EP2036629B1 - Verfahren und Vorrichtung zum Feinschneidern und Umformen eines Werkstücks - Google Patents

Verfahren und Vorrichtung zum Feinschneidern und Umformen eines Werkstücks Download PDF

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Publication number
EP2036629B1
EP2036629B1 EP07018046A EP07018046A EP2036629B1 EP 2036629 B1 EP2036629 B1 EP 2036629B1 EP 07018046 A EP07018046 A EP 07018046A EP 07018046 A EP07018046 A EP 07018046A EP 2036629 B1 EP2036629 B1 EP 2036629B1
Authority
EP
European Patent Office
Prior art keywords
cutting
machining
effective elements
lower parts
transfer part
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
EP07018046A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2036629A1 (de
Inventor
Ulrich Dipl.-Ing. Schlatter
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.)
Feintool Intellectual Property AG
Original Assignee
Feintool Intellectual Property AG
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
Priority to PL07018046T priority Critical patent/PL2036629T3/pl
Application filed by Feintool Intellectual Property AG filed Critical Feintool Intellectual Property AG
Priority to PT07018046T priority patent/PT2036629E/pt
Priority to DE502007004202T priority patent/DE502007004202D1/de
Priority to ES07018046T priority patent/ES2346153T3/es
Priority to SI200730318T priority patent/SI2036629T1/sl
Priority to EP07018046A priority patent/EP2036629B1/de
Priority to DK07018046.8T priority patent/DK2036629T3/da
Priority to AT07018046T priority patent/ATE471776T1/de
Priority to MX2008011611A priority patent/MX2008011611A/es
Priority to CA2639502A priority patent/CA2639502C/en
Priority to JP2008234890A priority patent/JP2009066663A/ja
Priority to KR20080090395A priority patent/KR101495356B1/ko
Priority to US12/283,676 priority patent/US8132441B2/en
Priority to CN2008102135811A priority patent/CN101386044B/zh
Publication of EP2036629A1 publication Critical patent/EP2036629A1/de
Application granted granted Critical
Publication of EP2036629B1 publication Critical patent/EP2036629B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B13/00—Methods of pressing not special to the use of presses of any one of the preceding main groups
    • 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
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/26—Perforating, i.e. punching holes in sheets or flat parts
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B7/00—Presses characterised by a particular arrangement of the pressing members
    • B30B7/02—Presses characterised by a particular arrangement of the pressing members having several platens arranged one above the other

Definitions

  • the invention relates to a device for fine blanking and forming a workpiece from a tape strip, with a plurality of active elements such as cutting punch and / or forming element, guide plate for the cutting and / or forming element, arranged on the guide plate ring prongs and pressure plate of a top and insert, ejector , Crugeamboss and pressure plate of a base existing processing stages for a machining cycle of cutting, embossing, preforming and / or punching o.
  • the tape strip between closed upper and lower part is clamped and movable in the open position of the upper and lower part in the feed direction.
  • the invention further relates to a method for fine cutting and forming a workpiece from a Tape strip in which the tape strip in several, consisting of active elements such as punch, and / or forming element, guide plate, arranged on the guide plate and pressure plate of a top and cutting plate, ejector, Regeamboss and pressure plate of a base existing processing stages successively a processing cycle of cutting, embossing, Preforms and / or punching o. The like. Subjected, the tape strip between closed upper and lower part is clamped and processed and moved in the open position of the upper and lower parts in the feed direction cyclically.
  • active elements such as punch, and / or forming element
  • Fineblanked parts with reshaped functional areas are usually produced in progressive composite fineblanking tools, which comprise several successive stages with follow-on tools.
  • a cut blank is picked up by a cross slide and fed to the next processing stage with the tool open.
  • From the DE 21 65 224 A1 is a device for successively punching a plurality of mutually identical, for optimum utilization of the material nested parts of a sheet metal strip, or the like.
  • a step press in which a stamping frame is arranged, which serves to receive a cutting punch and a corresponding formed to this die, which are mutually to a Complete cutting or punching tool.
  • the cutting punch and the die are forcibly connected to each other via mechanical links, which after each cut, preferably during the passage of the press ram through the top dead center position, independently effect a synchronous horizontal rotary movement of the punch and die by 180 °. This is done so that the twisting takes place in each case half during the upward and downward stroke of the press ram.
  • the objective of this rotary movement is to achieve a material-saving nesting of the punched blanks.
  • each tool has a die and a punching member driven by the punching machine and the tools for their selective use in relation to the punching machine are positively driven.
  • the dies of the tools are connected to a compact unit and thereby rotatably mounted about an axis which coincides with the direction of movement of the drive of the punching machine.
  • the associated punching members also form a structural unit. Between the units, an effective guide is provided which ensures the same rotational positions and allows an approach and removal of the units.
  • a further disadvantage is that due to the transport of the cut parts by means of cross slide, the tool must be opened so that the cross slide can transport the cut part in the next processing stage.
  • the specific production times per part increase as a result.
  • the rams of the presses have to drive largely to their upper and lower dead center, which in turn limits the number of strokes. Often left abandoned or not detected by the cross slide waste slugs in the tool room in addition to disturbances of the manufacturing process and damage to the workpieces.
  • the present invention seeks to provide a method and apparatus for fine cutting small to medium parts, with which it is possible to massively save valuable material, the processing function of the active elements with the transport function of processing level to processing level with simultaneous increase of stroke rate and economic efficiency and to avoid disruptions in the production process by unexposed waste from the tool.
  • the solution according to the invention is characterized by; that the cutting plate takes over both the active function, ie active element for the cutting and / or forming process, as well as the transfer function for transporting the parts from processing stage to processing stage.
  • the cutting plate is therefore designed as a disc-shaped transfer part with a plurality of cutting elements adapted to the cutting elements, in which a blank can be cut from the tape strip and in which the cut piece of work or waste can be picked up for transport from one processing stage to another by clamping Transfer part about a parallel to the machining direction, located in the center of the transfer part virtual axis relative to the active elements of the upper part rotatable perpendicular to the machining direction after a stroke on the active elements of the lower part and the work openings are arranged in the transfer section on a common base circle, the distance corresponds to the processing stage of the axis, and that the processing elements of the upper part on the base circle are arranged fixedly spaced from each other, wherein the processing stages at least two diametrically opposite to the
  • the transfer part has to perform the lifting and rotating movement on the one hand held in a mounted on the pressure plate holder guide element for vertical displacement of the transfer member in the direction bolt axis against the guide plate and on the other hand rotatably mounted in the pressure piece pin for rotating the transfer part.
  • the lifting movement of the transfer part via the pressure piece of the lower part advantageously hydraulically by the pressure pin press the guide element in the direction of locking bolt axis.
  • the rotational movement of the transfer part then starts when the lifting movement is completed and the active elements of the lower part no longer disturb the rotational movement of the cutting plate.
  • the device according to the invention makes it possible, in addition to a single processing cycle, alternatively to carry out the processing stages of a plurality of processing cycles on base circles located concentrically to the virtual axis of rotation of the transfer part. This leads to a significant increase in production quantities.
  • the feed and discharge direction of the tape strip runs over the virtual axis of rotation of the transfer part, ie beyond the center of the base circle.
  • Each processing cycle is associated with at least one discharge channel, which is arranged leading outward depending on the number of processing stages.
  • the waste slugs are discharged in at least one separate, after running discharge channel.
  • the removal is preferably carried out by an outward blowing or tape transport.
  • the separate discharge of waste slugs has the advantage that the discharge of the finished workpieces is completely separated from the waste discharge. The risk that a disturbance in the production process will occur due to unexploded waste is thus largely ruled out.
  • the method according to the invention makes it possible to clamp the work piece cut out of the tape strip and / or the blank in a clamping manner in a work opening located on a circular path and to store it in the work opening.
  • a lifting movement with subsequent rotation about a the distance of the active elements from each other corresponding amount stored in the respective work piece workpiece progressively reaches the next processing stage, with each rotation step brought the active elements of the upper part and the active elements of the lower part to coincide and after adjustment and Close to complement a pair of the respective processing level.
  • the method according to the invention has the great advantage that several processing cycles can be carried out simultaneously, wherein a first processing cycle is carried out on a first base circle and a further processing cycle on a base circle which differs from the first base circle.
  • Fig. 1 a section through the device according to the invention in the open position of the upper and lower part along the line AA Fig. 2 .
  • Fig. 2 a plan view of the inventive device according to Fig. 1 .
  • Fig. 3 a section through the device according to the invention in the processing stage "cutting" at top dead center according to the inventive method
  • Fig. 4 a section through the device according to the invention in the processing stage "embossing" at top dead center according to the inventive method
  • Fig. 5 a section through the device according to the invention in the processing stage "ejection" at top dead center according to the inventive method.
  • the Fig. 1 shows the basic structure of the device according to the invention for producing a finely cut and formed workpiece W.
  • the device according to the invention has an upper part 1 and lower part 2.
  • the upper part 1 of the device according to the invention includes a guide plate 3 with ring point 4, a punch 5 for punching a tape strip 6, a cutting punch 7 for cutting a perforated blank 8 from the tape strip 6, an embossing die 9 (see Figure 4 ) for performing a stamping operation on the cut blank 8 and at least two locking bolts 10.
  • the active elements punch 5, cutting punch 7 and stamp 9 are guided in the guide plate 3. Their respective working direction is perpendicular to the tape strip 6.
  • the two locking bolts 10 are disposed near the outer edge of the guide plate 3 and are diametrically opposite.
  • the lower part 3 is formed from a socket 12, a disc-shaped cutting plate 13 with guide element 14, a waste channel 15, an ejector 16, an embossing boss 17 and a central bearing pin 18 which is fixed on the lower pressure plate 19.
  • Cutting plate 13 and guide member 14 form a common component which is rotatable.
  • corresponding cutting openings 20 are provided, which are associated with the active elements 5, 7 and 8 respectively.
  • the cutting plate 13 supports centrally with its guide element 14.
  • the guide member 14 is supported on its outer periphery of the socket 12, wherein in the plane E between the guide surfaces of the socket 12 and guide member 14, an unillustrated drive element acts, such as a stepper motor for generating the required drive torque for rotating the cutting plate 13 to their located on the axis of the journal 18 virtual axis A.
  • an unillustrated drive element acts, such as a stepper motor for generating the required drive torque for rotating the cutting plate 13 to their located on the axis of the journal 18 virtual axis A.
  • a lower under hydraulic pressure pressure pin 21 acts, with the aid of the cutting plate 13 together with its guide member 14 can perform a defined lifting movement in the direction perpendicular to the tape strip 6.
  • the ejector 16 as a counter-holder for the cutting punch 7 is supported by a further under pressure hydraulic pressure pin 22.
  • the disc-shaped cutting plate 13 In the disc-shaped cutting plate 13 are near its outer periphery a plurality of bolt openings 23 which are diametrically opposed. In closed delivery of upper and lower part 1 and 2, the two diametrically opposed locking bolts 10 each engage in a latch opening 23.
  • the bolt axis openings 23 are distributed along the circumference of the cutting plate 13 so that upon engagement of the locking bolt 10, the corresponding active elements of the upper and lower part 1 and 2 together an active pair , ie each can form a processing stage.
  • the tape strip 6 is in the closed position of Clamped upper and lower part between the guide plate 2 and cutting plate 13 and the ring prong 4 already penetrated into the tape strip 6.
  • the punch 5 and the corresponding cutting opening 20 of the cutting plate 13, cutting punch 7 in the upper part 1 and ejector 16 in the lower part 2 and die 9 in the upper part 1 and refgeamboss 18 in the lower part 2 form corresponding pairs of action, as in below Fig. 2 is described in more detail, lie on a common base circle GK, which has the virtual axis A to the center.
  • the Fig. 2 shows the device according to the invention in plan view, which illustrates the sequence of the method according to the invention.
  • the blank 8 possibly also an inner mold is cut into the cutting opening 20 of the cutting plate 13 from the Generale Research T1 of the tape strip 6 and not ejected.
  • the blank 8 remains in the cutting opening 20.
  • the cutting plate 13 including guide member 14 is lifted by the hydraulically actuated pressure pin 21 and rotated with the blank 8 located in the cutting opening 20 in the next following working position.
  • the rotation is in the clockwise direction to the rear of the device.
  • the upper and lower parts 1 and 2 are closed, wherein the locking bolts 10 engage in the corresponding locking holes 23 of the cutting plate 13.
  • the cutting plate 13 is now through the Lock bolt 10 is locked and it can on the blank 8, the next working operation, such as embossing or ejecting the slugs 26 in a channel 15 (see also Fig. 1 ).
  • the cutting plate 13 is in turn raised with the blank 8 remaining in the cutting opening 20 when opening the upper and lower part and rotated until the next following working position (processing stage) is reached.
  • the cutting plate 13 is locked as described in the second step and closed upper and lower parts.
  • the corresponding work operation is carried out, whereby the work steps repeat until the machining of the part is completed.
  • the finished workpiece is ejected from the cutting opening 20 of the cutting plate 13 in a channel 25 and removed for example by blowing out of the interior of the upper and lower part.
  • the released cutting opening 20 in the cutting plate 13 reaches the working position in the part T2 row of the tape strip 6, so that a reworking cycle in the clockwise direction on the front of the device can be carried out.
  • the individual pairs of action can be on concentrically arranged base circles GK, each having from the virtual axis of rotation A of the cutting plate 13 different radii R, so that several processing operations can be performed simultaneously.
  • Each processing cycle is a channel 25 for the removal of the finished workpieces to the outside.
  • the discharge direction AR of the finished parts can vary according to the number of active pairs (processing stages).
  • the angles ⁇ can therefore vary with respect to the feeding direction of the tape strip 6.
  • the channel 24 for the removal of the Abfallbutzen runs perpendicular to the feed direction of the tape strip 6 and is thus completely separated from the removal of the finished parts, so that corresponding disturbances are excluded by remaining remaining in the tool room slug remnants.
  • the Fig. 3 to 5 illustrate the steps cutting, embossing and ejection.
  • Upper and lower part 1 and 2 is closed and the tape strip 6 clamped between the guide plate 3 and socket 13.
  • the locking bolt 10 engages in the latch opening 23.
  • the cutting plate 13 is locked.
  • the punch 5 and the punch 7 have cut corresponding parts in the working opening 20 of the cutting plate 13.
  • the Fig. 4 shows the work embossing.
  • Upper part 1 and lower part 2 of the device according to the invention is closed and the cutting plate 13 is locked by the locking bolt 10.
  • the embossing stamp 9 and embossing boss 17 are in working position.
  • Fig. 5 the part output of finished fine cut and formed workpieces is shown.
  • a finished part is ejected and can be discharged, for example by blowing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Punching Or Piercing (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
  • Turning (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
EP07018046A 2007-09-14 2007-09-14 Verfahren und Vorrichtung zum Feinschneidern und Umformen eines Werkstücks Active EP2036629B1 (de)

Priority Applications (14)

Application Number Priority Date Filing Date Title
PT07018046T PT2036629E (pt) 2007-09-14 2007-09-14 Processo e dispositivo para corte de precisão e conformação de uma peça de obra
DE502007004202T DE502007004202D1 (de) 2007-09-14 2007-09-14 Verfahren und Vorrichtung zum Feinschneidern und Umformen eines Werkstücks
ES07018046T ES2346153T3 (es) 2007-09-14 2007-09-14 Procedimiento y dispositivo para cortar con precision y conformar una pieza.
SI200730318T SI2036629T1 (sl) 2007-09-14 2007-09-14 Postopek in naprava za fino odrezavanje in preoblikovanje obdelovanca
EP07018046A EP2036629B1 (de) 2007-09-14 2007-09-14 Verfahren und Vorrichtung zum Feinschneidern und Umformen eines Werkstücks
DK07018046.8T DK2036629T3 (da) 2007-09-14 2007-09-14 Fremgangsmåde og indretning til finstansning og omformning af et arbejdsemne
AT07018046T ATE471776T1 (de) 2007-09-14 2007-09-14 Verfahren und vorrichtung zum feinschneidern und umformen eines werkstücks
PL07018046T PL2036629T3 (pl) 2007-09-14 2007-09-14 Sposób i urządzenie do gładkiego wykrawania i obróbki plastycznej przedmiotów
MX2008011611A MX2008011611A (es) 2007-09-14 2008-09-10 Metodo y dispositivo para el corte de precision y deformacion de una pieza de trabajo.
CA2639502A CA2639502C (en) 2007-09-14 2008-09-11 Method and device for fine blanking and forming a workpiece
JP2008234890A JP2009066663A (ja) 2007-09-14 2008-09-12 工作物の精密打ち抜きおよび変形方法と装置
KR20080090395A KR101495356B1 (ko) 2007-09-14 2008-09-12 작업편을 정밀 블랭킹 하고 성형하는 장치 및 방법
US12/283,676 US8132441B2 (en) 2007-09-14 2008-09-15 Method and device for fine blanking and forming a workpiece
CN2008102135811A CN101386044B (zh) 2007-09-14 2008-09-16 用于精密冲裁和成型工件的方法和装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07018046A EP2036629B1 (de) 2007-09-14 2007-09-14 Verfahren und Vorrichtung zum Feinschneidern und Umformen eines Werkstücks

Publications (2)

Publication Number Publication Date
EP2036629A1 EP2036629A1 (de) 2009-03-18
EP2036629B1 true EP2036629B1 (de) 2010-06-23

Family

ID=38974657

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07018046A Active EP2036629B1 (de) 2007-09-14 2007-09-14 Verfahren und Vorrichtung zum Feinschneidern und Umformen eines Werkstücks

Country Status (14)

Country Link
US (1) US8132441B2 (pl)
EP (1) EP2036629B1 (pl)
JP (1) JP2009066663A (pl)
KR (1) KR101495356B1 (pl)
CN (1) CN101386044B (pl)
AT (1) ATE471776T1 (pl)
CA (1) CA2639502C (pl)
DE (1) DE502007004202D1 (pl)
DK (1) DK2036629T3 (pl)
ES (1) ES2346153T3 (pl)
MX (1) MX2008011611A (pl)
PL (1) PL2036629T3 (pl)
PT (1) PT2036629E (pl)
SI (1) SI2036629T1 (pl)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2842654A1 (de) 2013-08-26 2015-03-04 Feintool International Holding AG Vorrichtung und Verfahren zum Transfer von Werkstücken in und aus einem Werkzeug

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CA2639502A1 (en) 2009-03-14
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PL2036629T3 (pl) 2010-11-30
MX2008011611A (es) 2009-04-15
EP2036629A1 (de) 2009-03-18
JP2009066663A (ja) 2009-04-02
KR20090028471A (ko) 2009-03-18
CN101386044B (zh) 2012-11-21
CA2639502C (en) 2017-01-03
ES2346153T3 (es) 2010-10-11
KR101495356B1 (ko) 2015-02-24
SI2036629T1 (sl) 2010-09-30
US8132441B2 (en) 2012-03-13
PT2036629E (pt) 2010-08-20
CN101386044A (zh) 2009-03-18
ATE471776T1 (de) 2010-07-15

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