Dual Positioning Guided Tool for Large-Area Path Accuracy
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Solution Overview
Problem
Current systems face challenges in automating the coarse positioning of rigs over large areas and accurately determining the edge of flat or smooth contours in materials like plywood, which hinders efficient task completion in woodworking and similar manufacturing processes.
Innovation Solution
The system employs a dual positioning system with a first system for fine positioning over small regions and a second system for coarse positioning over large areas, using sensors and markers to determine the tool's position relative to the workpiece, and includes features like dust extraction and force detection to improve accuracy and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single positioning system is used for both coarse and fine positioning, then the system complexity is reduced, but the positioning accuracy over large areas deteriorates
Solution Approach 1:
The positioning system is divided into two independent subsystems: a first positioning system for fine positioning with high accuracy over small regions, and a second positioning system for coarse positioning over large areas. Each subsystem is optimized for its specific function, resolving the contradiction between system complexity and positioning accuracy by eliminating the need for a single complex system to handle both scales.
Solution Approach 2:
The system operates in two different spatial dimensions: the first positioning system handles local fine-positioning in a small workspace, while the second positioning system handles global coarse-positioning over large areas. This dimensional separation allows each subsystem to excel at its respective scale without compromise.
2Productivity
If automated coarse positioning is implemented, then productivity is improved, but the ability to accurately determine edges and contours deteriorates
Solution Approach 1:
The second positioning system performs preliminary coarse positioning to bring the working member near the target location over large areas, enabling automated high-speed positioning. The first positioning system then performs the final precise positioning and edge detection. This preliminary action sequence allows automated coarse positioning while preserving accurate edge determination capability.
Solution Approach 2:
The positioning tasks are segmented into two phases: automated coarse positioning phase (second system) for productivity improvement, and precise edge detection phase (first system) for accuracy maintenance. The segmentation allows each phase to use the appropriate positioning method without interference.
3Measurement precision
If manual positioning is used for fine adjustments, then positioning precision is maintained, but labor intensity and time consumption increase
Solution Approach 1:
The first positioning system provides automated fine-positioning capability that serves itself to achieve high precision without manual intervention. The system can automatically determine its position relative to the workpiece and make precise adjustments, eliminating the need for manual positioning while maintaining accuracy and reducing time consumption.
Solution Approach 2:
The system uses sensors to detect the position of the frame or working member relative to the workpiece surface, providing feedback to the control system. This feedback enables automated closed-loop control for fine positioning, achieving manual-level precision without the time loss and labor intensity of manual operation.
Data Source
AI summary
The present disclosure is directed to performing work on a working surface based on a desired path using a working member. The disclosed system advances the working member with respect to the desired path using a first positioning system and a second positioning system. The first positioning system comprises a frame and actuators operable to advance the working member with respect to a portion of the desired path within an adjustment region. The second positioning system comprises actuators operable to move the frame. By moving the frame using the second positioning system, the first positioning system advances the working member with respect to a portion of the desired path that was outside the adjustment region before the frame was moved.