EP0728540B1 - Werkzeug zur Blechumformung - Google Patents
Werkzeug zur Blechumformung Download PDFInfo
- 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
Links
- 239000002184 metal Substances 0.000 title claims description 10
- 238000007493 shaping process Methods 0.000 title claims 14
- 230000033001 locomotion Effects 0.000 claims description 13
- 238000005097 cold rolling Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000969 carrier Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- -1 dirt Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
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)
Description
- Fig. 1
- einen Schnitt durch ein Werkzeug und
- Fig.2
- eine Teildraufsicht des Werkzeugunterteils aus Fig 1.
Claims (10)
- Werkzeug für eine Presse, um ein Formteil (3) aus Blech mit einem zahnförmigen oder wellenförmigen Profil zu versehen, mit einem Werkzeugunterteil (10) und einem Werkzeugoberteil (20), die zur Umformung des Formteils (3) zusammenwirken,
wobei das Umformen in einem Arbeitsgang erfolgt und zum Ausbilden des zahnförmigen oder wellenförmigen Profils Formrollen (19) vorgesehen sind, die zum Formteil (3) gerichtet auf einem Kreisumfang angeordnet sind,
dadurch gekennzeichnet,
daß die Formrollen (19) in Ergänzung des Reibschlusses mit dem Formteil (3) mit einem Antrieb ausgestaltet sind, um sie um die eigenen Achsen (17a) anzutreiben. - Werkzeug nach Anspruch 1,
dadurch gekennzeichnet, daß der Antrieb derart gestaltet ist,
daß die Formrollen (19) durch die Zusammenfahrbewegung der Werkzeughälften (10, 20) angetrieben werden. - Werkzeug nach einem der Ansprüche 1 oder 2,
dadurch gekennzeichnet,
daß die Formrollen (19) an bzw. in dem Werkzeugunterteil (10) drehbar angebracht sind. - Werkzeug nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,daß die Formrollen (19) auf einem Teil ihres Umfangs Zähne (15) aufweisen,daß jeweils quer zur Achse einer Formrolle (19) eine erste Zahnstange (14) angeordnet ist, unddaß die Zähne der ersten Zahnstange (14) mit den Zähnen (15) der zugehörigen Formrolle (19) zusammenwirken, um diese anzutreiben. - Werkzeug nach Anspruch 4,
dadurch gekennzeichnet,
daß die erste Zahnstange (14) über eine zweite Zahnstange (11) und ein Zahnrad (7) mit einer dritten Zahnstange (6) zusammenwirkt, welche beim Zusammenfahren von Werkzeugoberteil (20) und Werkzeugunterteil (10) mit Kraft beaufschlagt wird. - Werkzeug nach Anspruch 5,
dadurch gekennzeichnet,
daß im Werkzeugunterteil (10) ein Ausstoßer (4) angeordnet ist, der mit der dritten Zahnstange (6) gekoppelt ist und einen Anschlag für das Werkzeugoberteil (20) bildet. - Werkzeug nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß das Werkzeugoberteil (20) mit einem Niederhalter (2) ausgestattet ist. - Werkzeug nach einem der Ansprüche 5 bis 7,
dadurch gekennzeichnet,
daß die Zahnstangen (6, 11, 14) verschiebbar in Führungen (5, 13) angeordnet sind. - Werkzeug nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,daß mehrere Formrollen (19) nebeneinander in dem Werkzeugunterteil (10) angeordnet sind, unddaß die Formrollen (19) jeweils einzeln durch eine Achse (17a) drehbar gelagert sind, die mit einem Halter (17b) einstückig ist. - Werkzeug nach Anspruch 9,
dadurch gekennzeichnet,
daß jeweils eine Einheit Halter (17b)/Achse (17a) und eine Formrolle (19) ein Modul bildet.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19506391 | 1995-02-23 | ||
| DE19506391A DE19506391B4 (de) | 1995-02-23 | 1995-02-23 | Verfahren zum Herstellen eines ein zahn- oder wellenförmiges Profil aufweisenden Getriebebauteils aus einer Blechplatine |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0728540A2 EP0728540A2 (de) | 1996-08-28 |
| EP0728540A3 EP0728540A3 (de) | 1997-08-27 |
| EP0728540B1 true EP0728540B1 (de) | 2000-06-14 |
Family
ID=7754881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96101769A Expired - Lifetime EP0728540B1 (de) | 1995-02-23 | 1996-02-07 | Werkzeug zur Blechumformung |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0728540B1 (de) |
| DE (2) | DE19506391B4 (de) |
| ES (1) | ES2146799T3 (de) |
Families Citing this family (7)
| 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 |
| RU2430803C1 (ru) * | 2010-05-13 | 2011-10-10 | Открытое акционерное общество Акционерная холдинговая компания "Всероссийский научно-исследовательский и проектно-конструкторский институт металлургического машиностроения имени академика Целикова" (ОАО АХК "ВНИИМЕТМАШ") | Устройство управления агрегата для производства гофростенок трансформаторов |
| 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)
| 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 |
-
1995
- 1995-02-23 DE DE19506391A patent/DE19506391B4/de not_active Expired - Lifetime
-
1996
- 1996-02-07 ES ES96101769T patent/ES2146799T3/es not_active Expired - Lifetime
- 1996-02-07 DE DE59605420T patent/DE59605420D1/de not_active Expired - Lifetime
- 1996-02-07 EP EP96101769A patent/EP0728540B1/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0728540A3 (de) | 1997-08-27 |
| DE59605420D1 (de) | 2000-07-20 |
| DE19506391A1 (de) | 1996-09-05 |
| EP0728540A2 (de) | 1996-08-28 |
| DE19506391B4 (de) | 2010-01-07 |
| ES2146799T3 (es) | 2000-08-16 |
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