Abstract: A ball screw including a threaded spindle and a spindle nut has a ball deflector arranged in an opening in the lateral surface of the spindle nut. The ball deflector is formed with an upper shell and a lower shell, the lower shell being arranged radially inwardly closer to the spindle nut longitudinal axis than the upper shell. The lower shell has a substantially half-shell-shaped contour. Both the upper shell and the lower shell are fastened in the spindle nut without any further, discrete mechanical fastening elements, and the ball deflector formed thereby does not protrude beyond the outer contour defined by the spindle nut.

Abstract: A surgical system includes a surgical instrument that is sensitive to backlash that would adversely affect the transmission of controlled torque and position to the surgical instrument. The surgical instrument is coupled to motors in a surgical instrument manipulator assembly via a mechanical interface. The combination of the mechanical interface and surgical instrument manipulator assembly have low backlash, e.g., less than 0.7 degrees. The backlash is controlled in the surgical instrument manipulator assembly. From the drive output disk in the surgical instrument manipulator assembly to the driven disk of the surgical instrument, the mechanical interface has zero backlash for torque levels used in surgical procedures.

Abstract: A power steering device includes a bearing rotatably supporting the tip side of a worm shaft, a gear case provided with the housing hole for housing the worm shaft and a holder housing the bearing. The holder includes a first holder holding the bearing, a second holder having the guide part configured to guide a movement of the second bearing toward a worm wheel, and a spring provided in a compressed state between the first holder and the second holder and configured to bias the first holder toward the worm wheel. The second holder includes a holder opening part configured to allow the bearing and the first holder to pass through thereof in the guiding direction of the guide part to guide the bearing, and the first holder faces an inner peripheral surface of the housing hole through the holder opening part.

Abstract: A supported spindle for a device equipped with a spindle nut. The supported spindle includes a spindle body extending along its center longitudinal axis, a support plate, which is welded onto the spindle body in such a way that a weld seam formed between the spindle body and the support plate extends around the center longitudinal axis of the spindle body, and a ring element framing a section of the center longitudinal axis of the spindle body, which contacts the support plate on at least one first contact surface of the ring element and contacts the spindle body on at least one second contact surface of the ring element in such a way that the ring element is clamped between the support plate and the spindle body.

Abstract: A robot 1 having a first assembly 4, 5 and a second assembly 3, 6, wherein a bearing arrangement 24, 25, 52, 53, by which the second assembly 3, 6 can be moved relative to the first assembly 4,5 is provided in the first assembly 4,5. The bearing arrangement 24, 25, 52, 53 comprises a first fastening element 26, 27, 54, 55, and the second assembly 3, 6 comprises a second fastening element 30, 31, 60, 61, wherein the first fastening element 26, 27, 54, 55 and the second fastening element 30, 31, 60, 61 are connected to one another, and wherein the first fastening element 26, 27, 54, 55 and the second fastening element 30, 31, 60, 61 are designed to be complementary, at least in sections. A method for mounting two assemblies 2, 3, 4, 5, 6, in particular two robotic arms, of a robot is also disclosed.

Abstract: A ball screw drive (10) including a threaded spindle (12) and a spindle nut (14) which at least partially coaxially encloses the threaded spindle (12) and has a stop at an axial end face (18). A multiplicity of balls can circulate in the space (16) between the threaded spindle (12) and the spindle nut (14). A radial stop element (22) is connected to the threaded spindle (12) in a force-fitting manner and adapted to interact with the complementary axial end face (18) of the spindle nut (14). A bearing element is provided for receiving a first longitudinal end of the spindle nut (12). The radial stop element (22) and the bearing element are designed in combination as an integral bearing/stop element (24) which has two anti-rotation features (26, 28).

Abstract: The invention relates to a hinge for a household appliance, including a hinge housing, including a pivot arm, which is pivotably retained at the hinge housing, and including a drive device, which comprises an electric motor, by means of which the pivot arm is pivotable relative to the hinge housing, wherein the drive device includes: a drive housing formed separately from the hinge housing, provided in addition thereto and at least partially following the hinge housing in longitudinal extension direction of the hinge housing; a threaded spindle at least partially received in the hinge housing; and at least one screw element screwed to the threaded spindle.

Abstract: A worm reducer includes: a housing including a wheel accommodating portion, and a worm accommodating portion; a worm wheel including wheel teeth disposed on an outer circumferential surface and rotatably supported inside the wheel accommodating portion; and a worm including worm teeth disposed on an outer circumferential surface to mesh with the wheel teeth and rotatably supported inside the worm accommodating portion, wherein a proximal end portion of the worm is connected to a drive shaft such that torque can be transmitted. An inner circumferential surface of the worm accommodating portion includes a housing side step surface which faces a proximal end side in an axial direction of the worm. An outer circumferential surface of the worm includes a worm side step surface which closely faces the housing side step surface in the axial direction at a portion axially deviated from a portion where the worm teeth are disposed.

Abstract: A transmission assembly includes a hollow spindle, an outer wall of which is provided with an outer thread; a transmission worm disposed in the hollow spindle; a first transmission nut which is thread-fitted with the transmission worm, wherein the hollow spindle is rotatably positioned relative to the first transmission nut in an axial direction, and an external portion of the first transmission nut is provided with a locking structure for limiting the first transmission nut from rotating; a second transmission nut which is thread-fitted with the hollow spindle; a bushing which is bushed outside of the hollow spindle, the second transmission nut being fixedly connected with the bushing; and a guide tube which is rotatably limited in the bushing.

Abstract: The objective of the present invention is to provide: a robot arm extension device capable of adjusting an operating radius according to the operation environment and requirements of a robot in industrial sites; and a robot including the robot arm extension device. The robot arm extension device according to the present invention comprises: a housing; an adapter formed on one side of the housing and connected to the robot; a length extending part embedded in the housing and withdrawn from or inserted into the housing; and a driving part for providing the driving power of the length extending part.

Abstract: A surgical tool includes a drive housing that houses a plurality of drive cable capstans, an elongate shaft that extends from the drive housing, and an end effector operatively coupled to a distal end of the elongate shaft. A plurality of drive cables extend between the drive housing and the end effector, wherein each drive cable is associated with a corresponding drive cable capstan and rotation of the drive cable capstans correspondingly moves the drive cables to articulate the end effector. A manual release assembly is coupled to the drive housing and includes a release switch that is manually movable between a disengaged position and an engaged position. When the release switch is manually moved to the engaged position, the drive cable capstans are rotated to move the drive cables and thereby manually articulate the end effector.

Abstract: A mechanism for driving a first member for adjusting the orientation of the blades of a first stage of a turbine engine diffuser and a second member for adjusting the orientation of the blades of a second stage of the turbine engine diffuser, including a single drive wheel which simultaneously drives the first adjustment member and the second adjustment member and a set of gears which is arranged between the drive wheel and the two adjustment members, wherein the set of gears includes a first gearwheel which is directly coupled with the drive wheel and with the first adjustment member and which is coupled with the second adjustment member with a secondary gearwheel which is directly coupled with the second adjustment member.

Abstract: A working device has a configuration with seven degrees of freedom, and is configured to perform work using an end effector. The working device includes: a linear motion unit having three degrees of freedom; a rotary unit having three degrees of freedom; and a rotary drive mechanism having one degree of freedom. The rotary drive mechanism is configured to rotate the rotary unit relative to the linear motion unit. The linear motion unit is mounted on a mount such that a base portion thereof is fixed to the mount. The rotary drive mechanism is mounted on an output portion of the linear motion unit. The rotary unit is mounted on an output portion of the rotary drive mechanism. The end effector is mounted on an output portion of the rotary unit.

Abstract: There is disclosed an articulating structure that is steered by relative movement of a plurality of segments connected in series, the articulating structure including a first segment and a second segment arranged in contact with each other, wherein contact surfaces of the first segment and the second segment are rolling contact surfaces in line contact on a first direction contact line, the first segment has a pin on a side, the second segment has a coupling hole into which the pin is inserted, the first segment and the second segment make a relative rolling movement for translation of the first direction contact line while maintaining the line contact, and the coupling hole is formed with a larger area than the pin to allow the pin to make a relative position movement within the coupling hole during the rolling movement.

Abstract: A robotic handling apparatus includes a first arm member configured to pivot about a first pivot axis and a first drive unit configured to bring the first arm member into motion about the first pivot axis. A second arm member is configured to pivot about a second pivot axis, the second arm member being connected to the first arm member and having a distal end portion. A second drive unit is configured to bring the second arm member into motion about the second pivot axis. A third arm member is configured to pivot about a third pivot axis. A carrier unit is connected to the distal end portion of the second arm member and the distal end of the third arm member to define a distance.

Abstract: A seven-degrees of freedom modular robotic device is provided for controlling an instrument, e.g. a bone-drilling or milling device with a precision of about 50 ?m and maximum force of 50 N. The robotic device is a serial kinematic chain of six rotational degrees of freedom and one translational degree of freedom.

Abstract: A hybrid gear includes a first portion having a plurality of first engagement features formed from a first material and having a first stiffness and a second portion having a plurality of second engagement features in intermeshing arrangement with the plurality of first engagement features. The plurality of second engagement features is formed from a second material distinct from the first material and having a second stiffness. The first stiffness of the plurality of first engagement features is within 20% of the second stiffness of the plurality of second engagement features.

Abstract: A drive unit for joint being arranged between two arm members of a manipulator of a robotic system, the drive unit being intended for the rotatory drive of one arm member in relation to the other arm member, the drive unit having a first drive module, which is to be connected to a first arm member by means of at least one connecting element in a force- and torque-transmitting manner, and having a second drive module, which is to be connected with a second arm member by means of at least one connecting element in a force- and torque-transmitting manner, in which the connecting elements are configured to cooperate with the arm members in radial direction with respect to the rotary axis of the drive unit.

Abstract: Shifting device for shifting a transmission, having a first group of shift elements and a second group of shift elements, a selector shaft, which is arranged in such a way that it can be moved in translation along a longitudinal axis and rotated about the longitudinal axis, wherein it is possible, by moving the selector shaft into one of a plurality of possible translational positions, to select at least one shift element of the first group and at least one shift element of the second group and, by rotating the selector shaft, to actuate the selected shift elements. The at least one selected shift element of the first group can be actuated in phase or with an overlapping phase displacement or an offset phase displacement with respect to the at least one selected shift element of the second group.

Abstract: In one variation, a pulley arrangement includes a base pulley portion rotatable within a driving plane, an adjustable pulley portion coupled to the base pulley portion wherein the adjustable pulley portion is rotatable relative to the base pulley portion within the driving plane, and a driving member including an end coupled to the adjustable pulley portion wherein at least a portion of the driving member is wrapped at least partially around the adjustable pulley portion. In another variation, a pulley arrangement includes a base pulley portion rotatable around an axis, an adjustable pulley portion coupled to the base pulley portion and movable in a first direction parallel to the axis, and a sliding block engaged with the adjustable pulley portion, wherein the sliding block moves in a second direction different from the first direction, in response to compression of the adjustable pulley portion against the base pulley portion.