Chamfering Wheel Coaxial Processing for Runout Control
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Solution Overview
Problem
The life of the grinding wheel portion in chamfering wheels is dependent on the geometrical accuracy of the chamfering wheel, necessitating high-accuracy manufacturing processes to ensure precise formation of the disk base body and centering grooves for optimal performance.
Innovation Solution
A method involving coaxial processing of the disk's reference surface, fitting hole, and centering groove, using machine tools to form these components simultaneously, ensuring the grinding wheel portion is concentric and accurately positioned, and utilizing diamond powder for the grinding wheel, with specific surfaces for runout detection and adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple components (reference surface, fitting hole, centering groove) are processed separately, then manufacturing flexibility is maintained, but manufacturing precision and coaxiality deteriorate
Solution Approach 1:
The patent combines the processing of the reference surface, fitting hole, and centering groove into a single coaxial processing operation. By using a machine tool that can simultaneously or sequentially process all three components while maintaining the same coaxial reference, the invention ensures that all components share a common center axis, thereby achieving high coaxiality without requiring multiple separate setup operations.
Solution Approach 2:
The invention performs preliminary coaxial processing to establish the reference surface, fitting hole, and centering groove with predetermined coaxial relationships before the grinding wheel portion is attached. This preliminary establishment of coaxiality ensures that subsequent operations and assemblies maintain the precise geometric relationships required for high-precision chamfering operations.
2Duration of action of moving object
If the grinding wheel portion is made larger to extend operational life, then duration of action increases, but geometrical accuracy and runout control worsen
Solution Approach 1:
The invention introduces the centering groove as an intermediary feature that mediates between the grinding wheel portion and the rotary shaft part. This centering groove provides a precise mechanical interface that ensures accurate centering and minimizes runout, allowing the grinding wheel to maintain high geometrical accuracy even as it wears during extended operational use. The centering groove acts as a reference feature that compensates for variations in the grinding wheel's outer peripheral surface.
3Manufacturing precision
If high-precision coaxial processing is performed, then manufacturing precision improves, but processing time and productivity decrease
Solution Approach 1:
The invention segments the manufacturing process into distinct phases: a preliminary coaxial processing phase that establishes the reference surface, fitting hole, and centering groove with high precision, followed by a subsequent phase where the grinding wheel portion is attached and finalized. This segmentation allows the high-precision coaxial operations to be performed once on the disk base body, rather than requiring repeated precision adjustments during assembly, thereby improving overall productivity while maintaining high geometrical accuracy.
Data Source
AI summary
A method of manufacturing a chamfering wheel includes: forming, to be concentric by coaxial processing: a reference surface serving as one of a pair of side surfaces of a disk; a fitting hole into which a rotary shaft part is fitted in the disk; a first surface of an annular centering groove, the first surface being provided on the reference surface and used to detect a runout corresponding to a runout of an outer peripheral surface of the chamfering wheel when the chamfering wheel rotates; and a second surface of the centering groove, the second surface being provided on the reference surface, adjacent to the first surface, and used to detect a runout of the reference surface when the chamfering wheel rotates; and forming a grinding wheel portion on an outer peripheral surface of the disk.