Oscillation Cutting Control for Chip Length and Machine Load
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Solution Overview
Problem
Existing techniques struggle to accurately calculate chip length during oscillation cutting, making it difficult to set machining and oscillation conditions effectively, as chip length depends on machining and oscillation conditions, and conventional methods do not adequately consider factors like oscillation amplitude.
Innovation Solution
A control device for machine tools that includes a condition acquisition unit, chip length calculation unit, and chip length output unit, which calculates and displays chip length based on machining and oscillation conditions, allowing for accurate setting of these conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If oscillation amplitude is increased to shorten chip length, then chip entanglement is prevented, but machine load increases leading to potential machine failure
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting oscillation parameters (amplitude, frequency, number of oscillations) based on calculated chip length and machining conditions. The control device calculates the number of oscillations needed to achieve desired chip length and automatically sets oscillation conditions, allowing optimization of chip control while maintaining machine load within safe limits.
2Object-affected harmful factors
If oscillation conditions are manually set to control chip length, then chip entanglement can be prevented, but it is difficult to set machining conditions while considering chip length
Solution Approach 1:
The control device performs self-service by automatically calculating the number of oscillations and setting oscillation conditions based on input machining parameters and desired chip length. The system computes the required oscillations using the formula N = L/(π×A) where N is number of oscillations, L is chip length, and A is oscillation amplitude, then automatically configures the oscillation parameters without requiring manual calculation or adjustment by the operator.
3Productivity
If chip length is not accurately calculated, then machining conditions cannot be optimized, but existing techniques do not provide accurate chip length calculation considering oscillation conditions
Solution Approach 1:
The patent implements feedback by calculating chip length based on oscillation conditions and machining parameters, then using this calculated chip length information to automatically adjust and optimize oscillation settings. The control device continuously monitors the relationship between oscillation parameters and resulting chip length, enabling closed-loop optimization of machining conditions to achieve desired chip control while maximizing productivity.
Data Source
AI summary
Provided is a technology with which a chip length can be calculated, and with which a machining condition and an oscillation condition can be set easily while checking the calculated chip length. A control device 1 of a machine tool which performs machining while causing a cutting tool and a workpiece to oscillate relative to one another comprises: a condition acquiring unit 12 for acquiring a machining condition and an oscillation condition; a chip length calculating unit 13 for calculating a chip length on the basis of the machining condition and the oscillation condition acquired by the condition acquiring unit 12; and a chip length outputting unit 14 for outputting the chip length calculated by the chip length calculating unit 13.