A controller of the robot apparatus performs approaching control for making a second workpiece approach a first workpiece and position adjustment control for adjusting a position of the second workpiece with respect to a position of the first workpiece. The approaching control includes control for calculating a movement direction and a movement amount of a position of the robot based on an image captured by a first camera, and making the second workpiece approach the first workpiece. The position adjustment control includes control for calculating a movement direction and a movement amount of a position of the robot based on an image captured by the first camera and an image captured by the second camera, and precisely adjusting a position of the first workpiece with respect to the second workpiece.

A robot control system includes a relative relationship calculating section configured to calculate a relative relationship between a first member and a second member at least at one of a plurality of points based on data acquired by a vision sensor, a contact point determination section configured to determine a contact point between the first member and the second member based on the calculated relative relationship, a control point setting section configured to set a control point based on the determined contact point, and a fitting control section configured to control fitting of the plurality of points based on the set control point.

Embodiments of the present disclosure provide a robot arm apparatus including a fastener for fastening a first electronic component to a second electronic component, and a movable part configured to move the fastener. The fastener includes an arm connected to the movable part, a head connected to the arm and configured to contact the first electronic component, and a lock configured to be in contact with the arm when the first electronic component is moved to a reference space, and to be spaced apart from the arm when the first electronic component is fastened to the second electronic component after the first electronic component is moved to the reference space.

A method for controlling a robot to perform a complex assembly task such as insertion of a component with multiple pins or pegs into a structure with multiple holes. The method uses an impedance controller including multiple reference centers with one set of gain factors. Only translational gain factors are used—one for a spring force and one for a damping force—and no rotational gains. The method computes spring-damping forces from reference center positions and velocities using the gain values, and measures contact force and torque with a sensor coupled between the robot arm and the component being manipulated. The computed spring-damping forces are then summed with the measured contact force and torque, to provide a resultant force and torque at the center of gravity of the component. A new component pose is then computed based on the resultant force and torque using impedance controller calculations.

A method for controlling a robot to perform a complex assembly task such as insertion of a component with multiple pins or pegs into a structure with multiple holes. The method uses an impedance controller including multiple reference centers with one set of gain factors. Only translational gain factors are used—one for a spring force and one for a damping force—and no rotational gains. The method computes spring-damping forces from reference center positions and velocities using the gain values, and measures contact force and torque with a sensor coupled between the robot arm and the component being manipulated. The computed spring-damping forces are then summed with the measured contact force and torque, to provide a resultant force and torque at the center of gravity of the component. A new component pose is then computed based on the resultant force and torque using impedance controller calculations.

A controller of the robot apparatus performs approaching control for making a second workpiece approach a first workpiece and position adjustment control for adjusting a position of the second workpiece with respect to a position of the first workpiece. The approaching control includes control for calculating a movement direction and a movement amount of a position of the robot based on an image captured by a first camera, and making the second workpiece approach the first workpiece. The position adjustment control includes control for calculating a movement direction and a movement amount of a position of the robot based on an image captured by the first camera and an image captured by the second camera, and precisely adjusting a position of the first workpiece with respect to the second workpiece.

A robot control system includes a relative relationship calculating section configured to calculate a relative relationship between a first member and a second member at least at one of a plurality of points based on data acquired by a vision sensor, a contact point determination section configured to determine a contact point between the first member and the second member based on the calculated relative relationship, a control point setting section configured to set a control point based on the determined contact point, and a fitting control section configured to control fitting of the plurality of points based on the set control point.

A component fastening system includes a fastener for fastening a first electronic component to a second electronic component and a movable part configured to move the fastener. The fastener includes an arm, a head, and a lock. The arm is connected to the movable part. The head is connected to the arm and contacts the first electronic component. The lock contacts the arm when the first electronic component is moved to a reference space and is spaced apart from the arm when the first electronic component is fastened to the second electronic component.

A robot includes an arm, and a force detector provided in the arm and detecting a force, wherein at least one of a first object and a second object is moved in a direction in which the first object and the second object are closer to each other by the arm, and, if contact of the first object with a position different from an insertion portion of the second object is determined based on output of the force detector, the first object and the second object are separated.

A method able to easily fit a movable shaft part in the corresponding hole. The method includes grasping the base part by the robot and arranging the base part at vertically upward of the top face of the female component so that the plurality of shaft parts are suspended from the base part, moving the base part downward by the robot, and, if a tip end (106c) of at least one shaft part is not inserted into the hole so as to butt against the top face of the female component when moving the base part vertically downward by the robot, moving each of portions of the base part, from which the shaft parts are suspended, in a horizontal direction.