Provided are a robot system, a robot control device, a control method, and a program which make it possible to more simply teach a robot action. The robot system comprises: a feature point teaching unit which causes a storage unit to store the position of a feature point that has been taught using lead-through; an input accepting unit which accepts the input of an angle value of a tool with respect to a workpiece W; a posture determining unit which determines the posture of the tool on the basis of the angle value of the tool; and a program generating unit which generates a robot program for a robot on the basis of the position of the feature point and the posture.

The invention relates to a robot controller controlling a robot arm, the robot controller is configured to maintain the robot arm in a static posture when only gravity is acting on the robot arm and allow change in posture of the robot arm when an external force different from gravity is applied to the robot arm. The free-drive mode of operation is activatable by a user establishing a free-drive activation signal to the robot controller, which then is configured to: —monitor a value of at least one joint sensor parameter; —compare the value of the joint sensor parameter to a maintain free-drive joint sensor parameter threshold value; —maintain the robot arm in said free-drive mode of operation for a predetermined maintain free-drive period of time, and —leave the free-drive mode of operation if the value of the joint sensor parameter docs not exceed the maintain free-drive joint sensor parameter threshold value within the maintain free-drive period of time.

The invention relates to a robot controller controlling a robot arm, the robot controller is configured to maintain the robot arm in a static posture when only gravity is acting on the robot arm and allow change in posture of the robot arm when an external force different from gravity is applied to the robot arm. The free-drive mode of operation is activatable by a user establishing a free-drive activation signal to the robot controller, which then is configured to: —monitor a value of at least one joint sensor parameter; —compare the value of the joint sensor parameter to a maintain free-drive joint sensor parameter threshold value; —maintain the robot arm in said free-drive mode of operation for a predetermined maintain free-drive period of time, and —leave the free-drive mode of operation if the value of the joint sensor parameter docs not exceed the maintain free-drive joint sensor parameter threshold value within the maintain free-drive period of time.

The invention relates to a robot controller controlling a robot arm, the robot controller is configured to maintain the robot arm in a static posture when only gravity is acting on the robot arm and allow change in posture of the robot arm 5 when an external force different from gravity is applied to the robot arm. The free-drive mode of operation is activatable by a user establishing a free-drive activation signal to the robot controller, which in free-drive mode of operation is configured within at a free-drive safety period to allow a part of said robot arm to be moved within a virtual three-dimensional geometric shape 10 surrounding the part of the robot arm.

The invention relates to a robot controller controlling a robot arm, the robot controller is configured to maintain the robot arm in a static posture when only gravity is acting on the robot arm and allow change in posture of the robot arm when an external force different from gravity is applied to the robot arm. The free-drive mode of operation is activatable by a user establishing a free-drive activation signal to the robot controller, which then is configured to initiate a free-drive mode activation sequence including the steps of: in a predetermined activation sequence period of time monitor a value of at least one joint sensor parameter, and compare this value to a free-drive activation joint sensor parameter threshold value. The robot controller is configured to switch to the free-drive mode of operation if the at least one value does not exceed the free-drive activation joint sensor parameter threshold value within the predetermined activation sequence period of time.

The invention relates to a robot controller controlling a robot arm, the robot controller is configured to maintain the robot arm in a static posture when only gravity is acting on the robot arm and allow change in posture of the robot arm when an external force different from gravity is applied to the robot arm. The free-drive mode of operation is activatable by a user establishing a free-drive activation signal to the robot controller, which then is configured to initiate a free-drive mode activation sequence including the steps of: in a predetermined activation sequence period of time monitor a value of at least one joint sensor parameter, and compare this value to a free-drive activation joint sensor parameter threshold value. The robot controller is configured to switch to the free-drive mode of operation if the at least one value does not exceed the free-drive activation joint sensor parameter threshold value within the predetermined activation sequence period of time.

A method for controlling a robotic device. The method includes providing demonstrations for carrying out a skill by the robot, each demonstration including a robot pose, an acting force as well as an object pose for each point in time of a sequence of points in time, ascertaining an attractor demonstration for each demonstration, training a task-parameterized robot trajectory model for the skill based on the attractor trajectories and controlling the robotic device according to the task-parameterized robot trajectory model.

A system for performing an input on a robotic manipulator, wherein the system includes: a robotic manipulator having a plurality of limbs connected to one another by articulations and having actuators; a sensor unit configured to record an input variable, applied by a user by manually guiding the robotic manipulator, on the robotic manipulator, wherein the input variable is a kinematic variable or a force and/or a moment, and wherein the sensor unit is configured to transmit the input variable; and a computing unit connected to the robotic manipulator and to the sensor unit, the computing unit configured to transform the input variable received from the sensor unit via a predefined input variable mapping, wherein the input variable mapping defines a mathematical mapping of the input variable onto a coordinate of a graphical user interface or onto a setting of a virtual control element.

A method of specifying an input value on a robotic manipulator, wherein the method includes: selecting a particular predefined input device to be emulated, wherein the input device to be emulated is assigned at least one degree of freedom of the robotic manipulator and local limits in the at least one degree of freedom, and a transfer function of a coordinate of the robotic manipulator in the at least one degree of freedom is assigned onto the input value; actuating the robotic manipulator such that at least one part of the robotic manipulator is manually movable in the at least one degree of freedom and within the local limits; recording a respective coordinate in the at least one degree of freedom during or after completion of an input on the robotic manipulator via a sensor unit; and applying the transfer function to assign the respective coordinate to the input value.

This invention relates to force/torque sensor and more particularly to multi-axis force/torque sensor and the methods of use for directly teaching a task to a mechatronic manipulator. The force/torque sensor has a casing, an outer frame forming part of or connected to the casing, an inner frame forming part of or connected to the casing, a compliant member connecting the outer frame to the inner frame, and one or more measurement elements mounted in the casing for measuring compliance of the compliant member when a force or torque is applied between the outer frame and the inner frame.