Abstract:
A device and a method for controlling the thickness of a metallic coating on an elongated metallic element (1) formed by continuously transporting the element through a bath (2) of molten metal comprises at least one pair of electromagnetic wiper members (7a, 7b, 8a, 8b) and, associated therewith, a second wiper member (11) designed to apply to the element (1) a jet of gas with a target area essentially according to a line transversely of the element with respect to the direction of the transport path in order to assist the electromagnetic wiper member in the wiping of superfluous molten metal from the element .
Abstract:
The invention relates to an industrial robot comprising a contact panel (4) having one or several contacts (5a-5f) to allow the connection to the industrial robot of one or several cables through which energy, signals or a substance may pass to and/or from the industrial robot. The industrial robot also comprises a cover (11) forming part of the outer surface (10) of the industrial robot, each one of said one or several contacts (5a-5f) of the contact panel (4) protruding through an opening (12) in the cover (11) so as to be accessible from the outside of the industrial robot. The contact panel (4) is mounted to and supported by a holder that is secured in an internal cavity of the industrial robot so as to allow the contact panel (4) to be held in place in the industrial robot when the cover (11) is removed.
Abstract:
An industrial robot exhibits, for rotation about its first axis (3) as well as rotation about its second axis, a drive package with a motor and a gear (11, 12) between the output shaft of the motor and the first and second axes, respec tively. The respective gear is a multistage gear transmis sion with parallel gear wheel axes and one of the gear wheels of the gear is secured with respect to the first and second axes, respectively. The gear for the second axis is arranged above the gear of the first axis and, viewed from above in the direction of the first axis, is partly covering the gear of the first axis.
Abstract:
An industrial robot system including: at least one industrial robot (1) comprising a manipulator (2) and a control unit (3) for controlling the manipulator, a portable operator control device (4), called hereafter a TPU, for teaching and manually operating a robot, which TPU comprises safety equipment including an enabling device, which upon activation enables manual operation of the robot by means of the TPU, and the TPU is adapted for wireless communication with the control unit, and a detecting unit, detecting when the TPU enters an area (7) defined in the vicinity of the manipulator, wherein the robot comprises an enabling function which upon activation enables the enabling device of the TPU, and upon deactivation disables the enabling device. The robot system is adapted to automatically activate the enabling function of the robot upon detecting that the TPU enters the defined area (7).
Abstract:
A device and a method for stabilizing an elongated metallic strip of a magnetic material when coating the strip (1) with a metallic layer. The strip is transported from the bath (2) in a direction of transport (16) along a predetermined transport path (x). A wiping device (4) for wiping off superfluous molten metal from the strip (1) applies an air flow in a line across the strip (1), where the wiping device (4) comprises at least one pair of air-knives (5, 6) arranged with one air-knife on each side of the strip (1). An electromagnetic stabilizing device (7) stabilizes the position of the strip (1) with respect to the predetermined transport path (x). A sensor (14, 15) detects the position of the strip (1) in relation to the predetermined transport path (x).
Abstract:
The present invention relates to an industrial robot comprising: a platform (16) arranged for carrying the object, a first arm (7) arranged for influencing the platform in a first movement and comprising a first actuator having a first path (1) and a first carriage (4) linearly movable along the first path, a second arm (8) arranged for influencing the platform in a second movement, comprising a second actuator having a second path (2) and a second carriage (5) linearly movable along the first path, a third arm arranged for influencing the platform in a third movement, and a control unit controlling the movements of the platform. The first and second arm are arranged rotatable in such way that the platform is movable between opposite sides of a second plane (D) passing through and continuously following the first and second carriage The control unit comprises control means adapted to upon command perform a reconfiguration of the platform and the arms of the robot, wherein the reconfiguration comprises moving the platform between opposite sides of the second plane.
Abstract:
An industrial robot controller comprising a DC/DC converter, computer means including memory means for execution of a computer program and for storing parameter values and an uninterruptible power supply for providing power to the computer means during a main power failure.
Abstract:
The invention refers to method for fault detection in a power transformer/autotransformer and/or interconnected power lines, which are within the zone protected by the differential protection, and particularly suitable for detecting turn-to-turn faults in power transformer/autotransformer windings. The method according to the invention is achieved by measuring all individual instantaneous phase currents of the protected object, calculating individual phase currents as fundamental frequency phasors, calculating the contributions of the individual protected object sides negative sequence currents to the total negative sequence differential current by compensating for the phase shift of an eventual power transformer within the protected zone, comparing the relative positions of the compensated individual sides negative sequence currents in the complex plane, in order to determine whether the source of the negative sequence currents, i.e. the fault position, is within the protected zone or outside of the protected zone, delimited with current transformer locations, disconnecting the protected object if determined that the source of the negative sequence currents is within the protected zone.
Abstract:
The invention refers to a method for optimizing measurement and control of the flatness of a strip of rolled material. The invention is achieved by accomplish a mapping by associating to relevant flatness fault types a reference strip model and an actuator space conversion matrix. The invention also refers to a device for optimizing measurement and control of the flatness of a strip of rolled material.
Abstract:
The present invention relates to a method for non-contact measurement of a dimension and/or an electrical property in an electrically conducting object to be measured by using electromagnetic induction, and in which method an electromagnetic field is brought to penetrate through the object to be measured. The invention is achieved by the following method steps: - placing a transmitter coil on one side of the object to be measured, - placing a receiver coil on the other side of the object to be measured, - generating a magnetic field in the transmitter coil, - generating a sudden change of the magnetic field generated in the transmitter coil from one level to another, - detecting the voltage induced in the receiver coil, - determining the period of time that elapses from the time T2 of the change of the magnetic field in the transmitter coil up to the time Ta when a voltage starts to be induced in the receiver coil, - determining the magnitude of the induced voltage, and calculating the thickness and/or electrical conductivity of the object to be measured.