Optical Sensor Contamination Detection for Vehicle Bonding
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Solution Overview
Problem
Existing methods for applying sealing profiles on vehicle body components result in poorly adhering connections due to contamination, leading to increased cleaning element consumption and operational costs.
Innovation Solution
A procedure using an optical sensor, preferably a smart camera, to detect contamination on the surface of vehicle body components before applying sealing profiles, ensuring a clean and contamination-free surface for adhesive application, and a cleaning device with adjustable cleaning intensity based on contamination levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the rotational speed of the cleaning element is increased to improve cleaning intensity, then the cleaning effectiveness is improved, but the consumption of the cleaning element increases and operating costs increase
Solution Approach 1:
The optical sensor detects contamination on the surface area before the cleaning element is applied. This preliminary detection allows the system to determine whether cleaning is actually needed, preventing unnecessary cleaning operations and thus reducing cleaning element consumption while ensuring adhesive bond quality when contamination is present
Solution Approach 2:
The system changes the operational parameters of the cleaning device based on detection results. When contamination is detected, the cleaning element is applied with appropriate rotational speed; when no contamination is detected, cleaning is skipped or performed with reduced intensity, thereby optimizing cleaning element consumption while maintaining bond quality
2Reliability
If the rotational speed of the cleaning element is increased to improve cleaning intensity, then the cleaning effectiveness is improved, but operating costs increase
Solution Approach 1:
The optical sensor performs preliminary detection of contamination before cleaning operations. This allows the system to avoid unnecessary high-energy cleaning operations when the surface is already clean, reducing energy consumption and operating costs while ensuring that cleaning is performed with appropriate intensity when contamination is present
Solution Approach 2:
The cleaning device operational parameters including rotational speed are adjusted based on contamination detection results. The system only applies high-intensity cleaning when contamination is detected, optimizing energy usage and reducing operating costs while maintaining adhesive bond quality
3Reliability
If cleaning is performed to remove contaminants and improve adhesive bonding, then bond quality is improved, but the process complexity increases
Solution Approach 1:
An optical sensor is introduced as an intermediary between the surface inspection and cleaning/application processes. This sensor provides objective contamination detection data that guides whether cleaning is needed, simplifying the decision-making process and enabling automated control while ensuring bond quality
Solution Approach 2:
The system implements a feedback loop where the optical sensor continuously monitors surface contamination and provides real-time information to control the cleaning device. This feedback mechanism automates the cleaning decision process, reducing operational complexity while ensuring consistent adhesive bond quality through data-driven cleaning execution
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
Improves the reliability of adhesive connections by ensuring surfaces are free of contaminants and corrosion protection residues, reducing operational costs and enhancing customer satisfaction by preventing bad connections.
Implementation Method 1
The defined surface area is detected by an optical sensor. The optical sensor is preferably an imaging sensor, in particular a CCD or CMOS sensor
Implementation Method 2
In a further advantageous embodiment of the method, the surface area detected by the optical sensor is irradiated with UV light (UV: ultraviolet). In particular, the surface area detected by the optical sensor is irradiated with light with a wavelength between 100 nm and 380 nm (nm: nanometers)
Data Source
Figure 1~2
Figure 3
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AI summary
The present invention relates to a method for testing the surface (2) of a vehicle body component (1) for the presence of a contaminant (3, 31) in connection with the bonding of a component (8) to the body component (1) and, in particular, in connection with cleaning the surface (2) in preparation for bonding a component (8) to the body component (1), wherein a surface area (4) of the surface (2) is defined as the joining point for bonding a component, the defined surface area (4) is detected by an optical sensor (5), and the surface area (6) detected by the optical sensor is evaluated by an evaluation unit with regard to the presence of a contaminant (31). The invention further relates to a cleaning device (10) and a smart camera configured for carrying out the method.