A positioning and detecting device and method for composite material rotary body with stiffening rib secondary bonding

By using a reinforced secondary adhesive bonding positioning device and testing method for composite rotating bodies, the limitations of composite rotating bodies in circumferential mechanical properties have been solved, enabling high-precision manufacturing and non-destructive testing, while reducing tooling complexity and cost.

CN122442969APending Publication Date: 2026-07-24SHENYANG AIRCRAFT CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHENYANG AIRCRAFT CORP
Filing Date
2026-06-15
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Traditional composite rotating bodies have limitations in circumferential mechanical properties, especially under complex loads, they are prone to delamination or deformation. Existing mechanical connection methods destroy fiber continuity and may introduce ultrasonic non-destructive defects, and the bonding process requires complex tooling and is highly dependent on manual operation.

Method used

A composite material rotating body stiffener secondary adhesive bonding positioning device is adopted. The positioning lugs and pin hole system are used to achieve precise positioning of the stiffeners. The axial position accuracy is ensured by co-curing positioning method and detection device, reducing tooling complexity and manual dependence.

Benefits of technology

It has enabled the integrated high-precision manufacturing of large-size composite material stiffened rotating bodies, reducing tooling costs and cycle time, and realizing online, quantitative, and non-destructive testing of stiffener axis offset, thereby improving positioning accuracy and quality control.

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    Figure CN122442969A_ABST
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Abstract

The application provides a composite material rotary body stiffened secondary bonding positioning and detecting device and method. The positioning device comprises: a composite material rotary body, the outer surface of which has a flange part, two first positioning lugs are symmetrically arranged on the flange part, and a first pin hole is formed in each first positioning lug; a composite material tool for rib positioning, the inner surface of which is fitted with at least the area of the cylinder part and the flange part of the outer surface of the composite material rotary body, a second positioning lug is arranged on the composite material tool for rib positioning, a second pin hole is formed in the second positioning lug, and the position of the second pin hole corresponds to the position of the first pin hole one by one; a rotary curvature rib, the two ends of the adhesive surface side of which are respectively provided with third positioning lugs, and a third pin hole is formed in the third positioning lugs; a positioning pin, the positioning pin is configured to selectively pass through the first pin hole and the second pin hole to position the composite material tool for rib positioning on the composite material rotary body; and the positioning pin is configured to pass through the first pin hole and the third pin hole to position the rotary curvature rib on the composite material rotary body.
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