EP2050524B1 - Method for producing slits in the bottom wall of a pot-shaped sleeve assembly - Google Patents

Method for producing slits in the bottom wall of a pot-shaped sleeve assembly Download PDF

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Publication number
EP2050524B1
EP2050524B1 EP08013394A EP08013394A EP2050524B1 EP 2050524 B1 EP2050524 B1 EP 2050524B1 EP 08013394 A EP08013394 A EP 08013394A EP 08013394 A EP08013394 A EP 08013394A EP 2050524 B1 EP2050524 B1 EP 2050524B1
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EP
European Patent Office
Prior art keywords
sleeve member
punching
bottom wall
inner sleeve
outer sleeve
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.)
Not-in-force
Application number
EP08013394A
Other languages
German (de)
French (fr)
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EP2050524A2 (en
EP2050524A3 (en
Inventor
Frank Stark
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.)
Saxonia AG
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Saxonia AG
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Publication date
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Publication of EP2050524A2 publication Critical patent/EP2050524A2/en
Publication of EP2050524A3 publication Critical patent/EP2050524A3/en
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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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/28—Perforating, i.e. punching holes in tubes or other hollow bodies
    • 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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/32—Perforating, i.e. punching holes in other articles of special shape
    • 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
    • B21D53/10—Making other particular articles parts of bearings; sleeves; valve seats or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting

Definitions

  • the present invention relates to a method for producing slots in the bottom wall of a sleeve assembly according to the preamble of claim 1.
  • cup-shaped sleeve arrangements are known. For example, they are used in conjunction with injectors.
  • a cup-shaped sleeve arrangement in the form of a cylindrical sleeve part, seen in the axial direction on its one side has a perpendicular to the longitudinal axis of the sleeve part extending bottom wall having a central opening.
  • the opening is surrounding another, arranged in the longitudinal direction extending cylindrical sleeve part.
  • the illustrated sleeve arrangement is a part made of a solid, rod-shaped material by turning, into which said slots are introduced by milling.
  • the document DE-A-19742781 shows a method for making slots in the bottom wall of a sleeve assembly.
  • the object of the present invention is to provide a method for the production of sleeve assemblies of the type mentioned, by which a much more cost-effective production of the sleeve assemblies is made possible.
  • the essential advantage of the present invention is that for the first time a method has been developed by which the slots in the cup-shaped sleeve arrangement can be produced by a special punching method. In this way, precise sleeve assemblies can be produced much faster and at lower cost.
  • the present method is suitable for mass production.
  • the present sleeve arrangement is designated 1.
  • the sleeve arrangement 1 essentially comprises an outer sleeve part 2, a bottom part or a bottom wall 3 and an inner sleeve part 4.
  • the outer sleeve part 2 is preferably cylindrical and extends, preferably starting from the edge of the bottom wall 3, to one side of the bottom wall 3.
  • the inner sleeve part 4 extends to the one side opposite side of the bottom wall 3 and is also cylindrical.
  • the inner sleeve part 4 surrounds the edge region of an opening 5, which is arranged centrally in the bottom part 3.
  • the opening 5, the inner sleeve part 4 and the outer sleeve part 2 are arranged concentrically with each other.
  • the bottom wall 3 extends perpendicular to the longitudinal axis of the sleeve assembly. 1
  • the sleeve arrangement 1 explained above is preferably a rotary part which is known per se and is produced from a rod-shaped raw material.
  • At least one extending in the circumferential direction slot 6 is arranged, which, like the FIGS. 5 and 6 show, seen in the radial direction, with its inner edge adjacent to the outer circumference of the inner sleeve part 4 and with its outer edge adjacent to the inner circumference of the outer sleeve part 2.
  • a plurality of slots in particular radially opposite two slots, namely the slot 6 and another slot 7 are provided, wherein the inner edge of the slot 7 also to the outer periphery of the inner sleeve part 4 and the outer edge of the slot 7 also adjoin the inner periphery of the outer sleeve part 2, as the FIGS. 5 and 6 demonstrate.
  • the slots 6 and 7 preferably have different lengths in the circumferential direction.
  • the punching device 10 is for carrying out the first punching step in which according to the Figures 1 and 2 each a first, adjacent to the outer sleeve part 4 portion 6 'and 7' are punched out of the bottom wall 3, a cutting plate 11, a centering plate 12 and a guide plate 13, and a punch member 14 for punching the portion 6 'and a stamp part 15 for punching the partial area 7 '.
  • the stamp parts 14 and 15 can be to a Stamp unit be summarized. For alignment, the cutting plate 11 and the centering plate 12 openings 8 and 9, in the alignment in a known manner (not shown) are introduced.
  • the centering plate 12 is dimensioned on the inside such that the outer surface of the outer sleeve part 2 bears against the inner surface of an opening 18 of the centering plate 12.
  • the punch parts 14 and 15 comprehensive stamp unit is insertable, such that in the execution of the first punching operation in the in the FIG. 3 illustrated manner, the punch members 14 and 15 adjacent to the inner wall of the outer sleeve member 2 punch out the portions 6 'and 7' in the bottom wall 3, wherein it is important that the entire bottom wall 3 with its surrounding the inner sleeve part 4 surface on the surface 17 of the cutting plate 11 rests flat and is therefore supported. Because of this support on both sides of the personallystanzenden portions 6 'and 7' deformations of the sleeve assembly 1 are avoided in the execution of the first punching step.
  • the punched out during the punching of the partial regions 6 'and 7' and ejected through openings 50 from the cutting plate 16 material parts are in the Figures 1 and 2 denoted by 26 and 27, respectively.
  • FIGS. 3 and 4 a further punching device 30 for punching out further portions 6 '' and 7 '' and for producing the final shape of the slots 6 and 7 explained in more detail.
  • the further punching device 30 is for carrying out the second punching step, according to which FIGS. 5 and 6 each a second, adjacent to the outer circumference of the inner sleeve part 4 portion 6 '' or 7 '' are punched out of the bottom wall 3, a cutting plate 31, a centering plate 32 and a guide plate 33, and a punch member 34 for punching the portion 6th
  • the punch parts 34 and 35 can also be combined to form a punch unit.
  • the guide plate 33 and the centering plate 32 have openings 36 and 38, respectively, into which alignment pins (in a known manner) are inserted. not shown) are introduced.
  • the cutting plate 31 is preferably designed in this way. That it has a neck portion 40, on which the outer sleeve part 2 can be placed such that the bottom wall 3 of the sleeve assembly 1 rests on the surface 41 of the cutting plate 31 and the end face of the neck region (40).
  • the centering plate 32 is dimensioned on the inside such that the outer surface of the outer sleeve part 2 bears against the inner surface of an opening 38 of the centering plate 32.
  • a core part 43 engaging in a central bore 42 of the cutting plate 31 or the neck region 40 is dimensioned so that the inner circumference of the inner sleeve part 4 bears against the outer circumference of the core part 43.
  • the punch parts 34 and 35 comprehensive stamp unit is insertable, such that in the execution of the second punching operation in the in the FIG. 7 shown stamping the punch parts 34 and 35 adjacent to the outer periphery of the inner sleeve part 4, the portions 6 "and 7" in the bottom wall 3, wherein it is important that while the entire existing area of the bottom wall 3 with its inner sleeve part surrounding surface on said surface 41 of the neck portion 40 of the cutting plate 31 rests flat and is therefore supported. Because of this constraint deformations of the sleeve assembly 1 in the region of the inner sleeve member 4 are avoided in the execution of the first punching step.
  • the inner surface of the outer sleeve member 2 is held secured against deformation on the outer surface of the neck portion 40.
  • the punched out during the punching of the portions 6 "and 7" and ejected through openings 49 from the cutting plate 31 material parts are in the FIGS. 5 to 7 denoted by 26 'and 27', respectively.
  • a transfer device not shown, is arranged, which removes the sleeve assemblies after the first punching step from the punching device 10 and transmits into the second punching device 30 for performing the second punching step.

Abstract

The method involves arranging slits (6, 7) in a bottom wall (3) between circumferences of outer and inner sleeve parts (2, 4) of a cup-shaped sleeve assembly (1), where the slits are produced by a punching process. A portion of the slit (6) is punched-out in a punching step, where the slits run along a circumferential direction. The portion of the slit (6) is adjacent to the circumference of the outer sleeve part. A portion of the slit (7) is punched-out in another punching step, where the portion of the slit (7) is adjacent to the circumference of the inner sleeve part.

Description

Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung von Schlitzen in der Bodenwand einer Hülsenanordnung nach dem Oberbegriff des Patentanspruches 1.The present invention relates to a method for producing slots in the bottom wall of a sleeve assembly according to the preamble of claim 1.

Derartige napfförmige Hülsenanordnungen sind bekannt. Beispielsweise werden sie im Zusammenhang mit Einspritzdüsen verwendet. Im Wesentlichen weist eine solche napfförmige Hülsenanordnung die Form eines zylindrischen Hülsenteiles auf, dass in axialer Richtung gesehen an seiner einen Seite eine sich senkrecht zur Längsachse des Hülsenteiles erstreckende Bodenwand mit einer mittigen Öffnung besitzt. An die dem zylindrischen Hülsenteil abgewandte Seite der Bodenwand ist die Öffnung umgebend ein weiteres, sich in der Längsrichtung erstreckendes zylindrisches Hülsenteil angeordnet. In der Bodenwand sind sich radial gegenüberliegend zwei in Umfangsrichtung verlaufende Schlitze unterschiedlicher Längen zwischen dem Radius des äußeren Umfanges des weiteren Hülsenteiles und dem Radius des inneren Umfanges des Hülsenteiles angeordnet. Diese Schlitze dienen zur Kraftstoffführung und Steuerung in der Einspritzdüse. Üblicherweise handelt es sich bei der erläuterten Hülsenanordnung um ein aus einem massiven, stabförmigen Material durch Drehen hergestelltes Teil, in das die genannten Schlitze durch Fräsen eingebracht werden.Such cup-shaped sleeve arrangements are known. For example, they are used in conjunction with injectors. In essence, such a cup-shaped sleeve arrangement in the form of a cylindrical sleeve part, seen in the axial direction on its one side has a perpendicular to the longitudinal axis of the sleeve part extending bottom wall having a central opening. At the side facing away from the cylindrical sleeve part side of the bottom wall, the opening is surrounding another, arranged in the longitudinal direction extending cylindrical sleeve part. In the bottom wall are arranged radially opposite two circumferentially extending slots of different lengths between the radius of the outer circumference of the further sleeve part and the radius of the inner circumference of the sleeve part. These slots serve for fuel delivery and control in the injector. Usually, the illustrated sleeve arrangement is a part made of a solid, rod-shaped material by turning, into which said slots are introduced by milling.

Ein Problem besteht dabei jedoch darin, dass die Herstellung der Schlitze durch Fräsen äußerst zeitaufwändig und daher kostspielig ist.One problem, however, is that the production of the slots by milling is extremely time consuming and therefore expensive.

Das Dokument DE-A-19742781 zeigt ein Verfahren zur Herstellung von Schlitzen in der Bodenwand einer Hülsenanordnung.The document DE-A-19742781 shows a method for making slots in the bottom wall of a sleeve assembly.

Die Aufgabe der vorliegenden Erfindung besteht daher darin, ein Verfahren zur Herstellung von Hülsenanordnungen der genannten Art zu schaffen, durch das eine wesentlich kostengünstigere Herstellung der Hülsenanordnungen ermöglicht wird.The object of the present invention is to provide a method for the production of sleeve assemblies of the type mentioned, by which a much more cost-effective production of the sleeve assemblies is made possible.

Diese Aufgabe wird durch ein Verfahren mit den Merkmalen des Patentanspruches 1 gelöst.This object is achieved by a method having the features of claim 1.

Der wesentliche Vorteil der vorliegenden Erfindung besteht darin, dass erstmals ein Verfahren entwickelt wurde, durch das die Schlitze in der napfförmigen Hülsenanordnung durch ein spezielles Stanzverfahren herstellbar sind. Auf diese Weise können präzise Hülsenanordnungen wesentlich schneller und kostengünstiger produziert werden. Vorteilhafterweise eignet sich das vorliegende Verfahren zur Massenproduktion.The essential advantage of the present invention is that for the first time a method has been developed by which the slots in the cup-shaped sleeve arrangement can be produced by a special punching method. In this way, precise sleeve assemblies can be produced much faster and at lower cost. Advantageously, the present method is suitable for mass production.

Im folgenden werden die Erfindung und deren Ausgestaltungen im Zusammenhang mit den Figuren näher erläutert. Es zeigen:

  • Figur 1 in schematischer Darstellung das hülsenförmige Drehteil, aus dem in einem ersten Stanzschritt an das äußere Hülsenteil angrenzende Teilschlitze aus der Bodenwand ausgestanzt worden sind;
  • Figur 2 eine Ansicht des hülsenförmigen Drehteiles der
  • Figur 1 von der Seite des inneren Hülsenteiles her gesehen;
  • Figur 3 einen Schnitt durch die Stanzvorrichtung einer ersten Stanzstation zur Ausführung des ersten Stanzschrittes;
  • Figur 4 eine Ansicht entlang der Linie IV-IV der Figur 1;
  • Figur 5 eine perspektivische Ansicht der fertig gestellten Hülsenanordnung, nachdem in einem zweiten Stanzschritt die Schlitze auf ihre Endform in radialer Richtung verbreitert wurden;
  • Figur 6 eine Ansicht der Hülsenanordnung der Figur 5 von der Seite des inneren Hülsenteiles her gesehen;
  • Figur 7 einen Schnitt durch eine zweite Stanzvorrichtung einer zweiten Stanzstation zur Ausführung des zweiten Stanzschrittes; und
  • Figur 8 eine Ansicht entlang der Linie VIII-VIII der Figur 7.
In the following the invention and its embodiments in connection with the figures will be explained in more detail. Show it:
  • FIG. 1 in a schematic representation of the sleeve-shaped rotary member, from which in a first punching step adjacent to the outer sleeve part part slots have been punched out of the bottom wall;
  • FIG. 2 a view of the sleeve-shaped rotary part of
  • FIG. 1 seen from the side of the inner sleeve part;
  • FIG. 3 a section through the punching device of a first punching station for performing the first punching step;
  • FIG. 4 a view along the line IV-IV of FIG. 1 ;
  • FIG. 5 a perspective view of the finished sleeve assembly, after in a second punching step, the slots were widened to its final shape in the radial direction;
  • FIG. 6 a view of the sleeve arrangement of FIG. 5 seen from the side of the inner sleeve part;
  • FIG. 7 a section through a second punching device of a second punching station for carrying out the second punching step; and
  • FIG. 8 a view along the line VIII-VIII of FIG. 7 ,

Zu der Erfindung führten die folgenden Überlegungen. Im Zusammenhang mit der bekannten Herstellung der Schlitze in der Bodenwand der vorliegenden Hülsenanordnung durch Fräsen wurde wegen der eingangs erwähnten Nachteile erstmals der Gedanke gefasst, die Schlitze durch Stanzen herzustellen. Ein Problem besteht dabei jedoch darin, dass das Stanzen der Schlitze äußerst problematisch ist, weil in der entsprechenden Stanzvorrichtung beim Ausstanzen der Schlitze Schädigungen wie z. B. Verformungen der Bodenwand und der Hülsenteile wegen der mangelnden Auflage auf der Schneidkante der Stanzvorrichtungen unvermeidlich sind. Im Rahmen der vorliegenden Erfindung wurde jedoch erstmals erkannt, dass das Problem der mangelnden Auflage dadurch vermieden werden kann, dass die Schlitze nicht in einem einzigen, sondern in zwei aufeinander folgenden speziellen Stanzschritten hergestellt werden, wobei diese Stanzschritte von unterschiedlichen Seiten der Bodenwand her erfolgen. Bei jedem Stanzschritt wird dabei ein vorbestimmter, an das äußere Hülsenteil bzw. an das innere Hülsenteil angrenzender Teilbereich der Schlitze ausgestanzt. Bei dieser Vorgehensweise kann bei jedem Stanzschritt die erforderliche Auflage des Bodenteiles auf der Schneidplatte der jeweiligen Stanzvorrichtung erreicht werden, sodass die Hülsenanordnungen mit hoher Präzision ohne Verformungen herstellbar sind. Gleichzeitig können die Herstellungskosten wegen der wesentlich einfacher durchführbaren Stanzprozesse im Vergleich zur Herstellung durch Fräsen erheblich gesenkt werden.The following considerations led to the invention. In connection with the known production of the slots in the bottom wall of the present sleeve arrangement by milling, it was for the first time conceived the thought of producing the slots by punching because of the disadvantages mentioned at the outset. A problem, however, is that the punching of the slots is extremely problematic, because in the corresponding punching device when punching out the slots damage such. B. deformations of the bottom wall and the sleeve parts because of the lack of support on the Cutting edge of the punching devices are unavoidable. In the context of the present invention, however, it has been recognized for the first time that the problem of lack of support can be avoided by making the slots not in a single but in two successive special punching steps, these punching steps taking place from different sides of the bottom wall. In each punching step, a predetermined, adjacent to the outer sleeve part or to the inner sleeve part portion of the slots is punched out. In this procedure, the required support of the bottom part can be achieved on the cutting plate of the respective punching device at each punching step, so that the sleeve assemblies can be produced with high precision without deformation. At the same time, the manufacturing costs can be significantly reduced because of the much easier to carry out punching processes compared to the production by milling.

In der Figur 1 ist die vorliegende Hülsenanordnung mit 1 bezeichnet. Die Hülsenanordnung 1 umfasst im Wesentlichen ein äußeres Hülsenteil 2, ein Bodenteil bzw. eine Bodenwand 3 und ein inneres Hülsenteil 4. Das äußere Hülsenteil 2 ist vorzugsweise zylindrisch ausgebildet und erstreckt sich, vorzugsweise ausgehend vom Rand der Bodenwand 3 zu einer Seite der Bodenwand 3. Das innere Hülsenteil 4 erstreckt sich zu der der einen Seite gegenüberliegenden Seite der Bodenwand 3 und ist ebenfalls zylindrisch ausgebildet. Das innere Hülsenteil 4 umgibt den Randbereich einer Öffnung 5, die mittig in dem Bodenteil 3 angeordnet ist. Die Öffnung 5, das innere Hülsenteil 4 und das äußere Hülsenteil 2 sind konzentrisch zueinander angeordnet. Die Bodenwand 3 erstreckt sich senkrecht zur Längsachse der Hülsenanordnung 1.In the FIG. 1 the present sleeve arrangement is designated 1. The sleeve arrangement 1 essentially comprises an outer sleeve part 2, a bottom part or a bottom wall 3 and an inner sleeve part 4. The outer sleeve part 2 is preferably cylindrical and extends, preferably starting from the edge of the bottom wall 3, to one side of the bottom wall 3. The inner sleeve part 4 extends to the one side opposite side of the bottom wall 3 and is also cylindrical. The inner sleeve part 4 surrounds the edge region of an opening 5, which is arranged centrally in the bottom part 3. The opening 5, the inner sleeve part 4 and the outer sleeve part 2 are arranged concentrically with each other. The bottom wall 3 extends perpendicular to the longitudinal axis of the sleeve assembly. 1

Vorzugsweise handelt es sich bei der zuvor erläuterten Hülsenanordnung 1 um ein aus einem stabförmigen Rohmaterial hergestelltes, an sich bekanntes Drehteil.The sleeve arrangement 1 explained above is preferably a rotary part which is known per se and is produced from a rod-shaped raw material.

In der Bodenwand 3 ist wenigstens ein in Umfangsrichtung verlaufender Schlitz 6 angeordnet, der, wie dies die Figuren 5 und 6 zeigen, in radialer Richtung gesehen, mit seinem inneren Rand an den Außenumfang des inneren Hülsenteiles 4 und mit seinem äußeren Rand an den Innenumfang des äußere Hülsenteiles 2 angrenzt.In the bottom wall 3, at least one extending in the circumferential direction slot 6 is arranged, which, like the FIGS. 5 and 6 show, seen in the radial direction, with its inner edge adjacent to the outer circumference of the inner sleeve part 4 and with its outer edge adjacent to the inner circumference of the outer sleeve part 2.

Vorzugsweise sind in dem Bodenteil 3 mehrere Schlitze, insbesondere sich radial gegenüberliegend zwei Schlitze, nämlich der Schlitz 6 und ein weiterer Schlitz 7 vorgesehen, wobei der innere Rand des Schlitzes 7 ebenfalls an den Außenumfang des inneren Hülsenteiles 4 und der äußere Rand des Schlitzes 7 ebenfalls an den Innenumfang des äußeren Hülsenteiels 2 angrenzen, wie dies die Figuren 5 und 6 zeigen. Die Schlitze 6 und 7 weisen in der Umfangsrichtung vorzugsweise unterschiedliche Längen auf.Preferably, in the bottom part 3 a plurality of slots, in particular radially opposite two slots, namely the slot 6 and another slot 7 are provided, wherein the inner edge of the slot 7 also to the outer periphery of the inner sleeve part 4 and the outer edge of the slot 7 also adjoin the inner periphery of the outer sleeve part 2, as the FIGS. 5 and 6 demonstrate. The slots 6 and 7 preferably have different lengths in the circumferential direction.

Im folgenden wird im Zusammenhang mit den Figuren 3 und 4 eine erste Stanzvorrichtung 10 zur Herstellung von Teilbereichen der Schlitze 6 und 7 in der Bodenwand 3 näher erläutert. Im Wesentlichen besteht die Stanzvorrichtung 10 zur Ausführung des ersten Stanzschrittes, bei dem gemäß den Figuren 1 und 2 jeweils ein erster, an das äußere Hülsenteil 4 angrenzender Teilbereich 6' bzw. 7' aus der Bodenwand 3 ausgestanzt werden, aus einer Schneidplatte 11, einer Zentrierplatte 12 und einer Führungsplatte 13, sowie einem Stempelteil 14 zum Ausstanzen des Teilbereiches 6' und einem Stempelteil 15 zum Ausstanzen des Teilbereiches 7'. Die Stempelteile 14 und 15 können zu einer Stempeleinheit zusammengefasst sein. Zur Ausrichtung weisen die Schneidplatte 11 und die Zentrierplatte 12 Öffnungen 8 bzw. 9 auf, in die in bekannter Weise Ausrichtbolzen (nicht dargestellt) eingebracht werden.The following will be related to the FIGS. 3 and 4 a first punching device 10 for the production of portions of the slots 6 and 7 in the bottom wall 3 explained in more detail. Essentially, the punching device 10 is for carrying out the first punching step in which according to the Figures 1 and 2 each a first, adjacent to the outer sleeve part 4 portion 6 'and 7' are punched out of the bottom wall 3, a cutting plate 11, a centering plate 12 and a guide plate 13, and a punch member 14 for punching the portion 6 'and a stamp part 15 for punching the partial area 7 '. The stamp parts 14 and 15 can be to a Stamp unit be summarized. For alignment, the cutting plate 11 and the centering plate 12 openings 8 and 9, in the alignment in a known manner (not shown) are introduced.

In der Schneidplatte 11 befindet sich mittig eine Aufnahmemulde 16, in die das innere Hülsenteil 4 der Hülsenanordnung 1 derart eingesetzt werden kann, dass die Bodenwand 3 auf der Oberfläche 17 der Schneidplatte 11 aufliegt. In radialer Richtung ist die Zentrierplatte 12 innenseitig derart bemessen, dass die Außenfläche des äußeren Hülsenteiles 2 an der Innenfläche einer Öffnung 18 der Zentrierplatte 12 anliegt.In the cutting plate 11 is centrally a receiving trough 16, in which the inner sleeve part 4 of the sleeve assembly 1 can be used such that the bottom wall 3 rests on the surface 17 of the cutting plate 11. In the radial direction, the centering plate 12 is dimensioned on the inside such that the outer surface of the outer sleeve part 2 bears against the inner surface of an opening 18 of the centering plate 12.

In der Führungsplatte 13 befindet sich eine zentrale, ringförmige Öffnung 19, in die die bereits erwähnte, die Stempelteile 14 und 15 umfassende Stempeleinheit einführbar ist, derart, dass bei der Ausführung der ersten Stanzoperation in der in der Figur 3 dargestellten Weise die Stempelteile 14 und 15 angrenzend an die Innenwandung des äußeren Hülsenteiles 2 die Teilbereiche 6' und 7' in der Bodenwand 3 ausstanzen, wobei es von Bedeutung ist, dass die gesamte Bodenwand 3 mit ihrer das innere Hülsenteil 4 umgebenden Fläche auf der Oberfläche 17 der Schneidplatte 11 plan aufliegt und daher unterstützt wird. Wegen dieser Auflage auf beiden Seiten der auszustanzenden Teilbereiche 6' und 7' werden Verformungen der Hülsenanordnung 1 bei der Ausführung des ersten Stanzschrittes vermieden. Die beim Ausstanzen der Teilbereiche 6' und 7' entstehenden und durch Öffnungen 50 aus der Schneidplatte 16 ausgeworfenen Materialteile sind in den Figuren 1 und 2 mit 26 bzw. 27 bezeichnet.In the guide plate 13 is a central, annular opening 19, in which the already mentioned, the punch parts 14 and 15 comprehensive stamp unit is insertable, such that in the execution of the first punching operation in the in the FIG. 3 illustrated manner, the punch members 14 and 15 adjacent to the inner wall of the outer sleeve member 2 punch out the portions 6 'and 7' in the bottom wall 3, wherein it is important that the entire bottom wall 3 with its surrounding the inner sleeve part 4 surface on the surface 17 of the cutting plate 11 rests flat and is therefore supported. Because of this support on both sides of the auszustanzenden portions 6 'and 7' deformations of the sleeve assembly 1 are avoided in the execution of the first punching step. The punched out during the punching of the partial regions 6 'and 7' and ejected through openings 50 from the cutting plate 16 material parts are in the Figures 1 and 2 denoted by 26 and 27, respectively.

Im folgenden wird im Zusammenhang mit den Figuren 3 und 4 eine weitere Stanzvorrichtung 30 zum Ausstanzen von weiteren Teilbereichen 6'' und 7'' und zur Herstellung der Endform der Schlitze 6 bzw. 7 näher erläutert.The following will be related to the FIGS. 3 and 4 a further punching device 30 for punching out further portions 6 '' and 7 '' and for producing the final shape of the slots 6 and 7 explained in more detail.

Im Wesentlichen besteht die weitere Stanzvorrichtung 30 zur Ausführung des zweiten Stanzschrittes, bei dem gemäß den Figuren 5 und 6 jeweils ein zweiter, an den Außenumfang des inneren Hülsenteiles 4 angrenzender Teilbereich 6'' bzw. 7'' aus der Bodenwand 3 ausgestanzt werden, aus einer Schneidplatte 31, einer Zentrierplatte 32 und einer Führungsplatte 33, sowie einem Stempelteil 34 zum Ausstanzen des Teilbereiches 6" und einem Stempelteil 35 zum Ausstanzen des Teilbereiches 7''. Die Stempelteile 34 und 35 können ebenfalls zu einer Stempeleinheit zusammengefasst sein. Zur Ausrichtung weisen die Führungsplatte 33 und die Zentrierplatte 32 Öffnungen 36 bzw. 38 auf, in die in bekannter Weise Ausrichtbolzen (nicht dargestellt) eingebracht werden.Essentially, the further punching device 30 is for carrying out the second punching step, according to which FIGS. 5 and 6 each a second, adjacent to the outer circumference of the inner sleeve part 4 portion 6 '' or 7 '' are punched out of the bottom wall 3, a cutting plate 31, a centering plate 32 and a guide plate 33, and a punch member 34 for punching the portion 6th The punch parts 34 and 35 can also be combined to form a punch unit. For alignment, the guide plate 33 and the centering plate 32 have openings 36 and 38, respectively, into which alignment pins (in a known manner) are inserted. not shown) are introduced.

Die Schneidplatte 31 ist vorzugsweise so gestaltet. Dass sie einen Halsbereich 40 aufweist, auf den das äußere Hülsenteil 2 derart aufsetzbar ist, dass die Bodenwand 3 der Hülsenanordnung 1 auf der Oberfläche 41 der Schneidplatte 31 bzw. der Stirnseite des Halsbereiches (40) aufliegt. In radialer Richtung ist die Zentrierplatte 32 innenseitig derart bemessen, dass die Außenfläche des äußeren Hülsenteiles 2 an der Innenfläche einer Öffnung 38 der Zentrierplatte 32 anliegt. Ferner ist ein in eine mittige Bohrung 42 der Schneidplatte 31 bzw. des Halsbereiches 40 eingreifendes Kernteil 43 so bemessen, dass der Innenumfang des inneren Hülsenteiles 4 an dem Außenumfang des Kernteiles 43 anliegt.The cutting plate 31 is preferably designed in this way. That it has a neck portion 40, on which the outer sleeve part 2 can be placed such that the bottom wall 3 of the sleeve assembly 1 rests on the surface 41 of the cutting plate 31 and the end face of the neck region (40). In the radial direction, the centering plate 32 is dimensioned on the inside such that the outer surface of the outer sleeve part 2 bears against the inner surface of an opening 38 of the centering plate 32. Furthermore, a core part 43 engaging in a central bore 42 of the cutting plate 31 or the neck region 40 is dimensioned so that the inner circumference of the inner sleeve part 4 bears against the outer circumference of the core part 43.

In der Führungsplatte 33 befindet sich eine zentrale, ringförmige Öffnung 44, in die die bereits erwähnte, die Stempelteile 34 und 35 umfassende Stempeleinheit einführbar ist, derart, dass bei der Ausführung der zweiten Stanzoperation in der in der Figur 7 dargestellten Weise die Stempelteile 34 und 35 angrenzend an den Außenumfang des inneren Hülsenteiles 4 die Teilbereiche 6" und 7" in der Bodenwand 3 ausstanzen, wobei es von Bedeutung ist, dass dabei der gesamte noch bestehende Bereich der Bodenwand 3 mit seiner das innere Hülsenteil 4 umgebenden Fläche auf der genannten Oberfläche 41 des Halsbereiches 40 der Schneidplatte 31 plan aufliegt und daher unterstützt wird. Wegen dieser Auflage werden Verformungen der Hülsenanordnung 1 im Bereich des inneren Hülsenteiles 4 bei der Ausführung des ersten Stanzschrittes vermieden. Bei dem Stanzschritt wird die Innenfläche des äußeren Hülsenteiles 2 an der Außenfläche des Halsbereiches 40 gegen Verformungen gesichert gehalten. Die beim Ausstanzen der Teilbereiche 6" und 7" entstehenden und durch Öffnungen 49 aus der Schneidplatte 31 ausgeworfenen Materialteile sind in den Figuren 5 bis 7 mit 26' bzw. 27' bezeichnet.In the guide plate 33 is a central, annular opening 44, in which the already mentioned, the punch parts 34 and 35 comprehensive stamp unit is insertable, such that in the execution of the second punching operation in the in the FIG. 7 shown stamping the punch parts 34 and 35 adjacent to the outer periphery of the inner sleeve part 4, the portions 6 "and 7" in the bottom wall 3, wherein it is important that while the entire existing area of the bottom wall 3 with its inner sleeve part surrounding surface on said surface 41 of the neck portion 40 of the cutting plate 31 rests flat and is therefore supported. Because of this constraint deformations of the sleeve assembly 1 in the region of the inner sleeve member 4 are avoided in the execution of the first punching step. In the stamping step, the inner surface of the outer sleeve member 2 is held secured against deformation on the outer surface of the neck portion 40. The punched out during the punching of the portions 6 "and 7" and ejected through openings 49 from the cutting plate 31 material parts are in the FIGS. 5 to 7 denoted by 26 'and 27', respectively.

Zwischen den die Stanzschritte der Figuren 3 und 7 ausführenden Stanzvorrichtungen 10 bzw. 30 ist eine nicht näher dargestellte Übertragungsvorrichtung angeordnet, die die Hülsenanordnungen nach dem ersten Stanzschritt aus der Stanzvorrichtung 10 entnimmt und in die zweite Stanzvorrichtung 30 zur Ausführung des zweiten Stanzschrittes überträgt.Between the punching steps of Figures 3 and 7 implementing punching devices 10 and 30, a transfer device, not shown, is arranged, which removes the sleeve assemblies after the first punching step from the punching device 10 and transmits into the second punching device 30 for performing the second punching step.

Claims (13)

  1. A method of providing slots in the bottom wall (3) of a sleeve assembly (1), said sleeve assembly (1) comprising an outer sleeve member (2), a bottom wall (3) and an inner sleeve member (4), with said outer sleeve member (2) being formed to be integral with bottom wall (3) on one side thereof and inner sleeve member (4) being formed to be integral with bottom wall (3) on the opposite side thereof, and with bottom wall (3) having therein between the periphery of outer sleeve member (2) and the periphery of inner sleeve member (4) at least one slot (6) extending in a circumferential direction, said at least one slot (6) being provided by being punched out, characterized by punching out in a first punching step a portion (6') of said at least one slot (6), which portion lies adjacent the periphery of outer sleeve member (2), and by punching out in a second punching step the portion of the at least one slot (6) which is disposed adjacent the periphery of inner sleeve member (4).
  2. Method as in claim 1, characterized by punching out from bottom wall (3) two oppositely disposed slots (6, 7).
  3. Method as in claim 2, characterized in that slots (6, 7) are punched out to have a different circumferential length.
  4. Method as in any one of claims 1 to 3, characterized in that outer sleeve member (2) and inner sleeve member (4) are circularly cylindrical in shape and concentric with each other and in that bottom wall (3) extends in a direction normal to the longitudinal axis of said inner and outer sleeve members (2, 4).
  5. Method as in any one of claims 1 to 4, characterized in that inner sleeve member (4) surrounds an opening (5) centrally located in bottom wall (3).
  6. Method as in any one of claims 1 to 5, characterized in that said first punching step is performed in first punching means (10) having in a cutting plate (11) a well (16) for receiving inner sleeve member (4) and a surface (17) engaging the area of bottom wall (3) surrounding inner sleeve member (4) when inner sleeve member (4) is seated in receiving well (16), and in that a punch portion (14) is used in said first punching step to stamp out the portion (6') of slot (6) which is disposed adjacent the inner wall of outer sleeve member (2).
  7. Method as in claim 6, characterized in that in said first punching step first and second punch portions (14, 15) are used to simultaneously punch out portions (6', 7') of first and second slots (6, 7) located adjacent the inner wall of outer sleeve member (2).
  8. Method as in claim 6 or 7, characterized in that first punching means (10) comprises a centering plate (12) having therein an opening (18) of which the inner wall engages the peripheral surface of outer sleeve member (2) when inner sleeve member (4) is seated in receiving well (16) of cutting plate (11), when bottom wall (4) engages surface (17) of cutting plate (11), and when opening (18) in centering plate (12) is aligned to be concentric with receiving well (16).
  9. Method as in claim 6, characterized in that punch portion (14) is fixed in a guide plate (13) which for punching out slot portions (6', 7') disposed adjacent outer sleeve member (2) is moved in a direction towards cutting plate (11) from the side of outer sleeve member (2) of sleeve assembly (1) disposed in receiving well (16).
  10. Method as in claim 7 or 8, characterized in that first and second punch portion (14, 15) are fixed in a guide plate (13) which for punching out portions (6', 7') adjacent outer sleeve member (2) is moved in a direction towards cutting plate (11) from the side of outer sleeve member (2) of sleeve assembly (1) disposed in receiving well (16).
  11. Method as in any one of claims 1 to 10, characterized in that portion (6") of said at least one slot (6) which is disposed adjacent inner sleeve member (4) is provided in the second punching step in second punching means (30) comprising a cutting plate (31) having an annular neck portion (40) adapted to engage outer sleeve member (2) in a manner such that bottom wall (3) engages the end surface of neck portion (40), and in that in said second punching step the at least one third punch portion (34) is used to punch out the portion (6") of slot (6) which is disposed adjacent the outer wall of inner sleeve member (4).
  12. Method as in claim 11, characterized in that second punching means (30) comprises an additional centering plate (32) and an additional guide plate (33) holding third punch portion (34) for punching out the portion (6") of slot (6) which is disposed adjacent inner sleeve member (4), in that said additional centering plate (32) has therein an opening (38) of which the inner wall engages the peripheral surface of outer sleeve member (2) when the additional punching step is performed, in that said additional cutting plate (31) comprises a centered core member (43) in a central bore (42) of said additional cutting plate (31) in a manner such that, when performing said second punching step, the inner surface of inner sleeve member (4) engages the outer surface of core member (43), with core member (43) extending through inner sleeve member (4), and in that additional guide plate (33) is moved in a direction towards additional cutting plate (31) for punching out portion (6') adjacent the periphery of inner sleeve member (4).
  13. Method as in claim 12, characterized in that additional guide plate (33) comprises a fourth punch portion (35) for punching out portion (7") of second slot (7) adjacent inner sleeve member (4) when performing said second punching step.
EP08013394A 2007-10-19 2008-07-25 Method for producing slits in the bottom wall of a pot-shaped sleeve assembly Not-in-force EP2050524B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007050498A DE102007050498B4 (en) 2007-10-19 2007-10-19 Method for producing slots in the bottom wall of a cup-shaped sleeve arrangement

Publications (3)

Publication Number Publication Date
EP2050524A2 EP2050524A2 (en) 2009-04-22
EP2050524A3 EP2050524A3 (en) 2009-11-11
EP2050524B1 true EP2050524B1 (en) 2010-11-17

Family

ID=40408616

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08013394A Not-in-force EP2050524B1 (en) 2007-10-19 2008-07-25 Method for producing slits in the bottom wall of a pot-shaped sleeve assembly

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EP (1) EP2050524B1 (en)
AT (1) ATE488312T1 (en)
DE (2) DE102007050498B4 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111822582B (en) * 2020-06-04 2022-09-13 天辰兰德(山东)科技服务有限公司 Notching device for copper hot pot chassis welding notch

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01306028A (en) * 1988-06-01 1989-12-11 Kyushu Musashi Seimitsu Kk Manufacture of metallic material with hole
DE19742781C2 (en) * 1997-09-27 2000-10-19 Sander Kg Gmbh & Co Method and device for punching at least one opening into a part with an angular cross section
JP2003088935A (en) * 2001-09-13 2003-03-25 Sumitomo Heavy Ind Ltd Manufacturing method of external gear
EP1632297B1 (en) * 2004-09-02 2010-01-27 Ford Global Technologies, LLC Method and tool for punching and/or forming

Also Published As

Publication number Publication date
DE102007050498A1 (en) 2009-04-23
ATE488312T1 (en) 2010-12-15
DE502008001812D1 (en) 2010-12-30
DE102007050498B4 (en) 2012-01-12
EP2050524A2 (en) 2009-04-22
EP2050524A3 (en) 2009-11-11

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