Cutting Point Visualization for Five-Axis Machining Defect Analysis
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Solution Overview
Problem
In machining with machine tools, the shape of the machining surface often differs significantly from the trajectory of the tool's tip point, especially in complex machining operations like simultaneous five-axis machining. This discrepancy makes it labor-intensive for workers to identify the cause of machining defects.
Innovation Solution
A display device that acquires cutting point information indicating the actual cutting points on the workpiece and features related to machining characteristics, calculated based on operational information, tool trajectory, and cutting point information. The device displays each cutting point using an expression method that indicates the corresponding feature, facilitating analysis of machining defects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the tool trajectory of the tip point is displayed to support analysis of machining defects, then information on tool movement is provided, but the correspondence between the displayed trajectory and the actual machining surface becomes unclear, increasing labor for analysis
Solution Approach 1:
The patent creates a visual copy of the machining surface by projecting cutting point positions onto the machining surface shape. This copy allows workers to directly compare the displayed information with the actual machining defects without needing to mentally map between the tool trajectory and the machining surface, thereby reducing analysis labor while maintaining information correspondence.
Solution Approach 2:
The patent introduces cutting point position information as an intermediary between the tool trajectory and the machining surface. By displaying where the cutting points are located on the machining surface based on tool trajectory and tool shape, it creates a bridging representation that maintains correspondence while making the information more directly usable for defect analysis.
2Adaptability or versatility
If complex machining operations like simultaneous five-axis machining are performed, then machining capability is improved, but the discrepancy between machining surface shape and tool trajectory increases, making defect analysis more difficult
Solution Approach 1:
The patent applies local quality by calculating and displaying cutting point positions for each specific location on the machining surface based on the local tool shape and orientation. This allows the display to accurately represent the relationship between tool movement and machining surface at each local position, even in complex five-axis machining where the relationship varies significantly across different locations.
Data Source
AI summary
A display device includes: a cutting point information acquisition unit acquiring cutting point information indicating a position of a cutting point at which a tool attached to a machine tool cuts a workpiece, the cutting point corresponding to each of a plurality of tip points included in a tool trajectory that is information indicating a movement path of the tip point of the tool; a feature acquisition unit acquiring a feature indicating a characteristic of machining, the feature being calculated corresponding to each of the tip points based on operational information that is information indicating an operational status of the machine tool, the tool trajectory, and the cutting point information; and a display unit displaying each of a plurality of the cutting points using an expression method indicating the feature corresponding to the cutting point based on the cutting point information and the feature.