NC Roll Turning Lathe C-Z Axis Interpolation Machining
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Solution Overview
Problem
Existing roll surface machining methods require large amounts of data for numerical control, making it inefficient for producing fine protrusions or recesses on roll molds, especially for larger-sized rolls.
Innovation Solution
A roll surface machining method using a NC roll turning lathe with C-axis indexing and C-Z axis interpolation, allowing for precise positioning and movement of the cutting tool relative to the roll to form three-dimensional patterns with reduced data requirements, enabling machining of larger-sized rolls with smaller data volumes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional NC methods are used to machine fine protrusions or recesses on roll surfaces, then machining precision can be achieved, but huge volumes of data are required for numerical control
Solution Approach 1:
The machining process is segmented into two independent control components: C-axis indexing for circumferential positioning and Z-axis positioning for axial positioning. This segmentation allows the complex three-dimensional machining path to be broken down into discrete indexing steps and linear positioning steps, dramatically reducing the data volume required for numerical control while maintaining machining precision.
Solution Approach 2:
The invention introduces a dimensional transformation by adding C-axis indexing capability to the traditional Z-axis controlled lathe. This converts the continuous three-dimensional path control problem into a combination of discrete circumferential indexing and linear axial positioning, reducing the complexity and data volume of numerical control programs.
2Quantity of substance
If the roll diameter is decreased to reduce data amount, then data volume for NC is reduced, but the applicability to larger-sized rolls is limited
Solution Approach 1:
The NC roll turning lathe is designed with multi-functional capability through the combination of C-axis indexing and Z-axis positioning systems. This universal configuration allows the same machine and control method to be applied to rolls of various sizes without requiring different machining approaches or increasing data volume proportionally with roll diameter.
3Manufacturing precision
If high-capacity NC apparatus is used to handle large data volumes, then machining precision can be maintained, but device complexity and cost increase
Solution Approach 1:
By segmenting the control system into C-axis indexing function and Z-axis positioning function, the patent simplifies the NC apparatus requirements. Instead of needing high-capacity apparatus to handle complex continuous path data, the system uses simpler indexing and positioning commands that achieve the same machining precision with reduced computational requirements.
Data Source
AI summary
There is provided a roll surface machining method and apparatus for using a cutting tool to carry out ultra-precision machining in the surface of a roll with a reduced amount of data. The apparatus and method for roll surface machining includes setting a machining start position of a cutting tool with respect to the surface of the roll by C-axis indexing of the roll and positioning of the roll in the axial direction (Z-axis direction) both with respect to the cutting tool. Also the cutting tool and the roll are moved relative to each other in the axial direction of the roll by position control using C-Z axis interpolation, thereby forming a three-dimensional pattern in the surface of the roll.