Composite material hull main engine base foam positioning tool

Abstract

The utility model discloses a composite material hull main engine seat foam positioning tool which comprises a positioning base, the positioning base comprises a positioning flat plate and at least two guide rods, a positioning portion is fixed at one end of the positioning flat plate in the front-back direction, a positioning sinking groove is formed in the positioning flat plate, and guide grooves are formed in the guide rods. Limiting rods are detachably connected to the multiple guide rods, and limiting grooves for limiting front-back displacement of the hull main engine base foam are formed between the positioning parts and the limiting rods. The positioning tool is simple in structure, the base foam can be conveniently installed and positioned through the positioning tool, the positioning efficiency is high, and operation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of composite material molding technology, and in particular to a foam positioning tool for a composite material ship hull main engine seat. Background Technology

[0002] The main engine mount is a crucial component of a ship's propulsion system. Its installation accuracy directly affects the alignment of the main engine and drive shaft, thus influencing propeller drive efficiency and the main engine's overall performance. For composite hulls, the installation accuracy of the main engine mount depends to some extent on the installation of the core foam. Typically, a set of base foams must be placed in specific positions, maintaining a certain spacing between foams, and having their upper surfaces at the same height. Simultaneously, the bottom surface of the main engine mount usually conforms to the streamlined shape of the hull. This necessitates ensuring the lower surface of the base foam adheres to the hull while maintaining positional accuracy. Ensuring proper foam adhesion allows for machining and adjustments, undoubtedly increasing the difficulty of foam installation. Current composite hull molding technology lacks positioning fixtures for the main engine mount foam. Positioning the foam manually based on experience requires repeated measurements and confirmations, making the installation accuracy susceptible to variations in operator skill levels and resulting in low construction efficiency. Utility Model Content

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0004] In view of the above and / or existing problems in the installation and positioning of foam for ship engine mounts, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a foam positioning tool for the main engine base of a composite material ship hull. This utility model uses the positioning tool to accurately position the base foam, which has high positioning efficiency and is easy to operate.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a composite material ship hull main engine base foam positioning fixture, including a positioning base, the positioning base including a positioning plate and at least two guide rods, a positioning part fixed at one end of the positioning plate in the front-rear direction, a positioning groove opened on the positioning plate, a guide groove opened on the guide rods, and a limiting rod detachably connected to several guide rods, and a limiting groove is formed between the positioning part and the limiting rod to limit the front-rear displacement of the ship hull main engine base foam.

[0007] As a preferred embodiment of the composite material ship hull main engine base foam positioning tooling in this utility model, it further includes several sets of clamping units that correspond one-to-one with the composite material base foam. Each clamping unit includes two clamping members, each clamping member including a horizontal connecting plate. One end of the horizontal connecting plate in the left-right direction is fixed with a clamping plate, and the horizontal connecting plate is detachably connected to the positioning plate.

[0008] As a preferred embodiment of the composite material ship hull main engine base foam positioning fixture in this utility model, wherein: the horizontal connecting plate has threaded holes, and the clamping unit also includes clamping screws corresponding to the threaded holes one by one. The clamping screws are connected to the horizontal connecting plate through the threaded holes. Tightening elements are threadedly connected to the clamping screws above and below the positioning plate. After the two clamping plates clamp the composite material base foam, the upper and lower tightening elements press the horizontal connecting plate onto the positioning plate.

[0009] As a preferred embodiment of the composite material ship hull main engine seat foam positioning tooling in this utility model, wherein: the limiting rod has a positioning groove, the guide rod is inserted into the limiting rod through the positioning groove, and the guide rod is detachably connected to the limiting rod.

[0010] As a preferred embodiment of the composite material ship hull main engine seat foam positioning fixture of this utility model, wherein: the limiting rod at the positioning sink is provided with a connecting screw hole, the limiting rod is threadedly connected to a connecting screw rod through the connecting screw hole, and the connecting screw rods on the side of the guide rod away from the limiting rod in the height direction and the side of the limiting rod away from the guide rod in the height direction are respectively threaded with connecting parts. After the position of the guide rod in the front-back direction is adjusted, the connecting parts are tightened so that the upper and lower connecting parts fix the limiting rod and the guide rod together.

[0011] As a preferred embodiment of the composite material ship hull main engine seat foam positioning tooling in this utility model, wherein: the positioning plate has several weight reduction holes.

[0012] Compared with the prior art, this utility model has the following technical effects: the structure is simple and reasonable, it can realize the limitation of the base foam in six directions (front, back, up, down, left, and right), the operation is convenient, the installation accuracy is improved, and time and labor are saved; it can be applied to the positioning and installation of composite material ship hull main engine base foam. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0014] Figure 1 This is a top view of the present invention installed on the hull.

[0015] Figure 2 The three-dimensional structure of this utility model Figure 1 .

[0016] Figure 3 The three-dimensional structure of this utility model Figure 2 .

[0017] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle.

[0018] Figure 5 The three-dimensional structure of this utility model Figure 3 .

[0019] Figure 6 for Figure 5 A magnified view of a section at point B.

[0020] In the diagram: 100 Main unit base foam, 200 Positioning base, 201 Positioning part, 202 Positioning plate, 202-1 Weight reduction hole, 300 Guide rod, 301 Guide groove, 400 Hull, 500 Tightening part, 600 Clamping part, 601 Horizontal connecting plate, 602 Clamping plate, 700 Connecting screw, 800 Connecting part, 900 Lifting lug, 1000 Clamping screw, 2000 Limiting rod, 2001 Positioning sinker, 3000 Fixing bolt. Detailed Implementation

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0024] Example 1

[0025] Reference Figures 1-4This is the first embodiment of the present invention. This embodiment provides a composite material ship hull main engine base foam positioning tool, which has a simple structure and facilitates the positioning and installation of the main engine base foam 100.

[0026] A composite material ship hull main engine base foam positioning fixture includes a positioning base 200 and several clamping units corresponding one-to-one with the composite material main engine base foam 100. The positioning base 200 includes a positioning plate 202 and at least two guide rods 300. In this embodiment, the guide rods 300 are preferably welded to the positioning plate 202. A positioning part 201 is fixed at one end of the positioning plate 202 in the front-rear direction. A positioning groove 2001 is formed on the positioning plate 202, and a guide groove 301 is formed on the guide rods 300. A limiting rod 2000 is detachably connected to the guide rod 300. A limiting groove is formed between the positioning part 201 and the limiting rod 2000 to limit the forward and backward displacement of the main engine base foam 100 of the hull 400. The clamping unit includes two clamping parts 600. The clamping part 600 includes a horizontal connecting plate 601. A clamping plate 602 is fixed to one end of the horizontal connecting plate 601 in the left and right direction. The horizontal connecting plate 601 is detachably connected to the positioning plate 202. At least two lifting lugs 900 are fixedly connected to the upper side of the positioning plate 202.

[0027] When installing the main body foam 100 onto the positioning fixture, first invert the entire application, including the main body foam 100, so that the top boss of the main body foam 100 faces downwards; the height of the upper surface of several composite material main body foams 100 is ensured by the positioning base 200, achieving accurate positioning in the height direction of the base; the front-to-back distance of the main body foam 100 is determined by the positioning part 201, with the front side of the top boss of the foam abutting against the rear side of the positioning part 201; move the limiting rod 2000 to the rear side of the boss, clamping the boss of the foam between the limiting rod 2000 and the positioning part 201, achieving positioning of the main body foam 100 in the front-to-back direction; connect several sets of foams corresponding one-to-one with the main body foam 100 on the positioning plate 202. The clamping unit adjusts the position of each clamping unit. The two clamping parts 600 in each clamping unit clamp the left and right ends of the main body base foam 100 to achieve the left and right positioning of the main body base foam 100. The installed foam and tooling are inverted as a whole, with the boss on the top of the main body base foam 100 facing upwards. The application is hoisted onto the gantry crane using the lifting lug 900. The gantry crane is used to transfer the application to the inside of the hull. The front-to-back distance between the main body base foam 100 and the stern sealing plate and the left and right distance between the main body base foam 100 and the ship's side are determined. The guide rod 300 is supported inside the hull 400 to stabilize the positioning plate 202. The main body base foam 100 is fixed inside the hull 400 by hand lay-up with epoxy resin and fiber cloth. After the resin cures, the positioning tooling can be removed.

[0028] Example 2

[0029] Reference Figures 2-4 This embodiment provides a composite material ship hull main engine seat foam positioning tool, which differs from Embodiment 2 in that it can further facilitate the connection of the clamping unit and the positioning plate 202 as well as the connection of the limiting rod 2000 and the guide plate.

[0030] Specifically, the horizontal connecting plate 601 has threaded holes, and the clamping unit also includes clamping screws 1000 corresponding to the threaded holes. The clamping screws 1000 are connected to the horizontal connecting plate 601 through the threaded holes. The clamping screws 1000 above and below the positioning plate 202 are threaded with tightening parts 500. After the two clamping plates 602 clamp the composite material main body foam 100, the upper and lower tightening parts 500 press the horizontal connecting plate 601 onto the positioning plate 202.

[0031] When installing the clamping unit, place the horizontal connecting plate 601 on the horizontal connecting plate 601. Adjust the position of each horizontal connecting plate 601 according to the position of each main unit foam 100 in the left and right direction. The clamping plates 602 in each clamping unit are positioned opposite each other in the left and right direction and abut against the main unit foam 100. Rotate the tightening member 500 on the clamping screw 1000 so that the upper and lower tightening members 500 fix the horizontal connecting plate 601 on the positioning plate 202, thereby achieving the positioning of the main unit foam 100 in the left and right direction.

[0032] Specifically, the limiting rod 2000 has a positioning groove 2001, and the guide rod 300 is inserted into the limiting rod 2000 through the positioning groove 2001. The guide rod 300 is detachably connected to the limiting rod 2000. The detachable structure is as follows: the limiting rod 2000 at the positioning groove 2001 has a connecting screw hole, and the limiting rod 2000 is threadedly connected to the connecting screw 700 through the connecting screw hole. Connecting parts 800 are threadedly connected to the connecting screw 700 on the side of the guide rod 300 away from the limiting rod 2000 in the height direction and on the side of the limiting rod 2000 away from the guide rod 300 in the height direction, respectively. After the position of the guide rod 300 in the front-back direction is adjusted, the connecting parts 800 are tightened so that the upper and lower connecting parts 800 fix the limiting rod 2000 and the guide rod 300 together.

[0033] When installing the guide rod 300 and the limit rod 2000, screw in the connector 800 above the guide rod 300 and the connector 800 below the limit rod 2000, so that the two connectors 800 are pressed tightly on the guide rod 300 and the limit rod 2000 respectively, thus connecting the guide rod 300 and the limit rod 2000. The installation is convenient. Adjust the position of the guide rod 300 in the front-back direction by pulling the connecting screw 700, and the limit rod 2000 abuts against the rear side of the main unit base foam 100.

[0034] In this application, both the connector 800 and the tightening component 500 are preferably nuts.

[0035] Example 3

[0036] Reference Figure 2 This embodiment provides a composite material hull main engine seat foam positioning tool, which differs from Embodiment 1 or 2 in that it can further reduce the overall weight of this application.

[0037] Specifically, the positioning plate 202 has several weight reduction holes 2021.

[0038] The overall weight of the positioning base 200 is reduced by setting several weight-reducing holes 2021.

[0039] Example 4

[0040] Reference Figure 5 and Figure 6 This embodiment provides a composite material ship hull main engine base foam positioning tool, which differs from embodiments 1 to 3 in that it can further facilitate the connection between the guide rod 300 and the positioning plate 202.

[0041] Specifically, the guide rod 300 has at least one connecting hole. In this embodiment, the guide rod 300 has two connecting holes, and the positioning plate 202 has two fixing holes that correspond one-to-one with the connecting holes.

[0042] When installing the guide rod 300, place the guide rod 300 on the positioning plate 202, adjust the position of the guide rod 300 so that the connecting hole is aligned with the corresponding fixing hole, and use the fixing bolt 3000 to screw into the connecting hole and the fixing hole in sequence to fix the guide rod 300 on the positioning plate 202. After the main body foam 100 is installed, loosen the fixing bolt 3000 and remove the guide rod 300 from the positioning plate 202 for easy storage of the positioning fixture later.

[0043] The directions mentioned in this application are based on the top view. The direction that is parallel to the paper and vertical is the front-back direction, the direction that is vertically downward is the front, and the opposite direction is the back. The left-right direction is also parallel to the paper and perpendicular to the front-back direction. The direction that is perpendicular to the paper is the height direction.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A composite material ship hull main engine base foam positioning fixture, characterized in that: The device includes a positioning base, which comprises a positioning plate and at least two guide rods. A positioning part is fixed at one end of the positioning plate in the front-rear direction. A positioning groove is formed on the positioning plate, and a guide groove is formed on the guide rods. Limiting rods are detachably connected to several guide rods. A limiting groove is formed between the positioning part and the limiting rods to limit the front-rear displacement of the main engine base foam of the hull.

2. The composite material hull main engine seat foam positioning fixture as described in claim 1, characterized in that: It also includes several sets of clamping units that correspond one-to-one with the composite material base foam. Each clamping unit includes two clamping members, each clamping member including a horizontal connecting plate. One end of the horizontal connecting plate in the left-right direction is fixed with a clamping plate, and the horizontal connecting plate is detachably connected to the positioning plate.

3. The composite material hull main engine seat foam positioning fixture as described in claim 2, characterized in that: The horizontal connecting plate has threaded holes, and the clamping unit also includes clamping screws that correspond one-to-one with the threaded holes. The clamping screws are connected to the horizontal connecting plate through the threaded holes. Tightening parts are threadedly connected to the clamping screws above and below the positioning plate. After the two clamping plates clamp the composite material base foam, the upper and lower tightening parts press the horizontal connecting plate onto the positioning plate.

4. The composite material hull main engine seat foam positioning fixture as described in any one of claims 1 to 3, characterized in that: The limiting rod has a positioning groove, and the guide rod is inserted into the limiting rod through the positioning groove. The guide rod is detachably connected to the limiting rod.

5. The composite material hull main engine seat foam positioning fixture as described in claim 4, characterized in that: The limiting rod at the positioning groove has a connecting screw hole, and the limiting rod is threadedly connected to the connecting screw rod through the connecting screw hole. Connecting parts are threadedly connected to the connecting screw rods on the side of the guide rod away from the limiting rod in the height direction and the side of the limiting rod away from the guide rod in the height direction, respectively. After the position of the guide rod in the front-back direction is adjusted, the connecting parts are tightened so that the upper and lower connecting parts fix the limiting rod and the guide rod together.

6. The composite material hull main engine seat foam positioning fixture as described in any one of claims 1 to 3, characterized in that: The positioning plate has several weight-reduction holes.

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