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EP0724921B1 - Carter tubulaire, en particulier pour une pompe - Google Patents

Carter tubulaire, en particulier pour une pompe Download PDF

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Publication number
EP0724921B1
EP0724921B1 EP95710001A EP95710001A EP0724921B1 EP 0724921 B1 EP0724921 B1 EP 0724921B1 EP 95710001 A EP95710001 A EP 95710001A EP 95710001 A EP95710001 A EP 95710001A EP 0724921 B1 EP0724921 B1 EP 0724921B1
Authority
EP
European Patent Office
Prior art keywords
housing
hollow cylinder
wall
ironing
internal mandrel
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
EP95710001A
Other languages
German (de)
English (en)
Other versions
EP0724921A1 (fr
Inventor
Rudolf Rutten
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.)
Kortenbach and Rauh KG
Original Assignee
Kortenbach Verwaltungs- und Beteiligungsgesellschaft Mbh & 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 Kortenbach Verwaltungs- und Beteiligungsgesellschaft Mbh & Co filed Critical Kortenbach Verwaltungs- und Beteiligungsgesellschaft Mbh & Co
Priority to AT95710001T priority Critical patent/ATE185501T1/de
Priority to EP95710001A priority patent/EP0724921B1/fr
Priority to DE59507047T priority patent/DE59507047D1/de
Priority to JP7354529A priority patent/JPH08281343A/ja
Priority to CZ967A priority patent/CZ796A3/cs
Priority to CA 2166443 priority patent/CA2166443A1/fr
Publication of EP0724921A1 publication Critical patent/EP0724921A1/fr
Application granted granted Critical
Publication of EP0724921B1 publication Critical patent/EP0724921B1/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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20—Deep-drawing
    • B21D22/30—Deep-drawing to finish articles formed by deep-drawing
    • 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
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects

Definitions

  • the invention relates to a method for producing a tubular Housing for pumps, motors and the like, in particular Fuel pump housing, on the inner wall for tight mounting e.g. a bearing plate of a pump motor, the inside diameter of the Enlarging step with constant outer diameter is trained.
  • Pump housings of this type are made from welded, cut to length Pipe manufactured, with a subsequent machining a step is formed on both sides and the desired surface qualities and dimensions are manufactured. This is a big one Manufacturing costs connected, which in a significant way, the economy and marketability of such pump housing.
  • the invention is based on the object , while avoiding the disadvantages mentioned, of specifying a method with which an improved tubular housing for pumps, motors and the like, in particular fuel pumps, can be produced in a simple manner without machining.
  • the task is, based on the general procedure, solved according to the invention in that in a first Process stage from a metal blank by deep drawing or deep pressing in several steps a cup-shaped hollow body is generated that the Hollow body in a second process step on its free edge is expanded on the outside and the bottom of the pot is removed by one on both sides open hollow cylinder provide that in the extension an internal mandrel is used, the shape, dimensioning and surface of the chipless stage to be created is adjusted, and that the stage on the inner wall of the Hollow cylinder by ironing in several steps over the inner mandrel is produced and finally the inner mandrel is removed and the housing is cut to length.
  • the second open side of the Hollow cylinder expanded and a further gradation on the inner wall of the Hollow cylinder by ironing in several steps over the inner mandrel manufactured.
  • a sufficient one is just in the expansion area Amount of material provided via the subsequent ironing to the Gradation in the desired length and wall thickness without further processing to be able to produce, with a degree of deformation of about 50% becomes.
  • the extension is preferably V-shaped, but it is noted that rectangular widening is also possible in principle.
  • the deep-drawn part produced using the method according to the invention is a cylinder open on both sides, which is open at a predetermined distance from each Page has the gradation produced without cutting.
  • the outer diameter is reduced in the gradation range Wall thickness with an enlarged inner diameter compared to the central part of the housing. It is advantageously achieved that the shape and Positional tolerances are smaller, the roughness depths that can be achieved are smaller through the production a material solidification is achieved that Pump housing less sensitive to damage during handling especially in the galvanic aftertreatment or during transport, makes.
  • the tubular housing 1 of a fuel pump shown in FIGS. 1 to 3 of the drawing represents a hollow cylinder of circular cross-section which is open on both sides and has an identical outer diameter D A throughout.
  • the housing 1 consists of a central part 2, which merges on both sides into a gradation area 3 or 4, which is drawn in an enlarged representation in FIGS. 3 and 4 of the drawing.
  • the inner diameter D I of the central area increases in the gradation areas 3 and 4 to an average value D Z lying between D A and D I , the wall thickness in the gradation areas 3 and 4 correspondingly being reduced to approximately half the wall thickness of the central part 2 .
  • Figures 2 and 3 with the details Y and X in an enlarged view show the gradation areas 3 and 4 and particularly illustrate that the steps 5 provided adjacent to the open sides of the case 1 and 6 worked out at right angles from the inner wall of the housing 1 are, with an inner radius R 0.2max must be observed in order to be in the finished state at the levels 5, 6 adjacent and pressed end shields for Keep fuel pump parts liquid-tight without additional sealants.
  • transition edge to the central part 2 in one Angle of 30 ° is chamfered.
  • the manufacture of the housing 1 is carried out according to FIG. 4 of the drawing in different ways Procedural steps.
  • This is based on a metal blank 7, so a flat circular sheet metal part, from which by application a deep-drawn hollow body 8 as the forming technique is generated as shown in Fig. 4/1.
  • the deep drawing is in itself known way in such a way that by means of a preceding stamp and a drawing ring, the blank 7 is pulled and in this way a vessel is formed, whereby during the deep drawing the blank diameter - as shown in the drawing - steadily reduced from the initial diameter and reaches the punch diameter towards the end of the drawing process.
  • the Dragging is done in several steps, with this process being done by Fig. 4/2 is clarified.
  • the drawing is then shown in FIG. 4/3 the free edge of the pot-shaped hollow body 8 extends outwards (Antulpen), where in the preferred embodiment according to the drawing V-shape for the antulpung / extension 9 is selected. Then the Pot bottom 10 removed by punching around a sleeve 11 open on both sides 4/4 of the drawing.
  • the material thickness does not change on average and therefore the The surface of the exit blank 7 and the sleeve 11 are approximately the same size. Due to the deformation, the material has already solidified surrender.
  • the further processing now takes place in the forming process of deep-drawing in a further step, the sleeve 11, which is pulled forward in the stop, being used as the starting shape instead of the flat cut.
  • the aim here is to form stages 5 and 6 in a simple manner, the drawing part thereby being brought to its final length at the same time.
  • the process of deep drawing in continuous blow is known as such and is also referred to as ironing, which is preferably carried out in several steps.
  • An inner mandrel 12 is inserted into the antulpung 9 according to FIG. 4/5 of the drawing from below or the sleeve 11 is placed over such an inner mandrel.
  • This is adapted in shape, dimensioning and surface to the level 5 or 6 to be produced without cutting and thus has a pin 13 projecting into the sleeve 11 and a stamp part 14.
  • the pin 13 has an outer diameter which is matched to the inner diameter D I of the sleeve 11, while the stamp part 14 has a diameter which corresponds to the inner diameter D Z in the graded area of the finished housing 1.
  • the shape, dimensions and surface of the inner mandrel 12 are matched to the gradation areas 3 and 4 to be produced in the subsequent drawing process. With a reduction, not shown, the further forming is now carried out in several stages.
  • Fig. 4/6 shows the result.
  • the step 5 now formed on one side of the sleeve 11 can be seen.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (4)

  1. Procédé de fabrication d'un carter tubulaire pour pompes, moteurs et analogues, en particulier carter de pompe à carburant, dans la paroi intérieure duquel un décrochement (5 et, respectivement, 6) qui augmente le diamètre intérieur (D1) du carter (1) tout en conservant le diamètre extérieur (DA) inchangé est ménagé en vue du logement étanche, par exemple, d'un flasque de moteur de pompe, caractérisé en ce que, dans une première étape de procédé, un corps creux en forme de pot (8) est réalisé à partir d'un rond en métal (7) par emboutissage profond ou par pressage profond en plusieurs passes, en ce que, dans une seconde étape de procédé, le corps creux (8) est élargi vers l'extérieur (9) au niveau de son bord libre et le fond (10) du pot est supprimé pour obtenir un cylindre creux (11) ouvert des deux côtés, en ce que dans la partie élargie (9) est logé un mandrin intérieur (12) qui, en termes de forme, de dimensionnement et de surface, est adapté au décrochement (5) à réaliser sans enlèvement de copeaux, et en ce que le décrochement (5) est réalisé dans la paroi intérieure du cylindre creux (11) par étirage en plusieurs passes à l'aide du mandrin intérieur (12) et, enfin, le mandrin intérieur (12) est retiré et le carter (1) est éventuellement tronçonné.
  2. Procédé selon la revendication 1, caractérisé en ce que le second côté ouvert du cylindre creux (fourreau 11) est lui aussi élargi (15) et un second décrochement (6) est réalisé dans la paroi intérieure du cylindre creux par étirage en plusieurs passes à l'aide du mandrin intérieur (12).
  3. Procédé selon la revendication 1 et 2, caractérisé en ce que la quantité de matière disponible dans la zone des parties élargies (9 et, respectivement, 15) en vue de l'étirage ultérieur est exactement suffisante pour réaliser le décrochement (5 et, respectivement, 6) avec la longueur et l'épaisseur de paroi souhaitées sans usinage ultérieur, le degré de déformation adopté étant d'environ 50 %.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que la partie élargie (9 et, respectivement, 15) est conformée en V.
EP95710001A 1995-01-03 1995-01-03 Carter tubulaire, en particulier pour une pompe Expired - Lifetime EP0724921B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
AT95710001T ATE185501T1 (de) 1995-01-03 1995-01-03 Rohrförmiges gehäuse insbesondere für eine kraftstoffpumpe
EP95710001A EP0724921B1 (fr) 1995-01-03 1995-01-03 Carter tubulaire, en particulier pour une pompe
DE59507047T DE59507047D1 (de) 1995-01-03 1995-01-03 Rohrförmiges Gehäuse insbesondere für eine Kraftstoffpumpe
JP7354529A JPH08281343A (ja) 1995-01-03 1995-12-21 とくに燃料ポンプ用の管状ハウジング
CZ967A CZ796A3 (en) 1995-01-03 1996-01-02 Tubular cabinet and process for producing thereof
CA 2166443 CA2166443A1 (fr) 1995-01-03 1996-01-02 Habillage tubulaire, notamment pour une pompe a carburant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP95710001A EP0724921B1 (fr) 1995-01-03 1995-01-03 Carter tubulaire, en particulier pour une pompe

Publications (2)

Publication Number Publication Date
EP0724921A1 EP0724921A1 (fr) 1996-08-07
EP0724921B1 true EP0724921B1 (fr) 1999-10-13

Family

ID=8221681

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95710001A Expired - Lifetime EP0724921B1 (fr) 1995-01-03 1995-01-03 Carter tubulaire, en particulier pour une pompe

Country Status (3)

Country Link
EP (1) EP0724921B1 (fr)
AT (1) ATE185501T1 (fr)
DE (1) DE59507047D1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19732792A1 (de) * 1997-07-30 1999-02-04 Bosch Gmbh Robert Kolbenpumpe
DE102019127797B4 (de) * 2019-10-15 2021-09-23 Progress-Werk Oberkirch Ag Verfahren und Vorrichtung zum Herstellen eines Gehäuses

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE551389C (de) * 1932-05-30 Carlos Catherine Guillermet Vertikalfoerderpumpe, bei der die einzelnen Steigrohrteile durch Muffen verbunden sind
US3878802A (en) * 1972-07-25 1975-04-22 Bosch Gmbh Robert Motor housing and method of making the same
GB1411713A (en) * 1972-01-24 1975-10-29 Bosch Gmbh Robert Manufacture of hollow cylinders
JPS56150952A (en) * 1980-04-23 1981-11-21 Hitachi Ltd Manufacture of outer frame for motor
JPS57166862A (en) * 1981-04-03 1982-10-14 Mitsubishi Electric Corp Manufacture of housing for rotary electric machine
JPH0466798A (ja) * 1990-07-06 1992-03-03 Honda Motor Co Ltd 燃料ポンプ装置
JPH04203288A (ja) * 1990-11-29 1992-07-23 Keihin Seiki Mfg Co Ltd 車輌用燃料ポンプ
DE4106148A1 (de) * 1991-02-27 1992-09-03 Progress Werk Oberkirch Ag Verfahren zum herstellen eines lagersitzes mit hoher massgenauigkeit mittels der tiefziehtechnik
EP0530786A2 (fr) * 1991-09-06 1993-03-10 Progress-Werk Oberkirch Aktiengesellschaft Chemise d'entrefer pour un moteur à tube d'entrefer et aussi méthode de fabrication d'une chemise d'entrefer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3428010A (en) * 1967-02-03 1969-02-18 Continental Can Co Method of making a metallic can and cover
DE3105538A1 (de) * 1980-03-13 1982-08-26 Sexton Can Co., Inc., 02149 Everett, Mass. Metallbehaelter
US4522049A (en) * 1983-03-14 1985-06-11 Aluminum Company Of America Aluminum alloy food can body and method for making same
NL8301069A (nl) * 1983-03-28 1984-10-16 Hoogovens Groep Bv Driedelige metalen verpakkingsbus, halfprodukt voor de vervaardiging van deze bus, en een werkwijze voor de vervaardiging van metalen verpakkingsbussen.

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE551389C (de) * 1932-05-30 Carlos Catherine Guillermet Vertikalfoerderpumpe, bei der die einzelnen Steigrohrteile durch Muffen verbunden sind
GB1411713A (en) * 1972-01-24 1975-10-29 Bosch Gmbh Robert Manufacture of hollow cylinders
US3878802A (en) * 1972-07-25 1975-04-22 Bosch Gmbh Robert Motor housing and method of making the same
JPS56150952A (en) * 1980-04-23 1981-11-21 Hitachi Ltd Manufacture of outer frame for motor
JPS57166862A (en) * 1981-04-03 1982-10-14 Mitsubishi Electric Corp Manufacture of housing for rotary electric machine
JPH0466798A (ja) * 1990-07-06 1992-03-03 Honda Motor Co Ltd 燃料ポンプ装置
JPH04203288A (ja) * 1990-11-29 1992-07-23 Keihin Seiki Mfg Co Ltd 車輌用燃料ポンプ
DE4106148A1 (de) * 1991-02-27 1992-09-03 Progress Werk Oberkirch Ag Verfahren zum herstellen eines lagersitzes mit hoher massgenauigkeit mittels der tiefziehtechnik
EP0530786A2 (fr) * 1991-09-06 1993-03-10 Progress-Werk Oberkirch Aktiengesellschaft Chemise d'entrefer pour un moteur à tube d'entrefer et aussi méthode de fabrication d'une chemise d'entrefer

Also Published As

Publication number Publication date
EP0724921A1 (fr) 1996-08-07
DE59507047D1 (de) 1999-11-18
ATE185501T1 (de) 1999-10-15

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