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EP2011585B1 - Werkzeug für das Gesenkschmieden mit einem Hammer - Google Patents

Werkzeug für das Gesenkschmieden mit einem Hammer Download PDF

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Publication number
EP2011585B1
EP2011585B1 EP20080158905 EP08158905A EP2011585B1 EP 2011585 B1 EP2011585 B1 EP 2011585B1 EP 20080158905 EP20080158905 EP 20080158905 EP 08158905 A EP08158905 A EP 08158905A EP 2011585 B1 EP2011585 B1 EP 2011585B1
Authority
EP
European Patent Office
Prior art keywords
die
column
tool according
previous
tool
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
EP20080158905
Other languages
English (en)
French (fr)
Other versions
EP2011585A1 (de
Inventor
Georgio Mariani
Christophe Perret
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.)
Safran Aircraft Engines SAS
Original Assignee
SNECMA SAS
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 SNECMA SAS filed Critical SNECMA SAS
Publication of EP2011585A1 publication Critical patent/EP2011585A1/de
Application granted granted Critical
Publication of EP2011585B1 publication Critical patent/EP2011585B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/02—Dies or mountings therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/04—Frames; Guides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/76—Making machine elements elements not mentioned in one of the preceding groups
    • B21K1/761—Making machine elements elements not mentioned in one of the preceding groups rings
    • 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
    • Y10T83/929—Tool or tool with support
    • Y10T83/9454—Reciprocable type

Definitions

  • the present invention relates to the stamping of metal parts by means of a pestle, more particularly the stamping of annular pieces and aims at securing means during the stamping operation.
  • Forging by stamping consists of forming by plastic deformation pieces blanks initially carried to a suitable temperature. These parts are made of non-ferrous alloys such as alloys of aluminum, copper, titanium, nickel, etc.
  • Forming is therefore a forging operation performed using a tool comprising matrices: an upper half-die and a lower half-die that are brought closer to one another.
  • the dies are engraved to the shape of the piece.
  • a pestle comprises two fixed frame members each supporting an insert holder and an insert or die.
  • the upper insert door guided by vertical columns is driven at a speed of 1 to 2 m / s against the lower insert holder on the die of which the blank to be tapped.
  • Both matrices are suitably engraved to give the desired shape.
  • the piece When the insert holder resumes its upward movement, the piece is released and thus has the tendency to jump and bounce.
  • the piece can leave the engraving, slide on the insert, or fall out of the matrix.
  • the coin can also turn around during the rebound;
  • a first object of the invention is to find a means relating to the stamping of an annular piece which, during a rebound of the piece, allows it to be retained on the tool.
  • Another object of the invention is to find a means which is also capable of retaining the piece in the center of the tool after the rebound.
  • Another object of the invention is to prevent the rollover of the workpiece.
  • the above objectives are achieved with tooling for tamping with a pylon of an annular piece comprising a lower insert door, with a lower die, cooperating with an upper insert door and an upper die, the two dies comprising an annular cavity of stamping.
  • the tooling is characterized in that it comprises a means for guiding the workpiece limiting its lateral movements when the latter is raised from the lower die.
  • the guiding means comprises a column formed between the two dies arranged inside the ring formed by the annular cavity.
  • a central column has the advantage of reducing the part in the die-casting cavity when the rebound forces it against the column, and avoids or limits the intervention of the forge-mate. This further reduces the risks of handling heavy parts and high temperatures.
  • the height of the column is at least equal to the bounce height of the part. The central arrangement by limiting the movement of the part also prevents its reversal by the rebound.
  • the column is integral with the lower matrix.
  • the lower die comprises a bore, formed in the axis of the ring formed by the die-casting cavity, in which the column is housed.
  • a wedging means is for example constituted by an axial clamping flange, which is provided with the column cooperating with a housing formed in the lower die.
  • the column is fixed and the upper die comprises a bore for receiving the upper part of the column.
  • the orifice formed in the upper die comprises a centering cone.
  • the invention also relates to the method of tamping the pestle of an annular piece of disposing a tool of the invention in the pestle and then to hit the piece by means of the tooling.
  • a column disposed at the center of the annular piece to be formed, cooperates with sealing elements to contain the metal being deformed.
  • the column in this type of press does not perform any guiding function or retention of the part because there is no rebound, the movement speeds being very low, less than 0.1 m / s.
  • a pestle 1 comprises a lower fixed frame 2 and an upper fixed frame 3 above it.
  • the two frames each support tools.
  • the lower tooling 20 comprises an insert holder 21 and an insert or die 22.
  • the upper tooling 30 comprises an insert holder 31 and an insert or die 32.
  • the dies are fixed in their respective insert holder removably either by hooping or by means of keys.
  • the two matrices 22 and 32 each comprise a stamping cavity and form between them, when they are placed one on the other, the volume of the part to be obtained.
  • a suitable mechanism ensures the movement of the two door inserts, one towards the other.
  • Piece P is struck and shaped in the die-in cavity.
  • Columns 34 mounted on the upper insert door cooperate with bores 24 formed in the lower insert holder to ensure the centering of the two dies relative to each other.
  • the tooling according to the invention is represented at figure 2 .
  • two matrices 122, 132 arranged one above the other: the upper matrix 132 above the lower die 122.
  • the two matrices are disk-shaped and etched on the surface of a cavity annular 122a and 132a respectively.
  • the two cavities 122a and 132a are coaxial and define between them an annular cavity of axis XX perpendicular to the plane of the matrix disks.
  • the cavity 122a-132a corresponds to the shape of the part after it has been struck between the two dies.
  • the two matrices are bored in their center.
  • the bore 122b passing through the lower die 122 is cylindrical with an axis XX of radius R1 with a widening 122c of radius R2> R1 in its lower part.
  • the bore 132b passing through the upper die is cylindrical with an axis XX of radius R 'slightly greater than R.
  • the bore comprises a flared portion 132c forming a centering cone.
  • a column 140 is engaged in the bore 122b.
  • the column comprises a flange 140a on its lower part whose shape corresponds to the enlarged portion 122c of the lower die.
  • the column is of diameter R and its height H is determined by the expected rebound of the coin struck.
  • the operation of the pestle is as follows. We have shown on the figure 3 the lower die 122 equipped with the column 140 and contained in its insert door. The column 140 is held in place by the flange which is immobilized between the insert and the bottom of the insert door.
  • the upper die 132 is mounted on the upper insert door vis-à-vis the lower die. In this position, the bore 132b is located in the extension of the column 140.
  • the upper insert door is equipped with guide and centering columns 134 which cooperate with bores formed in the upper insert holder. These columns have the function of ensuring correct positioning of the two matrices relative to each other at the time of coining the coin.
  • the blank piece E is placed on the lower die in the cavity 122a and the striking mechanism is actuated.
  • the upper matrix is driven against the lower matrix.
  • the projecting portion of the column is engaged in the bore 132b.
  • the introduction of the column 140 into the bore is facilitated by the centering cone.
  • the radius of the bore of the upper die is sufficient relative to that of the column to avoid unwanted friction.
  • the speed of displacement of the upper matrix is 1 to 2 m / s.
  • the piece By the applied energy, the piece is shaped to the cavities 122a-132a. In the same movement the matrix is raised and the piece bounces on a certain height which is a function of the mechanical energy that has been transferred to it.
  • the annular piece moves upward and tilts to one side. This tilting movement is stopped by the projecting portion of the column. The coin falls back into the central area of the lower die. If the piece has not fallen back into the annular cavity 122a, the operator can easily manipulate it to place it correctly without risk.
  • the height of the column is sufficient so that the piece is not projected over it.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Catching Or Destruction (AREA)
  • Percussive Tools And Related Accessories (AREA)

Claims (10)

  1. Werkzeug für das Gesenkschmieden mit einem Hammer eines ringförmigen Werkstücks, umfassend einen unteren Einsatzhalter mit einer unteren Matrix (122), der mit einem oberen Einsatzhalter und einer oberen Matrix (132) zusammenarbeitet, wobei die zwei Matrizen einen ringförmigen Gesenkschmiedehohlraum (122a, 132a) umfassen, dadurch gekennzeichnet, dass es ein Mittel zur Führung des Werkstücks umfasst, das seine seitlichen Bewegungen begrenzt, wenn es aus der unteren Matrix gehoben wird.
  2. Werkzeug nach dem vorhergehenden Anspruch, wobei das Mittel zur Führung eine Säule (140) umfasst, die zwischen den zwei Matrizen (122, 132) im inneren des Kranzes angebracht ist, der durch den kreisförmigen Hohlraum (122a, 132a) gebildet wird.
  3. Werkzeug nach dem vorhergehenden Anspruch, wobei die Säule (140) mit der unteren Matrix (122) einstückig ist.
  4. Werkzeug nach dem vorhergehenden Anspruch, wobei die untere Matrix (122) eine Bohrung (122b) umfasst, die in der Achse (XX) des Kranzes angebracht ist, der durch den Gesenkschmiedehohlraum (122a, 132b) gebildet wird, in dem die Säule (140) gelagert ist.
  5. Werkzeug nach dem vorhergehenden Anspruch, wobei die Säule einen Flansch (140a) zur axialen Klemmung umfasst, der mit einer Lagerung zusammenarbeitet, die in der unteren Matrix angebracht ist.
  6. Werkzeug nach einem der Ansprüche 2 bis 5, wobei die Höhe der Säule (140) zumindest gleich der Rücksprunghöhe des Werkstücks ist.
  7. Werkzeug nach einem der Ansprüche 3 bis 5 oder 6 in Kombination mit 3, wobei die obere Matrix (132) eine Bohrung (132b) für die Aufnahme des hervorstehenden Teils der Säule (140) umfasst.
  8. Werkzeug nach dem vorhergehenden Anspruch, wobei die Bohrung, die in der oberen Matrix angebracht ist, einen Zentrierkegel umfasst.
  9. Werkzeug nach einem der vorhergehenden Ansprüche, umfassend Führungssäulen zwischen dem unteren Einsatzhalter und dem oberen Einsatzhalter.
  10. Verfahren zum Gesenkschmieden mit einem Hammer eines ringförmigen Werkstücks, umfassend die Anbringung eines Werkzeugs im Hammer nach einem der Ansprüche 1 bis 9, dann das Schlagen des Werkstücks mithilfe des Werkzeugs.
EP20080158905 2007-06-25 2008-06-24 Werkzeug für das Gesenkschmieden mit einem Hammer Active EP2011585B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0704546A FR2917653B1 (fr) 2007-06-25 2007-06-25 Outillage pour le matricage au pilon

Publications (2)

Publication Number Publication Date
EP2011585A1 EP2011585A1 (de) 2009-01-07
EP2011585B1 true EP2011585B1 (de) 2011-01-19

Family

ID=38947689

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080158905 Active EP2011585B1 (de) 2007-06-25 2008-06-24 Werkzeug für das Gesenkschmieden mit einem Hammer

Country Status (8)

Country Link
US (1) US8181501B2 (de)
EP (1) EP2011585B1 (de)
JP (1) JP5503849B2 (de)
CA (1) CA2634944C (de)
DE (1) DE602008004592D1 (de)
FR (1) FR2917653B1 (de)
IL (1) IL192432A (de)
RU (1) RU2465977C2 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103831335B (zh) * 2014-03-01 2017-03-15 东莞虹日金属科技有限公司 一种高张力板成型装置
CN104226822A (zh) * 2014-09-25 2014-12-24 哈尔滨汽轮机厂有限责任公司 一种轻型燃气轮机透平空心静叶片导流芯成型用模具
CN104325028A (zh) * 2014-11-17 2015-02-04 贵州贵航汽车零部件股份有限公司 一种生产汽车电器开关密封零件的静压铆接装置
CN106001258A (zh) * 2016-07-02 2016-10-12 安徽碧源环保工程有限公司 矿用托盘一次成型液压机
CN108748747A (zh) * 2018-07-05 2018-11-06 深圳市喜钻珠宝科技有限公司 珠宝高效钻孔装置
CN116604649B (zh) * 2023-06-02 2025-07-25 重庆鼎佳绝缘材料有限公司 一种组合模切装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2342021A (en) * 1940-09-20 1944-02-15 Standard Forgings Corp Apparatus for making pierced forged hubs and the like
US3388583A (en) * 1966-02-08 1968-06-18 Maximilian K. Nye Precision ram structure for drop hammers
JPS5140664A (ja) * 1974-07-09 1976-04-05 Davy Loewy Ltd Tanzopuresu
IL72025A (en) * 1984-06-05 1986-08-31 Israel State Method and machine for producing a metallic ring with specially contoured surfaces from a ring-shaped blank of selected cross-section
US4918956A (en) * 1987-08-27 1990-04-24 The Minster Machine Company Monitorable and compensatable feedback tool and control system for a press using a solid tool backup element
US4860567A (en) * 1987-12-21 1989-08-29 United Technologies Corporation Ring forging process
RU2028862C1 (ru) * 1990-03-23 1995-02-20 Арановский Виктор Антонович Способ объемной штамповки
AUPR406701A0 (en) * 2001-03-29 2001-04-26 Bishop Innovation Limited Crown wheel forging method and apparatus
JP4353696B2 (ja) * 2002-12-25 2009-10-28 パナソニック株式会社 流体軸受部材の製造方法および流体軸受部材ならびにハードディスク装置
DE10356269B3 (de) * 2003-11-28 2005-04-07 Institut für Umformtechnik Universität Stuttgart Vorrichtung zur Abdichtung des Spaltes zwischen sich relativ zueinander bewegenden Werkzeugteilen gegen das Eindringen von flüssigen oder teilflüssigen metallischen Werkstoffen in diesen Spalt
EP1689542A2 (de) * 2003-12-01 2006-08-16 Knipex-Werk C. Gustav Putsch VERFAHREN ZUM GESENKSCHMIEDEN UND SCHMIEDEVORRICHTUNG ZUR DURCHFÜHRUNG DES VERFAHRENS
RU2300439C2 (ru) * 2005-07-21 2007-06-10 Государственное образовательное учреждение высшего профессионального образования "Южно-Уральский государственный университет" СПОСОБ ШТАМПОВКИ КОЛЬЦЕОБРАЗНЫХ ПОКОВОК КОНИЧЕСКИХ ШЕСТЕРЕН ДИАМЕТРОМ 638 мм

Also Published As

Publication number Publication date
EP2011585A1 (de) 2009-01-07
RU2465977C2 (ru) 2012-11-10
US20090000452A1 (en) 2009-01-01
CA2634944C (fr) 2015-01-20
FR2917653B1 (fr) 2009-10-16
JP5503849B2 (ja) 2014-05-28
US8181501B2 (en) 2012-05-22
DE602008004592D1 (de) 2011-03-03
RU2008125793A (ru) 2009-12-27
CA2634944A1 (fr) 2008-12-25
IL192432A0 (en) 2009-02-11
JP2009006399A (ja) 2009-01-15
FR2917653A1 (fr) 2008-12-26
IL192432A (en) 2012-02-29

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