EP1132158A1 - Méthode et dispositif pour l'assemblage mécanique de pièces en métal - Google Patents

Méthode et dispositif pour l'assemblage mécanique de pièces en métal Download PDF

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Publication number
EP1132158A1
EP1132158A1 EP01104956A EP01104956A EP1132158A1 EP 1132158 A1 EP1132158 A1 EP 1132158A1 EP 01104956 A EP01104956 A EP 01104956A EP 01104956 A EP01104956 A EP 01104956A EP 1132158 A1 EP1132158 A1 EP 1132158A1
Authority
EP
European Patent Office
Prior art keywords
shock wave
shock
stamp
wave conductor
waves
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.)
Withdrawn
Application number
EP01104956A
Other languages
German (de)
English (en)
Inventor
Ortwin Prof. Dr. Hahn
Volker Dr. Schulte
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.)
Hahn Ortwin Prof Dr-Ing
Original Assignee
Hahn Ortwin Prof Dr-Ing
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 Hahn Ortwin Prof Dr-Ing filed Critical Hahn Ortwin Prof Dr-Ing
Publication of EP1132158A1 publication Critical patent/EP1132158A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • 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
    • B21J15/12—Riveting machines with tools or tool parts having a movement additional to the feed movement, e.g. spin

Definitions

  • the invention relates to a method for mechanical joining (e.g. clinching and punch rivets) of superimposed surfaces of thin components, such as e.g. B. sheets, and a device for its implementation according to the Preambles of claims 1 and 2. Examples of such methods and Devices are disclosed in DE 197 77 267 C2 and EP 0 890 397 A1.
  • the object of the invention is a joining method according to the preamble of Claim 1 and devices applicable to it according to the preamble of Claim 2 to create a much less high structure of the Stamp, the shock wave conductor and the percussion part of the Allow device.
  • this task is characterized by the in Part of claim 1 and with regard to possible embodiments of the Device by the in the characterizing part of claims 2, 3 and 5 specified features solved.
  • the deflection of the shock waves makes it possible to move the striking mechanism laterally and to be arranged at a large distance from the stamp, which is an essential results in a slimmer construction of the joining device.
  • Such a joining device shows much less unfavorable "interference contours" and is in their Possible applications with regard to their accessibility to the connection points comparable to a resistance spot welding gun.
  • the aim should be that of Impact mechanism in the shock wave conductor generated pressure waves on a large scale also arrived in the stamp as such and not on its way there Reflection can be converted into draft waves. This is achieved through the in claims 2, 3 and 5 claimed three different Device versions.
  • the first version of the device is essentially characterized by that the shock wave conductor is angled, with the legs at least largely straight and the intermediate piece in the largest possible Arc run. This causes most of the pressure waves to transition from one leg to the other at a large obtuse angle reflected, so that they arrive in the stamp as pressure waves.
  • the second version is in the transition area from one to the other other leg of the shock wave guide targeted a reflective surface arranged.
  • This version is characterized in that the Shock wave conductor is angled, the outer angular edge as a reflection surface is obliquely flattened and the flattening is so large and in such a way Angle runs that its projection surface from the perspective of each of the free Leg ends the size of the vertical cross-sectional area of the tied thighs.
  • This reflective surface reflects that on it incident pressure waves at only a small angle to the central axis of the second leg, so that they are also in their predominant amount Pressure waves get into the stamp.
  • a mass body on the reflection surface to press by a spring system
  • the surface of the mass body, with which it bears on the reflection surface is larger than the reflection surface and this towers on all sides, as well as the natural frequency of the spring-mass system is half the pulse frequency.
  • This additional mass ensures that a pressure wave arriving at the deflecting surface predominantly also as Pressure wave and not as a tensile wave is reflected. It is advantageous if the additional mass consists of a material that is larger Has wave resistance than the shock wave conductor.
  • the shock wave deflection takes place by interposing a force deflection part.
  • a force deflection part is characterized in that the shock wave conductor is made in two parts and the two shock wave guide parts are at an angle to each other that an angled impact body around between the two shock wave conductor parts a pivot point located inside between the legs can be pivoted is arranged that the impact body with its one leg end on the impulse input side of the first shock wave conductor part rests under spring pressure and that the impact body with its other leg end from the second Leg receiving second shock wave guide part is spaced. It is it is important that the pressure of the spring is chosen so that the impact body after its swinging out again when the following impulse arrives on first shock wave conductor part is present.
  • a piston driven by compressed air can be used as the striking mechanism. However, it is particularly useful for reducing the strong hitting noise advantageous if the pulse generation by one or more in a row switched piezo-electric actuators takes place.
  • the series connection The advantage of several actuators is that the Stroke amplitude and thus a larger stamp stroke is achieved.
  • the piezo-electric Actuators are also well suited for generating one pulsating force.
  • shock waves introduced into the die are applied to another advantageous embodiment of the device via a shock wave conductor derived, which is designed in the same way as that of the shock waves Stamp conductive shock wave conductor. This also builds the lower part of the Joining device less high than in the known embodiments.
  • the devices according to the invention become the shock wave conductors connected to the stamp and to the die of the upper or lower pliers arm of the scissor-type construction Carrying device of the joining tool is formed.
  • This embodiment enables a very simple and slim structure of the whole Contraption.
  • FIG. 1, 7 and 8 Joining device are constructed according to the scissors principle, the upper one Forceps arm 1 and the lower forceps arm 2 can be pivoted at pivot point 3 are interconnected. Both the upper and lower pliers arms 1 and 2 extend with their end sections 4 and 5 over the pivot point 3 out. A delivery unit is located between these two end sections 4 and 5 6 arranged, which opens the front pliers ends or towards each other emotional.
  • Such a pair of scissors pliers with the arrangement of Delivery unit, the latter behind the center of gravity of the Scissor tongs are arranged, the joining device enables a slim Construction of the device and improves the manageability by favorable distribution of the inert masses.
  • both the upper arm 1 and the lower arm 2 each one Shock wave guides 9 and 10.
  • These shock wave guides 9 and 10 are backward passed through a bracket 11, 12 carrying them.
  • Striking mechanism 14 a On that through the End protruding end 13 of the shock wave guide 9 acts Striking mechanism 14 a.
  • the impulses generated by the striking mechanism 14 are from the shock wave conductor 9 as pressure waves into the angled leg 20 of the shock wave conductor 9 and transferred from here to the stamp 7.
  • the Percussion mechanism 14 is by a spring 15 against the end 13 of the Shock wave conductor 9 pressed.
  • the lower die arm 2 receiving the die 8 is also as Shock wave guide trained.
  • the end of this shock wave conductor 10 protrudes its rear end 16 through the bracket 12.
  • This rear end 16 of the shock wave conductor 10 is an impact mass 17 by the Spring 18 pressed.
  • This spring impact mass system dampens that of the Matrix 7 on the shock wave conductor 10 passed shock waves.
  • the intermediate piece 21 of the shock wave conductor connecting the two legs 9 to be designed so that the pressure waves deflected into this intermediate piece at the end of the vertical leg 20 and thus on the stamp 7 as pressure waves and did not arrive as draft waves.
  • the intermediate piece 21 - as shown in Figure 2 - is arcuate designed, with an arc chosen with the largest possible radius should be.
  • FIG. 3 Another possible embodiment is shown in FIG. 3, wherein the shock waves guided by the horizontal leg 19 on the Surface 22 are reflected in the vertical leg 20.
  • the striking mechanism 14 generated shock waves by a pivotally mounted impact body 31 redirected.
  • the generated by the striking mechanism 14 in the shock waveguide 32 Pressure waves are emitted by the latter into the leg 35 of the impact body 31 brought in.
  • the impact body pivots about its pivot point 34 in Direction of arrow B and strikes with the free end of its leg 36 against the shock wave guide 33 and generated in this shock wave guide Pressure waves that are transmitted from it to the stamp 7.
  • the Baffle 31 is after its pivoting in the direction of arrow B from the return spring 37 is pivoted back into its original position.
  • the force of the return spring 37 is so chosen that the impact body 31 after it swings out upon arrival of the subsequent pulse is again applied to the first shock waveguide part 32.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Resistance Welding (AREA)
EP01104956A 2000-03-06 2001-03-01 Méthode et dispositif pour l'assemblage mécanique de pièces en métal Withdrawn EP1132158A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10010340 2000-03-06
DE10010340 2000-03-06

Publications (1)

Publication Number Publication Date
EP1132158A1 true EP1132158A1 (fr) 2001-09-12

Family

ID=7633344

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01104956A Withdrawn EP1132158A1 (fr) 2000-03-06 2001-03-01 Méthode et dispositif pour l'assemblage mécanique de pièces en métal

Country Status (2)

Country Link
US (1) US20010025518A1 (fr)
EP (1) EP1132158A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120260491A1 (en) * 2009-10-16 2012-10-18 Bollhoff Verbindungstechnik Gmbh Setting device, supply module for the setting device, and a joining method for connecting at least two components

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6338765B1 (en) * 1998-09-03 2002-01-15 Uit, L.L.C. Ultrasonic impact methods for treatment of welded structures
GB0813883D0 (en) * 2008-07-30 2008-09-03 Henrob Ltd Joining apparatus and method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0815980A1 (fr) * 1996-06-25 1998-01-07 Jean-Noel Babu Pinces pour l'assemblage de produits métalliques plats
EP0890397A1 (fr) * 1997-07-09 1999-01-13 Hahn, Ortwin, Prof. Dr.-Ing. Appareil et procédé de joindre Mécaniquement des tÔles, des profilés et/ou des connections de tÔles multiples
DE19747267A1 (de) * 1997-10-25 1999-05-06 Eckold Ag Verfahren zum Durchsetzfügen und Vorrichtung zu seiner Durchführung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0815980A1 (fr) * 1996-06-25 1998-01-07 Jean-Noel Babu Pinces pour l'assemblage de produits métalliques plats
EP0890397A1 (fr) * 1997-07-09 1999-01-13 Hahn, Ortwin, Prof. Dr.-Ing. Appareil et procédé de joindre Mécaniquement des tÔles, des profilés et/ou des connections de tÔles multiples
DE19747267A1 (de) * 1997-10-25 1999-05-06 Eckold Ag Verfahren zum Durchsetzfügen und Vorrichtung zu seiner Durchführung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120260491A1 (en) * 2009-10-16 2012-10-18 Bollhoff Verbindungstechnik Gmbh Setting device, supply module for the setting device, and a joining method for connecting at least two components
US9149863B2 (en) * 2009-10-16 2015-10-06 Bollhoff Verbindungstechnik Gmbh Setting device, supply module for the setting device, and a joining method for connecting at least two components

Also Published As

Publication number Publication date
US20010025518A1 (en) 2001-10-04

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