Robot Arm Object Orientation for Multi-Angle Imaging Inspection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current robot systems lack efficient methods for examining objects from multiple angles before processing, leading to potential defects in manufacturing due to inadequate inspection capabilities.
Innovation Solution
A robot system equipped with a grasping portion and separate imaging portions that allow for multiple posture changes of the object being grasped, enabling comprehensive examination before processing, using a control system to operate the robot arm and imaging components to confirm object positions and detect defects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the imaging portion is fixedly mounted to the robot arm, then the device complexity is reduced, but the measurement precision deteriorates due to limited examination angles
Solution Approach 1:
The system separates the imaging portion from the robot arm, placing the imaging device independently while the robot manipulates only the object. This segmentation allows the imaging system to remain stationary while the object is repositioned for multi-angle examination, resolving the contradiction between device simplicity and examination precision.
Solution Approach 2:
Instead of mounting the camera to the robot arm (traditional approach), the patent inverts the arrangement by placing the imaging portion separately and having the robot arm manipulate the object itself. This inversion enables comprehensive angle coverage without increasing device complexity.
2Measurement precision
If the robot arm is used to change the posture of the object for examination, then the measurement precision is improved, but the productivity deteriorates due to multiple examination steps
Solution Approach 1:
The system performs multiple examinations in continuous motion without stopping the robot arm. The imaging portion captures images at different angles while the object moves continuously through the examination zone, eliminating idle time between examinations and maintaining productivity while achieving comprehensive inspection.
Solution Approach 2:
The examination process uses periodic imaging at specific intervals during the object's movement through the robot's workspace. This allows multiple angle examinations to be performed rhythmically as the object passes through different positions, balancing thorough inspection with efficient throughput.
3Measurement precision
If multiple examinations are performed from different angles, then the measurement precision is improved, but the loss of time increases due to multiple positioning operations
Solution Approach 1:
The system pre-plans the examination trajectory and positions the imaging portion optimally before the object arrives. By preparing the examination path in advance and positioning the camera to capture multiple angles from a fixed location, the system eliminates time-consuming repositioning operations during the actual examination.
Solution Approach 2:
The patent introduces a fixed imaging portion as an intermediary that captures images from multiple angles without requiring the robot arm to stop or reposition for each angle. The imaging system acts as a mediator that records data continuously as the object moves, reducing examination time while maintaining precision.
Data Source
AI summary
In this robot system, a control portion is configured to control a robot to grasp an object to be grasped by a grasping portion, and control a first imaging portion to examine the object to be grasped while driving a robot arm to change a posture of the object to be grasped multiple times.