Sheet Workpiece Alignment Using Optical Tilt and Rotation Correction
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Solution Overview
Problem
Sheet workpieces in industrial manufacturing often experience rotation, translation, and deformation during processing, leading to errors due to their large area and small thickness, which challenges accurate processing.
Innovation Solution
An Industrial Internet of Things system is developed, comprising a detecting module and a processing module, using a camera with a fixed focal length to capture images, perform sharpness analysis, calculate tilt data, and adjust the workpiece to a completely horizontal state, enabling accurate adjustments of the bearing mechanism through tilt, rotational, and horizontal adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional suction cup manipulation is used to grasp and position sheet workpieces, then the workpiece can be held and moved, but the workpiece is prone to tilt and shift due to inaccurate suction cup control
Solution Approach 1:
The patent replaces the traditional mechanical suction cup manipulation system with an optical measurement and automated control system. A camera captures images of the workpiece, and a control system processes these images to determine precise positioning data, eliminating the reliance on mechanical suction cup control that causes tilting and shifting.
Solution Approach 2:
The patent uses optical imaging to create a digital copy (image) of the workpiece position and orientation. This optical copy is then processed to extract positioning information, allowing for non-contact measurement and control that avoids the mechanical interference problems of traditional suction cup methods.
2Measurement precision
If manual alignment and adjustment of sheet workpieces is performed, then positioning accuracy can be improved, but the processing time and complexity increase significantly
Solution Approach 1:
The system enables automatic self-measurement and self-positioning of the workpiece. The camera captures the workpiece image, the control system automatically processes this image to determine positioning data, and the data is directly used for alignment, eliminating the need for manual measurement and adjustment operations.
Solution Approach 2:
Manual alignment operations are replaced by an automated optical-mechanical system. The camera and control system work together to automatically determine workpiece position and orientation, and this information is used to guide positioning without human intervention, significantly reducing adjustment time.
3Measurement precision
If multiple adjustment operations (tilt, rotation, horizontal) are performed separately, then comprehensive alignment can be achieved, but the adjustment process becomes complex and time-consuming
Solution Approach 1:
The patent merges multiple separate adjustment operations (tilt adjustment, rotation adjustment, horizontal adjustment) into a single integrated process. The camera captures one image that contains all necessary positioning information, and the control system processes this single image to generate comprehensive positioning data that guides all adjustment operations simultaneously, rather than performing separate adjustments for each degree of freedom.
Data Source
AI summary
The present disclosure provides an Industrial Internet of Things, a control method and storage medium for sheet workpiece processing. The Industrial Internet of Things includes a detecting module and a processing module; the detecting module is configured to detect a machining process of a sheet workpiece to obtain detection information; and the processing module is configured to adjust a production device based on the detection information. By detecting and adjusting a sheet workpiece, on the one hand, the present disclosure can effectively improve the subsequent processing accuracy of the sheet workpiece, on the other hand, the present disclosure can simplify an adjustment process and improve the adjustment efficiency of a bearing mechanism of a target sheet workpiece.