DE102005033188A1 - Method for production of hollow cylinder precision metal parts with external teeth useful in vehicle production, e.g. steering wheel spindles production of a rough part by cutting the bar material to the required length - Google Patents
Method for production of hollow cylinder precision metal parts with external teeth useful in vehicle production, e.g. steering wheel spindles production of a rough part by cutting the bar material to the required length Download PDFInfo
- Publication number
- DE102005033188A1 DE102005033188A1 DE200510033188 DE102005033188A DE102005033188A1 DE 102005033188 A1 DE102005033188 A1 DE 102005033188A1 DE 200510033188 DE200510033188 DE 200510033188 DE 102005033188 A DE102005033188 A DE 102005033188A DE 102005033188 A1 DE102005033188 A1 DE 102005033188A1
- Authority
- DE
- Germany
- Prior art keywords
- production
- blank
- cutting
- bar material
- hollow cylinder
- 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.)
- Ceased
Links
- 239000000463 material Substances 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 6
- 239000002184 metal Substances 0.000 title claims abstract description 6
- 238000005520 cutting process Methods 0.000 title claims abstract description 4
- 239000007858 starting material Substances 0.000 claims abstract description 9
- 238000000641 cold extrusion Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 238000003754 machining Methods 0.000 abstract 1
- 238000003825 pressing Methods 0.000 abstract 1
- 238000005336 cracking Methods 0.000 description 5
- 238000005553 drilling Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- QDLZHJXUBZCCAD-UHFFFAOYSA-N [Cr].[Mn] Chemical compound [Cr].[Mn] QDLZHJXUBZCCAD-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/14—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/06—Making machine elements axles or shafts
- B21K1/12—Making machine elements axles or shafts of specially-shaped cross-section
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/76—Making machine elements elements not mentioned in one of the preceding groups
- B21K1/762—Coupling members for conveying mechanical motion, e.g. universal joints
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Herstellen von hohlzylindrischen Präzisionsteilen aus Metall mit einer Außenverzahnung.The The invention relates to a method for producing hollow cylindrical precision parts made of metal with an external toothing.
Für viele Anwendungen des Maschinenbaus, insbesondere in der Kraftfahrzeugtechnik werden hohlzylindrische Präzisionsteile aus Metall mit einer Außenverzahnung benötigt. Die Außenverzahnung dient dabei insbesondere zur Übertragung von Drehmomenten. Ein Beispiel für ein solches Präzisionsteil ist die Lenkspindel einer Kraftfahrzeug-Lenkung.For many Applications of mechanical engineering, especially in automotive engineering become hollow cylindrical precision parts made of metal with an external toothing needed. The external toothing serves in particular for transmission of torques. An example for such a precision part is the steering shaft of a motor vehicle steering.
Es ist bekannt, zur Herstellung solcher Präzisionsteile ein rohrförmiges Rohteil durch Rundkneten zu einem Vorfertigteil kalt umzuformen, wobei das Vorfertigteil gegebenenfalls noch einer Fertigbearbeitung unterzogen wird. Der Vorteil dieses Herstellungsverfahrens besteht vor allem darin, dass durch das Rundkneten ein Vorfertigteil mit einer hohen Genauigkeit erhalten werden kann. Das Rundkneten beansprucht allerdings eine verhältnismäßig lange Bearbeitungszeit, so dass dieses Herstellungsverfahren entsprechend kostenaufwendig ist. Das Kaltfließpressen eines rohrförmigen Rohlings zu einem Vorfertigteil kann zwar die Bearbeitungszeit verringern, die erzielbare Genauigkeit des Vorfertigteils ist jedoch geringer. Dies beruht z. B. darauf, dass Herstellungstoleranzen in der Wandstärke des rohrförmigen Rohteils zu Fehlern in der Koaxialität von Außenfläche und Innenfläche des Vorfertigteils führen.It It is known to produce such precision parts a tubular blank cold-formed into a preformed part by rotary swaging, whereby the prefabricated part optionally still undergoes finishing. Of the The advantage of this manufacturing method is mainly that by the swaging a prefabricated part with a high accuracy can be obtained. However, the swaging claimed a relatively long Processing time, so that this manufacturing process accordingly is expensive. The cold extrusion of a tubular blank to a prefabricated part can indeed reduce the processing time, the achievable accuracy of the precast part is lower. This is based z. B. that manufacturing tolerances in the wall thickness of the tubular blank to errors in coaxiality from the outside surface and palm lead the precast part.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Verfügung zu stellen, mit welchem hohlzylindrische Teile aus Metall kostengünstig und mit hoher Präzision hergestellt werden können.Of the Invention has for its object to provide a method available provide, with which hollow cylindrical parts made of metal cost and with high precision can be produced.
Diese Aufgabe wird erfindungsgemäß gelöst durch ein Verfahren mit den Merkmalen des Patentanspruchs.These The object is achieved by a method having the features of the claim.
Erfindungsgemäß wird als Ausgangsmaterial ein Stangenmaterial verwendet. Aus diesem Stangenmaterial wird ein rohrförmiges Rohteil hergestellt, indem das Stangenmaterial abgelängt wird und an der äußeren Umfangsfläche abgedreht wird. Vorzugsweise wird als Ausgangsmaterial ein Stangenvollmaterial verwendet. In diesem Falle wird das Rohteil im Kern koaxial ausgebohrt. Wird ein rohrförmiges Ausgangsmaterial verwendet, so wird das Innere des Ausgangsmaterials ausgedreht. Auch bei einem Ausbohren eines Stangenvollmaterials kann die Bohrung noch zusätzlich ausgedreht werden.According to the invention as Starting material used a rod material. From this bar material becomes a tubular Blank made by cutting the bar stock and turned off on the outer peripheral surface becomes. Preferably, the starting material is a bar stock material used. In this case, the blank is drilled coaxially in the core. Becomes a tubular Starting material used, so is the interior of the starting material turned out. Even when drilling a rod full material can the hole still in addition be turned off.
Die Verwendung eines Stangenvollmaterials mit anschließendem Ausbohren hat den Vorteil, dass das Stangenvollmaterial im Allgemeinen preisgünstiger ist als ein rohrförmiges Ausgangsmaterial.The Use of a bar stock with subsequent drilling has the advantage that the bar stock material is generally cheaper is as a tubular Starting material.
Ein wesentlicher Vorteil besteht darin, dass das Abdrehen der äußeren Mantelfläche des Rohteils und das Ausbohren und gegebenenfalls Ausdrehen des Rohteils zu einer wesentlichen Verbesserung der Rissfreiheit des Materials führt. Bei der Herstellung von Stangenmaterial ist das Auftreten von Rissbildungen im Wesentlichen auf eine dünne Oberflächenschicht des Materials beschränkt. Bei einem Stangenvollmaterial ist außerdem auch die Mittelachse ein Problembereich in Bezug auf eine mögliche Rissbildung. Durch das Abdrehen der Außenoberfläche und das Ausbohren und gegebenenfalls Ausdrehen des Rohteils werden die für eine Rissbildung problematischen Bereiche des Materials entfernt, so dass ein Rohteil mit äußerst hoher Rissfreiheit erhalten wird. Außerdem wird durch das Abdrehen der Au ßenfläche und das Ausbohren des Kerns ein Rohteil erhalten, bei welchem Außenfläche und Innenbohrung mit hoher Präzision koaxial sind.One The main advantage is that the twisting off the outer surface of the Blank and the drilling and possibly boring of the blank to a substantial improvement of the crack-free material leads. In the production of rod material is the occurrence of cracking essentially on a thin one surface layer of the material. In a full rod material is also the center axis a problem area with respect to possible cracking. By the Twisting the outer surface and The boring and possibly turning out the blank are the for one Cracking problematic areas of the material removed, leaving a blank with extremely high Cracked freedom is obtained. Furthermore is by turning the Au ßenfläche and the boring of the core obtained a blank, in which outer surface and Inner bore with high precision coaxial.
Das Rohteil mit hoher Rissfreiheit und präzise koaxialer Innen- und Außenfläche wird durch Kaltfließpressen in einer oder mehreren aufeinanderfolgenden Stufen zu einem Vorfertigteil umgeformt. Das Kaltfließpressen ist gegenüber dem Rundkneten äußerst wirtschaftlich, da eine erheblich geringere Bearbeitungszeit erforderlich ist. Aufgrund der Präzision des Rohteils wird auch durch das Kaltfließpressen ein Vorfertigteil erhalten, welches eine hohe Präzision aufweist und insbesondere eine präzise Koaxialität von Außenfläche und Innenfläche. Bei dem Kaltfließpressen erhält das Vorfertigteil die gewünschte Form von Außenfläche und Innenfläche. Insbesondere können dabei auch die geforderte Außenverzahnung bzw. mehrere Außenverzahnungen und gegebenenfalls auch Innenverzahnungen hergestellt werden. Die Rissfreiheit des Rohteils bleibt bei dem Kaltfließpressen erhalten, so dass bei der Fertigung der Ausschuss infolge von Rissbildungen stark reduziert wird.The Blank with high crack-free and precise coaxial inner and outer surface is by cold extrusion in one or more successive stages to a prefabricated part reshaped. Cold extrusion is opposite the rotary swaging extremely economical, since a considerably shorter processing time is required. by virtue of the precision of Blank is also by the cold extrusion a prefabricated part which is a high precision and in particular a precise coaxiality of outer surface and Inner surface. In the cold extrusion receives the prefabricated part the desired shape from the outside surface and Inner surface. In particular, you can as well as the required external toothing or more external teeth and optionally also internal gears are produced. The Crack-free of the blank remains in the cold extrusion so that in the production of the committee as a result of cracking is greatly reduced.
Soweit erforderlich kann das Vorfertigteil noch einer weiteren Fertigbearbeitung unterzogen werden, um z. B. feinere Formstrukturen der Oberflächen zu drehen.So far required, the precast part of yet another finishing be subjected to z. B. to finer shape structures of the surfaces rotate.
Im Folgenden wird die Erfindung anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert. Es zeigen:in the The invention will be explained below with reference to an embodiment shown in the drawing embodiment explained in more detail. It demonstrate:
Im dargestellten Ausführungsbeispiel ist die Herstellung einer Lenkspindel aus Stahl für die Lenkung eines Kraftfahrzeugs dargestellt.in the illustrated embodiment is the production of a steel steering shaft for the steering a motor vehicle shown.
Als
Ausgangsmaterial dient ein Stangenvollmaterial z. B. ein Mangan-Chrom-Einsatzstahl.
Das Stangenmaterial wird auf die erforderliche Länge abgelängt. Die äußere Mantelfläche wird
z. B. um etwa 0,2mm abgedreht. Der Kern wird koaxial zur Mantelfläche ausgebohrt
und gegebenenfalls anschließend ausgedreht.
Auf diese Weise wird ein rohrförmiges Rohteil
Das
Rohteil
Das
Teil
Das
Vorfertigteil
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510033188 DE102005033188A1 (en) | 2005-07-13 | 2005-07-13 | Method for production of hollow cylinder precision metal parts with external teeth useful in vehicle production, e.g. steering wheel spindles production of a rough part by cutting the bar material to the required length |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510033188 DE102005033188A1 (en) | 2005-07-13 | 2005-07-13 | Method for production of hollow cylinder precision metal parts with external teeth useful in vehicle production, e.g. steering wheel spindles production of a rough part by cutting the bar material to the required length |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102005033188A1 true DE102005033188A1 (en) | 2007-01-18 |
Family
ID=37563516
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE200510033188 Ceased DE102005033188A1 (en) | 2005-07-13 | 2005-07-13 | Method for production of hollow cylinder precision metal parts with external teeth useful in vehicle production, e.g. steering wheel spindles production of a rough part by cutting the bar material to the required length |
Country Status (1)
Country | Link |
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DE (1) | DE102005033188A1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009029407A1 (en) * | 2009-09-14 | 2011-03-24 | Zf Lenksysteme Gmbh | Method for manufacturing motion transmitting steering component in steering system of vehicle, involves manufacturing steering component out of semi-finished products by machining |
DE102010049106A1 (en) | 2010-10-21 | 2011-06-09 | Daimler Ag | Sliding sleeve blank for producing sliding sleeve for steering spindle shaft in motor vehicle-steering shaft arrangement, has cylindrical shape, and is one cold forming press component, which has preliminary gearing at one section |
CN102145445A (en) * | 2011-04-08 | 2011-08-10 | 常州合泰微特电机有限公司 | Ultraprecise drum-shaped roller and processing method thereof |
CN102303209A (en) * | 2011-02-14 | 2012-01-04 | 黄文才 | Method for manufacturing yarn roller of computer flat knitting machine |
CN105945538A (en) * | 2016-06-30 | 2016-09-21 | 武汉市铁研汽车零件有限公司 | Precisely-forged inner spline worm and production technology thereof |
CN106425345A (en) * | 2016-12-09 | 2017-02-22 | 徐玉炜 | Transmission shaft manufacturing process |
CN106514167A (en) * | 2016-12-22 | 2017-03-22 | 重庆市江津区恩聪机械厂 | Knife rest shaft and machining process thereof |
CN112276497A (en) * | 2020-09-07 | 2021-01-29 | 湖北隐冠轴业有限公司 | Processing technology of high-density tooth intermediate shaft of new energy automobile steering system |
DE102012017525B4 (en) | 2011-09-10 | 2022-04-28 | Volkswagen Aktiengesellschaft | Method for the forming production of a gear wheel with external teeth, as well as a gear wheel with external teeth that can be produced by this method |
CN114670476A (en) * | 2022-03-30 | 2022-06-28 | 晋西工业集团有限责任公司 | Compression molding method for slender tubular composite part |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2021812A1 (en) * | 1970-05-04 | 1971-12-02 | Hans Lindemann | Process for processing rod-shaped material, preferably made of steel, by peeling and peeling machine to carry out the process |
DE19901425C2 (en) * | 1999-01-18 | 2002-12-05 | Umformtechnik Baeuerle Gmbh | Method for producing a tubular rack workpiece, in particular for rack and pinion steering of motor vehicles |
DE69628252T2 (en) * | 1995-09-25 | 2004-05-13 | Teijin Seiki Boston, Inc., Peabody | Stress wave gear, components therefor and their manufacturing processes |
DE102004001141A1 (en) * | 2004-01-07 | 2005-08-04 | Gkn Driveline International Gmbh | Process to manufacture several shaft journals from a single machined piece of metal |
-
2005
- 2005-07-13 DE DE200510033188 patent/DE102005033188A1/en not_active Ceased
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2021812A1 (en) * | 1970-05-04 | 1971-12-02 | Hans Lindemann | Process for processing rod-shaped material, preferably made of steel, by peeling and peeling machine to carry out the process |
DE69628252T2 (en) * | 1995-09-25 | 2004-05-13 | Teijin Seiki Boston, Inc., Peabody | Stress wave gear, components therefor and their manufacturing processes |
DE19901425C2 (en) * | 1999-01-18 | 2002-12-05 | Umformtechnik Baeuerle Gmbh | Method for producing a tubular rack workpiece, in particular for rack and pinion steering of motor vehicles |
DE102004001141A1 (en) * | 2004-01-07 | 2005-08-04 | Gkn Driveline International Gmbh | Process to manufacture several shaft journals from a single machined piece of metal |
Non-Patent Citations (2)
Title |
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JONTSCHEW, B.: Teile in einer Arbeitsstation kom- plett kaltumformen, IN. Maschinenmarkt, Würzburg 105(1999) 49, S. 24-27 * |
SCHMOECKEL, D., GÄRTNER, R.: Integration des Axial-Radial-Umformens in den Herstellungsprozess einer rundgekneteten Getriebewelle. IN: Stahl und Eisen 118(1998) Nr. 2, S. 99-104 * |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009029407A1 (en) * | 2009-09-14 | 2011-03-24 | Zf Lenksysteme Gmbh | Method for manufacturing motion transmitting steering component in steering system of vehicle, involves manufacturing steering component out of semi-finished products by machining |
WO2012052135A2 (en) | 2010-10-21 | 2012-04-26 | Daimler Ag | Sliding sleeve blank and motor vehicle steering spindle assembly having a sliding sleeve made from the blank |
DE102010049106A1 (en) | 2010-10-21 | 2011-06-09 | Daimler Ag | Sliding sleeve blank for producing sliding sleeve for steering spindle shaft in motor vehicle-steering shaft arrangement, has cylindrical shape, and is one cold forming press component, which has preliminary gearing at one section |
US9156489B2 (en) | 2010-10-21 | 2015-10-13 | Daimler Ag | Sliding sleeve blank and motor vehicle steering spindle assembly having a sliding sleeve made from the blank |
CN102303209A (en) * | 2011-02-14 | 2012-01-04 | 黄文才 | Method for manufacturing yarn roller of computer flat knitting machine |
CN102145445B (en) * | 2011-04-08 | 2012-08-29 | 江苏德泰精密机电有限公司 | Ultraprecise drum-shaped roller and processing method thereof |
CN102145445A (en) * | 2011-04-08 | 2011-08-10 | 常州合泰微特电机有限公司 | Ultraprecise drum-shaped roller and processing method thereof |
DE102012017525B4 (en) | 2011-09-10 | 2022-04-28 | Volkswagen Aktiengesellschaft | Method for the forming production of a gear wheel with external teeth, as well as a gear wheel with external teeth that can be produced by this method |
CN105945538A (en) * | 2016-06-30 | 2016-09-21 | 武汉市铁研汽车零件有限公司 | Precisely-forged inner spline worm and production technology thereof |
CN106425345A (en) * | 2016-12-09 | 2017-02-22 | 徐玉炜 | Transmission shaft manufacturing process |
CN106514167A (en) * | 2016-12-22 | 2017-03-22 | 重庆市江津区恩聪机械厂 | Knife rest shaft and machining process thereof |
CN112276497A (en) * | 2020-09-07 | 2021-01-29 | 湖北隐冠轴业有限公司 | Processing technology of high-density tooth intermediate shaft of new energy automobile steering system |
CN114670476A (en) * | 2022-03-30 | 2022-06-28 | 晋西工业集团有限责任公司 | Compression molding method for slender tubular composite part |
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OP8 | Request for examination as to paragraph 44 patent law | ||
8131 | Rejection |