CNC Keyway G-Code Generation Using Tool Holder Geometry
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Solution Overview
Problem
Conventional CNC machining systems require extensive manual effort and are prone to errors in generating control code for complex movements, especially in keyway cutting, due to the need for multiple measurements and tedious calculations, which is time-consuming and costly, and are not suitable for prototyping or small batch jobs without CAD designs.
Innovation Solution
A computer interface and software system that allows users to input tool holder identifiers and keyway parameters to generate G-code for CNC machines, reducing programming time from hours to minutes by calculating the necessary control code for keyway formation, enabling users to produce keyways without CAD designs and facilitating easier operation of CNC machines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual measurement and calculation methods are used to generate CNC control code, then flexibility and adaptability are maintained, but time consumption and error probability increase significantly
Solution Approach 1:
The patent replaces manual mechanical measurement and calculation processes with an automated computer-based system. The system uses sensors to automatically measure workpiece dimensions and employs software algorithms to calculate and generate CNC control code, eliminating the need for manual intervention in the code generation process.
Solution Approach 2:
The system enables self-service by allowing the CNC machine to automatically measure its own workpiece, calculate the required movements, and generate its own control code without external assistance. This self-measurement and self-programming capability significantly reduces dependency on skilled operators and accelerates the manufacturing process.
2Productivity
If automated code generation systems are implemented, then productivity increases, but system complexity and initial costs increase
Solution Approach 1:
The patent creates a universal system that can handle multiple machining operations and workpiece types through a single integrated platform. The software includes pre-configured templates and libraries for common operations, allowing the system to adapt to different manufacturing needs without requiring separate specialized systems for each operation.
Solution Approach 2:
The system introduces an intermediary software layer that sits between the physical measurement sensors and the CNC control outputs. This intermediary layer processes measurement data, applies machining parameters, and translates results into standardized control code, simplifying the overall system architecture and making it more manageable.
3Manufacturing precision
If traditional measurement and code calculation methods are used, then system simplicity is maintained, but manufacturing precision and reliability decrease
Solution Approach 1:
The system implements feedback by continuously measuring actual workpiece dimensions during the machining process and using this information to adjust and refine the generated control code. This closed-loop approach ensures that the final dimensions match the target specifications closely, improving both precision and reliability.
Solution Approach 2:
The system performs preliminary measurements and calculations before the actual machining operation begins. By pre-calculating the control code based on measured dimensions and required tolerances, the system ensures that all necessary adjustments are made in advance, preventing errors during execution and guaranteeing dimensional accuracy.
Data Source
AI summary
A system for generating control code for controlling the movements of a CNC machine to form a keyway in a workpiece is provided. The generated control code is calculated using stored dimensions of a tool holder having a unique identifier along with a known position on the tool holder of a cutting tool along with input choices by a user for a length and depth of the keyway on the chosen workpiece. Once generated, the control code is communicated electronically to the user for input to the control software for their CNC machine.