A soft gripper including tentacles, each tentacle includes lower and upper members connected by a connector. Each member includes guide discs, and each guide disc includes a ring with passthrough holes, and a spacer located in a donut hole of the ring with passthrough holes, the passthrough holes collectively define cable pathways. The connector includes a center thru-hole and transfer channels. Cables have proximal ends attached to actuators and extend through apertures of a baseplate located at a proximal end of the lower member. A set of lower cables extend through the lower ring passthrough holes to couple to a distal lower guide disc. A set of upper cables extend through the lower spacer passthrough holes, through the transfer channels to the upper ring passthrough holes to couple to a distal upper guide ring, and an end cap is attached to the distal end of the upper member.

A wearable cable-driven robotic arm system includes a wearing mechanism, two robotic arms located on two sides of the wearing mechanism, cable driving devices, a load trolley, and a motor controller, where the cable driving devices are divided into driving portions and driven portions, heavy objects, such as electric motors, of the driving portions are arranged in the load trolley, thereby reducing loads born by the wearable robotic arms, the load trolley can travel with a person by means of sleeves or can be controlled by the motor controller to move by means of signals measured by following modules, the driven portions are combined with the robotic arms, and are double-cable driven, thereby reducing weight of the robotic arms, and a brain-computer interface module is used for controlling the driving devices, thereby controlling the robotic arms more accurately.

A dual-arm robot includes a first arm and a second arm, each having a first link rotatable about a first axis, and a second link rotatably coupled to the first link and defined with an end effector attaching portion. The first link of the first arm is disposed to be separated from the first link of the second arm in an extending direction of the first axis. Further, the second link of the first arm and the second link of the second arm are disposed so as to be located between the first link of the first arm and the first link of the second arm in the extending direction of the first axis and so that the end effector attaching portions are located at substantially the same position in the extending direction of the first axis.

The present invention relates to a joint mechanism (100), a method for controlling the joint mechanism (100), a multi-arm device (200) including the joint mechanism (100), and a robot. The joint mechanism (100) comprises: a base (4) having a pivot shaft (41); a swinging arm (1) having a first end (11) mounted on the pivot shall (41); a first driving member (2) and a second driving member (3) mounted on the pivot shall (41) for interacting with the swinging arm (1) through magnetorheological fluid; and a first electromagnetic component (22) and a second electromagnetic component (32), configured to change phase state of the magnetorheological fluid. The first driving member (2) and the second driving member (3) can selectively drive tire swinging arm (1) to rotate along a first direction or a second direction.

A mechanical positioning structure includes a first positioning mechanism, a fixing post arranged through a central axis of the first positioning mechanism, a first driving mechanism, a second positioning mechanism rotationally arranged on the fixing post and coupled to the first driving mechanism, a second driving mechanism, and a platform. One end of the first driving mechanism is fixed on the fixing post. Another end of the first driving mechanism is slidably arranged on the first positioning mechanism. The second driving mechanism is arranged on the second positioning mechanism. The platform is arranged on the second driving mechanism. The first driving mechanism drives the second positioning mechanism to move on a surface of the first positioning mechanism and rotate the second positioning mechanism around the fixing post. The second driving mechanism drives the platform to move on the second positioning mechanism.

The present invention discloses a gravity balancing device for a rehabilitation robot arm, and belongs to the field of rehabilitation robots. The gravity balancing device includes a shoulder joint connecting member, an upper arm connecting member and a gravity balancing assembly; the shoulder joint connecting member and the upper arm connecting member are pivotally connected according to the human body bionic structure to simulate the rotational movement of the upper arm of the human body around the shoulder joint; the gravity balancing assembly includes a plurality of springs, wire ropes and guide pulleys, the wire ropes connect the springs to the shoulder joint connecting member and the upper arm connecting member, the spring tension is used to balance the gravity of the arm, and the guide pulleys are used to change the force directions of the wire ropes, thereby saving space and making the device structure more compact. Further, by locking different guide pulleys, the arm gravity can be still balanced by the spring tension after switching of the rehabilitation robot between the left and right hand training modes, thereby ensuring that the robot can still work normally after the training mode is switched.

Disclosed herein is a joint unit including two facing gears that include respective two bevel gear members that face each other, and an intermediate gear that has a bevel gear member meshing with both the two bevel gear members. One of the two facing gears and the intermediate gear includes a first member including an inner circumferential portion of the bevel gear member of the one of the two facing gears and the intermediate gear; a second member including an outer circumferential portion of the bevel gear member of the one of the two facing gears and the intermediate gear; and a resilient member attached to one of the first member and the second member for normally urging the other of the first member and the second member to move in a direction along the directions of rotation of the one of the two facing gears and the intermediate gear.

A joint structure for a robot according to the present disclosure includes a first link and a second link rotatably coupled to each other via a joint part. The joint part has a first rotary member disposed so that an axial center thereof is oriented in a first direction and connected to the first link, a pair of second rotary members disposed so that an axial center thereof is oriented in a second direction perpendicular to the first direction, and so as to engage with the first rotary member, and a shaft member formed in a T-shape and having a first shank and a pair of second shanks. The joint structure further includes a pressing member connected to the second shank and configured to press the second rotary member inwardly.

An articulable wrist for an end effector includes a distal linkage provided at a distal end of the articulable wrist, a proximal linkage provided at a proximal end of the articulable wrist, a central channel cooperatively defined at least in part by the distal and proximal linkages and extending between the distal and proximal ends, and flexible member arranged within the central channel and providing one or more lobes arranged about a periphery of the flexible member. One or more stiffening members are arranged within the flexible member and extending at least partially between the distal and proximal ends, wherein at least one of the one or more stiffening members is positioned within a corresponding one of the one or more lobes.

A robot arm includes a first holder and a second holder. The first holder includes a first base portion and a first distal portion. The first distal portion has a first distal thickness smaller than a thickness of the first base portion. The second holder includes a second base and a second distal portion. The second distal portion has a second distal thickness smaller than a thickness of the second base portion. A first rotator is supported by the first distal portion and the second distal portion. A second rotator is supported by the first rotator. A first bevel gear is provided in the first distal portion. Another first bevel gear is provided in the second distal portion. A second bevel gear engages with the first bevel gear and the another first bevel gear.