DE3422799C1 - Process for deep drawing a tub-like sheet metal body and the use of the sheet metal body - Google Patents

Process for deep drawing a tub-like sheet metal body and the use of the sheet metal body

Info

Publication number
DE3422799C1
DE3422799C1 DE3422799A DE3422799A DE3422799C1 DE 3422799 C1 DE3422799 C1 DE 3422799C1 DE 3422799 A DE3422799 A DE 3422799A DE 3422799 A DE3422799 A DE 3422799A DE 3422799 C1 DE3422799 C1 DE 3422799C1
Authority
DE
Germany
Prior art keywords
sheet metal
metal body
side walls
walls
cambered
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
Application number
DE3422799A
Other languages
German (de)
Inventor
Wolfgang 5630 Remscheid Rötgers
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.)
Vaillant GmbH
Original Assignee
Joh Vaillant GmbH and Co
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 Joh Vaillant GmbH and Co filed Critical Joh Vaillant GmbH and Co
Priority to DE3422799A priority Critical patent/DE3422799C1/en
Application granted granted Critical
Publication of DE3422799C1 publication Critical patent/DE3422799C1/en
Priority to DE19853519946 priority patent/DE3519946A1/en
Priority to DE8585106907T priority patent/DE3574682D1/en
Priority to AT85106907T priority patent/ATE48550T1/en
Priority to EP85106907A priority patent/EP0165528B1/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00Making hollow objects
    • B21D51/16Making hollow objects characterised by the use of the objects
    • B21D51/26Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
    • B21D51/2646Of particular non cylindrical shape, e.g. conical, rectangular, polygonal, bulged

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Packaging For Recording Disks (AREA)
  • Magnetic Record Carriers (AREA)
  • Laminated Bodies (AREA)

Abstract

1. A process of deep drawing a tublike sheet metal body having a rectangular bottom and side walls extending almost at right angles to that bottom, wherein the side walls (7) are drawn first while the bottom (3) is crowned into the cavity, the edges are subsequently trimmed and the bottom is subsequently crowned in the opposite direction.

Claims (2)

1 exakt senkrecht, gleichfalls senkrecht zum Randbereich Patentansprüche: des Bodens 3 angeordnet. Der Unterschied ist erkennbar.1 exactly perpendicular, also perpendicular to the edge area Claims: of the bottom 3 arranged. The difference can be seen. 1. Verfahren zum Tiefziehen eines wannenartigen Fig. 1 zeigt das Bauteil, wie es im herkömmlichen Blechkörpers mit einem prismatischen Boden und 5 Verfahren gefertigt wurde, das heißt ohne Bombieren, hierzu senkrecht stehenden Seiten wänden, da- sondern in einem normalen Tief ziehwerkzeug, dessen durch gekennzeichnet, daß beim Ziehen Stempel und Matrize so ausgeführt sind, daß sich eigentder Seitenwände (7) der Boden (3) bombiert und lieh der fertige rechteckige Blechkörper ergeben müßte, nach dem Beschneiden entgegengesetzt bombiert Durch die bereits eingangs geschilderten Auffederungswird. 10 erscheinungen biegen sich aber die Wände 7 durch, so1. Method for deep-drawing a tub-like Fig. 1 shows the component as it is in the conventional Sheet metal body was manufactured with a prismatic bottom and 5 processes, i.e. without crowning, walls that are perpendicular to this, but in a normal deep-drawing tool whose characterized in that the punch and die are designed so that the actual Side walls (7) of the bottom (3) cambered and lent the finished rectangular sheet metal body would have to result after trimming, it is cambered in the opposite direction. 10 phenomena but the walls 7 bend, see above 2. Verwendung des Blechkörpers nach Anspruch daß sie allseits ballig sind. Die Anwendung des erfin-1, als Gehäuseteil einer brennstoffbeheizten Wärme- dungsgemäßen Verfahrens ergibt zwar einen etwas quelle. bombierten Boden 3, aber exakt plane und in einem2. Use of the sheet metal body according to claim that they are convex on all sides. The application of the in-1, as a housing part of a fuel-heated heating method according to the invention, something results source. cambered bottom 3, but exactly flat and in one Winkel von 90° zueinander und zum Boden stehendeAngle of 90 ° to each other and to the ground 15 Seitenwände 7. Insbesondere die plane Ausbildung der15 side walls 7. In particular the flat design of the Wände 7 ergibt ein ästhetisch gutes Aussehen des Blechteils, wenn es ein Außenteil eines Gehäuses bildet.Walls 7 give the sheet metal part an aesthetically good appearance when it forms an outer part of a housing. Die vorliegende Erfindung bezieht sich auf ein Ver- Insbesondere wenn die so hergestellten BlechkörperThe present invention relates to a particularly when the sheet metal body produced in this way fahren zum Tiefziehen eines wannenartigen Blechkör- emailliert werden, hat das nachher fertige Gehäuse des pers und auf die Verwendung dieses Blechkörpers. 20 Kessels oder Umlaufwasserheizers ein entscheidenddrive to deep-drawing a tub-like sheet metal body to be enamelled, the subsequently finished housing of the pers and on the use of this sheet metal body. 20 boiler or circulation water heater is crucial Wannenartige Blechkörper werden insbesondere bei besseres Bild und damit bessere Verkaufsmöglichkeiten.Tub-like sheet metal bodies are particularly good with a better picture and thus better sales opportunities. brennstoffbeheizten Wärmequellen eingesetzt, und :fuel-heated heat sources are used, and: zwar als Gehäuseteile für Kessel, Umlauf- oder Durch- Hierzu 3 Blatt Zeichnungenas housing parts for boilers, circulating or through-To this 3 sheet drawings laufwasserheizer. Diese Blechkörper werden tiefgezo- — : running water heater. These sheet metal bodies are deep drawn -: gen, wobei sich eine Art Hohlquader ergibt, dem der Deckel fehlt. Stellt man die Seitenwände des Blechkörpers mit einem exakt rechte Winkel aufweisenden Ziehwerkzeug her, so wird man bemerken, daß die Seitenwände nach außen auffedern, also Rundungen bilden. Insbesondere wenn diese Rundungen Teile von planen Seitenflächen ergeben, ergibt sich ein störendes Bild.gen, which results in a kind of hollow cuboid that lacks the lid. If you put the side walls of the sheet metal body with a pulling tool that is exactly at right angles, it will be noted that the side walls spring outwards, i.e. form curves. Especially if these curves are planar parts Side surfaces result, the result is a disturbing picture. Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Verfahren anzugeben, um gerade und plane Seitenwände zu bekommen.The present invention is based on the object of specifying a method for making straight and plane To get sidewalls. Die Lösung der Aufgabe liegt in den kennzeichnenden Merkmalen des Hauptanspruchs.The solution to the problem lies in the characterizing features of the main claim. Die Erfindung wird nachstehend anhand eines Ausführungsbeispiels beschrieben. Es zeigtThe invention is described below using an exemplary embodiment. It shows F i g. 1 ein gemäß dem Stand der Technik hergestelltes Bauteil,F i g. 1 a component manufactured according to the state of the art, Fig.2 bis 4 die Verfahrensweise zum Erzielen des fertigen Bauteils, undFig. 2 to 4 the procedure for achieving the finished component, and F i g. 5 das fertige, nach dem erfindungsgemäßen Verfahren hergestellte Bauteil.F i g. 5 the finished, according to the method according to the invention manufactured component. Zum Fertigen einer Tür eines Umlaufwasserheizers, dessen Boden 3 die Frontseite und dessen Seitenwände 7 Teile der Seiten beziehungsweise der Oberseite des Gehäuses der brennstoffbeheizten Wärmequelle sind, wird ein planes Stahlblech verwendet, das von einer Rolle als Streifen abgezogen wird. Aus dem Streifen werden einzelne Blechtafeln abgeschnitten. Die ebenen Tafeln werden gemäß F i g. 2 in ein Ziehwerkzeug gelegt und tiefgezogen, und zwar so, daß der Boden 3 negativ bombiert wird, so daß sich also eine Einziehung 4 in den Hohlraum 5 des Blechkörpers ergibt. Das Ziehwerkzeug ist weiter so bemessen, daß der Winkel 6 zwischen den Seitenwänden 7 und dem Boden 3 größer als 90° ist.For manufacturing a door of a circulating water heater, the bottom 3 of which is the front and the side walls 7 are parts of the sides or the top of the housing of the fuel-heated heat source, a flat steel sheet is used, which is pulled off a roll as a strip. From the strip individual metal sheets are cut off. The flat panels are shown in FIG. 2 placed in a drawing tool and deep-drawn, in such a way that the bottom 3 is cambered negatively, so that there is a retraction 4 results in the cavity 5 of the sheet metal body. The drawing tool is also dimensioned so that the angle 6 between the side walls 7 and the bottom 3 is greater than 90 °. Beim Ziehvorgang entstehen überstehende Ränder 8, die sich rings um den gesamten Blechkörper erstrecken. Beim nächstfolgenden Arbeitsgang werden gemäß F i g. 3 die Seitenränder 8 abgeschnitten, und anschließend wird der Boden 3 zurückbombiert. Dies geschieht unter Druckfedern, so daß nunmehr der Boden 3 nach außen gewölbt ist Durch dieses Zurückfedern stellen sich die Seiten 7 so ein, daß der Winkel 6 ziemlich genau 90° beträgt. Die Wände 7 sind jeweils bezüglich der gegenüberliegenden parallel und zu den benachbartenDuring the drawing process, protruding edges 8 are created, which extend around the entire sheet metal body. In the next working step, according to FIG. 3 cut off the side edges 8, and then the bottom 3 is cambered back. This is done under compression springs, so that now the bottom 3 after is arched on the outside By this springing back, the sides 7 adjust themselves so that the angle 6 is fairly accurate 90 °. The walls 7 are each parallel to the opposite one and to the adjacent one
DE3422799A 1984-06-16 1984-06-16 Process for deep drawing a tub-like sheet metal body and the use of the sheet metal body Expired DE3422799C1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE3422799A DE3422799C1 (en) 1984-06-16 1984-06-16 Process for deep drawing a tub-like sheet metal body and the use of the sheet metal body
DE19853519946 DE3519946A1 (en) 1984-06-16 1985-06-04 Method for deep-drawing a trough-like sheet-metal body and the use of this sheet-metal body
DE8585106907T DE3574682D1 (en) 1984-06-16 1985-06-04 METHOD FOR DRAWING A TUB-LIKE SHEET BODY AND TUB-LIKE HOUSING PART PRODUCED BY THE METHOD.
AT85106907T ATE48550T1 (en) 1984-06-16 1985-06-04 METHOD OF DRAWING A PAN-LIKE SHEET METAL BODY AND PAN-LIKE HOUSING PART MADE BY THE METHOD.
EP85106907A EP0165528B1 (en) 1984-06-16 1985-06-04 Method of deep-drawing trough-shaped sheet metal articles, and a trough-shaped part of a housing made thereby

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3422799A DE3422799C1 (en) 1984-06-16 1984-06-16 Process for deep drawing a tub-like sheet metal body and the use of the sheet metal body

Publications (1)

Publication Number Publication Date
DE3422799C1 true DE3422799C1 (en) 1985-04-18

Family

ID=6238764

Family Applications (2)

Application Number Title Priority Date Filing Date
DE3422799A Expired DE3422799C1 (en) 1984-06-16 1984-06-16 Process for deep drawing a tub-like sheet metal body and the use of the sheet metal body
DE8585106907T Expired - Fee Related DE3574682D1 (en) 1984-06-16 1985-06-04 METHOD FOR DRAWING A TUB-LIKE SHEET BODY AND TUB-LIKE HOUSING PART PRODUCED BY THE METHOD.

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE8585106907T Expired - Fee Related DE3574682D1 (en) 1984-06-16 1985-06-04 METHOD FOR DRAWING A TUB-LIKE SHEET BODY AND TUB-LIKE HOUSING PART PRODUCED BY THE METHOD.

Country Status (3)

Country Link
EP (1) EP0165528B1 (en)
AT (1) ATE48550T1 (en)
DE (2) DE3422799C1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE414127C (en) * 1921-12-08 1925-10-24 Wilhelm Soehnge Process for shaping deep hollow bodies
US3918377A (en) * 1970-11-21 1975-11-11 Blanc & Co Article of manufacture and manufacturing of such article
DE2261955C3 (en) * 1972-12-18 1980-03-27 Smg Sueddeutsche Maschinenbau-Gesellschaft Mbh, 6833 Waghaeusel Device for the hydromechanical pull-up of sink units
CH583071A5 (en) * 1974-03-07 1976-12-31 Luwa Ag

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NICHTS-ERMITTELT *

Also Published As

Publication number Publication date
DE3574682D1 (en) 1990-01-18
EP0165528A3 (en) 1987-09-30
EP0165528A2 (en) 1985-12-27
ATE48550T1 (en) 1989-12-15
EP0165528B1 (en) 1989-12-13

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Legal Events

Date Code Title Description
8100 Publication of patent without earlier publication of application
D1 Grant (no unexamined application published) patent law 81
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee