Series-parallel connection structure-based six-degree-of-freedom attitude adjusting system and method

By using a 6-DOF attitude adjustment system with a series-parallel structure, combined with a servo motor and a handwheel-driven screw transmission, the technical limitations of existing attitude adjustment systems have been overcome. This has enabled high-precision, low-labor-intensity assembly of aero engines, ensuring precise docking between the engine and the fuselage and the stability of the equipment.

CN121134030AActive Publication Date: 2025-12-16CHENGDU AIRCRAFT INDUSTRY GROUP
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Patent Information

Application Number
CN202511698640.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-19
Publication Date
2025-12-16
Estimated Expiration
2045-11-19

AI Technical Summary

Technical Problem

Existing aero-engine attitude control systems have significant technical limitations in terms of high precision and high load capacity compatibility, redundant drive of multiple power sources, and pollution-free reliability, making it difficult to meet the digitalization and flexibility requirements of aircraft manufacturing.

Method used

A 6-DOF attitude adjustment system based on a series-parallel structure is adopted, which combines a servo motor and a handwheel drive. Through a lead screw transmission module and an elastic deflection mechanism, redundant drive and flexible connection of the power source are realized. Combined with a scissor fork lifting seat and slide rail structure, high-precision position and posture adjustment is achieved.

Benefits of technology

It achieves high-precision, low-labor-intensity, and highly adaptable assembly of aero engines, ensuring precise docking between the engine and the fuselage, avoiding the risk of contamination in the hydraulic system, and improving the stability and operability of the equipment.

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Abstract

The invention relates to the technical field of aircraft assembly, and discloses a six-degree-of-freedom attitude adjusting system and method based on a series-parallel connection structure, the attitude adjusting system comprises a moving seat, a mounting frame, a multi-shaft driving assembly and a mounting platform, each driving assembly is provided with a servo motor and a hand wheel dual power source, and is connected with a lead screw module through a bevel gear transmission mechanism; an elastic deflection mechanism is arranged between the power source and the bevel gear and used for achieving auxiliary torque supply, and the multi-shaft driving assembly can achieve adjustment of six postures of front-back, left-right, up-down, pitching, rolling and rotation in the horizontal plane when the large power part of the aircraft is assembled. According to the six-degree-of-freedom attitude adjusting system, through the innovative design of series-parallel mechanism fusion, double-power-source redundant drive, electric cooperative control and the like, high-precision assembly and installation of heavy-weight parts such as aero-engines can be achieved, and high-precision assembly and installation of the heavy-weight parts are high in precision, high in reliability, low in labor intensity and high in adaptability.
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