摘要:
Spark-erosion machining method and machine implementing a machining gap, a process regulator, a numerical control system, a Nominal Trajectory. The latter describes the movement of the tool electrode relative to the part as it ought to proceed if no disturbance were to occur during the machining. Information contained in the Nominal Trajectory is used to define at least two control vectors Vg, Vp which orient, within the coordinate system XYZ, two independent regulation movements. The first, or Gap Vector Vg , defines the direction in which a first regulation movement of the axes of the machine must be performed to maintain the removal of material. The second, or Position Vector Vp , defines the direction in which a second regulation movement of the axes of the machining machine must be performed to correct a tool electrode position error. The respective amplitudes of the regulation movements are calculated in real time by the process regulator.
摘要:
The invention is related to a device for implementing a surface treatment method carried out by applying electrical pulses between a tool-electrode and a part-electrode, separated by an intermediate space or gap filled with a dielectric liquid, comprising a regulating device and at least one ignition voltage source connected to the gap by a discharge circuit, the assembly being arranged with the aim of minimizing the removal of material and of homogenizing the surface treatment.
摘要:
Leiterplatteneinheit, umfassend: eine Leiterplatte (2) mit darauf gelöteten oberflächenmontierbaren Bauelementen (1, 17), auf der Leiterplatte (2) in Wärmeleitungsbereichen angeordnete thermisch belastete oberflächenmontierbare Leistungselemente (1), wobei die Wärmeleitungsbereiche metallische Durchkontaktierungen zur Wärmeleitung aufweisen,eine thermisch leitende und elektrisch isolierende Schicht (3), die zwischen den oberflächenmontierbaren Leistungselementen (1) und einem oder mehreren Kühlkörpern (4) im Bereich der Durchkontaktierungen angeordnet ist, wobei die oberflächenmontierbaren Leistungselemente mit wenigstens einem elastischen Clip (5) über die zwischenliegende Leiterplatte (2) derart gegen den oder die mehreren Kühlkörper (4) angepresst werden, dass die von den oberflächenmontierbaren Leistungselementen (1) erzeugte Wärme über die Durchkontaktierungen zu den Kühlkörpern (4) abgeleitet wird.
摘要:
Cutting device for spark-erosion machine wires in which, after passing through a machining region, the wire-electrode (1) is cut up into sections (20) which are disposed of as waste products into a recovery receptacle (12). The device comprises electrical contacts (14) connected to a voltage/current source (17). The wire is subjected to a dielectric fluid whose flow rate is sufficiently high to generate a turbulent flow regime and cause random lateral movements of the wire which sporadically brushes against the contacts.
摘要:
A spent wire guide (3) in an electric discharge machine is proposed, arranged downstream of the machining zone of the electric discharge machine and upstream of a zone for collecting, recovering and/or further handling a spent wire (2), where the spent wire guide (3) is arranged immediately upstream of two identical and symmetrically arranged driving rollers (1), where the driving rollers (1) are arranged horizontally and in mutual contact relative to each other, so that a contact line perpendicular to the Z-axis and parallel to the Y-axis is built, where the wire guide (3) is enclosing the Z-axis, is arranged vertically and centred above the two driving rollers (1) and where the wire guide (3) comprises a symmetry plane defined by the Z-axis and the contact line of both driving rollers (1). The spent wire guide (3) allows a smooth and constant rectilinear movement of the wire (2). The wire guide (3) will undergo less wear and will not produce excessive abrasion.
摘要:
The invention provides a method of operating a machine tool, e.g., an electrical discharge machine (4), and a machine tool system comprising a machine (4) for machining a workpiece wherein at least one of controlling, monitoring and carrying out of the machining of the workpiece is performed by a plurality of configurable modules (DRIVE; GEN; CONTROL), said modules (DRIVE; GEN; CONTROL) are arranged on the machine (4), and said modules (DRIVE; GEN; CONTROL) are so linked by a data network (6) to a node (5) for at least one of sending data to said node (5) and receiving data from said node (5).
摘要:
The present invention relates to a funnel-piece serving to route the spent wire (20), intended to replace a piece (520) made up of two cylindrical elements (521, 522) 3 mm and 15 mm long respectively, with respective diameters of 2 and 4 mm, and of a whistle-shaped element (523), the latter comprising a pointed nose (524) associated with two cheeks (525) and two concave rounded portions of radius 20 mm, which is installed downstream of and between the two spent-wire drive rollers (39, 40) in wire electrical discharge machines that employ a device for recovering and cutting the spent wire (30) which chops the wire into small segments after it has passed through the machining zone, characterized in that this piece comprises means for accentuating a flow of liquid in the opposite direction to the direction of rotation of the rollers (39, 40) so as to detach the wire when the latter becomes stuck to one or other of the rollers.
摘要:
The invention relates to a support piece for the lower wire guide of a wire electrical discharge machine, intended to replace a one-piece part made of stainless steel (1) made up of three coaxial cylindrical sections, the lst section (14) forming a flange fixed to the casing (13) of the lower head, the second (16) comprising a screw thread (17) supporting the injection nozzle (3), the third (18) comprising a threaded end-piece (12) onto which the securing nut (5) of the wire guide (4) is screwed, characterized in that it comprises means making it possible to electrically isolate the said securing nut of the wire guide (5) from the electrical earth of the installation.