Optical Insertion Quality Detection for Hole-Fitted Components
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Solution Overview
Problem
Existing methods are inadequate for easily determining the quality of insertion of components like grommets, rubber plugs, and threaded components into various types of holes in work objects, particularly in complex assemblies such as wave-motion gearing devices.
Innovation Solution
An insertion quality determinator that assesses the quality of insertion based on the position of a specific part of the insertion component in a direction perpendicular to the hole, utilizing a position sensor or imaging apparatus to capture and analyze the dimensional or positional data of the component's head, allowing for the differentiation between proper and improper insertions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional distance measurement methods are used to determine fitting state, then measurement can be performed, but it is not easy to determine the fitting state for insertion components
Solution Approach 1:
The patent replaces mechanical distance measurement methods with optical imaging technology. A camera captures images of the insertion component's head, and image processing algorithms automatically determine insertion quality based on the head's position and shape in the captured images, eliminating the need for complex mechanical measurement systems.
Solution Approach 2:
The patent creates an optical copy (image) of the insertion component's head and analyzes this copy to determine insertion quality. By capturing the head's position and shape through imaging and comparing it against reference data, the system achieves easy and accurate quality determination without direct physical measurement.
2Measurement precision
If insertion quality is determined using complex assembly methods, then accurate determination may be achieved, but the determination process becomes complicated
Solution Approach 1:
The patent extracts only the necessary information for quality determination - specifically the position and shape of the insertion component's head - from the entire assembly process. By focusing measurement on this critical feature alone, the system achieves accurate determination while maintaining simplicity.
Solution Approach 2:
The insertion component's head itself provides the measurement information needed for quality determination. The head's position and shape naturally indicate whether insertion is proper or improper, eliminating the need for external complex measurement systems. The component essentially measures itself through its own geometric characteristics.
Data Source
AI summary
An insertion quality determinator is a determinator 1 that determines a quality of insertion of an insertion component 5 inserted into a hole formed in a work object. The insertion component 5 at least includes a head having the size that is impossible to be inserted into the hole, and a pillar-shaped body that extends from the head and has the thickness that is possible to be inserted into the hole. The determinator is configured to determine the quality of insertion based on positions of given parts P1-P4 of the head of the insertion component 5 inserted into the hole, in a direction perpendicular to an extending direction of the hole.