Ceramic Strength Detection Using Force Sensing and DIC Imaging
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Solution Overview
Problem
Existing ceramic strength detection technologies lack accuracy in quantifying mechanical behavior, overlook microstructural changes, and are destructive, leading to material waste and increased production costs.
Innovation Solution
A self-rotating turntable assembly with a clamping mechanism, feeding mechanism, and visual assembly, combined with a force sensing element and digital image correlation (DIC) algorithm, to detect ceramic workpiece strength by analyzing pressure-deformation curves.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conveyor belt detection mode with pressing mechanism is used, then the detection process is simple and easy to operate, but the mechanical behavior lacks accurate quantification and the accuracy of test results is limited
Solution Approach 1:
The patent replaces the conventional mechanical pressing mechanism with a combined system that includes a pressing assembly with telescopic pressing head, spring, and force sensing element. This substitution introduces precise force measurement capabilities while maintaining the mechanical pressing function, thereby improving measurement precision without significantly complicating the operation process.
Solution Approach 2:
The patent introduces a force sensing element as an intermediary between the pressing mechanism and the ceramic workpiece. This intermediary component accurately measures the force applied during pressing, providing quantitative data that bridges the gap between simple mechanical operation and precise measurement requirements.
2Productivity
If only crack appearance is used as the judging standard, then the detection process is simple and fast, but microstructural changes or micro-cracks before cracks appear are ignored, affecting comprehensiveness and accuracy
Solution Approach 1:
The patent applies preliminary action by using the visual assembly to detect and record microstructural changes and micro-cracks before they develop into visible cracks. The system captures images at multiple stages of the pressing process, enabling early detection of potential failures while maintaining efficient production flow.
Solution Approach 2:
The patent implements feedback by continuously monitoring the ceramic workpiece during the pressing process through the visual assembly. The system provides real-time feedback on microstructural changes, allowing for dynamic adjustment of the pressing process and comprehensive evaluation of ceramic strength beyond simple crack detection.
3Measurement precision
If too much pressure is applied in the press test, then the strength detection is thorough, but it is destructive and causes damage to good workpieces, increasing material waste and production costs
Solution Approach 1:
The patent uses feedback from the force sensing element to monitor the pressing force in real-time and prevent excessive pressure application. The system automatically stops or adjusts the pressing process when predetermined force thresholds are reached, ensuring thorough strength detection while protecting good workpieces from damage and reducing material waste.
Solution Approach 2:
The patent applies partial action by using the telescopic pressing head with spring to apply controlled, incremental pressure rather than full excessive force. This approach allows for gradual loading that detects strength characteristics without necessarily causing complete failure, thereby reducing destructive testing and material waste.
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
Accurately measures ceramic workpiece strength, reduces material waste, and enhances detection accuracy by capturing microstructural changes, improving production efficiency and quality control.
Implementation Method 1
a telescopic pressing head sleeved with a spring
Implementation Method 2
one end of the spring is connected with a force sensing element for detecting a force value
Data Source
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AI summary
Disclosed are a strength detection device and method for ceramic machining. The strength detection device includes a self-rotating turntable assembly, a feeding mechanism and a strength detection mechanism. The feeding mechanism is provided above the accommodating groove and is configured to feed the ceramic workpiece into the accommodating groove. The strength detection mechanism includes a lifting assembly and a visual assembly. The driving end of the lifting assembly is connected with a pressing assembly, the pressing assembly includes a telescopic pressing head, the telescopic pressing head is sleeved with a spring, and one end of the spring is connected with a force sensing element configured to detect a force value. The visual assembly is provided on one side of the pressing assembly and is configured to detect the appearance pattern of the ceramic workpiece when the ceramic workpiece is pressed by the pressing assembly.