Flexible Alignment Tool for Precise Rotor Blade Leading Edge Cuts
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Solution Overview
Problem
The challenge lies in making precise cuts on wind turbine rotor blades with leading edges protected by ductile and robust materials, as existing methods result in fraying during cutting, making repair or replacement difficult due to the material's properties.
Innovation Solution
An alignment tool with a fixation means and guiding structure allows for precise cutting by securely attaching to the workpiece, using a flexible belt with polymer material and reinforced edges, and various fixation methods like suction cups, adhesive elements, and clamping arrangements to adapt to uneven geometries and contours.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a cutting apparatus is used on ductile and robust leading edge protection material, then cutting can be performed, but the material frays during cutting making precise cuts difficult
Solution Approach 1:
The patent introduces an alignment tool as an intermediary device between the cutting apparatus and the workpiece. This alignment tool includes a guiding structure with a groove that receives and guides the cutting edge, ensuring precise and clean cuts through the ductile leading edge protection material without causing fraying. The alignment tool mediates the interaction between the cutting apparatus and the material, translating the cutting force into a controlled, precise cutting action.
Solution Approach 2:
The alignment tool comprises a flexible belt made of polymer material that can adapt to the contour of the workpiece. This flexible structure allows the guiding groove to maintain precise alignment with the cutting edge while conforming to the curved surface of the rotor blade leading edge, ensuring accurate cuts even on complex geometries.
2Adaptability or versatility
If the alignment tool is made flexible to adapt to workpiece contours, then adaptability improves, but structural strength may be compromised
Solution Approach 1:
The flexible belt is made of polymer material that combines flexibility with sufficient structural strength. The composite nature of the polymer provides both the adaptability needed to conform to workpiece contours and the strength required to maintain the guiding structure's integrity during cutting operations.
3Duration of action of stationary object
If the guiding structure is reinforced to prevent wear during cutting, then durability improves, but flexibility may be reduced
Solution Approach 1:
The guiding structure features localized reinforcement at critical areas such as the groove edges and contacting surfaces. This local quality enhancement provides wear resistance and durability where needed during cutting operations, while the rest of the flexible belt maintains its flexibility and contour-adaptation capabilities.
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 and localized cuts on wind turbine rotor blades, allowing for repair or replacement of protected leading edges without dismounting the workpiece, maintaining durability and flexibility throughout the cutting process.
Implementation Method 1
the at least one fixation means comprises at least one suction cup
Data Source
AI summary
Provided is an alignment tool for a cutting arrangement including a cutting apparatus with a cutting edge for treatment of a workpiece, especially a rotor blade of a wind turbine, in which the alignment tool includes at least one fixation means for fixing the alignment tool to the workpiece and at least one guiding structure to guide the cutting edge of the cutting tool.