Abstract:
Pueden grabarse diferentes objetos como pueden ser joyas, placas de metal u otro material, consiguiendo en el grabado el efecto producido por el grabado artesanal con buril, en el que el artesano realiza un movimiento -descendente- ascendente del buril en cada inserción realizada en la superficie del cuerpo a grabar, presentando el trazo grabado una trayectoria curvilínea. La máquina grabadora que la invención propone incluye además de los tres ejes (X, Y, Z) o grados de libertad para el movimiento del porta-herramientas, crear dos nuevos ejes complementarios a los ya existentes, ref erenciados como PT (profundidad del trazo) y SV (seguimiento vector), consiguiendo el mismo tipo de grabado que el conseguido artesanalmente con el buril. El eje PT controla el movimiento de penetración de la herramienta para el trazo curvilíneo durante el recorrido del vector que marca la dirección y el sentido del trazo. El eje SV (seguimiento vector) orienta el corte de la herramienta con el ángulo de ataque correcto para efectuar el grabado.
Abstract:
The invention relates to a numeric control engraving machine which can be used to engrave different objects such as gems, plates of metal or another material, so as to produce the effect obtained by means of artisan engraving with a chisel, in which the tradesperson performs a downward/upward movement with the chisel with each insertion made in the surface of the body to be engraved, such that the engraved line has a curvilinear trajectory. In addition to the three axes (X, Y, Z) or degrees of freedom for the movement of the tool holder, the inventive engraving machine also creates two new complementary axes which are denoted as PT (depth of line) and SV (vector tracing), thereby producing the same type of engraving as that obtained by a tradesperson with a chisel. The PT axis controls the penetration movement of the tool for the curvilinear line over the course of the vector that defines the direction and sense of the line. The SV (vector tracing) axis orients the cutting edge of the tool with the correct engraving cutting angle.
Abstract:
A system and method for post-cleaning of electrolyte from a used carbon anode in aluminium production is described. The system comprising a robot with manipulator arm provided with a tool for removal of the electrolyte; a vision system comprising at least one 3D sensor for detection of a 3D shape of a surface of said carbon anode and an analysis system for identifying the electrolyte on said carbon anode from the 3D shape of the surface. A sensor detects tool breakthrough in the electrolyte on said carbon anode and a control system controls the robot manipulator arm and the tool based on information from the vision system and the sensor device for detection of tool breakthrough.
Abstract:
A system for evaluating a parameter of a tool being driven by a three-phase brushless motor includes a rotor angle position estimation subsystem having one or more sensing elements and an electronic angle processor. A control subsystem that controls the speed and/or the torque of the motor includes one or more sensing elements and an electronic control processor. An electronic status processor is configured to receive measurements from the rotor angle position estimation subsystem and the control subsystem and is further configured to generate estimates of a tool parameter status. In an example embodiment the tool is a high-speed drill and the system evaluates parameters such as drill tip location and speed/torque characteristics indicative of runout, transitions between layers in drilling, etc.
Abstract:
A method and apparatus are provided to control of a flotation separation process, including parameters of the flotation process and reagent addition to optimize mineral recovery. The apparatus includes a signal processor or processing module configured at least to receive signalling containing information about at least one acoustic characteristic of a froth layer in a flotation cell or tank of a flotation separation process; and determine a control characteristic related to the flotation separation process based at least partly on the signalling received. The signal processor or processing module may also be configured at least to: provide corresponding signalling containing information to control the flotation separation process based at least partly on the control characteristic determined.
Abstract:
Verfahren zur Steuerung eines Gerätesystems (10) mit einem Werkzeuggerät (12) und einer motorischen Vorschubeinrichtung (25) beim Bearbeiten eines Werkstückes aus einem ersten Material und einem, vom ersten Material verschiedenen, zweiten Material, wobei das Werkstück vom Gerätesystem (10) zunächst in einem ersten Betriebsmodus mit ersten Bearbeitungsparametern bearbeitet wird, die für das erste Material gespeichert sind. Nach Beginn der Bearbeitung des Werkstückes im ersten Betriebsmodus wird ein erster Bearbeitungsfortschritt gemessen und als Referenzwert gespeichert, während der Bearbeitung im ersten Betriebsmodus wird regelmäßig ein aktueller Bearbeitungsfortschritt gemessen und mit einem voreingestellten ersten Grenzwert verglichen.
Abstract:
A method and apparatus are provided to control of a flotation separation process, including parameters of the flotation process and reagent addition to optimize mineral recovery. The apparatus includes a signal processor or processing module configured at least to receive signalling containing information about at least one acoustic characteristic of a froth layer in a flotation cell or tank of a flotation separation process; and determine a control characteristic related to the flotation separation process based at least partly on the signalling received. The signal processor or processing module may also be configured at least to: provide corresponding signalling containing information to control the flotation separation process based at least partly on the control characteristic determined.
Abstract:
The present invention provides a method of drilling a hole in a workpiece in order to control breakthrough of the workpiece comprising the steps of : a) initiating contact between a drill bit of a drill unit and the workpiece; b) operating the drill unit to rotate the drill bit to drill the workpiece; c) during drilling of the workpiece measuring the force, F and torque, T , experienced by the drill bit; d) calculating a variable F', based on the measured force, F , representing the rate of change of F ; e) calculating a variable, T' based on the measured torque, T , representing the rate of change of T ; f ) calculating a variable F' ' representing the rate of change of F '; g) calculating a variable T ' ' representing the rate of change of T "; h) detecting the onset of breakout of the workpiece by use of the variables F ', F ' ', T ' and T ' '; i) thereby controlling the speed of rotation of the drill bit during breakthrough of the workpiece to control the degree of breakout of the drill bit from the workpiece. A drilling system is also disclosed.
Abstract:
When a variation (c) of load current supplied to a grinder is not more than a predetermined threshold value, a depth of cut, by which the grinder cuts into a work (a), is controlled according to the load current, and when a variation (c) of load current exceeds the predetermined threshold value, a speed of grinding of the grinder is controlled according to the load current. Further, in the case where a single robot performs a plurality of operations, a target position in the other operations is corrected by means of a positional correction value which is calculated in one operation.