DE102004019543A1 - Production of a through-opening in a workpiece e.g. injection nozzle comprise placing a tool electrode through the workpiece in the outlet region of the through-opening using a through-opening recognition unit and further processing - Google Patents
Production of a through-opening in a workpiece e.g. injection nozzle comprise placing a tool electrode through the workpiece in the outlet region of the through-opening using a through-opening recognition unit and further processing Download PDFInfo
- Publication number
- DE102004019543A1 DE102004019543A1 DE200410019543 DE102004019543A DE102004019543A1 DE 102004019543 A1 DE102004019543 A1 DE 102004019543A1 DE 200410019543 DE200410019543 DE 200410019543 DE 102004019543 A DE102004019543 A DE 102004019543A DE 102004019543 A1 DE102004019543 A1 DE 102004019543A1
- Authority
- DE
- Germany
- Prior art keywords
- workpiece
- tool electrode
- opening
- electrode
- breakthrough
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H9/00—Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H9/00—Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
- B23H9/14—Making holes
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Herstellen einer Durchgangsbohrung in einem Werkstück nach dem Oberbegriff des Anspruchs 1.The The invention relates to a method for producing a through-hole in a workpiece according to the preamble of claim 1.
Ein derartiges Verfahren ist bereits allgemein bekannt. Damit lassen sich im Großserieneinsatz beispielsweise Löcher in Einspritzdüsen mit relativ hoher Präzision und kleinem Durchmesser herstellen, durch die im Betrieb Kraftstoff bzw. Diesel strömt. Damit immer dieselben Strömungsverhältnisse herrschen, ist es wünschenswert, die Durchgangsbohrungen mit stets derselben Geometrie auszubilden. Insbesondere ist es aus Strömungsgründen auch erwünscht, den Austrittsbereich der Durchgangsbohrung mit einem relativ scharfkantigen Radius vorzusehen, ohne dass dieser mittels aufwändig gestalteter Nacharbeitungsprozesse erzeugt werden muss. Bei dem bekannten Verfahren wird die Elektrode dabei mit einem vorgegebenen Vorschubweg verfahren, so dass unabhängig von etwaigen Bauteiletoleranzen die Elektrode sicher das Bauteil im Bereich der Bohrung durchdringt. Problematisch dabei ist, dass abhängig von der Position des Austrittsbereiches der Durchgangsbohrung zur Endposition der Elektrode unterschiedliche Geometrien im Austrittsbereich der Elektrode am Grund der Bohrung erzeugt werden, da je nach Bauteiltoleranzen nach dem Durchbruch unterschiedliche zusätzliche Bearbeitungszeiten mit entsprechendem Materialabtrag an der Austrittskante erzielt werden. Aus diesem Grund ist es beim Stand der Technik auch üblich, die Durchgangsbohrungen nachträglich einer Nachbearbeitung zu unterziehen, um die Fertigungsstreuungen zu reduzieren.One Such method is already well known. Leave it in mass production, for example holes in injection nozzles with relatively high precision and small diameter, through the fuel in operation or diesel flows. In order to always the same flow conditions rule, it is desirable to design the through holes with always the same geometry. Especially is it for flow reasons too he wishes, the exit area of the through hole with a relatively sharp-edged Provide radius without this by means of elaborate reworking processes must be generated. In the known method, the electrode doing so with a predetermined feed path, so that regardless of any component tolerances the electrode safely the component in Area of the hole penetrates. The problem with this is that depending on the position of the exit area of the through hole to the end position the electrode different geometries in the exit area of the Electrode can be generated at the bottom of the hole, depending on component tolerances after breakthrough different additional processing times achieved with appropriate material removal at the trailing edge become. For this reason, it is also common in the prior art, the Through holes later to undergo post-processing to increase the manufacturing spreads to reduce.
Vorteile der ErfindungAdvantages of invention
Das erfindungsgemäße Verfahren zum Herstellen eines Durchgangsloches in einem Werkstück mit den kennzeichnenden Merkmalen des Anspruchs 1 hat demgegenüber den Vorteil, dass unabhängig von Bauteiletoleranzen des Werkstückes stets dieselbe Geometrie im Austrittsbereich des Durchgangslochs des Werkstücks erzielt wird. Damit können die beim Stand der Technik erforderlichen Nachbearbeitungen entfallen, und es lassen sich ohne zusätzlichen Aufwand Austrittsbereiche mit relativ scharfkantigen Austrittskanten erzeugen. Somit lassen sich mit dem erfindungsgemäßen Verfahren nicht nur strömungstechnisch vorteilhafte Durchgangsbohrungen erzeugen, sondern es können auch die Fertigungskosten durch den Entfall von Nacharbeiten reduziert werden.The inventive method for making a through hole in a workpiece with the Characteristic features of claim 1 has the opposite Advantage that regardless of Component tolerances of the workpiece always the same geometry in the exit area of the through hole of the workpiece is achieved. With that you can the post-processing required in the prior art is eliminated, and it can be done without additional Effort exit areas with relatively sharp-edged exit edges produce. Thus, can not be with the inventive method only fluidic produce advantageous through holes, but it can also Manufacturing costs are reduced by the elimination of rework.
Vorteilhafte Weiterbildungen des erfindungsgemäßen Verfahrens zum Herstellen eines Durchgangsloches in einem Werkstück sind in den Unteransprüchen angegeben.advantageous Further developments of the method for manufacturing according to the invention a through hole in a workpiece are given in the subclaims.
Zeichnungdrawing
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird nachfolgend näher erläutert. Es zeigen:One embodiment The invention is illustrated in the drawing and will be described below explained in more detail. It demonstrate:
Beschreibung des Ausführungsbeispielsdescription of the embodiment
Die
in der
Die
Vorrichtung
Der
Drehratensensor
Am
Elektrodenhalter
Im
Normalbetrieb der Vorrichtung
Zur
Positionierung des Werkstücks
Auf
der der Elektrode
Das
Werkstück
Die
Funktionsweise der oben beschriebenen Vorrichtung
Mittels
des Vorschubantriebes der Elektrode
Selbstverständlich ist
die Vorschubgeschwindigkeit der Elektrode
Erfindungswesentlich
ist, dass der Augenblick des Durchbruches der Elektrode
Selbstverständlich ist
es denkbar, während des
Vorschubs s beispielsweise die Vorschubgeschwindigkeit der Elektrode
Dadurch,
dass nach dem Durchbruch der Elektrode
Ergänzend wird
erwähnt,
dass die Vorrichtung
Weiterhin
ist es denkbar, die Durchbruchserkennungseinrichtung
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410019543 DE102004019543A1 (en) | 2004-04-22 | 2004-04-22 | Production of a through-opening in a workpiece e.g. injection nozzle comprise placing a tool electrode through the workpiece in the outlet region of the through-opening using a through-opening recognition unit and further processing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410019543 DE102004019543A1 (en) | 2004-04-22 | 2004-04-22 | Production of a through-opening in a workpiece e.g. injection nozzle comprise placing a tool electrode through the workpiece in the outlet region of the through-opening using a through-opening recognition unit and further processing |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004019543A1 true DE102004019543A1 (en) | 2005-11-10 |
Family
ID=35140107
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200410019543 Withdrawn DE102004019543A1 (en) | 2004-04-22 | 2004-04-22 | Production of a through-opening in a workpiece e.g. injection nozzle comprise placing a tool electrode through the workpiece in the outlet region of the through-opening using a through-opening recognition unit and further processing |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102004019543A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1840368A3 (en) * | 2006-03-27 | 2009-04-08 | Robert Bosch Gmbh | Injection nozzle with spray ducts and method for inserting ducts |
EP2158994A3 (en) * | 2008-08-29 | 2012-11-21 | General Electric Company | Electro Discharge Machining Apparatus and Method |
EP2468442B1 (en) * | 2010-12-21 | 2017-07-19 | Robert Bosch GmbH | Method for producing boreholes |
CN108340035A (en) * | 2017-01-25 | 2018-07-31 | 北京阿奇夏米尔工业电子有限公司 | Hole depth determines method and calculating control system, electrode machining device |
CN114043018A (en) * | 2021-11-29 | 2022-02-15 | 衡水市铜一电气有限公司 | Electric spark punching equipment and punching processing technology thereof |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3254013A (en) * | 1962-07-27 | 1966-05-31 | Anocut Eng Co | Electrolytic cavity sinking apparatus |
US3849271A (en) * | 1972-08-04 | 1974-11-19 | United Aircraft Corp | Electrochemical drilling |
DE2716344C2 (en) * | 1976-04-15 | 1982-11-18 | Rolls-Royce Ltd., London | Spark erosion machine for the production of through holes |
DE2716343C2 (en) * | 1976-04-15 | 1984-07-26 | Rolls-Royce Ltd., London | Circuit arrangement for switching off an electrical discharge machine |
US4484051A (en) * | 1981-02-13 | 1984-11-20 | Mitsubishi Denki Kabushiki Kaisha | Breakthrough detection means for electric discharge machining apparatus |
-
2004
- 2004-04-22 DE DE200410019543 patent/DE102004019543A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3254013A (en) * | 1962-07-27 | 1966-05-31 | Anocut Eng Co | Electrolytic cavity sinking apparatus |
US3849271A (en) * | 1972-08-04 | 1974-11-19 | United Aircraft Corp | Electrochemical drilling |
DE2716344C2 (en) * | 1976-04-15 | 1982-11-18 | Rolls-Royce Ltd., London | Spark erosion machine for the production of through holes |
DE2716343C2 (en) * | 1976-04-15 | 1984-07-26 | Rolls-Royce Ltd., London | Circuit arrangement for switching off an electrical discharge machine |
US4484051A (en) * | 1981-02-13 | 1984-11-20 | Mitsubishi Denki Kabushiki Kaisha | Breakthrough detection means for electric discharge machining apparatus |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1840368A3 (en) * | 2006-03-27 | 2009-04-08 | Robert Bosch Gmbh | Injection nozzle with spray ducts and method for inserting ducts |
EP2158994A3 (en) * | 2008-08-29 | 2012-11-21 | General Electric Company | Electro Discharge Machining Apparatus and Method |
US9333577B2 (en) | 2008-08-29 | 2016-05-10 | General Electric Company | Electro discharge machining apparatus and method |
EP2468442B1 (en) * | 2010-12-21 | 2017-07-19 | Robert Bosch GmbH | Method for producing boreholes |
CN108340035A (en) * | 2017-01-25 | 2018-07-31 | 北京阿奇夏米尔工业电子有限公司 | Hole depth determines method and calculating control system, electrode machining device |
CN108340035B (en) * | 2017-01-25 | 2021-03-30 | 北京阿奇夏米尔工业电子有限公司 | Hole depth determination method, calculation control system and electrode machining device |
CN114043018A (en) * | 2021-11-29 | 2022-02-15 | 衡水市铜一电气有限公司 | Electric spark punching equipment and punching processing technology thereof |
CN114043018B (en) * | 2021-11-29 | 2024-03-29 | 南京诚光新能源科技有限公司 | Electric spark perforation equipment and perforation processing technology thereof |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8139 | Disposal/non-payment of the annual fee |