EP3797893B1 - Dispositif de découpage fin / découpage normal d' ébauches d'une bande métallique ainsi que de travail en plusieurs étapes des ébauches au moyen d' outils de coupe et de façonnage - Google Patents

Dispositif de découpage fin / découpage normal d' ébauches d'une bande métallique ainsi que de travail en plusieurs étapes des ébauches au moyen d' outils de coupe et de façonnage Download PDF

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Publication number
EP3797893B1
EP3797893B1 EP20180923.3A EP20180923A EP3797893B1 EP 3797893 B1 EP3797893 B1 EP 3797893B1 EP 20180923 A EP20180923 A EP 20180923A EP 3797893 B1 EP3797893 B1 EP 3797893B1
Authority
EP
European Patent Office
Prior art keywords
rotary
metal strip
blanks
slides
workpiece
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.)
Active
Application number
EP20180923.3A
Other languages
German (de)
English (en)
Other versions
EP3797893A1 (fr
Inventor
Stephane Pauer
Kai Oppermann
Andreas Peters
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.)
Meteor Umformtechnik & Co Kg GmbH
Original Assignee
Meteor Umformtechnik & Co Kg GmbH
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
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Publication of EP3797893A1 publication Critical patent/EP3797893A1/fr
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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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/16—Shoulder or burr prevention, e.g. fine-blanking
    • 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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • 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
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/08—Dies with different parts for several steps in a process
    • 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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/14—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by turning devices, e.g. turn-tables

Definitions

  • the invention relates to a device for fine blanking/standard punching of blanks from a metal strip and for multi-stage machining of the blanks using cutting and machining tools, the blanks being punched out being fed to the various machining tools on both sides of the metal strip by at least one rotary slide having transfer openings.
  • the device for fine blanking of blanks has the fundamental disadvantage that the overall size of the device is very large, especially when it has numerous machining tools for the blank.
  • the object of the invention is therefore to create a new device for fine blanking/standard punching of blanks from a metal strip and for multi-stage processing of the blanks using cutting and processing tools, with which a larger number of of cutting and processing tools can be used.
  • the device according to the invention has the significant advantage that a large number of cutting and processing tools can be positioned in a very small space, not only through the use of at least two spaced-apart driven rotary slides, but even more importantly through the intersecting movement paths of the different transfer openings of the rotary slides At the same time, the overall size of the device does not increase.
  • Normal stamping means the production of components with the help of a press and a cutting tool without using a counter force / ring tooth force.
  • fineblanking describes the production of components using a press and a cutting tool using a counterforce with or without ring teeth, but with hold-down force.
  • punching tools regardless of whether they are “standard punching” or “fine blanking".
  • the term “two-dimensional” workpiece is to be understood as meaning that the dimensions of the workpiece lie within the contour of the rotary slide after machining.
  • the term “three-dimensional” workpiece is to be understood as meaning a workpiece whose dimensions extend at least partially outside the contour of a rotary slide.
  • the at least two rotary slides are also arranged in the device so that they can move vertically. Consequently, it is possible in a particularly advantageous manner not only to machine blanks which, even after machining, are completely immersed in the contour of the rotary slide, but also to produce blanks which clearly protrude beyond the contour of the rotary slide.
  • the area of use of the device according to the invention is significantly larger, which has a positive effect on the manufacturing costs of each individual workpiece.
  • the device according to the invention for fine blanking/standard blanking is provided with the reference number 10 as a whole.
  • the figure 1 shows a perspective overall view of a first embodiment of the device 10.
  • the device 10 consists of an upper tool 11 and a lower tool 12, which holds a metal strip 13.
  • the metal strip 13 moving in the direction of an arrow T has punched holes SL.
  • the upper tool 11 consists of a base plate 14 and a downstream intermediate plate 15. Between the base plate 14 and the intermediate plate 15, the upper tool 11 has guide columns 17 which are guided through the intermediate plate 15 in order to cooperate with guide bushings 30 of the lower tool 12.
  • the lower tool 12 consists of a base plate 29 with the guide bushings 30.
  • the guide columns 17 of the upper tool 11 engage in the guide bushings 30 of the lower tool 12.
  • the base plate 29 there are also two identically configured matrix receptacles 31, in which 1 only a matrix receptacle 31 can be seen.
  • the second die holder 31 is rotated by 180° about a center point (not shown) (see black box BX 2 in 3 ) arranged on the opposite side of the metal strip 13.
  • the matrix receptacles 31 form a recess for the arrangement of a chute 32, via which the finished workpieces W are discharged from the device 10.
  • the upper tool 11 is shown in detail in perspective from below.
  • Guide plates 16 and 19 with active elements of the upper part are arranged on the intermediate plate 15 .
  • two strip guide elements 18 are fastened to the base plate 14, which serve to guide the metal strip 13 (not shown).
  • the guide plate 19 has two first punching tools 20 . These punching tools 20 are used from the 1 illustrated metal strip 13 to work out the blanks R.
  • the intermediate plate 15 are those with pressure bolts D (see 1 ) to be moved guide plates 16 and 19 with cutting and machining tools 21 provided.
  • the aforementioned processing tools 21 are punching tools 22, an embossing tool 23, second punching tools 24, third punching tools 25, edge embossing tools 26, lettering embossing tools 27 and ejectors 28.
  • a black box BX 1 is shown on the other side of the metal strip 13 .
  • This black box BX 1 is a placeholder for a second guide plate 16 which, starting from the aforementioned first guide plate 16 and the processing tools 21, is arranged rotated by 180° about a central axis of the device 10 (not shown).
  • the figure 3 shows the lower tool 12 in perspective from above in detail.
  • the arrangement of the matrix receptacle 31 can be seen.
  • a first rotary valve 33 and a larger, second rotary valve 34 are in figure 4 pivot pin units 36, 37 shown are arranged rotatably in the matrix receptacle 31, the two rotary slides 33, 34 being driven together.
  • the rotary slides 33 and 34 each have transfer openings 35, which serve to receive the blanks R/partially machined workpieces W.
  • the first rotary slide 33 has three transfer openings 35.1 to 35.3 and the second rotary slide 34 has three transfer openings 35 4 to 35.7.
  • the finished workpiece W is removed from the device 10 in the direction of the arrow C from the transfer opening 35.7.
  • the transfer openings 35.1 to 35.7 of the rotary slides 33, 34 are provided with clamping grippers, not shown, which hold the blanks R or the workpieces W firmly in the respective transfer openings 35.1 to 35.7 during transport within the device, so that they are held securely in the rotary slides 33, 34 can be transported.
  • the partially machined workpieces W are each shown as an example in the transfer openings 35.1 to 35.7.
  • the partially machined workpieces W have already been machined using the tools 22 to 27 .
  • the machining of the partially machined workpieces W with the tools 22 to 27 takes place when the upper tool 11 and lower tool 12 are moved together.
  • the active elements F of the upper tool 11 are pressed with their free ends, which are designed as tools 22 to 27, onto the blanks R/partially machined workpieces W resting on the ejector units 38, so that these are machined in accordance with the tools 22 to 27.
  • the partially machined workpiece W 24 is arranged, which was produced by means of the second punching tool 24.
  • the partially processed workpiece W 25 is shown, which has been formed from W 24 into the partially processed workpiece W 25 by means of the third punching tool 25 .
  • the partially machined workpiece W 26 which has already been formed by the edge embossing tool 26 , lies below the transfer opening 35 . 5 .
  • the finished workpiece W 27 is transferred into the transfer opening 35.7, so that the finished workpiece W 27 by means of the in the 2 shown ejector 28 is discharged from the device 10.
  • ejector units 38.1 to 38.8 are arranged in the die receptacle 31, on which the blank R/partially machined workpiece W 22 to W 27 is arranged during machining.
  • the figure 4 shows the schematic representation of a first embodiment of the device 10 with the first rotary valve 33 and the second rotary valve 34, which are driven together and are always moved within a common plane.
  • the first rotary valve 33 is fixed on the pivot pin unit 36 and the second rotary valve 34 on the pivot pin unit 37 .
  • the first rotary slide 33 forms the transfer openings 35.1 to 35.3 and the second rotary slide 34 forms the transfer openings 35.4 to 35.7.
  • the path of movement of the blanks R/partially machined workpieces W (not shown) from the first rotary slide 33 to the second rotary slide 34 and out of the device 10 is shown on the basis of the dashed line L (see FIG 20 ) shown schematically.
  • FIG. 21 Figure 12 shows the finished "two-dimensional" workpiece W 27 which has been punched, embossed, punched twice, edge embossed from below and from above and letter embossed.
  • a second embodiment of the device 10 is shown.
  • the movement sequence of just one blank R/workpiece W is shown purely schematically, with all transfer openings 35.1 to 35.7 of the rotary slides 33, 34 actually being occupied by a blank R/partially machined workpiece W during operation of the device 10, so that a total of 14 Blanks / partially machined workpieces W can be produced simultaneously.
  • the Figures 5 to 20 show different positions of the rotary slide 33 and 34 in plan view including a blank R / partially machined workpiece W, while the Figures 5a and 6a show the associated sectional views according to section lines Va to Vla.
  • the figures 5b , 6b and 6c are intermediate positions between the figures 5 and 7 shown.
  • FIGs 5 and 5a are the rotary valve 33, 34 in a starting position A 1 .
  • the blank R has already been punched out of the metal strip 13 and, as in Figure 5a to see on an ejector unit 38.1 in a plane H- 1 .
  • the metal band 13 and the rotary slides 33, 34 are arranged in a plane H 0 .
  • the Figure 5b shows that the blank R is still on the ejector unit 38.1 in a plane H -1 .
  • the metal strip 13, on the other hand, has been moved to the level H 1 so that a free space is created between the blank R and the metal strip 13 .
  • the rotary slides 33 and 34 remain in the starting position A 1 in the plane H 0 .
  • the Figures 6 to 6c show the pick-up position A 2 .
  • the rotary valve 33, 34 are in the Figures 6 and 6a still arranged in the plane H 0 .
  • the rotary slide 33 has now been moved in the direction of P1 over the blank R, which is still lying on the ejector unit 38.1 in the plane H -1 .
  • Parallel to the rotational movement of the first rotary slide 33, the second rotary slide 34 was moved counterclockwise in direction P 2 so that the first rotary slide 33 has sufficient free space for the opposite movement in direction P 1 .
  • the rotary slide 33 is moved vertically into the level H 1 and shifted from the pick-up position A 2 to the next processing position, in which the blank R is now moved to the next Ejector unit 38.2 in level Ho, as in 7 shown, relocated and reworked into workpiece W 22 .
  • the second rotary slide 34 with the transfer opening 35.4 is moved into the transfer position in order to pick up the partially machined workpiece W 24 with the transfer opening 35.4 from the ejector unit described above in order to take the workpiece W 24 to the next machining position to be transported further.
  • the 20 the ejection of the finished workpiece W 27 from the device 10 using the ejector 28 (not shown) in direction C.
  • FIG 22 is a schematic representation of a third embodiment of the device 10 with three rotary slides 39, 40, 41, which are driven together and are always arranged in the same plane.
  • the rotary slides 39, 40, 41 are arranged on pivot bolt units, not shown, which enable the rotary movement of the rotary slides 39, 40 and 41, respectively.
  • the rotary slides 39, 40 and 41 are each provided with transfer openings 42 for receiving blanks R/partially machined workpieces W.
  • the rotary slide 39 forms two transfer openings 42.1 and 42.2
  • the second rotary slide 40 forms two transfer openings 42.3 and 42.4
  • the third rotary slide 41 forms four transfer openings 42.5 to 42.8. the end.
  • the dashed line L shows schematically the path of movement of the blank R/partially machined workpiece W from the first rotary slide 39 to the third rotary slide 41 and out of the device 10, as shown by the arrow C, out.
  • Figures 23 to 40 show the individual processing and pick-up positions of the blank R/partly processed workpiece W, which is moved from the first rotary slide 33 to the third rotary slide 39 within the device 10.
  • the Figures 23 to 40 show the trajectory of the blank R / partially machined workpiece from the metal strip 13 to ejection from the device 10 by means of the rotary slides 39, 40 and 41.
  • the blank R / the partially machined workpiece W is machined using eight different tools.
  • one blank R / one workpiece W in all Figures 23 to 40 shown undifferentiated as a blank R, although this has also been processed step by step by tools and formed into a workpiece W.
  • the figures 27 and 31 show the respective transfer positions of the blank R/the partially machined workpieces W to the respective subsequent rotary slide 40, 41.
  • the transfer of the partially machined workpiece W from the first rotary slide 39 to the second rotary slide 40 is shown in detail.
  • the respective trajectories are shown by the dotted line B.
  • the completely overlapping movement paths of the transfer openings 42.2 of the rotary slide 39 and the transfer opening 42.3 of the rotary slide 40 overlap. This means that the blank R / the machined workpiece W from the transfer opening 42.2 of the first rotary slide 39 into the transfer position on a not shown Ejector unit has been filed.
  • the second rotary slide 40 with the transfer opening 42.3 was moved into the transfer position in order to pick up the blank / the partially machined workpiece W with the transfer opening 42.3 from the ejector unit described above in order to move the workpiece W to the next To transport further processing position.
  • the figure 31 shows a transfer of the partially machined workpiece W from the second rotary valve 40 to the third rotary valve 41, wherein the Movement paths of the transfer opening 42.4 of the second rotary slide 40 and the transfer opening 42.5 of the third rotary slide 41 also completely overlap here, as already shown in FIG 27 described.
  • the figure 41 shows the schematic representation of a fourth embodiment of the device 10 with two differently vertically movable rotary slides 43, 44.
  • the rotary slides 43, 44 form the transfer openings 45.1 to 45.7.
  • the respective rotary valve 43, 44 are arranged in different planes.
  • the two rotary slides 43, 44 are designed to be rotatable by means of a pivot pin unit (not shown).
  • the directional arrows P 4 and P 5 show the respective directions of movement of the rotary slides 43, 44, with an arrow V showing the direction of movement of the metal strip 13.
  • Figures 42 to 44 show exemplary workpieces W, which with the device according to Figures 5 to 20 have been manufactured.
  • the device 10 according to the invention for fine blanking/standard punching allows the arrangement of a large number of cutting and processing tools 21 with the same size of installation space.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Punching Or Piercing (AREA)

Claims (9)

  1. Dispositif (10) pour le découpage fin / l'estampage normal d'ébauches (R) à partir d'une bande métallique (13), ainsi que pour l'usinage en plusieurs étapes des ébauches (R) au moyen d'outils de découpe et d'usinage (21), dans lequel les ébauches (R) estampées sont envoyées de chaque côté de la bande métallique (13) chacune par au moins une glissière pivotante (33, 34) vers les différents outils d'usinage (21), caractérisé en ce que, de chaque côté de la bande métallique (13) sont disposées au moins deux glissières pivotantes (33, 34) entraînées espacées, avec chacune une multitude d'orifices de transfert (35), deux orifices de transfert (35) de glissières pivotantes (33, 34) différentes présentant des trajectoires (B) qui se croisent et l'intersection des trajectoires (B) correspondant à la position de transfert des ébauches (R) / pièces (W) usinées.
  2. Dispositif (10) selon la revendication 1, caractérisé en ce que les au moins deux glissières pivotantes (33, 34 ; 43, 44) sont agencées dans le dispositif de façon mobile verticalement.
  3. Dispositif (10) selon la revendication 1 ou 2, caractérisé en ce que les au moins deux glissières pivotantes (33, 34 ; 43, 44) sont entraînées dans des sens opposés.
  4. Dispositif (10) selon une des revendications précédentes, caractérisé en ce qu'au voisinage de chaque côté de la bande métallique (13), trois glissières pivotantes (39, 40, 41) coopèrent entre elles.
  5. Dispositif (10) selon une des revendications précédentes, caractérisé en ce que les glissières pivotantes (33, 34 ; 39, 40, 41 ; 43, 44) voisines disposées de chaque côté de la bande métallique (13) présentent des actionneurs couplés de force entre eux.
  6. Dispositif (10) selon une des revendications précédentes, caractérisé en ce que les glissières pivotantes (33, 34 ; 39, 40, 41 ; 43, 44) voisines constituent des formes géométriques différentes entre elles s'interpénétrant partiellement dans le mouvement de rotation.
  7. Dispositif (10) selon une des revendications précédentes, caractérisé en ce que deux des glissières pivotantes (33, 34 ; 39, 40, 41 ; 43, 44) agencées de chaque côté de la bande métallique (13) constituent des formes géométriques identiques.
  8. Dispositif (10) selon une des revendications précédentes, caractérisé en ce qu'une des glissières pivotantes (34, 41, 43) est de forme approximativement trapézoïdale.
  9. Dispositif (10) selon une des revendications précédentes, caractérisé en ce qu'une des glissières pivotantes (33, 39, 40, 43) est de forme approximativement triangulaire.
EP20180923.3A 2019-09-24 2020-06-18 Dispositif de découpage fin / découpage normal d' ébauches d'une bande métallique ainsi que de travail en plusieurs étapes des ébauches au moyen d' outils de coupe et de façonnage Active EP3797893B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019125690.9A DE102019125690B3 (de) 2019-09-24 2019-09-24 Vorrichtung zum Feinschneiden oder Normalstanzen von Rohlingen aus einem Metallband sowie zum mehrstufigen Bearbeiten der Rohlinge mittels Schneid- und Bearbeitungswerkzeugen

Publications (2)

Publication Number Publication Date
EP3797893A1 EP3797893A1 (fr) 2021-03-31
EP3797893B1 true EP3797893B1 (fr) 2022-03-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20180923.3A Active EP3797893B1 (fr) 2019-09-24 2020-06-18 Dispositif de découpage fin / découpage normal d' ébauches d'une bande métallique ainsi que de travail en plusieurs étapes des ébauches au moyen d' outils de coupe et de façonnage

Country Status (4)

Country Link
EP (1) EP3797893B1 (fr)
DE (1) DE102019125690B3 (fr)
ES (1) ES2912562T3 (fr)
MA (1) MA52715A (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3831426A (en) * 1972-09-29 1974-08-27 R Hakner Progressive stamping device having work stations in a curvilinear path
SI1914022T1 (sl) * 2006-09-01 2009-08-31 Feintool Ip Ag Postopek in naprava za proizvodnjo tridimenzionalnega okovja, izdelanega z operacijami preoblikovanja in finega rezanja
DK2036629T3 (da) * 2007-09-14 2010-10-25 Feintool Ip Ag Fremgangsmåde og indretning til finstansning og omformning af et arbejdsemne
DE102013009270A1 (de) * 2013-01-23 2014-08-07 Keiper Gmbh & Co. Kg Verfahren und vorrichtung zum transport eines metallwerkstücks relativ zu einem werkzeug
ES2684526T3 (es) * 2013-08-26 2018-10-03 Feintool International Holding Ag Equipo y procedimiento para transferir piezas de trabajo a y desde una herramienta

Also Published As

Publication number Publication date
MA52715A (fr) 2021-03-31
EP3797893A1 (fr) 2021-03-31
DE102019125690B3 (de) 2020-08-27
ES2912562T3 (es) 2022-05-26

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