Servo Lift Stands for Aircraft Wing Panel Positioning
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Solution Overview
Problem
Current aircraft wing assembly methods require high accuracy positioning of wing panels, which is time-consuming and inefficient, particularly when using cranes.
Innovation Solution
The development of an aircraft structure manufacturing apparatus with a servo system group, including vertical and horizontal axis servo systems, 2-axis gimbals, and sliding mechanisms, allows for precise and rapid positioning of wing panels using a control unit that manages stroke limitations and rotation axes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a crane is used for positioning the wing panel, then the positioning can be performed with simple equipment, but the positioning time is long and accuracy is insufficient
Solution Approach 1:
The patent replaces the traditional crane-based mechanical positioning system with a servo system that uses electrical signals for precise control. The servo systems drive the supporting units to move the positioning object to predetermined positions with high accuracy, eliminating the time-consuming and less accurate crane operation.
Solution Approach 2:
The patent changes the control parameter from manual crane operation to automated servo control with predetermined position data. The control unit stores and executes predetermined position information, enabling rapid and accurate positioning by changing the positional parameters electronically rather than through manual mechanical adjustment.
2Productivity
If multiple supporting units with servo systems are used, then positioning accuracy and speed are improved, but device complexity increases
Solution Approach 1:
The patent divides the positioning system into multiple independent supporting units (first, second, third, and fourth supporting units), each equipped with its own servo system. This segmentation allows each unit to be controlled independently and simultaneously, improving overall positioning efficiency while maintaining manageable complexity through modular design.
Solution Approach 2:
The patent creates a universal positioning system where multiple supporting units with identical servo mechanisms can handle different portions of the positioning object. Each supporting unit serves multiple functions: supporting the positioning object, receiving position commands from the control unit, and executing precise movement to predetermined positions.
Data Source
AI summary
A first lift stand is provided with a first supporting unit to support a first portion of a positioning object, and a first servo system to drive the first supporting unit in a vertical direction. A second lift stand is provided with a second supporting unit to support a second portion of the positioning object, and a second servo system to drive the second supporting unit in the vertical direction. A third lift stand is provided with a third supporting unit to support a third portion of the positioning object, and a third servo system to drive the third supporting unit in the vertical direction. A fourth lift stand is provided with a fourth supporting unit to support a fourth portion of the positioning object, and a fourth servo system to drive the fourth supporting unit in the vertical direction.