Robotic Paint Defect Detection and Grinding for Stable Surface Quality
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current manual inspection methods for automotive body paint surface defects are inefficient and unreliable, relying heavily on worker experience and resulting in unstable quality and low efficiency.
Innovation Solution
A robotic system comprising a defect detection device and a defect grinding device, controlled by a central system, that uses robotic arms, optical imaging, and 3D positioning cameras to automate the detection and grinding of paint surface defects, ensuring precise and efficient defect identification and removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual inspection methods are used, then workers can detect defects through visual observation, but work efficiency is low and quality is unstable
Solution Approach 1:
The patent replaces the manual mechanical inspection system with an automated optical detection system. A detection robotic arm equipped with optical imaging components (cameras, light sources) automatically inspects the paint surface, substituting human visual observation with machine-based optical detection. This eliminates variability in human judgment and significantly improves both efficiency and quality stability.
Solution Approach 2:
The system enables self-inspection and self-correction capabilities. The detection device automatically identifies defects, determines their positions and types, and the grinding robotic arm automatically executes correction without human intervention. This closed-loop self-service mechanism ensures consistent quality outcomes independent of worker experience.
2Reliability
If manual inspection methods are used, then workers can detect defects, but the process relies heavily on worker experience leading to unstable quality
Solution Approach 1:
The detection robotic arm serves multiple functions: it positions optical components, captures images from various angles, and coordinates with the grinding system. The optical imaging component performs multiple detection tasks including identifying defect positions, types, and characteristics. This multi-functionality reduces the need for separate specialized devices for each task.
Solution Approach 2:
The control device acts as an intermediary that processes detection data, determines defect characteristics, and generates grinding instructions. This centralized control mechanism coordinates between detection and grinding subsystems, managing system complexity through a unified control architecture rather than requiring complex point-to-point connections between all components.
3Measurement precision
If automated robotic system is implemented, then detection efficiency and accuracy are significantly improved, but device complexity increases
Solution Approach 1:
The system is divided into distinct functional modules: detection robotic arm with optical components, control device for processing, and grinding robotic arm with grinding components. Each module is independently designed and controlled, allowing for specialized optimization while managing overall complexity through modular architecture. The segmentation enables precise defect detection without requiring a single overly complex system.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
A paint surface defect detection and grinding system is provided, including: a defect detection device, which is provided at a defect detection station; a defect grinding device, which is provided at a defect grinding station, the defect grinding station being a downstream station of the defect detection station; and a control device, which is connected to the defect detection device and the defect grinding device. The control device is configured to control the defect detection device to perform paint surface defect detection on a target object to obtain a paint surface defect of the target object and a defect position of the paint surface defect. The control device is also configured to control the defect grinding device to grind the paint surface defect based on the defect position.