CNC Machined Region Measurement Using Optical Coordinate Detection
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Solution Overview
Problem
Existing machining technologies are not accurate in determining the machined region, making it difficult for operators to precisely define the machined area.
Innovation Solution
A method involving obtaining coordinates of measurement points on a machined material, determining the machined region based on these coordinates, and displaying the region on a target page using a computer numerical control machine equipped with a movable head and light emitting assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional machining measurement methods are used, then the operation process is simple, but the measurement precision and machining accuracy are insufficient
Solution Approach 1:
The patent replaces traditional mechanical measurement methods with an optical measurement system. A camera captures images of the machined material surface, and image processing algorithms automatically determine the machined region boundaries. This substitution of mechanical measurement with optical-digital measurement significantly improves measurement precision while reducing manual operation complexity.
Solution Approach 2:
The patent creates a digital copy of the machined material surface through image capture. The camera captures the actual surface including markings and features, creating a digital representation that can be processed to identify the machined region. This copying approach enables precise determination of boundaries without direct physical contact or complex mechanical measurement devices.
2Productivity
If manual determination of machined region is used, then the device complexity is low, but the productivity and efficiency are reduced
Solution Approach 1:
The system performs self-measurement and self-determination of the machined region. The camera automatically captures the surface, the processing unit automatically identifies boundaries and calculates coordinates, and the system automatically generates the machined region definition without requiring manual measurement or operator intervention. This automation dramatically improves productivity while the integrated design keeps complexity manageable.
Solution Approach 2:
The system establishes a feedback loop where the captured image of the actual machined surface is processed to determine the machined region, which then feeds back into the control system for precise machining operations. This closed-loop feedback ensures high productivity through automated decision-making while maintaining accuracy through continuous verification against the actual surface conditions.
3Manufacturing precision
If precise machining operations are implemented, then the manufacturing precision is improved, but the device complexity increases
Solution Approach 1:
The numerical control system is designed with multi-functionality, integrating image capture, image processing, coordinate calculation, and machining control into a single unified system. The same control unit that manages the movable head also processes the image data and determines the machined region. This universal design achieves high manufacturing precision without proportionally increasing device complexity through functional integration.
Solution Approach 2:
The patent introduces an image as an intermediary between the physical machined surface and the control system. Instead of direct mechanical measurement or complex sensor arrays, the camera captures the surface state and converts it into digital image data that serves as an intermediary representation. This intermediary enables precise machining control through straightforward image processing algorithms rather than complex direct measurement systems.
Data Source
AI summary
A method of measuring a machined region includes: obtaining a coordinate of at least one measurement point, where the coordinate of the at least one measurement point corresponds to a target position on a surface of a machined material; determining a machined region based on the coordinate of the at least one measurement point; and controlling a target page to display the machined region. The method provided by the present application helps to accurately and higher efficiently machine the machined material.