Jiangnan University

Chenyang Fan

Jun Zhang

Bing Lv

Jian Shen

Jiaping Zhang

Lifeng Lu

A palm-type mechanical gripper with variable-position and rotatable fingers and a dual-drive crank-slider parallel mechanism is provided with a crank-slider mechanism on the left side, which is an active driving structure and is driven by two stepping motors to respectively generate angular displacement of cranks and to change lengths of connecting rods, and a crank-slider mechanism on the right side, which is a driven mechanism and is driven at a constant speed by a pair of gears. The mechanical gripper is provided with three plate spring fingers, wherein two fingers are respectively installed on the connecting rods on left and right sides, and under the cooperative effect of the two stepping motors, the eccentricities of the cranks, the positions and angles of the two fingers respectively on the two connecting rods and the position of the other fixed finger can be changed through manual adjustment.

Palm-type mechanical gripper with variable-position and rotatable fingers and dual-drive crank-slider parallel mechanism

Disclosed is an elastic corrugated pipe single-acting cylinder-driven mechanical gripper with a series-connection flexible hinge framework. The mechanical gripper consists of a palm and two flexible fingers or a palm and three flexible fingers. Each of the flexible fingers is identical in structure, and essentially consists of an elastic corrugated pipe single-acting cylinder () and a series-connection flexible hinge (); configuration of the series-connection flexible hinge () is designed according to features of grasping objects; the mechanical gripper generates a grasping force by the elastic corrugated pipe single-acting cylinder (). The mechanical gripper applies to the grasping of fragile, brittle objects or oddly-shaped objects varying with shapes and dimensions, belonging to the technical field of robots and mechatronics application; when coupled to a robot body, the mechanical gripper is especially suitable for the production and logistic fields for grasping, sorting and packing of foods, agriculture products and light industrial products.

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Wuxi, China

Chenyang Fan