RTM mold for composite workpiece with reinforcing ribs

A technology of reinforcing ribs and molds, applied in the field of RTM molds, can solve problems such as difficulty in molding and demoulding, and achieve the effects of easy demoulding, easy molding, and avoidance of demoulding

Inactive Publication Date: 2017-10-24
HENGSHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an RTM mold for composite parts with ribs, which can form composite parts with ribs on structural parts, so as to solve the problem of forming composite parts with ribs in the existing manufacturing technology. and demoulding difficulties

Method used

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  • RTM mold for composite workpiece with reinforcing ribs
  • RTM mold for composite workpiece with reinforcing ribs
  • RTM mold for composite workpiece with reinforcing ribs

Examples

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Embodiment

[0022] An RTM mold for composite parts with stiffeners, such as figure 1 and figure 2 , including upper mold 1, lower mold 3, several mandrels 2, edge strips 5 and bead 4, mandrel 2 is arranged between upper mold 1 and lower mold 3, upper mold 1 is provided with annular groove 8, side strips 5 and The bead 4 fits and is arranged in the annular groove 8 respectively, and the side bar 5 and the bead 4 are both arranged between the upper mold 1 and the lower mold 3, the core mold 2 is provided with a positioning boss 6, and the upper mold 1 is provided with a The rectangular groove 7 matched with the boss 6, the positioning boss 6 is provided with a first release bolt hole, the upper mold 1 and the lower mold 3 are respectively provided with a number of through holes, and the through holes are used to fix the upper mold 1 and the lower mold 3. The fastening bolts 11, the upper mold 1 and the lower mold 3 are respectively provided with a plurality of second demoulding bolts 12 h...

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Abstract

The invention provides an RTM mold for a composite workpiece with reinforcing ribs. The RTM mold comprises an upper mold, a lower mold, multiple core molds, an edge strip and a pressing strip, wherein the core molds are arranged between the upper mold and the lower mold, the upper mold is provided with an annular groove which is arranged around the core molds, and the edge strip and the pressing strip are attached to each other and placed in the annular groove separately; each core mold is provided with a locating convex table, the upper mold is provided with rectangular grooves matched with the locating convex tables, and each locating convex table is provided with a first demolding bolt hole; and the upper mold and the lower mold are each provided with multiple through holes, fastening bolts used for fixing the upper mold and the lower mold penetrate through the through holes, the upper mold and the lower mold are each provided with multiple second demolding bolt holes, and demolding bolts penetrates through the second demolding bolt holes. According to the RTM mold for the composite workpiece with the reinforcing ribs, the upper mold, the lower mold and the core molds are mutually matched, and therefore the dimensional accuracy of the workpiece is guaranteed. The RTM mold is designed according to the structural characteristic of the composite workpiece with the reinforcing ribs; and therefore, the reinforcing ribs of the workpiece can be formed easily, the dimension is accurate, demolding is easy, and the workpiece is prevented from being damaged.

Description

technical field [0001] The invention relates to an RTM mold for composite parts with reinforcing ribs. Background technique [0002] The RTM process is more and more widely used in aerospace, rail transit and other fields because of its high production efficiency, high manufacturing precision, good surface quality, and the ability to directly form products with complex shapes. [0003] The RTM mold is a double-sided mold. For complex composite parts with vertical and horizontal ribs, a reasonable core mold is also required. This structure is likely to cause difficulties in laying and forming prefabricated bodies. When demoulding, the ribs It is easy to get stuck in the gap of the mold, making demoulding difficult. [0004] The above problems should be considered and solved during the design and use of RTM molds. Contents of the invention [0005] The purpose of the present invention is to provide an RTM mold for composite parts with ribs, which can form composite parts w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/48B29C33/42B29C33/44
CPCB29C70/48B29C33/42B29C33/44
Inventor 郭琛於永红李四杰
Owner HENGSHEN
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