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
  • B25J9/16—Programme controls
  • B25J9/1602—Programme controls characterised by the control system, structure, architecture
  • B25J9/161—Hardware, e.g. neural networks, fuzzy logic, interfaces, processor
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
  • B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
  • B25J9/00—Programme-controlled manipulators
  • B25J9/16—Programme controls
  • B25J9/1628—Programme controls characterised by the control loop
  • B25J9/1633—Programme controls characterised by the control loop compliant, force, torque control, e.g. combined with position control
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
  • B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
  • B25J13/00—Controls for manipulators
  • B25J13/08—Controls for manipulators by means of sensing devices, e.g. viewing or touching devices
  • B25J13/085—Force or torque sensors
• • G—PHYSICS
  • G05—CONTROLLING; REGULATING
  • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
  • G05B2219/00—Program-control systems
  • G05B2219/30—Nc systems
  • G05B2219/40—Robotics, robotics mapping to robotics vision
  • G05B2219/40304—Modular structure

Definitions

• the present invention relates to a robot assembly.
• a robot arrangement for example an industrial robot, usually has a control device which is set up to execute a control program for controlling the robot arrangement and corresponding ones
• Control commands for the desired movement for example one
• the robotic arm To perform the desired movement, the robotic arm is typically equipped with a plurality of motors. An ordinarily ordered in a base of the robot assembly
• Control device converts the control commands into control signals, for example specific electrical voltages or voltage pulses or pulse trains, for controlling the motors.
• the object of the present invention is to provide an improved robot arrangement, in particular at least a part of the
• a robot assembly comprises at least four supporting structural parts, wherein the structural parts are connected to a chain in each case between two adjacent of the structural members to ordered joints, as well as for each of the joints a zuroisen joint motor for driven movement of the respective Joint-connected structural parts relative to each other.
• a control device is arranged in one of the structural parts, which is connected on both sides via a corresponding one of the joints with a respectively adjacent one of the structural parts, wherein the control device is configured to control at least three of the articulated motors and the electrical connection required for driving from the control device to each of Articulated motors by means of a each joint motor dedicated assigned separate control line, such as a control cable, is formed.
• the supporting structural parts such as a carousel, a rocker or a single member of a robot arm or a robot hand are variably aligned and / or positioned by the respective joints arranged between them, for example relative to a base of the robot assembly.
• the movements to be carried out can be initiated by the, in particular central, and executed, for example, as an integrated circuit, control device by corresponding control signals for each of the joint motors are output via the control lines of the control device. Due to the arrangement of the control device in one of the structural parts, which is connected on both sides via a corresponding joint with a respective adjacent of the structural parts, for each of the joints, the number of control lines, which must be performed over or through the corresponding joints, advantageously reduced become.
• first joint which defines a first robot axis, which movably supports the remaining structural parts in relation to a base of the robot arrangement.
• control device is arranged in a structural part behind a second robot axis, only the second robot axis must define the second robot axis via or via a second joint
• Control line between the control device and the joint motor for the joint with the first robot axis are performed. Both the joint with the first robot axis and the joint with the second robot axis can therefore be carried out in a particularly space-saving manner in terms of diameter or installation space. This thought can be used for joints, the more
• Control lines for each joint can be achieved.
• the solution according to the invention thus enables a more compact and / or slimmer design of the joints than in conventional robot arrangement, which have a control device arranged in the base.
• the joints which define the so-called.
• Basic axes, ie, the first and second robot axis, are made slimmer and more compact, whereby, for example, the interference contour of the robot assembly can be reduced.
• Control device in one of the (relative to the base) movable
• Structural parts also a simple and quick installation and / or maintenance of the robot assembly, since the control electronics of the articulated motors is preferably concentrated for each of the joints of the robot assembly in a single component, in particular in an integrated circuit. This eliminates, for example, a possibly troublesome troubleshooting.
• Structural parts in which the control device is arranged formed as a rocker of the robot assembly.
• the rocker is preferably connected via one of the joints with a carousel of the robot assembly and another of the joints with a robot arm of the robot assembly, in particular with a member of the robot arm, movably connected.
• the rocker at least supports the weight of the robot arm.
• the rocker can typically dissipate relatively high mass emitted by the control device heat effectively.
• the two articulated motors for driving the movement of the rocker relative to the carousel or the robot arm not in the rocker, but in particular in the carousel or in the robot arm installed are advantageously avoided that, in addition to the heat from the control device, further heat has to be dissipated from the articulated motors from the rocker arm. The dissipation of heat the
• Control device via the rocker is thereby particularly effective.
• the joints each arranged between two adjacent joints of the structural parts are each one
• Joint sensor associated with the detection of a joint state and generating corresponding sensor signals.
• the control device is preferably set up for processing the sensor signals.
• the joint sensor system preferably has a torque sensor which is set up to detect a torque acting on the corresponding joint and to output a corresponding torque signal.
• the joint sensor has a resolver which is adapted to detect an angular position of the joint and to output a corresponding resolver signal. The set up for the evaluation of these sensor signals
• Evaluation electronics are integrated in a preferred manner with an electronic control system for controlling the articulated motors in a circuit board, which in addition to cost savings in the production also a particularly advantageous placement within the robot assembly, namely in one of the both sides connected via a corresponding joint with a respective adjacent structural part structural parts allows. In particular, thereby the assembly and / or maintenance of the evaluation electronics can be simplified together with the control electronics.
• control device is set up, the joint motors associated with the joints
• Control device be configured to generate control signals for controlling the joint motors based on the sensor signals generated by the joint sensors. This makes it possible, the entire functionality of the robot assembly in a single component, in particular in a
• corresponding joint can be arranged with a respective adjacent structural part associated structural parts to integrate. This space can be saved, which would otherwise be provided for the sensor electronics.
• At least one of the joints is formed as a tilting joint and at least one of a joint motor dedicated dedicated control lines and / or at least one of the joint sensors dedicated dedicated sensor line via a loop around the at least one joint formed as a tilt joint.
• Joint sensors are connected without the risk of damage to the respective control lines or sensor lines during movement of the
• the structural part, in which the control device is arranged has a structurally formed one
• Cooling device for cooling the control device may in particular be designed to allow air to flow into the structural part for cooling the control device.
• the cooling device is designed such that the air for cooling the control device during a movement of the robot assembly, in particular of both sides via a corresponding joint with a respectively adjacent structural part connected structural part, in which the control device is arranged, in the
• Structural part flows and / or is passed to the control device.
• the control device can be cooled automatically.
• the cooling device can have ventilation slots through which air automatically flows into the structural part when the structural part moves.
• the outer wall of the structural part has at least one
• Ventilation slot on, preferably a plurality of ventilation slots, in particular on opposite or opposite areas of the outer wall. Is the control device approximately in the rocker of the robot assembly
• the cooling device can be formed by a casing of the rocker with the corresponding ventilation slots.
• Control device can be cooled with each movement of the rocker, possibly in addition to other cooling mechanisms.
• control device designed in shell construction.
• At least this structural part has a skeletal structure, on or on the at least a part of components of the two joints which connect the structural part to an adjacent one of the structural parts
• Control device the control lines, at least a part of components of the two joints associated joint sensors, the sensor lines and / or the like are mounted.
• This skeletal structure is preferably covered by a formwork releasably attached to the skeletal structure (as a preferred form of outer wall) which may optionally have ventilation slots for cooling the control device.
• a formwork releasably attached to the skeletal structure (as a preferred form of outer wall) which may optionally have ventilation slots for cooling the control device.
• the casing can be removed so easily, whereby the assembly and / or maintenance of the control device can be performed quickly.
• Control device to be attached to a shell or on the skeletal structure.
• the control device at least one Have switching element which is designed to cooperate with a complementary switching element to influence the behavior of the control device.
• control device can thereby be configured in a simple manner by changing the shells. It is understood that the control device can also be attached to a shell and the complementary switching elements are attached to the skeletal structure. As a result, the control device can advantageously be automatically configured in the event of a change in accordance with the boundary conditions caused by the skeletal structure or the robot.
• control device in addition to the control device
• At least one further electronic component in particular a further integrated circuit, is arranged.
• the at least one further electronic component is preferably connected to the control device.
• control device can be extended by means of the at least one further electronic component, for example with respect to its functionality.
• the controller formed as a board may be mounted in an area along one side of the skeletal structure of the structural part, wherein on an opposite side further electronic components are mounted.
• the controller formed as a board may be mounted in an area along one side of the skeletal structure of the structural part, wherein on an opposite side further electronic components are mounted.
• Control device may be mounted in an area around the skeletal structure, wherein further electronic components are mounted in other areas along the skeletal structure.
• additional sensor technology for example for providing a so-called "tactile skin”
• Construction space is required.
• Fig. 1 shows a robot assembly according to an embodiment of the present invention
• Fig. 3 is designed as a rocker structural part, in which a
• FIG. 1 shows a robot assembly 1 according to an embodiment of the present invention in a side view.
• the robot assembly 1 has a plurality of supporting structural parts 10, wherein each two adjacent structural parts 10 at least one joint 20 are movably connected to each other.
• the load-bearing structural parts 10 form in particular rigid connections between the joints 20.
• Joints 20, which enable a movement of the structural parts 10 connected to them about a robot axis A2, A3, A5 perpendicular to the image plane, are represented by a circle.
• Joints 20, which enable movement of the structural parts 10 connected to them about a robot axis A1, A4, A6 lying in the image plane are represented by hatching.
• the supporting structural parts 10 can be designed, in particular, as a base 11, rocker 12, robot arm 13 and carousel 15.
• the robot arm 13 carries a robot hand 14 with a plurality of links 14a-c, which can be connected to a tool 30.
• the joints 20 associated joint motors see Fig. 2
• the structural parts 10 can be moved independently and thus the tool 30 are moved to a desired orientation or position.
• each of the joints 20 enables the movement of a structural part 10 relative to an adjacent structural part 10 about a robot axis A1 - A6 defined by the joint 20.
• At least three of the joint motors are advantageous
• Control device 40 is controlled. To the thereby of the
• Control device 40 to forward generated control signals to the articulated motors, control lines (see Figure 2) are provided, which extend through the structural parts 10 and connect the control device 40 with the respective joint motor.
• the central control device 40 is preferably one of the
• Structural parts 10 carried on both sides by a hinge 20 with a
• control device 40 is arranged in the rocker 12, which is connected by a joint 20 with the carousel 15 and via another joint 20 with the robot arm 13. Over or through the joint 20 on the second robot axis A2, therefore, only the control line between the control device 40 and the one must
• Joint motor which is assigned to the joint 20 with the first robot axis A1, are guided.
• the joint 20 with the second robot axis A1 are guided.
• Robot axis A2 in addition also the control line between the
• Joint motor is arranged in or on the carousel 15.
• the control lines between the control device 40 and the further articulated motors which are assigned to the joints 20 with the third to sixth robot axes A3-A6, do not run via the joint 20 on the second robot axis A2.
• the control lines between the control device 40 and the further articulated motors which are assigned to the joints 20 with the third to sixth robot axes A3-A6, do not run via the joint 20 on the second robot axis A2.
• the joints 20 with the first and second robot axes A1, A2, which are also referred to as basic axes can therefore be designed to be slim and compact, as a result of which the interference contour of the robot arrangement 1 is reduced.
• the conventional arrangement not shown
• FIG. 2 shows four structural parts 10 of a robot arrangement 1 connected to a chain by means of three joints 20 with one in one of these structural parts 10
• Each of the joint motors 21 is to
• Each of the articulated motors 21 is preferably on one of the two
• Structural parts 10 are arranged, which are connected via the joint 20, which is associated with the articulated motor 21.
• each of the articulated motors 21 is arranged on an end of one of the two structural parts 10 facing the connecting joint 20.
• at least one of the articulated motors may also be part of the corresponding articulation 20 actuated by the motor driven by the joint motor and arranged in the joint 20 or integrated into the joint 20 (not shown).
• joint motors 21 associated with a joint 20 are each at the end of the joint 20 facing that particular
• Structural parts 10 are arranged, which are connected by means of the relevant joint 20 with an adjacent structural part 10.
• the controller 40 is connected to each of the articulated motors 21 via a respective dedicated control line 22. To connect the
• Control device 40 also allow articulated motors 21 which are not arranged in or on the structural part 10, in or on which also the
• Control device 40 is arranged, the control lines 22nd
• control lines 22 can also be guided by a joint passage 22b extending through the respective joint 20.
• control device 40 Since the control device 40 is arranged in a structural part 10, which is connected on both sides via a respective joint 20 with an adjacent structural part 10, i. which does not form an end of the chain, the number of control lines 22 guided via loops 22a or through articulated passages 22b, in particular in the region of the two joints 20 which adjoin the structural part 10 in which the control device 40 is disposed, can be adjacent
• control line 22 in each case must be guided around or through the two joints 20 which connect the structural part 10, in which the control device 40 is arranged, to the two adjacent structural parts 10. If the control device 40 were arranged in a structural part 10 which forms one end of the chain, at least two control lines 22 would have to be guided via or through the joint 20 which connects this structural part 10 to an adjacent structural part 10.
• the hinges 20 are each associated with a joint sensor 23, wherein each of the joint sensors of FIG. 23 is connected to the sensor via a dedicated sensor line 24
• Control device 40 is connected. For reasons of clarity, only one of the sensor lines 24 is shown.
• Each of the joint sensors 23 is set up to detect a state of the respective joint 20, for example a rotation angle of the joint or a moment acting on the joint 20, and output corresponding sensor signals to the control device 40 via the respective sensor line 24.
• the control device 40 can perform a situation-adapted control of the
• the sensor lines 24 are preferably analogous to, in particular
• FIG. 3 shows a structural part 10 designed as a rocker 12, in which a control device 40 for controlling jointed motors (see FIG. 2) is arranged.
• the articulated motors are associated with joints 20 and arranged to drive movements of the rocker relative to adjacent ones
• the rocker 12 is executed in the example shown in shell construction, that is, it has a, for example, formed from a metal support, skeletal structure 17 which connected by a releasably connected to the skeletal structure 17 Shutter 18 is hidden. Below the casing 18, for example on the skeletal structure 17, the control device 40 is mounted.
• the casing 18 can be easily removed, so that the control device 40 is accessible.
• a cooling device 50 for cooling the casing 18 is a cooling device 50 for cooling the casing 18
• Control device 40 integrated in the form of ventilation slots.
• Ventilation slots are embedded in a control device 40 opposite side of the casing 18, so that upon movement of the rocker 12 air can flow through the ventilation slots and remove heat generated by the controller 40.
• heat generated by the control device 40 can also be transported away via the skeletal structure 17, which is used for this purpose
• Jointed motors are not arranged in the rocker 12, but in the adjacent other structural parts, which are connected via the joints 20 with the rocker 12, as so accumulates the heat generated by the controller 40 and the heat generated by the joint motors or the Heat generated by the control device 40 can not be registered in the articulated motors, or vice versa.
• control device 40 in the rocker 12 is also advantageous because there is enough space under the casing 18, in the other electronic components (not shown), for example, additional sensors, next to the controller 40 can be arranged and connected to this ,
• exemplary embodiments are merely examples that the Protection area, which should in no way limit applications and construction. Rather, the expert is given by the preceding description, a guide for the implementation of at least one exemplary embodiment, with various changes, in particular with regard to the function and arrangement of the components described, can be made without departing from the scope, as it turns out according to the claims and these equivalent combinations of features.

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• Engineering & Computer Science (AREA)
• Automation & Control Theory (AREA)
• Robotics (AREA)
• Mechanical Engineering (AREA)
• Physics & Mathematics (AREA)
• Artificial Intelligence (AREA)
• Evolutionary Computation (AREA)
• Fuzzy Systems (AREA)
• Mathematical Physics (AREA)
• Software Systems (AREA)
• Manipulator (AREA)

Applications Claiming Priority (2)

Publications (1)

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• 2018
  • 2018-04-19 DE DE102018206009.6A patent/DE102018206009A1/de active Pending
• 2019
  • 2019-04-16 CN CN201980026702.8A patent/CN112088071B/zh active Active
  • 2019-04-16 WO PCT/EP2019/059746 patent/WO2019201891A1/de active Application Filing
  • 2019-04-16 US US17/048,813 patent/US20210146529A1/en active Pending
  • 2019-04-16 EP EP19718337.9A patent/EP3781365A1/de active Pending

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