Flexible Machining Assembly for Curved Surface Precision
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Solution Overview
Problem
Current machining systems for large structures like airplanes and ships struggle with precision due to limitations in adapting to complex curved surfaces, often resulting in defective operations as they cannot ensure perpendicularity of the tool to the work surface.
Innovation Solution
A flexible machining assembly with a frame incorporating moving and lifting systems, suction cups for fixation, and a machining head with transverse movement, allowing precise positioning on any surface through a combination of vertical, longitudinal, and transverse movements, controlled by a computer system with artificial vision cameras and sensors for precise alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If large machining systems with external support structures are used, then they can perform operations on large surfaces, but they are very conditional in relation to the shape of the application surfaces and their use is limited to the surfaces analyzed during design
Solution Approach 1:
The invention employs dynamic positioning systems that allow the machining head to adapt its position and orientation in real-time according to the surface geometry. The support structure includes adjustable arms and positioning mechanisms that can be dynamically reconfigured for different surface shapes, transforming a static system into a dynamic one that maintains adaptability across various geometries without requiring complete structural redesign
Solution Approach 2:
The machining system is designed with universal components that can function across multiple surface types. The support structure incorporates standardized interfaces and adjustable mechanisms that enable the same basic system to accommodate flat, curved, and complex geometries, making the device multi-functional rather than surface-specific
2Adaptability or versatility
If flexible machining systems with rails assembled on circular channels are used, then the machining carriage can move to any point on the surface, but it does not assure the perpendicularity of the tool on the work surface, causing defective precision
Solution Approach 1:
The invention incorporates feedback mechanisms including sensors and control systems that continuously monitor the position and orientation of the machining head relative to the work surface. This feedback enables real-time adjustments to maintain perpendicularity, with the system detecting deviations and automatically correcting them through controlled movement of the machining carriage and tool positioning mechanisms
Solution Approach 2:
The invention replaces purely mechanical positioning systems with a hybrid system that incorporates electronic sensors, actuators, and computer control. This substitution enables precise control of the machining head orientation through electronic feedback loops rather than relying solely on mechanical constraints, achieving superior perpendicularity maintenance on curved surfaces
3Ease of operation
If suction cups are used to fix the machining device on the structure, then the device can be positioned on the surface, but it does not assure the perpendicularity of the working tool with respect to the work surface when curved
Solution Approach 1:
The suction cup positioning system is enhanced with dynamic adjustment mechanisms that allow real-time modification of the machining head orientation after initial positioning. The system can dynamically tilt or rotate the tool holder to maintain perpendicularity to the work surface, transforming a static suction-based position into a dynamically adjustable positioning system that preserves both ease of operation and machining precision
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables precise machining operations on both flat and curved surfaces by ensuring the machining head is perfectly aligned and positioned, independent of the flexible guiding systems, thus improving operational precision and adaptability.
Implementation Method 1
the frame being provided with means for moving and lifting, provided with lifting and fixing systems, to thus be able to be placed in the necessary work positions
Implementation Method 2
fixing systems by means of suction cups
Data Source
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AI summary
The invention relates to a flexible assembly for performing work on large surfaces. The invention comprises a mobile assembly which supports a working head and which is equipped with movement systems (1) comprising a fixing system (2) and a traction system which act in an independent or synchronised manner, such that the assembly can move in steps across the application surface.