Aluminum forming tool for aircraft interior parts with reduced damage to the structure upon stripping

Abstract

This utility model discloses a molding fixture for aluminum interior parts of aviation applications with a structure that reduces damage during demolding. It includes at least two fixture blocks, block one and block two, which are joined together with mating surfaces to close their respective forming surfaces. A countersunk platform is formed on the mating surface of block one, and a pad is placed within the countersunk platform. The upper surface of the pad is no higher than the mating surface of block one. A longitudinal edge surface is formed on block two at the location of the pad. A groove is formed on block two from the mating surface and the longitudinal edge surface. During demolding, a hook at the front end of a demolding tool is inserted into the groove, with the bottom of the hook contacting the pad as a fulcrum and the front end of the hook facing the bottom of the groove. By swinging the demolding tool, the front end of the hook lifts block two and separates it from block one. The demolding tool, inserted into the groove, acts between the pad and the bottom surface of the groove to demold the two blocks without damaging the surface of the aluminum fixture, thus effectively protecting the aluminum fixture.

Description

Technical Field

[0001] This application relates to aluminum molding tooling for aircraft interior parts, and more particularly to an aluminum molding tooling for aircraft interior parts with a structure that reduces damage during demolding. Background Technology

[0002] Interior components for aircraft and other aviation products often require segmented molding fixtures to meet the requirements for molding and demolding due to their complex structure. However, some materials in these components contain phenolic resin, which can cause corrosion when using steel fixtures, hindering mass production. Therefore, aluminum fixtures are typically used for segmented molding. During the molding process, resin from the material can seep into the gaps between the segmented fixtures, causing them to stick together and making demolding difficult. Aluminum fixtures are relatively soft, and using metal tools to disassemble them can damage their surface, even causing deformation and interference with the segments. This results in low disassembly efficiency, difficulty in subsequent installation and positioning, significantly reduced production efficiency, increased maintenance and repair costs, and a shorter lifespan for the fixtures. Utility Model Content

[0003] Purpose of this utility model: The purpose of this application is to provide a tooling for molding aluminum interior parts for aviation, with a structure designed to reduce damage during demolding.

[0004] Technical Solution: A molding fixture for aluminum interior parts of aircraft with a structure that reduces damage during demolding includes at least two fixture blocks, namely Block 1 and Block 2. Block 1 and Block 2 are joined together with mating surfaces to close their respective molding surfaces. A countersunk platform is formed on the mating surface of Block 1, and a pad is placed inside the countersunk platform. The upper surface of the pad is not higher than the mating surface of Block 1. A longitudinal edge surface is formed on Block 2 at the position of the pad. A groove is formed on Block 2 from the mating surface and the longitudinal edge surface. During demolding, the hook at the front end of the demolding tool is inserted into the groove. The bottom of the hook contacts the pad as a fulcrum, and the front end of the hook faces the bottom surface of the groove. By swinging the demolding tool, the front end of the hook lifts Block 2 and separates it from Block 1.

[0005] Furthermore, the pad is fastened to the segment within the countersunk platform using countersunk screws.

[0006] Furthermore, the pad is made of steel, and the force point of the disassembly tool is applied to the steel pad, so that the surface of the aluminum tooling is not damaged during demolding.

[0007] Furthermore, the first and second blocks are either vertically joined molds or horizontally joined molds.

[0008] Furthermore, at least one set of corresponding recessed platforms, pads, longitudinal edge surfaces, and grooves are provided between the first block and the second block.

[0009] Furthermore, an arc-shaped chamfer is provided at the corner between the bottom surface of the groove and the longitudinal edge surface to prevent the disassembly tool from interfering with the right-angle corner when it swings.

[0010] Beneficial effects: The advantages of this application are: between the first and second blocks of the mold, on the mating surface outside the mold forming surface, at least one set of structures composed of corresponding countersunk platforms, pads, longitudinal edge surfaces, and grooves is provided to reduce demolding damage. The demolding tool extends into the groove and acts between the pad and the bottom surface of the groove to demold the two blocks without damaging the surface of the aluminum tooling during demolding, thus providing good protection for the aluminum tooling. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this application;

[0012] Figure 2 This is a longitudinal sectional view of this application. Detailed Implementation

[0013] The present application will be further explained below with reference to the accompanying drawings and specific embodiments.

[0014] A molding tooling for aluminum interior parts of aerospace applications, featuring a structure that reduces demolding damage, comprises at least two tooling sections, as shown in the attached diagram. Figure 1 , 2 The two sections 1 and 2 shown are joined together vertically, with their mating surfaces 11 and 21 overlapping each other, so that their respective molding surfaces 12 and 22 are closed. A countersunk platform 3, such as a circular or rectangular countersunk platform, is made on the mating surface 11 of the lower section 1. A matching shaped pad 4 is placed inside the countersunk platform 3. The pad 4 is made of steel. The pad 4 should be placed in the countersunk platform 3 so that its upper surface is not higher than the mating surface 11 of section 1, so as not to affect the closing of the molding surfaces 12 and 22. Ideally, the upper surface of the pad 4 is flush with the mating surface 11 of section 1, so that the mating surfaces 11 and 21 are also completely fitted at the pad 4. The pad 4 is fastened to section 1 inside the countersunk platform 3 with countersunk screws 7.

[0015] The upper segment 2 is positioned at the position of the pad block 4 with a longitudinal edge surface 5, that is, segment 2 and segment 1 are partially connected on the pad block 4. A groove 6 is opened on segment 2 from the connection surface 21 and the longitudinal edge surface 5, thus forming a space above the pad block 4.

[0016] During demolding, the hook 91 at the front end of the demolding tool 9 is inserted into the groove 6. The bottom of the hook 91 contacts the pad 4 as a fulcrum, and the front end of the hook 91 faces upward toward the bottom surface of the groove 6. By swinging the demolding tool, the front end of the hook pushes the second block 2 upward with the fulcrum, thereby lifting the second block 2 and separating it from the first block 1. The force is applied to the steel pad and the upper groove, so the surface of the aluminum tooling is not damaged during demolding. An arc-shaped chamfer 8 is made at the corner between the bottom surface of the groove 6 and the longitudinal edge surface 5 to prevent interference between the demolding tool and the right-angle corner when swinging.

[0017] The corresponding countersunk surface 3, pad block 4, longitudinal edge surface 5, groove 6, countersunk screw 7, and arc chamfer 8 constitute a set of structures to reduce demolding damage. At least one such set of structures to reduce demolding damage is provided between segment 1 and segment 2, all located on the mating surface outside the mold forming surface. This application is also applicable to the case where segment 1 and segment 2 are left and right mating molds.

Claims

1. A molding fixture for aluminum interior parts of aircraft with a structure that reduces demolding damage, comprising at least two fixture blocks, namely block one (1) and block two (2), wherein the blocks one (1) and block two (2) are mated together to close their respective molding surfaces, characterized in that: A recessed platform (3) is provided on the mating surface of the first segment (1). A pad (4) is provided in the recessed platform (3). The upper surface of the pad (4) is not higher than the mating surface of the first segment (1). A longitudinal edge surface (5) is provided on the second segment (2) at the position of the pad (4). A groove (6) is provided on the second segment (2) from the mating surface and the longitudinal edge surface (5). When demolding, the hook at the front end of the demolding tool is inserted into the groove (6). The bottom of the hook contacts the pad (4) as a fulcrum. The front end of the hook faces the bottom surface of the groove (6). When the demolding tool is swung, the front end of the hook lifts the second segment (2) and separates it from the first segment (1).

2. The aluminum molding tooling for aerospace interior parts with a structure that reduces demolding damage as described in claim 1, characterized in that: The pad (4) is fastened to the first segment (1) inside the countersunk platform (3) with countersunk screws (7).

3. The aluminum molding tooling for aerospace interior parts with a structure that reduces demolding damage as described in claim 1, characterized in that: The pad (4) is made of steel.

4. The aluminum molding tooling for aerospace interior parts with a structure that reduces demolding damage as described in claim 1, characterized in that: The first block (1) and the second block (2) are either vertically joined molds or horizontally joined molds.

5. The aluminum molding tooling for aerospace interior parts with a structure that reduces demolding damage as described in claim 1, characterized in that: At least one set of corresponding recessed platform (3), pad (4), longitudinal edge surface (5), and groove (6) is provided between the first block (1) and the second block (2).

6. The aluminum molding tooling for aerospace interior parts with a structure that reduces demolding damage as described in claim 1, characterized in that: An arc-shaped chamfer (8) is provided at the corner between the bottom surface of the groove (6) and the longitudinal edge surface (5).

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