EP2701862A1 - Procédé et dispositif pour fabriquer de pièces embouties dotées d'une bride en les ébarbant simultanément - Google Patents

Procédé et dispositif pour fabriquer de pièces embouties dotées d'une bride en les ébarbant simultanément

Info

Publication number
EP2701862A1
EP2701862A1 EP12717670.9A EP12717670A EP2701862A1 EP 2701862 A1 EP2701862 A1 EP 2701862A1 EP 12717670 A EP12717670 A EP 12717670A EP 2701862 A1 EP2701862 A1 EP 2701862A1
Authority
EP
European Patent Office
Prior art keywords
area
drawing die
cutting edge
board
flange
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
EP12717670.9A
Other languages
German (de)
English (en)
Other versions
EP2701862B1 (fr
Inventor
Thomas Flehmig
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.)
ThyssenKrupp Steel Europe AG
Original Assignee
ThyssenKrupp Steel Europe 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 ThyssenKrupp Steel Europe AG filed Critical ThyssenKrupp Steel Europe AG
Publication of EP2701862A1 publication Critical patent/EP2701862A1/fr
Application granted granted Critical
Publication of EP2701862B1 publication Critical patent/EP2701862B1/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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20—Deep-drawing
    • B21D22/22—Deep-drawing with devices for holding the edge of the blanks
    • 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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02—Stamping using rigid devices or tools
    • 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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20—Deep-drawing
    • B21D22/30—Deep-drawing to finish articles formed by deep-drawing
    • 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
    • B21D24/00—Special deep-drawing arrangements in, or in connection with, presses
    • B21D24/16—Additional equipment in association with the tools, e.g. for shearing, for trimming

Definitions

  • the invention relates to a method for the production of flanged drawn parts from a flat and / or preformed metal circuit board using a
  • Drawing punch with at least one cutting edge or rounding, a hold-down and a drawing die, wherein the
  • Drawing die has a Zargen Suite, a flange and a support area for the board, the board placed on the support area of the drawing die and through
  • the invention relates to an apparatus for producing flanged drawn parts with a
  • Drawing punch which at least one cutting edge or
  • Drawing punch perform the cutting process in a stretch-drawing step of the board, so that during the cutting process, the material is under heavy tensile load and the
  • Flange area runs after the cut.
  • Flange area can thus not be manufactured with high process reliability dimensionally accurate drawn parts.
  • Flange area must also extend obliquely to the frame area to a scraping at the sharp cutting edge
  • Deep-drawing presses do not have a high-precision tool guide, so that trimming operations in such presses are not possible or can only be carried out with great difficulty and complexity.
  • the present invention is therefore an object
  • the object of a method is achieved in that the
  • the cutting edge or rounding provided on the drawing punch engages with a rounding or cutting edge provided at the transition between the support region and the flange region, so that regions of the blanket projecting beyond the flange region are separated during the further drawing process.
  • the support area is raised in relation to the flange area and formed in a fixed manner, so that the tool as a whole can be of considerably simplified construction.
  • Support area and flange area of the die at least equal to the thickness of the board can be a flawless
  • Flange area is trimmed before completion of the drawing process.
  • the method allows a particularly simple construction of the tool, which without
  • Cutting edge for example, on the drawing punch and the
  • the rounding along the cutting line has a varying one
  • the cutting line formed by the rounding with the cutting edge can then have, for example, a wavy course or an inclined course.
  • the rounding has a radius of at least 0.5 mm.
  • a cutting edge with a maximum radius of 0.5 mm is advantageous if a cutting edge with a maximum radius of 0.5 mm
  • inventive method be further improved by the fact that the board before pulling in the drawing die in a
  • Pulling die is pulled into a preform and the
  • preformed board provides a surplus of material, so that when reaching the end position of the drawing die the finished shaped and trimmed board is calibrated.
  • the excess material can preferably be provided in the bottom region and / or in the drawing radius.
  • Preforming process During hot forming, the blanks are heated to austenitizing temperature, thermoformed and rapidly cooled so that the drawn part is press hardened.
  • the hot forming is used in blanks made of higher-strength or ultrahigh-strength steels, for example of the 22MnB5 type.
  • Section line partially material, preferably in the form of webs to stand, i. a broken one
  • Cut line whereby the drawn part is at least partially still connected to the trim area and at the same time can be removed from the tool
  • the cut area can be separated from the good part.
  • the object indicated by a device is achieved in that the support area relative to the flange increased and fixed, wherein the height difference between the support area and the flange of the
  • Drawing dies at least the wall thickness of the reshaping
  • Flange area a rounding or cutting edge is provided, which is in engagement with a cutting punch provided on the cutting edge or rounding in engagement and trimming the
  • the device according to the invention thus comes without
  • the difference in height between the support area of the board and the flange area allows the flange of the drawn part to be formed very precisely into the flange area after it has been trimmed.
  • the device allows for a larger
  • Flexibility is achieved with respect to the alignment of the flange area relative to the frame area.
  • the cost-effective tool with its simple design reduces wear and thus the cost of producing precise, flanged drawing parts.
  • Wall thickness of the reshaped board, the collection of the flange portion of the drawn part over the height difference or over the Flanschbereisbreite can be controlled or adjusted.
  • a larger height difference between support area and flange area allows more material to be provided here and the flange area to have less feed.
  • a minimum indentation must be ensured so that the drawn drawn part can still be removed from the tool.
  • the precision of trimming the flange of the drawn part is improved in that the cutting edge of the drawing punch or the drawing die has a maximum radius of 0.5 mm.
  • the rounding along the cutting line on a varying engagement height with the cutting edge so that the cutting edge at the beginning of the cutting process is only partially or partially engaged with the rounding.
  • the rounding or the Cutting edge be provided either on the drawing punch or in the drawing die.
  • the varying in its engagement height with the cutting edge rounding allows a continuous
  • the device according to the invention can be further improved by the fact that the support area with the drawing die highly precise, for example via a
  • the drawing die is connected or formed integrally with the drawing die. If the support area is formed integrally with the drawing die, the drawing die can be produced particularly inexpensively. On the other hand, there are significant advantages in the pinning of the support area with the drawing die in terms of maintenance. In this case, there is the possibility of the support area
  • FIG. 1 is a schematic sectional view of a half of a first embodiment of a
  • FIG. 5 shows the embodiment of FIG. 4 upon reaching the end position of the drawing punch
  • Fig. 6 is a schematic sectional view of the course of the rounding of the support area according to a third embodiment
  • FIG. 7 in a schematic sectional view of a fourth
  • FIG. 1 shows a first embodiment of a device according to the invention for the production of
  • Flange is formed, a frame portion 4 and a
  • the rounding has an inlet radius of at least 0.5 mm, so that the material from the support area 6 can flow unhindered into the flange area.
  • the support area 6 is raised relative to the flange area 3 and fixed
  • Embodiment h is slightly larger than the board thickness.
  • the directional arrows each indicate the direction of movement of the blank holder 7 and the drawing punch 1.
  • the drawing punch 1 also has a cutting edge 9, which preferably has a radius of 0.05 mm.
  • a cutting edge 9 which preferably has a radius of 0.05 mm.
  • the board 10 is pulled into the drawing die until the cutting edge 9 engages with the rounding 8.
  • the hold-down is shut down at the beginning of the drawing process, so that it presses the board 10 against the support area 6 of the board.
  • Drawing die 2 is particularly simple and yet allows deep drawing with simultaneous trimming of the board.
  • the support area 6 is in the present embodiment formed integrally with the drawing die, which is a
  • Wear is subject to a particularly simple manner.
  • Fig. 3 shows a schematic sectional view of a half of a device 11 for producing a
  • preformed board 12 which, for example, in
  • Device 11 for producing a preformed circuit board also consists of a die 13 and a drawing punch 14 and a holding-down device 15.
  • the preformed board 12 is inserted in the device according to a second embodiment, the preformed
  • FIG. 4. shows that the engagement of the cutting edge with the inlet contour takes place before completion of the drawing process.
  • FIG. 5 shows schematically the embodiment of a device according to the invention in the final position of the drawing punch with calibrated, preformed board 12. The insertion of the board in the flange area is minimal and so
  • the rounding 8 between support region 6 and flange region 3 is shown schematically along its section line 8b.
  • the section line 8b of the rounding 8 has a wave-shaped course, so that the cutting edge 9 of the
  • Target section contour of the rounding 8 denotes, which corresponds to the desired dimension of the board.
  • the illustration in Fig. 6 is not to scale.
  • the rounding can be corrected in a simple manner in one work step.
  • a sawtooth or a linear profile of the engagement height of the rounding can be used. This is shown, for example, in FIG. 7 schematically.
  • the rounding 8 has a small inlet radius, for example 1 mm.
  • the inlet radius is significantly larger, for example, 5 mm.
  • the cutting edge initially engages the left side first and continues its cut to the right side by retracting the draw punch into the die.
  • the cutting gaps, which are provided between the cutting edge 9, 8 'and rounding 8, 9', are preferably 0.05 mm to a maximum of 0.2 mm in order to ensure a particularly precise trimming of the board.
  • the cutting gaps which are provided between the cutting edge 9, 8 'and rounding 8, 9', are preferably 0.05 mm to a maximum of 0.2 mm in order to ensure a particularly precise trimming of the board.
  • the cutting gaps which are provided between the cutting edge 9, 8 'and rounding 8, 9', are preferably 0.05 mm to a maximum of 0.2 mm in order to ensure a particularly

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

L'invention concerne un procédé pour fabriquer des pièces embouties dotées d'une bride à partir d'une platine (10, 12) en métal en utilisant un poinçon d'emboutissage (1) ayant au moins une arête de coupe (9) ou une courbure (91), un serre-flanc (7) et une matrice d'emboutissage (2), cette dernière (2) présentant une zone d'encadrement (4), une zone de bride (3) ainsi qu'une zone d'appui (6) pour la platine (10, 12), cette dernière (10, 12) étant placée sur la zone d'appui (6) de la matrice d'emboutissage (2) et étant déformée par introduction du poinçon d'emboutissage (1) dans la pièce à emboutir dans la matrice d'emboutissage (2) et étant ébarbée sur la zone de bride (3). Le but consistant à mettre à disposition un tel procédé et un tel dispositif qui permettent une structure simple de l'outil, un système à autocentrage et en même temps une fabrication précise et sûre de pièces embouties dotées d'une bride est atteint du fait que la zone d'appui (6) est surélevée par rapport à la zone de bride (3) et est conçue immobile, la différence de hauteur (4) correspondant au moins à l'épaisseur de paroi de la platine (10, 12), l'arête de coupe (9) ou la courbure (91) disposée sur le poinçon d'emboutissage (1) entre en prise avec une courbure (8) ou une arête de coupe (81) disposée sur la transition entre zone d'appui (6) et zone de bride (3) pendant l'introduction du poinçon d'emboutissage (1) dans la matrice d'emboutissage (2) de sorte que des zones de la platine (10, 12) faisant saillie au-delà de la zone de bride (3) soient ébarbées pendant la poursuite de l'opération d'emboutissage.
EP12717670.9A 2011-04-29 2012-04-25 Procédé et dispositif pour fabriquer de pièces embouties dotées d'une bride en les ébarbant simultanément Active EP2701862B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011050002A DE102011050002A1 (de) 2011-04-29 2011-04-29 Verfahren und Vorrichtung zur Herstellung flanschbehafteter Ziehteile mit gleichzeitigem Beschnitt
PCT/EP2012/057527 WO2012146602A1 (fr) 2011-04-29 2012-04-25 Procédé et dispositif pour fabriquer de pièces embouties dotées d'une bride en les ébarbant simultanément

Publications (2)

Publication Number Publication Date
EP2701862A1 true EP2701862A1 (fr) 2014-03-05
EP2701862B1 EP2701862B1 (fr) 2017-03-29

Family

ID=46022212

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12717670.9A Active EP2701862B1 (fr) 2011-04-29 2012-04-25 Procédé et dispositif pour fabriquer de pièces embouties dotées d'une bride en les ébarbant simultanément

Country Status (10)

Country Link
US (1) US9643231B2 (fr)
EP (1) EP2701862B1 (fr)
JP (1) JP2014512276A (fr)
CN (1) CN103534045B (fr)
DE (1) DE102011050002A1 (fr)
ES (1) ES2630304T3 (fr)
HU (1) HUE032994T2 (fr)
PL (1) PL2701862T3 (fr)
PT (1) PT2701862T (fr)
WO (1) WO2012146602A1 (fr)

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DE102012100230B4 (de) 2012-01-12 2017-10-19 Thyssenkrupp Steel Europe Ag Vorrichtung und Verfahren zur Herstellung von Schalenteilen
MX2016004682A (es) * 2013-11-13 2016-07-22 Nippon Steel & Sumitomo Metal Corp Herramienta de punzonado de placa de acero y metodo de punzonado.
WO2015163418A1 (fr) * 2014-04-25 2015-10-29 本田技研工業株式会社 Dispositif d'usinage de matériau sous forme de plaque et procédé d'usinage de matériau sous forme de plaque
DE102016118419A1 (de) * 2016-09-29 2018-03-29 Thyssenkrupp Ag Verfahren und Vorrichtung zum Herstellen von Bauteilen mit angepasstem Bodenbereich
CN106391815A (zh) * 2016-11-03 2017-02-15 南京航空航天大学 一种改善冲压拉深件壁厚均匀性的装置及方法
CN108723198B (zh) * 2018-06-19 2024-03-12 广州市翔翎金属制品有限公司 一种钣金件拉伸模具及钣金件拉伸方法
CN110216194B (zh) * 2019-06-28 2023-09-15 常州东仕豪机械制造有限公司 支撑管连续模具
IT201900018446A1 (it) * 2019-10-10 2021-04-10 Contital S R L Procedimento per la realizzazione di un piatto monouso per pietanze e piatto così ottenuto
CN114733952A (zh) * 2022-03-21 2022-07-12 深圳市长盈精密技术股份有限公司 屏蔽件的成型方法及其连续模模具

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Also Published As

Publication number Publication date
US9643231B2 (en) 2017-05-09
JP2014512276A (ja) 2014-05-22
HUE032994T2 (en) 2017-11-28
DE102011050002A1 (de) 2012-10-31
CN103534045A (zh) 2014-01-22
ES2630304T3 (es) 2017-08-21
WO2012146602A1 (fr) 2012-11-01
PL2701862T3 (pl) 2017-09-29
US20140047890A1 (en) 2014-02-20
PT2701862T (pt) 2017-07-11
EP2701862B1 (fr) 2017-03-29
CN103534045B (zh) 2016-12-28

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