Chamfering Tool Path Generation for Three-Axis and Five-Axis Machining
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional automatic programming apparatuses require complex operations and dedicated systems for generating precise tool path data for five-axis machining in chamfering processes, leading to inefficiencies despite high precision calculations, as most chamfering processes only need to remove corner portions, not requiring high precision.
Innovation Solution
An automatic programming apparatus that generates tool path data for chamfering processes using machining unit data, including a machining region shape generating unit, a chamfering tool path generating unit, a chamfered plane defining unit, a reference point sequence generating unit, and a tool reference position generating unit, allowing for simple operation and improved machining efficiency without the need for advanced CAD or NC devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If five-axis-controlled machining is used for chamfering processes on complicated shapes, then manufacturing precision is improved, but device complexity and operation complexity increase significantly
Solution Approach 1:
The patent segments the chamfering process into distinct operational modes (three-axis mode and five-axis mode). The control device divides the complicated shape into multiple regions, determining which regions can be processed by three-axis machining and which require five-axis machining. This segmentation allows the system to use simple three-axis machining for most regions while reserving complex five-axis machining only for necessary areas, thereby reducing overall device complexity while maintaining precision where needed.
Solution Approach 2:
The patent applies partial five-axis action by using five-axis-controlled machining only for specific complicated regions that require high precision, while using three-axis machining for the majority of the chamfering process. This partial application of the more complex machining mode avoids the need to employ five-axis systems throughout the entire process, thus reducing device complexity and operational burden while still achieving necessary manufacturing precision for critical areas.
2Manufacturing precision
If five-axis-controlled machining is used for chamfering processes, then manufacturing precision is improved, but productivity decreases due to longer operation periods
Solution Approach 1:
The control device segments the workpiece surface into multiple regions based on geometric characteristics. By identifying which regions have complicated shapes requiring five-axis machining and which regions can be handled by three-axis machining, the system minimizes the time spent on complex operations. Most regions are processed efficiently using three-axis machining, while only necessary complicated regions receive five-axis processing, thereby maintaining productivity while ensuring precision where needed.
Solution Approach 2:
The patent implements partial five-axis machining by applying five-axis-controlled machining only to specific complicated regions that truly require high precision, rather than using it for the entire chamfering process. This selective approach reduces the total operation period significantly compared to using five-axis machining throughout, while still achieving the necessary manufacturing precision for the complicated portions of the workpiece.
3Manufacturing precision
If dedicated systems are used for five-axis-machining calculations, then manufacturing precision is improved, but device complexity and cost increase
Solution Approach 1:
The control device is designed to perform multiple functions: it can execute both three-axis machining operations and five-axis machining operations, and it can handle both simple and complicated shape calculations using its own integrated capabilities. This multi-functionality eliminates the need for separate dedicated calculation systems, reducing device complexity and cost while maintaining the ability to achieve high manufacturing precision when five-axis machining is required.
Solution Approach 2:
The control device serves itself by incorporating the computational capabilities needed for five-axis machining directly within the control system. Rather than relying on external dedicated calculation systems, the control device performs the necessary calculations for tool path generation and machining parameters using its own processing power, thereby reducing system complexity and eliminating the need for additional specialized equipment.
4Device complexity
If manual chamfering operations are performed, then device complexity is reduced, but productivity and manufacturing precision decrease
Solution Approach 1:
The control device automatically determines the appropriate machining mode (three-axis or five-axis) for each region of the workpiece based on its geometric characteristics. It self-generates the necessary tool paths and machining parameters without requiring manual programming or intervention. This automated decision-making and execution process maintains system simplicity while dramatically improving productivity and consistency compared to manual chamfering operations.
Solution Approach 2:
The patent replaces manual mechanical operations with automated control systems that use computational algorithms to determine machining strategies and generate tool paths. The control device substitutes human judgment and manual programming with automated image processing and computational geometry algorithms, thereby improving productivity and precision while maintaining ease of operation through automatic mode selection between three-axis and five-axis machining.
Data Source
AI summary
To obtain an automatic programming apparatus, capable of generating a tool path for the chamfering process with a simple operation and capable of shortening the operation period and improving machining efficiency, the automatic programming apparatus includes a chamfering tool path generating unit and machining condition data. The chamfering tool path generating unit includes: a chamfered plane defining unit that generates shape data defining a chamfered plane obtained after the chamfering process is performed with respect to a shape of the chamfering target part; a reference point sequence generating unit that generates a reference point sequence used as a reference for generating the tool path data used for performing the chamfering process; and a tool reference position generating unit that, generates a reference position of a machining tool used when the machining tool passes while performing the chamfering process.