Cylindrical Workpiece Grooving With Vertex-Based Blade Alignment
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Solution Overview
Problem
Existing workpiece processing devices face challenges in achieving high accuracy during grooving of cylindrical-shape workpieces, particularly when the central axis of the workpiece and the workpiece rotation axis do not match, leading to variations in processing accuracy and characteristics, such as noise in ultrasonic images, and limiting the size of workpieces that can be processed.
Innovation Solution
A workpiece processing device that includes a supporting unit for rotational movement around a central axis, a cutting unit with a blade, a detecting unit for calculating vertex positions, and a control unit to adjust the cutting position and blade direction to ensure perpendicularity, allowing for accurate grooving without requiring the central axis and rotation axis to match, and accommodating various workpiece sizes and shapes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the central axis of the workpiece and the workpiece rotation axis are made to match each other to ensure perpendicular incision direction, then the processing accuracy of grooving is improved, but the workpiece attaching accuracy requirement increases and the device complexity increases
Solution Approach 1:
The patent applies preliminary action by measuring the workpiece central axis position and calculating the deviation from the rotation axis before processing. This pre-measurement and pre-calculation of the offset amount allows the system to compensate for misalignment during the actual grooving operation, thereby maintaining high processing accuracy without requiring extremely precise workpiece attachment
Solution Approach 2:
The patent implements feedback by using a detection unit to measure the actual position of the workpiece central axis, comparing it with the rotation axis position, and using this information to calculate and apply the necessary offset compensation. This closed-loop feedback mechanism ensures that even with varying workpiece attachment accuracy, the incision direction remains perpendicular to the workpiece surface
2Adaptability or versatility
If the distance between the workpiece rotation axis and the blade is increased to process larger workpieces, then the adaptability to various workpiece sizes is improved, but the device size increases and the cost increases
Solution Approach 1:
The patent applies dynamics by making the workpiece supporting unit movable, allowing it to adjust its position along the rotation axis. This dynamic positioning capability enables the system to process workpieces of various sizes by optimizing the distance between the workpiece and blade for each specific workpiece, rather than requiring a fixed large-distance configuration that would increase device size
Solution Approach 2:
The patent changes the parameter of workpiece supporting unit position dynamically based on the specific workpiece being processed. By adjusting this position parameter, the system can accommodate different workpiece sizes and shapes without requiring a permanently large device configuration, thus maintaining adaptability while controlling device size
Data Source
AI summary
A workpiece processing device includes a workpiece supporting unit configured to support a workpiece so that the workpiece is rotatable around a first axis parallel to a central axis of the workpiece, a cutting unit having a blade configured to cut a surface of the workpiece, a detecting unit configured to calculate a position of a vertex of the surface in a direction along a second axis which is perpendicular to the first axis and parallel to the blade, and a control unit configured to control the workpiece supporting unit so that a cutting position on the surface is located at a vertex in the direction along the second axis, and relatively move the workpiece supporting unit and the cutting unit so that an incision direction of the blade is on a plane defined by the central axis and the cutting position, thereby forming a groove at the cutting position.