A reusable surface tube structure for the lower mold of a single-curved honeycomb panel

Abstract

This utility model discloses a reusable surface tube structure for a single-curved honeycomb panel lower mold, including a lower mold grid, multiple round tubes laid flat on the lower mold grid, and a limiting and fixing device. The round tubes are naturally and tightly arranged by gravity to form the working surface of the lower mold; the limiting and fixing device is set at the first and second ends of the lower mold grid to prevent the round tubes from slipping or shifting. In use, the honeycomb panel is placed on the lower mold working surface and vacuum-formed into a single-curved structure. This structure can reduce material costs, extend the service life of the lower mold, improve production efficiency, and has the advantages of energy saving and environmental protection, making it suitable for mass production of single-curved honeycomb panels.

Description

Technical Field

[0001] This utility model relates to the field of single-curved honeycomb panel manufacturing technology, and in particular to a reusable surface layer circular tube structure for the lower mold of a single-curved honeycomb panel. Background Technology

[0002] Honeycomb panels are widely used in aerospace, building decoration, transportation and other fields due to their light weight, high strength and good sound and heat insulation properties. In the molding and processing of honeycomb panels, especially the composite molding of single-curved honeycomb panels, a lower mold is required as a supporting base to ensure the molding accuracy and appearance quality of the product.

[0003] In existing technologies, the lower mold surface layer is typically machined from a single 3mm thick aluminum sheet. This structure has the following drawbacks:

[0004] High material costs: Aluminum plates require high processing precision, resulting in high processing costs and material expenses; Limited lifespan: In high-frequency production, aluminum plates are prone to deformation due to long-term pressure, affecting forming accuracy; Inconvenient maintenance and replacement: Replacing the entire aluminum plate requires complete disassembly and processing, which is time-consuming and labor-intensive; Limited production efficiency: When the specifications or curvature of the honeycomb panel change, the entire surface aluminum plate needs to be reprocessed, affecting the production rhythm.

[0005] Therefore, the existing single-curved honeycomb panel lower mold has obvious shortcomings in terms of material utilization, reusability, and maintenance efficiency, and there is an urgent need for a lower mold surface layer solution that is simple in structure, reusable, and has low processing cost. Utility Model Content

[0006] The purpose of this invention is to provide a reusable surface tube structure for the lower mold of a single-curved honeycomb panel, thereby reducing material costs, extending the service life of the lower mold, and improving the production efficiency of honeycomb panel composites.

[0007] This utility model is achieved by the following technical solution: a reusable surface layer circular tube structure for a single-curved honeycomb panel lower mold, characterized in that it includes a lower mold grid for supporting the surface layer circular tube; multiple circular tubes are laid flat on the upper surface of the lower mold grid, and the circular tubes are naturally and closely arranged by gravity to form the working surface of the lower mold; a limiting and fixing device is set at the first and last ends of the lower mold grid to prevent the circular tubes from slipping or shifting.

[0008] Furthermore, the outer diameter of the circular tube is φ10mm and the wall thickness is 3.0mm.

[0009] Furthermore, the limiting and fixing device includes an L-shaped aluminum angle bracket fixed to the lower mold grid by spot welding, and the L-shaped aluminum angle bracket has a specification of 25mm×25mm×40mm.

[0010] Furthermore, in the L-shaped aluminum angle bracket, the first L-shaped aluminum angle bracket is used to block the axial movement of the first round tube, and the last L-shaped aluminum angle bracket is used to block the axial movement of the last round tube.

[0011] Furthermore, the lower mold grid is a grid-shaped metal support structure.

[0012] Furthermore, it also includes a honeycomb panel placed on the circular tube, the honeycomb panel including a honeycomb back plate, a honeycomb core and a honeycomb front plate, the honeycomb core being sandwiched between the honeycomb back plate and the honeycomb front plate.

[0013] Furthermore, the honeycomb panel is bonded to the working surface of the lower mold formed by the circular tube through a vacuum composite process to form a single-curved surface shape.

[0014] The reusable surface tube structure of the lower mold of the single-curved honeycomb panel described in this utility model has the following advantages:

[0015] The surface layer round tubes are detachable and replaceable, extending the service life of the lower mold; reducing the amount of aluminum plate used, lowering metal processing energy consumption, and reducing waste generation; using round tubes instead of integral aluminum plates results in lower material and processing costs; the round tubes are quick to lay and replace, and can be quickly adapted to the production needs of honeycomb panels with different specifications and curvatures; the round tubes arranged by gravity combined with L-shaped aluminum corner brackets for positioning ensures both arrangement stability and simplifies the installation process; different types of honeycomb panel composite processes can be adapted by adjusting the specifications of the round tubes and the grid structure of the lower mold. Attached Figure Description

[0016] 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. 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 the structures shown in these drawings without creative effort.

[0017] Figure 1 A schematic diagram of a reusable surface tube structure for a single-curved honeycomb panel lower mold;

[0018] Figure 2 This is a partial schematic diagram of a circular tube structure;

[0019] In the diagram, 1-circular tube, 2-honeycomb panel, 21-honeycomb back panel, 22-honeycomb core, 23-honeycomb panel, 3-lower mold grid. Detailed Implementation

[0020] 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, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. Example

[0022] like Figure 1 As shown, a reusable surface tube structure for a single-curved honeycomb panel lower mold includes a lower mold grid 3, several seamless steel tubes 1 laid on the lower mold grid 3, and a limiting and fixing device.

[0023] Specifically, the lower mold grid 3 is a supporting frame structure used to support the surface layer round tube 1 and maintain its overall stability. Several seamless steel round tubes 1 are laid flat on the upper surface of the lower mold grid 3. The outer diameter of the seamless steel round tubes 1 is φ10mm and the wall thickness is 3.0mm. They are naturally and closely arranged with each other by their own gravity to form the working surface of the lower mold, which is used to support the honeycomb panel 2 to be composited.

[0024] The honeycomb panel 2 consists of three parts: a honeycomb back panel 21, a honeycomb core 22, and a honeycomb front panel 23. The honeycomb core 22 is sandwiched between the honeycomb back panel 21 and the honeycomb front panel 23, and is bonded to the surface tube 1 to form an arc-shaped surface through a vacuum composite process.

[0025] The limiting and fixing device includes L-shaped aluminum angle brackets installed at the first and last ends of the lower mold grid 3. The L-shaped aluminum angle brackets have a specification of 25mm×25mm×40mm and are fixed to the top of the lower mold grid 3 by spot welding. The first L-shaped aluminum angle bracket is used to block the axial movement of the first seamless steel round tube 1, and the last L-shaped aluminum angle bracket is used to block the axial movement of the last seamless steel round tube 1, thereby preventing the round tube 1 from slipping or shifting during the production process.

[0026] During use, the honeycomb panel 2 to be composited into a single curved surface is placed on the working surface of the lower mold composed of round tubes 1, and the honeycomb panel 2 is composited by vacuuming. After the composite is completed, the seamless steel round tubes 1 can be removed, cleaned and reused, which reduces material consumption and production costs. At the same time, the quick replacement of the round tube arrangement can improve the composite production efficiency of the honeycomb panel.

[0027] The above embodiments describe the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Modifications and variations made by those skilled in the art without departing from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A single curved honeycomb panel reusable skin round tube structure, characterized by, Includes a lower mold grid (3) for supporting the surface layer round tubes; multiple round tubes (1) are laid flat on the upper surface of the lower mold grid (3), and the round tubes (1) are naturally and closely arranged by gravity to form the working surface of the lower mold; a limiting and fixing device is set at the first and last ends of the lower mold grid (3) to prevent the round tubes (1) from slipping or shifting.

2. The reusable surface tube structure of a single-curved honeycomb panel lower mold according to claim 1, characterized in that, The outer diameter of the circular tube (1) is φ10mm and the wall thickness is 3.0mm.

3. The reusable surface tube structure of a single-curved honeycomb panel lower mold according to claim 1, characterized in that, The limiting and fixing device includes an L-shaped aluminum angle bracket fixed to the lower mold grid (3) by spot welding. The L-shaped aluminum angle bracket has a specification of 25mm×25mm×40mm.

4. The reusable surface circular tube structure of the lower mold of a single-curved honeycomb panel according to claim 3, characterized in that, In the L-shaped aluminum angle bracket, the first L-shaped aluminum angle bracket is used to block the axial movement of the first round tube (1), and the last L-shaped aluminum angle bracket is used to block the axial movement of the last round tube (1).

5. The reusable surface tube structure of a single-curved honeycomb panel lower mold according to claim 1, characterized in that, The lower mold grid (3) is a grid-shaped metal support structure.

6. The reusable surface tube structure of the lower mold of a single-curved honeycomb panel according to claim 1, characterized in that, It also includes a honeycomb panel (2) placed on the round tube (1), the honeycomb panel (2) including a honeycomb back plate (21), a honeycomb core (22) and a honeycomb panel (23), the honeycomb core (22) being sandwiched between the honeycomb back plate (21) and the honeycomb panel (23).

7. The reusable surface circular tube structure of the lower mold of a single-curved honeycomb panel according to claim 6, characterized in that, The honeycomb panel (2) is bonded to the working surface of the lower mold formed by the circular tube (1) through a vacuum composite process to form a single curved surface shape.

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