Robot Arm Teaching with Vision-Tracked Jig Positioning
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Solution Overview
Problem
Current teaching methods for robots require manual application of external force to move the robot arm, burdening the teacher and potentially increasing the risk of errors and safety hazards.
Innovation Solution
A method that uses imaging and sensor technologies to detect the position and posture of a teaching jig, allowing the robot arm to be adjusted without manual force, with the control device acquiring and storing the arm's position and posture as teaching information when a signal is received.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual force is applied to move the robot arm during teaching, then the robot arm can be positioned at desired locations, but the teacher becomes burdened and safety risks increase
Solution Approach 1:
The patent replaces the mechanical manual force application system with an optical imaging and sensor-based detection system. The imaging device captures images of the teaching jig, and sensors detect its position and posture, automatically converting this information into robot arm positioning commands, thereby eliminating the need for manual force application and reducing teacher burden while improving safety
Solution Approach 2:
The patent introduces a teaching jig as an intermediary object between the teacher and the robot arm. The teaching jig serves as a mediator that the teacher manipulates indirectly through imaging and sensing, rather than directly manipulating the robot arm, thus reducing the burden and safety risks associated with direct manual operation
2Measurement precision
If manual force is applied to move the robot arm during teaching, then positioning can be achieved, but the complexity of the teaching process increases
Solution Approach 1:
The patent creates an optical copy or virtual representation of the teaching jig through imaging. The imaging device captures the physical teaching jig and generates image data that represents its position and posture, allowing the system to work with this virtual copy rather than directly measuring the robot arm, thereby simplifying the overall system architecture while maintaining precision
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
This approach reduces the teacher's burden and improves safety by enabling precise teaching of robot arm positions and postures without manual force application, enhancing the efficiency and accuracy of the teaching process.
Implementation Method 1
imaging a teaching jig to acquire a captured image
Data Source
AI summary
A teaching method includes imaging a teaching jig to acquire a captured image, detecting a position and a posture of the teaching jig based on the captured image, changing a position and a posture of a robot arm of a robot based on a result obtained by the detection to maintain a positional relation between the teaching jig and a control point of the robot arm, and acquiring the position and the posture of the robot arm as teaching information when a control device, which controls operation of the robot, acquires a teaching signal.