Numerical Control for Vibration Cutting Load Feedback
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Solution Overview
Problem
Existing numerical control devices for vibration cutting require user-adjustment of parameters when chips cannot be cut off due to delays in servomotors, disrupting continuous control processes.
Innovation Solution
A numerical control device that automatically adjusts vibration cutting parameters based on the cutting load generated during the process, using a learning apparatus and inference apparatus to maintain optimal cutting conditions without user intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vibration cutting parameters are manually adjusted when chip removal fails, then cutting performance can be improved, but operational complexity and downtime increase
Solution Approach 1:
The system automatically monitors cutting load via torque sensor data and adjusts vibration cutting parameters without user intervention. The parameter adjustment unit receives torque information, determines optimal parameters, and controls the vibration cutting process autonomously, enabling the system to serve itself and eliminate manual parameter adjustment
Solution Approach 2:
The system implements closed-loop feedback by continuously monitoring cutting load through torque sensors and using this information to dynamically adjust vibration cutting parameters. The parameter adjustment unit receives real-time torque data, processes it to determine optimal parameters, and modifies cutting conditions accordingly, creating a self-regulating control system
2Productivity
If vibration cutting parameters are automatically adjusted based on cutting load, then continuous control is maintained, but system complexity increases
Solution Approach 1:
The control device integrates multiple functions into a single system: the parameter adjustment unit simultaneously performs torque data acquisition, parameter optimization calculation, and vibration cutting control. This multi-functional integration maintains continuous automatic control while avoiding the need for separate complex subsystems
Solution Approach 2:
The system merges the parameter adjustment function with the existing vibration cutting control device. The parameter adjustment unit is integrated into the control architecture, combining parameter optimization and cutting control into a unified system that maintains productivity without requiring entirely separate complex systems
3Manufacturing precision
If torque-based parameter adjustment is implemented, then cutting load optimization is achieved, but measurement and control difficulty increases
Solution Approach 1:
The system uses torque as an intermediary parameter to indirectly measure and control cutting load conditions. Rather than directly measuring complex chip removal effectiveness, the parameter adjustment unit uses torque sensor data as a mediator to infer cutting state and adjust parameters accordingly, simplifying the measurement task while maintaining precision
Data Source
AI summary
A numerical control device for machining a workpiece while performing vibration cutting in which a tool and the workpiece are relatively vibrated by driving a first axis that drives the tool or a second axis that drives the workpiece, includes a parameter adjustment unit that adjust a parameter related to a vibration condition for the vibration cutting, based on the amount of cutting load generated on the first axis or the second axis when the vibration cutting is performed, and a controller that controls the vibration cutting using the adjusted parameter.