EP2303488A1 - Procédé et dispositif pour la production de pièces découpées de précision à partir d'une bande de matériau - Google Patents

Procédé et dispositif pour la production de pièces découpées de précision à partir d'une bande de matériau

Info

Publication number
EP2303488A1
EP2303488A1 EP09772089A EP09772089A EP2303488A1 EP 2303488 A1 EP2303488 A1 EP 2303488A1 EP 09772089 A EP09772089 A EP 09772089A EP 09772089 A EP09772089 A EP 09772089A EP 2303488 A1 EP2303488 A1 EP 2303488A1
Authority
EP
European Patent Office
Prior art keywords
cutting
strip
fine
material strip
die insert
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.)
Granted
Application number
EP09772089A
Other languages
German (de)
English (en)
Other versions
EP2303488B1 (fr
Inventor
Willi Grimm
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
Application filed by Feintool Intellectual Property AG filed Critical Feintool Intellectual Property AG
Priority to EP20090772089 priority Critical patent/EP2303488B1/fr
Publication of EP2303488A1 publication Critical patent/EP2303488A1/fr
Application granted granted Critical
Publication of EP2303488B1 publication Critical patent/EP2303488B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B21D28/10—Incompletely punching in such a manner that the parts are still coherent with the work
    • 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
    • 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
    • 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
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0448—With subsequent handling [i.e., of product]
    • Y10T83/0467—By separating products from each other
    • 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
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0524—Plural cutting steps
    • Y10T83/0529—Blanking and cutting
    • 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
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/06—Blanking
    • 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
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2074—Including means to divert one portion of product from another
    • Y10T83/2079—Remaining or re-inserted product portion from base material

Definitions

  • BESTATIGUNGSKOPIE with at least one cutting plate and a punch for cutting the fine blank from a strip of material
  • Stamp cooperates with a counter-holder in an insert when pressing out the stamped part, wherein the
  • JP 11309522 A a method for punching a stamped part from a plate-shaped strip material is known, in which the stamped part remains connected along its circumference with the strip material in a first cutting operation and the semifinished product is finished with the main punch in a second step. Also in this known method, the tool must be fully opened, which leads to the limitation of the number of press strokes and limits the use of presses at low speeds.
  • the solution according to the invention is characterized in that the unfinished complete cut along the circumference of the fine blanking with a specially shaped cutting edge of cutting punch and / or cutting plate is performed so that the fine blanking part at least a partial connecting portion on the material strip at about the top or lower level at an altitude relative to the material strip initially remains materially bonded and then moved together with the strip of material in the direction of the strip to a subsequent demolding (ejector), in the fine blank and strip of material by breaking the fine blank without vertical shear force component and without a back perpendicular to the direction of the strip of material down to be separated from each other, wherein the demoulded fine cutting part is discharged through a chute in the cutting plate.
  • the fine blanking part is cut to about 80 to 90% of its circumference completely from the strip of material. There are only individual connection areas or points between the fine blank and the strip of material.
  • the fine blanking part is held after the unfinished complete cut on the material strip in particular by two or more connecting parts. These connection parts are arranged so that they do not come to lie in the area of the important functional surfaces of the fine blanking part during later breaking.
  • connection points between the material strip and fine blanking produced by the special shape of the cutting edges of cutting punch and / or inserts in conjunction with the kinematics of the fine blanking press used, which always moves regardless of the thickness variations of the strip of material in the same vertical position of the two relevant cutting edges.
  • the special shape of the cutting edges of Matrizenrus and / or cutting punch consists of a partially shaped chamfer, which may vary in length and / width and / or inclination and interrupts the cutting edge of Matrizenrus and / or cutting punch accordingly, so that the fine cutting part the material strip is not completely cut and remains bonded to partial bonding parts on the material strip approximately at its upper or lower level in an altitude relative to the material strip.
  • the Matrizen lake is interchangeable and re-sharpening and reusable.
  • the height or material loss on the die insert resulting from the regrinding can be very easily compensated for by documents of different thickness placed in the receiving space below the die insert, enabling flexible and cost-effective spare parts stocking with a high material utilization of the die inserts.
  • Fig. 2 is a sectional view of the design of
  • Fig. Ia shows the device according to the invention with inserted strips of material 2 in the open state of the upper tool part 3 and lower tool part 4.
  • the lower tool part 4 includes a cutting plate 5, which has a receiving space 6 for receiving a die insert 7, wherein the 5 cutting plate rests on a base plate 8.
  • the die insert 7 is shown in FIG. 1a as a tubular insert, but may also have other more complicated shapes. At its periphery of the die insert 7 is held for example by a screw, not shown in the cutting plate 5 under uniform bias, so that the forces occurring during cutting can be safely absorbed by die insert 7.
  • the die insert 7 is thus can be removed from the receiving space 6 of the cutting plate 5 and can be reground accordingly if necessary.
  • the die insert 7 Compared with the cutting plate 5, the die insert 7 has a height offset H, so that the die insert 7 is well above the level of the cutting plate 5.
  • This height offset H is dimensioned such that it corresponds approximately to the material thickness of the material strip 2.
  • the upper tool part 3 and lower tool part 4 of the device according to the invention are opened so far that the imported material strip with the tailed fine cutting part 1 has sufficient space in the direction R of the material strip 2.
  • the die insert 7 is a cutting punch 11 in the upper tool part 3 for cutting the fine blanking part 1 from the strip of material 2 and the chute 9 a
  • Fig. Ib shows the closed upper tool part 3 and lower tool part 4 with clamped between die insert 7 and the guide plate 10 strips of material 2.
  • the clamping takes place around the cutting geometry, so that the fine cutting specific clamping forces are concentrated on a narrow range.
  • Fig. Ic shows the operation of the method according to the invention, in which the cutting punch 5 has performed an incomplete complete section in the strip of material 2 and the fine part cutting part 1 is cut to about 80 to 90% of its circumference.
  • the fine blanking part 1 remains connected to, for example, a narrow connecting portion 14 with the material strip 2 cohesively after the cut.
  • the incomplete complete cut is achieved by a corresponding preparation of the cutting edges 15 of die insert 7 and / or cutting punch 11 in conjunction with the kinematics of the fine blanking press used, which always moves independently of the thickness variations of the strip of material in the same vertical position of the cutting edges of die insert 7 and cutting punch 11 , reached.
  • the cutting edge 15 of the die insert 7 can be broken, for example, along its edge profile by one or more chamfers 16. Of course, it is part of the solution according to the invention if the width and / or length and / or inclination of these bevels vary.
  • the strip of material 1 forms after the cutting process with the tailed fine cutting part 1 a composite that can be transported without any relative movement in the vertical direction with the device according to the invention open in the direction R up to the demolding stage, because by the opposite Matrizendon 7 deeper laid cutting plate 5 a sufficient space of about the material thickness of the
  • Fig. 3 shows a section of the device according to the invention for preventing the demolition of the connecting parts 14 from the material strip 2 and the pressing back of the fine blanking part 1 in the material strip 2 when opening the tool, which is particularly advantageous for components with small Auswerfer practicen.
  • the punch 11 is associated with an ejector 20 which is acted upon by pressure pins 21 with the counter-force FHG.
  • a Einlegerring 18 is added, in which a spring assembly 19 is arranged that acts in the direction of the hydraulic counter-holding force FGH and thus supports them.
  • the spring pack 19 can relax, so that connecting section 14 between fine blank 1 and strips of material 2 intact, ie without demolition of the cutting plate, can be ejected.
  • the cutting punch 11 and the guide plate 10 remain unchanged during this phase in its vertical position, whereby a pushing back of the fine cutting part 1 is prevented in the material strip 2.
  • Fineblanking part 1 Fineblanking part 1

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)
EP20090772089 2008-07-03 2009-06-17 Procédé et dispositif pour la production de pièces découpées de précision à partir d'une bande de matériau Active EP2303488B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20090772089 EP2303488B1 (fr) 2008-07-03 2009-06-17 Procédé et dispositif pour la production de pièces découpées de précision à partir d'une bande de matériau

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP20080012011 EP2140954B1 (fr) 2008-07-03 2008-07-03 Procédé et dispositif de fabrication de parties coupantes fines d'une bande de matériau
PCT/EP2009/004364 WO2010000389A1 (fr) 2008-07-03 2009-06-17 Procédé et dispositif pour la production de pièces découpées de précision à partir d'une bande de matériau
EP20090772089 EP2303488B1 (fr) 2008-07-03 2009-06-17 Procédé et dispositif pour la production de pièces découpées de précision à partir d'une bande de matériau

Publications (2)

Publication Number Publication Date
EP2303488A1 true EP2303488A1 (fr) 2011-04-06
EP2303488B1 EP2303488B1 (fr) 2012-02-08

Family

ID=39884537

Family Applications (2)

Application Number Title Priority Date Filing Date
EP20080012011 Not-in-force EP2140954B1 (fr) 2008-07-03 2008-07-03 Procédé et dispositif de fabrication de parties coupantes fines d'une bande de matériau
EP20090772089 Active EP2303488B1 (fr) 2008-07-03 2009-06-17 Procédé et dispositif pour la production de pièces découpées de précision à partir d'une bande de matériau

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP20080012011 Not-in-force EP2140954B1 (fr) 2008-07-03 2008-07-03 Procédé et dispositif de fabrication de parties coupantes fines d'une bande de matériau

Country Status (5)

Country Link
US (1) US8910549B2 (fr)
EP (2) EP2140954B1 (fr)
JP (1) JP5698125B2 (fr)
AT (2) ATE524251T1 (fr)
WO (1) WO2010000389A1 (fr)

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DE102014000299B3 (de) * 2014-01-15 2015-07-16 Rixen Wolfgang Verfahren zur Erzeugung von Durchgängen in einem metallischen Körper mittels Hochgeschwindigkeitsscherschneiden sowie dessen Verwendung
JP6567292B2 (ja) * 2014-03-17 2019-08-28 株式会社東亜鍛工所 孔を有する金属板の製造方法、周設孔付外歯歯車の製造方法及び金属板の製造方法
WO2016098145A1 (fr) * 2014-12-18 2016-06-23 黒田精工株式会社 Dispositif de maintien en sens inverse pour dispositif de moulage à alimentation vers l'avant et dispositif de moulage à alimentation vers l'avant pourvu de celui-ci
CN104959447B (zh) * 2015-07-14 2017-03-01 武汉理工大学 一种偏载主动平衡精冲模具结构
CN105290225A (zh) * 2015-11-20 2016-02-03 重庆庆建机械配件有限公司 一种油门组合活动块落料冲孔模具
CN106025769B (zh) * 2016-07-27 2018-09-11 广东欧珀移动通信有限公司 电源适配器、移动终端及电源接口的制造方法
CN106111801A (zh) * 2016-08-31 2016-11-16 成都宏明双新科技股份有限公司 一种异形壳体拉深成型精密级进模
CN107377767A (zh) * 2017-08-23 2017-11-24 中山市创智智能科技有限公司 Usb弹片加工模具
JP7116477B2 (ja) * 2018-08-07 2022-08-10 株式会社フロンティア 抜き落とし加工装置及び抜き落とし加工方法
CN112004620B (zh) * 2018-10-31 2021-12-21 竹内忍 进行板材加工的加工装置及加工方法
JP7263887B2 (ja) * 2019-03-29 2023-04-25 株式会社アイシン プレス加工装置
CN110560571B (zh) * 2019-10-14 2024-05-17 珠海格力精密模具有限公司 钣金模具
DE102020107890A1 (de) 2020-03-23 2021-09-23 William Prym Gmbh & Co. Kg Verfahren zur Herstellung eines Bauteils mit glatten Schnittflächen, insbesondere in einem Folgeverbundwerkzeug
CN111451360A (zh) * 2020-04-07 2020-07-28 汤强兵 一种垫片冲压模具
CN112692159B (zh) * 2020-12-08 2023-01-24 倍升互联(北京)科技有限公司 一种cpu散热器用散热片自冲孔设备
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CN117380832B (zh) * 2023-12-11 2024-02-20 常州惠武精密机械有限公司 一种具有定位功能的喷丝板加工用冲孔机

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Also Published As

Publication number Publication date
JP2011526212A (ja) 2011-10-06
JP5698125B2 (ja) 2015-04-08
EP2303488B1 (fr) 2012-02-08
ATE524251T1 (de) 2011-09-15
US8910549B2 (en) 2014-12-16
US20110132162A1 (en) 2011-06-09
ATE544541T1 (de) 2012-02-15
EP2140954B1 (fr) 2011-09-14
WO2010000389A1 (fr) 2010-01-07
EP2140954A1 (fr) 2010-01-06

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