Adjustable Multi-Zone End Effector for Robotic Logistics
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Solution Overview
Problem
Conventional end effectors for robotic systems face inefficiencies and inaccuracies when handling unstructured objects due to limited adjustability and inability to accommodate varying dimensions and arrangements, leading to reduced throughput and increased inaccuracies during loading and unloading operations.
Innovation Solution
The development of an end effector with independently adjustable engagement pads that can move in multiple directions, allowing for the creation of distinct handling zones, enabling secure engagement with objects of various sizes and arrangements, and equipped with image sensing components for precise control and adaptability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional end effectors are used for handling objects, then the structure is simple, but the adaptability to varying object dimensions and arrangements is poor
Solution Approach 1:
The end effector is divided into multiple independently controllable engagement assemblies, each with its own actuation mechanism. This segmentation allows each assembly to be adjusted independently to accommodate different object dimensions and arrangements, directly resolving the contradiction between adaptability and structural simplicity.
Solution Approach 2:
The engagement pads are made dynamically adjustable through actuation assemblies that can change the position and configuration of each pad independently. This dynamic capability enables the end effector to adapt to varying object dimensions while maintaining a relatively simple base structure, as the complexity is activated only when needed.
2Manufacturing precision
If conventional end effectors with fixed engagement pads are used, then the device complexity is low, but the handling precision for unstructured objects is poor
Solution Approach 1:
Each engagement pad is equipped with its own actuation assembly, allowing local adjustment and independent control of each pad's position and engagement force. This local quality approach enables precise handling of unstructured objects by tailoring the engagement characteristics at each specific location, resolving the contradiction between handling precision and device complexity.
3Adaptability or versatility
If independently controllable engagement assemblies are added to the end effector, then the adaptability improves, but the device complexity increases
Solution Approach 1:
The engagement assemblies are designed with universal functionality, where each assembly can perform multiple functions (engagement, positioning, and sensing) through a single integrated structure. This multi-functionality reduces the overall device complexity despite having multiple assemblies, as each component serves multiple purposes rather than requiring separate dedicated components for each function.
Data Source
AI summary
Various embodiments are directed to a robotic system using an end effector configured for handling one or more objects within a handling environment. In various embodiments, the end effector comprises a frame element secured relative to the positioning mechanism; and a plurality of engagement pads operably coupled to the frame element, each of the plurality of engagement pads being moveable in one or more directions relative to the frame element by a corresponding actuation assembly; wherein each of the corresponding actuation assemblies is independently operable to move one of the plurality of engagement pads connected thereto throughout a respective range of motion such that each of the plurality of engagement pads is configured to engage a respective portion of the one or more objects.