Multi-Hierarchical Interference Protection for Machining Components
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Solution Overview
Problem
Multiple-axis machining systems face frequent component damage and cutting tool failures due to complex operation surfaces, necessitating an effective interference prevention method for internal components.
Innovation Solution
An interference preventing device and method that utilize a parameter database module and control module to provide multi-hierarchical protection areas by segmenting a basic envelope of a target component into sub-areas based on protection parameters, determining interference events, and controlling machining operations to prevent damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional interference preventing devices are used in multiple-axis machining systems, then the system can operate on complex curved surfaces, but component damage and cutting tool failures occur frequently due to interference events
Solution Approach 1:
The patent segments the protection space into multiple hierarchical levels: first dividing the basic envelope into several protection areas, then further dividing each protection area into sub-areas. This multi-level segmentation enables precise detection of interference events at different granularities, allowing the system to maintain high reliability while processing complex curved surfaces by detecting and preventing interference before it causes component damage or tool failure.
2Measurement precision
If the basic envelope is segmented into multiple sub-areas for interference detection, then interference events can be detected more precisely, but the computational complexity and processing time increase
Solution Approach 1:
The patent implements dynamic adjustment of the multi-hierarchical protection parameter based on real-time machining conditions. The control module dynamically modifies the granularity and distribution of sub-areas according to the complexity of the operation surface and the current machining state. This allows the system to achieve high detection precision when needed while reducing computational complexity during less critical phases, resolving the contradiction between precision and computational burden.
3Reliability
If a multi-hierarchical protection parameter is used to segment the basic envelope, then multi-level protection areas are created for better interference prevention, but the control system becomes more complex
Solution Approach 1:
The patent employs a nested hierarchical structure where the basic envelope contains multiple protection areas, and each protection area contains multiple sub-areas. This nesting approach organizes the control logic in a systematic manner, allowing the control module to manage complex interference prevention tasks through layered decision-making. The nested structure enables the system to achieve comprehensive protection capability while maintaining organized and manageable control complexity through modular processing at each hierarchical level.
Data Source
AI summary
An interference preventing method applied on a machining machine includes the following steps. Firstly, a control command is provided in response to an operation event. Next, protection information corresponding to a protection target component is provided. Then basic envelop of the protection target component is obtained. Then the basic envelop is segmented into a number of sub protection blocks according to a multi-hierarchical protection parameter and sub protection blocks not linked with the protection target component are removed, so as to determine a multi-hierarchical interference protection area. Next, whether an interference event of the multi-hierarchical interference protection area and other components occurs, so as to determine whether interference event of the protection target component occurs; if so, control signal is provided to control the processing operation of the machining machine.