Patent classifications
B25J17/0208
Manipulator arrangement and movement device
A movement device and a manipulator configuration are provided for contact and/or invasive examination or treatment of the human or animal body under the influence of increased and/or changing acceleration. Wherein a functional head can be moved relative to a base along a plurality of degrees of freedom movable by drive devices and at least one drive device is constituted as a force-limited drive device.
TORSIONAL SERIES ELASTIC ACTUATOR
A rotary-type series elastic actuator (SEA) for use in robotic applications. The SEA including a motor, gear transmission assembly, spring assembly, and sensors. In one example, a robotic joint may include the SEA as well as two links coupled with each other at the joint assembly. The two links may be designated as input and output links. Each link may have a joint housing body which may be concentrically connected via a joint bearing so that they freely rotate against each other. The housing frame of the SEA may be fixed at the joint housing body of the input link while the output mount of the spring assembly of the SEA may be concentrically coupled with the joint housing body of the output link. The rotation of the motor rotor causes the rotation of the output link with respect to the input link plus spring deflection of the spring assembly. When an external force or torque are applied between the two links, a control action of a control loop may cause a rotation and motive force of the motor that lead to the deflection of the spring assembly to balance with the external force/torque and inertial force from body masses moving together with the links.
TRANSFER APPARATUS AND ARTICLE TAKING-OUT METHOD
According to an embodiment, a transfer apparatus includes a gripper, a first driving mechanism, an elastic passive joint part, a conveyor, a second driving mechanism, and base. The gripper grips an article. The first driving mechanism linearly moves the gripper in at least two directions including a first direction and a second direction intersecting with the first direction. The elastic passive joint part is interposed between the gripper and the first driving mechanism, and operates in accordance with an operation of the gripper. The conveyor conveys the article. The second driving mechanism linearly moves the conveyor in the at least two directions, and is connected to the conveyor. The base supports the first driving mechanism and the second driving mechanism.
ROBOT HAND, ROBOT AND ROBOT SYSTEM CAPABLE OF GRIPPING WORKPIECE, AND METHOD OF ROTATING AND INSERTING WORKPIECE INTO HOLE
A robot hand capable of rotating and inserting a workpiece into a hole, while preventing a workpiece from being damaged when the workpiece is gripped. The robot hand includes a first hand section, a second hand section provided with a workpiece gripping section capable of gripping a workpiece, an elastic member configured to connect the first hand section and the second hand section in an elastically displaceable manner, and a movement restricting mechanism configured to releasably restrict a rotation movement of an elastic displacement of the second hand section with respect to the first hand section.
Damping a Telesurgical System
Methods and systems for damping vibrations in a surgical system are disclosed herein. The damping of these vibrations can increase the precision of surgery performed using the surgical system. The surgical system can include one or several moveable set-up linkages. A damper can be connected with one or several of the set-up linkages. The damper can be a passive damper and can mitigate a vibration arising in one or more of the set-up linkages. The damper can additionally prevent a vibration arising in one of the linkages from affecting another of the set-up linkages. In some embodiments the damper is a squeeze film damper. In some embodiments, the squeeze film damper includes an insert having a plurality of first protrusions, a cup configured to receive the insert, and the cup having a having a plurality of second protrusions interdigitated with the plurality of first protrusions.
Transfer apparatus and article taking-out method
According to an embodiment, a transfer apparatus includes a gripper, a first driving mechanism, an elastic passive joint part, a conveyor, a second driving mechanism, and base. The gripper grips an article. The first driving mechanism linearly moves the gripper in at least two directions including a first direction and a second direction intersecting with the first direction. The elastic passive joint part is interposed between the gripper and the first driving mechanism, and operates in accordance with an operation of the gripper. The conveyor conveys the article. The second driving mechanism linearly moves the conveyor in the at least two directions, and is connected to the conveyor. The base supports the first driving mechanism and the second driving mechanism.
Extended-reach assist device for performing assembly tasks
An extended-reach assist device for an assembly task includes a base mechanism and a compliant end-effector. The articulated base mechanism provides one or more passive degrees of freedom. The end-effector is connected to the base mechanism, and has one or more active or passive degrees of freedom collectively configured to react to contact forces with the assist device when completing the dexterous assembly task. A weight of the end-effector is supported by the base mechanism. The end-effector may be optionally configured as a passive device configured to produce a remote center of compliance or as a robot mechanism. A mechanism may actively or passively augment a force applied by the operator. A sensor may detect a signature indicative of successful task completion, e.g., an acoustic, visual, or audio sensor.
Systems and methods for providing contact detection in an articulated arm
A sensing manipulator of an articulated arm is disclosed. The sensing manipulator includes a compliant section and a movement detection system provided along a first direction of the compliant section such that movement of the compliant section along both the first direction and at least one direction transverse to said first direction, are detectable by the movement detection system.
Joint driving apparatus and robot apparatus
The present invention allows a joint driving apparatus of a robot apparatus to measure joint driving torque with high accuracy and perform joint torque control accurately and reliably using a simple, inexpensive, small, lightweight and sturdy configuration without being affected by cross-axis disturbance forces. A joint driving apparatus includes a housing unit fixed to a first link; a bearing mounted in the housing unit and adapted to rotatably support a second link; a driving unit housed in the housing unit and adapted to rotationally drive the second link; a supporting unit installed between the driving unit and the housing unit and adapted to support the driving unit on the housing unit; and a sensor adapted to detect torque generated on the supporting unit.
Modular snake arm with articulated drive shaft
A modular robotic snake-arm assembly is described which is animated principally by an articulated drive shaft that threads the length of the snake-arm. The articulated drive shaft is driven by a motor in the fixed base. One or more clutch mechanisms in each segment couple with the articulated drive shaft so as to cause all snake arms further from the base to reorient in either one or two angles, in either direction. Snake-arm segments can be coupled end-to-end to form a robotic snake arm of great length.