EP1247599A1 - Dispositif d' entraínement pour outil d' insertion - Google Patents

Dispositif d' entraínement pour outil d' insertion Download PDF

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Publication number
EP1247599A1
EP1247599A1 EP02007588A EP02007588A EP1247599A1 EP 1247599 A1 EP1247599 A1 EP 1247599A1 EP 02007588 A EP02007588 A EP 02007588A EP 02007588 A EP02007588 A EP 02007588A EP 1247599 A1 EP1247599 A1 EP 1247599A1
Authority
EP
European Patent Office
Prior art keywords
compressed air
hold
air chamber
drive device
pressure
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.)
Granted
Application number
EP02007588A
Other languages
German (de)
English (en)
Other versions
EP1247599B1 (fr
Inventor
Hans Jörg Lang
Werner Helmig
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.)
Boellhoff GmbH
Original Assignee
Boellhoff 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
Application filed by Boellhoff GmbH filed Critical Boellhoff GmbH
Publication of EP1247599A1 publication Critical patent/EP1247599A1/fr
Application granted granted Critical
Publication of EP1247599B1 publication Critical patent/EP1247599B1/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
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/10—Riveting machines
    • B21J15/16—Drives for riveting machines; Transmission means therefor
    • B21J15/26—Drives for riveting machines; Transmission means therefor operated by rotary drive, e.g. by electric motor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/02—Riveting procedures
    • B21J15/025—Setting self-piercing rivets
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53709—Overedge assembling means
    • Y10T29/5377—Riveter

Definitions

  • the present invention relates to a drive device for a press-in tool, in particular a tool for joining workpieces made of ductile Material that is a stamp for a press fit and a relative to the punch axially movable hold-down to hold down one or more Has workpieces during the pressing process.
  • press-in tools such as Tools for setting punch rivets are usually hydraulically operating drive devices intended.
  • the force for actuating the Stamp generated by means of a hydraulic cylinder, the transfers the hydraulic pressure directly or indirectly to the stamp, cf. e.g. DE 199 24 310.
  • the hold-down force exerted by the hold-down device on the workpieces can either be from an additional hydraulic cylinder or from the stamp be exerted by force transmission means in the form of a spring. If these drive devices have proven themselves in principle, they are not for everyone Suitable for applications.
  • the use of an additional Hydraulic cylinders require a corresponding design and control technology Effort.
  • a spring as a power transmission means the risk of spring breakage, which increases the lifespan and operational safety of the press tool reduced accordingly.
  • the hold-down force set by the spring and cannot be changed.
  • the present invention has for its object a drive device for a press-in tool of the type specified above, that they are as trouble-free and wear-free as possible with their structural simplicity is working.
  • the hold-down force should be changeable and adjustable.
  • the invention is defined in claim 1.
  • the power transmission means exist between the stamp and the hold-down made of a variable volume Compressed air chamber caused by an axial relative movement between the stamp and Hold-down device during the press-in process to increase the hold-down force is compressed.
  • the pneumatic spring is created in the form of the compressed air chamber a given hold-down force.
  • the invention offers the possibility of the initial pressure in the Infinitely adjustable air chamber. This allows the hold-down force set individually and quickly and adapt to special applications.
  • pressure in the compressed air chamber can also be varied Control throttle point or a pressure control device as desired.
  • Conventional actuators such as hydraulic actuators are used Cylinders in question that act directly or indirectly on the stamp.
  • the drive has an electric motor and one of the electric Motor driven spindle mechanism.
  • the press tool shown in FIGS. 1 and 2 is a rivet setting tool trained to set punch rivets.
  • the invention can also be for other press-in tools such as Clinching Tools use.
  • the drive device of the rivet setting tool shown has one electric motor 2 on the outside of a tubular housing 4 of the actual rivet setting tool is attached.
  • the electric motor 2 is over one Reduction gear 6 from two planet gears 8 with a spindle mechanism 10 connected, in the housing composed of several housing parts 4 is arranged.
  • the two intermeshing planet gears 8 are like schematically indicated, by means of ball bearings in the associated housing sections rotatably mounted, the one planet gear 8 with the output shaft of the electrical Motor 2 and the other planet gear 8 with a spindle 12 of the spindle mechanism 10 is rotatably connected.
  • the reduction gear 6 increases the electric motor 2 to the spindle mechanism 10 transmitted torque a predetermined factor and reduces the drive speed by the same factor.
  • the spindle 12 of the spindle mechanism arranged concentrically in the housing 4 10 is rotatable by means of a ball bearing 14 and axially immovable in the housing 4 stored.
  • the spindle 12 meshes with a nut 16.
  • the nut 16 is fixed connected to a stamp part 18 of a stamp 20 for setting the punch rivets (Not shown).
  • the nut 16 and the stamp 20 with the stamp part 18 are relative to the housing 4 rotatably and axially displaceably. A rotation of the spindle 12 therefore causes a corresponding axial movement of the nut 16 and Stamp 20
  • the stamp 20 with the stamp part 18 is coaxial with a hold-down part 22 surrounded a hold-down 24.
  • the hold-down 24 with the hold-down part 22 is axial both relative to the punch 20 and relative to the housing 4 slidably mounted on the sheet to be riveted (not shown) during to be able to exert a hold-down force during the riveting process, as explained in more detail becomes.
  • the stamp part 18 is at the top provided with a cover 26, which the nut 16 inside the stamp part 18th guaranteed.
  • the hold-down part 22 is also on its top with a lid 28 provided with which the hold-down part 22 in the basic position (Fig. 1) of the rivet setting tool abuts on the underside of a housing part 4a.
  • the stamp part 18 and the hold-down part 22 each have two cylindrical Sections 18a, 18b or 22a or 22b, which are arranged in sealed manner one inside the other are that opposite circumferential and shoulder surfaces of this Sections delimit a compressed air chamber 30 between them.
  • the sections 18a and 22a or 18b and 22b by seals sealed against each other, so that the compressed air chamber 30 is fluid-tight is completed.
  • the compressed air chamber 30 is, however, in the illustrated embodiment via a flow connection 32 to a compressed air source (not shown) in connection.
  • the flow connection 32 consists of a compressed air connection 34, which is provided on the outside of the housing 4, one between the housing 4 and the hold-down part 22 formed annular space 36, which is essentially extends over the entire length of section 22a, and one in the Hold-down part formed passage 38, the annular space 36 with the compressed air chamber 30 connects.
  • the actual joining part 40 of the stamp 20 and the mouthpiece 42 of the Hold-down devices 24 are of conventional design and can, for example, as in FIG of DE 199 24 310, so that they are not described in detail.
  • the compression ratio is in the order of 3.
  • Via the flow connection 32 can set the initial pressure in the compressed air chamber 30 to a predetermined value.
  • an unlockable check valve (not shown) is provided, which prevents pressure from escaping from the compressed air chamber 30.
  • a variable throttle point (not shown) be provided by which the pressure in the compressed air chamber is arbitrary can be controlled. As a result, the hold-down force can still be during the Influence the riveting process in the desired way.
  • the compressed air chamber 30 acting as a pneumatic spring thus ensures a fast and continuously adjustable hold-down force with minimal wear of the components involved.
  • FIG. 3 shows a schematic sketch of a pressure control device 46 which serves to control the pressure in the compressed air chamber 30.
  • the pressure control device 46 has a pressure regulator 48 on its inlet side with a compressed air source 44 and on its outlet side via a line 50, a check valve 52 and a line 54 with the compressed air connection 34 of the Compressed air chamber 30 is connected.
  • the pressure control device 46 also has one Pressure intensifier 56 in the form of a two-stage air cylinder with a two-stage Piston assembly consisting of a piston 58 of smaller cross section and there is a piston 60 of larger cross section.
  • the pressure intensifier 56 is on the Side of the smaller piston 58 via the line 54 with the compressed air connection 34 connected to the air chamber 30 while on the larger piston side 60 can be connected to the pressure regulator 48 via a directional valve 62.
  • the pressure translator 56 is also in its area between the small piston 56 and large Piston 60 connected to the atmosphere via a filter (indicated schematically).
  • the operation of the pressure control device is as follows. At the beginning of a The rivet setting process becomes the compressed air chamber 30 from the compressed air source 44 via the pressure regulator 48 and the lines 50, 54 with a predetermined initial pressure applied. With the help of the pressure intensifier 46 is now during the Compression of the compressed air chamber 30 the pressure prevailing therein in the desired Controlled way.
  • the pressurization of the pressure intensifier 56 control with the help of the directional control valve 62 so that the piston arrangement 58, 60 closes Start of the rivet setting process is in its (in Fig. 3) upper position.
  • the smaller piston 58 is connected via line 54 to that from the compressed air chamber 30 displaced compressed air volume, so that the piston assembly 58, 60 goes down.
  • the ratio of pressurized Surfaces of the pistons 56 and 60 can be a relatively flat pressure rise in this way or achieve a constant pressure in the compressed air chamber 30.
  • the compressed air supply to the pressure booster 56 is at the beginning a rivet setting process is controlled so that the piston assembly 58, 60 initially is in its lower position (in Fig. 3) and then during compression the compressed air chamber 30 is adjusted upwards, there is a corresponding steeper pressure increase in the compressed air chamber.
  • the pressure in the compressed air chamber 30 can be via the Control pressure control device 46 as desired, if the pressure intensifier 56 via the Directional control valve 62 is connected to a separate compressed air regulator, the regulated one Pressure independent of the pressure supplied to the compressed air chamber 30 is.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Insertion Pins And Rivets (AREA)
  • Press Drives And Press Lines (AREA)
  • Portable Power Tools In General (AREA)
EP02007588A 2001-04-09 2002-04-03 Dispositif d' entraînement pour outil d' insertion Expired - Lifetime EP1247599B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20106207U DE20106207U1 (de) 2001-04-09 2001-04-09 Antriebseinrichtung für ein Einpresswerkzeug
DE20106207U 2001-04-09

Publications (2)

Publication Number Publication Date
EP1247599A1 true EP1247599A1 (fr) 2002-10-09
EP1247599B1 EP1247599B1 (fr) 2007-08-08

Family

ID=7955542

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02007588A Expired - Lifetime EP1247599B1 (fr) 2001-04-09 2002-04-03 Dispositif d' entraînement pour outil d' insertion

Country Status (3)

Country Link
US (1) US6676000B2 (fr)
EP (1) EP1247599B1 (fr)
DE (2) DE20106207U1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1640081A1 (fr) * 2004-09-24 2006-03-29 Böllhoff Verbindungstechnik GmbH Procédé d'assemblage et dispositif de commande d'un outil d'assemblage
DE102009040126A1 (de) * 2009-09-04 2011-03-17 Böllhoff Verbindungstechnik GmbH Elektromotorischer Hydraulikantrieb und Verfahren zum Bereitstellen eines definierten Hydraulikdrucks und/oder -volumens

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10031073B4 (de) * 2000-06-30 2016-11-24 Gustav Klauke Gmbh Verfahren zum Vernieten
WO2002073045A2 (fr) * 2001-03-09 2002-09-19 Newfrey Llc Rivet autoperforant, procede et dispositif pour poser un element rivet et utilisation de ce dernier
US20060251495A1 (en) * 2001-03-09 2006-11-09 Reinhold Opper Self-piercing rivet, process and device for setting a rivet element, and employment thereof
GB0111265D0 (en) * 2001-05-05 2001-06-27 Henrob Ltd Fastener insertion apparatus and method
US6910263B2 (en) * 2001-12-25 2005-06-28 Newfrey Llc Self-piercing rivet setting apparatus and system
US6971159B2 (en) * 2002-02-12 2005-12-06 Illinois Tool Works Inc Tool for inserting electrical wires into an electrical connector
JP4465581B2 (ja) * 2002-11-29 2010-05-19 日立オートモティブシステムズ株式会社 重合板、重合管および重合管の張出かしめ方法、工具
DE10309249A1 (de) * 2003-03-03 2004-09-23 Siemens Ag Elektrischer Antrieb eines Formstempels
DE102004005884B4 (de) * 2004-02-05 2012-03-29 Newfrey Llc Fügeeinrichtung mit einem Stempelwerkzeug und einem Gegenwerkzeug und einem Halter
DE102005041534A1 (de) * 2005-08-31 2007-03-01 Newfrey Llc, Newark Verfahren und Vorrichtung zum Zuführen von Verbindungselementen zu einem Verarbeitungsgerät
DE102006013652B4 (de) * 2005-10-14 2010-12-16 Richard Bergner Verbindungstechnik Gmbh & Co. Kg Bearbeitungswerkzeug sowie Verfahren zum Bearbeiten eines Werkstücks
DE502008000600D1 (de) * 2007-02-13 2010-06-10 Inventio Ag Verfahren und werkzeug zum clinchen von dickblechen, sowie verwendung des werkzeugs
US8276425B2 (en) * 2007-10-02 2012-10-02 Mestek Machinery, Inc. Ductmaking apparatus
US8499604B2 (en) * 2008-10-01 2013-08-06 Mestek Machinery, Inc. Duct making apparatus and method
KR101075805B1 (ko) 2008-12-30 2011-10-25 주식회사 성우하이텍 셀프 피어싱 리벳장치용 모듈 실린더
DE202011052312U1 (de) * 2011-12-15 2013-03-18 Hartmut Flaig Schraube, Schraubenmutter, Verbindung sowie Schraubwerkzeug
JP6687537B2 (ja) 2014-01-16 2020-04-22 アトラス コプコ アイエイエス ユーケー リミテッド リベッティング方法
DE102015205995A1 (de) 2015-04-02 2016-10-06 Ribe Anlagentechnik Gmbh Antriebseinheit für eine Setzvorrichtung, insbesondere ein Nietsetzgerät
DE102017106449A1 (de) 2017-03-24 2018-09-27 Böllhoff Verbindungstechnik GmbH Mehrstufige Fügevorrichtung und Fügeverfahren dafür
DE102017125749B4 (de) 2017-11-03 2025-01-16 Böllhoff Verbindungstechnik GmbH Elektrohydraulisches Linearstellglied
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
US10898943B2 (en) 2018-09-25 2021-01-26 Ford Global Technologies, Llc Self-piercing rivet device and method of operating a self-piercing rivet device to inhibit incorrect die usage
DE102019122276A1 (de) 2019-08-20 2021-02-25 Voith Patent Gmbh Die Erfindung betrifft einen Niederhalter für einen Prozess bei Stanzen und/oder Nieten
JP2021142552A (ja) * 2020-03-13 2021-09-24 ポップリベット・ファスナー株式会社 自己穿孔型リベットの締結方法及び締結装置

Citations (4)

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Publication number Priority date Publication date Assignee Title
DE420103C (de) * 1924-10-26 1925-10-16 Eulenberg Fa Wasserdruckstiftnietmaschine
EP0755749A1 (fr) * 1995-06-07 1997-01-29 Multifastener Corporation Dispositif de guidage et/ou de fixation pour éléments, particulièrement pour éléments de fixation
DE19808016A1 (de) * 1997-09-12 1999-03-25 Eibes Kerb Konus Gmbh Stanz-Prägewerkzeug
DE19924310A1 (de) * 1999-05-27 2000-11-30 Boellhoff Gmbh Hydraulische Antriebseinrichtung für ein Fügewerkzeug

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US4010630A (en) 1976-04-08 1977-03-08 Textron, Inc. Hydraulic actuated power tool
US4259858A (en) * 1979-05-31 1981-04-07 Freeman Richard B Vacuum-pneumatic power tool
US4515302A (en) * 1981-12-21 1985-05-07 Gemcor Engineering Corp. Riveting machine
US5156313A (en) * 1990-08-08 1992-10-20 Emhart Industries, Inc. Rivet setting tool
US5199624A (en) * 1990-12-20 1993-04-06 Emhart Inc. Table top rivet setting assembly
US5323946A (en) * 1992-10-19 1994-06-28 Emhart Inc. Blind rivet setting tool

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE420103C (de) * 1924-10-26 1925-10-16 Eulenberg Fa Wasserdruckstiftnietmaschine
EP0755749A1 (fr) * 1995-06-07 1997-01-29 Multifastener Corporation Dispositif de guidage et/ou de fixation pour éléments, particulièrement pour éléments de fixation
DE19808016A1 (de) * 1997-09-12 1999-03-25 Eibes Kerb Konus Gmbh Stanz-Prägewerkzeug
DE19924310A1 (de) * 1999-05-27 2000-11-30 Boellhoff Gmbh Hydraulische Antriebseinrichtung für ein Fügewerkzeug

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1640081A1 (fr) * 2004-09-24 2006-03-29 Böllhoff Verbindungstechnik GmbH Procédé d'assemblage et dispositif de commande d'un outil d'assemblage
KR100794637B1 (ko) * 2004-09-24 2008-01-14 뵐호프 베르빈둥스테크니크 게엠베하 체결 공구용 접합 방법 및 장치
US7475473B2 (en) 2004-09-24 2009-01-13 Bollhoff Verbindungstechnik Gmbh Device for operating a fastening tool
DE102009040126A1 (de) * 2009-09-04 2011-03-17 Böllhoff Verbindungstechnik GmbH Elektromotorischer Hydraulikantrieb und Verfahren zum Bereitstellen eines definierten Hydraulikdrucks und/oder -volumens

Also Published As

Publication number Publication date
DE50210619D1 (de) 2007-09-20
EP1247599B1 (fr) 2007-08-08
US6676000B2 (en) 2004-01-13
DE20106207U1 (de) 2001-06-21
US20020144386A1 (en) 2002-10-10

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