Artificial Tooth Machining with Rotated Reference Positioning
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Solution Overview
Problem
Conventional artificial tooth processing devices face challenges in accurately measuring the reference position of a workpiece due to wear on the workpiece holder, leading to measurement errors, especially when processing multiple artificial teeth from a single workpiece.
Innovation Solution
The proposed solution involves an artificial tooth processing device with a control portion that sets a first reference position, processes one end of the workpiece to form a first artificial tooth, rotates the workpiece holder by a predetermined angle, sets a second reference position, and processes the other end to form a second artificial tooth, thereby avoiding the worn area and minimizing measurement errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the processing tool comes into contact with the workpiece holder to detect reference position, then the reference position can be measured, but wear occurs on the workpiece holder leading to measurement errors
Solution Approach 1:
A reference position setting tool is introduced as an intermediary between the processing tool and the workpiece holder. This dedicated tool is specifically designed for reference position detection without being used for actual tooth processing, thereby preventing wear on the workpiece holder while maintaining measurement accuracy.
Solution Approach 2:
The functions are segmented into two separate tools: a processing tool for actual tooth fabrication and a reference position setting tool for measurement. This segmentation allows each tool to be optimized for its specific function, with the reference position setting tool dedicated solely to measurement tasks.
2Productivity
If the same workpiece holder is used for multiple artificial teeth processing, then productivity increases, but reference position measurement errors accumulate due to wear
Solution Approach 1:
The reference position setting tool serves as a mediator that enables multiple processing operations on the same workpiece holder without transferring wear to the holder itself. The dedicated measurement tool absorbs any contact wear, preserving the workpiece holder's measurement accuracy for repeated use.
Solution Approach 2:
The reference position setting tool creates a precise reference point without being consumed in the process. It copies the reference position information accurately multiple times without degrading, unlike the processing tool that causes wear with each contact.
Data Source
AI summary
An artificial tooth processing device includes a spindle base that is driven in up-down and left-right directions; a spindle that is mounted on the spindle base and rotated by a motor; a processing tool that is mounted on an axis end of the spindle and rotated together with the spindle; a workpiece holder that fixes a workpiece; a workpiece mounting portion on which the workpiece holder is mounted, and which is rotationally driven about an axis of the workpiece holder and driven in a back-forth direction; and a control portion that controls driving of the spindle base in the up-down and left-right directions, driving of the workpiece mounting portion in rotation and in the back-forth direction, and driving of the spindle and the processing tool in rotation.