EP3765243A1 - Articulation de bras pour un manipulateur et manipulateur - Google Patents

Articulation de bras pour un manipulateur et manipulateur

Info

Publication number
EP3765243A1
EP3765243A1 EP19707749.8A EP19707749A EP3765243A1 EP 3765243 A1 EP3765243 A1 EP 3765243A1 EP 19707749 A EP19707749 A EP 19707749A EP 3765243 A1 EP3765243 A1 EP 3765243A1
Authority
EP
European Patent Office
Prior art keywords
gear
transmission
axis
arm
wrist joint
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19707749.8A
Other languages
German (de)
English (en)
Inventor
Martin Raak
Felix BERGER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Igus GmbH
Original Assignee
Igus GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Igus GmbH filed Critical Igus GmbH
Priority to EP21169767.7A priority Critical patent/EP3939751A1/fr
Publication of EP3765243A1 publication Critical patent/EP3765243A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J9/00—Programme-controlled manipulators
    • B25J9/08—Programme-controlled manipulators characterised by modular constructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J9/00—Programme-controlled manipulators
    • B25J9/10—Programme-controlled manipulators characterised by positioning means for manipulator elements
    • B25J9/102—Gears specially adapted therefor, e.g. reduction gears
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J9/00—Programme-controlled manipulators
    • B25J9/10—Programme-controlled manipulators characterised by positioning means for manipulator elements
    • B25J9/102—Gears specially adapted therefor, e.g. reduction gears
    • B25J9/103—Gears specially adapted therefor, e.g. reduction gears with backlash-preventing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
    • F16H1/12—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
    • F16H1/16—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
    • F16H1/22—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
    • F16H1/222—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with non-parallel axes
    • F16H1/225—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with non-parallel axes with two or more worm and worm-wheel gearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/22—Toothed members; Worms for transmissions with crossing shafts, especially worms, worm-gears
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/039—Gearboxes for accommodating worm gears
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/12—Arrangements for adjusting or for taking-up backlash not provided for elsewhere
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J17/00—Joints
    • B25J17/02—Wrist joints
    • B25J17/0241—One-dimensional joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J17/00—Joints
    • B25J17/02—Wrist joints
    • B25J17/0241—One-dimensional joints
    • B25J17/025—One-dimensional joints mounted in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
    • F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
    • F16H19/04—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising a rack
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/22—Toothed members; Worms for transmissions with crossing shafts, especially worms, worm-gears
    • F16H55/24—Special devices for taking up backlash

Definitions

  • the invention relates to an arm joint for a manipulator and a manipulator with arm joints.
  • the wrist joint for the manipulator has a gear wheel rotatable about a gear rotation axis.
  • the gear wheel is rotatably mounted in a housing of the arm joint and has an adapter on at least one of its end faces.
  • the adapter has on its side remote from the end face of the gear on a side facing the transmission axis of rotation opening.
  • a generic wrist joint is disclosed in DE 20 2014 101 342 Ul, wherein the gear wheel is designed as a worm wheel, which is mounted on the output side via adapter with a central opening on the housing.
  • the structure is complex. Furthermore, the structure offers no significant variations in terms of design and use of the wrist and thus the manipulator with such arm joints.
  • An object of the invention is to develop the generic wrist joint or the manipulator with the generic wrist joint so that it has a simpler structure, is easier to install and more variation options in terms of construction and possible use.
  • the internal thread provides the possibility for a rapidly producible, safe and inexpensive connection of the wrist joint with, for example, the gear wheel and / or a housing of an adjacent arm joint of the manipulator.
  • connection can also be easily made a connection with a motor axis of a motor to drive the gear directly hereby.
  • certain types of connection can be made between two adjacent and, in addition, an adjacent wrist joint and moreover adjacent wrist joints which allow for certain relative movements between the connected wrist joints, wrist-to-wrist torque transmission and / or torque transmission.
  • the housing may have a receiving part for receiving a further transmission element.
  • This further transmission element can be arranged transversely to the transmission axis of rotation. It may be in operative connection with the periphery of the gear.
  • the periphery of the gear for example, a circumferential thread or a toothing, such as spur or bevel gear, have.
  • the design of the periphery depends on the particular type of gear built up by the gear wheel and the further gear element. This will be described below in more detail by way of example.
  • the bearing of the gear can be done by means of any suitable bearings, such as plain bearings, ball bearings, especially double ball bearings, or roller bearings.
  • suitable bearings such as plain bearings, ball bearings, especially double ball bearings, or roller bearings.
  • plastic bearings in particular plastic plain bearings are used.
  • the plastic bearings can be designed to be lubricant-free and thus maintenance-free.
  • the gear can be stored axially displaced held. The storage can be done via Radiaxlager that allow freedom of movement of the gear only in the circumferential direction.
  • the adapter may be rotatably mounted about the transmission axis of rotation on the housing.
  • the storage of the transmission component can be done alone via adapters.
  • the adapter may be a single component, preferably a one-piece component.
  • the adapter may be mechanically or integrally, in particular materially connected to the gear.
  • the adapter with the internal thread can be at least rotationally fixed to the gear, in particular fixed or integrally connected to the gear.
  • the central opening may have a circular cross section and be introduced in the direction of the axis of rotation in the gear. In particular, the central opening is accessible from the outside.
  • housing also includes frame or base on which the wrist joint is constructed.
  • the gear may have on its two end faces an adapter and be rotatably mounted in the housing via the two adapters.
  • the bearing of the gear to the transmission axis of rotation can be symmetrical.
  • the gear can be rotatably mounted with respect to the transmission axis of rotation at both end faces in each case via an adapter to the housing.
  • the bearings on both sides of the gear can be the same design.
  • both adapters may, at their sides remote from the end faces of the gear wheel, each have a central opening with an internal thread relative to the gear rotational axis.
  • an operative connection to an adjacent wrist joint can be made.
  • This connection can also be made to a torque axis, such as engine rotation axis and / or another component, such as extension, coupling or tool.
  • the gear wheel and / or the further gear element in each case play free to the housing and / or that the gear wheel and the further gear element are arranged without play into one another. Thanks to the freedom of play, a smooth running and a reduced wear of the gear can be achieved during operation.
  • the backlash can be carried out so that, for example, to compensate for a game created by wear between the respective interacting components adjustable or nachj ustiertbar.
  • an adjustment for play-free arrangement of the gear and / or the further transmission element may be designed for the housing.
  • the adjusting device can serve for the backlash-free arrangement of the gear wheel and of the further gear element relative to one another.
  • the further gear element may have an effective axis spaced in a direction of spacing from the transmission rotational axis.
  • the further transmission element can be arranged stored in the receiving part of the housing.
  • the axis of action can be arranged transversely to the transmission axis of rotation.
  • the axis of action can be arranged perpendicular to the transmission axis of rotation.
  • Gear rotation axis and effective axis can not be arranged intersecting.
  • the transmission rotational axis and the axis of action can be arranged parallel to a plane.
  • the plane may extend perpendicular to a distance extending in the distance between the effective axis and the transmission axis of rotation.
  • the distance direction can extend radially to the transmission axis of rotation and that from the gear wheel to the further gear element.
  • the gear wheel and the further transmission component can be arranged relative to each other for setting a relative to the distance direction axial backlash in the distance direction movable and festses.
  • the relative movement to Game adjustment in the distance direction can be done by shifting the gear and / or the other transmission element relative to the housing.
  • the distance is the minimum distance between the active axis and the transmission axis of rotation.
  • the setting or adjustment via a derivation on effective in the distance direction oblique planes take place.
  • only the gear for adjustment in the adjustment direction is arranged to be movable relative to the housing.
  • the further transmission element may be arranged statically with respect to a linear movement in the adjustment direction relative to the housing.
  • the bearings for the gear can each have a first bearing ring associated with the housing and a second bearing ring associated with the gear.
  • a setting force can be coupled via the inclined plane in the direction from the gear wheel to the further gear element in the first bearing ring.
  • the inclined plane can accordingly have a surface normal, which points with a directional component in the direction of distance to the further gear element.
  • the inclined plane may be inclined at a preferably constant angle of inclination to the distance direction.
  • the angle of inclination may be less than / equal to 45 °, less than / equal to 30 ° or less than / equal to 10 °.
  • the inclination angle is dimensioned so that a self-locking of the sliding movement occurs.
  • the prerequisite for self-locking is that the friction caused by sliding resistance to slippage or twisting of two adjacent or touching Body is less than or equal to a static friction, which precludes this relative sliding movement of these bodies.
  • the adjustment may be provided as part of the adjustment at least one movably mounted on the housing adjustment.
  • the adjustment can be arranged transversely to the direction of spacing on the housing movable and in particular mounted detectable.
  • the single element may slide off while creating the adjustment force on the inclined plane.
  • the adjusting element and / or the first bearing ring may each have an inclined plane through which the sliding takes place.
  • the adjusting element can be designed as a threaded bolt with a cone-shaped working end, with which the bolt slides off transversely to the adjustment direction into a matching adjusting recess provided on the first bearing ring.
  • the screw bolt and the adjusting recess can be positioned at the height of a region of the first bearing ring which is upper in relation to a direction from the further gear element to the gear wheel. This is preferably the uppermost region of the first bearing ring.
  • the bolt itself can be arranged in a preferably self-locking threaded engagement with the housing schraubbeweglich on the same. To avoid tilting moments can be provided on both sides of the gear each have an adjustment, so that the adjustment of the backlash can be made on both sides of the gear.
  • the further transmission element can be arranged to be linearly movable in the direction of the axis of action and / or to be rotatable about the axis of action, in each case supported on the receiving part of the housing.
  • the further gear element can be designed for relative linear movement as a linear element, such as a rack. It can do that form a linear transmission together with the gear.
  • the further transmission element may be formed, for example, as a worm for a worm gear or as a spur gear for an inverted worm gear.
  • the further gear element can be arranged in a positionally variable manner relative to the housing in the direction of the axis of action.
  • the intended change in position may, but not necessarily, move in a slight amount, for example, to compensate only for installation by Aufsummtechnik of tolerances and / or operation by wear adjusting deviations from a prescribed backlash-free storage.
  • the further gear element can be designed as a worm and the effective axis as a drive shaft.
  • the worm can be arranged rotationally fixed on the axis of action.
  • the axis of action can preferably be supported axially rotatably on both sides of the worm on or in the receiving part.
  • the bearings can axially support the screw each end face.
  • the worm wheel can have a toothing adapted to the thread of the worm, in particular helical gearing.
  • the drive shaft can be arranged guided in a hollow profile.
  • the hollow profile can have a preferably centrally extending channel for the drive shaft in the longitudinal direction of the hollow profile.
  • the hollow profile can be used solely for the protection and in particular for the implementation of the drive shaft, ideally couple without torque in the wrist.
  • the drive shaft can with radial Slip be arranged in the channel.
  • the hollow profile may be arranged so as to be rotationally fixed and non-displaceable relative to the receiving part and / or in the same.
  • the drive shaft may be mounted on the hollow profile.
  • the hollow profile may comprise two portions spaced apart at least over the axial extent of the screw, i. a first section and a second section. At least the first section can be arranged to be axially movable in order to set an axial backlash of the worm on the drive shaft via an intended adjusting device of the adjusting device to the worm.
  • the axial mobility may, similar to the above in connection with the game setting the operative connection of gear and other transmission element already shown, move in the order of a game to be compensated. This game can be eliminated by adjusting the Justier convinceds.
  • the two sections can each be arranged counter to the receiving part at the end regions pointing away from the screw.
  • the first portion of the hollow profile may be mounted at one end to the adjusting device and disposed at its other end to be displaced towards the screw.
  • the adjusting device can in turn be mounted on the receiving part.
  • the second portion of the hollow profile can be mounted with its one end towards the screw and arranged at its other end against the receiving part.
  • the first section of the hollow profile may be held against the receiving part via the adjusting device and the second section of the hollow section via a provided clamping element, wherein the clamping element is screwed axially to the housing with respect to the axis of action against a stop.
  • the clamping element can have two coaxial sleeves, ie a radially inner sleeve and a radially outer sleeve Sleeve, which are in threaded engagement via conical screw thread.
  • the outer sleeve exerts on the inner sleeve a growing contact pressure on the hollow profile, which can lead to frictional engagement with the hollow profile.
  • the hollow profile is fixed to the housing via the clamping element screwed to the housing. If no contact pressure is generated, the clamping element screwed to the housing serves as a plain bearing.
  • the worm can be axially displaceable on the drive shaft, in particular in a press fit.
  • the spacing of the sections can be exactly equal to the axial extent of worm and drive shaft bearing with backlash.
  • the adjusting device can be designed to be effective with respect to the further gear element in the direction of the axis of action.
  • the adjusting device can be designed to adjust the freedom of play to press the first section of the hollow profile and, via this, the bearing axially in the direction of the first section of the hollow section to the second section thereof against the worm.
  • the first section of the hollow profile can be supported at one end on the end face of the adjusting device and the other end on the front side with respect to a direction from the adjusting device to the screw towards the front bearing of the bearing.
  • the second section of the hollow profile can accordingly be supported end-to-end on the rear bearing with respect to the direction from the adjusting device to the worm.
  • the other end may be resisted by a provided clamping element on the receiving part.
  • the axial spacing of the two sections of the hollow profile can thus not only the axial extent of the screw and the Include axial extent of the front and the rear bearing of the drive shaft on the hollow profile.
  • the threads of the clamping element and / or the adjusting device are designed to be self-locking.
  • the adjusting device may have a blind opening which is axial to the axis of action.
  • the drive shaft can be arranged freely projecting with a free end in the axial blind opening.
  • the adjusting device can be fixed on the one hand to the receiving part and on the other hand, for example, a slidably mounted on the hollow profile component, such as sleeve, which rests with respect to the active axis of the front side of the front bearing.
  • the sleeve can be further pressed by means of a provided adjusting device of the adjusting device under axial displacement of the front bearing against the screw until backlash is achieved.
  • the adjusting device can be formed like a nut.
  • the adjusting device can be actuated from the outside. It can have a threaded engagement. The threaded engagement may be self-locking.
  • the front bearing With rotation of the screw, the front bearing can be moved axially to adjust a certain game to zero backlash. For example, if re-adjustment is necessary when a game occurs due to wear, the play that has occurred can be eliminated in a simple manner by actuating the adjusting device.
  • the transmission may be formed as an inverted worm gear.
  • the further gear element can be driven by the gear wheel.
  • the active axis is designed as a drivable hollow profile with the inner channel for receiving the drive shaft, such as motor shaft.
  • the worm wheel can be arranged rotationally fixed on the hollow profile.
  • the hollow profile in turn can be rotatably mounted on or in the receiving part.
  • the gear can have a circumferential external thread and the further gear component has a male thread adapted to the spur toothing.
  • the gear is with its external thread in threaded engagement with the face gear of the other transmission component.
  • the pitch of the external thread of the worm as further gear element is larger and in particular about 1.5 times to 4 times greater than the pitch of the external thread of the trained as a "worm gear" in the inverted worm gear Pitch in the inverted worm gear a possibly adjusting game also be less than that of the worm gear.
  • the gear as a gear and the further gear element are formed as a linear element, in particular as a rack member.
  • the rack member may also form the axis of action and be arranged linearly displaceable on the receiving part.
  • the linear element, in particular the rack element be arranged in a mounting position in the direction of the gear towards receiving groove of the hollow profile.
  • the receiving groove can be adapted to the linear element so that the linear element is arranged in the direction of the axis of action and circumferentially to the same displacement.
  • the linear element is arranged positionally immutable in the receiving groove.
  • the hollow profile may be formed as a multi-functional profile.
  • the hollow profile in a gear formed as a linear transmission, in an installed position to the gear towards open receiving groove for the linear element, in particular the rack section having.
  • an advantageous feature of the hollow profile is the possible channel-like in the longitudinal direction of the hollow profile extending through hole or the inner channel for the drive shaft and for the motor drive shaft.
  • the hollow profile may have a further receiving groove for receiving sensor elements, such as displacement transducer or magnetic tape, and / or control and / or supply lines for the sensor elements.
  • this further receiving groove is arranged on a diametrically opposite to the axis of action outside of the hollow profile.
  • the hollow profile can have a stop device for limiting a linear path, in that, for example for a linear gear or a worm gear, it has in particular laterally undercut receiving grooves for fastening elements for non-rotatable connection of the hollow profile to the receiving part of the housing.
  • the cross section of the associated receiving groove adapted anchor elements be provided, which are arranged displaceably at least in one of the lateral grooves and in particular in the same fixable.
  • the hollow profile can also be held rotationally and non-displaceably to the housing.
  • the overall wrist joint and / or the transmission components may have a modular structure. It may be the transmission component and the further transmission element individual module components. These can be composable to create a particular type of transmission, such as worm gear, inverted worm gear or spur gear to the gearbox, without requiring the storage of the gear has to be changed.
  • modular components are easily interchangeable and variable with each other.
  • a modular construction is costly. It can be provided, for example, a modular system with modular components of different types of transmissions and different transmission sizes, housing and / or housing parts such as covers or end-side end elements, adapters and / or hollow profiles.
  • the wrist can be designed to be driven by a motor.
  • the wrist joint may be part of a motor drive with electric motor and gearbox for converting the engine torque.
  • an associated motor spaced from the wrist joint be arranged.
  • the engine may be arranged away from the transmission.
  • the transmission can be driven directly by the engine.
  • the engine torque can be transmitted, for example, via the drive axle to the gear wheel or to the further gear element.
  • the motor can be designed as a brushless DC motor.
  • a manipulator can be provided with at least one wrist joint according to one of the previously and subsequently mentioned embodiment.
  • the manipulator may have at least two arm joints, which are arranged in operative connection with one another.
  • the structural design of the at least two arm joints can be the same, at least except for the gear and the further transmission element.
  • the at least two arm joints can be mechanically connected to each other.
  • the two arm joints can be connected by means of a connecting device in a connecting position force, motion and / or effective management.
  • the at least two arm joints can be arranged coaxially aligned with respect to the transmission axis of rotation facing each other.
  • the at least two arm joints can be rotatably mounted about a common transmission rotational axis.
  • the at least two wrists can respect the transmission axis of rotation be arranged frontally facing each other.
  • the mutually facing end sides of the arm joints may each have the central opening.
  • the central openings may be arranged in alignment with each other.
  • the central openings of the at least two arm joints may be identical.
  • the connecting device may comprise parallel connectors, by means of which the at least two arm joints in the connecting position with respect to a plane perpendicular to the transmission rotational axis parallel to each other and further be held axially displaceable relative to each other.
  • the parallel connectors may serve in the connecting position for the spaced parallel positioning of the at least two arm joints and / or for connecting the at least two arm joints. Due to the parallel connector, the at least two arm joints or furthermore further directly or indirectly adjacent arm joints can be held parallel to one another and connected in a connected manner.
  • the parallel connectors can be constructed at least substantially rotationally symmetrical to the transmission axis of rotation.
  • the connecting device can be designed so that the parallel connector in the connection position functionally effective on certain components of the arm joints attack.
  • the manipulator can be provided in each case with respect to the transmission axis of rotation that engages at least one radially inner than inner connector trained parallel connector torque transmission effective in the mutually facing central openings of the frontally adjacent arm joints.
  • a radially outer formed as an outer connector parallel connector may be provided, which is designed to engage the housings frontally adjacent arm joints.
  • a transversely extending to the transmission axis of rotation a parallel connector designed as a cross connector is provided, which is adapted to apply torque transfer-wise radially inward into the central opening of an arm joint and radially spaced apart from the central opening on the housings of the arm joint at the front-adjacent arm joint.
  • a transmission of the torque from the transmission rotational axis of one arm joint to the transmission rotational axis of the other arm joint takes place.
  • the housing of the two arm joints and the transmission axis of rotation of the two arm joints can each be firmly connected to each other.
  • the transmission axes of rotation of the two arm joints via an inner connector and the housing of the two arm joints via an external connector can be rotatably connected to each other.
  • connection of the two arm joints can be designed as a rotary joint.
  • the torque acting on the transmission rotational axis of one of the two arm joints can be transmitted to the housing of the other arm joint.
  • the two arm joints are rotatably connected to each other via a transversely extending to the transmission axis of rotation transverse connector.
  • the cross connector can be rotationally fixed with a radially inner end portion, in particular being able to be rotated and displaced, connected to the transmission rotational axis of one of the two arm joints.
  • the cross connector may be slidably or rollably rotatable with a radially outer end portion connected to the housing of the one wrist joint and fixed to the housing of the other wrist joint.
  • the housing of the one arm joint slidably or rollably abut the radially outer end portion of the cross connector.
  • the at least two arm joints can be connected to one another by forming a rotary guide of one arm joint on the other arm joint.
  • an arm joint rotated about the transmission rotational axis can be guided on the other wrist joint. In particular, this can be done without any significant torque transfer from one wrist joint to the other wrist joint, except for any friction losses caused by the guide.
  • conventional measures such as a Teflon coating on the friction surfaces, may be provided.
  • the transmission axes of rotation of the two arm joints via a radially inner formed as an inner connector parallel connector and by a radially outboard than outer connector trained parallel connector slidably or rollably with the housing of the other arm joint and rotationally fixed to the housing of the one Arm joints connected.
  • the outer connector to form the rotary guide slidably or rollably connected to the housing of one arm joint and rotationally connected to the housing of the other arm joint.
  • the rotationally fixed connection of the transmission axes of rotation on the inner connector is used in the rotary guide initially the axial cohesion of the two arm joints.
  • one arm joint becomes twisted by its rotation at the other wrist joint, i. guided on the housing thereof.
  • no torque is transferred to the other pivot, except for possible friction losses.
  • the transmission, for example, the other arm joint for the coupling of, for example, a motor torque is still "free".
  • the parallel connectors insofar as they are formed, can transmit torque into the connection position in a torque-transmitting manner engage the facing central openings or in both facing central openings, for the respective engagement have an end portion with an internal thread of the respective central opening adapted external thread.
  • the two threads engage each other in a torque-transmitting manner.
  • a corresponding Einschraubensweg for producing the screw connection can be limited stop.
  • the inner connector for producing a rotationally fixed connection of both arm joints two free ends each having a portion with external thread for engaging in the installation position facing each other central openings of two axially adjacent arm joints. In the non-rotatable connection, an immediate transfer of torque from a gear of one joint to the gear of the other joint done.
  • a particular advantage is considered to block a relative rotation of internal thread to external thread in the connecting position.
  • internal threads and external threads are fixed to each other. This allows a respect to the transmission rotational axis play-free arrangement of the portion with the external thread, which is in threaded engagement with the internal thread of the central opening.
  • at least one blocking element such as a bolt, pin or screw element, is provided for the play-free threaded engagement of internal threads of the central opening and external thread of the end section.
  • the blocking element can be arranged axially in the connection position with respect to the transmission rotational axis in a blocking opening adapted to it between the two intermeshing threads.
  • the blocking opening can be created by introducing a similar semicircular groove into both threads, with the two grooves in a specific relative Assemble the rotational position of the two threads to the circular blocking opening.
  • the end portion can be screwed to reach its connection position backlash against the stop in the central opening.
  • the blocking element can be introduced between the two threads.
  • the blocking element allows a play-free rotationally fixed connection by blocking the threaded engagement.
  • the two components with the central openings frontally screwed against each other.
  • the blocking element can, both thread cutting, are introduced parallel to the transmission axis of rotation. It can be provided with respect to the two threads, an overlap region in which the external thread and internal thread overlap radially when threaded engagement with respect to the transmission axis of rotation.
  • the overlapping region may have a hollow cylindrical shape in accordance with the cylinder geometry of the central opening.
  • a plurality of, for example, six or eight blocking openings are provided, which are preferably circumferentially equally spaced in the connecting position and are further arranged with respect to the transmission axis of rotation at an equal radius.
  • the number of the blocking openings constituting grooves of the rotation angle is reduced, which is necessary to reach for adjustment a rotational position in which the grooves join together again to the blocking openings.
  • the manipulator may be modular. Individual modules may, for example, the arm joints per se, the engine, motor shaft for transmitting the torque to the transmission, in particular to the gear or the other transmission component, each of the individual components of the arm joint such as housing, gear, further transmission component, adapter, and connecting components, as the parallel connector, and / or the hollow profile.
  • 1A-1C each show a view of an embodiment of an arm joint
  • FIGS. 2A-2B are each a view of another embodiment of the wrist joint similar to that of Figure 1, but with adjustment
  • FIG. 2C shows a detail enlargement IIC according to FIG. 2B
  • FIGS. 3-5 each show a view of a further embodiment of the wrist joint with a motor connected in a torque-transmitting manner
  • Fig. 6 is a side view with a detailed representation of the cooperating gear members according to Figures 1-5, Fig. 7 a with respect to a transmission axis of rotation
  • FIGS. 12A and 12B each show a view of a hollow profile axis;
  • FIG. 13 is a perspective view of a rack profile for the wrist joint according to Figure 11,
  • FIG. 15 is a side view of the embodiment of the wrist joint according to Figure 1, here with frontal guide insert for a motor shaft,
  • FIG. 17 shows a detail enlargement J according to FIG. 16, FIG.
  • FIG. 19 is a perspective view of two fixedly connected arm joints IV and V of an embodiment of a manipulator
  • FIGS. 20A and 20B show a side view and a longitudinal sectional view, respectively, of the arm joints according to FIG. 19,
  • 21A and 20B are each a view of an outer connector for the rotationally fixed connection of the housing of the two arm joints of Figure 18,
  • FIG. 22 is a perspective view of an inner connector for fixed connection of the two pivot axes of the two arm joints of Figure 18,
  • FIG. 23 is a perspective view of two pivotally interconnected arm joints I and II of another embodiment of the manipulator.
  • 24A and 24B are each a view of a cross connector for rotatably connecting the two arm joints of Figure 23,
  • 25A and 25B is a perspective view
  • FIGS. 26A and 26B each show a view of a further embodiment of the outer connector for carrying out a rotary guide between arm joints II and III;
  • FIG. 27 shows a perspective view of two arm joints IV and V, which are firmly connected to one another, of a further embodiment of the manipulator,
  • FIG. 28 is a longitudinal sectional view of Figure 27 with additional parallel to the arm joint V rotating arm joint V
  • Fig. 29A and 29B is a perspective view
  • FIG. 30 shows a side view of a further embodiment of the manipulator with three arm joints according to FIGS. 25A and 25B and three arm joints according to FIG. 28, FIG.
  • Fig. 31 is a longitudinal sectional view of another embodiment of the manipulator with three arm joints of Figure 28 and two arm joints of Figure 23 and
  • 32A and 32B is a perspective view
  • FIGS. 1-18 without wishing to be limited thereto, possible embodiments of an arm joint 1 for a manipulator M are shown in different Views and partial views shown.
  • FIGS. 19-32 show possible embodiments of the manipulator M with arm joints 1 combined with one another, which are in operative connection with one another. It is immediately apparent that a large number of further combinations and couplings of the arm joints 1 are possible, which are also included in the scope of protection.
  • the arm joints 1 each have a gearwheel 2 which is rotatable about a transmission rotational axis g.
  • the gear 2 is rotatably mounted in a housing 3 of the arm joint 1. It has in the embodiments of the arm joint 1 shown in the figures on both of its end faces 21 each have an adapter 22.
  • the gear 2 is connected via the two adapters 22, i. with respect to the transmission axis of rotation g on both sides in each case via a bearing 7 in the housing 3 rotatably arranged.
  • FIGS. 18A and 18B each show an individual representation of the adapter 22, which is an independent component here. Alternatively, at least one of the adapters 22 may be integrally connected to the gear wheel 2.
  • the two adapters 22 each have on their side facing away from the end face 21 of the gear 2 side 23 with respect to the transmission axis of rotation g central opening 24 with internal thread 25. Minimally, only one of the two adapters 22 can be provided with the central opening 24. As can be seen in FIGS. 18A and 18B, the adapters 22 each have axially protruding cylindrical plug-in projections 221, which are arranged at a radius and circumferentially equidistant and, in the installed position, axially engage in a plug-in opening 222 provided on the gear wheel 2.
  • the plug openings 222 are formed as through holes, in the in the installed position in each case from two sides axially an associated plug-in projection 221 engages.
  • the adapters 22 and the gear wheel 2 as a whole are in each case rotationally symmetrical to the transmission rotational axis g.
  • the housing 3 has a receiving part 31 for receiving a further transmission element 4.
  • the further transmission element 4 is arranged transversely to the transmission axis of rotation g on an active axis w.
  • the effective axis w is positioned at a distance from the transmission rotational axis g.
  • the further transmission element 4 is arranged in the receiving part 31 via the effective axis w.
  • both, i. Axis of action w and gear rotation axis g spaced parallel to a plane extending perpendicular to a distance a running distance in the distance between the active axis w and gear rotation axis g.
  • the distance is the minimum distance between the two axes.
  • Gear rotation axis g and effective axis w do not intersect.
  • the transmission element 4 is in operative connection with the periphery of the gear wheel 2.
  • Gear 2 and further transmission element 4 form a transmission G for the translation of a coupled into the arm joint 1 engine torque.
  • the motor 5 per se is arranged at a distance from the respectively associated arm joint 1.
  • the gear wheel 2 and the further gear element 4 are arranged with respect to the distance direction a axially backlash acting in one another.
  • the gear wheel 2 and the further transmission element 4 are arranged relative to one another in the emission direction a.
  • the arm joint 1 alone, the gear 2 by means of an adjustment 6 in the direction of distance a relatively movable arranged to the housing 3.
  • the relative movement takes place here by a displacement of the gear 2 in the distance direction a to the further gear element 4 out.
  • the adjusting device 6 is connected to the bearings 7 of the gear 2 and the adapter 22, via which the gear 2 is mounted on.
  • the gear 2 is rotatably supported by its adapter 22 axially on both sides in each case via a bearing 7 on the housing 3.
  • the bearings 7 each have a housing 3 associated first bearing ring 71 which is arranged here with respect to the transmission axis of rotation g outside, and the gear 2 associated second bearing ring 72 which is here arranged with respect to the transmission axis of rotation g inside.
  • a setting force E acting in the direction of insertion a towards the further transmission element 4 is coupled into at least one of the first bearing rings 71.
  • a setting force K is generated via the adjusting device 6 radially to the distance direction a, which is diverted via a derived in the direction of distance a effective inclined planes S in the direction of distance a in the direction of the other transmission element 4, in the respectively associated first bearing ring 71 is introduced ,
  • the inclined planes are arranged here in each case at the same angle of inclination to the distance direction a, which is less than 60 ° here.
  • an adjusting element 61 is provided for each first bearing ring 71, which is arranged with respect to the distance direction a in the radial direction to the first bearing ring 71 out of position in an adjustment opening 62 on the housing 3.
  • This adjustment opening 62 is disposed above the transmission rotational axis g, specifically in a point of the radius which is the uppermost point with respect to a radius extending about the transmission rotational axis.
  • the adjusting member 61 has a threaded shaft 63 with external thread with which it is in threaded engagement with an opening provided in the insertion opening 62 internal thread. This thread engagement is self-locking.
  • the adjusting member 61 projects with a the inclined plane S having conical working end 64 in the housing 3 and is in a working position on a provided in a Einstellaus principleung 621 on the first bearing ring 71 inclined plane S at.
  • the gear 2 can be pressed with a screwing movement of the adjusting member 61 under the action of the inclined planes S in the distance direction a against the further gear part 4 until it rests against the same without play.
  • a working end 64 adapted and thus also the inclined plane S having opening on the first bearing ring 71 is provided for the engagement of the working end 64.
  • the transmission G is provided as part of the housing 3 axially on both sides of the gear 2 each one to the transmission axis g coaxially arranged annular cover 32 with an annular opening 33.
  • the cover 32 is fixed radially on the outside of the housing 3. If necessary, the cover 32 is provided with a central annular opening 33 through which the respective associated central opening 34 remains uncovered or at least accessible from the outside.
  • the annular opening 33 can also be used for mounting, in particular plain bearing, the drive shaft 51, in the motor shaft 52 and / or the hollow section 8.
  • the size of the annular opening 33 can be designed minimized to the particular purpose, for example, for storage on the respective diameter of the shafts 51, 52 or the hollow section 8, towards.
  • the adjustment hole 62 may be formed in which the above described adjustment member 61 is arranged accessible from the outside schraubbeweglich mounted in the cover 32.
  • the further gear element 4 is arranged axially free of play with respect to the active axis w to the gear wheel 2.
  • the gear G is formed as worm gear Gl with the output side gear 2 as worm wheel 26 and the drive side further gear element 4 as a screw 41.
  • Worm wheel 26 and worm 41 are shown in Figure 6 without the remaining wrist joint 1 in threaded engagement.
  • the effective axis w here is a drive shaft 51 directly driven by a motor 5.
  • the worm 41 is arranged in a clamping fit on the drive shaft 51.
  • the drive shaft 51 is, as Figure 5 removable, protected in a hollow section 8 and that is guided in an intended central inner channel 81 of the hollow section 8.
  • the drive shaft 51 is also axially with respect to the axis of action w axially on both sides of the screw 41 each rotatably supported via a bearing 7 on the receiving part 31.
  • the adjustment with respect to the axis of action w axially play-free mounting of the other transmission element 4 on the active axis w and thus the respect of the active axis w axial backlash interaction of gear 2 and further transmission element 4 is similar to the setting described above with respect to the distance direction a axially backlash interaction of Gear 2 and further transmission element 4.
  • the hollow section 8 itself is rotationally and non-displaceably arranged to the receiving part 31.
  • 8 undercut grooves 82 are provided on both sides of the hollow section, in the most twisted storage engage the hollow profile 8 provided on the receiving part 31 anchor projections.
  • the hollow profile 8 is divided into two sections, i. a first portion 83 and a second portion 84, divided.
  • the two sections 83; 84 are arranged with respect to the axis of action w axial extent of the drive shaft 51 bearing against the hollow section 8 two bearings 7 and the axial extent of the screw 41 from each other.
  • the area around the worm 41 for the worm wheel 26 is accessible from outside.
  • a structurally unobtrusive adjustment of the operative connection between the gear 2 and further transmission element 4 up to a relative to the direction of the axis of action w axial clearance is possible.
  • the two sections 83; 84 each engage with one of the screw 41 end facing the end of their associated bearing 7, that is, in each case with respect to the direction of the adjusting device to the screw 41 out, a front bearing 73 and a rear bearing 74, wherein they each with their the screw 41 remote from the other end are mounted on the receiving part 31.
  • the second section 84 arranged on the right in FIG. 5, is mounted on a clamping element 65. This is in the working position circumferentially here under frictional engagement radially on the outside of the second section 84.
  • the clamping element 65 is further arranged screwed to the receiving part 31.
  • the clamping element 65 is designed such that, with progressive screwing on the receiving part 31, it exerts a correspondingly increasing radial frictional force on the second section 84 in the circumferential direction, which causes a frictional engagement with the second section 84 in this application.
  • the first section 83 arranged on the left in FIG. 5, lies with its opposing end opposite the front side force transmission effective on an adjusting device 67 at. This is screwed to the receiving part 31 in the direction of the effective axis w.
  • the adjusting device has an adjusting device 671, via which the first section 83 can be pressed under axial displacement on the hollow profile 8 against the front bearing 73, which is then pressed against the further transmission element to the backlash. In this way, the axial play of the operative connection between the gear 2 and further transmission element 4 can be eliminated.
  • the adjusting device 671 such as Figure 4 removable, actuated by rotation of an externally accessible cap nut.
  • the adjusting device 67 has an axis of action w axial blind opening 65 into which the drive shaft 51 protrudes freely at the end. Non-binding means without abutting the sack opening 65 on the inside.
  • the bearing 7 described above for the gear 2 as the trained for the screw 41 further transmission element 4 are shown in the embodiments shown in the figures of the arm joints 1 each as a roller bearing, to which the invention is not limited, as well as any other suitable bearing shapes can be used.
  • the bearings may each be provided as sliding bearings, in particular plastic plain bearings, which are advantageously designed lubricant-free.
  • FIG. 7 shows another embodiment of the arm joint 1 in a cross-sectional view with respect to the transmission rotational axis g.
  • the gear G is embodied here as an inverted worm gear G2.
  • the torque on the drive side via the gear 2 is coupled and decoupled via the further gear element 4 on the output side to the effective axis w.
  • the gear wheel 2 has a peripheral external thread 27 as a spur gear and the other gear Transmission part 4 has a spur gear teeth 42.
  • the output side hollow section 8 forms the effective axis w.
  • the further transmission element 4 is rotationally mounted on the hollow profile 8.
  • the hollow profile 8 is rotatably supported by two axially spaced-apart clamping elements 65 in the receiving part 31.
  • the clamping elements 65 serve here for guiding and supporting without clamping the hollow profile 8.
  • the hollow profile 8 has an inner channel 81. Since the inner channel 81 in the embodiment of the arm joint according to FIG. 7 is not required for forming the inverted worm gear G2, other components, such as lines or, as indicated by way of example in FIG. 31, can guide a further drive shaft 51 through the hollow profile 8 for a remote wrist joint be without the further drive shaft 51 transmits a torque to the wrist joint 1.
  • FIGS. 10 and 11 each show a view of a further embodiment of the wrist joint 1; FIGS. 12 to 13 each show individual components of this embodiment.
  • the gear 2 as a spur gear 28 and the further gear element 4 are formed as a rack member 43.
  • the rack member 43 forms the effective axis w.
  • the rack member 43 is seconded in the installed position in a first receiving groove 84 @@@@, which is open in installation position to the gear.
  • the first receiving groove 84 has, as well as the lateral grooves 82, an undercut.
  • the rack member 43 engages in the installed position via a tail adapted to the undercut 44 in the first receiving groove 84 and is thereby axially non-rotatably and radially displaceable mounted on the hollow profile. Further, on both sides of the rack member 43 clamping elements 65 are provided, which are arranged in a clamping fit on the hollow profile 65 and on which the rack member 43 axially frontally to clamping elements 65th is applied. Thus, the rack member 43 is held axially displaceable in the receiving groove 84.
  • the first receiving groove 84 is arranged for meshing in the gear 2 open towards the same.
  • the hollow section 8 is shown in perspective or in a cross-sectional view.
  • a lower receiving groove 86 is provided for receiving metrological components on the underside, in which case a magnetic strip Ma is arranged as an example for measuring the distance.
  • An associated sensor R for measuring distance is shown by way of example in FIG. 14, wherein the latter has a half-shell-like shape and is designed so that it can be fastened centrally to the receiving part 51 with respect to the effective axis w.
  • FIGS. 19 to 26B three basic connection forms between at least two arm hinges 1 are shown by means of side views, sectional views and detailed views. These are coaxial with respect to the transmission axis of rotation g and arranged frontally parallel to each other. They each have, at least on the mutually facing end faces, the central opening 24, wherein these two openings 24 are arranged in alignment with each other.
  • the at least two wrists 1 are part of an embodiment of the manipulator M.
  • a connecting device 9 is provided with parallel connector 91, by means of which the arm joints 1 are arranged parallel to and spaced from each other and rotatably held about a common transmission axis of rotation g.
  • two arm hinges 1 are rigidly connected to each other to form a rigid connection VI, that is, the housings 3 are at least two Wrist joints 1 and that the gears 2 of the at least two arm joints 1 are each twisted together.
  • the two transmission rotational axis g of the two arm joints 1 via a radially inner formed as an inner connector 92 parallel connector 91 rotatably connected to each other.
  • the housing 3 of the two arm joints 1 via a radially outer outer connector 93 designed as a parallel connector 91 rotatably connected to each other.
  • the inner connector 92 and the outer connector 93 are shown in individual views in FIGS. 21A and 21B and in FIG. 22, respectively.
  • the inner connector 92 has an elongated shape, each with an external thread 27 at both ends, with which he twisted into the two mutually facing openings 24 of the two interconnected arm joints 1 engages.
  • the outer connector 93 has a ring shape, over the axial extent of the two arm joints 1 are held spaced from each other. Furthermore, axially on both sides are circumferentially equally objected and arranged on a radius plug-in projections 94 are provided, which engage axially in the installation position provided in accordance with the housing 3 plug openings.
  • a plurality of identically formed blocking elements 68 here in the form of a screw 681, axially in an overlapping area of the two interlocking threads 25; 95 are screwed to this about a relative rotation of the two threads 25; 95 block. This ensures that the two interconnected arm joints 1 are held axially displaced and twisted test.
  • the eight screw elements 681 here are arranged at a radius and circumferentially equidistant.
  • Each screw 681 is one between the interlocking threads 25; 95 introduced blocking openings 69 assigned.
  • To form the blocking openings 69 are in both threads 25; 95 per blocking opening 69 each introduced an axial groove 691 with a semicircular cross-section, the then two axial grooves 691 in threaded engagement, in a certain relative rotational position of the two threads 25; 95 superimposed, in which the axial grooves 691 complement each other at least to a circular blocking opening 69.
  • the two arm joints 1 can be screwed together at the spacing of the same via the outer connector 93 and via the threaded engagement of the inner connector in the two central openings 24, that the thread 25; 95 mesh of the two openings 24 as possible under low preload clearance and have additionally supplemented the axial grooves 691 to the respective blocking opening 69, and then screw in a further step, the screw 681 in the respective associated blocking opening 69.
  • the game can be eliminated, for which first the screw elements 681 one of the two openings 24 must be solved.
  • the adjustment to the backlash of the threaded engagement is thus gradual, that is here at eight blocking elements 68 is the distance extends over a Twist angle of 45 °.
  • the accuracy in which the game setting or freedom from play can therefore depends, inter alia, on the number of blocking elements 68.
  • This type of adjustment of a backlash of a threaded engagement of two interlocking threads 25; 95 is also used in other embodiments of the manipulator M described below.
  • two arm joints 1 are rotatably connected with one another with the formation of a rotary joint V2 with respect to the transmission rotational axis g.
  • the rotary joint V2 was here by means of a cross connector 96.
  • the cross connector 96 has a bent shape and engages with a radially inner threaded sleeve-like end portion 961 under threaded engagement radially inward and axially into the internal thread 25 of the central opening 24 of the gear 2 of the one arm joint 1 axially displaceable one.
  • the coupled from the gear 2 of the one arm joint 1 in the cross connector 95 torque can be transmitted to the housing 3 of the other arm joint 1, so that the two arm joints 1 rotate relative to each other in torque transmission with respect to the transmission axis g.
  • the cross connector 96 laterally axially to the one wrist joint 1 facing sliding surfaces 97, where alone the one arm joint 1 radially outwardly abuts the cross connector 96.
  • FIGS. 25A and 25B show a further embodiment of the manipulator M with three interconnected arm hinges 1.
  • the arm joints 1 are additionally indicated by the Roman numerals I-III for better clarity in the figures. In each case according to FIG.
  • the wrist joint I on the right, the wrist joint III on the left and the wrist joint II are arranged centrally between the two wrist joints I and II.
  • the longitudinal sectional view here parallel to the active axes w shown in Figure 25A of the arm joints I-III there is between the wrist joint I and the wrist joint II already discussed above rotary joint V2, wherein the wrist joint I a worm gear Gl and the wrist joint II have a linear transmission.
  • a torque from the worm wheel 2 of the wrist joint I is coupled to the housing 3 of the wrist joint II, whereby this is rotated relative to the wrist joint I.
  • the gears 2 of the two arm joints II and I are connected via an inner connector 92 against rotation and slidably connected to each other. Via the inner connector 92 thus the spur gear 28 of the linear drive G3 of the wrist joint II is rotated, wherein the spur gear 28 on the output side, the rack member 43 meshes and moves linearly in the direction of the effective axis w.
  • an outer connector 93 is provided. As can be seen in FIGS. 26A and 26B, as in the case of the rotary connection V2, plug-in projections 94 are provided on the output-side front side and sliding surfaces 97 are provided on the drive-side front side. That is, the outer connector 93, each radially outward, rotationally fixed to the housing 3 of the wrist joint II and nadogleitbeweglich connected to the housing 3 of the wrist joint III. If the wrist joint II is actively rotated by the wrist joint I, the wrist joint II is simultaneously guided in a rotationally slidable manner on the wrist joint III.
  • FIGS. 27-28 and 29A-29B three further possibilities for connecting arm joints 1 are shown, which are each driven on the drive side via a worm drive G1.
  • the two arm joints 1 shown in FIG. 27 are shown in FIG. 28 and the two arm joints 1 shown in FIG. 29A are each shown in a longitudinal section in FIG. 29B.
  • the left arm joint 1 in FIGS. 27-29 has a worm drive G1.
  • the worm 41 of the worm drive G 1 is driven by a motor 5 arranged at a distance from the arm joint 1.
  • the arm joint 1 adjoining the left wrist joint 1 according to FIG. 28 has a linear drive G3.
  • the two adjacent arm joints are interconnected according to FIG. 28 via a rigid connection VI, so that the torque coupled by the worm wheel 26 of one arm joint 1 into the spur gear 28 of the other arm joint 1 is converted into a linear movement of the rack element 43 via the linear gearing G3.
  • a further wrist joint 1 with a linear drive G3 is provided, which is arranged at a distance from the other wrist joint 1 with a linear gear G3.
  • a spacer bridging the drive shaft portion 54 is provided for torque connection with the other arm joint 1, a spacer bridging the drive shaft portion 54 is provided. This is rotatably connected to the spur gears 28 of the two linear G3, so that the two linear G3 drives are driven synchronously via the worm gear Gl.
  • the drive shaft section 54 is rotatably mounted at both ends via a connection element 53 at the mutually facing central openings 34 of the arm joints 1.
  • the connecting element 53 is provided with an external thread 27 in a play-free threaded engagement described above with the internal thread 25 of the respective associated central openings 34.
  • This connection element 53 is shown by way of example in a single representation according to Figures 18C and 18D.
  • a further motor 5 is provided, which is coupled with its motor shaft 52 with respect to the transmission axis of rotation g frontally on the wrist joint 1 with worm gear Gl and connected via a coupling 55 to the drive shaft 51.
  • the drive shaft 51 passes through the wrist joint 1 with the worm gear Gl without transmitting torque to this wrist joint 1.
  • the two interconnected arm joints 1 is mounted in the remote from the two arm joints 1 central opening 24 as described above. Here he is rotationally connected to the gear 2 of the inverted worm drive G2.
  • the hollow section 8 is set on the other motor 5 in rotary motion.
  • the articulated joints 1 can be divided into a first group U1 and a second group U2, the first group U1 arranged at the bottom in FIG. 30 having already been described with reference to FIG. 25 and FIG. 30 at the top arranged second Group U2 have already been explained in more detail with reference to FIG. 28.
  • the arm joints 1 of the second group are attached here to a base B, wherein the arm joints 1 of the first group working side of the manipulator M are arranged.
  • the two arm joints 1, which are spaced apart via the drive shaft section 54, and thus the associated toothed rack elements 43 arranged in each case in a hollow profile 8, are moved in parallel and synchronously.
  • a motor 5 is provided in each case, which couples a torque in a guided in the respective associated hollow profile drive shaft and this drives the two outer joints 1 of the first group. It is clear that the manipulator M thanks to the arm joints 1, a space-consuming movement is made possible.
  • the arm joints 1 used can likewise be subdivided into two groups U2, U3.
  • One group is the already mentioned second group U2 and left in FIG. Since the toothed rod elements 43 mounted on a hollow profile 8 are moved in a synchronously linear manner parallel to one another, they can, as provided in FIG. 31, be firmly connected to one another by way of transverse webs 99 for their stabilization.
  • the arm joints 1 of both groups U2, U3 are arranged coaxially to a transmission rotational axis g.
  • the manipulator M has three substantially identical arm joints 1 with respect to the torque transmission 3, each with worm gear Gl, whose worms 41 are driven by a single drive shaft 51 passing through the arm joints 1.
  • the transmission components such as gear 2 and further transmission component 4, are designed so modular that the arm joints 1 are inexpensively mounted and interchangeable in all their embodiments described here.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Robotics (AREA)
  • Gear Transmission (AREA)
  • Manipulator (AREA)

Abstract

L'invention concerne une articulation de bras pour un manipulateur (M) qui comporte un moteur (5) pourvu d'une transmission (G). L'articulation de bras renferme une roue de transmission (2) pouvant tourner autour d'un axe de rotation de transmission (g). La roue de transmission (2) est montée de manière à pourvoir tourner dans un boîtier (3) de l'articulation de bras (1) et comporte, sur au moins un de ses côtés frontaux (21), un adaptateur (22). L'adaptateur (22) comporte, sur son côté (23) opposé au côté frontal (21) de la roue de transmission (2), une ouverture (24) centrale par rapport à l'axe de rotation de transmission (g). L'ouverture (24) centrale comporte un filetage intérieur (25) afin de faciliter la construction, de simplifier le montage et d'offrir de plus grandes possibilités de variation.
EP19707749.8A 2018-03-15 2019-02-21 Articulation de bras pour un manipulateur et manipulateur Withdrawn EP3765243A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP21169767.7A EP3939751A1 (fr) 2018-03-15 2019-02-21 Articulation de bras pour un manipulateur et manipulateur

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202018101462.5U DE202018101462U1 (de) 2018-03-15 2018-03-15 Armgelenk für einen Manipulator und Manipulator
PCT/EP2019/054305 WO2019174883A1 (fr) 2018-03-15 2019-02-21 Articulation de bras pour un manipulateur et manipulateur

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP21169767.7A Division EP3939751A1 (fr) 2018-03-15 2019-02-21 Articulation de bras pour un manipulateur et manipulateur

Publications (1)

Publication Number Publication Date
EP3765243A1 true EP3765243A1 (fr) 2021-01-20

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Application Number Title Priority Date Filing Date
EP19707749.8A Withdrawn EP3765243A1 (fr) 2018-03-15 2019-02-21 Articulation de bras pour un manipulateur et manipulateur
EP21169767.7A Pending EP3939751A1 (fr) 2018-03-15 2019-02-21 Articulation de bras pour un manipulateur et manipulateur

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP21169767.7A Pending EP3939751A1 (fr) 2018-03-15 2019-02-21 Articulation de bras pour un manipulateur et manipulateur

Country Status (8)

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US (2) US11865712B2 (fr)
EP (2) EP3765243A1 (fr)
JP (1) JP7264909B2 (fr)
KR (1) KR102484267B1 (fr)
CN (1) CN112135714B (fr)
CA (1) CA3093324C (fr)
DE (1) DE202018101462U1 (fr)
WO (1) WO2019174883A1 (fr)

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Publication number Priority date Publication date Assignee Title
WO2020118493A1 (fr) 2018-12-10 2020-06-18 Abb Schweiz Ag Boîtier pour boîte de vitesses en plastique et boîte de vitesses en plastique associée et robot
US12090651B2 (en) * 2020-12-07 2024-09-17 Easton Robotics, LLC Robotic farm system and method of operation
CN113146604B (zh) * 2021-05-06 2022-08-26 吉林大学 一种紧凑型具有变刚度被动柔性的人工肌肉模块
CN114657976B (zh) * 2022-04-19 2024-01-05 北京首钢建设集团有限公司 一种预应力钢管混凝土桩及其施工工艺

Family Cites Families (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB156972A (en) * 1919-11-25 1921-01-20 George Hardiman Ransom Improvements in or relating to worm gearing for varying the inclination of wind screens and the like
US1995789A (en) * 1934-04-24 1935-03-26 Wolkoff John Adjusting device
GB616342A (en) * 1941-09-25 1949-01-20 Ct D Etudes Tech Et D Inv S Improvements in and relating to slack absorbing devices for gearing
US3040717A (en) * 1958-09-08 1962-06-26 Houdaille Industries Inc Piston-rack rotary actuator
US3215391A (en) 1964-06-29 1965-11-02 Collins Radio Co Positioning device continuous in azimuth and elevation using multiple linear drives
US3572519A (en) * 1969-04-03 1971-03-30 Aida Tekkosho Kk Article transfer apparatus adapted to automatically feed material to one of presses or other processing machines
DE1959517A1 (de) * 1969-11-27 1971-06-03 Heidenhain Gmbh Dr Johannes Mechanischer Antrieb
US3682327A (en) * 1970-04-03 1972-08-08 Erie Eng Co Rotary work-handling attachment for work transfer device
US4310958A (en) 1977-12-07 1982-01-19 Regie Nationale Des Usines Renault Production-line automatic machine
JPS58211892A (ja) 1982-05-31 1983-12-09 松下電器産業株式会社 工業用ロボツト
JPS59173582A (ja) 1983-03-23 1984-10-01 Sumitomo Electric Ind Ltd 内燃機関潤滑用オイルポンプおよびそのロ−タ−
JPS59173582U (ja) * 1983-05-04 1984-11-20 三菱電機株式会社 産業用ロボツトの旋回駆動装置
JPS6140548A (ja) 1984-07-18 1986-02-26 Ebara Infilco Co Ltd 脱油ケ−キの含油率測定方法
JPS6140548U (ja) * 1984-08-20 1986-03-14 三菱電機株式会社 バツクラツシ調整装置
DE3804861A1 (de) 1988-02-17 1989-08-31 Joachim Baessler Einrichtung zum antrieb eines gelenkelementes eines roboters
DE3819278A1 (de) * 1988-06-07 1989-12-14 Schwaebische Huettenwerke Gmbh Linearfuehrung
ATA155691A (de) 1991-08-05 1993-04-15 Igm Robotersysteme Aktiengesel Getriebe zum antrieb eines gelenkes, insbesondere eines industrieroboters
DE4229601A1 (de) * 1992-09-04 1994-03-10 Lean Technik R Janzen Vorrichtung zur Erzeugung von synchronen Schub-/Drehbewegungen
US5639136A (en) * 1995-02-27 1997-06-17 Tol-O-Matic, Inc. Multimotion actuator for a rotary gripper
SE0303539D0 (sv) 2003-12-22 2003-12-22 Abb Ab Anordning för en industrirobot
ITMI20070824A1 (it) 2007-04-20 2008-10-21 Prisma S R L Dispositivo per il recupero e la regolazione del gioco tra i denti di una coppia di ingranaggi in particolare negli argani per ascensori
CN201129402Y (zh) * 2007-12-21 2008-10-08 扬州大学 中心距可调的蜗轮蜗杆传动装置
US8677854B2 (en) 2009-04-15 2014-03-25 ABB Researched Ltd. Apparatus for a robot arm
DE102010002285A1 (de) 2010-02-24 2011-08-25 ZF Lenksysteme GmbH, 73527 Schraubradgetriebe für eine Lenkung eines Kraftfahrzeugs
GB2481249A (en) 2010-06-20 2011-12-21 Innovations Ltd M Three dimensional selective compliant robot
CN201934582U (zh) 2010-12-07 2011-08-17 配天(安徽)电子技术有限公司 蜗杆减速器、机器人关节及机器人
KR200469673Y1 (ko) * 2011-05-04 2013-10-28 김치영 백래시 조정이 용이한 감속기어장치
WO2014079467A1 (fr) 2012-11-21 2014-05-30 Imo Holding Gmbh Engrenage à vis sans fin
US10256696B2 (en) 2013-04-05 2019-04-09 Festo Ag & Co. Kg Electrically actuated rotary drive device
DE202014101342U1 (de) 2014-03-24 2014-04-09 Igus Gmbh Roboterarm und Montageset
DE102015200741A1 (de) 2015-01-19 2016-07-21 Lenze Drives Gmbh Getriebe und Verfahren zur Einstellung des Verdrehspiels dieses Getriebes
JP6657824B2 (ja) * 2015-11-13 2020-03-04 株式会社デンソーウェーブ ロボットのハンド接続構造
DE102016101255A1 (de) 2016-01-25 2017-07-27 Neutrik Ag Verbinder
DE202016101255U1 (de) 2016-03-08 2016-04-13 Igus Gmbh Roboterarm
CN107175683B (zh) 2017-05-26 2019-01-08 遨博（北京）智能科技有限公司 一种用于机器人的连接机构

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CN112135714A (zh) 2020-12-25
DE202018101462U1 (de) 2018-04-26
KR20200130432A (ko) 2020-11-18
WO2019174883A1 (fr) 2019-09-19
US11865712B2 (en) 2024-01-09
JP7264909B2 (ja) 2023-04-25
US20240149437A1 (en) 2024-05-09
US20210001479A1 (en) 2021-01-07
KR102484267B1 (ko) 2023-01-02
EP3939751A1 (fr) 2022-01-19
CN112135714B (zh) 2023-08-22
JP2021518273A (ja) 2021-08-02
CA3093324A1 (fr) 2019-09-19

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