A flexible positioner and a method for assembling a composite material wing box using the same

Abstract

The invention relates to a flexible locator and a method for assembling a wing box of composite materials using the locator, wherein the locator includes a base, a rotating ball head and a positioning plate, and the positioning plate is provided with a positioning hole for assembling the front beam or the rear beam, The rotating ball head includes a ball head body and a screw fixed to the ball head body, and the positioning plate is provided with a ball head hole matching the ball head body. The assembling method includes the following steps: firstly obtain the theoretical installation position of the positioning plate on the flexible positioner, secondly install the flexible positioner to the preset position of the frame, adjust the position of the ball head body and control the positioning plate to orbit the ball Rotate the head body to adjust the positioning plate to the theoretical installation position; then rotate the adjustment screws to limit the positioning plate to the theoretical installation position; finally fix the front and rear beams and assemble the rest of the wing box. The invention can shorten the design and manufacture period of the wing box assembly tooling and reduce the production cost.

Description

technical field [0001] The invention relates to a flexible positioner and a method for assembling a composite material wing box using the same, belonging to the technical field of aircraft assembly. Background technique [0002] The aircraft assembly workload accounts for about 50% of the entire production cycle, and the accuracy of aircraft manufacturing depends largely on the accuracy of assembly, so assembly plays an important role in the aircraft manufacturing process. Due to the large number of components that make up the aircraft structure, the large difference in geometric shape, and the existence of a large number of low-rigidity components, aircraft assembly is mostly carried out on specially designed assembly frames, and the assembly accuracy is mainly guaranteed by the frames. [0003] The assembly frame mainly includes four components, namely the skeleton, the locator, the clamp and the auxiliary device. The skeleton is mainly used to install structures such as ...

AI Technical Summary

Problems solved by technology

Aircraft manufacturing also follows this rule, so even in the same type of aircraft, the local structure of the composite wing box often changes slightly due to design changes, but the locators of traditional tooling are all fixed structures

After the composite material wing box is changed, the old tooling cannot be used, and new tooling must be redesigned, which will lead to an extension of the production cycle and an increase in production cost; Frequent changes in the structure of some composite wing boxes lead to repeated redesign and manufacture of the frame, which ultimately affects the development cycle of the aircraft

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