Robot Hand Suction Layout Control for Stable Multi-Object Gripping

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Solution Overview

Problem

Existing robot hands struggle with efficiently and stably gripping various objects due to inadequate control over the positional relationship between suction portions, leading to instability and improper suction.

Innovation Solution

A robot hand with a suction structure featuring multiple independently movable suction portions, controlled by a drive mechanism and a processing device that specifies and adjusts the positional relationship based on object information, ensuring proper grip and stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the suction portions are fixed in position, then the structure is simple, but the robot hand cannot adapt to various objects and maintain stable grip

Engineering Contradiction:

Improveadaptability to various objectsVSAvoidcontrol complexity of positional relationship

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The suction portions are made movable relative to each other through a drive mechanism, allowing the robot hand to dynamically adjust the positional relationship between suction portions based on object characteristics, thereby achieving adaptability to various objects while maintaining manageable complexity through automated control

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The processing device automatically specifies the positional relationship between suction portions based on object information, enabling the system to self-adjust without manual intervention, which improves adaptability while minimizing the burden of complex control operations

Inventive Principle:

Principle #25Self-service

2Reliability

If the suction portions are movable to adapt to objects, then grip stability improves, but the device complexity increases

Engineering Contradiction:

Improvegrip stabilityVSAvoidcontrol system complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system uses object information as feedback to automatically determine the optimal positional relationship between suction portions, enabling the drive mechanism to adjust positions based on real-time or pre-acquired object characteristics, thereby ensuring grip stability while managing control complexity through information-driven automation

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The processing device pre-specifies the positional relationship between suction portions based on object information before the gripping action, allowing the drive mechanism to be pre-configured for optimal grip, which enhances reliability by ensuring proper positioning before contact while reducing real-time control complexity

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS20250222597A1Robot hand, processing device, drive controller, non-transitory computer-readable recording medium, and control system

Publication Date: 2025.07.10 KYOCERA CORP

AI summary

A robot hand includes a suction structure and a drive. The suction structure includes a plurality of suction portions that suck an object. The drive changes a positional relationship between the plurality of suction portions.