Gripper device and method for gripping objects using the same

Gripper device for simultaneous gripping of stacked objects using a dual gripper connected by a damping unit

This technology is a multi-gripper mechanism that connects vertically arranged first and second gripper units via a damping unit, allowing for the independent yet organic pressing and gripping of multiple stacked objects. The first gripper moves laterally, while the second gripper moves longitudinally. Through the telescopic and elastic members of the damping unit, the structure allows the second gripper unit to automatically adjust its height while pressing the second object during the gripping process of the first object.

Conventional single grippers are optimized for gripping objects with linear sides, making it difficult to pick up objects where the top protrudes outward relative to the bottom, and they suffer from the inefficiency of being unable to pick up stacked objects simultaneously.

This technology features a vertically arranged, laterally moving first gripper and a longitudinally moving second gripper, with a damping unit containing telescopic and elastic members between them. This configuration allows the second gripper unit to automatically adjust its height difference to stably grip the second object by utilizing the pressing force generated during the gripping of the first object. Applicable to logistics picking, manufacturing automation, and service robots, it increases processing efficiency by picking up objects with protruding tops or stacked items in a single motion.

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Key Features:

• A first gripper unit comprising a first body with a preset volume and a pair of first grippers connected to the lower part of the first body to be movable in a lateral direction
• A second gripper unit comprising a second body with a preset volume and a second gripper connected to the lower part of the second body to be movable in a longitudinal direction
• A gripper device where the distance between the first body and the second body is reduced as the elastic member is compressed.
• A telescopic member with a variable length, having its lower end connected to the second body