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US 6,646,220 B2Granted
Device and method of guiding a processing electrode in a machine tool
AssigneeAgie SA
InventorsKarl Tobler, Peter Wehrli
Life of this patent
Estimating the term…
Abstract
Devices and methods for threading a wire electrode in a wire erosion machine are disclosed. A feed-through channel is provided for producing a fluid jet within which the machining electrode is guided. One or more control devices are provided for varying the cross section of the feed-through channel and, thus, the cross section of the fluid jet.
Claims20
A device for threading a machine electrode in a wire erosion machine comprising:
- a feed-through channel for producing a fluid jet within which the machining electrode is guided, the feed-through channel having a cross-section;
- and
- a control device for varying the cross section of the feed-through channel and, thus, the cross section of the fluid jet.
A device for guiding a machining electrode in a machine tool comprising:
- a feed-through channel for producing a fluid jet within which the machining electrode is guided, the feed-through channel having a cross-section;
- a control device for varying the cross section of the feed-through channel and, thus, the cross section of the fluid jet;
- an additional channel located in at least one of:
- (a) adjacent the feed-through channel and (b) on an end face of the control device, the additional channel having a smaller cross section than the feed-through channel and the additional channel remaining substantially open when the control device is closed;
- and
- wherein the additional channel has a cross-sectional shape which varies steadily from an entrance to an outlet of the additional channel.
3 more elements
A device for guiding a machining electrode in a machine tool comprising:
- a feed-through channel for producing a fluid jet within which the machining electrode is guided, the feed-through channel having a cross-section;
- and
- a control device for varying the cross section of the feed-through channel and, thus, the cross section of the fluid jet;
- and
- further comprising a rinsing nozzle having a nozzle opening and wherein the control device comprises a displaceable slide element which can be selectively inserted into the nozzle opening of the rinsing nozzle.
2 more elements
A device for guiding a machining electrode in a machine tool comprising:
- a feed-through channel for producing a fluid jet within which the machining electrode is guided, the feed-through channel having a cross-section;
- a control device for varying the cross section of the feed-through channel and, thus, the cross section of the fluid jet;
- and
- wherein the control device comprises a wire cutter which is movable in a transverse direction relative to the feed-through channel.
1 more element
A device for guiding a machining electrode in a machine tool comprising:
- a feed-through channel for producing a fluid jet within which the machining electrode is guided, the feed-through channel having a cross-section;
- a control device for varying the cross section of the feed-through channel and, thus, the cross section of the fluid jet;
- and
- wherein the control device comprises at least two parts that are movable toward one another.
1 more element
A device for guiding a machining electrode in a machine tool comprising:
- a feed-through channel for producing a fluid jet within which the machining electrode is guided, the feed-through channel having a cross-section;
- and
- a control device for varying the cross section of the feed-through channel and, thus, the cross section of the fluid jet;
- wherein the control device comprises an actuator which is controllable by a controller of the machine tool.
1 more element
A device for guiding a machining electrode in a machine tool comprising:
- a feed-through channel for producing a fluid jet within which the machining electrode is guided, the feed-through channel having a cross-section;
- and
- a control device for varying the cross section of the feed-through channel and, thus, the cross section of the fluid jet, the control device having at least one rigid control element which can be moved into the feed-through channel to vary the cross section;
- and
- further comprising a spring which biases the control element toward a resting position.
2 more elements
A device for guiding a machining electrode in a machine tool comprising:
- a feed-through channel for producing a fluid jet within which the machining electrode is guided, the feed-through channel having a cross-section;
- and
- a control device for varying the cross section of the feed-through channel and, thus, the cross section of the fluid jet;
- and
- wherein the control device is in communication with a controller of the machine tool, and the controller controls the control device to automatically change the cross section of the fluid jet as a function of at least one of a kind of machining electrode and conditions on the work piece.
2 more elements
A device for guiding a machining electrode in a machine tool comprising:
- a feed-through channel for producing a fluid jet within which the machining electrode is guided, the feed-through channel having a cross-section;
- and
- a control device for varying the cross section of the feed-through channel and, thus, the cross section of the fluid jet;
- wherein the control device comprises closing means for selectively partially closing the feed-through channel for adjusting the cross section, and
- wherein the device has a threading mode where the closing means at least partially closes the feed-through channel and a rinsing mode where the closing means does not close the feed-through channel.
2 more elements
A method of automatically threading a machining electrode in a machine tool comprising:
- (a) moving a control device to change a cross-section of a channel based on at least one of:
- (i) a kind of machine electrode to be threaded, (ii) a size of machine electrode to be threaded, (iii) a size of a starting bore in a workpiece, (iv) a size of a working gap in a workpiece, and (v) a dimension of a workpiece;
- and
- (b) supplying a fluid jet through the channel to thread the machine electrode.
1 more element
Dependencies are inferred from the claim text.