Automated Cargo Handling Robot With Extendable Gripper
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Solution Overview
Problem
The existing methods for loading and unloading cargo from cargo containers are labor-intensive, expensive, and often dangerous, with limitations such as the use of forklifts leading to inefficiencies and risks, and existing automated systems having low throughput and requiring human intervention.
Innovation Solution
An automated unloading and loading robot system with a mobile End of Arm Tool (EoAT) equipped with a conveyor system and an extendable-retractable gripper mechanism, capable of moving in yaw and pitch directions, which minimizes human interaction and optimizes cargo handling by using vacuum cups to grip and move cargo items efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If forklift trucks are used to load and unload cargo, then cargo handling can be automated to reduce labor costs, but the process becomes slow because only one forklift can fit inside the trailer at a time
Solution Approach 1:
The robotic system is divided into multiple independent robotic units that can operate simultaneously within the trailer. Each robot has its own conveyor system and gripper mechanism, allowing parallel processing of multiple cargo items, thereby increasing overall productivity while maintaining automation.
Solution Approach 2:
The robotic system utilizes three-dimensional movement capabilities including vertical stacking and multi-level operation within the trailer. Robots can move cargo vertically and position items at different heights, maximizing space utilization and enabling faster loading/unloading compared to traditional single-level forklift operations.
2Extent of automation
If forklifts are used for cargo handling, then loading operations can be performed, but valuable space within the cargo container is wasted due to pallets and forklift structure
Solution Approach 1:
The system extracts and eliminates the need for traditional pallets by using robotic grippers that can directly grasp and manipulate individual cargo items. This removes the bulky pallet structure from the cargo space, maximizing the volume available for actual goods while maintaining automated handling capabilities.
Solution Approach 2:
The robotic system applies localized gripping forces at specific contact points on cargo items rather than requiring full-pallet support. This allows for efficient space utilization by positioning cargo items precisely where needed within the container, optimizing the distribution and density of loaded goods.
3Ease of operation
If forklifts and manual labor are used for cargo handling, then cargo can be moved, but the process is dangerous and results in high worker compensation claims
Solution Approach 1:
The robotic system performs all cargo handling operations autonomously without human intervention in the hazardous loading zone. The robots navigate, grasp, transport, and position cargo items independently, eliminating exposure to physical dangers such as falling objects, heavy lifting injuries, and trailer instability while maintaining efficient cargo handling operations.
Solution Approach 2:
The system replaces manual mechanical labor with automated robotic mechanisms equipped with sophisticated sensors, vision systems, and controlled gripping capabilities. This substitution eliminates human exposure to harmful factors while providing precise and safe cargo manipulation that exceeds human capability in terms of consistency and safety.
4Extent of automation
If existing automated robotic systems are used for cargo handling, then labor costs are reduced, but the systems are error-prone and require human intervention
Solution Approach 1:
The robotic system incorporates multiple sensors, vision systems, and real-time monitoring capabilities that continuously feedback on cargo position, gripper force, and system status. This feedback mechanism enables automatic detection and correction of potential errors, ensuring reliable operation without human intervention while maintaining high precision in cargo handling tasks.
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
The system significantly reduces labor costs and risks by enabling rapid, efficient, and accurate loading and unloading of cargo with minimal human intervention, improving throughput and safety while maximizing space utilization within cargo containers.
Implementation Method 1
The gripper mechanism includes one or more vacuum cups to grip the cargo items
Data Source
AI summary
A system includes a robot configured to load and/or unload from a location, such as a cargo carrier or building. The robot includes a base unit that has a transport system to move the base unit. A mast extends from the base unit, and the mast has a mast conveyor. An End of Arm Tool (EoAT) is coupled to the mast. The EoAT includes an EoAT conveyor configured to move a cargo item to and from the mast conveyor. A gripper mechanism is configured to move between a retracted position where the gripper mechanism is clear of the cargo item on the EoAT conveyor and an extended position where the gripper mechanism is able to grip the cargo item.