Numerical Controller Automatic Parameter Selection for Machining Area
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Solution Overview
Problem
Existing numerical controller technologies cannot automatically set parameters for machine tools during startup, as they rely on operational conditions or pre-configured numerical control programs, making them inapplicable when the machine tool is not operable.
Innovation Solution
A numerical controller with a parameter setting storage unit, machining area estimation unit, and automatic selection unit that estimates the machining area based on stored data and setting values, allowing for automatic parameter selection even when the machine tool is inoperable by referencing data tables associating machining area sizes with corresponding parameter settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If parameter adjustment is based on operational information (motor temperature, heat generation), then parameter optimization for operational conditions is achieved, but the technique becomes inapplicable during machine tool startup when the machine is not yet operable
Solution Approach 1:
The patent performs machining area estimation and parameter selection in advance during the startup phase, before the machine tool begins operational machining. The controller estimates the machining area based on stroke limits and pre-selects appropriate parameters from stored data, enabling the system to be properly configured before actual machining operations commence.
2Manufacturing precision
If parameter switching is based on pre-configured numerical control programs for each product, then parameter suitability for specific products is improved, but the technique requires the machine tool to already be operable and cannot perform automatic adjustment during startup
Solution Approach 1:
The numerical controller automatically performs machining area estimation and parameter selection without requiring external intervention or pre-configured product-specific programs. The system uses its own operational parameters (stroke limits) to estimate the machining area and autonomously selects appropriate parameters from stored data, enabling self-configuration during startup.
Solution Approach 2:
The patent changes the basis for parameter selection from product-specific numerical control programs to machine-specific parameters (stroke limits) that can be measured during startup. This parameter change enables automatic parameter adjustment based on the actual machine configuration rather than requiring pre-programmed data for each product.
3Measurement precision
If manual parameter setting is required for machine tool startup, then parameter accuracy can be ensured, but the complexity of the startup process increases and automatic parameter selection cannot be achieved
Solution Approach 1:
The patent replaces manual parameter setting operations with an automated estimation and selection system. The controller automatically estimates the machining area by calculating from stroke limits and retrieves appropriate parameters from stored data, substituting the mechanical/manual process of parameter setting with an automated information processing system.
Data Source
AI summary
A numerical controller includes a data table on which data in which a size of a machining area and a setting value of a parameter, which is influenced by a size of a machining area, are associated with each other is registered. Further, the numerical controller estimates a size of a machining area based on a setting value of a parameter used for control of a machine tool. In the case where data corresponding to the estimated size of the machining area is registered on the data table, the numerical controller acquires a parameter setting value corresponding to the size of the machining area from the data table so as to set the parameter setting value.