Elastic Deformation Alignment Tabs for Precision Component Mating
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Solution Overview
Problem
Current alignment systems for mating components in manufacturing processes suffer from significant positional variation due to manufacturing variances, leading to large and varying gaps and poor fits between components.
Innovation Solution
An alignment system utilizing upstanding elongated tabs and deformable elongated apertures, where the tabs are wider than their respective apertures, allowing for elastic deformation upon mating, which averages positional errors and eliminates gaps by creating an over-constrained interface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional male alignment features (bosses) and female alignment features (holes or slots) are used with predetermined clearance to accommodate manufacturing tolerances, then the alignment system is simple and easy to manufacture, but significant positional variation occurs between mated components resulting in large and varying gaps and poor fit
Solution Approach 1:
The patent changes the dimensional parameters of the alignment features by making tabs wider than their corresponding apertures, eliminating the traditional clearance gap. This parameter change transforms the alignment mechanism from a clearance-based system to an interference-fit system that actively compensates for manufacturing variations through elastic deformation.
Solution Approach 2:
The patent introduces dynamic behavior to the alignment system by allowing the aperture walls to elastically deform during the mating process. This dynamic response enables the system to adapt to manufacturing tolerances in real-time, transforming static clearance gaps into dynamic elastic deformation that actively maintains alignment precision.
2Ease of manufacture
If clearance is provided between male and female alignment features to match anticipated size and positional variation tolerances, then manufacturing variance is accommodated, but positional variation between mated components increases leading to poor fit and large gaps
Solution Approach 1:
The patent converts the harmful effect of manufacturing tolerances into a beneficial elastic deformation mechanism. Instead of accepting clearance gaps as inevitable, the interference-fit design causes the aperture walls to deform elastically in response to manufacturing variations, transforming potential misalignment into a self-correcting mechanism that improves rather than degrades assembly precision.
Solution Approach 2:
The patent fundamentally changes the clearance parameter to an interference-fit parameter, where tabs are intentionally made wider than apertures. This parameter inversion transforms the system from passively accommodating tolerances through clearance to actively compensating for them through controlled elastic deformation, thereby improving positional consistency while maintaining ease of manufacture.
3Manufacturing precision
If tabs are made wider than their respective apertures to eliminate gaps, then precise location and alignment are achieved, but elastic deformation is required which increases device complexity
Solution Approach 1:
The patent implements a self-service alignment mechanism where the deformable aperture walls automatically adjust to accommodate tab insertion and achieve precise alignment without external intervention. The elastic deformation occurs naturally during the mating process, allowing the system to self-correct for manufacturing variations and establish precise alignment autonomously.
Solution Approach 2:
The patent changes the structural parameter of the aperture from rigid to deformable, enabling it to elastically yield when tabs are inserted. This parameter change allows the system to achieve precise alignment through controlled deformation rather than requiring complex adjustment mechanisms, thereby improving alignment precision with minimal increase in overall device complexity.
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
This solution achieves precise location and alignment of components by elastically deforming the aperture walls, reducing or eliminating gaps and misalignment, resulting in a more accurate and stable assembly.
Implementation Method 1
each aperture is configured to elastically deform upon disposition of each tab into each respective aperture at an interface between the tab wall of each tab and the aperture wall of each respective aperture
Data Source
AI summary
An alignment system for aligning components includes a first component, a second component, upstanding, elongated tabs connected to at least one of the components, each elongated tab having a tab wall, and deformable elongated tab apertures formed in at least one of the components, each deformable tab aperture comprising opposing deformable aperture walls. The apertures are geometrically distributed in coordinated relationship to a geometrical distribution of the elongated tabs such that each elongated tab is receivable into a respective aperture and each tab has a width larger than a cross-sectional width of its respective aperture measured in a same direction. Each aperture is configured to elastically deform upon disposition of each elongated tab into its respective tab aperture at an interface between the tab wall and the aperture wall.