Dual-Anchor Sensor Mounting for Even Impact Force Detection
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Solution Overview
Problem
Existing force detection apparatuses in high-impact manufacturing machines suffer from uneven forces on piezoelectric films, leading to frequent replacements, increased production costs, and reduced productivity due to inability to adjust sensitivity to different impact forces, resulting in inaccurate measurements and increased product defect rates.
Innovation Solution
An apparatus with two anchors, comprising a housing, movable element, and rotary element, featuring expansion units, linkage, anti-rotation structures, and alignment structures, which securely fixes the sensing unit to apply even forces and allows adjustable sensitivity to adapt to varying impact forces, preventing fatigue and enhancing reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single end fixing structure is used, then the device complexity is reduced, but the reliability deteriorates due to uneven forces causing fatigue
Solution Approach 1:
The fixing structure is segmented into two separate anchoring points: a first anchoring point that fixes the first end of the sensing rod, and a second anchoring point that fixes the second end of the sensing rod. This segmentation distributes the mechanical loads and eliminates the uneven force concentration that caused fatigue in single-point fixing structures, thereby improving transducer reliability without significantly increasing overall system complexity.
2Device complexity
If the sensing apparatus has fixed sensitivity, then the device complexity is reduced, but the adaptability deteriorates when measuring different impact forces
Solution Approach 1:
The sensing apparatus incorporates adjustable sensitivity through a sensitivity adjusting mechanism that allows the sensing rod to be repositioned or reconfigured. This dynamic adjustment capability enables the same apparatus to adapt to different impact force ranges by modifying the sensing configuration, transforming a static fixed-sensitivity design into a dynamic multi-range sensing system without requiring multiple separate devices.
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
The apparatus with two anchors ensures reliable impact force detection by distributing forces evenly, reducing fatigue and increasing the sensitivity adjustment capabilities, thereby improving measurement accuracy and reducing product defects across different manufacturing environments.
Implementation Method 1
the first expansion unit and the second expansion unit are expanded to form two anchors to fix the apparatus with two anchors in the hole
Implementation Method 2
a piezoelectric film in the transducer 40 of the force detection apparatus is subjected to uneven forces
Data Source
AI summary
An apparatus with two anchors including a housing, a movable element, and a rotary element is provided. The housing includes a first expansion unit, a second expansion unit, and a linkage. First alignment structures are disposed in the movable element and anti-rotation structures are disposed in the linkage. When the movable element and the rotary element enter the housing from two ends and are coupled along an axis, the movable element and the rotary element can approach each other to expand the first expansion unit and the second expansion unit to form two anchors. The apparatus with two anchors secures a sensor in a variety of environments such as walls or machines. When the apparatus with two anchors fixes a sensor in a hole of a stamping machine, the impact force does not cause stress concentration on the sensor so as to improve the reliability of the sensor.