Gripper System

Gripper System

This technology is a gripper system mechanism that physically controls the coefficient of friction between the gripping surface and an object by forming a plurality of micro-channels on the gripping surface and supplying liquid through a fluid pump.

Conventional gripper systems rely solely on normal force control, which can cause deformation when gripping flexible objects. Furthermore, because the coefficient of friction is fixed as a constant value, there are limitations in precisely gripping objects of various materials and shapes.

This technology actively controls the contact area and frictional force by discharging liquid through a plurality of micro-channels formed on the gripping part, and adjusts the supply volume of the fluid pump and the gripping force of the drive unit in real time based on the object's state measured by force sensors. Applicable to logistics picking, service robots, and manufacturing automation, it improves precision control for gripping various materials and objects of different shapes by controlling friction through fluid and deformation control of the gripping part.

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Key Features:

• A gripper system for gripping an object, comprising a pair of gripping parts having gripping surfaces with a plurality of micro-channels formed therein, which come into contact with the object through the gripping surfaces.
• A control unit that controls a drive unit to have the pair of gripping parts grip an object, or controls a fluid pump to adjust the amount of liquid supplied to the gripping surfaces.
• A drive unit that operates the pair of gripping parts.
• A fluid pump connected to the plurality of micro-channels to supply liquid.