Machine Tool Multi-System Feed Control for Vibration Accuracy
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Solution Overview
Problem
Vibration caused by the operation of one system in a machine tool with multiple systems can significantly reduce machining accuracy, particularly in high-accuracy machining processes.
Innovation Solution
A control device that operates multiple systems independently using inter-system speed override mode, adjusting the feed shaft moving speed of one system based on the operation of another system, through a shaft feeding speed determination unit, to minimize vibration effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple systems operate independently according to separate machining programs, then system independence and operational flexibility are improved, but vibration from one system affects another system reducing machining accuracy
Solution Approach 1:
The control device monitors the operational state of one system and uses this feedback to adjust the feed shaft speed of another system. When vibration is detected in the monitored system, the control device automatically modifies the speed parameters of the other system to minimize vibration-induced errors, thereby maintaining machining accuracy while preserving system independence.
Solution Approach 2:
The invention dynamically changes the feed shaft speed parameter of one system based on the operational state of another system. By adjusting speed parameters in real-time according to detected vibration conditions, the system maintains machining precision without compromising the independent operational capability of each system.
2Manufacturing precision
If feed shaft speed is adjusted to reduce vibration, then machining accuracy is improved, but productivity may be reduced due to speed adjustments
Solution Approach 1:
The control device implements dynamic speed adjustment rather than fixed speed reduction. The feed shaft speed is modified in real-time based on actual vibration conditions, allowing the system to maintain higher speeds when vibration is minimal and reduce speeds only when necessary, thereby balancing machining accuracy with productivity.
Solution Approach 2:
The system performs periodic monitoring of vibration states and adjusts speeds accordingly. This periodic control approach allows the system to maintain optimal speeds during normal operation and only apply speed adjustments during specific periods when vibration affects machining accuracy, thus preserving overall productivity.
Data Source
AI summary
A control device that causes multiple systems included in a machine tool to operate independently of each other according to NC programs, which are multiple machining programs associated with the multiple respective systems, includes a shaft feeding speed determination unit that adjusts a feed shaft moving speed of a speed-adjusted system when one of the multiple systems is set as a system under monitoring, where the speed-adjusted system is a system other than the system that has been set as the system under monitoring.