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EP0555631B2 - Procédé de fabrication d'élément de transmission à denture externe - Google Patents
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EP0555631B2 - Procédé de fabrication d'élément de transmission à denture externe - Google Patents

Procédé de fabrication d'élément de transmission à denture externe Download PDF

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Publication number
EP0555631B2
EP0555631B2 EP19930100136 EP93100136A EP0555631B2 EP 0555631 B2 EP0555631 B2 EP 0555631B2 EP 19930100136 EP19930100136 EP 19930100136 EP 93100136 A EP93100136 A EP 93100136A EP 0555631 B2 EP0555631 B2 EP 0555631B2
Authority
EP
European Patent Office
Prior art keywords
tool
toothed
curl
roller
chain
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.)
Expired - Lifetime
Application number
EP19930100136
Other languages
German (de)
English (en)
Other versions
EP0555631B1 (fr
EP0555631A1 (fr
Inventor
Udo Friese
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WF Maschinenbau und Blechformtecknik GmbH and Co KG
Original Assignee
WF Maschinenbau und Blechformtecknik GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25911806&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0555631(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE4205711A external-priority patent/DE4205711C3/de
Application filed by WF Maschinenbau und Blechformtecknik GmbH and Co KG filed Critical WF Maschinenbau und Blechformtecknik GmbH and Co KG
Publication of EP0555631A1 publication Critical patent/EP0555631A1/fr
Publication of EP0555631B1 publication Critical patent/EP0555631B1/fr
Application granted granted Critical
Publication of EP0555631B2 publication Critical patent/EP0555631B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • 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

Definitions

  • the invention relates to a method of manufacture an externally toothed gear part according to the preamble of claim 1 and one Device for performing the method.
  • External gear parts are e.g. as Flywheels for manual transmissions or starters in motor vehicle construction widely used. So far such gear parts either through it made that e.g. the flywheels are made in two parts were. Here the flywheel washer made from cold-formed sheet metal and the external teeth in a separate ring by means of machining Formation formed. The ring was then on the Flywheel disc welded on. This well-known Arrangement has the disadvantage that it is expensive is and that the welding process changes material be entered into the flywheel, the are not fully visible.
  • a flywheel is known from EP-0 140 576 A1 become known, which consists of a pressed part, i.e. one Preference is made, the one on the outside provided an axially extending part Teeth are made by rolling.
  • the drawing shows this component as if the inner ring of the teeth is smooth.
  • This method has the disadvantage that a preference is assumed, the Wall thickness of the axially extending cylindrical Area corresponds exactly to the wall thickness of the hub surface, so that either the base of the sprocket is too thin and too weak to break the Teeth can enter, or the hub surface is too thick, so here is a waste of material and a undesirable weight increase occurs.
  • FR-A-24 95 508 describes a process for the production of pulleys or poly-V pulleys became known, in which a metal blank in a first step is deep pressed so that a pot-like pressed part is achieved.
  • This press part has in the area of the hub surface and in the area of the coaxial, i.e. essentially perpendicular to the hub surface extending cylindrical surface the same wall thickness on. Then it is necessary to the edge area of the cylindrical surfaces formed to edit.
  • the next process step closes a so-called "collapse" of the cylindrical edge surface on. Through this "collapse” the cylindrical Edge height reduced by deformation, at the same time the edge area between the Hub surface and the cylindrical surface folded becomes. The collapsed edge area is then over a Squeeze roll formed and compressed.
  • This known method essentially requires five consecutive, essential essential processing steps, including those for collapsing forces are considerable, so that large machine expenditures are required.
  • the invention has for its object a method to create with which starting from a Ronde without hardening of the material a thickening of the Edge area of the round blank when producing the teeth is achieved.
  • the Hub surface is relatively thin-walled and its itself edge area extending perpendicular to the hub surface, which receives the ring gear, has such a strength, that the teeth have the sufficient height and the The rim of the sprocket has sufficient strength having.
  • a device which is essentially characterized by that two synchronously driven shafts are provided are, the one shaft, the spindle for the Carries the tool and the step-up and the other shaft the form roll, synchronizing these two Waves done by a chain drive.
  • This is the Only one drive motor possible, and the previous ones Try synchronizing between one Tool and a form roll through electronic Achieving circuit has been the case with the high ones occurring here Forces not proven.
  • the deflection and tension rollers are also additionally on the slide by adjusting screws in their position adjustable, so that thereby adjusting the individual deflection and tensioning rollers with the adjusting screws becomes possible, resulting in the possibility results in precisely aligning the toothed roller with the tool.
  • the sprocket regardless of the slide and adjust their rotary position regardless of the tool can and can align with the tool.
  • a metal disc is shown at 1, the between a tool 2 and a 3 set is.
  • the tool has a receiving space 7 on.
  • a bordering roller 4 shown that has a medium rounded area and two counter-holder disks 4a attached to it and 4b.
  • the bordering roller 4 replaced by a toothed roller 5, which works as a form roller and has a central region which is at its Has outer circumference teeth, being additionally by the counter holder disks 5a and 5b a receiving space 8 is created.
  • a tooth 9 of the sprocket 5 recognizable.
  • 12 denotes the hub surface of a starter gear, this hub surface having a thickness a .
  • the ring gear in this component is formed by the teeth 10 and the continuous base 11, the thickness of the base 11 corresponding at least to the thickness of the hub surface 12.
  • FIG. 3 correspondingly an output part, for example a metal blank, the bordering of which is not is semicircular as shown in Fig. 3, but which is only slightly bent, then at The sprocket shown in Fig. 4 does the same Result is achieved as shown in Fig. 4.
  • Fig. 7 that is for the manufacture of the transmission part 5 required starting product a preference 16, this preference 16 in addition to a border 17 one extending in the axial direction of the hub surface Has flange 18, the later with so-called Donor holes can be provided if this Gearbox part in motor vehicle construction in the area of the starter is used.
  • the one shown in FIG. 7 Component the need for a two-stage Procedure exists, namely in a first working process the preference 16 must be pressed and then this component must be reclamped and to a Forming machine will be clamped anyway great advantage achieved that for the inclusion of the Sensor holes required flange 18 in one piece with the Hub surface of the gear part are manufactured can.
  • the ring gear formed by feeding a toothed roller 20, whereby the border 17 then in the receiving space 1a of the Tool and 8a of the toothed roller 20 presses.
  • FIG. 8 shows a device schematically, in which a shaft 22 is recognizable by its upper area the spindle for the tool wearing. In the lower area, the shaft 22 carries a sprocket 23.
  • a carriage 21 can be seen, the one Shaft 24 carries the sprocket in its upper area carries, while in the lower area a sprocket 25th is recognizable.
  • the two sprockets 23 and 25 are connected to each other via a chain 26, which i.a. about Deflection and tension rollers 27 and 28 is guided on a carriage 29 are rotatably mounted. That sleigh 29 can have a hydraulic piston-cylinder arrangement be moved back and forth, with at corresponding movement of the carriage 21, the over adjusted a mechanical device, not shown can be a corresponding retensioning of the Chain 26 through the hydraulic piston-cylinder arrangement 30 takes place. This drives the two shafts 22 and 24 possible via a motor and it becomes a absolute synchronous operation despite the high occurring Pressures reached.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gears, Cams (AREA)
  • Forging (AREA)

Claims (5)

  1. Procédé de fabrication d'un élément de transmission à denture externe à partir d'un flan métallique (1) comprenant une surface de moyeu (12) et une couronne dentée périphérique formée d'une couronne de pied (11) et de dents (10) qui en dépassent vers l'extérieur, laquelle couronne dentée s'étend sensiblement perpendiculairement à la surface de moyeu (12), le flan métallique (1) étant bordé au niveau de sa circonférence, et la bordure (6, 17) étant aplatie dans un logement (7) d'un outil (2) et étant munie de dents (10), caractérisé en ce que la bordure (6, 17) est aplatie, c'est-à-dire formée sans copeaux, avec formation simultanée des dents (10) dans un logement (7) d'un outil (2) et un logement (8) d'un rouleau à dents (5).
  2. Procédé selon la revendication 1, caractérisé en ce qu'à partir du flan métallique, il est fabriqué une ébauche (16) pourvue d'une bordure (17) et d'une bride (18) s'y raccordant et s'étendant sensiblement perpendiculairement à la surface de moyeu (12).
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que la bordure (6, 17) est réalisé au moyen d'un rouleau de formage conformé en rouleau à dents (5, 20).
  4. Dispositif de fabrication d'un élément de transmission à denture externe, dans lequel le profilage est effectué par pression après approche d'au moins un rouleau à dents, au moyen de celui-ci, avec aplatissement simultané d'une bordure, un outil (2, 2a) étant monté fixe sur une broche de montage, le rouleau à dents (5, 20) étant placé sur un chariot (21) qui peut être déplacé en direction de l'outil (2), la broche de montage qui supporte l'outil portant une roue à chaíne (23) et l'arbe (24) qui entraíne le rouleau à dents (5, 20), avec interposition d'un boítier à engrenages de facon synchrone que l'outil portant une roue à chaíne (25), étant reliés l'un à l'autre par l'intermédiaire d'une chaíne (26), deux rouleaux de renvoi et de tension (27, 28) montés sur un chariot (29) étant intercalés sur cette chaíne et étant réglables, par l'intermédiaire d'un dispositif hydraulique (30) à piston et cylindre, par rapport au chariot (21) portant l'arbre (24), et agissant en tant que tendeurs de chaíne.
  5. Dispositif selon la revendication 4, caractérisé par des vis de réglage (31, 32) permettant un réglage des rouleaux de tension (27, 28).
EP19930100136 1992-02-13 1993-01-07 Procédé de fabrication d'élément de transmission à denture externe Expired - Lifetime EP0555631B2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4204248 1992-02-13
DE4204248 1992-02-13
DE4205711 1992-02-25
DE4205711A DE4205711C3 (de) 1992-02-13 1992-02-25 Vorrichtung zur Herstellung eines außen verzahnten Getriebeteiles

Publications (3)

Publication Number Publication Date
EP0555631A1 EP0555631A1 (fr) 1993-08-18
EP0555631B1 EP0555631B1 (fr) 1996-04-03
EP0555631B2 true EP0555631B2 (fr) 1998-12-23

Family

ID=25911806

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930100136 Expired - Lifetime EP0555631B2 (fr) 1992-02-13 1993-01-07 Procédé de fabrication d'élément de transmission à denture externe

Country Status (4)

Country Link
EP (1) EP0555631B2 (fr)
CA (1) CA2086043C (fr)
DE (1) DE4244720A1 (fr)
ES (1) ES2086139T3 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0966330A (ja) * 1995-08-31 1997-03-11 Fuji Kiko Co Ltd 円板外周部の増肉方法及び外周に伝導部を有する円板部材の成形方法
CA2263408A1 (fr) * 1996-08-14 1998-02-19 Wf-Maschinenbau Und Blechformtechnik Gmbh & Co. Kommanditgesellschaft Procede et dispositif de fabrication d'une partie d'engrenage a denture exterieure
DE19850740A1 (de) * 1998-09-09 2000-03-23 Wf Maschinenbau Blechformtech Verfahren zur Herstellung eines Getriebeteiles im Drückverfahren
DE102005043498A1 (de) * 2005-09-12 2007-03-15 Rollwalztechnik Abele + Höltich GmbH Vorrichtung zum Bearbeiten eines Werkstückes
CN106001230A (zh) * 2016-05-31 2016-10-12 安徽赛爵机械制造有限公司 一种复合减震器用带轮的成形工艺

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3436801A (en) * 1966-06-23 1969-04-08 Pig Design Corp Method of making geared pulley to eliminate burrs in pulley groove and to facilitate entry of belt into pulley
DE2439690A1 (de) * 1974-08-19 1976-03-04 Emil Siegwart Verfahren zum herstellen von zahnraedern, zahnsegmenten oder dergleichen aus metallblech sowie vorrichtung zur durchfuehrung des verfahrens
CA1094356A (fr) * 1977-02-04 1981-01-27 Drive Manufacturing Inc. Methode de fabrication de poulies et la poulie ainsi obtenue
ATE93596T1 (de) * 1989-05-17 1993-09-15 Leifeld Gmbh & Co Verfahren zur herstellung einer riemenscheibe.
DE3932823C1 (en) * 1989-09-30 1990-12-06 Wf-Maschinenbau Und Blechformtechnik Gmbh & Co Kg, 4415 Sendenhorst, De Toothed transmission component mfr. - involves tool with external teeth forming inside teeth on workpiece
DE4205711C3 (de) * 1992-02-13 2000-02-24 Wf Maschinenbau Blechformtech Vorrichtung zur Herstellung eines außen verzahnten Getriebeteiles

Also Published As

Publication number Publication date
EP0555631B1 (fr) 1996-04-03
EP0555631A1 (fr) 1993-08-18
ES2086139T3 (es) 1996-06-16
CA2086043A1 (fr) 1993-08-14
CA2086043C (fr) 2004-12-28
DE4244720A1 (de) 1994-03-03

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