The invention relates to an optoelectronic safety device with a light transmitter (14), a light receiver (30) for receiving received light beams (26) from reflections on at least one object (24) in the monitored region (22), an evaluation unit (32) for evaluating the received signals and for outputting a safety signal as a function of the received signals, the evaluation unit (32) comprising a standard multicore processor which is formed on only one semiconductor substrate and has at least two CPUs (44, 46), the standard multi-core processor (42) not being a dedicated safety module and the evaluation being carried out redundantly on both CPUs (44 and 46) of the computing unit (42), and the evaluation unit (32) having a watchdog controller (50) which monitors the function of the computing unit (42), the watchdog controller (50) being able to cause the evaluation unit (32) to output the safety signal independently of the computing unit (42).

A work device includes a work device body and a contact preventer. The work device body includes a linear motion unit having three degrees of freedom and a rotary unit having three degrees of freedom. An end effector is mounted on an output portion of the rotary unit. The contact preventer separates a working region in which the work device body is installed, from a non-working region outside the working region. The contact preventer includes: an entry allowing portion allowing an object to enter the working region therethrough; and an entry allowing portion entry detection sensor configured to detect entry of an object into the working region through the entry allowing portions.

A work device includes a work device body and a contact preventer. The work device body includes a linear motion unit having three degrees of freedom and a rotary unit having three degrees of freedom. An end effector is mounted on an output portion of the rotary unit. The contact preventer separates a working region in which the work device body is installed, from a non-working region outside the working region. The contact preventer includes: an entry allowing portion allowing an object to enter the working region therethrough; and an entry allowing portion entry detection sensor configured to detect entry of an object into the working region through the entry allowing portions.

The present invention relates to an industrial robot system comprising a platform adapted to be positioned on a floor in a robot cell, an industrial robot positioned on the platform and including an articulated robot arm, a sensor system comprising two sensors, wherein each of the sensors is configured to detect motions within an angle of at least 90° in a horizontal plane, two arms attached to the platform and arranged to move the sensors in relation to the platform independent of the articulated robot arm between an extended position located a distance of a least 0.5 m from the platform and a retracted position. The sensors are arranged to detect motions of an object within at least one safety zone defined in relation to the sensors when the sensors are located in the extended position, and the robot system comprises a safety control unit configured to adjust the speed of the robot if a moving object is detected in the at least one safety zone.

The present invention relates to an industrial robot system comprising a platform adapted to be positioned on a floor in a robot cell, an industrial robot positioned on the platform and including an articulated robot arm, a sensor system comprising two sensors, wherein each of the sensors is configured to detect motions within an angle of at least 90° in a horizontal plane, two arms attached to the platform and arranged to move the sensors in relation to the platform independent of the articulated robot arm between an extended position located a distance of a least 0.5 m from the platform and a retracted position. The sensors are arranged to detect motions of an object within at least one safety zone defined in relation to the sensors when the sensors are located in the extended position, and the robot system comprises a safety control unit configured to adjust the speed of the robot if a moving object is detected in the at least one safety zone.

A robot system comprises an intrusion detector which detects that a person has entered into a monitoring area established around a robot, an installation table which supports the robot, a light emitting device which brightens a surface of the installation table, and a control device which receives a signal outputted by the intrusion detector and controls the light emitting device. The control device causes the light emitting device to emit light when it is detected that the person has entered into the monitoring area.

A robot system comprises an intrusion detector which detects that a person has entered into a monitoring area established around a robot, an installation table which supports the robot, a light emitting device which brightens a surface of the installation table, and a control device which receives a signal outputted by the intrusion detector and controls the light emitting device. The control device causes the light emitting device to emit light when it is detected that the person has entered into the monitoring area.

A purpose is to reduce the risk of an arm section dropping off an ejection section in a robot arm mechanism having a linear motion joint. A robot arm mechanism including a linear extension and retraction joint includes a linear motion joint including an arm section and a mechanism for linearly extending and retracting the arm section; a stepping motor configured to generate power for linearly extending and retracting the arm section; a motor driver configured to drive the stepping motor; an encoder configured to output an encoder pulse every time a drive shaft of the stepping motor rotates by a predetermined angle; and a control section configured to control the driver unit to generate a static torque when a length of the arm section corresponding to a count of the encoder pulse reaches a threshold value set for preventing a drop of the arm section.

A securing device for a rotatably mounted object with at least one receiving unit, which is fixed against rotation on a first component of the object with at least one clamping unit which is fixed against rotation to a second component of the object, which manually or by means of a rotary drive is moveable relative to the first component via a rotatably mounted joint about a rotational and/or swivel axis, and with at least one drive unit through which the clamping unit can be transferred from a release position, in which the first component and the second component are released for rotation relative to each other to a clamping position, in which the clamping unit frictionally and/or non-positively engages in the receiving unit, and the first component and the second component are fixed relative to each other against rotation about the rotary and/or swivel axis.

The invention relates to a robot cell (1) provided for use on machine tools and/or assembly machines. The robot cell (1) includes a handling device, e.g. an industrial robot (2). By means of the robot cell (1), a workpiece (4) to be processed on the machine tool or the assembly machine can be removed from an incoming transport container, pre-processed, orientated, inserted into the machine tool or assembly machine, removed from the machine tool or the assembly machine, measured and placed or stacked in an outgoing transport container. The robot cell (1) can be used on different machine tools or assembly machines. In order to facilitate operation of a robot cell (1) of this kind, the robot cell (1) can be used on the machine tool or the assembly machine without being linked or connected to the machine tool or the assembly machine, the robot cell (1) has an optics device (5), by means of which, in conjunction with reference markings on the machine tool or assembly machine, the robot cell (1) can be positioned in its operating position on the machine tool or the assembly machine, wherein by means of a control apparatus (6) and the handling device connected thereto or the industrial robot (2) connected thereto of the robot cell (1), operating elements on the machine tool or assembly machine can be contacted, operated and controlled.