NC Program Creation for Cutting Chip Length Control
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Solution Overview
Problem
Existing machine tools require manual setting of reciprocal oscillations per rotation, which can lead to improperly set cutting chip lengths, potentially causing damage to the cutting tool or workpiece due to excessively long or short chips.
Innovation Solution
An NC program creation device that allows workers to easily set cutting chip lengths through a user-friendly interface, automatically calculating oscillation parameters based on selected length levels, reducing the need for manual parameter setting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the number of reciprocal oscillations per rotation is increased to break cutting chips more frequently, then cutting chip length is reduced, but the complexity of manual parameter setting increases and requires skilled workers
Solution Approach 1:
The system automatically calculates and sets the optimal number of reciprocal oscillations per rotation based on machining conditions, eliminating the need for manual parameter setting by operators. The control unit performs self-service by computing oscillation parameters from input data such as cutting speed, feed rate, and desired chip length, then automatically applies these parameters to control the oscillation mechanism.
Solution Approach 2:
The system dynamically adjusts oscillation parameters (number of reciprocal oscillations per rotation) based on machining conditions and desired chip length. By changing these parameters automatically rather than requiring manual input, the system adapts to different machining scenarios while maintaining optimal chip breaking performance.
2Length of moving object
If manual setting of reciprocal oscillations is required to control cutting chip length, then cutting chip length can be controlled, but the risk of improper setting leading to tool or workpiece damage increases
Solution Approach 1:
The system uses feedback mechanisms where the control unit continuously monitors machining conditions and adjusts oscillation parameters accordingly. By calculating the optimal number of reciprocal oscillations based on actual machining data and desired chip length, the system provides closed-loop control that prevents improper settings and ensures reliable chip breaking performance.
Solution Approach 2:
The control unit performs automatic calculation and adjustment of oscillation parameters without requiring manual intervention. This self-service capability eliminates human error in parameter setting and ensures that optimal parameters are always applied, thereby preventing tool or workpiece damage from improper settings.
3Ease of operation
If automatic calculation of oscillation parameters is implemented, then ease of operation improves, but device complexity increases
Solution Approach 1:
The control unit serves multiple functions: it controls the oscillation mechanism, calculates optimal oscillation parameters, monitors machining conditions, and adjusts parameters in real-time. By consolidating these functions into a single multi-functional control system, the patent avoids the need for separate complex devices for each function, thereby managing overall system complexity while providing automatic parameter calculation.
Data Source
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AI summary
An NC program creation device (132, 140) is configured to create an NC program to be executed by a machine tool (1) in which cutting chips are produced during cutting of a workpiece, and includes a reception unit (132) configured to receive a selection instruction in which a cutting chip length is selected, and a creation unit (143) configured to create an NC program including a G code or an M code for performing cutting so that cutting chips of the selected cutting chip length are produced, based on the selection instruction.