EP1935527B1 - Procédé et système destinés à la fabrication de pièces de déformage géométriquement variables à partir de matériau en bande - Google Patents

Procédé et système destinés à la fabrication de pièces de déformage géométriquement variables à partir de matériau en bande Download PDF

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Publication number
EP1935527B1
EP1935527B1 EP06077290A EP06077290A EP1935527B1 EP 1935527 B1 EP1935527 B1 EP 1935527B1 EP 06077290 A EP06077290 A EP 06077290A EP 06077290 A EP06077290 A EP 06077290A EP 1935527 B1 EP1935527 B1 EP 1935527B1
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EP
European Patent Office
Prior art keywords
tool
cutting
blank
blanks
pile
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Application number
EP06077290A
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German (de)
English (en)
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EP1935527A1 (fr
Inventor
Andreas Dipl.-Ing. Walther
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Feintool Intellectual Property AG
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Feintool Intellectual Property AG
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Priority to AT06077290T priority Critical patent/ATE442216T1/de
Priority to DE502006004819T priority patent/DE502006004819D1/de
Priority to EP06077290A priority patent/EP1935527B1/fr
Priority to PCT/IB2007/004451 priority patent/WO2008078199A2/fr
Publication of EP1935527A1 publication Critical patent/EP1935527A1/fr
Application granted granted Critical
Publication of EP1935527B1 publication Critical patent/EP1935527B1/fr
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    • 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
    • B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
    • B21D45/003—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass in punching machines or punching tools

Definitions

  • the invention relates to a method for producing formed parts of sheet metal geometrically arbitrary shape of strip or strip material in a press with two separately driven plungers, in the first boards from the strip or strip material held by a press table, driven by the first plunger cutting tool are cut out in the direction of the cutting plate (die) upwardly moving cutting punch and are passed after opening the cutting tool by a slide from the tool room to a gripper device, which spans the boards in a transfer position and from there by a gripper transfer to a driven by the second plunger of the press Transfer tool for forming in their final geometry synchronously.
  • the invention further relates to a system for producing formed parts from sheet metal geometrically arbitrary shape of strip or strip material, comprising a two separately driven ram press comprising at least one driven by the first ram of the press cutting tool for cutting out of blanks, the lower part of the tool substantially a guide plate and a punch contains, and the tool upper part consists essentially of cutting plate, tuning plate and slide, a gripper device for transporting the boards in a transfer station for a gripping transfer, which supplies the boards to a driven by the second ram of the press transfer tool for further processing.
  • a device for cutting and positioning of boards in presses which is equipped with a cutting device with up-cutting cutting punch and at the same time driven means for receiving and transferring the boards to a transport system of the press.
  • This solution includes presses with several successive stages of production.
  • the cutting device consists essentially of a stationary die with a recess in the form and dimensions of the cut-to-size cutout and an up and down moving cutting punch that cuts on the upstroke.
  • the cutting device is arranged in a position rotated by an angle relative to the production direction.
  • the means for Card receiving and transfer to a transport system comprise a station for rotation of the boards from the given by the arrangement of the cutting angle angular position in the production direction.
  • a clock-like, but in opposite directions with the cutting punch up and down moving sinker is rotatably formed.
  • the cut-out boards lie obliquely to the longitudinal axis of the strip or strip material, so that the entire width of the material can be utilized.
  • the present invention seeks to improve a method and a system for producing sheet metal parts of any geometric shape, in particular circuit boards, of strip or strip material such that material consumption-optimized parts of high precision with a relatively large Ausbring intricate with simply constructed Tool can be provided inexpensively.
  • the inventive solution is characterized in that the cut-out boards are already stacked and unstacked in the cutting plate, so that a compact cutting tool is created, which ensures a uniform platinum transport to the subsequent forming tools in the same press and expensive separate removal or destacking can be omitted ,
  • the cutting plate breakthrough is designed as a stacking space and provided with means, such as local, vertically cut into the wall of the cutting plate breakthrough webs to hold the stacking block even with the tool open.
  • the insert with tuning plate is sprung to compensate for corresponding thickness tolerances of the boards to be stacked and to ensure that the upper board of the stacking block comes to lie completely in the slide after loosening and the slider is free.
  • the stacking space is associated with a Abweisschräge, which is arranged either in the slide or on the tuning plate.
  • This Abweisschräge succeeds in a simple manner to produce a horizontal thrust, with which it is possible to easily solve the top board from the stacking block.
  • the slider picks up the loosened board and moves it out of the tool room. This is done in time with the addition of a new board to the lower board of the stacking block.
  • the free selectability of the position of the boards in relation to the longitudinal axis of the belt leads to a broadening or expansion of the applications of fineblanking and forming operations while optimizing the use of materials, even with parts of high precision and complexity.
  • the boards can take any position with respect to the longitudinal axis of the strip or strip material, for example, the two boards can be rotated 180 ° to each other or the boards are obliquely, longitudinally or transversely to the longitudinal axis of the strip or strip material equal or equivalent nested aligned.
  • Cutting tool and transfer tool within the system according to the invention are coupled together by a transfer station, wherein a programmable gripper device feeds the board to the transfer station, the latter positioned in the desired position and a gripper transfer feeds the transferred appropriately positioned board to the transfer tool.
  • a transfer station wherein a programmable gripper device feeds the board to the transfer station, the latter positioned in the desired position and a gripper transfer feeds the transferred appropriately positioned board to the transfer tool.
  • the inventive method is characterized by short cycle times and high Ausbringt.
  • FIG. 1 and 2 a schematic representation of the system according to the invention, with which the inventive method is carried out
  • Fig. 3a a sectional view of the cutting tool in the clamped state of horrin- and Tool lower part with free stacking space for boards arranged in the cutting plate opening,
  • Fig. 3b a sectional view of the arranged in the wall of the Schneidplatturchbruchs holding means for holding the boards in the stacking space
  • Fig. 3c a sectional view of the cutting tool in the clamped state of horrin- and tool base with a arranged in the stacking stack block of n boards,
  • Fig. 3d a representation of the slightly wedged boards in a stacking block
  • Fig. 3e an illustration of an upper board with force diagram starting against a deflection slope
  • Fig. 3f a sectional view of the cutting tool in the clamped state of horrin- and tool base, in which the upper board of the stack block reaches its topmost position
  • Fig. 3g a sectional view of the cutting tool in the open state, in which the upper board is detached from the stacking block and detected by the slide opening,
  • Fig. 3h a sectional view of the cutting tool in the open state, in which the slide is pushed out with board from the tool room,
  • Fig. 4 a variant of the arrangement of the Abweisschräge on the Abstimmplatte in sectional view
  • Fig. 5a and 5b an enlarged view of the stacking block of n-boards in the stacking space of the cutting plate breakdown with open and closed tool for measuring the maximum and minimum height of the stacking block as a function of the thickness tolerance of the sheet,
  • Fig. 6 a plan view of the cutting tool with representation of the slider in the initial position and in the extended position and the tape running direction and
  • Fig. 7 a representation of the kinematic coupling of cutting tool and transfer tool
  • Fig. 8 a schematic representation of the gripper module.
  • the method according to the invention is intended to produce formed parts 1 from sheet metal, preferably brake lining carriers.
  • the method according to the invention is not limited to such parts and the parts may also have other geometric shapes.
  • sheet metal blanks 9, 9.1 are first cut out of a strip or strip material 6 , which receive their final geometry in further forming and cutting operations.
  • the Fig. 1 and 2 show the system according to the invention, with which the method is carried out.
  • the system essentially consists of a press 2 with two separately driven rams 3 and 4, a coil system 5 for the tape material 6, a straightening unit 7 for directing the strip material 6, a tape feeding 7.1, a Cutting tool 8 for cutting boards 9 from the strip material 6, a waste separator 18, a gripper module 12 for receiving and passing the board 9 to a transfer station 11 a gripper transfer 10, which spans the boards 9 in a predetermined position by the transfer tool, and a modular constructed transfer tool 13 for performing blanking and forming operations on the supplied board 9.
  • the plunger 3 acting vertically upwards on the, between the plunger 3 and the press table 14 fixed cutting tool 8 and the slide 4 vertically downward onto the fixed to the press bed 14 transfer tool 13.
  • the straightening unit 7 also a strip feeder can be provided.
  • the course of the method according to the invention is in the Fig. 3a to 3h shown.
  • the cutting tool 8 is - as in Fig. 3a shown from a tool upper part 15 and a lower tool part 16 together, wherein the cutting tool 8 is opened by a vertical movement downwards and a vertical movement movement is closed upwards.
  • the tool upper part 15 consists essentially of a cutting plate 17, a regrinding plate 18, a tuning plate 19, a slider 20 and an upper pressure plate 23 and the lower tool part 16 of a guide plate 21, a cutting punch 22 and a lower pressure plate 24.
  • Cutting plate 17, regrinding plate 19th and tuning plate 19 are sprung.
  • the cutting plate 17 and the tuning plate 19, which to compensate for the insert height Regrinding serves, are thereby movable upwards. Between the tuning plate 19 and the upper pressure plate 23 , the slider 20 is guided. During the cutting process, the slider 20 also serves as a support of cutting plate 17 and tuning plate 19.
  • the slider 20 has a receiving opening 27 for the positive reception of the cut-out boards 9 and 9.1. In the closed position of the cutting tool 8 , the strip or strip material 6 between the lower tool part 16 and upper die 15 is clamped.
  • the cutting tool 8 cuts from the supplied strip or strip material 6 two boards 9 and 9.1 per stroke. It is understood that the cutting tool is also interpretable so that more than two boards per stroke can be cut out.
  • the two boards 9 and 9.1 are cut with the bottom punch 22 up in the cutting plate 17 and pushed into the cutting plate opening 25 of the cutting plate 17 .
  • the cutting plate 17 is designed so that the cutting plate opening 25 includes a stacking space 26 forms and for a number n of cut boards 9 and 9.1 can accommodate the latter.
  • webs 28 are provided which protrude vertically at local locations of the wall of the Schneidplatturchbruchs 25 and form a constriction of the cutting gap 29 , so that the boards of a local clamping effect in the cutting plate opening 25 are subject to and held by them.
  • the webs 28 are arranged so that they in a part of the outer contour of the board 9 and 9.1 to lie that either have to be recut or do not have quality requirements (see Fig. 3b ).
  • a board 9 or 9.1 is cut out (see Fig. 3f ) and pushed with its feed side ES to the ridge side GS of the previously cut-out board, so that a stacking block 30 of a number n miteinender slightly wedged boards 9 and 9.1 is formed.
  • Fig. 3d shows such a stacking block 30 of the boards 9.
  • the ridge side GS of the boards 9 is the cutting punch 22 facing, ie below.
  • the upper part of the board, ie the feed side ES, is at the top.
  • the slide 20 with which the cut-out boards 9 are pushed out of the tool room W with the tool open is provided with a Abweisschräge 31 , which is formed in the inner edge of the receiving opening 27 of the slider 20 so that its upper edge OK against its lower Edge UK includes an opening angle ⁇ of 10 to 15 ° (see Fig. 3h ).
  • the Abweisschräge 31 may also be arranged on the tuning plate 19 .
  • the opening angle ⁇ of the Abweisschräge 28 corresponds to the angle of Abweisschräge in the slide 20th
  • the lying in the sliding direction edge of the tuning plate 19 is provided with a slope 32 so that the Ridge side of the board 9 or 9.1 is not pending or hooked.
  • the horizontal thrust PS counter to the stroke movement and a vertical force component PV.
  • the horizontal thrust PS solves the slight wedging of the wedged together boards and allows the dissolved board 9 and 9.1 to move into the receiving opening 27 of the slider 20 (see Fig. 3e ).
  • Fig. 3g shows the step after opening the cutting tool 8, in which the tool base 16 moves down and the guide plate 21 has stripped the strip or strip material 6 , the cutting plate 17 springs and the upper board 9 and 9.1 is free and through the slide 20 can be ejected from the tool room W.
  • Fig. 3h shows the slider 20 in its fully moved out of the tool room W position.
  • the course of the method according to the invention results in principle from the following description.
  • the cutting punch 22 moves driven by the plunger 3 of the press from bottom dead center UT toward the top dead center OT.
  • the slider 20 is in its rear end position as the Fig. 6 shows.
  • the cutting punch 22 and the guide plate 21 lift the strip or strip material 6 and the cutting plate 17 with Tuning plate 19 is pushed up, that is cutting and tuning plate springs.
  • the slider 20 is clamped between regrinding plate 18 and upper pressure plate 23 . In this state, cutting begins (see Fig. 3c and 3f ). Once the punch 22 reaches the top dead center TDC , this moves with the plunger 3 and the lower pressure plate 24 downwards, ie in the direction of press table or lower pressure plate 24.
  • the guide plate 21 of the cutting punch 22 springs out and touches the tape or Strip material 6 off ( Fig. 3g ).
  • the tool is open and the cutting plate 17, the tuning plate 19 and the stacking block 30 also spring out, ie move down.
  • the slider 20 is free for pushing out (see Fig. 3h ).
  • the height of the cutting plate 17 and tuning plate 19 to be selected depends on the material thickness of the board 9 or 9.1 to be stacked . Thus, the thickness tolerances can be compensated and the slider 20 is free, the cutting plate 17 are sprung with tuning plate 19 .
  • Fig. 6 the cutting tool 8 is shown with two cutting dies 22 .
  • the slider 20 is in the starting position and the running direction L of the strip or strip material 6 is perpendicular to the slide axis SA of the slider 20.
  • the two cutting punch 22 are offset in the direction L of the strip or strip material 6 to each other.
  • Each cutting punch 22 is associated with a slide 20 for pushing out the boards 9 and 9.1 from the tool room W , with quite a single slider for both boards is conceivable.
  • it is a linear slider, which is moved by a drive, such as stepping gear, servo motor, speed or linear motor and brings the two boards in a takeover position 33 .
  • the slider 20 may also be designed as a rotary valve, without departing from the invention.
  • the rotary valve has the advantage that no forward and backward movement is necessary and thus the time in which the tool is open, ie the slide 20 is free, can be shorter.
  • the gripper module 12 is expediently designed as an XYZC axis module (see Fig. 8 ), whose positions are freely programmable, wherein the axis movements of the module to move the press ram 3, including the gripper transfer run synchronized.
  • the gripper module 12 engages the respective board, holds the latter non-positively and positively and positions the board in the desired position on the transfer station 11, from which the board is fed to the transfer tool for further forming.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Laminated Bodies (AREA)
  • Insulated Metal Substrates For Printed Circuits (AREA)
  • Adornments (AREA)

Claims (15)

  1. Procédé pour fabriquer des pièces de formage en tôle de forme géométrique quelconque à partir de matériau en bande ou en ruban dans une presse avec deux coulisseaux entraînés séparément, dans lequel pour commencer des platines sont découpées dans le matériau en bande ou en ruban par un outil de coupe entraîné par le premier coulisseau avec des poinçons de coupe se déplaçant vers le haut en direction de la plaque de coupe (matrice) et sont transmises après l'ouverture de l'outil de coupe par un poussoir de l'espace outil sur un dispositif préhenseur, qui transporte les platines dans une station de transfert, et qui sont amenées de façon synchrone de là par un transfert préhenseur à un outil de transfert entraîné par le second coulisseau de la presse pour le formage dans leur géométrie finale,
    caractérisé en ce que les platines (9 ; 9.1) sont empilées dans le passage (25) de la plaque de coupe les unes au-dessus des autres pour former un bloc empilable (30), qui est légèrement calé et constitué de n-platines, auquel une platine (n+1) découpée est jointe par cycle au côté bavure de la platine inférieure du bloc empilable, avec un léger calage et duquel une platine (n-1) supérieure est détachée du bloc empilable et déplacée hors du passage de la plaque de coupe, les étapes de travail suivantes étant exécutées pour le détachement et l'enlèvement de la platine (n-1) :
    a) arrivée d'une arête de la platine (n-1) par le mouvement de levage du bloc empilable dans l'outil coincé sur un chanfrein déflecteur (31) pour générer une force de poussée (PS) horizontale agissant dans le plan (E) de la platine (n-1) et par une force verticale (PV) fixant le bloc empilable dans le sens contraire au mouvement de levage ;
    b) détachement de la platine (n-1) de son calage du bloc empilable par la force de poussée (PS) selon l'étape a), le déplacement de la platine (n-1) hors du bloc empilable dans le poussoir et calage de la platine (n+1) séparée par le poinçon de coupe sur l'extrémité inférieure du bloc empilable ;
    c) maintien du bloc empilable dans le passage de la plaque de coupe et sortie de la platine (n-1) détachée de l'outil ouvert.
  2. Procédé selon la revendication 1, caractérisé en ce que la force de poussée (PS) est générée par un chanfrein déflecteur de 10 à 15°.
  3. Procédé selon les revendications 1 et 2, caractérisé en ce que la force de poussée (PS) pour le détachement de la platine (n-1) du bloc empilable est générée par le poussoir (20) doté du chanfrein déflecteur (31).
  4. Procédé selon les revendications 1 et 2, caractérisé en ce que la force de poussée (PS) pour le détachement de la platine (n-1) du bloc empilable est générée par une plaque d'adaptation dotée du chanfrein déflecteur (31) et appartenant à l'outil de coupe.
  5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que des poussoirs linéaires ou des poussoirs rotatifs sont utilisés comme poussoir.
  6. Procédé selon la revendication 1, caractérisé en ce que le bloc empilable est maintenu coincé dans le passage de la plaque de coupe.
  7. Procédé selon la revendication 1, caractérisé en ce que les platines sont coupées de la bande ou du ruban dans une position orientée dans le même sens ou le sens contraire au sens longitudinal de la bande ou du ruban.
  8. Système pour fabriquer des pièces de formage en tôle de forme quelconque au plan géométrique dans un matériau en bande ou en ruban pour la mise en oeuvre du procédé selon la revendication 1, comprenant une presse (2) incluant deux coulisseaux (3, 4) entraînés séparément, au moins un outil de coupe (8) entraîné par le premier coulisseau (3) de la presse pour le découpage de platines (9, 9.1) dans le matériau en bande ou en ruban, dont la partie inférieure d'outil (16) contient essentiellement une plaque de guidage (21) et un poinçon de coupe (22), et dont la partie supérieure d'outil (15) contient essentiellement la plaque de coupe (17), la plaque d'adaptation (19) et le poussoir (20), un dispositif préhenseur (12) pour le transport des platines dans une station de transfert (11) pour un transfert par préhenseur (10), qui amène les platines à un outil de transfert (13) entraîné par le second coulisseau (4) de la presse pour le formage de la platine dans la géométrie finale de la pièce de formage, caractérisé en que la plaque de coupe (17) de l'outil de coupe (8) présente à l'intérieur de son passage de plaque de coupe (25) un espace d'empilement (26) pour la réception d'un bloc empilable (30) d'un nombre (n) de platines découpées et légèrement calées les unes avec les autres, un chanfrein déflecteur (31) prévu dans le poussoir (20) et/ou sur la plaque d'adaptation (19) étant attribué à l'espace d'empilement (26) pour le détachement d'une platine (n-1) du bloc empilable (30) et en ce que le passage de plaque de coupe (26) est doté de moyens (28) pour le maintien du bloc empilable (30) dans l'espace d'empilement (26) lorsque l'outil de coupe est ouvert.
  9. Système selon la revendication 8, caractérisé en ce que le chanfrein déflecteur (31) est réalisé sur l'ouverture de logement (27) du poussoir (20).
  10. Système selon les revendications 8 et 9, caractérisé en ce que le chanfrein déflecteur (31) présente un angle (α) de 10 à 15°.
  11. Système selon la revendication 8, caractérisé en ce que la plaque d'adaptation (19) présente un chanfrein (32) pour la bavure affleurant des platines.
  12. Système selon la revendication 8, caractérisé en ce qu'un poussoir linéaire ou un poussoir rotatif est prévu comme poussoir (20).
  13. Système selon la revendication 8, caractérisé en ce que les moyens pour le maintien du bloc empilable (30) dans l'espace d'empilement (26) de la plaque de coupe (17) sont des entretoises (28) débordant verticalement de la paroi du passage de plaque de coupe (25).
  14. Système selon la revendication 8, caractérisé en ce que au moins deux platines sont découpées dans l'outil de coupe (17) par course, lesquelles platines sont disposées dans la bande ou le ruban, orientées dans un sens identique ou un sens contraire par rapport au sens de marche (L) de la bande ou du ruban (6).
  15. Système selon la revendication 8, caractérisé en ce que l'outil de coupe (17) et l'outil de transfert (13) sont couplés cinématiquement par un module de préhenseur (12) librement programmable et un transfert préhenseur (10) synchronisé avec le coulisseau (3 ; 4).
EP06077290A 2006-12-21 2006-12-21 Procédé et système destinés à la fabrication de pièces de déformage géométriquement variables à partir de matériau en bande Active EP1935527B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT06077290T ATE442216T1 (de) 2006-12-21 2006-12-21 Verfahren und system zum herstellen von umformteilen geometrisch beliebiger form aus band-oder streifenmaterial
DE502006004819T DE502006004819D1 (de) 2006-12-21 2006-12-21 Verfahren und System zum Herstellen von Umformteilen geometrisch beliebiger Form aus Band- oder Streifenmaterial
EP06077290A EP1935527B1 (fr) 2006-12-21 2006-12-21 Procédé et système destinés à la fabrication de pièces de déformage géométriquement variables à partir de matériau en bande
PCT/IB2007/004451 WO2008078199A2 (fr) 2006-12-21 2007-12-19 Procédé et système pour fabriquer des pièces façonnées de forme géométrique quelconque à partir de matériau en feuillard ou en bande

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06077290A EP1935527B1 (fr) 2006-12-21 2006-12-21 Procédé et système destinés à la fabrication de pièces de déformage géométriquement variables à partir de matériau en bande

Publications (2)

Publication Number Publication Date
EP1935527A1 EP1935527A1 (fr) 2008-06-25
EP1935527B1 true EP1935527B1 (fr) 2009-09-09

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EP06077290A Active EP1935527B1 (fr) 2006-12-21 2006-12-21 Procédé et système destinés à la fabrication de pièces de déformage géométriquement variables à partir de matériau en bande

Country Status (4)

Country Link
EP (1) EP1935527B1 (fr)
AT (1) ATE442216T1 (fr)
DE (1) DE502006004819D1 (fr)
WO (1) WO2008078199A2 (fr)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2412260A1 (de) * 1974-03-14 1975-09-18 Guenter Zierpka Vorrichtung zum schneiden und positionieren von platinen in pressen

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Publication number Publication date
EP1935527A1 (fr) 2008-06-25
DE502006004819D1 (de) 2009-10-22
WO2008078199A3 (fr) 2008-09-12
WO2008078199A2 (fr) 2008-07-03
ATE442216T1 (de) 2009-09-15

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