3D Toolpath Machining of Rotationally Symmetric Surfaces
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Solution Overview
Problem
Existing machining methods fail to accurately manufacture machine components with rotation symmetry planes, particularly those having ridgelines at angles greater than 0° and smaller than 90° with respect to the axial line of rotation, due to limitations in controlling the cutting edge's inclination and track during machining.
Innovation Solution
A method involving a three-dimensional orthogonal coordinate system where a linear cutting edge is positioned and fed along a track with X, Y, and Z axis components, allowing for precise control of the cutting edge's inclination and movement to accurately manufacture machine components with rotation symmetry planes defined by ridgelines at specific angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a linear cutting edge is fed along a simple track in conventional machining methods, then the machining process is simple and efficient, but the accuracy of the ridgeline angle with respect to the axial line of rotation deteriorates
Solution Approach 1:
The patent applies dimensionality change by introducing a complex three-dimensional track with X, Y, and Z axis components instead of conventional simple tracks. The cutting edge is positioned at cutting start positions with both X and Y coordinates (rather than just X), and fed along a track that includes all three spatial dimensions. This enables precise control of the ridgeline angle accuracy while maintaining machining efficiency through automated CNC control.
2Manufacturing precision
If the cutting edge is positioned and fed along a complex three-dimensional track, then the ridgeline angle accuracy is improved, but the machining process complexity increases
Solution Approach 1:
The patent applies self-service through automated computer numerical control (CNC) that automatically calculates and executes the complex three-dimensional cutting edge track. The control system autonomously manages the multi-axis coordination, cutting start position determination, and feed rate control along the X, Y, and Z axes. This eliminates the need for manual complex positioning operations while achieving high rotation symmetry plane accuracy, making the complex process easy to operate through automated programming and execution.
Data Source
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AI summary
A manufacturing method, a manufacturing apparatus, a computer readable recording medium, and a program for manufacturing a machine component having a rotation symmetry plane are provided. According to one embodiment, the manufacturing method includes positioning a linear cutting edge (2A) inclined at an angle greater than 0° and smaller than 90° with respect to a Z axis at a cutting start position displaced from a position on an X axis along a direction of a Y axis in a three-dimensional orthogonal coordinate system in which an axial line of rotation of a rotation symmetry plane (1A) is defined as the Z axis, an axis in a radial direction of the rotation symmetry plane is defined as the X axis, and an axis orthogonal to both of the Z axis and the X axis is defined as the Y axis and machining the rotation symmetry plane (1A) by feeding the cutting edge (2A) from the cutting start position along a track having an X axis component, a Y axis component, and a Z axis component while the cutting edge is in contact with a rotating machine component (1).