A system for lifting a deformable object includes a support structure, two pairs of opposing arms coupled to the support structure, and a fluid power driver operatively coupled in parallel to the pairs of opposing arms via a fluid power system. Each of the arms includes inclined surfaces configured to contact the deformable object. When the support structure is positioned above the deformable object on the surface, the fluid power driver is configured to increase pressure in the fluid power system until the pressure in the fluid power system reaches a predetermined level such that (i) each of the pairs of opposing arms independently closes a distance until the inclined surfaces are in contact with sides of the deformable object, and (ii) the pairs of opposing arms exert a compressive force on the deformable object that causes the deformable object to slide up one or more of the inclined surfaces.

Safety is one of the most important factors in the robot interaction with unknown and dynamic environments. Recent studies have shown that the use of compliant components as a solution to the safety issue, especially in the physical human-robot interaction. To overcome performance degradation caused by including compliant elements into the systems, variable stiffness approaches have been introduced at the cost of an extra actuator. A variable stiffness gripper is presented. Embodiments of the disclosed gripper may have, for example, with two parallel fingers (jaws). Compliance of the system may be generated by using magnets as the nonlinear springs. Based on the presented design, the position and stiffness level of the fingers can be adjusted simultaneously by changing the air gap between the magnets.

A robotic system including a long-stroke and force-control parallel gripper. The parallel gripper may include an electric motor and siding mechanism to allow the length of the stroke of the fingers to be greater than the distance traveled. The parallel gripper also includes interchangeable fingers that may be engaged and disengage by the robotic system using a secured finger housing and latching mechanism.

An apparatus, system and method for providing a variable swath end effector. The variable swath end effector may include: two arms, each for retaining a portion of a retained element; two pairs of bearing rails, each pair being uniquely mechanically associated with a one of the two arms, wherein a level of one pair of bearing rails is staggered from a second level of the other pair of earing rails in a perpendicular axis, and wherein the staggered pairs of bearing rails are interleaved with each other; and a motor capable of driving a belt in mechanical association with each of the two arms, wherein actuation of the motor drives the belt to synchronously move each of the two arms across a respective one of the pairs of bearing rails to vary the swath between the two arms.

There is provided a glove donning device that includes (a) a hollow tube having an annular opening, (b) a vacuum head configured to acquire a glove having an opening, (c) a pair of hooks, (d) a first transporter configured to move the vacuum head and the glove towards the pair of hooks so that the pair of hooks is inserted into the opening of the glove, (e) a hook actuator configured to move the pair of hooks apart after the pair of hooks is inserted in the opening of the glove, and (f) a second transporter configured to (i) move the pair of hooks and the glove towards the hollow tube, and (ii) move the pair of hooks to position the glove opening over the annular opening of the hollow tube.

The present disclosure relates to a gripper and a robot. The gripper according to the present disclosure includes at least three guiding rails arranged head to tail in sequence, at least three gripping fingers respectively disposed on the at least three guiding rails and a driving mechanism. A first end of each of the gripping fingers is slidably connected to the corresponding guiding rail and a second end of each of the gripping fingers is for contacting the object to be gripped. The driving mechanism drives each of the gripping fingers to move along the corresponding guiding rail, so that the second end of each of the gripping fingers moves toward or away from a gripping center of the gripper.

A device for gripping an object that includes a main body having a first and a second endplate, a baseplate, at least one guide rail, and a first jaw and a second jaw, each receiving the at least one guide rail. The device also includes a first pulley assembly and a second pulley assembly respectively attached to the baseplate and a chain loop respectively attached to the first pulley assembly and the second pulley assembly. The chain loop includes a first chain length and a second chain length and a first link and a second link that attaches the first chain length and the second chain length. Each of the first link and second link include at least one dowel pin. The chain loop is attached to the first jaw and the second jaw by the at least one dowel pin of each of the first link and second link.

A method of teaching in a holding force for holding an object by a gripper of a robot manipulator, the gripper having gripper jaws elastically deformable in a reversible manner, the method including: closing the gripper until the gripper jaws contact the object at contact points of the gripper jaws; externally applying a desired closing force at connection points of the gripper jaws to gripper jaw bearings such that the connection points move relative to the contact points, thereby elastically deforming the gripper jaws; actuating a gripper drive to maintain the current position of the connection points and terminating the closing force externally applied onto the connection points; and ascertaining and storing a value of a gripping force or a gripping torque, wherein the gripping force or the gripping torque is produced by elastic deformation of the gripper jaws and is exerted onto the connection points by the gripper jaws.

Provided is a conveying manipulator for machining precision parts in the technical field of conveying manipulators, including two machining tables with tabletops on a same horizontal plane and used for placing parts to be machined, a mechanical arm assembly for conveying the parts, and a mounting bracket for mounting the mechanical arm assembly; the mechanical arm assembly includes a mechanical arm a for conveying the parts and a mechanical arm b for assisting the mechanical arm a to jointly convey the parts, where the mechanical arm a includes a conveyor belt and an arm frame assembly, and the mechanical arm a and the mechanical arm b are symmetrically arranged.

An improved method and apparatus for automatically picking a fruit is described. During the clamping stage, the movement of the fingers is controlled such that a specific maximum clamping force is not exceeded. In addition, during at least a part of the removal stage, the mutual position of the fingers is controlled by the drive such that their mutual distance does not increase.