EP1568423A1 - Procédé de préformage d'une ébauche par des rouleaux - Google Patents

Procédé de préformage d'une ébauche par des rouleaux Download PDF

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Publication number
EP1568423A1
EP1568423A1 EP05003264A EP05003264A EP1568423A1 EP 1568423 A1 EP1568423 A1 EP 1568423A1 EP 05003264 A EP05003264 A EP 05003264A EP 05003264 A EP05003264 A EP 05003264A EP 1568423 A1 EP1568423 A1 EP 1568423A1
Authority
EP
European Patent Office
Prior art keywords
blank
contour
preforming
forming
rollers
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
EP05003264A
Other languages
German (de)
English (en)
Other versions
EP1568423B1 (fr
Inventor
Axel Wittig
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.)
Mueller Weingarten AG
Original Assignee
Mueller Weingarten 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 Mueller Weingarten AG filed Critical Mueller Weingarten AG
Publication of EP1568423A1 publication Critical patent/EP1568423A1/fr
Application granted granted Critical
Publication of EP1568423B1 publication Critical patent/EP1568423B1/fr
Not-in-force 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
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H8/00—Rolling metal of indefinite length in repetitive shapes specially designed for the manufacture of particular objects, e.g. checkered sheets
    • 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
    • B21J13/02—Dies or mountings therefor
    • B21J13/025—Dies with parts moving along auxiliary lateral directions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/12—Forming profiles on internal or external surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H1/00—Making articles shaped as bodies of revolution
    • B21H1/18—Making articles shaped as bodies of revolution cylinders, e.g. rolled transversely cross-rolling
    • B21H1/20—Making articles shaped as bodies of revolution cylinders, e.g. rolled transversely cross-rolling rolled longitudinally

Definitions

  • the invention relates to a method and a device for Preforming a blank in a massive forming process.
  • Both the cross rolling and the stretching rollers allow a optimal geometric adaptation of the mass distribution on embformteil to the requirements of the drop forging of elongated parts.
  • the material surplus in the final form is thereby minimized and evenly distributed and allows one Low-cost drop forging.
  • By adjusting the rolled Intermediate shape to the final shape of the finished forged part be constant forming forces and thus minimal tolerances of Prefabricated parts ensured in the pressing direction.
  • will Relative movements in the pressure contact zone between the workpiece and Engraving reduces and thus the wear of the dies reduced.
  • Another disadvantage is the complex, constructive Design of the preforming device and the associated high costs.
  • the invention is based on the object, a method and a To develop a device for preforming a forging which is inexpensive at a high productivity and in the transfer of a forging press can be integrated.
  • the essence of the invention is a method in which a fixed blank of at least one, preferably two, itself moving continuously along a given contour Roller is deformed.
  • the feed movement of the contour roller done by a linear drive.
  • the path of the contour rollers during the feed is preferred determined by two profile inserts whose profile is negative Form of the preform corresponds.
  • the contour of the profile inserts plastically transformed.
  • roll preforming e.g. one
  • the Contour rollers are performed with the appropriate radius.
  • contour rollers on support the side facing away from the blank on straight plates which by adjusting the distance between the plates to Modify the blank axis so that the blank corresponds accordingly is preformed.
  • actuators for example Servomotors or hydraulic motors are used.
  • the blank is fixed with a turning pliers. After one Umform trimlauf is the turning pliers and thus the partially formed Blank rotated by 90 °. In this position, the rolling process repeated. As a result, the blank has an approximate rotationally symmetrical intermediate form achieved. It is also conceivable more than two rolling cycles with correspondingly lower Twist angle to drive to improve the preforming result. If the blank is e.g. from a flat bar, of course, can also a forming pass already the required intermediate form result.
  • the blank of the turning pliers held and, for example, two ejector bolts radially from supported below.
  • Another feature of the Tweezers is one elongation or stretching caused by preforming compensate.
  • the Profile inserts designed such that the contour rollers from the Pull out the forming area.
  • the ejector bolts now lift the preformed blank on the workpiece transport plane. This is then gripped by the transfer system of the forging press and is transported through the corresponding forming station.
  • the inventive device for this method can as independent forming unit or in the stand area of the Forging press be positioned. This allows the device for roll preforming cost in the existing press transfer device to get integrated.
  • a standalone solution in which the proposed Device in front of the forging press with separate Feeder is placed is also possible.
  • the proposed preforming method can be both with and without additional heat treatment can be used. Also suitable If the process for different materials such. Steel or aluminum.
  • the Device according to the invention also several times one above the other be operated arranged. According to the number of used devices increases the degree of deformation.
  • the Application is arranged several times one above the other Device same as when using only one Contraption.
  • this linear force is by a hydraulic Drive generated, but also a power transmission by a mechanical drive is possible.
  • the power transmission from the drive to the contour rollers must such that they are perpendicular to the plane in a plane Movement direction are freely movable to the contour of Follow profile assignments. This is achieved by a Gabeakopf on the two arms hinged and scissor-shaped are. At these two arms are the two contour rollers rotatably mounted. The arms on which the contour rollers are mounted are additionally acted upon by a spring force in such a way Be sure that the contour rollers on retraction and extension safely abut the contour. During preforming, the blank becomes by a stop plate against the feed direction or force supported.
  • the inventive Device to be equipped with a guide sleeve, which stabilizes the blank during the forming process. This is achieved through a sleeve, which the blank until just before the Area of forming encloses and from the articulated arms in Direction of the blank axis against a spring force taken becomes. This will cause bulging or skewing of the Preventing blanks by forming.
  • the profile inserts in a plane perpendicular to the blank axis be fixed. This can be done by a mechanical stop be done, but also other constructive solutions, such as Example a dimensionally stable frame, both profile inserts encloses are possible.
  • the profile inserts, the stop plate and the frame form so a device or a tool for roll preforming. This is done by known methods, e.g. with wedges or Clamps on a fixed table so braced that without big Expense the tool can be changed. Of course, too only an exchange of profile inserts done.
  • a mechanical one Stop in and against the feed direction of Hydraulic cylinder on the fixed table makes sense.
  • FIG. 1 shows a device 1 for roll preforming shown.
  • a solid, rigid frame 4 is attached.
  • To the Side walls of this frame 4 are two profile inserts. 6 attached. These profile inserts point towards the middle directed side on a contour that on the final contour of the preformed blank 7 is tuned.
  • the blank 7 supports on one side on a stop plate 5 from which also attached to the frame 4. At the other end, the Blank held by a turning pliers 13.
  • the device 1 for roll preforming in section shown.
  • ejector pins 12 which during the Preforming the blank 7 supported from below.
  • a drive not shown, for For example, a hydraulic cylinder, in direction 9 via a Drive linkage 11 on the outer contour of the profile inserts. 6 to be moved along.
  • the outer contour is characterized by the Contour rollers 8 is pressed into the blank 7.
  • the Profile inserts 6 are at the beginning and end with one from the Blank 7 removal contour executed so that the Contouring rollers 8 at the beginning and at the end of the preforming process of Move blank 7 away.
  • the contour rollers 8 become, for example by a spring force acting on the arms of the drive rod 11 acts, pressed to the contour of the profile inserts 6.
  • the Drive linkage 11 consists essentially of 2 arms, which in are mounted a common pivot point 10.
  • the contour rollers 8 are already out of the area, in which takes place a reshaping, brought out and enable a lifting of the preformed blank 7 by the Ejector pin 12.
  • the invention is not limited to the illustrated and described Embodiment limited. It also includes all expert training in the context of the invention Thought.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
EP05003264A 2004-02-20 2005-02-16 Procédé de préformage d'une ébauche par des rouleaux Not-in-force EP1568423B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004008800 2004-02-20
DE102004008800A DE102004008800A1 (de) 2004-02-20 2004-02-20 Verfahren und Vorrichtung zum Vorformen eines Rohlings in einem Massivumformprozess

Publications (2)

Publication Number Publication Date
EP1568423A1 true EP1568423A1 (fr) 2005-08-31
EP1568423B1 EP1568423B1 (fr) 2007-04-25

Family

ID=34745254

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05003264A Not-in-force EP1568423B1 (fr) 2004-02-20 2005-02-16 Procédé de préformage d'une ébauche par des rouleaux

Country Status (4)

Country Link
US (1) US7237417B2 (fr)
EP (1) EP1568423B1 (fr)
DE (3) DE102004008800A1 (fr)
ES (1) ES2285585T3 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9573184B2 (en) 2013-12-18 2017-02-21 United Technologies Corporation Deep rolling tool for processing blade root
US9566638B2 (en) 2013-12-18 2017-02-14 United Technologies Corporation Deep rolling tool with force adjustment
US9421602B2 (en) * 2013-12-18 2016-08-23 United Technologies Corporation Machine for deep rolling tool positioning
US9573175B2 (en) 2013-12-18 2017-02-21 United Technologies Corporation Deep rolling tool for blade fatigue life enhancement
WO2015105655A1 (fr) * 2014-01-07 2015-07-16 United Technologies Corporation Systèmes et procédés de détermination de trajectoire d'outil pour le durcissement par écrouissage superficiel automatisé à fourche souple
CN106694561A (zh) * 2016-12-19 2017-05-24 苏州唐氏机械制造有限公司 可控压辊机构
CN112792220B (zh) * 2020-12-18 2022-12-09 珠海格力智能装备有限公司 整形设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2069883A (en) * 1980-02-26 1981-09-03 Proizv Obiedine Method for manufacturing profiled beams from slabs of rectangular cross section
FR2750351A1 (fr) * 1996-06-27 1998-01-02 Lorraine Laminage Procede et dispositif de calibrage en largeur d'un demi-produit siderurgique tel qu'une brame d'acier
DE10048312A1 (de) * 2000-09-29 2002-04-25 Benteler Werke Ag Abstreckvorrichtung
WO2003039787A1 (fr) * 2001-11-07 2003-05-15 Bishop Manufacturing Technology Limited Composant longitudinal avec accumulations de masses

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US189201A (en) * 1877-04-03 Improvement in machines for rolling blanks for sucker-rod joints
US1013429A (en) * 1910-03-26 1912-01-02 Adolf Alexander Karl Nowak Rolling-mill.
US2202016A (en) * 1938-05-23 1940-05-28 Pittsburgh Forging Co Manufacture of metal articles
US2432566A (en) * 1944-09-08 1947-12-16 Nat Tube Co Tapering metal tubes
US3199327A (en) * 1961-05-17 1965-08-10 Rockwell Standard Co Machine for making single leaf springs and the like
US3338081A (en) * 1963-07-29 1967-08-29 Eumuco Ag Fur Maschb Automatic feed for forging roll sets
US3505849A (en) * 1966-10-01 1970-04-14 Schloemann Ag Roll stand for a rolling mill
US4109358A (en) * 1971-04-21 1978-08-29 Esb Ray-O-Vac Management Corporation Method for making storage battery grid from lead-tin-zinc alloy
DE2418526A1 (de) * 1973-05-10 1974-11-28 Josef Froehling Zycloidwalzwerk
DE2424587C3 (de) * 1974-05-21 1980-03-20 Eisenwerk-Gesellschaft Maximilianshuette Mbh, 8458 Sulzbach-Rosenberg Walzvorrichtung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2069883A (en) * 1980-02-26 1981-09-03 Proizv Obiedine Method for manufacturing profiled beams from slabs of rectangular cross section
FR2750351A1 (fr) * 1996-06-27 1998-01-02 Lorraine Laminage Procede et dispositif de calibrage en largeur d'un demi-produit siderurgique tel qu'une brame d'acier
DE10048312A1 (de) * 2000-09-29 2002-04-25 Benteler Werke Ag Abstreckvorrichtung
WO2003039787A1 (fr) * 2001-11-07 2003-05-15 Bishop Manufacturing Technology Limited Composant longitudinal avec accumulations de masses

Also Published As

Publication number Publication date
DE102005007712A1 (de) 2005-09-08
DE502005000611D1 (de) 2007-06-06
DE102004008800A1 (de) 2005-09-29
US20050183485A1 (en) 2005-08-25
ES2285585T3 (es) 2007-11-16
US7237417B2 (en) 2007-07-03
EP1568423B1 (fr) 2007-04-25

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