Abstract: A robot system and method for conditionally stopping a robot, wherein a maximum stopping time and/or distance are defined by a user or integrator through a user interface as safety limits based on the risk assessment. The method provides the continuous calculation of the time and/or distance, which the robot would need to stop under maximum motor torque and/or brake appliance. The robot is stopped or the speed of the robot is reduced, if the calculated time and/or distance exceeds the maximum limit values set by the user or integrator. The method may also be used to program or generate the trajectories of the robot as not to exceed the speed of the movement under the condition of keeping the set maximum stopping time and/or distance as defined by a use.
Abstract: There is provided a method for programming an industrial robot, where distributors and integrators can present accessories that run successfully at end users. Also the developer can define customized installation screens and program nodes for the end user. There is provided a software platform, where the developer can define customized installation screens and program nodes for the end user thereby extending an existing robot system with customized functionalities by still using the software platform available in the robot system. Hereby a robot developer can define customized installation screens and program nodes for the end user. These can, for example, encapsulate complex new robot programming concepts, or provide friendly hardware configuration interfaces.
Type:
Grant
Filed:
July 7, 2016
Date of Patent:
December 1, 2020
Assignee:
UNIVERSAL ROBOTS A/S
Inventors:
Esben H. Oestergaard, Martin Slota, Robert Wilterdink
Abstract: A method is provided for vibration suppression, which is useful in systems with configuration dependent dynamic parameters. The method is a general and practical solution for obtaining a set of inputs to a dynamic system, which will result in reduced vibrational behavior. A novel discrete time buffer implementation is employed, which yields reduced vibration due to a constant unity sum of applied impulses. The method includes shaping a position input with a continuously updated filter and using numerical differentiation to obtain consistent feedforward derivatives without phase shift.
Abstract: A safety system for an industrial robot, specifically an industrial robot and a method for implementing a safety system via predefined safety functions. To perform such safety functions the robot comprises in a joint connecting two robot arm sections a first position sensor (132) for sensing the angular orientation on an input side of a gear in the joint, and a second position sensor (133) for sensing an angular orientation on an output side of the gear.
Type:
Grant
Filed:
February 26, 2015
Date of Patent:
September 3, 2019
Assignee:
UNIVERSAL ROBOTS A/S
Inventors:
Esben H Oestergaard, Grzegorz Zieba, David Brandt
Abstract: Methods includes calibrating robots without the use of external measurement equipment and copying working programs between un-calibrated robots. Both methods utilize the properties of a closed chain and the relative position of the links in the chain in order to update the kinematic models of the robots.
Type:
Grant
Filed:
January 21, 2016
Date of Patent:
December 5, 2017
Assignee:
Universal Robots A/S
Inventors:
Rune Søe-Knudsen, Esben Hallundbæk Østergaard, Henrik Gordon Petersen
Abstract: The invention pertains to a method of calibrating robots without the use of external measurement equipment. The invention furthermore pertains to a method of copying working programs between un-calibrated robots. Both methods utilize the properties of a closed chain and the relative position of the links in the chain in order to update the kinematic models of the robots.
Type:
Grant
Filed:
September 28, 2012
Date of Patent:
February 2, 2016
Assignee:
UNIVERSAL ROBOTS A/S
Inventors:
Rune Søe-Knudsen, Esben Hallundbæk Østergaard, Henrik Gordon Petersen
Abstract: The invention pertains to a method of calibrating robots without the use of external measurement equipment. The invention furthermore pertains to a method of copying working programs between un-calibrated robots. Both methods utilize the properties of a closed chain and the relative position of the links in the chain in order to update the kinematic models of the robots.