Multi-Turret Collision Avoidance via Fast Simulation
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Solution Overview
Problem
Conventional collision avoidance mechanisms for machine tools are inefficient for multi-system machine tools, as they are designed for single-system machines and typically performed during interpolation or idle runs, leading to increased time costs.
Innovation Solution
A machine tool collision avoidance method and system that uses fast simulation to detect potential collisions between turrets by estimating execution periods and calculating time points of trace points, allowing for quicker collision detection without actual operation or idle run, thereby reducing user preparation time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional collision avoidance mechanisms are used for multi-system machine tools, then collision detection can be performed, but the execution time is excessive due to actual interpolation or idle run requirements
Solution Approach 1:
The patent performs collision detection during the programming or simulation phase before actual machine tool operation. By calculating and comparing path traces of multiple turrets in advance, the system identifies potential collisions without requiring actual interpolation or idle run, thus eliminating time consumption during production preparation.
Solution Approach 2:
The patent creates virtual copies of turret paths through mathematical modeling and simulation. Instead of moving actual turrets to detect collisions, the system generates and analyzes digital representations of turret trajectories, allowing collision detection to occur in virtual space without physical movement or time consumption.
2Reliability
If conventional collision avoidance mechanisms are used, then collision detection is performed, but the system complexity increases when adapting single-system mechanisms to multi-system machine tools
Solution Approach 1:
The patent develops a unified collision detection framework that handles multiple turrets simultaneously using the same mathematical model and algorithm. The system processes path traces of all turrets through a single integrated computation rather than requiring separate mechanisms for each turret, reducing overall system complexity while maintaining comprehensive collision avoidance.
Solution Approach 2:
The patent combines the collision detection processes of multiple turrets into a single integrated analysis. By merging path trace calculations and performing unified comparison operations, the system avoids the complexity of multiple independent detection mechanisms while achieving comprehensive collision avoidance for all turret interactions.
3Productivity
If fast simulation is used for collision detection, then execution speed is improved, but the precision of collision detection may be compromised
Solution Approach 1:
The patent employs high-precision mathematical models and algorithms in the fast simulation process, utilizing accurate kinematic equations, transformation matrices, and computational geometry methods. By optimizing these computational parameters, the system achieves both rapid execution and high detection precision without sacrificing accuracy.
Solution Approach 2:
The patent replaces physical trial-and-error methods with advanced computational algorithms. Through sophisticated mathematical calculations including homogeneous transformation matrices, screw theory, and real-time kinematic analysis, the system achieves precise collision detection purely through computation, eliminating the need for slow physical verification while maintaining high accuracy.
Data Source
AI summary
A machine tool collision avoidance method includes: loading multiple processing codes; simulating multiple path traces corresponding to the processing codes; estimating multiple execution periods for running the path traces; selecting the shortest execution period from the execution periods; determines whether the distance between the trace point points on any two of the path traces is less than a safety distance within the shortest execution period; if the distance between a first trace point on a first path trace and a second trace point on a second path trace is less than the safety distance, estimating a first time point at which a first turret runs to the first trace point and a second time point at which the second turret runs to the second trace point; generating a collision warning if the difference between the first time point and the second time point is lower than a tolerance value.