Coating System Test Pattern Calibration for Real-Time Quality Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current quality control methods in coating systems, such as those used in painting motor vehicle body components, are inefficient as they only inspect for defects at the end of the painting line, leading to potential defects in a large number of components and requiring costly rectification. Additionally, automated quality control systems incur significant investment costs.
Innovation Solution
An operating method for a coating system that includes a separate testing operation for quality assurance, where a test pattern is applied to a test surface, and deviations from the intended pattern are detected and corrected. This method uses control signals to adjust the coating system, ensuring precise application of the coating agent and minimizing overspray.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If quality inspection is performed only at the end of the painting line, then the inspection process is simple, but a large number of defective components are produced and costly rectification is required
Solution Approach 1:
The patent applies preliminary action by performing quality inspection during the coating process rather than after completion. The camera system captures images of the component surface in real-time during coating application, allowing defects to be detected and addressed before they propagate to multiple components, thereby reducing waste and rectification costs
2Measurement precision
If automated quality control systems are implemented, then inspection accuracy is improved, but investment costs increase significantly
Solution Approach 1:
The patent implements multi-functionality by integrating the camera system into the coating robot's existing structure. The same robotic system that applies the coating also positions and operates the camera for inspection, eliminating the need for separate automated inspection equipment and reducing overall system complexity and investment costs
Solution Approach 2:
The patent merges the quality inspection function with the coating application process. The camera is mounted on the coating robot's manipulator arm, combining two functions (coating and inspection) into a single integrated system, thereby reducing device complexity and investment requirements while maintaining measurement precision
3Quantity of substance
If conventional spray painting is used, then coating coverage is achieved, but significant overspray is generated causing material loss and environmental issues
Solution Approach 1:
The patent replaces the conventional spray painting mechanical system with a print head-based coating applicator. This system uses precision positioning and direct deposition mechanisms rather than aerosol spray, significantly reducing overspray generation while maintaining adequate coating coverage on the component surface
Data Source
AI summary
The disclosure relates to an operating method for a coating system (e.g. painting installation) for coating components (e.g. motor vehicle body components). Prior to the actual coating operation, the operating method provides for a testing operation comprising the following:Specification of a test pattern to be applied to a test surface,Determination of control signals for controlling the coating system, the control signals being determined from the predetermined test pattern and being intended to control the coating system in operation in such a way that the applicator applies the test pattern to the test surface,controlling the coating system with the control signals so that the coating system applies the test pattern to the test surface with the applicator,recording an image of the test pattern applied to the test surface by means of a sensor,determining a deviation between the predetermined test pattern and the recorded image of the actually applied test pattern, anddetermining correction values for the control signals depending on the deviation between the predetermined test pattern and the recorded image of the actually applied test pattern.