Tool Path Interpolation Across Non-Parallel Reference Planes
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Solution Overview
Problem
Machining tools face inefficiencies and inaccuracies when dealing with workpieces having non-parallel reference planes, leading to longer machining times and rough surfaces due to the need for multiple contour lines that are not parallel.
Innovation Solution
A method is developed to generate a tool path by setting non-parallel third reference planes between conflicting reference planes, creating partial tool paths that are parallel to these planes, allowing for efficient machining of workpieces with non-parallel surfaces by interpolating between the planes and generating a helical tool path.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If contour lines are set parallel to one reference plane when machining workpieces with non-parallel reference planes, then the machining process becomes simpler, but the other reference plane cannot be properly machined requiring multiple non-parallel contour lines which increases machining time and reduces surface quality
Solution Approach 1:
The patent introduces a new dimension by setting multiple reference planes at different orientations rather than relying on a single reference plane. By establishing a first reference plane for one surface and a second reference plane for another surface, the system accommodates three-dimensional non-parallel surfaces, allowing contour lines to be generated that properly follow the geometry of each surface without requiring multiple separate machining operations.
2Adaptability or versatility
If multiple non-parallel contour lines are used to machine both reference planes, then both surfaces can be machined, but the surface quality becomes rough and machining time increases
Solution Approach 1:
The patent introduces a new dimension by setting multiple reference planes at different orientations rather than relying on a single reference plane. By establishing a first reference plane for one surface and a second reference plane for another surface, the system accommodates three-dimensional non-parallel surfaces, allowing contour lines to be generated that properly follow the geometry of each surface without requiring multiple separate machining operations.
Solution Approach 2:
The tool path is made dynamic by continuously adjusting the contour line orientation based on the specific geometry of each reference plane. The system generates contour lines that are parallel to the respective reference plane being machined, allowing the machining parameters to adapt to each surface's orientation rather than using fixed, non-parallel contour lines for all surfaces.
3Device complexity
If a single reference plane is used for tool path generation, then the tool path generation is simpler, but it cannot accommodate workpieces with non-parallel conflicting surfaces
Solution Approach 1:
The patent introduces a new dimension by setting multiple reference planes at different orientations rather than relying on a single reference plane. By establishing a first reference plane for one surface and a second reference plane for another surface, the system accommodates three-dimensional non-parallel surfaces, allowing contour lines to be generated that properly follow the geometry of each surface without requiring multiple separate machining operations.
Data Source
AI summary
This method for generating a tool path for processing a workpiece is provided with: a step for setting a first reference plane with respect to the workpiece; a step for setting, with respect to the workpiece, a second reference plant which is not parallel to the first reference plane; a step for interpolating, on the basis of the first reference plane and the second reference plane, a plurality of third reference planes, which are not parallel to each other, between the first reference plane and the second reference plane; a step in which partial tool paths for processing the workpiece are generated for each of the plurality of third reference planes on the basis of the corresponding third reference plane; and a step for generating a tool path by sequentially connecting the partial tool paths of the plurality of third reference planes.