WO1999021668A1 - Verfahren und vorrichtung zum mechanischen fügen - Google Patents
Verfahren und vorrichtung zum mechanischen fügen Download PDFInfo
- Publication number
- WO1999021668A1 WO1999021668A1 PCT/EP1998/006507 EP9806507W WO9921668A1 WO 1999021668 A1 WO1999021668 A1 WO 1999021668A1 EP 9806507 W EP9806507 W EP 9806507W WO 9921668 A1 WO9921668 A1 WO 9921668A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- joining
- impact
- stamp
- die
- sheet metal
- 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.)
- Ceased
Links
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
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/03—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal otherwise than by folding
- B21D39/031—Joining superposed plates by locally deforming without slitting or piercing
-
- 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
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
- Y10T29/49936—Surface interlocking
-
- 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
- Y10T29/53996—Means to assemble or disassemble by deforming
Definitions
- the invention relates to a method and a device for the mechanical joining of sheet metal parts according to the preamble of claims 1 and 15, respectively.
- sheet metal parts to be joined at connection points are formed under the action of tool sets, each consisting of a punch and a die, the small spatial structures, the joining elements.
- These joining elements are formed in that the sheet metal material of the sheet metal parts lying flat on top of one another is moved out of the sheet metal plane and compressed in a joining area. From a constructive point of view, this creates non-releasable joining elements through mechanical joining.
- a volume region can either be pressed out or pushed through from the sheet metal parts and then deformed by upsetting, so that its width increases. In this respect, one speaks of clinching.
- auxiliary joining parts can be in shape of punch rivets can be incorporated into the joining element during joining.
- the individual sheet thicknesses are usually in the range between 0, 5 and 3 mm.
- the forming energies to be applied for these mechanical joining processes are each applied by a press stroke, which provides the necessary pressing forces as joining forces.
- the pressing forces are usually in the range between 20 and 100 kN.
- a joining tool that can be used for this purpose is known, for example, from EP-B-77932.
- a joining area is delimited by a punch driven by a press and a stationary die. If the punch is moved in the direction of the die, the material of the sheets is deep-drawn into a cavity of the die. If the sheet on the die side reaches the bottom of the cavity, which is formed by an anvil, and the pressure on the punch is maintained or increased, the bottom of the joint section which has been pushed through can expand laterally, since the material is compressed and the walls delimiting the die cavity on the side evade .
- An advantage of such joining tools is that both the penetration and the upsetting of the sheet material can be carried out with a single press stroke.
- the elements defining the side walls of the die cavity have a high strength on the one hand to serve as an abutment when pushing through, but on the other hand must be sufficiently flexible to be able to evade during upsetting. If you distribute both functions on separate elements, the matrix design becomes more complex.
- the object of the invention is therefore to provide a method for mechanical joining according to the preamble of claim 1, which enables the use of lower-cost devices which are easier and taking into account the costs of the drive units.
- the forming energy is generated by an impact stress in the form of serially occurring blows of short duration.
- an impacted accelerated mass transmits several impulses, which lead to an impact load.
- the energy supplied in each individual step must be sufficient to shape the material into the plastic area while passing through the elastic range of the deformation characteristic. It is preferred not to go far beyond this minimum energy in order to make full use of the advantages of the method according to the invention.
- the entirety of the individual blows of a mechanical joining then results in the desired joining element, which thus arises in partial steps.
- the minimum single-step energy is surprisingly low, making it possible to create small, light and inexpensive joining devices even for joining steel sheets twice 0.5 mm and above. Since the respective reaction forces must also be absorbed in each individual step, relatively light C-arms or analog brackets can also be used.
- a device according to the invention for an impact joining with single impact is specified in claim 15.
- FIG. 1 shows a largely schematic side view, partly in section, of a first exemplary embodiment of a joining device with which the method according to the invention can be carried out
- FIG. 2 shows a largely schematic side view, partly in section, of a second exemplary embodiment of a joining device with which the method according to the invention can be carried out.
- the joining tool set further comprises a stamp 16.
- the die 14 and the stamp 16 are of a type such as is disclosed, for example, in the aforementioned EP-B-77932.
- the punch 16 is fastened to a guide piston 18 which is guided straight in a bore 20 of a shoulder 22 of the C-bracket 12 and is secured against rotation.
- the Piston 18 has a collar 24 and a spring 26 is clamped between the collar 24 and a shoulder 28 which presses the guide piston 18 in the direction of the die 14. In the starting position shown here, the punch 16 is thus held or pretensioned with its working surface against the workpieces to be joined in order to prevent the punch 16 from lifting off from the sheet metal parts 30 in an initial phase of the joining process.
- Sheets 30 to be joined rest on a support element 32, shown broken away, and are secured in the joining position by a clamp holder 34, which is preferably deliverable and also broken away.
- the sheets 30 to be joined are at least two sheets 30 lying one on top of the other, it being quite common for more than two sheets 30 to be connected by punctiform joining elements.
- the joining is done with a path limitation, e.g. a pneumatic pressure cut-off, designed to interrupt or end a stroke sequence, as will be explained below.
- the necessary and sufficient joining path “X” is the distance between the collar 24 and a stop flange 36. In other embodiments, the joining path can also be adjustable.
- the extension 22 has, in the extension of its bore 20, a straight guide bore 38 for an impact mass 40.
- the striking mass 40 is driven in the direction of the arrow for a reciprocating movement relative to the guide piston 18.
- the impact mass 40 is formed here by a free-flying piston, the two sides of which can be acted upon alternately and with rapid succession of compressed air. Compressed air inlets and outlets are not shown because they can be attached in a known manner.
- the impact mass 40 works in a striking manner against the guide piston 18, which transmits the impact to the plunger 16 in each case.
- the punch 16 thereby becomes an impact tool which introduces an impact stress into the sheets 30.
- a sequence of individual hits is generated by the alternating application of the impact mass 40 in order to join the joining path “X” by impact stress.
- the impact energy of the individual hits results in the punch 16 executing a single joining in partial joining sections, with each single hit the punch 16 from one The previously taken partial joining position is moved further towards the die 14 until the joining is completed.
- the number of beats is preferably 10 to 50 beats, in particular 10 to 25 beats, per second.
- the number of blows is particularly dependent on the type of material of the sheets, i.e. Aluminum, steel, high-strength steel etc, and the sheet thickness.
- the path limitation already mentioned can be provided.
- the impact stress of the sheets 30 caused by the impact mass 40 in the form of series-occurring impacts are impacts with a short impact duration, which are preferably generated in rapid succession.
- the stroke duration of a stroke is preferably selected in the range between 0.02 and 5 ms, in particular 0.1 to 0.9 ms.
- the shortness of the stroke is intended to ensure that the inertia of a countermeasure assigned to the moving impact mass 40, here the lower leg 10, is essentially not overcome.
- a usual joining time can then be less than one second with a sequence of, for example, 4 to 10 individual blows when mechanically joining sheets 30 made of aluminum with sheet thicknesses of 1 mm each.
- an arrow 42 indicates that the opening width of the bracket is adjustable, for example in order to guide the bracket over a bend behind which the joining is to be carried out.
- the clamp holder can also serve as a wiper of the joined sheets 30 from the punch 16.
- the usual spring-loaded wipers on the die side are less suitable here, since they would brake the transmission of impulses from the impact mass 40 to the guide piston.
- the stamp 16 together with its guide piston 18 must of course be pressed upwards against the force of the spring 26.
- the striking mass 40 oscillating up and down with the air column or a striking spring of a pneumatic drive can represent a vibrating system which is operated outside its resonance frequency, preferably far below its resonance frequency. Then the assembly, consisting of extension 22 and C-bracket, remains largely at a standstill, so that the device can be easily guided by hand.
- the joining is produced by means of a single stroke of the stamp 16, which it passes through in several discrete steps.
- the mounting of the punch and die can be pliers-shaped.
- a force redirection over an inclined plane can also be provided.
- systems with several or many sets of joining tools are also conceivable, in which a single large common counter-mass is provided behind the matrices.
- a device for mechanically joining sheet metal parts accordingly comprises a tool set comprising at least one punch 16 and a die 14 having an anvil as tool set elements, between which the sheets 30 to be connected lie flat one above the other, at least one tool set element 16 or 14 for loading the sheet metal parts 30 with of a forming energy is movable, and the movable tool element is designed as a striking tool with a moving mass 40, with which a striking stress in the form of serial strikes of short duration can be introduced into the sheet metal parts 30.
- Fig. 2 shows a second embodiment of a joining device, which differs from that described to Fig. 1 only in that the positions of y
- the impact mass 40 is accelerated either electromechanically or pneumatically or by means of an arrangement which performs a periodic up and down movement in an axial direction.
- the ignition of an explosive can also be used.
- the different drive means all enable percussion joining according to the invention.
- the tool element which is not designed as a striking tool, can additionally be designed to be movable with respect to the striking tool. 1, the die 14 can then additionally be moved towards the punch 16.
- the joining device according to the invention can be designed with a long projection.
- the lower leg 10 according to FIG. 1 can be designed as a long-armed, one-armed lever which extends from the C-bracket 12. The same naturally applies to the leg which bears the associated stamp 16.
- a method according to the invention for the mechanical joining of sheet metal parts in which sheet metal material is displaced and compressed together from a sheet metal plane under the action of a forming energy by means of a tool set comprising at least one punch and a die having an anvil, it is accordingly provided that the forming energy or forming work is carried out an impact stress is generated in the form of serial strikes of short duration.
- the reaction forces can be absorbed by a counterweight arranged on the side of the tool set facing away from the impacting mass.
- the size of the pulses can be dimensioned such that the forming energy supplied per pulse causes a relatively small plastic deformation of the materials to be joined.
- the impact sequence of the individual impacts, the number of impacts as well as their duration can be selected, as described above for the joining devices in connection with FIGS. 1 and 2. Furthermore, an impact work taken up by the sheets 30 due to the impact stress per impact can preferably be in the range of 7 to 20 joules.
- auxiliary joining part can be incorporated into the joining.
- Auxiliary joining parts are punch rivets, in particular those with semi-hollow rivets, which remain in the joining zone.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Automatic Assembly (AREA)
- Press Drives And Press Lines (AREA)
- Forging (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
- Portable Nailing Machines And Staplers (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002275976A CA2275976C (en) | 1997-10-25 | 1998-10-14 | Method of, and apparatus for, mechanical joining |
| AT98954413T ATE240172T1 (de) | 1997-10-25 | 1998-10-14 | Verfahren und vorrichtung zum mechanischen fügen |
| JP52312799A JP2001507285A (ja) | 1997-10-25 | 1998-10-14 | 機械的接合方法及び装置 |
| AU11537/99A AU1153799A (en) | 1997-10-25 | 1998-10-14 | Mechanical assembly process and device |
| DE59808356T DE59808356D1 (de) | 1997-10-25 | 1998-10-14 | Verfahren und vorrichtung zum mechanischen fügen |
| PL33423998A PL187856B1 (pl) | 1997-10-25 | 1998-10-14 | Sposób i urządzenie do mechanicznego łączenia elementów z blachy |
| EP98954413A EP0948418B1 (de) | 1997-10-25 | 1998-10-14 | Verfahren und vorrichtung zum mechanischen fügen |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19747267A DE19747267C2 (de) | 1997-10-25 | 1997-10-25 | Verfahren zum Durchsetzfügen und Vorrichtung zu seiner Durchführung |
| DE19747267.2 | 1997-10-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1999021668A1 true WO1999021668A1 (de) | 1999-05-06 |
Family
ID=7846666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP1998/006507 Ceased WO1999021668A1 (de) | 1997-10-25 | 1998-10-14 | Verfahren und vorrichtung zum mechanischen fügen |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US20020038504A1 (de) |
| EP (1) | EP0948418B1 (de) |
| JP (1) | JP2001507285A (de) |
| AT (1) | ATE240172T1 (de) |
| AU (1) | AU1153799A (de) |
| CA (1) | CA2275976C (de) |
| DE (2) | DE19747267C2 (de) |
| ES (1) | ES2200386T3 (de) |
| PL (1) | PL187856B1 (de) |
| WO (1) | WO1999021668A1 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002068139A1 (en) * | 2001-02-26 | 2002-09-06 | Attexor Clinch Systems Sa | A method for making joints between sheet formed members |
| US9339899B2 (en) | 2010-11-10 | 2016-05-17 | Henrob Limited | Fastening method and apparatus |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19929778B4 (de) * | 1998-09-07 | 2006-04-13 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren und Vorrichtung zum dynamischen Verbinden von plattenförmigen Bauteilen |
| EP1132158A1 (de) * | 2000-03-06 | 2001-09-12 | Hahn, Ortwin, Prof. Dr.-Ing. | Verfahren und Vorrichtung zum mechanischen Fügen von metallischen Bauteilen |
| DE10030283C2 (de) * | 2000-06-20 | 2002-06-20 | Fraunhofer Ges Forschung | Verfahren zum umformtechnischen Verbinden von plattenförmigen Bauteilen |
| DE102004038208B4 (de) * | 2004-08-05 | 2008-11-13 | Daimler Ag | Verfahren und Werkzeugeinrichtung zum Umformen |
| DE102004038209B4 (de) * | 2004-08-05 | 2008-11-13 | Daimler Ag | Werkzeugeinrichtung und Verfahren zum Umformen |
| DE102004052009B3 (de) * | 2004-10-25 | 2005-12-08 | Eckold Gmbh & Co Kg | Vorrichtung zum mechanischen Fügen oder dergleichen |
| US7698797B2 (en) * | 2005-02-02 | 2010-04-20 | Ford Global Technologies | Apparatus and method for forming a joint between adjacent members |
| DE102005038470B4 (de) * | 2005-08-13 | 2022-08-25 | Eckold Gmbh & Co. Kg | Umformwerkzeug und Verfahren zum Positionieren des Umformwerkzeugs |
| GB0813883D0 (en) * | 2008-07-30 | 2008-09-03 | Henrob Ltd | Joining apparatus and method |
| DE102013217633A1 (de) | 2013-09-04 | 2015-03-05 | Profil Verbindungstechnik Gmbh & Co. Kg | Stanzniet und Verfahren zur Befestigung einzelner Bauteile aneinander, von denen mindestens ein Bauteil durch ein Werkstück aus Verbundmaterial gebildet ist |
| DE102013217632A1 (de) | 2013-09-04 | 2015-03-05 | Profil Verbindungstechnik Gmbh & Co. Kg | Stanzniet sowie Verfahren und Vorrichtungen zur Befestigung einzelner Bauteile aneinander, von denen mindestens ein Bauteil durch ein Werkstück aus Verbundmaterial gebildet ist |
| DE102013217640A1 (de) | 2013-09-04 | 2015-03-05 | Profil Verbindungstechnik Gmbh & Co. Kg | Verfahren zur Anbringung eines Befestigungselements an ein Werkstück, Kombination einer Scheibe mit einer Matrize sowie Matrize |
| DE102014113438A1 (de) | 2013-11-06 | 2015-05-07 | Profil Verbindungstechnik Gmbh & Co. Kg | Verfahren zum Verbinden von Blechteilen und Zusammenbauteil sowie Setzkopf und Matrize |
| CN204221410U (zh) * | 2014-10-15 | 2015-03-25 | 富鼎电子科技(嘉善)有限公司 | 压合机构 |
| PL73760Y1 (pl) * | 2024-03-05 | 2025-01-20 | Gabriel Kwiatkowski | Osłona do przymocowania do młota pneumatycznego |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1087440A (fr) * | 1953-07-31 | 1955-02-23 | Soudure Elec Languepin | Procédé et dispositif pour l'assemblage à froid de matériaux |
| US3465414A (en) * | 1965-10-18 | 1969-09-09 | Albert C Koett | Pneumatic stitcher and method of stitching |
| DE2213810A1 (de) * | 1972-03-22 | 1973-09-27 | Jurid Werke Gmbh | Pneumatisch betaetigbare nietvorrichtung |
| GB2073079A (en) * | 1980-02-14 | 1981-10-14 | L & H Designs | Fastening apparatus and control systems therefor |
| DE3131301A1 (de) * | 1981-08-07 | 1983-02-24 | Siemens AG, 1000 Berlin und 8000 München | "vorrichtung zum verbinden mindestens zweier duennwandiger werkstuecke durch ein scher-quetsch-verfahren" |
| EP0077932A1 (de) * | 1981-10-28 | 1983-05-04 | WALTER ECKOLD GmbH & Co. KG Vorrichtungs- und Gerätebau | Vorrichtung zum nietartigen Verbinden von Blechen |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3640896A1 (de) * | 1986-11-29 | 1988-06-16 | Eckold Vorrichtung | Verfahren und vorrichtung zum nietartigen verbinden von blechen |
-
1997
- 1997-10-25 DE DE19747267A patent/DE19747267C2/de not_active Expired - Fee Related
-
1998
- 1998-10-14 AU AU11537/99A patent/AU1153799A/en not_active Abandoned
- 1998-10-14 US US09/331,509 patent/US20020038504A1/en not_active Abandoned
- 1998-10-14 ES ES98954413T patent/ES2200386T3/es not_active Expired - Lifetime
- 1998-10-14 PL PL33423998A patent/PL187856B1/pl not_active IP Right Cessation
- 1998-10-14 EP EP98954413A patent/EP0948418B1/de not_active Expired - Lifetime
- 1998-10-14 AT AT98954413T patent/ATE240172T1/de not_active IP Right Cessation
- 1998-10-14 DE DE59808356T patent/DE59808356D1/de not_active Expired - Lifetime
- 1998-10-14 WO PCT/EP1998/006507 patent/WO1999021668A1/de not_active Ceased
- 1998-10-14 JP JP52312799A patent/JP2001507285A/ja not_active Ceased
- 1998-10-14 CA CA002275976A patent/CA2275976C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1087440A (fr) * | 1953-07-31 | 1955-02-23 | Soudure Elec Languepin | Procédé et dispositif pour l'assemblage à froid de matériaux |
| US3465414A (en) * | 1965-10-18 | 1969-09-09 | Albert C Koett | Pneumatic stitcher and method of stitching |
| DE2213810A1 (de) * | 1972-03-22 | 1973-09-27 | Jurid Werke Gmbh | Pneumatisch betaetigbare nietvorrichtung |
| GB2073079A (en) * | 1980-02-14 | 1981-10-14 | L & H Designs | Fastening apparatus and control systems therefor |
| DE3131301A1 (de) * | 1981-08-07 | 1983-02-24 | Siemens AG, 1000 Berlin und 8000 München | "vorrichtung zum verbinden mindestens zweier duennwandiger werkstuecke durch ein scher-quetsch-verfahren" |
| EP0077932A1 (de) * | 1981-10-28 | 1983-05-04 | WALTER ECKOLD GmbH & Co. KG Vorrichtungs- und Gerätebau | Vorrichtung zum nietartigen Verbinden von Blechen |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002068139A1 (en) * | 2001-02-26 | 2002-09-06 | Attexor Clinch Systems Sa | A method for making joints between sheet formed members |
| WO2002068139A3 (en) * | 2001-02-26 | 2003-08-28 | Attexor Clinch Systems Sa | A method for making joints between sheet formed members |
| US9339899B2 (en) | 2010-11-10 | 2016-05-17 | Henrob Limited | Fastening method and apparatus |
| US9387557B2 (en) | 2010-11-10 | 2016-07-12 | Henrob Limited | Riveting method and apparatus |
| US10005119B2 (en) | 2010-11-10 | 2018-06-26 | Henrob Limited | Fastening method and apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| PL187856B1 (pl) | 2004-10-29 |
| EP0948418A1 (de) | 1999-10-13 |
| AU1153799A (en) | 1999-05-17 |
| DE19747267C2 (de) | 1999-08-05 |
| PL334239A1 (en) | 2000-02-14 |
| EP0948418B1 (de) | 2003-05-14 |
| JP2001507285A (ja) | 2001-06-05 |
| CA2275976C (en) | 2006-08-29 |
| DE19747267A1 (de) | 1999-05-06 |
| ES2200386T3 (es) | 2004-03-01 |
| DE59808356D1 (de) | 2003-06-18 |
| US20020038504A1 (en) | 2002-04-04 |
| ATE240172T1 (de) | 2003-05-15 |
| CA2275976A1 (en) | 1999-05-06 |
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