CNC Machining Position Control for Even Machine Component Wear
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Solution Overview
Problem
Existing subtractive manufacturing processes, such as CNC machining, face challenges in evenly distributing wear across machine components, leading to uneven component life, increased maintenance costs, and reduced accuracy due to unpredictable wear patterns.
Innovation Solution
A computer-implemented method and system that uses machine learning and simulation techniques to determine optimal machining positions based on previous positions, movements, and wear data of components, ensuring even wear distribution and prolonged component life by predicting and adjusting machining operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If traditional CNC machining processes are used with fixed toolpaths, then manufacturing efficiency is maintained, but wear on machine components becomes uneven leading to reduced component life and increased maintenance costs
Solution Approach 1:
The patent applies dynamics by making the machining position variable rather than fixed. The system dynamically adjusts the position of the workpiece or tool based on real-time wear data from sensors and historical machining data, allowing the machining location to shift across different areas of the machine component. This dynamic adaptation ensures that wear is distributed more uniformly across the component surface, extending component life while maintaining manufacturing efficiency.
Solution Approach 2:
The patent implements feedback mechanisms through sensors that continuously monitor wear on machine components during machining operations. This wear data is fed back to the control system, which then adjusts future machining positions to compensate for detected wear patterns. The feedback loop enables the system to adaptively manage wear distribution, preventing localized excessive wear and extending component service life.
2Manufacturing precision
If machining operations are performed at fixed positions, then process simplicity is maintained, but accuracy deteriorates due to unpredictable wear patterns affecting component geometry
Solution Approach 1:
The patent uses feedback from wear sensors and historical data to continuously update the optimal machining position. This feedback mechanism allows the system to compensate for wear-induced geometric changes, maintaining manufacturing precision despite the increased complexity of the position determination system.
Solution Approach 2:
The system performs preliminary analysis of wear data and machining history before determining the next machining position. By predicting future wear patterns in advance, the system can pre-position the workpiece or tool to optimize both accuracy and wear distribution, reducing the need for complex real-time adjustments during machining operations.
3Ease of repair
If wear is not monitored and managed, then operational simplicity is maintained, but maintenance costs increase due to unpredictable component failures
Solution Approach 1:
The patent implements continuous wear monitoring through sensors that provide real-time feedback on component condition. This enables predictive maintenance scheduling based on actual wear rates rather than fixed time intervals, allowing maintenance to be performed just before components reach critical wear levels. This approach improves maintenance predictability while minimizing unplanned downtime.
Solution Approach 2:
The system performs preliminary wear assessment and predicts future component conditions before failures occur. By analyzing current wear rates and projecting future states, the system can schedule maintenance activities in advance, preventing unexpected breakdowns and optimizing the timing of repairs to minimize production downtime.
Data Source
AI summary
Methods, systems, and apparatus, including medium-encoded computer program products, for computer aided design and manufacture of physical structures using subtractive manufacturing systems and techniques include, in one aspect, a method including obtaining information regarding a geometry of a part to be machined by a computer-controlled manufacturing system from a workpiece; based on the information regarding the geometry, identifying machine components to be used by the computer-controlled manufacturing system during machining the part; determining a position for the machining of the part with respect to at least one of the machine components, to even out wear on the machine components, based on data indicating previous positions, movements and wear of components associated with the computer-controlled manufacturing system; and providing instructions usable by the computer-controlled manufacturing system, wherein the instructions are configured to cause the computer-controlled manufacturing system to use the position for the machining.