Suction Gripping Device Tilted Surface Adaptation

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Solution Overview

Problem

Existing suction gripping devices face challenges in stably gripping workpieces with tilted surfaces due to interference from obstacles and uneven pressure distribution, leading to potential detachment during transfer.

Innovation Solution

The suction gripping device incorporates a pad mechanism with a sliding part and a pipe system, where the suction pad is connected rigidly to the pipe and guided to tilt due to the weight of the sliding part, ensuring consistent contact and reduced interference with obstacles, while the lock mechanism controls the sliding state to maintain a secure grip.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the suction pad is rigidly connected to the base, then the structural simplicity is improved, but the ability to adapt to tilted surfaces deteriorates

Engineering Contradiction:
Improvestructural simplicityVSAvoidability to adapt to tilted surfaces
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The suction pad is connected to the base through a sliding mechanism that allows dynamic adjustment of the pad's position and orientation. The sliding part can move along the guide to accommodate tilted surfaces while maintaining suction contact, transforming a static rigid connection into a dynamic adaptive system.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If the suction pad is allowed to tilt freely, then the adaptability to tilted surfaces is improved, but the stability of the gripping deteriorates

Engineering Contradiction:
Improveadaptability to tilted surfacesVSAvoidstability of the gripping
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The gripping system is segmented into multiple independent components: the base, the sliding part, the suction pad, and the guide. This segmentation allows the suction pad to tilt independently to adapt to the workpiece surface while the sliding mechanism and base remain stable, providing controlled adaptability without compromising overall gripping stability.

Inventive Principle:
Principle #1Segmentation

3Force

If the sliding part is made heavier to increase pressing force, then the gripping force is improved, but the interference with obstacles deteriorates

Engineering Contradiction:
Improvepressing forceVSAvoidinterference with obstacles
Core Design Contradiction:
ForceVSObject-affected harmful factors

Solution Approach 1:

Instead of uniformly increasing the weight of the entire sliding part, the pressing force is concentrated locally at the suction pad contact point. The sliding mechanism translates the weight of the sliding part into focused vertical pressing force on the workpiece surface, maximizing gripping force while minimizing horizontal interference with obstacles through the guided sliding motion.

Inventive Principle:
Principle #3Local quality

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

This configuration allows for stable gripping and transfer of workpieces with tilted surfaces, minimizing interference and excessive pressure, ensuring reliable attachment and preventing detachment during handling.

Implementation Method 1

a suction pad 11 which is slidable in a first direction with respect to the base 30 and is vacuum-attachable to a workpiece W

Methodology Applied
Scientific EffectVacuum: Vacuum

Data Source

PatentUS12006165B2Suction gripping device, transfer system, and transfer method
Publication Date: 2024.06.11 KK TOSHIBA
  • US12006165B2 patent drawing
  • US12006165B2 patent drawing
  • US12006165B2 patent drawing

AI summary

According to one embodiment, a suction gripping device includes a pad mechanism mounted to a base. The pad mechanism includes a sliding part and a first guide. The sliding part includes a suction pad and a pipe and is slidable in a first direction with respect to the base. The suction pad attaches to a workpiece and is connected to the pipe at one end of the pipe. The first guide guides a sliding direction of the pipe to be in the first direction. The first guide is fixed with respect to the base. An attachment surface of the suction pad contacts a first surface of a workpiece and is tiltable due to a weight of the sliding part when gripping the workpiece. The first surface crosses a sliding direction of the sliding part.