EP1697066A1 - Verfahren zur herstellung eines flansches an einer metallronde und getriebeteil - Google Patents
Verfahren zur herstellung eines flansches an einer metallronde und getriebeteilInfo
- Publication number
- EP1697066A1 EP1697066A1 EP04803144A EP04803144A EP1697066A1 EP 1697066 A1 EP1697066 A1 EP 1697066A1 EP 04803144 A EP04803144 A EP 04803144A EP 04803144 A EP04803144 A EP 04803144A EP 1697066 A1 EP1697066 A1 EP 1697066A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- flange
- metal blank
- pressure roller
- blank
- metal
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/14—Spinning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/14—Spinning
- B21D22/18—Spinning using tools guided to produce the required profile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/26—Making other particular articles wheels or the like
Definitions
- the invention relates to a method for producing or forming a flange on a metal blank by means of one or more pressure rollers rotating relative to the sheet blank, and a gear part with such a flange.
- Axial surface of the metal blank is pressed on its outer circumference against the inner circumference of the abutment chuck and held there securely.
- the spinning roller is then moved axially inwards, so that a hub is again formed around a central mandrel or the like in the manner of DE 4400257C1.
- flanges should be formed on the metal roller whose radial ring width is larger than their axial height.
- the flange should also be somewhat thicker than the starting material.
- the method for forming a flange on a metal blank has at least the following steps: a pressure roller is used to form a tapered, in particular conical, structure on the metal blank, which tapered towards the perpendicular to the metal blank, and a flange is formed from the conical shape by means of reworking.
- the method for producing a flange on a metal blank can also include the following steps: by means of at least one rotatable pressure roller, the axial thickness of the metal blank is reduced at least in sections over its radial extent and the material is deformed into a hub-like and / or conical structure, from the hub-like one and / or in particular a conical shape towards the perpendicular bisector, a flange is formed on the metal blank by means of post-processing.
- the axial extent of the flange is less than its radial extent.
- the flange should preferably be axially thicker than the starting workpiece.
- the radial extension of the flange is very particularly preferably more than two, in particular more than three times as large as its axial extension, which is particularly advantageous as an output workpiece in the implementation in front of starter rings with relatively flat flanges made of thin round blanks.
- the blanks with flange attachments which can be easily manufactured from metal blanks in just a few steps, are particularly suitable for the manufacture of engine and transmission parts of all types, which should have a flat flange attachment in the central area, in particular around a central hole passing through the blank.
- the conical structure can be formed in the simplest way in particular by the fact that the angle of attack ( ⁇ ) of the pressure roller relative to the axial surface of the metal disc is greater than 90 °. Particularly good results are achieved if the angle of attack ( ⁇ of the pressure roller relative to the axial surface of the metal blank is greater than 110 ° and less than 170 °, in particular greater than 115 ° and less than 150 °.
- the metal disk is preferably held on its outer circumference by an abutment chuck.
- the metal round blank in the case of very thin round blanks (for starter wreaths, etc.), it is advisable for the metal round blank to be held down, at least in sections, in the outer region by a ring on its side facing the pressure roller.
- "thin" starter rings for engines can be produced particularly well, a ring with an inner flange being produced from a disk-like blank which is only a few mm (less than five mm) thick.
- the blank is for example only 3 mm thick in one
- the resulting inner projection is then formed into a flange (in particular on a press) and the outer edge is shaped in a manner known per se in the manner of a starter ring.
- the flange is preferably formed on the side of the metal blank facing away from the pressure roller.
- the flange is also possible for the flange to be formed on the side of the metal blank facing the pressure roller if the tool has a corresponding recess in the area provided for the flange. It is also conceivable that the flange extends to both axial sides of the metal blank.
- a further advantageous embodiment is characterized in that the flange is pressed into a tool with a contour, in particular a toothing, so that the flange on its side facing the tool is provided with a corresponding contour, in particular a toothing.
- the invention also provides a gear part with a flange, in particular around a central bore, the flange of the gear part being produced by a method according to one of Claims 1 to 21 and being connected in one piece to the rest of the gear part.
- This gear part is preferably designed as a starter ring, which is made from a round blank with less than 7, in particular less than 5, preferably less than 4 mm, the starter ring being thinner in sections than the initial width of the round blank and the starter ring being a flange integrally formed in the pressing process towards an inner through hole which is more than two, in particular more than four times as wide (radial extension) as high (axial extension).
- the flange was made from a separate ring that was placed on a round blank. This can surprisingly be eliminated with the invention.
- a ring gear ring is preferably attached to the outer circumference of the starter ring or molded in one piece.
- the appearance of the starter wreath is basically similar to that of Fig. 4. However, the proportions are different, because the flange is only slightly higher than the starting disc (Fig. 5).
- the invention is described in more detail below using exemplary embodiments with reference to the drawing using exemplary embodiments. It shows:
- FIG 3 shows the metal blank from FIGS. 1 and 2 during a further working step, two different possibilities for realizing this working step being shown schematically;
- Figure 4 shows the metal blank with a non-cutting flange section.
- FIG 5 shows a blank processed by the method according to the invention for producing a starter ring.
- Fig. 1 shows a disc-shaped, circular metal blank 1, which is penetrated by a central bore 2 and which is inserted in the manner of Fig. 5 in a tool that rotates around the axis S during processing.
- the axial thickness of the metal blank 1 is designated with “d” in its initial state, the radius of the central through hole 2 before processing with “rl” and after processing with “r2”, the axial extent of the flange 7 - FIG. 4 - after processing with "a and the radial extension with” b ".
- the metal blank 1 as the starting workpiece is inserted into a tool and held on its outer circumference, preferably by means of an abutment chuck in the manner of DE 44 44 536 Cl.
- Your central bore 2 can be penetrated by a preferably conically shaped central mandrel.
- This structure 4 on the inner circumference of the metal blank protrudes radially outward in a conical shape, since the angle of attack ⁇ on the feed flank 9 of the pressure roller 3 is negative or greater than 90 ° relative to the metal blank surface.
- the angle of attack is preferably between 110 ° and 170 °, in particular between 115 ° and 140 °.
- the conical structure 4 is then subjected to post-processing to form the flange 7 in order to achieve a shape in which the axial height of the flange is less than its radial extension “b”.
- This finishing can be carried out by means of a further pressure roller, which is designed in the manner of a rotatable pressure or positioning roller 5, which is guided radially from the outside inwards, or by means of a further pressure roller 6, which is again guided axially from the outside inwards, specifically in particular in such a way that the shape of a flange is formed from the conical structure directly in the next working step (in particular around a central mandrel).
- the angle of attack of the further rotatable pressure roller 6 is preferably approximately 90 °.
- an axially and / or radially adjustable rotatable hold-down roller (see FIG. 15 in FIG. 5) of the type of the adjusting roller 5 is e.g. on the radially opposite side of the metal blank, which presses the metal blank down at least in sections, so that it does not lift off or protrude from the tool in the area in which the pressure roller 3 is moving.
- post-processing by other means is also conceivable, for example by means of a press or the like, which then alternatively forms the flange from the hub-like structure.
- post-processing in the same setting with a further deforming roller is preferred and simple. It is true that in order to form the flange 7 - in contrast to the generic form of a hub - a further operation is required, namely the reworking of the conical structure.
- a deforming and non-cutting, cold-working pressure forming process to precisely form very flat flanges on metal blanks whose inner diameter is smaller than the starting diameter of the metal blank 1.
- an area 8 remains on the outer circumference of the metal disc 1, which can be subjected to further processing, for example, by profiling according to the type of profile of a pulley or a toothing of a starter ring or the like (not shown).
- a contour e.g. a toothing, be formed (in the first or a further second tool) so that the flange is provided with a corresponding contour (in particular a toothing 10) when pressed or the like.
- FIG. 5 shows a blank 12 processed according to the method according to the invention for producing a starter ring, which was made from a flat metal blank.
- This can be done with the pressure roller 3 or another pressure roller or the hold-down roller (indicated as hold-down roller 15).
- the flange was pressed into the tool 12 on the side opposite the machining with the pressure roller 3 from the conical structure.
- a toothing for example radial toothing
- a toothing in the manner of the toothing 10 would also be formed in the flange (cannot be seen in FIG. 5).
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Forging (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10353750 | 2003-11-17 | ||
DE10358844A DE10358844B4 (de) | 2003-11-17 | 2003-12-16 | Verfahren zur Herstellung eines Flansches an einer Metallronde und Getriebeteil |
PCT/EP2004/012924 WO2005046901A1 (de) | 2003-11-17 | 2004-11-15 | Verfahren zur herstellung eines flansches an einer metallronde und getriebeteil |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1697066A1 true EP1697066A1 (de) | 2006-09-06 |
EP1697066B1 EP1697066B1 (de) | 2008-01-02 |
Family
ID=34593371
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04803144A Not-in-force EP1697066B1 (de) | 2003-11-17 | 2004-11-15 | Verfahren zur herstellung eines flansches an einer blechronde |
Country Status (9)
Country | Link |
---|---|
US (1) | US7797976B2 (de) |
EP (1) | EP1697066B1 (de) |
JP (1) | JP5118852B2 (de) |
KR (1) | KR101151463B1 (de) |
AT (1) | ATE382441T1 (de) |
CA (1) | CA2546338C (de) |
DE (1) | DE502004005869D1 (de) |
ES (1) | ES2299891T3 (de) |
WO (1) | WO2005046901A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107159768A (zh) * | 2017-07-13 | 2017-09-15 | 芜湖西诺普汽车零部件科技有限公司 | 一种螺母板加工工艺及铲旋模具 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1026796C2 (nl) * | 2004-08-06 | 2006-02-07 | Fontijne Grotnes B V | Werkwijze en inrichting voor het door middel van koude vervorming vervaardigen van een velgring. |
DE102005035519A1 (de) * | 2005-07-25 | 2007-02-01 | Wf-Maschinenbau Und Blechformtechnik Gmbh & Co Kg | Verfahren zum Umformen einer Blechronde |
JP5415904B2 (ja) * | 2009-11-04 | 2014-02-12 | 日本スピンドル製造株式会社 | 塑性加工装置 |
DE102010004932A1 (de) | 2010-01-18 | 2011-07-21 | WF-Maschinenbau und Blechformtechnik GmbH & Co. KG, 48324 | Verfahren zur Herstellung eines rotationssymmetrischen Getriebeteiles sowie Getriebeteil |
DE102016205492A1 (de) * | 2016-04-04 | 2017-10-05 | Thyssenkrupp Ag | Verfahren und Vorrichtung zum Umformen eines Halbzeugs |
JP2019171414A (ja) * | 2018-03-28 | 2019-10-10 | アイシン・エィ・ダブリュ株式会社 | ボス部成形方法 |
DE102020201889A1 (de) * | 2020-02-14 | 2021-08-19 | Sram Deutschland Gmbh | Ritzel für einen Fahrrad-Antrieb |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2505650Y2 (ja) * | 1989-08-08 | 1996-07-31 | 本田技研工業株式会社 | 変速機構 |
JPH0741849Y2 (ja) * | 1990-02-02 | 1995-09-27 | 本田技研工業株式会社 | 動弁機構の給油装置 |
DE4400257C1 (de) | 1993-12-09 | 1994-12-01 | Wf Maschinenbau Blechformtech | Drückverfahren zur spanlosen Herstellung einer Nabe eines die Nabe aufweisenden Getriebeteiles |
ES2107817T3 (es) | 1993-12-09 | 1997-12-01 | Wf Maschinenbau Blechformtech | Procedimiento para la fabricacion sin arranque de viruta de un cubo de una pieza de engranaje que tiene un cubo. |
DE4444526C1 (de) | 1994-11-30 | 1995-11-30 | Wf Maschinenbau Blechformtech | Drückvorrichtung zur spanlosen Herstellung einer Nabe eines die Nabe aufweisenden Getriebeteiles |
DE19545890C2 (de) * | 1995-12-08 | 1998-12-17 | Leifeld Gmbh & Co | Verfahren zur Herstellung eines Werkstücks mit Nabe und Drück- oder Drückwalzmaschine |
US5951422A (en) * | 1996-06-24 | 1999-09-14 | The Gates Corporation | Hub and pulley with radially inward annular collar |
US5947853A (en) * | 1996-08-15 | 1999-09-07 | The Gates Corporation | Spun pulley with thick hub |
JP3290098B2 (ja) * | 1997-05-12 | 2002-06-10 | 日本スピンドル製造株式会社 | 円板状素材のボス出し成形方法 |
DE19915027A1 (de) * | 1999-04-01 | 2000-01-20 | Leico Werkzeugmaschb Gmbh & Co | Getriebeteil und Verfahren zum Formen eines Getriebeteils |
JP2000153312A (ja) * | 1998-11-16 | 2000-06-06 | Nissan Motor Co Ltd | 板状ワークのボス部成形方法 |
DE19983602T1 (de) * | 1999-07-28 | 2002-01-31 | Kanemitsu Corp | Sheet Metal Member And Method Of Manufacturing The Member |
DE10033089A1 (de) * | 2000-02-15 | 2001-08-23 | Wf Maschinenbau Blechformtech | Verfahren zur spanlosen Herstellung eines Bauteiles mit Nabe |
US6598443B2 (en) * | 2000-04-26 | 2003-07-29 | A. J. Rose Manufacturing Co. | Blind bore hub and method of forming |
DE10033239A1 (de) * | 2000-07-10 | 2002-01-24 | Wf Maschinenbau Blechformtech | Verfahren zur Herstellung einer Verstellscheibe eines stufenlosen Getriebes |
DE10160038C1 (de) * | 2001-12-06 | 2003-03-13 | Winkelmann & Pannhoff Gmbh & C | Verfahren zur Herstellung eines rotationssymmetrischen Bauteils |
-
2004
- 2004-11-15 EP EP04803144A patent/EP1697066B1/de not_active Not-in-force
- 2004-11-15 DE DE502004005869T patent/DE502004005869D1/de active Active
- 2004-11-15 JP JP2006540279A patent/JP5118852B2/ja not_active Expired - Fee Related
- 2004-11-15 CA CA2546338A patent/CA2546338C/en not_active Expired - Fee Related
- 2004-11-15 US US10/579,727 patent/US7797976B2/en not_active Expired - Fee Related
- 2004-11-15 KR KR1020067011925A patent/KR101151463B1/ko active IP Right Grant
- 2004-11-15 AT AT04803144T patent/ATE382441T1/de not_active IP Right Cessation
- 2004-11-15 WO PCT/EP2004/012924 patent/WO2005046901A1/de active IP Right Grant
- 2004-11-15 ES ES04803144T patent/ES2299891T3/es active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2005046901A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107159768A (zh) * | 2017-07-13 | 2017-09-15 | 芜湖西诺普汽车零部件科技有限公司 | 一种螺母板加工工艺及铲旋模具 |
Also Published As
Publication number | Publication date |
---|---|
KR101151463B1 (ko) | 2012-06-01 |
US7797976B2 (en) | 2010-09-21 |
EP1697066B1 (de) | 2008-01-02 |
ATE382441T1 (de) | 2008-01-15 |
JP5118852B2 (ja) | 2013-01-16 |
WO2005046901A1 (de) | 2005-05-26 |
CA2546338A1 (en) | 2005-05-26 |
ES2299891T3 (es) | 2008-06-01 |
JP2007511370A (ja) | 2007-05-10 |
DE502004005869D1 (de) | 2008-02-14 |
US20070256465A1 (en) | 2007-11-08 |
KR20060126656A (ko) | 2006-12-08 |
CA2546338C (en) | 2012-01-10 |
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