XY All-Directional Precision Alignment Platform With 360-Degree Rotation
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Solution Overview
Problem
Existing XY all-directional alignment platforms fail to achieve true θ angle rotations, are excessively thick due to complex structures, and experience component interference, limiting their precision and suitability for light and thin assembly requirements in industries like liquid-crystal display manufacturing and semiconductor manufacturing.
Innovation Solution
An XY all-directional precision alignment platform with a θ-angle rotating platform utilizing an arcuate gear, worm shaft mechanism, and sliding blocks, allowing for 360° rotation and a reduced four-layer thickness, enabling precise and interference-free movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If indirect use of XXY axes or XYY axes is employed to achieve θ angle rotation, then rotation function is provided, but the structure becomes complex and thickness increases to 6 layers
Solution Approach 1:
The patent extracts the θ angle rotation function from the complex XXY/XYY indirect mechanism and implements it through a dedicated, simplified module. The rotating platform with arcuate gear and worm shaft mechanism is separated as an independent functional unit that stacks directly onto the XY platform, reducing the overall structure from 6 layers to 4 layers while providing true 360° rotation capability.
Solution Approach 2:
The patent applies nesting by stacking the θ-angle rotating platform directly onto the XY-axes moving platform. The rotating platform contains nested components (arcuate gear, worm shaft mechanism, sliding blocks) within a compact four-layer structure, allowing multiple functions (XY movement + θ rotation) to be integrated in a thin profile without the 6-layer complexity of indirect mechanisms.
2Adaptability or versatility
If indirect mechanisms are used for θ angle rotation, then rotation capability is achieved, but component interference occurs and precision is limited
Solution Approach 1:
The patent segments the alignment platform into distinct functional modules: an XY-axes moving platform and a separate θ-angle rotating platform. Each module has dedicated guideway units and movement mechanisms that operate independently without interference. The sliding blocks on the rotating platform engage with guideway units on the XY platform through a controlled interface, eliminating the component interference that plagues indirect mechanisms while maintaining high alignment precision.
3Manufacturing precision
If extended components are used to achieve high precision XY movement, then precision is improved, but the platform thickness and weight increase
Solution Approach 1:
The patent employs thin-film-like guideway units that are integrated directly into the platform surfaces rather than using bulky extended components. The guideway units on both the XY platform and rotating platform provide precise guidance through compact, planar structures that maintain high movement precision while keeping the overall platform thin and lightweight, avoiding the need for extended mechanical components that would increase weight and thickness.
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 solution enables precise 360° θ angle rotation and a slim, lightweight design, addressing the limitations of existing platforms by ensuring high precision and conforming to industrial requirements for alignment tasks.
Implementation Method 1
a worm shaft mechanism, engaged correspondingly with said arcuate gear
Implementation Method 2
an arcuate gear, provided on a bottom of said platform
Implementation Method 3
a guideway unit, attached to at least one sliding block
Data Source
AI summary
An XY all-directional precision alignment platform is provided and includes an XY-axes moving platform including X-axis moving platform and Y-axis moving platform, the X-axis and Y-axis moving platforms being stacked together, and a θ-angle rotating platform, the θ-angle rotating platform stacked onto the carrier surface thereof; wherein the θ-angle rotating platform is driven to perform precise θ-angle rotation achieving 360° and is of a four-layered thickness only, achieving the goal of having a light and thin product.