EP1119426A1 - Werkzeug zur herstellung eines aussen verzahnten getriebeteiles - Google Patents
Werkzeug zur herstellung eines aussen verzahnten getriebeteilesInfo
- Publication number
- EP1119426A1 EP1119426A1 EP99914413A EP99914413A EP1119426A1 EP 1119426 A1 EP1119426 A1 EP 1119426A1 EP 99914413 A EP99914413 A EP 99914413A EP 99914413 A EP99914413 A EP 99914413A EP 1119426 A1 EP1119426 A1 EP 1119426A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- axis
- workpiece
- tool
- tooth
- areas
- 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
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H5/00—Making gear wheels, racks, spline shafts or worms
- B21H5/02—Making gear wheels, racks, spline shafts or worms with cylindrical outline, e.g. by means of die rolls
-
- 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
- B21D53/28—Making other particular articles wheels or the like 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
- B21K1/28—Making machine elements wheels; discs
- B21K1/30—Making machine elements wheels; discs with gear-teeth
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49462—Gear making
- Y10T29/49467—Gear shaping
- Y10T29/49471—Roll forming
Definitions
- the invention relates to a tool for producing an externally toothed gear part according to the preamble of the main claim. Furthermore, the invention relates to a method for producing an externally toothed gear part according to the preamble of claim 5.
- workpiece means the blank to be machined or partially machined.
- Pressing is understood to mean a process in metal forming which is used to produce rotationally symmetrical bodies using pressing tools. Recently, the term “roll forming” or “pressing rolls” is also used in technology for this process.
- a generic tool is described in DE 196 13 457 C1.
- the forming roller having a plurality of forming regions not only executes a movement in the direction of the Y axis for each forming region, but - since the tip circle of the individual forming regions is increasing - the tool must move in the direction of the YY with every movement -Axis also perpendicular to the YY-axis, i.e. H. So be moved back radially so that the next forming area in the preformed tooth area of the
- Workpiece can intervene.
- the material of the workpiece displaced by the tool is displaced into the space of the tooth to be formed, that is to say into the space that exists between the teeth of the tool. This can lead to unfolding or uncontrolled deposition of the displaced
- the object of the invention is to enable a manufacturing process by means of a suitably designed tool, in which an uncontrolled flow of the displaced material does not occur in the area of the tooth to be formed, and which also avoids the additional movement of the form roller that was previously required in the prior art .
- the invention is also based on the object of proposing a method which makes it possible to produce an externally toothed gear part quickly and inexpensively.
- the tip circle of the tool is the same over all the forming areas and that the different tooth depth is achieved by changing the root circle of the teeth of the tool.
- the material of the workpiece displaced by the teeth of the tool flows outwards in the arrangement according to the invention and can be removed here after the gear wheel has been finished by appropriate material processing.
- the form roller is freely rotatable according to the invention and thus adapts to the teeth to be formed without difficulty and gear coupling with the drive of the receiving tool.
- a limiting device is provided, which is preferably formed by two interacting pressure rollers which between the outflowing material hold, shape and limit if necessary.
- the circumferential area of the workpiece to be reshaped is optimized, for example concavely curved inwards or recessed inward via straight surfaces, so that only so much material in the circumferential area of the workpiece is present, as is necessary for the formation of the actual tooth.
- the method according to the invention is essentially characterized in that several form rollers can be used simultaneously on the workpiece. As a result, the pressure on the holding tool that occurs due to the pressing of the forming roller into the workpiece is minimized, since this pressure is absorbed by the possibly opposite forming roller. Two, three or even more form rollers can be provided on the circumference of the workpiece.
- the workpiece is set in a rotating back and forth movement, whereby the two flanks of the tooth formed are acted upon uniformly by the form roller, so that differences in the tooth flanks are avoided here.
- FIG. 1 and 2 in a sectional view, the various stages of the tool in relation to the workpiece, in Fig. 3 in a diagrammatic representation
- a pick-up tool 1 which rotates around an X-X.
- a workpiece 3 or blank is fixed on the holding tool 1 by a presetter 2.
- a form roller 4 is, for. B. from four individual forming areas 4a, 4b, 4c and 4d, which form roller 4 can rotate about an axis Y-Y and is freely rotatable.
- the holding tool 1 is driven in a revolving manner and preferably in a reciprocating, revolving movement, which can be, for example, 180 ° or 120 °.
- a reciprocating, revolving movement which can be, for example, 180 ° or 120 °.
- the forming area 4a is set in relation to the radial outer edge of the workpiece 3 and then advanced to the workpiece 3, and the tooth area 5a is brought into contact with the outer edge of the workpiece 3 and a recess is formed by pressing.
- the form sheet 4 is adjusted further in the direction of its Y axis by a forming area, so that the tooth area 5b of the forming area 4b with the workpiece 3 in
- limiting devices 7 and 8 are provided, which in the illustration are out of engagement with the peripheral region 11 of the workpiece 3, for. B. a round blank are shown, but are in this circumferential area when performing the working process.
- Each limiting device 7 or 8 has pressure rollers 9 and 10, which now prevent the material displaced by the teeth, for example 5a, from flowing out in an uncontrolled manner.
- FIG. 5 shows an exemplary embodiment in section of the peripheral region of the workpiece 3, which has a concave curvature 12 for optimizing the flowing material, while according to FIG. 6 this optimization is achieved by straight cuts or recesses 14.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Gears, Cams (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Gear Transmission (AREA)
Abstract
Description
Claims
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29819979U | 1998-10-08 | ||
DE29817979U DE29817979U1 (de) | 1998-10-08 | 1998-10-08 | Werkzeug zur Herstellung eines außen verzahnten Getriebeteiles |
DE29817979U | 1998-10-08 | ||
PCT/DE1999/000387 WO2000021699A1 (de) | 1998-10-08 | 1999-02-10 | Werkzeug zur herstellung eines aussen verzahnten getriebeteiles |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1119426A1 true EP1119426A1 (de) | 2001-08-01 |
EP1119426B1 EP1119426B1 (de) | 2002-11-20 |
Family
ID=8063660
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99914413A Expired - Lifetime EP1119426B1 (de) | 1998-10-08 | 1999-02-10 | Werkzeug zur herstellung eines aussen verzahnten getriebeteiles |
Country Status (6)
Country | Link |
---|---|
US (1) | US6470724B1 (de) |
EP (1) | EP1119426B1 (de) |
JP (1) | JP2002527243A (de) |
DE (2) | DE29817979U1 (de) |
ES (1) | ES2183537T3 (de) |
WO (1) | WO2000021699A1 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7628049B2 (en) * | 2001-06-14 | 2009-12-08 | Tulip Corporation | Method and apparatus for manufacturing a battery terminal with undercut rings |
US6868606B2 (en) * | 2001-11-16 | 2005-03-22 | Wf-Maschinenbau Und Blechformtechnik Gmbh & Co. Kg | Method and apparatus for making a rotation-symmetrical gear member |
JP2007526133A (ja) * | 2004-03-03 | 2007-09-13 | ワイドマー、スタン・シー | ボア面をパターニングする方法及び装置 |
DE102004014863A1 (de) * | 2004-03-26 | 2005-10-13 | Wf-Maschinenbau Und Blechformtechnik Gmbh & Co Kg | Verfahren und Vorrichtung zur Herstellung eines außen profilierten Getriebeteils |
US7717652B2 (en) * | 2005-01-18 | 2010-05-18 | Makino, Inc. | Tool with selectively-biased member having an adjustment feature |
US7090445B2 (en) * | 2005-01-18 | 2006-08-15 | Makino, Inc. | Tool with selectively-biased member |
US7806635B2 (en) * | 2007-03-07 | 2010-10-05 | Makino, Inc. | Method and apparatus for producing a shaped bore |
EP2125266B1 (de) | 2007-03-19 | 2021-06-02 | Magna Powertrain Inc. | Verfahren zur herstellung einer zahnscheibe |
FR2921572B1 (fr) * | 2007-09-28 | 2009-12-11 | Snecma | Dispositif de conformation circulaire d'une piece de revolution, notamment un carter d'echappement d'une turbomachine |
DE102011011438A1 (de) * | 2011-02-16 | 2012-08-16 | Form Technology Gmbh | Herstellung einer Planetenträgerverbindung durch partielle Umformung im Rollverfahren |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1568648A (en) * | 1926-01-05 | of detroit | ||
US4045988A (en) * | 1976-04-14 | 1977-09-06 | Anderson-Cook Inc. | Rotary forming machine and tool |
SU1224073A1 (ru) * | 1984-11-19 | 1986-04-15 | Orlov Viktor V | Инструмент дл накатывани профилей зубьев зубчатых колес |
US5379620A (en) * | 1993-06-23 | 1995-01-10 | Kinefac Corporation | Apparatus and method for forming precision surfaces on shaft-like components |
DE4335505C1 (de) * | 1993-10-19 | 1994-08-25 | Wf Maschinenbau Blechformtech | Vorrichtung zur Herstellung eines außen verzahnten Getriebeteiles |
JPH0929375A (ja) * | 1995-07-20 | 1997-02-04 | Mazda Motor Corp | ロールフォーミング方法および装置 |
DE19613457C2 (de) * | 1996-04-04 | 2001-11-29 | Wf Maschinenbau Blechformtech | Vorrichtung zur Herstellung eines außen verzahnten Getriebeteiles |
JP3377974B2 (ja) * | 2000-01-12 | 2003-02-17 | サムテック株式会社 | 外歯を有する成形品の成形方法 |
-
1998
- 1998-10-08 DE DE29817979U patent/DE29817979U1/de not_active Expired - Lifetime
-
1999
- 1999-02-10 US US09/806,753 patent/US6470724B1/en not_active Expired - Fee Related
- 1999-02-10 EP EP99914413A patent/EP1119426B1/de not_active Expired - Lifetime
- 1999-02-10 JP JP2000575651A patent/JP2002527243A/ja active Pending
- 1999-02-10 DE DE59903494T patent/DE59903494D1/de not_active Expired - Fee Related
- 1999-02-10 WO PCT/DE1999/000387 patent/WO2000021699A1/de active IP Right Grant
- 1999-02-10 ES ES99914413T patent/ES2183537T3/es not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO0021699A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP1119426B1 (de) | 2002-11-20 |
WO2000021699A1 (de) | 2000-04-20 |
ES2183537T3 (es) | 2003-03-16 |
DE59903494D1 (de) | 2003-01-02 |
JP2002527243A (ja) | 2002-08-27 |
US6470724B1 (en) | 2002-10-29 |
DE29817979U1 (de) | 1999-01-14 |
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