Machining Simulation Local Region Offset Deformation
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Solution Overview
Problem
Machining simulations using three-dimensional shape models require significant computational resources and time, especially when issues arise near the end of the process, leading to inefficient examination and correction processes due to the need to re-execute simulations from the beginning.
Innovation Solution
A machining simulation device that allows for localized simulation by setting a local region around the problematic area, offsetting and deforming the shape model, and using only relevant tool movement data to simulate and display the cut and deformed shape, enabling faster identification and correction of issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a machining simulation is re-executed from the beginning each time a problem is found, then the simulation can be repeated to analyze and solve problems, but the examination work cannot be performed efficiently due to long calculation time
Solution Approach 1:
The patent divides the machining simulation into multiple time points or stages. Instead of re-executing the entire simulation from the beginning, the system stores intermediate results at different time points and allows resumption from a specific time point when a problem is detected. This segmentation enables partial re-simulation only for the necessary portion, significantly reducing calculation time while maintaining simulation accuracy.
2Productivity
If midway results of machining simulation are saved at multiple steps, then simulation can be restarted efficiently, but a large storage area is required corresponding to the number of times of saving
Solution Approach 1:
The patent extracts and stores only the essential intermediate results at critical time points during machining simulation, rather than storing all simulation data continuously. By selectively saving results at key stages where problems are most likely to occur or where resumption makes sense, the system achieves efficient simulation restart with minimized memory consumption.
3Loss of time
If a local region is set for the workpiece and only relevant tool movement data is used, then the simulation time is reduced, but the device complexity increases
Solution Approach 1:
The patent applies local quality by focusing computational resources on a specific local region of the workpiece where problems are detected or suspected. Instead of processing the entire workpiece model, the system identifies and simulates only the affected local area with relevant tool movements, significantly reducing simulation time. The complexity increase is managed through automated region identification algorithms that selectively process only necessary portions of the machining data.
Data Source
AI summary
A machining simulation device includes a local-region setting unit that sets a local region for a workpiece, an offset-deformation processing unit that offsets and deforms a shape of a part of a whole three-dimensional shape model of the workpiece, for which the local region is set, and generates a local three-dimensional shape model of the workpiece, a local tool-movement-data output unit that outputs local tool movement data from whole tool movement data based on a tool model and movement path data of a tool, a local cutting-deformation processing unit that cuts and deforms the local three-dimensional shape model of a workpiece based on the local tool movement data, and a display superimposing unit that superimposes the cut and deformed local three-dimensional shape model of the workpiece on the whole three-dimensional shape model of the workpiece, and displays the superimposed result.