Robot Arm Projection Display for Marker-Tracked Teaching
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Solution Overview
Problem
Current machine teaching systems for robots require workers to frequently switch their viewpoint between the robot arm and a separate display, reducing work efficiency during the teaching process.
Innovation Solution
A display system that projects information onto the robot arm using multiple imaging and projection apparatuses, allowing the worker to visually recognize both the real motion and teaching information without needing to constantly move their viewpoint, by using markers to track the robot's joints and project relevant data in real-time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If information is displayed on a separate touch panel display, then teaching information can be viewed, but the worker must frequently move the point of view between the robot arm and the display, reducing work efficiency
Solution Approach 1:
The patent merges the display function with the robot arm by projecting teaching information directly onto the robot arm's surface. This combines the robot arm (which the worker must observe anyway) with the information display function, eliminating the need for a separate display device and allowing the worker to view both the robot arm and teaching information simultaneously in one field of view.
Solution Approach 2:
The patent introduces a projection apparatus as an intermediary between the control apparatus and the worker. Instead of displaying information on a separate screen that requires the worker to shift attention, the projection apparatus mediates by overlaying information directly onto the robot arm, allowing continuous observation of both the physical robot and the teaching data.
2Loss of information
If a separate monitor is used to display teaching information, then information can be displayed clearly, but the system requires additional monitors and wiring, increasing system complexity and robot weight
Solution Approach 1:
The patent combines multiple functions into the robot arm itself. The robot arm serves as both the mechanical component and the display surface. By projecting information onto the robot arm, the system eliminates separate monitors, cables, and power supplies that would otherwise be needed, thereby reducing overall system complexity.
Solution Approach 2:
The robot arm is given a dual function: it performs its primary mechanical function while simultaneously serving as a display surface for teaching information. This multi-functionality eliminates the need for dedicated display hardware, reducing the number of components and simplifying the system architecture.
3Ease of operation
If traditional teaching terminals are used, then teaching can be performed, but additional teaching terminals and wiring are required, increasing system complexity
Solution Approach 1:
The patent extracts the display function from the traditional teaching terminal and relocates it to the robot arm itself. By removing the separate display component from the teaching terminal system, the invention reduces the number of terminals and wiring required while preserving the essential teaching capability through projection of information onto the robot arm.
Data Source
AI summary
A display system displaying information on a robot arm when the robot arm having a joint is moving, includes a plurality of imaging apparatuses imaging markers provided on the robot arm, a plurality of projection apparatuses projecting the information on the robot arm, and a control apparatus controlling operation of the projection apparatuses to project the information to follow the moving robot arm based on images of the markers captured by the imaging apparatuses.