Turning NC Tool Path Compensation for Workpiece Deformation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current NC program technologies for machining accuracy improvement, such as tool deformation correction, often fail to effectively enhance machining precision due to limitations in addressing workpiece deformation during the turning process.
Innovation Solution
An NC program generation system that calculates displacement on the workpiece at multiple process positions and determines a corresponding tool movement path to generate an NC program, thereby improving machining accuracy by adjusting the machining path to compensate for workpiece deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If tool deformation correction is applied to improve machining accuracy, then tool position precision is improved, but workpiece deformation is not addressed causing limited improvement in actual machining accuracy
Solution Approach 1:
Instead of correcting tool deformation, the patent inverts the approach by calculating and correcting workpiece deformation. The system computes displacement of the workpiece at multiple process positions and determines a corrected tool movement path that compensates for workpiece deformation, thereby improving actual machining accuracy.
Solution Approach 2:
The patent applies preliminary action by calculating workpiece displacement at multiple process positions before generating the NC program. The corrected tool movement path is determined in advance to compensate for anticipated workpiece deformation during machining, preventing accuracy errors before they occur.
2Ease of manufacture
If conventional NC programming is used without workpiece deformation compensation, then programming simplicity is maintained, but machining accuracy deteriorates due to unaddressed workpiece deformation
Solution Approach 1:
The patent introduces an intermediary computational step that calculates workpiece displacement at multiple process positions. This intermediary calculation serves as a mediator between conventional NC programming and accuracy requirements, automatically determining correction values without requiring complex manual programming adjustments.
Solution Approach 2:
The patent replaces manual trial-and-error programming adjustments with an automated computational system. The system uses mathematical calculations to determine workpiece displacement and generate corrected tool paths, substituting mechanical trial-and-error methods with precise computational analysis.
Data Source
AI summary
The present invention provides a technology for generating an NC program which can secure appropriate machining accuracy. Provided is a conversion computer 10 which includes a CPU 11 and generates an NC program for a turning process for a workpiece on a lathe, wherein the CPU 11 is configured to generate an NC program such that displacements caused for a workpiece to be processed on a plurality of machining positions at a time of a turning process are calculated, on the basis of the displacements caused for the workpiece on the plurality of machining positions, a movement path of a tool to be used at the time of the turning process is decided, and the tool is moved through the decided movement path.