NC Machining Force Optimization for Real-Time Configuration Changes
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Solution Overview
Problem
Existing numerically controlled machining methods face high computational overhead, limiting flexibility and preventing online simulations, which results in optimized machining programs being confined to a single configuration, making it difficult to adapt to varying machining conditions during the process.
Innovation Solution
A method that calculates forces during machining by determining a relationship between geometric interactions and configuration parameters, allowing for offline and online adjustments to optimize the machining process, decoupling geometric interactions from configuration parameters and enabling real-time adjustments during machining.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If optimization calculations are performed entirely offline prior to machining, then manufacturing precision is improved through force consideration, but adaptability deteriorates as the program is optimized for only one configuration
Solution Approach 1:
The optimization calculation is divided into two independent segments: geometric interaction data is calculated offline before machining, while force calculations are performed online during machining. This segmentation allows the geometric portion to be prepared in advance while the force-dependent portion adapts to actual machining conditions in real-time, resolving the contradiction between precision and adaptability.
Solution Approach 2:
The system transitions from a static offline optimization approach to a dynamic online optimization approach. By calculating forces during machining based on actual configuration parameters, the system dynamically adapts to changing machining conditions while maintaining precision through continuous force consideration.
2Adaptability or versatility
If optimization calculations are performed entirely online during machining, then adaptability is improved for real-time adjustments, but manufacturing precision deteriorates due to high computational overhead
Solution Approach 1:
Geometric interaction data is calculated in advance before machining begins. This preliminary calculation eliminates the need to perform computationally intensive geometric calculations during machining, reducing online computational overhead while maintaining the ability to perform force calculations in real-time for precision control.
3Manufacturing precision
If complete machining simulation is performed offline, then manufacturing precision is improved through comprehensive force analysis, but loss of time increases due to inability to perform simulations during machining
Solution Approach 1:
The simulation process is segmented into geometric interaction calculation (offline) and force calculation (online). This allows comprehensive force analysis to be performed without delaying production, as the geometric portion is prepared in advance and only the essential force calculations require online processing time.
4Manufacturing precision
If configuration parameters are fixed in advance for offline optimization, then manufacturing precision is improved through detailed force calculation, but device complexity increases due to requirement for exact machine and tool configurations
Solution Approach 1:
The system accepts dynamic configuration parameters during machining rather than requiring fixed pre-specified configurations. Force calculations are performed based on actual machine and tool configurations during the machining process, eliminating the need for complex advance configuration specifications while maintaining optimization precision.
Data Source
AI summary
In order to be able to take into account machining configurations more flexibly, a method for optimizing numerically controlled machining of a workpiece includes ascertaining geometric interaction data. A relationship between a force to be expected and a configuration parameter of the machining is determined on the basis of the interaction data. The force is calculated during the machining on the basis of the relationship and a current value of the at least one configuration parameter. The machining is adapted depending on the calculated force.