3D Robot Teaching Interface for Offline Path Alignment
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Solution Overview
Problem
Current offline teaching methods for industrial robots require significant skill, time, and cost to adjust the actual path of the end effector to match the desired path, especially when dealing with complex workpieces, as they often necessitate empirical knowledge and running the actual machine to achieve accurate positioning and path alignment.
Innovation Solution
A robot teaching device and method that utilizes a GUI to display three-dimensional models of the robot and workpiece, allowing operators to mark teaching points, visualize and edit the joined path, and adjust the actual path in real-time, reducing the need for empirical knowledge and machine operation by dynamically changing the positions of teaching points and displaying the actual and ideal paths for alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If offline teaching is performed using traditional methods with actual machine operation, then accurate path alignment can be achieved, but significant time, cost, and operator skill are required
Solution Approach 1:
The patent creates a three-dimensional virtual model that copies the actual workpiece geometry and robot system. Operators perform teaching operations in this virtual environment, and the results are transferred to control the actual robot. This copying approach eliminates the need for repeated actual machine operation while maintaining teaching accuracy, directly resolving the contradiction between path alignment accuracy and teaching time.
Solution Approach 2:
The system performs preliminary path planning and adjustment in the virtual three-dimensional space before actual robot operation. Teaching points are marked, paths are generated and adjusted, and simulations are completed in advance. This preliminary action in virtual space eliminates the need for time-consuming trial-and-error adjustments on the actual machine, reducing teaching time while maintaining accuracy.
2Productivity
If traditional offline teaching methods are used, then robot path teaching can be performed without actual machine operation, but operator skill and empirical knowledge are heavily required
Solution Approach 1:
The system provides automated path generation and adjustment functions that reduce reliance on operator empirical knowledge. The three-dimensional model automatically calculates optimal paths between teaching points, and the system self-adjusts parameters based on simulated execution results. This self-service capability allows operators with less specialized knowledge to achieve accurate robot teaching, improving ease of operation while maintaining productivity.
3Manufacturing precision
If complex workpieces are taught using traditional methods, then accurate path control can be achieved, but the process becomes extremely time-consuming and costly
Solution Approach 1:
The patent transitions from two-dimensional or simplified representations to a full three-dimensional virtual model of the workpiece and robot system. This three-dimensional representation accurately captures complex workpiece geometries and robot configurations, enabling precise path planning and positioning for complex tasks without the time and cost penalties of traditional methods. The additional dimension provides comprehensive spatial information for accurate teaching.
Data Source
AI summary
To enhance the productivity of an offline teaching work by visualizing the working position, path, and the like of an end effector in offline teaching. A robot teaching device, includes: a teaching point marker display unit configured to display, on a GUI, teaching point markers for marking teaching points in a three-dimensional modeling space in which at least a three-dimensional model of a robot including an end effector and a three-dimensional model of a work piece are arranged, the teaching points serving as target passing points of the end effector; a joined path display unit configured to display, on the GUI, a joined path, which is a path connecting successive points among the teaching points to each other; and a changing point marker display unit configured to display, on the GUI, a changing point marker marking a point at which a working state of the end effector changes.