Portable CMM Inspection System for Complex Workpiece Defect Detection
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Solution Overview
Problem
Current manual inspection systems are incapable of producing accurate C-scans and B-scans for small to midsize complex shaped parts, which reduces the probability of detecting defects and puts parts at risk of being non-approved for use.
Innovation Solution
A portable inspection system incorporating a coordinate measurement machine (CMM) with a movable arm and data acquisition system, equipped with sensors like ultrasonic or eddy current sensors, capable of generating A-scan, B-scan, and C-scan images by moving the sensor proximate to the workpiece and communicating data for image creation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual inspection systems are used, then portability and ease of operation are improved, but measurement precision and ability to produce accurate C-scans and B-scans deteriorate
Solution Approach 1:
The patent merges the portable manual inspection system with a coordinate measurement machine (CMM) system, combining the ease of manual operation with the precision of automated measurement. The CMM provides accurate positioning and scanning capabilities while maintaining portability, enabling the system to produce reliable C-scans and B-scans for complex shaped parts.
Solution Approach 2:
The patent introduces a CMM system as an intermediary between the manual sensor and the data acquisition system. The CMM acts as a mediator that provides precise coordinate information and control, enabling accurate scanning while maintaining the portability and ease of manual operation of the inspection system.
2Adaptability or versatility
If portable inspection systems are used, then adaptability to various locations is improved, but reliability of defect detection deteriorates
Solution Approach 1:
The patent combines portable inspection capabilities with reliable defect detection by integrating a CMM system. This merging enables the system to maintain portability for various locations while achieving reliable defect detection through accurate scanning and processing capabilities provided by the CMM.
Solution Approach 2:
The patent implements feedback mechanisms through the CMM system that continuously monitor and adjust the scanning process. This feedback ensures reliable defect detection by verifying scan accuracy and providing real-time corrections, thereby maintaining high detection probability while remaining portable.
3Device complexity
If simple inspection systems are used, then device complexity is reduced, but measurement precision and inspection capability deteriorate
Solution Approach 1:
The patent segments the inspection system into distinct functional modules: a portable sensor component, a CMM positioning and control system, and a data acquisition system. This segmentation allows the system to maintain relative simplicity in each component while achieving high measurement precision through the coordinated function of these modules.
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 system increases the probability of detecting defects by providing reliable C-scan and B-scan images, enhancing the inspection reliability and allowing monitoring of complex workpieces, while being portable for use in various locations.
Implementation Method 1
ultrasonic testing could be used to generate a sound wave through a sensor or probe that is directed towards a part. When there is a flaw in the part, part of the sound wave will reflect back from the flaw and will be detected.
Implementation Method 2
single and dual current eddy current probes, utilizing electromagnetic induction, impart and detect eddy currents within a structure so as to identify cracks and/or corrosion, particularly in metallic or other conductive structures.
Data Source
AI summary
A system and method for identifying defects in a workpiece are provided. The system includes a sensor for non-destructive testing. The system also includes a movable arm carrying the sensor and being pivotally attached to a base. The movable arm includes at least one pivotable joint between the base and the sensor, and is capable of being moved such that the sensor acquires data indicative of a workpiece as the sensor travels proximate to the workpiece. A data acquisition system is capable of communicating with the sensor to create an image of at least a portion of the workpiece based on the data acquired by the sensor.