EP0893178B1 - Outil pour poinçonnage et estampage - Google Patents

Outil pour poinçonnage et estampage Download PDF

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Publication number
EP0893178B1
EP0893178B1 EP98112948A EP98112948A EP0893178B1 EP 0893178 B1 EP0893178 B1 EP 0893178B1 EP 98112948 A EP98112948 A EP 98112948A EP 98112948 A EP98112948 A EP 98112948A EP 0893178 B1 EP0893178 B1 EP 0893178B1
Authority
EP
European Patent Office
Prior art keywords
piston
pressure
rivet
cylinder
chamber
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
EP98112948A
Other languages
German (de)
English (en)
Other versions
EP0893178A2 (fr
EP0893178A3 (fr
Inventor
Georg Donhauser
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.)
Kerb Konus Vertriebs GmbH
Original Assignee
Kerb Konus Vertriebs GmbH
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
Priority claimed from DE29713346U external-priority patent/DE29713346U1/de
Priority claimed from DE29716441U external-priority patent/DE29716441U1/de
Application filed by Kerb Konus Vertriebs GmbH filed Critical Kerb Konus Vertriebs GmbH
Publication of EP0893178A2 publication Critical patent/EP0893178A2/fr
Publication of EP0893178A3 publication Critical patent/EP0893178A3/fr
Application granted granted Critical
Publication of EP0893178B1 publication Critical patent/EP0893178B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00Riveting
    • B21J15/10Riveting machines
    • B21J15/36Rivet sets, i.e. tools for forming heads; Mandrels for expanding parts of hollow rivets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00Riveting
    • B21J15/02Riveting procedures
    • B21J15/025Setting self-piercing rivets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00Riveting
    • B21J15/10Riveting machines
    • B21J15/16Drives for riveting machines; Transmission means therefor
    • B21J15/20Drives for riveting machines; Transmission means therefor operated by hydraulic or liquid pressure
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/53Means to assemble or disassemble
    • Y10T29/53039Means to assemble or disassemble with control means energized in response to activator stimulated by condition sensor
    • Y10T29/53061Responsive to work or work-related machine element
    • Y10T29/53065Responsive to work or work-related machine element with means to fasten by deformation
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/53Means to assemble or disassemble
    • Y10T29/53709Overedge assembling means
    • Y10T29/5377Riveter

Definitions

  • the invention relates to a stamping and embossing tool according to the preamble of claim 1.
  • a stamping and embossing tool is known from DE-A 23 45 017.
  • Such stamping and embossing tools are used to connect two joining parts, preferably Sheet metal, using a rivet.
  • Such rivets have a rivet head and a groove on the shaft
  • the two are placed on an anvil Joined parts are pressed together by a spring-loaded hold-down device, whereupon the rivet needle presses the rivet into the parts to be joined, and in this way punching slugs from the Parts to be punched out.
  • the rivet head With the further downward movement of the rivet needle the rivet head is pressed into the punched-out part of the upper part.
  • the displaced material penetrating into the shaft groove is described in DE-A 23 45 017.
  • the pressure exerted by the spring-loaded hold-down device is often not sufficient to press the two joining parts against one another without a gap, which is particularly the case with hard and thick sheet metal is the case.
  • the strength of the riveted joints is therefore differently.
  • the same disadvantage occurs when the parts to be joined are different Show tolerances. Since the movement of the ram is controlled away, must Thickness tolerances can be compensated for by adjusting the height of the anvil.
  • the task is to design the stamping and embossing tool so that it is flawless Rivet connection between the parts to be joined is achieved.
  • the stamping and embossing tool has a hydraulic cylinder 1, in which two pistons 2, 3 are guided.
  • the rivet needle 4 is connected to the upper piston 2, while with the lower piston 3, a press cylinder 5 is connected, which in Fig. 1st not shown press ram carries.
  • With the upper piston 2 is still connected a hollow piston rod 6.
  • the piston 2 has bores 7, which the space 8th Connect between the pistons 2, 3 to the inside of the piston rod 6.
  • the cylinder 1 has a connection 9 which opens into the cylinder space above the piston 2.
  • the inside of the piston rod 6 is connected to a further connection 10, while the cylinder space below the piston 3 is connected to a third connection 11.
  • a first pressure cylinder 12 Connected to port 9 is a first pressure cylinder 12 with which another Printing cylinder 13 can be connected, with which in turn a third printing cylinder 14 is connectable.
  • the connection 10 is connected to an adjustable throttle 15, the is in turn connected to a variable-volume pressure chamber 16.
  • the sequence of operations is as follows:
  • the piston 17 of the pressure cylinder 14 is initially himself in his left position. Take the pistons 18 and 19 of the pressure cylinders 12, 13 their right position as shown. This creates a hydraulic connection from the impression cylinder 14 via the impression cylinder 13 and the impression cylinder 12 to Connection 9.
  • the throttle 15 is open, so that a direct connection between the Space 8, the holes 7, the hollow piston rod 6, the connection 10, the throttle 15th to the left side of the piston 20 of the pressure chamber 16. To the right side of the Piston 20 acts at a constant pressure.
  • the piston 2 has approached the piston 3 by a predetermined distance, which is greater than the length of the rivet, the pressure cylinder 12 is activated by Compressed air supply at port 23 of piston 18 is moved to the left. At this Movement, the connection between the cylinders 12, 13 is interrupted. from Pressure cylinder 12, oil is supplied to port 9 under high pressure. With Actuation of the pressure cylinder 12, the throttle 15 is activated, so that between a throttle resistor is built up to the connection 10 and the pressure chamber 16. This throttle resistance is adjustable.
  • the piston 3 thus has a high resistance, but due to the throttle resistance adjustable pressure, which causes the press ram 25 attached to the press cylinder 5 exerts a high hold-down force on the joining parts 24A, 24B, which is thus gap-free lie against each other, see position of Fig. 3.
  • the rivet 29 of the Rivet needle 4 pressed through the joining parts 24A, 24B and the rivet head into the generated Bore of the upper joining part 24A, see position according to FIG. 4.
  • the pistons 17, 18, 19 are returned to their starting position.
  • the throttle 15 will be opened.
  • the oil pressure in the pressure chamber 16 separates the two pistons 2, 3 from one another.
  • a pressure is built up below the piston 3 via the connection 11, so that both pistons 2, 3 are returned to their starting position.
  • the hydraulic cylinder 1 is connected to the tool frame via a C-bracket 23.
  • the tool head comprises the rivet needle 4 and the ram 25, the one Has bore through which the rivet needle 4 is displaceable.
  • the ram 25 is attached to the press cylinder 5.
  • At the lower end of the rivet needle 4 is a Flanged valve body 30, the slide of the rivet 29 the lower end of the Rivet needle 4 feeds.
  • the press ram 25 has the function of a hold-down device.
  • the to each other connecting joining parts are designated with 24A and 24B. They are on anvil 26 on this anvil 26 is provided with a bore 27 which is formed by an embossing lip 28 is surrounded.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Insertion Pins And Rivets (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Forging (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Ink Jet (AREA)

Claims (7)

  1. Outil pour poinçonnage et estampage avec une pointe de rivetage (4) pouvant être déplacée dans une forure d'un poinçon de pressage (25) pour réaliser la liaison de pièces à assembler (24A, 24B) à l'aide d'un rivet (29), avec lequel le rivet (29) est poussé dans les pièces à assembler (24A, 24B) lors du mouvement de descente de la pointe de rivetage (4) et le poinçon de pressage (25) génère ensuite une force d'estampage, sur la base de laquelle une enclume (26) provoque une déformation du matériau de la pièce à assembler (24B) se trouvant sur l'enclume (26), du matériau étant de ce fait poussé dans la rainure de la tige du rivet (29), caractérisé en ce qu'il est prévu un vérin hydraulique (1) avec deux pistons (2, 3), l'un des pistons (2) portant la pointe de rivetage (4) et l'autre piston (3) portant le poinçon de pressage (5, 25), la cavité (8) entre les pistons (2, 3) étant reliée avec un compartiment sous pression (16) dont le volume peut être modifié, le volume intérieur du cylindre dirigé vers l'un des pistons (2) étant relié avec un vérin de pression (12) et une commande étant prévue qui, après qu'un rivet (29) ait été amené sous la pointe de rivetage (4) et le poinçon de pressage (25) étant placé sur la pièce à assembler supérieure (24A), active l'un des vérins de pression (12) et intercale un élément d'étranglement (15) entre la cavité (8) se trouvant entre les pistons (2, 3) et le compartiment sous pression (16) et la pression du vérin de pression (12) poussant dans ce cas, pour la réalisation de l'opération de poinçonnage et pour exercer une force d'abaissement par le poinçon de pressage (25), l'un des pistons (2) en direction de l'autre piston (3) jusqu'à ce que, pour la réalisation de l'opération d'estampage, l'un des pistons (2) repose sur l'autre piston (3).
  2. Outil pour poinçonnage et estampage selon la revendication 1, caractérisé en ce que la résistance d'étranglement de l'élément d'étranglement (15) est réglable.
  3. Outil pour poinçonnage et estampage selon la revendication 1 ou 2, caractérisé en ce que l'un des pistons (2) comprend une tige de piston creuse (6), qui est reliée avec l'élément d'étranglement (15) et dans laquelle débouchent des forures (7) traversant ce piston (2) et conduisant à la cavité (8) entre les pistons (2, 3).
  4. Outil pour poinçonnage et estampage selon l'une des revendications 1 à 3, caractérisé en ce qu'il est prévu un autre vérin de pression (13), qui peut être relié avec le volume intérieur du cylindre, qui est dirigé vers l'un des pistons (2), qui produit une pression qui est inférieure à celle de l'un des vérins de pression (12) mais supérieure à celle régnant dans le compartiment sous pression (16) et qui, lorsqu'il est activé, pousse l'un des pistons (2) en direction de l'autre piston (3) jusqu'à ce que les pistons (2, 3) soient distants l'un de l'autre d'une valeur imposée, le volume intérieur du cylindre étant ensuite relié avec l'un des vérins de pression (12).
  5. Outil pour poinçonnage et estampage selon la revendication 4, caractérisé en ce qu'il est prévu un troisième vérin de pression (14), qui peut être relié avec le volume intérieur du cylindre, qui est dirigé vers l'un des pistons (2), qui produit une pression qui est inférieure à celle régnant dans le compartiment sous pression (16) et qui, lorsqu'il est activé, pousse les deux pistons (2, 3) en direction des pièces à assembler (24A, 24B) jusqu'à ce que le poinçon de pressage (25) touche la pièce à assembler supérieure, le volume intérieur du cylindre étant ensuite relié avec l'autre vérin de pression (13).
  6. Outil pour poinçonnage et estampage selon l'une des revendications 1 à 5, caractérisé en ce que la pointe de rivetage (4) guidée dans le poinçon de pressage (25) comprend une forure s'étendant le long de la pointe de rivetage (4), pouvant être raccordée à une source de dépression et aboutissant au sommet de la pointe de rivetage (4).
  7. Outil pour poinçonnage et estampage selon l'une des revendications 1 à 6, caractérisé en ce que dans la zone du sommet de la pointe de rivetage (4) est disposé un boítier de coulisseau (30), dans lequel un coulisseau, qui déplace le rivet (29) vers ce sommet, est placé de manière à pouvoir être déplacé dans le sens transversal par rapport à la pointe de rivetage (4)
EP98112948A 1997-07-26 1998-07-13 Outil pour poinçonnage et estampage Expired - Lifetime EP0893178B1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE29713346U 1997-07-26
DE29713346U DE29713346U1 (de) 1997-07-26 1997-07-26 Stanz-Prägewerkzeug
DE29716441U 1997-09-12
DE29716441U DE29716441U1 (de) 1997-09-12 1997-09-12 Stanz-Prägewerkzeug
DE19808016 1998-02-26
DE19808016A DE19808016A1 (de) 1997-09-12 1998-02-26 Stanz-Prägewerkzeug

Publications (3)

Publication Number Publication Date
EP0893178A2 EP0893178A2 (fr) 1999-01-27
EP0893178A3 EP0893178A3 (fr) 2000-08-16
EP0893178B1 true EP0893178B1 (fr) 2003-04-09

Family

ID=27218166

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98112948A Expired - Lifetime EP0893178B1 (fr) 1997-07-26 1998-07-13 Outil pour poinçonnage et estampage

Country Status (4)

Country Link
US (1) US6041493A (fr)
EP (1) EP0893178B1 (fr)
CA (1) CA2243922C (fr)
ES (1) ES2193444T3 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19924310B4 (de) * 1999-05-27 2007-11-22 Böllhoff GmbH Hydraulische Antriebseinrichtung für ein Fügewerkzeug
DE10031073B4 (de) * 2000-06-30 2016-11-24 Gustav Klauke Gmbh Verfahren zum Vernieten
US6405421B1 (en) * 2001-01-03 2002-06-18 Hon Hai Precisionind. Co., Ltd. Die assembly for riveting
US6975088B1 (en) * 2002-11-15 2005-12-13 Automation By Design, Inc. Automatic dynamic joint tensioning system
DE102005031917A1 (de) * 2004-09-24 2006-04-13 Böllhoff Verbindungstechnik GmbH Verfahren zum Fügen und Vorrichtung zum Betätigen eines Fügewerkzeuges
DE102006013651B4 (de) * 2005-10-14 2008-09-25 Richard Bergner Verbindungstechnik Gmbh & Co. Kg Werkzeugeinheit und Verfahren zum axialen Verschieben eines Werkzeugkopfes
US7753230B2 (en) * 2007-12-20 2010-07-13 Mikio Kusano Nut feeder
DE102015014517B3 (de) * 2014-02-03 2017-05-18 Kiefel Gmbh Verfahren zum Nieten, Nietanlage und Airbagbauteil
CN108099219B (zh) * 2017-12-20 2019-10-22 吉林大学 一种碳纤维复合材料板与铝合金板之间的粘铆方法
CN109454194A (zh) * 2018-07-27 2019-03-12 宾科精密部件(中国)有限公司 流体压力驱动的压铆装置

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US2540942A (en) * 1948-01-27 1951-02-06 Warren G Grimes Variable friction gearing
US3557442A (en) * 1968-04-02 1971-01-26 Gen Electro Mech Corp Slug riveting method and apparatus
US3562893A (en) * 1968-05-28 1971-02-16 Omark Winslow Co Apparatus for driving rivets using explosive charge
GB1287572A (en) * 1968-09-16 1972-08-31 Avdel Ltd Blind riveting apparatus
US3771480A (en) * 1971-10-27 1973-11-13 Johnson Die & Eng Co Method and apparatus for extruding a rivet form in a layer of metallic material
GB1471666A (en) * 1973-07-19 1977-04-27 Ocean Investments Ltd Method and fastener for use in joining together an assembly of metal sheets
US3874070A (en) * 1973-08-03 1975-04-01 Boeing Co High fatigue squeeze riveting process and apparatus therefor
US4126076A (en) * 1974-06-19 1978-11-21 Rosman Irwin E Rivet fastener system
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DE3123581A1 (de) * 1981-06-13 1982-12-30 Mannesmann AG, 4000 Düsseldorf Nietvorrichtung
US4515302A (en) * 1981-12-21 1985-05-07 Gemcor Engineering Corp. Riveting machine
DE3532932A1 (de) * 1985-09-14 1987-03-19 Schwab Maschbau Nietsetzwerkzeug
US4628722A (en) * 1986-02-14 1986-12-16 Usm Corporation Setting tool for rivet with pull-headed mandrel
US4744238A (en) * 1986-07-02 1988-05-17 Senco Products, Inc. Pneumatic rivet setting tool
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GB9226517D0 (en) * 1992-12-19 1993-02-10 Henrob Ltd Improvements in or relating to sefl-piercing riveting
CZ114193A3 (en) * 1993-06-11 1995-01-18 Josef Wihan Rivetting tool
DE19752367A1 (de) * 1997-11-26 1999-05-27 Emhart Inc Verfahren und Vorrichtung zur Herstellung einer Stanznietverbindung

Also Published As

Publication number Publication date
ES2193444T3 (es) 2003-11-01
CA2243922A1 (fr) 1999-01-26
CA2243922C (fr) 2006-09-26
US6041493A (en) 2000-03-28
EP0893178A2 (fr) 1999-01-27
EP0893178A3 (fr) 2000-08-16

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