Abstract: An electroerosion apparatus is disclosed having an upper and a lower tiltable electrode guide assembly, each are independently tiltable about a first and a second tilt axis. Both tilt axes are each associated with tilt drives. Each tilt drive includes a servo motor mounted outside the machining zone and connected to the tiltable electrode guide assemblies.

Abstract: An electro-erosion machine with an essentially cylindrical tank (14) for holding a liquid dielectric and divided longitudinally into at least two sections (18 & 20). The sections slide together and apart along the circumference.

Abstract: The wire electrode advances upstream of the workpiece by a torus shaped wire guide with a position sensor to monitor the position of the wire electrode. Additional open v-grooved wire guides may also be present.

Abstract: A method and an apparatus electro-erosive machining for cutting a workpiece with an electrode in the form of a wire which is guided by at least one guiding head. A mechanism is incorporated for orienting either the workpiece or the electrode or both within a coordinate system, utilizing a sensor that determines the position of the surface of the workpiece within the coordinate system.

Abstract: Apparatus for electro-erosive cutting. A cathode in the form of a wire advances through at least one wire guide, with one guide being upstream and the other, if any, downstream of the workpiece in terms of the direction advanced by the wire. The at least one wire guide is an open, specifically a notched, wire guide, one that does not surround the wire, that is, and has associated with it a closed wire guide, specifically a wire guide in the from of a torus that surrounds the wire.

Abstract: A workpiece (1) is clamped onto a compound rest table (5) and machined by a tool electrode (2) running tensioned between two electrode guides (10, 11). A container (18) holds the working liquid into which a working zone (9) of the workpiece (1) is immersed. The lower electrode guide (1) is supported on the stand (4) of the machine by means of a guidearm (13). The guide-arm (13) crosses the back wall (19) of a container (18) at a right angle in an opening (21a) covered by a sliding closing piece (22) that is parallel to the back wall (19) of the container (18). The guide-arm (13) crosses the closing piece (22) of the container (18) at a right angle in another opening (24) where it is slidable. The closing piece (22) is arranged at the outside of the container (18) on a side (26) of the back wall ( 19) facing the stand (4).

Abstract: A spark erosion machine having a machine table fixed to the machine upright and on which can be arranged a working container for the dielectric fluid by joining a vertically movable, cross-sectionally C-shaped component to an L-shaped component in longitudinal section. The L-shaped component comprises a fixed vertical wall element forming the rear wall of the working container and the machine table plate, which is detachably connected to the fixed wall element through a seal. The machine table plate is fixable in the reference plane of the machine table by means of rapid fastening and centering devices.

Abstract: A spark erosion machine having the machine table fixed to the machine upright and including a working container for the dielectric fluid that is formed of a fixed component and a movable component. The fixed component includes the machine table plate, which is fastened to the machine table and forms a portion of the bottom of the working container, plus a wall element that forms a portion of a wall of the working container. The movable component forms the remainder of the work container. The movable component can be lowered to permit access to the table plate and, when raised, joins with the fixed component to form a sealed container.

Abstract: An apparatus for severing a strip-like or wire-like electrode of a spark erosion machine has a belt conveyor formed by two belts positioned face-to-face and having formed in the belts corresponding cutting openings. Cutting elements and pressure plates engage through said cutting openings and severe the wire guided and conveyed between the belts. During cutting, the wire is held between the two belts and is subsequently conveyed towards a disposal container. The belts, cutting elements and pressure plates are operated synchronously so that the cutting openings are synchronized with the action of the cutting elements and pressure plates.

Abstract: A spark erosion machine having two spaced apart wire electrode guidance heads, which are forcibly coupled with one another in such a way that the guidance heads are always coaxial to one another. The forced coupling takes place by a hydraulic system that includes adjusting cylinders for the guidance heads and associated control cylinders. The piston rods of the adjusting cylinders are coupled to one another. By the use of hydraulic circuits, a displacement of the piston rods of the control cylinders leads to a corresponding displacement of the piston rods of the associated adjusting cylinders, so that the orientation of both wire guidance heads is always the same. As a result of this hydraulic system, there is no need to couple the upper and lower wire guidance heads by a mechanical linkage, so that the working zone between the heads and the lateral area for the workpiece connected thereto can be of a random magnitude.

Abstract: The tool changing mechanism is provided with means for the direct transfer of tools through the working sleeve or spindle. The transfer means preferably have rapid clamping means, which are controlled by the working movement of the spindle or sleeve, so that there is no need for a separate transfer station for the tools from the magazine to the spindle or sleeve, so that much space is saved. The magazine is preferably essentially arranged around the assembly for receiving and guiding the working spindle or sleeve. Preferably, the magazine is substantially located over the projected base surface of the machine working table.

Abstract: To permit machining of workpieces on spark erosion cutting equipment with large angles of inclination, the guidance heads which guide the wire electrode in the cutting zone with respect to the workpiece are pivotably arranged and controlled, by being mounted on individual gimbal suspensions so that it is possible to provide for a controllable slope angle up to large amounts. Individual drive motors control movement about the respective gimbal axes.