Twistlock Clamping Robot for Multi-Type Container Lock Handling

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Solution Overview

Problem

Existing robots for handling twistlocks are not versatile enough to operate various types of twistlocks, requiring frequent changes in clamping components and leading to high costs and low efficiency.

Innovation Solution

An apparatus with a clamping assembly featuring multiple pairs of clamping portions spaced apart by different distances, an operating assembly with translating and rotating mechanisms, and a switch operating assembly capable of engaging with different types of twistlock switches, allowing the robot to operate multiple twistlock types without changing clamping components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a robot is designed to operate a specific type of twistlock, then the operation reliability is improved, but the adaptability to different twistlock types deteriorates

Engineering Contradiction:
Improveoperation reliabilityVSAvoidadaptability to different twistlock types
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The clamping assembly is designed with multiple pairs of clamping portions that can be selectively positioned to accommodate different types of twistlocks. The operating assembly can drive different pairs of clamping portions to clamp different types of twistlocks, enabling a single robot design to handle multiple twistlock varieties without sacrificing operational reliability for any specific type.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The robot incorporates a switch operating assembly that can dynamically adapt its operation mode based on the detected twistlock type. The system can switch between different clamping portions and operating modes to match the specific requirements of each twistlock type, maintaining reliable operation across diverse configurations.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If the robot is equipped with multiple pairs of clamping portions to handle different twistlock types, then the adaptability is improved, but the device complexity increases

Engineering Contradiction:
Improveadaptability to different twistlock typesVSAvoidclamping assembly complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The clamping assembly is segmented into multiple pairs of clamping portions, each pair designed for specific twistlock types. This segmentation allows the system to handle different twistlock varieties with specialized clamping configurations while maintaining a modular structure that manages complexity through organized division of functions.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Multiple pairs of clamping portions and their corresponding operating mechanisms are merged into a single integrated clamping assembly. This consolidation allows the robot to switch between different clamping configurations without requiring separate assemblies for each twistlock type, managing complexity through unified design while maintaining adaptability.

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If the robot frequently changes clamping components to operate different twistlock types, then the adaptability is maintained, but the productivity decreases

Engineering Contradiction:
Improveadaptability to different twistlock typesVSAvoidoperation efficiency
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The robot employs a vision system to detect and identify the twistlock type before the clamping operation begins. This preliminary detection allows the control system to pre-select the appropriate pair of clamping portions and configure the operating assembly in advance, eliminating the need for frequent physical changes during operation and maintaining high productivity.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The switch operating assembly enables dynamic adaptation to different twistlock types during operation. The system can switch between different clamping portions and operating modes on-the-fly based on real-time detection, maintaining adaptability without requiring frequent stops for component changes, thus preserving productivity.

Inventive Principle:
Principle #15Dynamics

4Reliability

If the robot is designed with specialized clamping components for each twistlock type, then the operation reliability is improved, but the loss of substance increases due to frequent component changes

Engineering Contradiction:
Improveoperation reliabilityVSAvoidclamping component wear and replacement
Core Design Contradiction:
ReliabilityVSLoss of substance

Solution Approach 1:

The clamping assembly is designed as a universal system with multiple pairs of clamping portions that can handle different twistlock types. This multi-functional design eliminates the need for frequent replacement of specialized components for each twistlock type, reducing material consumption and waste while maintaining reliable operation across various twistlock configurations.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP4217143B1Apparatus and method of operating twistlock and associated robot
Publication Date: 2025.10.29 ABB (SCHWEIZ) AG
  • EP4217143B1 patent drawingFigure 1
  • EP4217143B1 patent drawingFigure 2
  • EP4217143B1 patent drawingFigure 3

AI summary

Embodiments of the present disclosure provide an apparatus and a method for operating a twistlock and an associated robot. The apparatus comprises a clamping assembly comprising a plurality of pairs of clamping portions spaced apart by different distances and adapted to engage with different types of twistlocks, respectively; and an operating assembly adapted to drive one of the plurality of pairs of clamping portions to clamp the twistlock and to drive the clamped twistlock to rotate, to allow the clamped twistlock to be mounted on or removed from a container. In this way, the apparatus according to embodiments of the present disclosure can be applied to most types of twistlocks without changing the clamping assembly, thereby improving the operation efficiency and reducing the costs.