Abstract:
The present invention relates to a control system for controlling an industrial robot comprising a motion control part (3), wherein the motion control part is configured to operate the robot in accordance with a control program and a set of motion control parameters. The control system comprises a data storage (10) for storing a plurality of optional sets of motion control parameters adapted for different types of applications, and the control systern is configured to receive information on a selected type of application, and the motion control part is configured to operate the robot in accordance with the set of motion control parameters belonging to the selected type of application.
Abstract:
A control system for controlling at least one industrial robot, wherein the control system comprises a plurality of software modules (41-47) for handling various system functions of the control system, and a plurality of separate hardware units (50-53), each comprising a processing unit (30a-d) and a memory unit (26a-d) for storing one or more of said software modules, and each of the hardware units is configured to receive and execute one or more of the software modules. At least some of the software modules are arranged scalable with regard to the performance of the system functions dependent on the capacity of the hardware unit running the software module, and the control system comprises a resource-distributing unit (55) having knowledge of the capacity of the hardware units, the scalability of the software modules, and the demand on hardware capacity of the software modules,and the resource- distributing unit is configured to plan how to distribute said software modules among said hardware units in order to optimized the performance of the system functions.
Abstract:
A drive unit for at least one electric motor, the drive unit comprising: a power source (1 ) producing direct current to the motor, an energy storage (C1 ) arranged at the output of the power source for storing energy recovered during braking of the motor, a discharge circuit for discharging the energy stored in said energy storage if the voltage across the energy storage becomes too high, wherein the discharge circuit includes a resistor (R) adapted to discharge the energy stored in the energy storage. The drive unit is adapted, during start-up of the drive unit, to lead an inrush current through said resistor and during normal operation to discharge the energy storage by means of said resistor when the voltage across the energy storage becomes too high.
Abstract:
The present invention relates to an industrial robot system comprising a workcell including a load area and a process area, a detector (6) detecting when a human enters the load area, a manipulator located in the workcell, at least one positioner adapted to hold a workpiece and to change the orientation of the workpiece about at least one axis while the manipulator processes the workpiece, and a station exchanger movable about an axis and adapted to move, upon command, the manipulator or the positioner between the load and process area. Each of the axes is provided with a motor (M1-M3) and a drive unit (53-55). An axis controller (50) is adapted to switch between executing a first task in which the axes of the positioner and the station exchanger are commanded to a standstill, and a second task in which the axes of the positioner and the station exchanger are allowed to move. A safety controller (58) is adapted to supervise, upon detecting that a human is entering the load area, whether any of the station exchanger or the positioner is moving, and to generate a signal which disables the drive unit of the moving axis if it is detected that any of the supervised axes is moving.
Abstract:
A control system for controlling at least one industrial robot having a plurality of motors, the control system comprising: a current control unit (1) adapted to calculate control signals for the currents of said plurality of motors based on current feedback signals and instructions from a main computer, a drive arrangement (2;30-32;45-48) adapted to control the motors by generating variable alternating currents for the motors in dependence on said control signals from the current control unit, and an interface between the current control unit and the drive arrangement adapted to transfer said control signals from the current control unit to the drive arrangement and to transfer current feedback signals from the drive arrangement to the current control unit. The interface comprises a high-speed serial communication link (3). ( F i g. 3)
Abstract:
The invention relates to a spot weld gun (1) comprising a base unit (2) arranged to be attached to a tool holder (), a movable gun unit (4) with a first (5) and a second electrode carrying arm (6). The spot weld gun further comprising an equalizing means (25) for balancing the movable gun unit (4) in relation to the fixed base unit (2) during welding operations. The base unit (2) comprises linear guide means (12, 13). The equalizing means (25) is arranged connecting the base unit (2) and the gun unit (4). The first (5) and the second electrode carrying arm (6) are sliding along the linear guide means (12, 13) during balancingof the movable gun unit (4).
Abstract:
Un dispositivo de robot industrial, incluyendo un montaje giratorio (7) con medios de montaje para el montaje de una herramienta, definiendo el dispositivo un eje (0) caracterizado porque los medios de montaje incluyen al menos dos dispositivos de montaje diferentes para dos tipos diferentes de herramientas, incluyendo un primero (8, 9) de dichos dispositivos de montaje medios de colocación (9) que definen una cierta posición angular de una herramienta montada (20) con relación al eje (0) y estando dispuesto un segundo (10) de dichos dispositivos de montaje para permitir una posición angular arbitraria de una herramienta montada (30) con relación al eje (0).