3D-Scanned Prism Assembly for Precise Robotic Fitting
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Solution Overview
Problem
Conventional methods for assembling prisms to fitting bodies are inefficient and result in low product yield due to manual assembly, which lacks precision and accuracy.
Innovation Solution
A method and apparatus that utilize scanned data to generate 3D models of the prism and fitting body, compare them to theoretical models, and control a manipulator to accurately assemble the prism to the fitting body, eliminating the need for manual assembly and ensuring high precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual assembly method is used, then operation flexibility is maintained, but assembly efficiency is poor and productivity is low
Solution Approach 1:
The patent replaces the manual mechanical assembly system with an automated system comprising a scanner, processor, and manipulator. The scanner acquires spatial information, the processor generates 3D models and compares them with theoretical models, and the manipulator automatically positions and assembles the prism to the fitting body, eliminating manual intervention and significantly improving assembly efficiency
Solution Approach 2:
The assembly system performs self-positioning and self-alignment through automatic 3D scanning and model comparison. The system independently acquires spatial data, generates physical 3D models, compares them with theoretical models to determine position deviations, and automatically adjusts the manipulator positioning without requiring manual measurement or adjustment, achieving self-service assembly
2Manufacturing precision
If manual assembly method is used, then device complexity is low, but manufacturing precision is insufficient
Solution Approach 1:
The patent replaces simple manual mechanical operations with an automated system integrating scanning technology, 3D modeling, and robotic manipulation. This substitution enables precise measurement of spatial positions and accurate control of assembly movements, achieving high manufacturing precision despite increased device complexity
Solution Approach 2:
The system implements feedback control by comparing the physical 3D model (obtained through scanning) with the theoretical 3D model to determine position deviations. This feedback information is used to adjust the manipulator positioning, ensuring high assembly precision through closed-loop control
3Manufacturing precision
If automated assembly with scanning and 3D modeling is implemented, then assembly precision is improved, but device complexity increases
Solution Approach 1:
The manipulator system is designed with multi-functionality, serving both as a positioning device and an assembly device. The same manipulator that positions components also performs the final assembly operation, reducing the need for separate specialized devices and thereby limiting the increase in overall system complexity
Solution Approach 2:
The processor acts as an intermediary between the scanner and the manipulator. It receives spatial data from the scanner, generates 3D models, performs comparisons with theoretical models, and translates the results into control commands for the manipulator. This intermediary role simplifies the overall system architecture by centralizing the control logic
Data Source
AI summary
The present application provides a method, a device, and an apparatus for assembling a prism. The method includes: acquiring scanned data by scanning a space where the prism and the fitting body are disposed in response to the prism being placed at a first predetermined station and the fitting body being placed at a second predetermined station; generating a physical 3D model by three-dimensional reconstruction on the prism, the fitting body, and the space based on the scanned data; acquiring comparison data by comparing the physical 3D model with a theoretic 3D model, wherein the theoretic 3D model is a theoretic model for fitting the prism to the fitting body; and controlling, based on the comparison data, a manipulator to fit the prism at the first predetermined station to the fitting body at the second predetermined station.