Robot Tool Exchange via Adjacent Handoff
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Solution Overview
Problem
In parts machining lines with multiple robots, exchanging positioning jigs for different types of work requires separate storage units and conveyance systems, leading to inefficiencies and the need for large-scale equipment.
Innovation Solution
A robot system where robots are equipped with hands to handle tools stored in a central unit, allowing adjacent robots to pass tools between each other to convey them to the robot needing a change, eliminating the need for separate conveyance equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If storage units and conveyance systems are provided for each robot type, then tool exchange is enabled, but system complexity and equipment cost increase
Solution Approach 1:
The patent merges the conveyance function into the robot system itself by using robot hands to pass tools between adjacent robots, eliminating the need for separate conveyance systems. The tool storage unit is also positioned to be accessible by multiple robots, combining storage and access functions in a simplified configuration.
Solution Approach 2:
The tool storage unit is designed to be accessible by multiple robots, and robot hands are used for both machining operations and tool conveyance. This multi-functionality reduces the need for dedicated components for each function, simplifying the overall system.
2Adaptability or versatility
If storage units and conveyance systems are provided for each robot type, then tool exchange is enabled, but equipment cost increases
Solution Approach 1:
The patent merges the conveyance function into the robot system itself by using robot hands to pass tools between adjacent robots, eliminating the need for separate conveyance systems. This consolidation reduces equipment costs while maintaining tool exchange capability.
Solution Approach 2:
The robot system performs its own tool conveyance using its existing robot hands, eliminating the need for external conveyance equipment. The system serves itself by using its own components for multiple functions, reducing overall equipment requirements and cost.
3Device complexity
If a central tool storage unit is used with robot-to-robot tool passing, then system compactness and cost are reduced, but tool exchange time may increase
Solution Approach 1:
The tool storage unit is positioned to be accessible by multiple robots, allowing tools to be pre-positioned and ready for exchange. Adjacent robots can quickly access and pass tools without requiring complex positioning or long conveyance distances, reducing exchange time despite the simplified system structure.
Data Source
AI summary
A robot system including a plurality of robots that are arranged at intervals and that each perform machining on a work; and a tool storage unit that stores a tool used when each of the robots performs machining on the work and that is disposed at a position allowing at least one of the robot to take out the tool, wherein the respective robots are provided with hands with which the tool stored in the tool storage unit can be handled; and, when one of the robots needs to exchange the tool.