Gripping Device Contact Section Position Shifting
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Solution Overview
Problem
Conventional gripping devices suffer from short lifetimes due to repeated contact point damage when gripping works of varying shapes, as the flexible bags filled with particulate substances tend to break at specific points.
Innovation Solution
A gripping device with deformable contact sections that maintain their shape after being pressed against a work, utilizing a controller to shift contact points in a plane perpendicular to the gripping direction at predetermined times, preventing localized wear and tear by changing contact points and employing vacuum evacuation to anchor particulate substances within the contact sections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the contact sections repeatedly grip the work at one contact point, then the gripping operation can be performed continuously, but the bags filled with particulate substances suffer damage at the particular point and are likely to break
Solution Approach 1:
The contact sections are designed to dynamically change their contact points with the work piece during gripping operations. The controller actively shifts the contact points of the contact sections in a plane perpendicular to the gripping direction after predetermined gripping cycles, preventing permanent damage at single locations while maintaining continuous operational capability
Solution Approach 2:
The system implements periodic action by shifting the contact points of contact sections at predetermined intervals during gripping operations. This periodic relocation of contact points prevents cumulative damage at any single location, extending the service life of the contact sections while maintaining continuous productivity
2Adaptability or versatility
If the contact sections are made deformable to adapt to various work shapes, then the gripping device can handle different works, but the contact sections are more susceptible to local damage through repeated deformation at the same point
Solution Approach 1:
The contact sections dynamically adapt to different work shapes by deforming and relocating their contact points. The controller manages this dynamic behavior by shifting contact points after predetermined gripping cycles, allowing the system to maintain versatility across different work piece shapes while preventing localized wear and tear through controlled movement
Solution Approach 2:
The system changes the spatial parameters of contact section positioning by shifting contact points in a plane perpendicular to the gripping direction. This parameter change allows the same contact sections to adapt to various work shapes without concentrating damage at fixed locations, extending their operational lifespan while preserving adaptability
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 solution extends the operational life of gripping devices by preventing local damage and allowing them to handle various shapes without structural changes, ensuring stable gripping and prolonged contact section durability.
Implementation Method 1
The shape of the contact section is maintained by evacuating the inside of the bag and increasing a volume ratio of the particulate substances relative to the internal volume of the bag so as to anchor the particulate substances with each other
Data Source
AI summary
A gripping device comprises: a gripping unit for gripping a work; a controller for controlling the gripping operation of the gripping unit; and contact sections attached to the gripping unit contacting the work, the contact sections being adapted to deform following the shape of the work, and to maintain the deformation. The gripping operation of the gripping unit presses the contact sections against the work to cause the contact sections to follow the outside of the work, and grips the work with the shape of the contact sections maintained. After predetermined number of times of gripping operation, the controller changes the positions of the contact points of the contact sections with the work when the work is gripped. As a result, different works having different shapes can be stably gripped and the lifetime of the contact sections can be extended to be longer than that of conventional products. The change, by the controller, in the positions of the points on the work with which the contact sections are in contact when the work is gripped is performed by shifting the contact sections in a plane vertical to the gripping direction.