Abb Ab

Abb Schweiz Ag

Abb Research Ltd.

Abb Technology Ag

Torgny Brogårdh

Stig Moberg

Johan Ernlund

Sönke Kock

Jesper Bergsjö

Mats Olov Olsson

Anders Lager

Siim Viilup

Daniel Wäppling

Hans Andersson

Görgen Johansson

Staffan Elfving

Sven Hanssen

Peter Fixell

Mats Myhr

Roland Oesterlein

Hans Skutberg

Åsa Vallin

Mathilda Andreasson

Ivan Lundberg

Mats Isaksson

Magnus Ahlbäck

Dan Rylander

Feng Xialong

Bo Holmgren

Christian H Müller

Andreas Olevik

Mats Olsson

A robot installation includes a first robot and a second robot. The first robot is attached to a fixed position in relation to the second robot such that the second robot lies within a reach of at least one drive arm of the first robot.

Compact robot installation

An arrangement for determining the calibration position of a robot joint where the joint has a moveable joint element and a stationary joint element, where one of the joint elements has a holding structure and the other a force providing protrusion, a robot controller, a motor connected between the robot controller and the moveable joint element and a force receiving element adapted to form a kinematic coupling with the holding structure and the force providing protrusion, where the kinematic coupling has at least two areas of contact between the structure and the force receiving element and one area of contact between the force providing protrusion and the force receiving element, the force receiving element being fastenable to the holding structure for stretching out across a gap between the two robot joint elements for receiving a force from the force providing protrusion.

Determining a calibration position of a robot joint

A parallel kinematics robot includes a base and an end effector movable in relation to the base. A first actuator is attached to the base and connected to the end effector via a first kinematic chain including a first drive arm, a first rod, a first joint between the first drive arm and the first rod, and a second joint between the first rod and the end effector. A second actuator is attached to the base and connected to the end effector via a second kinematic chain including a second drive arm, a second rod, a third joint between the second drive arm and the second rod, and a fourth joint between the second rod and the end effector. A third actuator is attached to the base or to the first drive arm, and connected to the end effector via a third kinematic chain including a first gear wheel and a second gear wheel, the first and second gear wheels being journalled in bearings to the end effector and intermeshing with each other. One element of the third kinematic chain constitutes a kinematic pair with at least one element of the first kinematic chain. A kinematic chain responsible for a translational movement of the end effector is utilized as a support structure for a kinematic chain responsible for a rotational movement of the end effector.

Parallel kinematics robot with rotational degrees of freedom

A parallel kinematics robot has a first drive arm and a second drive arm, the two drive arms being crossed when the robot operates within its normal work area. The drive arms thereby occupy less space in a horizontal direction compared with a situation where the two drive arms point away from each other.

Compact parallel kinematics robot

A method and apparatus for calibration of a robot on a platform and a robot, in relation to an object using a measuring unit mounted on the robot including placing CAD models so that the robot reaches the object, manipulating the CAD models to move the measuring unit to a pose in relation to the platform allowing measurement of a feature on the object, storing the pose, and generating a CAD model of the feature. The real robot is moved to the pose, the real platform is moved where measurements of the feature can be made, 3D measurements of the feature are performed and based thereon generating a second CAD model, performing a best fit between the CAD models, and calculating a 6 degrees of freedom pose difference between the CAD models, and instructing the mobile platform to move to compensate for the pose difference.

Method and apparatus for calibration of a robot positioned on a movable platform

An apparatus, a method and a control system for controlling an industrial robot with at least one axis of rotation and/or translation. The robot includes at least one actuator or motor at each of the axes for driving a movement of an arm of the robot and at least one sensor at each of the rotatable shafts. A dither-signal generator for generation of a periodic signal is used to provide a varying dither signal to a servo of the actuator. Automatic adaption of the dither signal is provided. A computer program for carrying out the method and a graphical user interface.

Control method for a robot

A method for calibration of an industrial robot including a plurality of movable links and a plurality of actuators effecting movement of the links and thereby of the robot. The method includes mounting a measuring tip on or in the vicinity of the robot, moving the robot such that the measuring tip is in contact with a plurality of measuring points on the surface of at least one geometrical structure on or in the vicinity of the robot, reading and storing the positions of the actuators for each measuring point, and estimating a plurality of kinematic parameters for the robot based on a geometrical model of the geometrical structure, a kinematic model of the robot, and the stored positions of the actuators for the measuring points.

System for calibration of an industrial robot and a method thereof

An industrial robot including a parallel kinematic manipulator of an object in space. The manipulator includes a stationary platform, a movable platform for carrying the object, and at least three arms connecting the platforms. Each arm includes a first arm part connected to the stationary platform for manipulating the movable platform.

Industrial robot

An industrial robot for moving an object in space comprising a stationary platform, a movable platform arranged for supporting the object, and a first, a second and a third arm to which the platforms are joined. The first arm comprises a first actuator, a first supporting arm influenced by the first actuator and being rotatable around a first axis, and a first linkage. The second arm comprises a second actuator, a second supporting arm influenced by the second actuator and being rotatable around a second axis, and a second linkage. The third arm comprises a third actuator, a third supporting arm influenced by the third actuator and being rotatable around a third axis, and a third linkage. The first and third axes are arranged in parallel and the second supporting arm is freely journalled around a transverse axis that is substantially arranged at right angles to the second axis.

An industrial robot including a platform arranged for carrying an object. A first arm is arranged for influencing the platform in a first movement and includes a first actuator having a first path and a first carriage linearly movable along the first path. A second arm is arranged for influencing the platform in a second movement, and includes a second actuator having a second path and a second carriage linearly movable along the first path. A third arm is arranged for influencing the platform in a third movement. A control unit controls the movements of the platform. The first and second arms are arranged rotatable in such way that the platform is movable between opposite sides of a second plane passing through and continuously following the first and second carriage. The control unit includes a control adapted to upon command perform a reconfiguration of the platform and the arms of the robot. The reconfiguration includes moving the platform between opposite sides of the second plane.

A method and a system for programming an industrial robot to move relative to defined positions on an object. The system includes a geometrical model of the object, the real object, and an industrial robot. A plurality of measuring points are generated corresponding to different points on the surface of the real object expressed in a coordinate system associated with the robot. The system further includes a calibration module arranged to determine orientation and position of the geometrical model of the object relative to the coordinate system associated with the robot, a calculating module arranged to calculate the deviation between the measuring points and corresponding points on the geometrical model, and an adjusting module arranged to adjust the defined positions based on the calculated deviations.

Method and a system for programming an industrial robot to move relative to defined positions on an object, including generation of a surface scanning program

Method for optimizing the movement performance of an industrial robot for a current movement path with respect to thermal load on the driving system of the robot, wherein the method comprises the following steps: for at least one component in the driving system, the thermal load is calculated for the whole or parts of the movement path if the calculated thermal load is compared with a maximally allowed load for the component; and dependent on said comparison, a course of accelerations and velocities for the current movement path are adjusted.

Method for thermal optimization

An industrial robot for movement of an object in space comprising a stationary platform, a movable platform adapted for supporting the object, and a first, a second and a third arm to which the platforms are joined. The first arm comprises a first actuator, a first supporting arm influenced by the first actuator and rotatable around a first axis, and a first linkage. The second arm comprises a second actuator, a second supporting arm influenced by the second actuator and rotatable around a second axis, and a second linkage. The third arm comprises a third actuator, a third supporting arm influenced by the third actuator and rotatable around a third axis, and a third linkage. The second supporting arm is freely mounted around a cross-beam that is arranged at right angles to the second axis.

An industrial robot for movement of an object in space comprising a platform arranged for carrying the object, a first arm arranged for influencing the platform in a first movement and comprising a first actuator and two links, each of which comprises an outer joint arranged in the platform and an inner joint arranged in the first actuator, a second arm arranged for influencing the platform in a second movement and comprising a second actuator and two links, each of which comprises an outer joint arranged in the platform and an inner joint arranged in the second actuator, and a third arm arranged for influencing the platform in a third movement and comprising a third actuator and a link, which comprises an outer joint arranged in the platform and an inner joint arranged in the third actuator. The first actuator comprises a first motor, a first path arranged in a first plane and a first carriage linearly movable along the first path, whereby the two inner joints are displaceable in parallel, the second actuator comprises a second motor, a second path arranged in a second plane and a second carriage linearly movable along the second path, whereby the two inner joints are displaceable in parallel, and the third actuator comprises a third motor, a third path arranged in a third plane and a third carriage linearly movable along the third path, whereby the inner joint is linearly displaceable.

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Västerås, Sweden

Torgny Brogårdh