Optical Bore Chamfer Measurement for Metallic Wheels
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Solution Overview
Problem
Current methods for measuring the dimensions of a chamfer around a small bore in a metallic wheel are destructive, making them costly and time-consuming in a production line setting.
Innovation Solution
A non-destructive method using a light emitting device to align light with the center of the bore, detecting reflected light to produce a two-dimensional image of the chamfer, allowing for accurate dimension measurement without damaging the wheel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If destructive measurement methods are used to accurately measure chamfer dimensions, then measurement precision is improved, but productivity deteriorates due to destruction of the wheel
Solution Approach 1:
The patent uses optical imaging to create a two-dimensional copy or representation of the chamfer geometry. By projecting light and capturing the reflected pattern, the system generates an image that replicates the chamfer's dimensional characteristics without physically contacting or damaging the wheel, enabling accurate measurement of the copy rather than the original physical feature
Solution Approach 2:
The patent replaces mechanical destructive measurement methods (such as cutting or breaking the wheel to access internal dimensions) with an optical measurement system. Light emission and detection substitute for mechanical intervention, allowing chamfer dimensions to be measured from the external surface without physical destruction of the wheel
2Measurement precision
If destructive measurement methods are used to obtain accurate chamfer dimensions, then measurement precision is improved, but loss of time increases due to destruction and reconstruction needs
Solution Approach 1:
The optical system creates an immediate visual copy of the chamfer geometry through light reflection and image capture. This eliminates the time-consuming process of destructive sectioning, cleaning, and reconstruction that would be required to view and measure internal chamfer features, providing instant measurement capability
Solution Approach 2:
The measurement system is pre-configured with light emitting devices positioned to illuminate the chamfer at optimal angles before measurement begins. The optical path and detection system are prepared in advance, allowing immediate measurement upon wheel placement without requiring time-consuming setup or preparation steps
3Measurement precision
If destructive measurement methods are used to measure chamfer dimensions, then measurement precision is improved, but device complexity increases due to specialized equipment requirements
Solution Approach 1:
The optical measurement system uses universal light emitting devices and imaging sensors that can measure various features on the wheel, not just the chamfer. The same hardware platform can potentially measure different geometric features by adjusting illumination angles and detection positions, reducing the need for specialized dedicated equipment for each measurement task
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables accurate and efficient measurement of chamfer dimensions without damaging the wheel, reducing costs and time in production line settings.
Implementation Method 1
emitting a light from the light emitting device to the surface of the wheel at the bore and the chamfer... Reflected light is detected from the surface adjacent to the chamfer and the bore
Data Source
AI summary
A method for bore chamfer measurement includes providing a wheel with a surface having a bore and chamfer surrounding the bore. A light emitting device is aimed at the bore, the chamfer and a portion of the surface of the wheel adjacent to the chamfer. A light from the light emitting device is emitted to the surface of the wheel at the bore and the chamfer such that at least a portion of the light is emitted in a direction that is aligned with a center of the bore. Reflected light is detected from the surface adjacent to the chamfer and the bore. A two dimensional image of the surface and the chamfer is produced and is used to determine a dimension of the chamfer.