EP1108480A2 - Dispositif et procede pour realiser un assemblage mecanique - Google Patents

Dispositif et procede pour realiser un assemblage mecanique Download PDF

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Publication number
EP1108480A2
EP1108480A2 EP00112174A EP00112174A EP1108480A2 EP 1108480 A2 EP1108480 A2 EP 1108480A2 EP 00112174 A EP00112174 A EP 00112174A EP 00112174 A EP00112174 A EP 00112174A EP 1108480 A2 EP1108480 A2 EP 1108480A2
Authority
EP
European Patent Office
Prior art keywords
joining
impact mass
force
tool
vibration
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Withdrawn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
EP00112174A
Other languages
German (de)
English (en)
Other versions
EP1108480A3 (fr
Inventor
Volker Schulte
Ortwin Hahn
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 EP1108480A2 publication Critical patent/EP1108480A2/fr
Publication of EP1108480A3 publication Critical patent/EP1108480A3/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Withdrawn legal-status Critical Current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
    • 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
    • B21J15/10—Riveting machines
    • B21J15/12—Riveting machines with tools or tool parts having a movement additional to the feed movement, e.g. spin
    • 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
    • B21J15/24—Drives for riveting machines; Transmission means therefor operated by electro-magnets
    • 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
    • B21J15/36—Rivet sets, i.e. tools for forming heads; Mandrels for expanding parts of hollow rivets

Definitions

  • This application relates to an apparatus and a method for mechanical Joining sheets, profiles and / or multi-sheet connections, whereby joining tools with Power means to be moved to the parts to be joined and by the force of the Joining tools a joining connection between the joining parts can be produced, the required Joining force through several short successive shocks of a joining tool or can be pulsed into the joint to be established at an excitation frequency, at least one joining tool is connected to the holding frame of the device via a holder connected, and means or method steps are provided, the joining forces at least partially to isolate vibration and / or to dampen vibration.
  • a mechanical joining device is shown, for example, in EP 0 890 397 A1.
  • the reaction forces of To reduce the joining process by using a joining tool the joining force at an excitation frequency introduces into the joint that is above the natural frequency of the opposite Joining tool is located and the storage of at least one joining tool vibration isolated is.
  • the vibration isolation can also exclusively or additionally in the excited Joining tool or the parts to be joined.
  • the joining force is thus in the form of Impulses or vibrations initiated, both without and with a superposition low quasi-static base load acts on the components to be joined.
  • the dynamic top forces are suitably coordinated spring / mass system shielded from the basic construction.
  • the basic construction is only a fraction of that at the joint acting joining forces.
  • this vote leads to the die swings in the opposite direction to the punch and thus a high one even with small die masses Impact efficiency is achieved.
  • the functionality of both the method and the devices designed after him have now been proven.
  • an impact mass on the side of Bracket of a joining tool is attached, which faces away from the direction in which the joining tool is arranged. If forces are dynamic in such an arrangement, in particular in the form of pulses, introduced into the joining parts and the joining tools be, and the joining tool itself is rigidly attached to the bracket, so the Harmful impulsive forces from the holding frame of the device are reduced or entirely kept away by the forces from the impact mass through an impulse-induced movement be included. With such an arrangement, the basic construction remains free of impulsive loads caused by the joining forces.
  • the generated by the power means successive impacts or pulsating joining forces go through in this or opposite direction, depending on where the power means are attached, the stamp that Joining parts, possibly existing joining parts, the die, the die holder and reached finally the holder on which the die or, in the case of a different direction of force, the Stamp is attached to the holding frame of the device.
  • the joining force hits the impact mass and sets this in motion, the impact mass is thus deflected by the force impulse.
  • the device remains otherwise harmful impulsive loads are released if the impact mass is designed accordingly and is arranged. Only the very low reaction forces of the springs to which the impact mass supported, act on the device. The requirements for leadership accuracy the impact mass are very low.
  • the natural frequency of the vibration system is approximately in a range of 35-65%, preferably approximately 50% of the beat frequency of the Percussion.
  • the impact mass is at least one Spiral spring guided.
  • the spiral spring takes over the guiding and Suspension task.
  • the impact surface of the impact damper is light is spherical.
  • the bias and / or clamping length of an insulating or. Bending spring can be changed.
  • the natural frequency of the vibration system can be determined by suitable control and actuating devices can be changed.
  • the die side Impact damping can be combined with a vibration isolation on the stamp or Vibration damping.
  • the joining parts 2 can be seen, under which the die holder 4 is located.
  • the die holder 4 is connected to the holder 6 via a connector.
  • Under the Bracket 6 is an impact mass 8 which is movable in the direction of the arrow shown is.
  • the movement of the impact mass 8 can, on the one hand, via insulating springs 10 and insulating dampers 12 are caught and damped.
  • the impact mass 8 is in a guide housing 14 stored in which the impact mass 8, the insulating springs 10 and the insulating damper 12 are arranged are. If a joining force is now created in the joining parts 2 to produce a joining connection is introduced by means of a stamp, this joining force is transferred to the die holder 4 via the die arranged in the die holder 4 and not shown in detail.
  • the power continues to flow through the connector into the bracket 6. From there it would on the Holding frame 16 of the device act if it is not reduced in the area of the holder 6 or would be compensated entirely. This is now done via the movement of the impact mass 8.
  • the impulsive force is transferred from the bracket 6 to the impact mass 8 and sets it in Move.
  • the impact mass moves against the force of the insulating springs 10 and Isolierdampfers 12.
  • the force stored in the springs brakes the impact mass 8 and moves them back to their starting position.
  • the force necessary for the movement of the Impact mass is required no longer has to be absorbed by the holding frame 16, the then can be carried out correspondingly easier.
  • a vibration system can be developed, the Components can be coordinated with one another as desired.
  • a joining device can be created using the thickness of the insulating springs and insulating dampers is ideally matched to the needs of the user.
  • FIG. 2 shows an example of how the impact mass 8 could be guided.
  • the Requirements for the guiding accuracy of the impact mass 8 are very low. In a very simple and therefore preferred embodiment, it can be without sliding or rolling Parts can already be reached by appropriately designed springs or spiral springs 18.
  • the spiral spring 18 bends. It guides the impact mass 8 during the deflection and absorbs the kinetic energy that is required to move the impact mass 8 back to the starting position.
  • the leadership and Suspension is carried out without wear and without impairing the vibration properties a longer operating time.
  • the spiral spring 18 is very light on a different natural frequency of the impact damper 8 adjustable by changing the clamping length of the spiral spring 18.
  • the spiral spring 18 having a displaceable clamping 20 and a fixed clamping 22 is held.
  • the adjustable clamping 20 By moving the adjustable clamping 20, the device can be adapted to striking mechanisms with different impact frequencies This means that striking mechanisms built according to this principle are very universal.
  • By a Combination with suitable control and adjustment devices can vary the Natural frequency of the impact mass damper in a simple manner even during the joining process take place, which opens up new possibilities in litigation.
  • the impact surface of the impact mass 8 can also be slightly spherical be carried out in order to always ensure safe impulse transmission to the earth.
  • the face should not be smaller than the lower cross section of the Matrix holder, since otherwise unwanted reflections can occur and the pulse cannot be transferred completely to the impact mass, which leads to dynamic Loads on the basic structure.
  • the analog stamp-side use is one vibrating impact mass is less advantageous than the suspension of the striking mechanism according to the known principle of vibration isolation or alternatively the Vibration damping.
  • advantageous embodiments of the suspension of the striking mechanism are shown in Figures 4 and 5.
  • a delivery unit 24 moves the stamp 34 onto the Add joint.
  • the striking mechanism 30 generates during the infeed movement pulse-shaped forces that are transmitted to the stamp 34 via the stamp holder 32.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Prevention Devices (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Forging (AREA)
  • Laminated Bodies (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
EP00112174A 1999-12-09 2000-06-07 Dispositif et procede pour realiser un assemblage mecanique Withdrawn EP1108480A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19959261 1999-12-09
DE19959261 1999-12-09

Publications (2)

Publication Number Publication Date
EP1108480A2 true EP1108480A2 (fr) 2001-06-20
EP1108480A3 EP1108480A3 (fr) 2003-02-05

Family

ID=7931916

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00112174A Withdrawn EP1108480A3 (fr) 1999-12-09 2000-06-07 Dispositif et procede pour realiser un assemblage mecanique

Country Status (4)

Country Link
EP (1) EP1108480A3 (fr)
JP (1) JP2001179468A (fr)
BR (1) BR0004885A (fr)
DE (1) DE10060035A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2754512A1 (fr) * 2013-01-11 2014-07-16 Volkswagen Aktiengesellschaft Dispositif d'assemblage et procédé d'assemblage sans avant-trou de composants au moyen d'un élément d'assemblage soumis à des impulsions de force
EP3120951A1 (fr) * 2015-07-24 2017-01-25 Robert Bosch Gmbh Dispositif de rivetage et dispositif de fabrication

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10161250B4 (de) 2001-12-13 2004-05-06 Daimlerchrysler Ag Verfahren zum mechanischen Fügen von Blechen
WO2006074105A1 (fr) * 2005-01-03 2006-07-13 3M Innovative Properties Company Reglage d’intervalle pour un systeme de soudure ultrasonore
CN105414734B (zh) * 2015-12-30 2018-11-13 苏州润昇精密机械有限公司 一种立式超声波焊接机
CN105397273B (zh) * 2015-12-30 2018-03-13 苏州润昇精密机械有限公司 一种立式金属超声波焊接机机架
DE102020104529B4 (de) 2020-02-20 2023-03-02 Technische Universität Chemnitz Vorrichtung und Verfahren zum mechanischen Fügen von Hohlprofilen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4660403A (en) * 1985-12-19 1987-04-28 Weldex, Inc. Die assembly
DE69112824D1 (de) * 1990-04-03 1995-10-12 Webb Nietwerkzeug zum verbinden von blechen.
DE4111102A1 (de) * 1991-04-05 1992-10-08 Fraunhofer Ges Forschung Vorrichtung zum verbinden von sich ueberlappenden bauteilen
DE19729368A1 (de) * 1997-07-09 1999-01-14 Ortwin Hahn Vorrichtung und Verfahren zum mechanischen Fügen von Blechen, Profilen und/oder Mehrblechverbindungen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2754512A1 (fr) * 2013-01-11 2014-07-16 Volkswagen Aktiengesellschaft Dispositif d'assemblage et procédé d'assemblage sans avant-trou de composants au moyen d'un élément d'assemblage soumis à des impulsions de force
EP3120951A1 (fr) * 2015-07-24 2017-01-25 Robert Bosch Gmbh Dispositif de rivetage et dispositif de fabrication

Also Published As

Publication number Publication date
JP2001179468A (ja) 2001-07-03
EP1108480A3 (fr) 2003-02-05
BR0004885A (pt) 2001-09-25
DE10060035A1 (de) 2001-08-09

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