Ribbed skin positioning and forming method

Abstract

The invention discloses a stiffened skin positioning and forming method which comprises the following steps: constructing a forming template frame, and laying and forming a skin through the forming template frame; a plurality of rib forming die bodies are constructed, each rib forming die body comprises two split die bodies, and ribs are formed through the split die bodies; constructing a plurality of sections of portal frames matched with the corresponding rib forming die bodies; assembling each section of rib forming die body to the bottom of the corresponding portal frame; the portal frame provided with all the rib forming die bodies is integrally assembled to a forming die plate frame; a plurality of positioning assemblies are assembled between the two split die bodies of each rib forming die body, and the relative positions of the ribs and the skin are adjusted through the positioning assemblies; the reinforced skin manufacturing method has the advantages that the theoretical positions of the bottoms of the ribs can be guaranteed, and the ribs, at the bottom positions, of the formed reinforced skin cannot deviate.

Description

technical field [0001] 本申请涉及复合材料成型技术领域,尤其涉及一种加筋蒙皮定位成型方法。 Background technique [0002] 复合材料整体结构制件越来越多地应用在航空工业各领域,其优越性在于可以大幅减少零件数量,减少分段、减少对接、节省装配时间,并提高制件结构的力学性能,充分体现复合材料的优异性能。复合材料整体结构制件采用最多的是加筋蒙皮结构。复合材料制件因其材料特性需要在高温高压的环境中成型,需要提供成型模具维持其理论外形。目前整体复材制件结构应用在飞机外形覆盖件和机身各段的大型蒙皮结构中,筋条形状复杂,截面尺寸大,同时对外形和筋条位置精度要求很高。因此,对成型模具的要求也越来越高。 [0003] 但是,当筋条截面尺寸大、高的加筋蒙皮成型如果采用现有成型方法,则不能保证筋条底部的理论位置,成型后的加筋蒙皮在底部位置的筋条往往会产生较大偏移。 Contents of the invention [0004] 本申请的主要目的在于提供一种加筋蒙皮定位成型方法,旨在解决现有复合材料成型方法不能保证筋条底部的理论位置,易产生较大偏移的技术问题。 [0005] 为实现上述目的,本申请提供一种加筋蒙皮定位成型方法,包括以下步骤: [0006] 构建成型模板架,通过成型模板架铺叠成型出蒙皮; [0007] 构建多段筋条成型模体,每段筋条成型模体均包括两个分模体,通过分模体成型出筋条; [0008] 构建多段与对应筋条成型模体匹配的龙门架; [0009] 将各段筋条成型模体装配到对应龙门架底部; [0010] 将装配有各段筋条成型模体的龙门架整体装配到成型模板架上; [0011] 在每段筋条成型模体的两分模体之间组装若干定位组件,通过定位组件调整筋条与蒙皮的相对位置; [0012] 将筋条胶接在蒙皮对应位置,以制得加筋蒙皮。 [0013] 可选地,所述将各段筋条成型模体装配到龙门架底部,包括: [0014] 在筋条成型模体上设置多组定位装置A; [0015] 在龙门架上设置多组与定位装置A一一对应的定位装置B; [0016] 将定位装置A对准对应的定位装置B下方,采用多个紧固件将所有的定位装置A和对应的定位装置B固定连接在一起,...

AI Technical Summary

Problems solved by technology

[0004] The main purpose of this application is to provide a method for positioning and forming of reinforced skin, aiming at solving the problem that existing composite material forming methods cannot guarantee the theoretical position of the bottom of the ribs. Technical problems that are prone to large offsets

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