EP0890397B1 - Appareil et procédé de joindre mécaniquement des tôles, des profilés ou des connections de tôles multiples - Google Patents

Appareil et procédé de joindre mécaniquement des tôles, des profilés ou des connections de tôles multiples Download PDF

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Publication number
EP0890397B1
EP0890397B1 EP98112439A EP98112439A EP0890397B1 EP 0890397 B1 EP0890397 B1 EP 0890397B1 EP 98112439 A EP98112439 A EP 98112439A EP 98112439 A EP98112439 A EP 98112439A EP 0890397 B1 EP0890397 B1 EP 0890397B1
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EP
European Patent Office
Prior art keywords
joining
joining tool
parts
loop
force
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
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EP98112439A
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German (de)
English (en)
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EP0890397A1 (fr
Inventor
Ortwin Prof.Dr.-Ing. Hahn
Volker Schulte
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Hahn Ortwin Prof Dr-Ing
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Hahn Ortwin Prof Dr-Ing
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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
    • B21J15/02—Riveting procedures
    • B21J15/025—Setting self-piercing rivets
    • 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
    • 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
    • Y10T29/49764—Method of mechanical manufacture with testing or indicating
    • 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
    • Y10T29/49764—Method of mechanical manufacture with testing or indicating
    • Y10T29/49778—Method of mechanical manufacture with testing or indicating with aligning, guiding, or instruction
    • Y10T29/4978—Assisting assembly or disassembly
    • 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
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49938—Radially expanding part in cavity, aperture, or hollow body
    • 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
    • Y10T29/53004—Means to assemble or disassemble with means to regulate operation by use of templet, tape, card or other replaceable information supply
    • 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
    • Y10T29/53039—Means to assemble or disassemble with control means energized in response to activator stimulated by condition sensor
    • Y10T29/53061—Responsive to work or work-related machine element
    • Y10T29/53065—Responsive to work or work-related machine element with means to fasten by deformation
    • 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
    • Y10T29/53535—Means to assemble or disassemble including means to vibrate work
    • 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
    • Y10T29/53796—Puller or pusher means, contained force multiplying operator
    • Y10T29/53839—Puller or pusher means, contained force multiplying operator having percussion or explosive operator
    • 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
    • Y10T29/53909—Means comprising hand manipulatable tool
    • Y10T29/5393—Means comprising impact receiving tool
    • 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
    • Y10T29/53909—Means comprising hand manipulatable tool
    • Y10T29/5393—Means comprising impact receiving tool
    • Y10T29/53935—C-frame
    • 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 mechanical joining of superposed sheets, profiles or multi-sheet joints, wherein Joining tool parts with power to the joining parts to be moved and through the Force of the joining tool a joint between the parts to be joined will be produced.
  • the disadvantage of the shot-like operation is the fact that Considerable precautions must be taken to make it safe to use do.
  • the propellant charges used for the shot-type operation are potentially dangerous in case of improper handling.
  • DE 197 18 576 a generic device and a generic method for mechanical Joining techniques described.
  • Figures 4 and 5 is a typical Force / displacement diagram for the working movement of the punch shown.
  • the de 197 18 576 teaches only one or more working organs for the production a mechanical joint connection in their movement and / or force to control or to settle, but without going to the fundamental problem of reducing the high To enter forces for the production of a mechanical joint connection.
  • the required deformation energy through Hydraulic cylinder applied in a single quasi-continuous Lifting make the respective joint connection.
  • no Hints contain, in which way by smaller joining forces the procedure and the device for the production of joint connections can be improved.
  • the object is achieved by according to the inventive method the Required joining force by several short-term successive bumps of a part of the joining tool or of this tool part in an exciter frequency pulsating introduced into the joint connection to be produced, wherein the other opposite joining tool part is elastically yielding and the Natural frequency of the opposite joining tool part alone or together with the parts to be joined is lower than the excitation frequency.
  • the device according to the invention has a striking mechanism which is intended for Producing a mechanical joint for a short time several successive impacts or a pulsating force on one of the Can apply joining tool parts, wherein the other opposite joining tool part is elastically yielding and the exciter frequency with which the Joining tool is energized so that it is adjustable that it is higher than the natural frequency of the opposite Joining tool part alone or together with the joining parts.
  • the hold-down forces have a static effect on the parts to be joined.
  • This static load remains unchanged, even if the joining tool parts not a working stroke, but several consecutive shocks, and this static load must be from Frame and the opposite of the holder joining tool part be caught. If the opposite joining tool part is stored soft
  • the static load of the holddown can be a large deflection of the vibration-insulated opposite joining tool part cause.
  • the movement of the Hold-down via coupling agent such as a mechanical Drive connection via a drive lug or a hydraulic valve-controlled sequential control, with the movement of the joining tool part to synchronize. The same applies to scrapers.
  • the hold-down force is not dynamically as described above or applied controlled by magnets, can be caused by the static forces deflection by an active Position control on one or both joining tool parts at least partially be compensated by these by adjusting means in one of the static deflection can be moved in the opposite direction.
  • the several successive impacts of the impact mechanism allow it an elastic mounting of the opposite joining tool part and a large mass and / or soft springs of the opposite joining tool part to work with lower force peaks in the substructure (frame), as the for The production of the mechanical joint connection required joining force no longer is introduced in a single stroke, but the natural frequency of opposite joining tool part exceeding exciter frequency of the one Joining tool part a vibration isolation of the elastically mounted opposite joining tool part allowed. It is important to one Oscillating system to form the optimum on the joint connection to be produced is tuned.
  • the Substructure is thus vibration technology of the introduced joining force decoupled, and on the substructure only fractions of the introduced joining force. Allow short, high frequency bursts it, the largest part of the joining force for the plastic deformation at the Joining joint involved parts of the joining parts and any auxiliary joining parts such Use rivets.
  • the rule is that the higher the degree of isolation, the greater the degree of isolation Excitation frequency in relation to the natural frequency of the parts to be joined and the opposite joining tool part is.
  • the present invention can not be use only if two joining tool parts directly to the production of Join joint are involved, but also when the parts to be joined over a have sufficient intrinsic stability to use only one directly on the Joining involved tool part, namely the excited in a frequency Joining tool to remain in an acceptable form.
  • the Concept of the "opposite joining tool" as used in this context Description is also understood by "pad part”. In such Cases it is sufficient, instead of the opposite joining tool part, the joining parts store so that their natural frequency by elastic compliance as possible low.
  • vibration isolation can be effected for example via the pressure medium of the impact mechanism. So acts in a pneumatic mechanism, the gas like a spring, the one Vibration isolation causes.
  • the vibration isolation can also over Components with a preferably larger mass such as support plates and with an elastic storage, which then, for example, the beating unit and the Feed unit vibration isolation.
  • the joining force is introduced pulsating.
  • pulsating is to be understood here as meaning that over a time interval the force is undulating Increasing and decreasing is introduced into the joint connection. It will be then maintained a static base load. In this case, the frequency or amplitude the power wave are modulated.
  • the inventive method can also be implemented in a device that has no common frame for both joining tool parts and in the Tappet and the die are each guided in a separate holder.
  • the two-stage assembly process forces one Forming the connecting element and the sheet metal part.
  • This will be the Sheet metal part positioned above a die and through the punching and riveting section preformed the connecting element, on and cut through.
  • the punching and Rivet section presses against a cutting and rolling punch of the die and is, itself while widening, rolled.
  • continuation of the assembly process includes the Rolled end of the punching and riveting the hole edge of the sheet metal part completely and creates a closed, circumferential, U-shaped entanglement with this. Then the rivet head is leveled.
  • the device according to the invention and the method for Automation be used.
  • a control or Control electronics with associated sensors or actuators can, for example, the Natural frequency of the opposite joining tool and the joining parts during the joining process by modulation of the excitation frequency or by a test pulse, which precedes the actual joining process can be determined.
  • the frequency query can be done for each individual joining process, but also on a random basis.
  • the Frequency query can be used to check the quality of the parts to be joined, since Infer frequency deviations for errors in the parts to be joined.
  • the Control or electronic control the respective joining process with a monitor the integrated test program, evaluate the characteristic values and save them and so an element of a production-integrated quality inspection system of manufacture his.
  • control electronics When the control electronics detects the natural frequency, It can access stored values that allow it to be changed the excitation frequency and other relevant parameters for the joining process this positively influence in the desired manner. It is also conceivable to have a robot the joining parts should be fastened together with several mechanical joining points, to run a program with different parameters in the program The individual joining points are stored and implemented automatically. So For example, different sheet thicknesses, frequencies, shock paths, Speeds, strength, number and elasticity values of the bearings for each individual joining point individually controlled or regulated. For a simple Control / regulation can also evaluate only the beat or delivery parameters become.
  • the joining force at the end of Joining process to increase to a pulse-like shock, for example, a smoothed rivet or flat surface to smooth the joint surface.
  • a pulse-like shock for example, a smoothed rivet or flat surface to smooth the joint surface.
  • the one impulsive shock occurring forces need tools such as C-frame tongs not to be designed for static load, because the Force peaks are deflected. The tools can be this way easily stay.
  • the proposed device and the method allows a high Manufacturing flexibility, because in an electronic control consecutively completely different joining parts can be fastened together, if only that Work program in the command memory of the electronic control or Control device is loaded.
  • alternative can also be one of the joining tool parts or a hold-down of a material with ferromagnetic properties, in which case an electromagnet on this acts.
  • joining parts or hold-downs is not only possible to use these on joining joints in ferromagnetic joining parts, but it is also possible to suppress components made of nonmagnetic materials, because the magnetic field lines penetrate the material and so for example Put down the hold down and matrix.
  • the intermediate non-magnetic Joining parts are pressed together in this way.
  • the Hold-down magnet can be used when joining or punching parts to be joined, from which has at least the lowest ferromagnetic properties, the Counter tool even with thin and unstable components accounts.
  • Figure 1 is in a force / displacement diagram in long dashed line 2 of the course a joining force on the joining path shown.
  • the illustrated course of the joining force 2 corresponds to the known state of Technology.
  • the course of the joining force over the joining path is established successive, preferably high-frequency shocks completely different.
  • the present invention shows the course of the impact energy used at the Mating point is measurable in a variety of individual force peaks, which are exemplary in full lines 4 are shown in Figure 1 and their number over a given path depends on the selected frequency.
  • the joining tool parts die 52 and plunger 54 act on the joining parts 50 for producing a joint connection.
  • the die 52 is elastically yielding and has a larger mass than the plunger 54.
  • the plunger 54 operates by a corresponding bore or opening in the hold-down 56 therethrough, wherein the plunger 54 performs a kind of hammering movement.
  • the hammering movement is generated by a striking mechanism 58, housed in the different drives could be.
  • the impact mechanism 58 moves the plunger 54 with a large Beat frequency and comparatively small impact energies.
  • the impact mechanism 58 may be pneumatic, such as in a Preßluftm adoptedel or a Pneumatic hammer, electric, such as with a crankcase drive, Unbalance motors or electromagnetic, electropneumatic as in one Rotary hammer or servohydraulic or in other ways known per se are driven.
  • the impact mechanism 58 may, given the possible small whipping energies can be carried out very easily and will be during the Joining process with only slight contact pressure tracked by the feed unit 60, at the same time on hold-down springs 62, the required hold-down force transfer this.
  • the delivery unit 60 is preferred, but not necessarily at the same time also used for the pressing of the hold-down.
  • a vibration isolation can be realized.
  • the same too Possible elastic storage is not shown in detail in FIG. Technically, the Delivery unit 60 with each of the above or other known Drive forms can be realized.
  • the die 52 has a much larger mass on as the plunger 54 and is resiliently supported by the springs 66. This suspension can be carried out separately or by using a C-frame flexible interpretation of the same can be achieved. It is also a damping 68 intended. Also, the suspension can be done with a gas.
  • a device or process variant could be synchronized with one opposing operation with moving in common mold 52 and plunger 54 for Mass balance can be realized. Also an active balancing of the movements of the Joining tool parts or the joining parts would be technically conceivable.
  • the necessities Contact forces of the impact mechanism 58, which is called quasistatic forces can denote reach only low values. They are only marginally larger than the forces required for the hold-down 56.
  • an electronic control or regulating device 70 is shown in Figure 2, the is connected via electrical lines 72 to the actuators 76 a, b and sensors 74.
  • the actuators 76 a, b and sensors 74 are only symbolic with their electronic Interface shown.
  • the electronic control device 70 is with at least one microprocessor equipped with the appropriate software Device controls or regulates.
  • the control or regulating device 70 determine, for example via a sensor 74, the natural frequency of the joining parts 50, by sending an actuating command to the delivery unit 60 and / or the Impact mechanism 58 as examples of actuators 76 a triggers a test pulse and the natural frequency of the joining parts 50 measures.
  • the control device 70 can have its own storage capacities to store processes stored there, To retrieve maps or similar or store data, or the tax or Control device 70 exchanges data via a communication interface other microprocessors.
  • the die 52 In order to eliminate the quasi-static forces of the hold-56, is called Variation when joining steel materials proposed, the die 52 as strong Form electromagnet, which is able to be joined sheets free of reaction forces to the die 52 to pull.
  • FIG. 3 shows a C-frame pliers 100 whose C-frame 102 is end-side each having a storage unit 104, 106.
  • a Delivery unit 60 mounted, which is actuated with low contact pressures.
  • the Infeed unit 60 moves a carrier plate 108, on which a striking mechanism 58 is fixed, which has a plunger 54 with a small plunger mass and a high Beat rate operates.
  • the outside around the impact mechanism 58 is guided around the Hold-down spring 62, the contact pressure of the feed unit 60 on the hold-down 56 transmits.
  • the female mold 52 has a large mass a bearing spring 66 mounted, which also consists of an elastomeric material, a Gas spring or other spring-damper system may exist.
  • the C-frame tongs 100 can with the described devices plates 50 by permanently connect mechanical joining. Because of the now very low contact pressures, it is possible to use the C-frame pliers as a hand tool or To execute tools for fast-working robots, but also the upper and lower perform lower arms longer than shown in Figure 3, without thereby inadmissible and no longer or only at disproportionate expense controllable bending moments and offset occur.
  • a device is shown in each case, in which the plunger 54 and the Die 52 are not held by a common frame 102. Also with the shown device can be reliably created a joint connection.
  • a first guide housing 150 the plunger 54, in a second Guide housing 152, the die 52 out.
  • Figure 4 are laterally at both Guide housings 150, 152 magnetic coils 154 for generating a magnetic field appropriate. While the guide housing 150 is active from a positioning unit in FIG the position is controlled in which the plunger 54 is to establish a joint connection, the guide housing 152 is entrained via the connecting magnetic force.
  • the Positioning unit is shown in Figure 4 by two laterally mounted traversing units 156th indicated, which consists of a lifting cylinder 158 for height guidance and a chassis 160 for rolling movement of the guide housing 150 exist.
  • a lifting cylinder 158 for height guidance and a chassis 160 for rolling movement of the guide housing 150 exist.
  • To exercise of the guide housing 150 is by extending the chassis 160 the Guide housing 150 lifted from the surface of the joining parts 50 and can guided by a controller not shown on the joining parts 50 move.
  • the landing gear is retracted, and the Guide housing sits firmly back on the surface of the upper joining part 50.
  • FIG. 5 shows a simplified embodiment of the device shown in FIG.
  • Solenoids 154 or air cushion here is the positioning of the joining tool parts 52, 54 known per se about Portalverfahrikien or industrial robots with large Range done.
  • here in terms of the control of the Portal Verfie units or industrial robots are driven higher expenditure because the die 52 and the plunger 54 for optimum joint connection possible must be positioned exactly on top of each other.
  • alignment aid can in one such case laser measurement, ultrasound or the use of magnets in Connection with inductive pickups are used.
  • FIG. 6 shows a delivery unit 60 which is arranged in a C-frame 102 is.
  • the feed unit 60 acts on a support plate 108, below the one Impact mechanism 58 is arranged. That of the impact mechanism 58 generated shocks are transmitted to the plunger 54.
  • the hold-down springs 62 hold the hold-down 56, which acts on the sheets 50.
  • the sheets 50 are on a die 52 which is movable and has a larger mass.
  • Both the Infeed unit 60 as well as the die 52 are in C-frame 102 by insulating springs 66a held in this case, which are variable in their spring rate.
  • the insulating springs 66a are associated with insulating damper 68a, which are also designed to be variable.
  • the Variation can be, for example, in pneumatic or hydrostatic springs and Damper effect by a different pressure control of the gas cushion.
  • the Variation of suspension and damping allows both an individual adaptation of the Device on different joining processes and joining parts as well as a variation the spring and damping behavior of the device during a joining process.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Assembly (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Insertion Pins And Rivets (AREA)

Claims (16)

  1. procédé d'assemblage mécanique de tôles, de profilés ou d'assemblages à tôles multiples, superposés, selon lequel à l'aide de moyens de production de force, on déplace des éléments d'un outil d'assemblage vers les pièces à assembler et, grâce à l'action e force de l'outil d'assemblage, on établit une liaison d'assemblage entre les pièces à assembler, caractérisé en ce que la force d'assemblage nécessaire est appliquée de façon pulsatoire avec une fréquence d'excitation, à la liaison d'assemblage devant être établie, au moyen de plusieurs chocs successifs, de brève durée, d'une partie de l'outil d'assemblage (54) ou par cet élément d'outil, l'autre élément d'outil d'assemblage opposé (52) étant supporté de manière à s'écarter élastiquement et la fréquence propre de l'élément d'outil d'assemblage opposé (52), seul ou conjointement avec les pièces à assembler (50), étant inférieure à la fréquence d'excitation.
  2. Procédé selon la revendication 1, caractérisé en ce que le procédé est contrôlé par un dispositif électronique de commande ou de régulation (70) par l'intermédiaire de capteurs appropriés (74).
  3. Procédé selon la revendication 2, caractérisé en ce que le dispositif de commande ou de régulation (70) commande ou règle l'opération d'assemblage par délivrance d'instructions de réglage à un système d'actionnement (76a, b).
  4. Dispositif pour réaliser l'assemblage mécanique de tôles, de profilés ou d'assemblages à tôles multiples, superposés, constitué par un cadre, un outil d'assemblage disposé dans ce cadre et des moyens de production de force pour déplacer au moins l'un des éléments de l'outil d'assemblage, caractérisé en ce que le dispositif comporte un mécanisme de frappe (58) qui, pour établir une liaison d'assemblage mécanique, peut appliquer en une brève durée, plusieurs chocs successifs ou une force pulsatoire à l'un des éléments (54) de l'outil d'assemblage, l'autre élément opposé (52) de l'outil d'assemblage étant monté de manière à s'écarter élastiquement et la fréquence d'excitation avec laquelle l'élément (54) de l'outil d'assemblage est activé est réglable de manière qu'elle soit supérieure à la fréquence propre de l'élément opposé (52) de l'outil d'assemblage, seul ou conjointement avec les pièces à assembler (50).
  5. Dispositif selon la revendication 4, caractérisé en ce que le mécanisme de frappe (58) est également isolé, du point de vue vibrations, par rapport au cadre (102).
  6. Dispositif selon la revendication 5, caractérisé en ce que les éléments supportés élastiquement (52, 54) de l'outil d'assemblage sont amortis vis-à-vis de vibrations.
  7. Dispositif selon l'une des revendications précédentes 4 à 6, caractérisé en ce que les deux éléments (52, 54) de l'outil d'assemblage appliquent l'une à l'autre à la même cadence une force de choc ou une force pulsatoire.
  8. Dispositif selon l'une des revendications précédentes 4 à 7, caractérisé en ce que les éléments (52, 54) de l'outil d'assemblage sont montés dans des boítiers de guidage respectifs (150, 152), qui sont équipés de bobines magnétiques (154), au moyen desquels les boítiers de guidage opposés (150, 152) peuvent être tirés l'un contre l'autre et retiennent entre eux les pièces à assembler (50).
  9. Dispositif selon l'une des revendications 4 à 8, caractérisé en ce que l'élasticité et l'amortissement des systèmes de support élastiques (66, 68, 66a) sont modifiables.
  10. Dispositif selon l'une des revendications 4 à 9, caractérisé en ce que le déplacement d'avance d'un élément (54) de l'outil d'assemblage est synchronisé, à l'aide d'un moyen de couplage, sur le déplacement d'un serre-flan (56) et/ou d'un dispositif de retrait.
  11. Dispositif selon l'une des revendications 4 à 10, caractérisé en ce que l'opération d'assemblage est contrôlée par un dispositif électronique de commande ou de régulation (70), par le fait que des capteurs (74) déterminent des valeurs importantes pour le processus d'assemblage.
  12. Dispositif selon la revendication 11, caractérisé en ce que le dispositif électronique de commande ou de régulation (70) détermine, par l'intermédiaire d'un dispositif d'actionnement (7a,b) et d'un système de détection (74) la fréquence propre de l'élément opposé (59) de l'outil d'assemblage, et modifie la fréquence, avec laquelle l'autre élément (54) de l'outil d'assemblage est excité, en fonction de la fréquence propre déterminés, au moyen de la commande d'un système d'actionnement (76a, b).
  13. Dispositif selon l'uns des revendications 11 ou 12, caractérisé en ce que le dispositif électronique de commande ou de régulation (70) modifie, au moyen d'un système d'actionnement (76b), la caractéristique d'amortissement du système de support élastique (66, 68).
  14. Dispositif selon l'une des revendications 11 à 13, caractérisé en ce que le dispositif électronique de commande et de régulation (70) obtient la fréquence d'excitation ou la caractéristique d'amortissement à partir de données, que ce dispositif mémorise directement ou auxquelles il a accès.
  15. Dispositif selon l'une des revendications 4 à 14, caractérisé en ce qu'aussi bien l'intensité des chocs que le nombre des chocs, la vitesse des chocs, le trajet d'application des chocs ou la durée des chocs du mécanisme de frappe (58) sont réglables d'une manière variable.
  16. Dispositif selon l'une des revendications 4 à 15, caractérisé en ce que des éléments auxiliaires d'assemblage tels que des écrous, des boulons ou des rivets réalisant un poinçonnage peuvent être utilisés dans le dispositif, avec ou sans prépoinçonnage.
EP98112439A 1997-07-09 1998-07-06 Appareil et procédé de joindre mécaniquement des tôles, des profilés ou des connections de tôles multiples Expired - Lifetime EP0890397B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19729368 1997-07-09
DE19729368A DE19729368A1 (de) 1997-07-09 1997-07-09 Vorrichtung und Verfahren zum mechanischen Fügen von Blechen, Profilen und/oder Mehrblechverbindungen
US09/229,731 US6199271B1 (en) 1997-07-09 1999-01-13 Method and apparatus for joining metal sheets and the like

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EP0890397A1 EP0890397A1 (fr) 1999-01-13
EP0890397B1 true EP0890397B1 (fr) 2003-03-26

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EP3117925A1 (fr) * 2015-07-17 2017-01-18 Robert Bosch Gmbh Dispositif de rivetage et dispositif de fabrication
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DE102015213436A1 (de) * 2015-07-17 2017-01-19 Robert Bosch Gmbh Verfahren zum Verbinden wenigstens zweier Bauteile mittels einer Stanznietvorrichtung und Fertigungseinrichtung
EP3120951A1 (fr) * 2015-07-24 2017-01-25 Robert Bosch Gmbh Dispositif de rivetage et dispositif de fabrication
DE102015213761A1 (de) * 2015-07-22 2017-01-26 Robert Bosch Gmbh Übertragungselement für eine Stanznietvorrichtung, Stanznietvorrichtung, Fertigungseinrichtung und Verfahren zum Ermitteln eines Schwingungsverhaltens
CN107344223A (zh) * 2016-05-04 2017-11-14 罗伯特·博世有限公司 借助冲铆装置连接至少两个构件的方法、冲铆装置和制造设备
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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
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
US9926963B2 (en) 2013-11-06 2018-03-27 Profil Verbindungstechnik Gmbh & Co. Kg Method for the connection of sheet metal parts and component assembly as well as setting head and die button
US10208782B2 (en) 2013-11-06 2019-02-19 Profil Verbindungstechnik Gmbh & Co. Kg Method for the connection of sheet metal parts and component assembly as well as setting head and die button
EP3117925A1 (fr) * 2015-07-17 2017-01-18 Robert Bosch Gmbh Dispositif de rivetage et dispositif de fabrication
DE102015213433A1 (de) * 2015-07-17 2017-01-19 Robert Bosch Gmbh Verfahren zum Verbinden wenigstens zweier Bauteile mittels einer Stanznietvorrichtung und Fertigungseinrichtung
DE102015213436A1 (de) * 2015-07-17 2017-01-19 Robert Bosch Gmbh Verfahren zum Verbinden wenigstens zweier Bauteile mittels einer Stanznietvorrichtung und Fertigungseinrichtung
DE102015213438A1 (de) * 2015-07-17 2017-01-19 Robert Bosch Gmbh Stanznietvorrichtung und Fertigungsvorrichtung
DE102015213761A1 (de) * 2015-07-22 2017-01-26 Robert Bosch Gmbh Übertragungselement für eine Stanznietvorrichtung, Stanznietvorrichtung, Fertigungseinrichtung und Verfahren zum Ermitteln eines Schwingungsverhaltens
EP3120951A1 (fr) * 2015-07-24 2017-01-25 Robert Bosch Gmbh Dispositif de rivetage et dispositif de fabrication
DE102015214014A1 (de) * 2015-07-24 2017-01-26 Robert Bosch Gmbh Stanznietvorrichtung und Fertigungsvorrichtung
CN107344223A (zh) * 2016-05-04 2017-11-14 罗伯特·博世有限公司 借助冲铆装置连接至少两个构件的方法、冲铆装置和制造设备
DE102017205264A1 (de) * 2017-03-29 2018-10-04 Robert Bosch Gmbh Stanznietvorrichtung und Fertigungseinrichtung

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DE19729368A1 (de) 1999-01-14
US6199271B1 (en) 2001-03-13
US20010002506A1 (en) 2001-06-07
EP0890397A1 (fr) 1999-01-13

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