The present disclosure relates to a robotic gripper comprising a body and two robotic fingers mounted to the body. Each robotic finger includes a first link, a second link, a third link, a fourth link, a first joint, a second joint and a third joint. The first joint connects the first link and the second link, and the second joint connects the second link and the third link, and the third joint connects the third link and the fourth link. These links and these joints are comprised of elastic material and are formed in one piece.

A Link Stacking Actuator is a scalable device that will contract or expand upon the application of rotational force. This rotational force is converted into linear force in contraction and this contraction can be released for expansion. Contraction and expansion are determined by the relative direction of rotational force applied. The device only generates linear force when contracting. Expansion is simply a relaxation of the device. The conversion of rotational force to contraction is achieved by mechanical stacking of interconnected links that fold or stack into a structure when rotational torsion is applied from a motor against a fixed mount-point or another counter-rotating motor. When used in oppositional pairs, these devices can be used to actuate hinged beams such as robotic arms, legs, and fingers. The device can also be used for direct lift applications when configured in multiple parallel sets.

The disclosure discloses an electric-pneumatic hybrid-driving flexible manipulator with spring framework from plates of special-shaped thickness, including a screw shaft motor, an upper seat plate, guide coupling rods, linear bearings, a driving plate, a push plate, short push rods, connecting rods, a bottom seat plate, flexible fingers, a rotating finger holder, a long push rod, a small support, tension springs, single-head bellows muscles and a ridged push plate. The framework of the flexible fingers is a thickness special-shaped plate spring designed according to the principle of equal strength. In the disclosure, through the control of a motor, an angle between a finger knuckle and a grasped object can be adjusted to realize the adjustment of the position of a contact point. To adjust the position of the contact point of the grasped object, the acting point of the contact force and the direction of the acting force can be selected according to situations, so that the grasping is more accurate and reliable. At the same time, the angle between the finger knuckle and the grasped object can be adjusted to adapt to a larger change in size of the grasped object. In the disclosure, a pneumatic system is large in gain and the pneumatic bellows muscles are light, so that the response is quick and the buffering effect is good.

A robotic system includes an end effector with one or more fin grippers that have one or more vacuum ports. The fin grippers are made of elastic material. The fin grippers each include contact and exterior flanges joined together with a series of crossbeams. The crossbeams each define a tube opening to form a tube guide channel between the contact and exterior flanges. In one form, the vacuum ports are located at fingertip ends of the fin grippers, and the vacuum ports include vacuum cups.

Aspects described herein include an end effector capable of prehending items using impactive and astrictive forces. The end effector includes an interface system having a deformable mounting plate and a pliable body member attached to the mounting plate. The end effector further includes a linkage system between a plurality of actuators and the interface system. The linkage system connects to lateral portions of the mounting plate.

A gripper includes fingers, which are configured to interact with an object. A first mount supports a first finger. A second mount supports a second finger. A support plate supports these mounts. A cam plate is configured to interact with the first mount and the second mount to provide a first arrangement and a second arrangement. When the first and second mounts are in the first arrangement, the gripper is provided with a first distance between the first finger and the second finger when the gripper is in an open position to receive and/or release the object. When the first and second mounts are in the second arrangement, the gripper is provided with a second distance between the first finger and the second finger when the gripper is in the open position. The second distance is greater than the first distance.

A pizza transfer tool incorporating a vertical shaft; an upper member mounted to the vertical shaft for upward and downward motions; a lower member mounted to the vertical shaft for upward and downward motions; a circumferential array of upper pivot arms having proximal ends pivotally mounted to the upper member; a circumferential array of lower pivot arms having proximal ends pivotally mounted to the lower member; a circumferential array of linking members having inner ends and outer ends, wherein each outer end is pivotally mounted to a distal end of one of the upper pivot arms, and wherein each inner end is pivotally mounted to a distal end of one of the lower pivot arms; and a circumferential array of spatulas attached to the linking member's inner ends.

A linkage mechanism includes: a base member; a first link having a first end rotatably connected to the base member; a second link rotatably connected to the first link; a connecting member rotatably connected to the base member and the second link; an actuating mechanism having a linear actuator, a pushing member, and a transmission member, the pushing member slidably connected to the output shaft, the pushing member having a pushing surface, the transmission member including a first end hinged to the pushing member, and a second end pivoted to the first end of the first link. When the output shaft extends to push the pushing surface, the pushing member moves and the first link rotates relative to the base member.

A linkage mechanism includes: a base member; a first link rotatably connected to the base member, the first link defining a first arc-shaped guide groove centered on a pivot axis about which the first link rotates relative to the base member; a second link rotatably connected to the first link; a connecting member rotatably connected to the base member and the second link; an actuating mechanism including a linear actuator and a transmission member that is driven by the linear actuator, the transmission member having a first end rotatably connected to the output shaft, and a second end slidably received in the first arc-shaped guide groove. When the linear actuator drives the connecting member to extend and move, the second end of the transmission member abuts against one end of the first arc-shaped guide groove, which drives the first link to rotate relative to the base member.

A robotic end-effector to provide magnetic and mechanical finger grip. The end-effector has one or more magnets coupled to a palm, each of the one or more magnets having a magnet face to magnetically attach to a ferromagnetic object. The magnet face(s) define(s) a magnetic engagement surface with the magnet and the palm disposed on a proximal side of the magnetic engagement surface. A finger is pivotally coupled to the palm to grip the ferromagnetic object or another object. The finger has a deployed configuration wherein the finger is disposed distally with respect to the magnetic engagement surface and opposes the palm or the magnet face to grip the ferromagnetic object or other object. The finger has a retracted configuration wherein the finger is disposed proximally with respect to the magnetic engagement surface along with the magnet and the palm, and wherein the magnetic face forms an outermost contact surface.