Mobile Robot Shelf Interaction via Lifting Device
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Solution Overview
Problem
Traditional warehouse automation systems require large, costly robotic components that cannot be easily integrated into existing warehouse infrastructure, especially when the design does not account for robotic components, necessitating a low-cost, flexible automation solution for warehouses with passive shelving units.
Innovation Solution
A mobile robotic frame with a lifting device and gripping mechanism that retrieves and moves containers from shelves without adding powered movement mechanisms to each shelf, using a shelf power transfer unit to automate container movement, allowing for automated delivery and management within the warehouse without custom-built infrastructure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If traditional large mobile robotic components are used for warehouse automation, then automation capability is achieved, but device complexity and cost increase significantly
Solution Approach 1:
The system divides warehouse automation into separate functional modules: mobile robots for transport, stationary lifting devices for container handling, and passive shelf mechanisms for storage. This segmentation allows each component to be optimized independently, reducing overall system complexity while maintaining automation capability.
Solution Approach 2:
The lifting device acts as an intermediary between the mobile robot and the shelf, providing a bridge that transfers containers without requiring the robot to directly interact with the shelf structure. This intermediary mechanism simplifies the robot's design and reduces the need for complex integrated systems.
2Extent of automation
If powered movement mechanisms are added to each shelf, then automated container movement is enabled, but device complexity and power system requirements increase
Solution Approach 1:
The shelf system uses gravity and simple mechanical linkages to automatically move containers when the lifting device deposits them. The passive shelf mechanism leverages the weight of the containers and gravitational force to transfer items to the mobile robot, eliminating the need for powered movement mechanisms at each shelf location.
Solution Approach 2:
The system replaces complex powered mechanical movement systems with simpler gravitational and mechanical linkage-based container transfer. The shelf mechanism uses passive mechanical elements like inclined planes and gravity-assisted conveyors to move containers, substituting the need for motors and power systems at each shelf.
3Adaptability or versatility
If custom-built infrastructure is constructed within the warehouse, then robotic integration is optimized, but ease of manufacture and installation decrease
Solution Approach 1:
The lifting devices are designed as universal, multi-functional components that can be installed at various shelf locations and work with different container types. These standardized units can be deployed without custom-built infrastructure, providing adaptability across different warehouse configurations while maintaining ease of installation.
Solution Approach 2:
The system uses mobile robots that can dynamically reposition themselves to different locations in the warehouse, eliminating the need for fixed, custom-built infrastructure. The mobility of the robots allows them to adapt to different warehouse layouts and container locations without requiring permanent modifications to the warehouse structure.
Data Source
AI summary
A method for the movement of products is described. The method uses a facility that contains warehouse shelves; each shelf has a front, at least one moveable frame which travels to each shelf front to access the containers stored on each shelf. The moveable frame includes a repositionable storage ledge, a lifting device, and a gripping device, along with a ramp for a mobile robot. Mobile Robots exchange payloads between moveable frames and are moved from location to location by the moveable frames.