Dual-Camera CNC Imaging for Precise Local Machining Measurement
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Solution Overview
Problem
Existing CNC machines lack the capability to accurately measure and process complex machined objects with high precision, particularly in distinguishing between areas to be machined and non-machined regions, leading to inefficient data computation and reduced accuracy.
Innovation Solution
A CNC system equipped with a long-range camera and a movable close-range camera is used to capture panoramic and close-range images, enabling the construction of a space model by determining the spatial locations of measuring points through light beam irradiation and pixel calibration, allowing for precise machining based on target processing graphics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single camera is used for imaging, then the device complexity is reduced, but the measurement precision and ability to distinguish between machined and non-machined areas deteriorates
Solution Approach 1:
The imaging system is segmented into two distinct cameras: a long-range camera for capturing the entire workpiece area and a close-range camera for capturing detailed machining areas. This segmentation allows each camera to be optimized for its specific function, with the long-range camera providing overall context and the close-range camera providing high-precision measurement data for specific regions, thereby resolving the contradiction between measurement precision and device complexity.
Solution Approach 2:
The system transitions from a single-view imaging approach to a multi-dimensional imaging approach by incorporating both long-range and close-range cameras. This dimensional change in imaging perspective enables the system to capture both global and local information simultaneously, improving measurement precision without requiring a single overly complex camera system.
2Manufacturing precision
If the entire workpiece area is processed with high computation, then the manufacturing precision is improved, but the productivity deteriorates due to unnecessary data computation
Solution Approach 1:
The system applies different processing qualities to different regions of the workpiece. The long-range camera captures the entire area for context, while the close-range camera focuses computational resources only on the specific machining areas. This local quality approach ensures high manufacturing precision for machined regions while avoiding unnecessary computation for non-machined areas, thereby maintaining productivity.
Solution Approach 2:
Instead of applying full computational processing to the entire workpiece area, the system uses partial action by focusing high-precision computation only on the relevant machining areas identified by the close-range camera. This selective processing approach maintains manufacturing precision for critical areas while significantly reducing overall computation time and improving productivity.
3Adaptability or versatility
If the CNC system processes both large-area and detailed features, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The dual-camera system provides multi-functionality by enabling the CNC system to handle both large-area overview imaging and detailed feature imaging with a single integrated setup. The long-range camera handles large-area scenarios while the close-range camera handles detailed features, making the system universally adaptable to various machining scales without requiring multiple separate systems, thus improving adaptability while controlling 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 approach enhances the accuracy and efficiency of CNC machining by reducing unnecessary data computation and improving the controllability of measurement areas, ensuring high-precision processing of both planar and curved surfaces.
Implementation Method 1
performing shooting through the long-range camera and the close-range camera to obtain a panoramic image and a close-range local image
Data Source
AI summary
The present disclosure provides a processing and imaging method, a computer numerical control (CNC) system, and a computer program medium. The CNC system is configured with a long-range camera and a movable close-range camera, and the method includes: performing shooting through the long-range camera and the close-range camera to obtain a panoramic image and a close-range local image; and displaying the panoramic image and the close-range local image in an interactive interface of the CNC system.