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A kind of pore-making method of foam sandwich structure

A technology of sandwich structure and surface structure, which is applied in the field of hole making of foam sandwich structure, can solve the problem that the hole position is difficult to meet the high-precision size requirements, and achieve the effect of ensuring high accuracy, improving hole position accuracy, and improving installation accuracy

Active Publication Date: 2021-11-16
DONGFENG MOTOR CORP HUBEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a hole-making method of a foamed sandwich structure, which solves or partially solves the technical problem in the prior art that the holes made by machining methods cannot meet the high-precision size requirements

Method used

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  • A kind of pore-making method of foam sandwich structure
  • A kind of pore-making method of foam sandwich structure
  • A kind of pore-making method of foam sandwich structure

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Experimental program
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Embodiment Construction

[0022] see Figure 1-4 A pore-making method for a foamed sandwich structure provided in an embodiment of the present invention includes the following steps:

[0023] The skeleton structure 1 is obtained, and the skeleton structure 1 is provided with a processing buffer area 3 and a high-precision hole position 4 .

[0024] The surface structure 2 is obtained, and the surface structure 2 is placed on the skeleton structure 1 to form a closed cavity.

[0025] A foaming agent is placed in the airtight cavity for foaming to form a foamed structure 5 .

[0026] The surface structure 2, the foam structure 5 and the processing buffer area 3 are drilled to form a through hole 6, and the through hole 6 communicates with the high-precision hole 4.

[0027] Specific embodiments of the application due to the acquisition of the skeleton structure 1, the skeleton structure 1 is provided with a processing buffer area 3 and a high-precision hole position 4, so the high-precision hole positi...

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Abstract

The invention discloses a pore-making method for a foamed interlayer structure, which belongs to the technical field of foaming. The hole-making method of the foamed sandwich structure comprises the following steps: obtaining a skeleton structure, on which a processing buffer area and high-precision holes are arranged; obtaining a surface structure, and arranging the surface structure on the skeleton structure , forming a closed cavity; placing a foaming agent in the closed cavity for foaming to form a foam structure; drilling the surface structure, foam structure and processing buffer area to form a through hole, the The through hole communicates with the high-precision hole. The hole-making method of the foam sandwich structure of the present invention can ensure high accuracy of hole positions.

Description

technical field [0001] The invention relates to the technical field of foaming, in particular to a method for making holes in a foamed sandwich structure. Background technique [0002] For the foamed sandwich structure, it is necessary for the skeleton structure and the surface structure to form a closed cavity, so that high pressure can be applied to it for foaming, and a foaming structure is formed between the surface structure and the skeleton structure; since the skeleton structure provides Support and seal, thus, it is impossible to directly obtain high-precision hole positions. Therefore, the foamed sandwich structure is usually machined to obtain the required hole positions after the structure is formed. [0003] The process of making holes by machining is simple, no need to adjust the foam structure, and the degree of freedom in hole making is high. However, due to the drilling process of the processing tool on the surface structure-foaming structure-skeleton struc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C44/16B29C44/32B29B11/14
CPCB29C44/16B29C44/334B29B11/14B29C49/071B29C2949/0715
Inventor 杨龙王君丽李福龙王洪明勾赵亮
Owner DONGFENG MOTOR CORP HUBEI