Integral positioning device and method for cap-shaped stringer

Abstract

The invention discloses a cap type stringer integral positioning device which comprises an overturning frame, overturning shafts are arranged at the two ends of the overturning frame respectively, a plurality of cross beams are arranged in the overturning frame, and the bottoms of the cross beams are connected with positioning clamping plate assemblies through connecting plates and clamping plate connecting pieces. The positioning clamping plate assembly comprises a clamping plate body, clamping devices and guiders, clamping positioning grooves with the number consistent with that of the cap-shaped stringers are formed in the clamping plate body along the arc-shaped bottom edge, and the clamping devices and the guiders with the number consistent with that of the cap-shaped stringers are arranged on the clamping plate body. According to the cap-shaped stringer integral positioning device, the combination efficiency and the positioning precision of the cap-shaped stringer and the skin are improved, and by means of the device and the method, the cap-shaped stringer can be integrated on the cap-shaped stringer integral positioning device firstly; through overturning of the overturning positioning frame, the whole device for loading the cap-shaped stringer and a skin mold are integrally and accurately combined at a time by utilizing a travelling crane, and the cap-shaped stringer can be integrally shaped, clamped, overturned and accurately positioned and assembled on the skin.

Description

technical field [0001] The invention relates to the technical field of aircraft manufacturing, in particular to a hat-shaped girder overall positioning device and method. Background technique [0002] Composite materials have many excellent characteristics such as high specific strength and high specific modulus, fatigue resistance, corrosion resistance and overall formability. Its panel structure has been more and more widely used in modern aircraft structures. Composite caps The reinforced truss panel can withstand the tension, compression and shear loads of the fuselage. The overall and local rigidity of the structure is good, which reduces the stress concentration and the weakening of the sectional area of ​​the panel by nail holes, and has great advantages in weight reduction. big advantage. The "dry hat stringer + wet skin" co-bonding process is used to manufacture composite hat-shaped reinforced wallboard parts, which overcomes the problems of complex co-curing moldi...

AI Technical Summary

Problems solved by technology

[0003] Due to the limitation of the technical level, it is difficult to realize the overall combined positioning and precision control of hat-shaped stringers on the panel in the co-gluing process, especially for large-scale reinforced panels with double curvature and a large number of hat-shaped stringers; traditional The combined positioning of the wall panels mostly adopts the analog quantity working method through marking lines, positioning holes and positioning blocks, etc., there are large man-made and systematic errors, and the efficiency is low, and the position of the hat-shaped stringers on the skin cannot be guaranteed. Hat stringers will not slip and warp during curing

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