EP0728540B1 - Outil pour le formage de tôle - Google Patents

Outil pour le formage de tôle Download PDF

Info

Publication number
EP0728540B1
EP0728540B1 EP96101769A EP96101769A EP0728540B1 EP 0728540 B1 EP0728540 B1 EP 0728540B1 EP 96101769 A EP96101769 A EP 96101769A EP 96101769 A EP96101769 A EP 96101769A EP 0728540 B1 EP0728540 B1 EP 0728540B1
Authority
EP
European Patent Office
Prior art keywords
tool
shaping
rack
tool according
toothed rack
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
EP96101769A
Other languages
German (de)
English (en)
Other versions
EP0728540A3 (fr
EP0728540A2 (fr
Inventor
Hans-Peter Mansdörfer
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.)
Allgaier Werke GmbH and Co KG
Original Assignee
Allgaier Werke 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
Application filed by Allgaier Werke GmbH and Co KG filed Critical Allgaier Werke GmbH and Co KG
Publication of EP0728540A2 publication Critical patent/EP0728540A2/fr
Publication of EP0728540A3 publication Critical patent/EP0728540A3/fr
Application granted granted Critical
Publication of EP0728540B1 publication Critical patent/EP0728540B1/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
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D15/00—Corrugating tubes
    • B21D15/02—Corrugating tubes longitudinally
    • 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 present invention relates to a Tool to use with a sheet metal part to provide a tooth-shaped or wavy profile.
  • Such molded parts with internal and external teeth are e.g. used in the form of outer disk carriers in vehicle transmissions.
  • Thin-walled materials are known from the prior art First preform metal parts using conventional tools and these parts in a next step using a Tooth cold rolling machine. When cold rolling is usually only a section of the molded part in engagement the rollers. After completing the gearing in this Section of the molded part is moved to the molded part round molded parts - to a next section in Bring engagement of the rollers.
  • a tool according to the preamble of claim 1 in which the form rollers are not driven, can be found in EP-A-0 006 137.
  • the present invention is based on another object To provide a tool to form a sheet metal part with a To provide tooth-shaped or wave-shaped profile.
  • the tool is suitable for use in transfer or step presses, so that it it is possible to produce several molded parts in one operation.
  • form rollers are not driven, i.e. if the Rotation of the form rollers only by frictional engagement with the molded part is caused, it can with regard to that when reshaping forces occur that individual form rollers, e.g. due to insufficient lubrication of the bearing or due to contamination, To block. In addition, it cannot be ruled out foreign substances such as dirt, lubricants, coolant etc. adhere to the molded part or the molded rollers. This can the frictional connection between the molded part and the molded roll is reduced as far that a rotation of the rollers no longer is guaranteed. For these reasons, according to the invention, the form rollers are equipped with a drive. By the The drive of the form rollers is a trouble-free forming ensured.
  • the form rollers are preferably moved together driven by two tool halves. This can help own drives of the form rollers, e.g. in the form of electric motors or pneumatic drives.
  • the tool according to the invention is used on a step or transfer press.
  • Tool can turn sheet metal parts on in one operation a press with a tooth or wave-shaped profile be provided.
  • the molded part becomes non-cutting due to the form rollers formed without stressing the material too much.
  • Each after designing the individual form rollers, can be on the molding different tooth or wave shapes are formed.
  • the form rollers preferably have part of their circumference Teeth, one across the axis of a form roller first rack is arranged.
  • the teeth of the first rack work with the teeth of the associated form roller together to drive this. I.e. the translational Movement of the rack becomes a rotational movement of the form roller implemented.
  • Belt drives can also be used to drive the form rollers or stepper motors can be used.
  • the first rack acts advantageously via a second rack and a gear with a third rack, which when the upper part of the tool and the lower part of the tool move together force is applied. This can cause the moving together of the two tool halves to drive the Form rolls are used. A complex control of the individual form rolls can be omitted.
  • An ejector is preferably arranged in the lower part of the tool, which is coupled to the third rack and a stop forms for the upper part of the tool.
  • form rollers Depending on the type of profile, it may be necessary that the form rollers must be closely spaced.
  • the modular structure of the form rollers and their Storage ensures that even in confined spaces a large number of form rollers housed in the lower part of the tool can be.
  • Fig. 1 is a symmetry half of a Tool shown in section.
  • An upper tool part 20 is located against a lower tool part 10.
  • the upper tool part 20 comprises a stamp 1 and a hold-down device 2.
  • the stamp 1 and the hold-down 2 are relative to that Lower tool part 10 is designed to be movable.
  • Between the lower end of the stamp 1 or the hold-down 2 and the upper end of an ejector 4 is a molded part 3 arranged.
  • the ejector 4 is in the lower half of the tool via intermediate elements 4a and 4b and a guide 5 with a vertically guided rack 6 coupled.
  • the ejector 4, the Intermediate elements 4a and 4b, the guide 5, the intermediate piece 6a and the rack 6 are relative to the rest of the lower tool part 10 axially displaceable.
  • the guide 5 is through a Form-locking element 6a connected to the rack 6 so that a translational movement of the rack 6 in a Rotational movement of a gear 7 is converted.
  • the gear 7 is rotatably supported by a fixed bearing block 8 and is in engagement with the rack 6.
  • the guide 5 is also in abutment against an axially displaceable Air bolts 9.
  • a vertically displaceable rack 11 On the side of the gear wheel opposite the rack 6 7 is a vertically displaceable rack 11, which is also in engagement with the gear 7.
  • the rack 11 is an intermediate plate 12 with a Rack 14 coupled.
  • the rack 14 is through one Base body 11a and a carrier plate 16 vertically displaceable guided above the rack 11.
  • the Rack 14 with a toothed segment 15 of a form roller 19 in Intervention.
  • the form roller 19 is through a fixed axis 17a rotatably mounted.
  • Above the form roller 19 is one Cover plate 18 with a through opening for the rack 14 arranged.
  • Fig. 2 As can be seen from Fig. 2, several form rollers 19 are on arranged a circumference of the lower tool part.
  • the Form rollers 19 are in the stop against the molded part 19, to give it a tooth-like profile.
  • the form rollers 19 are simultaneously in engagement with the racks 13.
  • Each form roller 19 is assigned a rack 13, so that each form roller is provided with a separate drive.
  • the form rollers 19 are each through an axis 17a rotatably mounted.
  • the axis 17a is integral with one Holding segment 17b. Both parts together form a bearing element 17a, b for a form roller 19.
  • the bearing elements 17 a, b and Form rollers 19 are composed of modules. Do a Bearing element 17 a, b and a form roller 19 each have a module.
  • the embodiment of the tool according to the invention works as follows. First becomes that preformed in the step or transfer tool set Sheet metal part 3 with a gripping feed in the invention Tool inserted. During the subsequent closing movement of the Tool is the molded part 3 by the stamp 1 down pressed. The pressure of the stamp 1 acts via the elements 4, 4a, 4b, 5 and 6a of the lower tool part 10 onto the rack 6. That means the rack 6 is after closing the tool moved below. Moving the rack 6 when Closing the tool down causes gear 7 is rotated counterclockwise. The rotation of the Gear 7 counterclockwise has in turn that the Rack 11 is moved upwards. The shift of the Rack 11 causes the rack 14th is also moved up. The shift of the Rack 14 has according to that the gear 19 in a Counterclockwise rotation.
  • Gear parts with internal and external teeth on one Step press can be completely manufactured in one operation. This is a cost saving of about 50-70% compared to to achieve diverting production on cold rolling machines.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Press Drives And Press Lines (AREA)

Claims (10)

  1. Outil pour presse destiné à doter une pièce formée (3) en tôle d'un profil dentiforme ou ondulé, avec une partie inférieure (10) et une partie supérieure (20) d'un outil qui interagissent pour former la pièce formée (3), le formage s'effectuant en une seule opération et des rouleaux de mise en forme (19) dirigés vers la pièce formée (3) et placés à la périphérie d'un cercle, étant prévus pour façonner le profil dentiforme ou ondulé, caractérisé en ce que les rouleaux de mise en forme (19), en complément de la friction avec la pièce formée (3), sont équipés d'un entraínement pour les entraíner autour de leur propre axe (17a).
  2. Outil selon la revendication 1, caractérisé en ce que l'entraínement est configuré de manière à ce que les rouleaux de mise en forme (19) sont entraínés par le mouvement de rencontre des deux moitiés d'outil (10, 20).
  3. Outil selon l'une des revendications 1 ou 2, caractérisé en ce que les rouleaux de mise en forme (19) sont placés de façon à pivoter sur ou dans la partie inférieure de l'outil (10).
  4. Outil selon l'une des revendications précédentes, caractérisé en ce que les rouleaux de mise en forme (19) présentent des dents (15) sur une partie de leur circonférence, une première crémaillère (14) est placée transversalement à l'axe de chaque rouleau de mise en forme (19), et les dents de la première crémaillère (14) interagissent avec les dents (15) du rouleau de mise en forme (19) correspondant pour entraíner ce dernier.
  5. Outil selon la revendication 4, caractérisé en ce que la première crémaillère (14) interagit, par l'intermédiaire d'une deuxième crémaillère (11) et d'une roue dentée (11) avec une troisième crémaillère (6), laquelle est soumise à des efforts lors du rapprochement de la partie supérieure de l'outil (20) et de la partie inférieure de l'outil (10).
  6. Outil selon la revendication 5, caractérisé en ce que dans la partie inférieure de l'outil (10) se trouve un éjecteur (4) couplé à la troisième crémaillère (6) et forme une butée pour la partie supérieure de l'outil (20).
  7. Outil selon l'une des revendications précédentes, caractérisé en ce que la partie supérieure de l'outil (20) est équipée d'un serre-flanc (2).
  8. Outil selon l'une des revendications 5 à 7, caractérisé en ce que les crémaillères (6, 11, 14) peuvent être déplacées dans les glissières (5, 13).
  9. Outil selon l'une des revendications précédentes, caractérisé en ce que plusieurs rouleaux de mise en forme (19) sont placés l'un à côté de l'autre dans la partie inférieure de l'outil (10), et en ce que chaque rouleau de mise en forme (19) peut pivoter grâce à un axe (17a) formant une seule pièce avec un support (17b).
  10. Outil selon la revendication 9, caractérisé en ce que chaque unité support (17b) / axe (17a) forme un module avec un rouleau de mise en forme (19).
EP96101769A 1995-02-23 1996-02-07 Outil pour le formage de tôle Expired - Lifetime EP0728540B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19506391A DE19506391B4 (de) 1995-02-23 1995-02-23 Verfahren zum Herstellen eines ein zahn- oder wellenförmiges Profil aufweisenden Getriebebauteils aus einer Blechplatine
DE19506391 1995-02-23

Publications (3)

Publication Number Publication Date
EP0728540A2 EP0728540A2 (fr) 1996-08-28
EP0728540A3 EP0728540A3 (fr) 1997-08-27
EP0728540B1 true EP0728540B1 (fr) 2000-06-14

Family

ID=7754881

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96101769A Expired - Lifetime EP0728540B1 (fr) 1995-02-23 1996-02-07 Outil pour le formage de tôle

Country Status (3)

Country Link
EP (1) EP0728540B1 (fr)
DE (2) DE19506391B4 (fr)
ES (1) ES2146799T3 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10317506C5 (de) * 2003-04-16 2008-05-15 Daimler Ag Verfahren zum Herstellen eines hohlen Werkstücks und nach dem Verfahren hergestelltes hohles Werkstück
DE102006025034A1 (de) * 2006-05-26 2007-11-29 Müller Weingarten AG Vorrichtung und Verfahren zur Herstellung von Profilkörpern
DE102007063361B4 (de) * 2007-12-28 2013-06-13 Aweba Werkzeugbau Gmbh Aue Vorrichtung zur Herstellung eines Blechwerkstückes mit einer zylindrischen innen und außen zahnartig profilierten Wand
DE102008002297A1 (de) 2008-06-09 2009-12-10 Allgaier Werke Gmbh Rollumformverfahren zur Herstellung von längsverzahnten Profilkörpern in topfförmigen zylindrischen Werkstücken
DE102008047985A1 (de) * 2008-09-18 2010-03-25 Webo Werkzeugbau Oberschwaben Gmbh Vorrichtung und Verfahren zur Herstellung von Längsnuten in zylindrischen Werkstücken
DE102016006589B4 (de) 2016-05-28 2021-06-10 Form Technology Gmbh Verfahren und Vorrichtung zur Herstellung von Längsnuten in zylindrischen Bauteilen

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2017709A1 (de) * 1970-04-14 1971-11-04 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Werkzeug zum Einrollen von Längsnuten in zylindrische Werkstücke
DE2649916A1 (de) * 1975-10-31 1977-05-26 Altajskij Nii Tekh Mash Werkzeugmaschine zum laengseinrollen von profilen
US4178790A (en) * 1978-05-22 1979-12-18 Ex-Cell-O Corporation Roll-through cold forming apparatus
FR2482483A1 (fr) * 1980-05-14 1981-11-20 Renault Outil de faconnage par profilage, de cannelures ou de rainures sur des pieces cylindriques en tole
US4380918A (en) * 1981-03-02 1983-04-26 Anderson-Cook Inc. Thin-wall spline forming machine
US4677836A (en) * 1984-06-29 1987-07-07 Anderson-Cook, Inc. Apparatus for flanging and splining a thin-walled power transmission member
DE3712123C2 (de) * 1986-07-24 1996-02-22 Grob Ernst Fa Verfahren zur Herstellung eines Starterkranz-Zahnrads

Also Published As

Publication number Publication date
DE59605420D1 (de) 2000-07-20
ES2146799T3 (es) 2000-08-16
EP0728540A3 (fr) 1997-08-27
DE19506391B4 (de) 2010-01-07
EP0728540A2 (fr) 1996-08-28
DE19506391A1 (de) 1996-09-05

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