, and ensures safe production. The shell opening process is restructured using the above-mentioned combined tooling, saving the need for a second topcoat application and improving operational efficiency. Furthermore, the above-mentioned opening combined tooling is adaptable to various models of lifeboat hulls, can be reused, and increases resource utilization. Attached Figure Description

[0019] Figure 1 This is a diagram illustrating an existing shell opening operation scenario. Figure 2 This is a diagram illustrating the operation of opening the shell of the present invention. Figure 3 This is a schematic diagram of the overall structure of the arc-shaped support frame in this invention; Figure 4 for Figure 3 Bottom view of the arc-shaped support frame; Figure 5 for Figure 4 A cross-sectional view along the AA direction; Figure 6 This is a schematic diagram of the structure of the first supporting body in this invention; Figure 7 This is a schematic diagram of the structure of the first side support in this invention; Figure 8 This is a schematic diagram of the overall structure of the straight support frame in this invention; Figure 9 for Figure 8 A bottom view of the centrally aligned support frame; Figure 10 for Figure 9 A cross-sectional view along the BB direction; Figure 11 This is a schematic diagram of the structure of the second side support in this invention; In the diagram: 1. Shell, 2. Arc-shaped support frame, 3. Flat support frame, 4. Opening, 21. First support body, 22. First side support body, 23. Balance support plate, 24. Adaptive support seat, 25. Arc-shaped support block, 26. Moving handle, 27. Swing shaft, 28. Swing handle, 29. Snap ring, 210. First sliding cavity, 211. Shaft hole, 212. Sliding slot hole, 213. Ratchet, 214. Swinging pawl, 31. Second support body, 32. Second side support body, 33. Balance support plate. Detailed Implementation

[0020] It should be noted that in the description of this invention, terms such as "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "coaxial" and other terms indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings. They are only used to facilitate the description of the structural relationships of the components in this invention and do not specifically mean that any component in this invention must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limitations on this invention.

[0021] Furthermore, the use of terms such as "first" and "second" in the invention is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the invention. They are merely used to distinguish components or operations described using the same technical terms and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings: like Figure 2 As shown, a combination tooling for opening a fiberglass hull includes an arc-shaped support frame 2 and a straight support frame 3, which are set relatively independently and used together for supporting the opening of the fiberglass boat hull. Figures 3 to 5 As shown, the arc-shaped support frame 2 includes a first support body 21 and two identical first side support bodies 22 disposed at its left and right ends, combined with... Figure 6As shown, the first support body 21 is a square structure with two relatively parallel sliding cavities 210 at its left and right ends; the bottom end of the front face of the first support body 21 has two spaced shaft holes 211 that pass through the front and rear of the first support body 21.

[0024] Combination Figure 7 As shown, the first side support 22 has two sliding blocks at one end facing the first support body 21, which are adapted to the first sliding cavity 210. These sliding blocks can be inserted and slidably inserted into the corresponding first sliding cavity 210, allowing the first side support 22 to be slidably connected to the first support body 21. A balance support plate 23 is fixedly installed on the outer side of the first side support 22 away from the first support body 21. The balance support plate 23 is trapezoidal in shape, narrower at the top and wider at the bottom. A movable handle 26 is also fixedly installed on the outer end face of the balance support plate 23. An arc-shaped support block 25 is fixedly installed at the top of the first side support 22. The arc-shaped support block 25 is higher at the end near the balance support plate 23 and gradually decreases in height, creating a smooth transition. A sliding groove 212 extending along its left-right length direction is opened at the bottom of the front side of the first side support 22, penetrating its front-back width. Two sliding grooves 212 are formed on the two sliding blocks of the first side support 22. A ratchet 213 extending along its length direction is fixedly installed on the inner bottom surface of each sliding groove 212. When the first side support 22 is slidably inserted into the first support body 21, the sliding slot 212 corresponds to the shaft hole 211 on the first support body 21; a swing shaft 27 is rotatably installed in each shaft hole 211, and the swing shaft 27 is installed through and fixed to the first support body 21 by a retaining spring 29 to prevent it from falling off; combined with Figure 5 As shown, two swing pawls 214 are fixedly installed on the outer periphery of the swing shaft 27, which can engage with the ratchet rack 213 on the first side support 22. At the same time, a torsion spring (not shown in the figure) is also fitted on the swing shaft 27. One end of the torsion spring is fixed to the swing shaft 27, and the other end is fixed to the first support body 21. It is used to limit the rotation direction of the swing shaft 27, so that when the swing pawls 214 on it engage with the ratchet rack 213, it can achieve free sliding in one direction (inward direction). A swing handle 28 is also fixedly installed on one of the extended ends of the swing shaft 27, which is perpendicular to it, so that the operator can twist the swing shaft 27.

[0025] An adaptive support seat 24 is fixedly installed at the top of the first support body 21. The adaptive support seat 24 is made of elastic rubber material and can deform under pressure. The arc-shaped support block 25 at the top of the first side support body 22 is also equipped with anti-slip pads. The bottom surface of the arc-shaped support frame 2 is also provided with several anti-slip protrusions to increase the friction with the ground and prevent displacement during use.

[0026] In a further optimization, the aforementioned balance support plate 23 is inclined outward from its top to its bottom to form a sloping side, thereby increasing the support area and improving its stability.

[0027] Combination Figures 8 to 10 As shown, the flat support frame 3 includes a second support body 31 and two identical second side support bodies 32 disposed at its left and right ends. The structural features of the second support body 31 are the same as the overall structure of the first support body 21, but its height can be adjusted according to the actual application scenario. The structural configuration of the second side support body 32 is similar to that of the first side support body 22. Figure 11 As shown, the second side support 32 has two relatively spaced sliding blocks at one end facing the second support body 31. These sliding blocks can be slidably inserted into the second sliding cavity on the second support body 31, so that the second side support 32 is slidably connected to the second support body 31. The second side support 32 away from the second support body 31 is also fixedly installed with a balance support plate 33. The balance support plate 33 is trapezoidal with a narrow top and a wide bottom. A movable handle 26 is fixedly installed on the outer end face of the balance support plate 33. The top of the second side support 32 is flat and flush with the top surface of the second support body 31. The bottom of the front side of the second side support 32 is also provided with a sliding slot 212. A ratchet 213 along its length is fixedly installed on the inner bottom surface of each sliding slot 212. When the second side support 32 is slidably inserted into the second support body 31, the sliding slot 212 corresponds to the shaft hole on the second support body 31. A swing shaft 27 is rotatably installed in each shaft hole, and each swing shaft 27 corresponds to one side of the second side support 32. Figure 10 As shown, a swing pawl 214 is also fixedly provided on the swing shaft 27, which can engage with the ratchet rack 213 on the second side support 32.

[0028] Both the second support body 31 and the second side support body 32 are fixedly mounted with adaptive support seats 24 at their top ends. These adaptive support seats 24 are also made of deformable elastic rubber material. The bottom surface of the flat support frame 3 is also provided with several anti-slip protrusions to increase the friction with the ground and prevent displacement during use.

[0029] Furthermore, in the aforementioned arc-shaped support frame 2, the front side wall of the first side support 22 is also provided with a convex slider in the left-right horizontal direction. Correspondingly, the first support body 21 is provided with a matching horizontal groove. The convex slider can be slidably installed in the horizontal groove, improving the sliding stability between the first side support 22 and the first support body 21. Similarly, in the aforementioned straight support frame 3, the front side wall of the second side support 32 is also provided with a convex slider in the left-right horizontal direction. Correspondingly, the second support body 31 is provided with a matching horizontal groove. The convex slider is slidably installed in the horizontal groove of the second support body 31, improving the sliding stability between the two and playing a certain guiding role.

[0030] Both the aforementioned arc-shaped support frame 2 and straight support frame 3 can be assembled and processed using wooden techniques, making them lightweight and easy to move; at the same time, they have multiple evenly distributed support plates inside to improve the overall support strength.

[0031] In practical use, a fiberglass shell opening process is involved, which is applied to the aforementioned fiberglass shell opening assembly tooling and includes the following process steps: Step 1, Positioning. First, the fiberglass shell to be opened is lifted by a crane, so that the top surface of the shell 1 facing down is facing the bridge. Then, the operators place the aforementioned curved support frame 2 and straight support frame 3 below the lifted fiberglass shell, referring to... Figure 2 As shown, the straight support frame 3 is placed directly below the top of the boat's bridge, and its horizontal top surface perfectly matches the top of the boat's bridge in the hull 1, stably supporting the top of the boat's bridge in the hull 1; the arc-shaped support frame 2 is placed at the arc-shaped section of the hull 1 away from the boat's bridge. Then, the operator can adjust the left and right extension positions of the first side support body 22 so that the upper arc angle of the arc-shaped support block 25 in the arc-shaped support frame 2 fits with the arc surface of the boat's outer shell. Then, the entire fiberglass shell is lowered, and the arc-shaped support frame 2 and the straight support frame 3 complete the support operation.

[0032] Step two, opening. Workers can then stand directly on the ground to make the opening at point 4 of the fiberglass shell, without needing to climb to a height.

[0033] Step 3, one coat of paint. After all the openings (4) mentioned above have been completed, the entire fiberglass shell can be painted once to complete the overall work.

[0034] Furthermore, due to the engagement of the swing pawl 214 and the ratchet 213, the first side support 22 of the arc-shaped support frame 2 in step one can only be pushed freely inward, completing the adjustment of the left and right distance to fit the outer arc surface of the housing 1. The outward movement of the first side support 22 is blocked and limited by the engagement of the swing pawl 214 and the ratchet 213, preventing it from sliding outward under pressure and causing the housing 1 to tilt. When the first side support 22 needs to be pulled outward, the operator needs to swing the swing handle 28 to rotate the swing shaft 27, thereby causing the swing pawl 214 to disengage from the ratchet 213, thus pulling the first side support 22 outward. Similarly, the adjustment of the second side support 32 in the straight support frame 3 is as described above.

[0035] The above-mentioned fiberglass shell opening process can be achieved in just three steps. Compared with the original production process (painting, opening, flipping, opening again, and second painting), the process is simplified and the quality is reliable. Through the above-mentioned combination of tooling and process, the passive mode of "shell adapting to people" is transformed into an active mode of "tooling adapting to process". This eliminates the safety hazards caused by flipping the shell, and allows the opening and topcoat to be completed in one step. The average topcoat loss is reduced by about 15%, avoiding defects from secondary construction, shortening the operation cycle by 40%, and improving production efficiency.

[0036] Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A fiberglass shell opening assembly tooling, characterized in that: It includes an arc-shaped support frame and a straight support frame, which are relatively independent; the arc-shaped support frame includes a first support body and two first side support bodies disposed at both ends of it. The left and right ends of the first support body are provided with a through sliding cavity No.

1. The two first side support bodies are respectively slidably inserted into the corresponding sliding cavity No.

1. The top of the first support body is provided with an arc-shaped support block that is higher on the outside and lower on the inside. The angle of the upper end face of the arc-shaped support block can fit with the arc surface of the hull. The flat support frame includes a second support body and two second side supports disposed at both ends of the second support body. The left and right ends of the second support body are provided with through sliding cavities of the second type. The two second side supports are slidably inserted into the corresponding sliding cavities of the second type, and their tops are horizontal support surfaces.

2. The fiberglass shell opening assembly tooling according to claim 1, characterized in that: The front end of the first support body in the arc-shaped support frame is provided with at least two shaft holes that extend through it from front to back, with one shaft hole corresponding to one first side support body; a swing shaft is rotatably installed in each shaft hole, and a swing pawl is fixedly installed on the swing shaft; correspondingly, a sliding groove hole in the left-right length direction is opened on the first side support body, and the sliding groove hole extends through it from front to back, with a ratchet rack adapted to the swing pawl fixedly installed on the inner bottom surface of the sliding groove hole.

3. The fiberglass shell opening assembly tooling according to claim 2, characterized in that: A torsion spring is fitted onto the swing shaft, and one end of the torsion spring is fixed to the first support body; a swing handle is provided at one end of the swing shaft; the swing shaft and the first support body are fixed together by a retaining spring.

4. The fiberglass shell opening assembly tooling according to claim 1, characterized in that: Both the first and second support bodies are equipped with adaptive support seats at their top ends, which are made of deformable rubber material.

5. The fiberglass shell opening assembly tooling according to claim 1, characterized in that: The outer ends of the first side support and the second side support are each equipped with a balance support plate. The balance support plate is narrower at the top and wider at the bottom, and is inclined outward from its top to its bottom to form a sloping side.

6. The fiberglass shell opening assembly tooling according to claim 5, characterized in that: A movable handle is fixedly installed on the outer end face of the balance support plate.

7. The fiberglass shell opening assembly tooling according to claim 2, characterized in that: The structure of the second support body in the flat support frame is the same as that of the first support body; the second side support body is also provided with a sliding groove in the left and right length direction, the sliding groove extends through the front and back direction, and a ratchet rack adapted to the swing pawl is fixed on the inner bottom surface of the sliding groove. A torsion spring is fitted onto the swing shaft inserted into the second support body, and one end of the torsion spring is fixed to the second support body.

8. The fiberglass shell opening assembly tooling according to claim 1, characterized in that: Both the arc-shaped support frame and the straight support frame have multiple anti-slip protrusions at their bottoms.

9. A fiberglass shell opening process, applied to the fiberglass shell opening assembly tooling according to any one of claims 1 to 8, characterized in that, The process includes the following steps: Step 1: Positioning. The fiberglass shell is lifted by a crane, so that the bridge is facing downwards. Then, the curved support frame and the straight support frame are placed below the fiberglass shell, with the straight support frame positioned below the top of the bridge, its top surface fitting the top of the bridge. The curved support frame is positioned on the curved section of the shell away from the bridge. The left and right positions of the first side support are adjusted so that the curved support block on it is in contact with the shell. Then, the fiberglass shell is lowered. Step two, making openings: the workers make the necessary openings in the fiberglass shell directly on the ground. Step 3: Apply a single coat of paint. After the above opening work is completed, apply a single coat of paint to the entire fiberglass shell to complete the overall work.

10. The fiberglass shell opening process according to claim 9, characterized in that: In step one, the first side support of the arc-shaped support frame can be pushed freely inward, while the outward movement is blocked and limited by the engagement of the swinging pawl and the ratchet rack.

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