EP0688617B1 - Procédé et dispositif pour laminer des pièces creuses - Google Patents

Procédé et dispositif pour laminer des pièces creuses Download PDF

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Publication number
EP0688617B1
EP0688617B1 EP94109860A EP94109860A EP0688617B1 EP 0688617 B1 EP0688617 B1 EP 0688617B1 EP 94109860 A EP94109860 A EP 94109860A EP 94109860 A EP94109860 A EP 94109860A EP 0688617 B1 EP0688617 B1 EP 0688617B1
Authority
EP
European Patent Office
Prior art keywords
workpiece
rolling
impact
roller
longitudinal axis
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.)
Expired - Lifetime
Application number
EP94109860A
Other languages
German (de)
English (en)
Other versions
EP0688617A1 (fr
Inventor
Hans Krapfenbauer
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.)
Ernst Grob AG
Original Assignee
Ernst Grob 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 Ernst Grob AG filed Critical Ernst Grob AG
Priority to ES94109860T priority Critical patent/ES2105428T3/es
Priority to EP94109860A priority patent/EP0688617B1/fr
Priority to DE59403464T priority patent/DE59403464D1/de
Priority to AT94109860T priority patent/ATE155717T1/de
Priority to JP15812395A priority patent/JP3606949B2/ja
Publication of EP0688617A1 publication Critical patent/EP0688617A1/fr
Priority to US08/769,847 priority patent/US5765419A/en
Application granted granted Critical
Publication of EP0688617B1 publication Critical patent/EP0688617B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B21H5/00—Making gear wheels, racks, spline shafts or worms
    • B21H5/02—Making gear wheels, racks, spline shafts or worms with cylindrical outline, e.g. by means of die rolls
    • B21H5/025—Internally geared wheels
    • 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
    • B21D15/00—Corrugating tubes
    • B21D15/02—Corrugating tubes longitudinally
    • 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
    • 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
    • B21H3/00—Making helical bodies or bodies having parts of helical shape
    • B21H3/08—Making helical bodies or bodies having parts of helical shape internal screw-threads

Definitions

  • the present invention relates to a method for impact rolling of full or hollow cylindrical workpieces, which receive a feed along their longitudinal axis, with at least one impact roller mounted drivably in a rotating roller head being carried out in abrupt individual rolling processes on predetermined zones of the workpiece in a sequence coordinated with the workpiece feed and an apparatus for performing this method.
  • pressure rolling is known (example DE 4218092), in which, in contrast to pure pressing, the wall thickness of the workpiece is reduced in a predetermined manner at the same time as the shape is changed.
  • the pressing and rolling are effected by a roller, which is pressed onto the workpiece and causes the forming.
  • the roller is constantly in contact with the workpiece. Because the contact pressure of the roller is practically static on the workpiece, very large forces are required, which leads to correspondingly heavy-dimensioned machines of very complex construction if the workpieces produced with them are to meet the requirements.
  • the object of the present invention was to find a method analogous to the rough method described, which is also suitable for workpieces with a circumferential, protruding shoulder or gradations.
  • the method can be applied to rotationally symmetrical workpieces in that the workpiece is preferably rotated about its longitudinal axis.
  • a system according to claims 9 to 10 is preferably used to carry out the method according to the invention.
  • the claimed method is particularly suitable for hollow bodies with at least partial internal teeth. However, it is also conceivable to use the method for solid bodies or hollow bodies without internal teeth.
  • FIG. 1 the longitudinal and cross-section of a conventional impact rolling machine in the area of the actual rolling process is shown schematically.
  • a cylindrical workpiece 1 here for example a hollow cylinder, is fed to the area of the roller heads 2 and 3 by means of a device, not shown.
  • the 2 on the roller heads. 3 attached impact rollers 4 and 5 perform abrupt single rolling operations on the surface of the workpiece 1 during the rotation of the roller heads 2 and 3.
  • the material of the workpiece 1 is cold-formed, for example the inside of the workpiece 1 thereby receives the contour of an internal die 6.
  • internal toothing of hollow bodies can be produced quickly and with great precision.
  • the method can also be used for reducing the cross section of the workpiece 1, the material flowing primarily in the longitudinal direction.
  • the corresponding devices are the axes 2 'respectively. 3 'of the rolling heads 2, 3 are arranged substantially perpendicular to the longitudinal axis 1' of the workpiece. This is intended to achieve an impact effect which is essentially parallel to the longitudinal axis 1 'of the workpiece.
  • the workpiece 1 can only be fed in the direction of arrow V until the shoulder 1 '' in the areas 7 and 8 of the rotating beater rollers 4 and 4 respectively. 5 arrives.
  • the axes 2 ′ and 3 ′ of the roller heads 2 and 3 are arranged parallel to the longitudinal axis 1 ′ of the workpiece, as can be seen in FIG. 2.
  • both diametrically opposed roller heads 2 and 3 are now driven in the same direction of rotation n 1 and n 2 .
  • this results in a uniform load on the workpiece longitudinal axis 1 'by the parallel components of the oppositely directed force or. Cancel stroke vectors S 1 and S 2 and only the resulting torque has to be absorbed by workpiece 1.
  • the drive of the two roller heads 2 and 3 is simplified, which must be coupled synchronously with one another so that the opposing impact rollers 4 and 5 are used on the workpiece 1 at the same time. This can now be done using a simple toothed belt, for example.
  • the method according to the invention is suitable for all fields of application known for impact rolling.
  • it is advantageous for the production of internal gears for hollow parts.
  • the roller head speed is preferably coordinated with the feed of the workpiece in such a way that only the impact rolling processes necessary for achieving the internal toothing are applied to the inner surface of the workpiece.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Metal Rolling (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Heat Treatment Of Steel (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Laminated Bodies (AREA)

Claims (10)

  1. Procédé de laminage par choc de pièces (1), cylindriques pleines ou creuses, recevant une avance suivant son axe longitudinal (1'),
    au moins un galet de frappe (4, 5) monté en rotation dans
    au moins une tête de laminage (2, 3) rotative, effectue des opérations de laminage séparées, par impact, suivant une succession définie par l'avance de la pièce sur des zones prédéterminées de la pièce (1),
    caractérisé en ce que
    les opérations séparées de laminage sont effectuées dans la direction transversale (S1, S2) de la pièce (1).
  2. Procédé selon la revendication 1,
    caractérisé en ce que
    les zones dans lesquelles on effectue les opérations de laminage séparées se chevauchent partiellement.
  3. Procédé selon la revendication 1 ou 2,
    caractérisé en ce que
    plusieurs opérations de laminage sont effectuées simultanément à la périphérie de la pièce (1), les endroits des opérations de laminage sur la pièce (1) étant choisis pour réaliser l'équilibre des forces de laminage.
  4. Procédé selon l'une des revendications 1 à 3,
    caractérisé en ce qu'
    on effectue chaque fois simultanément au moins deux opérations de laminage en des endroits diamétralement opposés de la pièce (1).
  5. Procédé selon l'une des revendications 1 à 4,
    caractérisé en ce que
    toutes les têtes de laminage (2, 3) tournent dans le même sens de rotation de façon que les vecteurs d'impact (S1, S2) des galets à la surface de la pièce à usiner présentent le même sens de rotation par rapport à l'axe longitudinal (1) de la pièce.
  6. Procédé selon l'une des revendications 1 à 5,
    caractérisé en ce que
    la vitesse de rotation de laminage est accordée d'une certaine manière sur l'avance de la pièce.
  7. Procédé selon l'une des revendications 1 à 6,
    caractérisé en ce que
    pendant l'opération de laminage, la pièce (1) tourne autour de son axe longitudinal (1'), de préférence suivant un rapport déterminé en fonction de la vitesse de rotation des têtes de laminage.
  8. Procédé selon l'une des revendications 1 à 7, appliqué à une pièce creuse (1),
    caractérisé en ce que
    sur le côté intérieur de la pièce (1), il est prévu une matrice (6) et par les opérations de laminage, on réalise, sur la face intérieure de la pièce (1), la forme de la matrice de préférence une denture par déformation à froid.
  9. Dispositif pour la mise en oeuvre du procédé selon l'une des revendications 1 à 8,
    caractérisé en ce qu'
    il comporte au moins une tête de laminage (2, 3) avec des galets de frappe (4, 5) répartis sur une trajectoire périphérique et dont les axes de rotation (2', 3') sont principalement parallèles à l'axe longitudinal (1') de la pièce.
  10. Dispositif selon la revendication 9,
    caractérisé par
    deux ou plusieurs têtes de laminage (2, 3) dont la disposition réalise un équilibre des forces par rapport aux forces de laminage (S1, S2) exercées sur la pièce (1).
EP94109860A 1994-06-25 1994-06-25 Procédé et dispositif pour laminer des pièces creuses Expired - Lifetime EP0688617B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
ES94109860T ES2105428T3 (es) 1994-06-25 1994-06-25 Procedimiento y dispositivo para laminar piezas huecas.
EP94109860A EP0688617B1 (fr) 1994-06-25 1994-06-25 Procédé et dispositif pour laminer des pièces creuses
DE59403464T DE59403464D1 (de) 1994-06-25 1994-06-25 Verfahren und Vorrichtung zum Walzen von Hohlteilen
AT94109860T ATE155717T1 (de) 1994-06-25 1994-06-25 Verfahren und vorrichtung zum walzen von hohlteilen
JP15812395A JP3606949B2 (ja) 1994-06-25 1995-06-23 内実又は中空部材を圧延する方法及び装置
US08/769,847 US5765419A (en) 1994-06-25 1996-12-19 Method and apparatus for a rolling of hollow articles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP94109860A EP0688617B1 (fr) 1994-06-25 1994-06-25 Procédé et dispositif pour laminer des pièces creuses

Publications (2)

Publication Number Publication Date
EP0688617A1 EP0688617A1 (fr) 1995-12-27
EP0688617B1 true EP0688617B1 (fr) 1997-07-23

Family

ID=8216052

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94109860A Expired - Lifetime EP0688617B1 (fr) 1994-06-25 1994-06-25 Procédé et dispositif pour laminer des pièces creuses

Country Status (5)

Country Link
EP (1) EP0688617B1 (fr)
JP (1) JP3606949B2 (fr)
AT (1) ATE155717T1 (fr)
DE (1) DE59403464D1 (fr)
ES (1) ES2105428T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013159241A1 (fr) 2012-04-25 2013-10-31 Ernst Grob Ag Dispositif et procédé de fabrication de couronnes à parois épaisses pourvues d'une denture intérieure de roue de roulement
WO2019158656A1 (fr) 2018-02-16 2019-08-22 Ernst Grob Ag Couronnes à parois minces comportant une denture intérieure et une denture extérieure, ainsi que dispositif et procédé de production correspondants

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2193316T3 (es) * 1997-11-24 2003-11-01 Grob Ernst Fa Procedimiento y dispositivo para la formacion en frio de piezas huecas.
MXPA06008340A (es) 2004-02-06 2007-04-17 Grob Ernst Fa Dispositivo y metodo para producir secciones perfiladas dentadas en piezas de trabajo.
DE102005028828B3 (de) * 2005-06-15 2006-12-21 Getrag Synchrontechnik Gmbh Verfahren und Vorrichtung zum Herstellen von Metallringen
CH718706A1 (de) * 2021-06-04 2022-12-15 Grob Ernst Fa Vorrichtung und Verfahren zum kaltumformenden Profilieren von Werkstücken.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR468918A (fr) * 1913-05-06 1914-07-20 Emile Coulon Procédé et appareil permettant de fabriquer au tour des tubes ou tuyaux renforcés à leurs extrémités
JPS56117827A (en) * 1980-02-19 1981-09-16 Hitachi Cable Ltd Working device for internally grooved metallic pipe
GB2121326B (en) * 1982-05-22 1985-07-31 Cam Gears Ltd Valve sleeves
CH658006A5 (de) * 1983-03-07 1986-10-15 Grob Ernst Fa Verfahren und vorrichtung zum kalibrierenden reduzieren der querschnittsflaeche eines dabei rotierenden werkstueckes.
JPS63149034A (ja) * 1986-12-15 1988-06-21 Hitachi Ltd インターナルギヤの製造方法
DE4218092C1 (en) * 1992-05-07 1993-06-24 Wf-Maschinenbau Und Blechformtechnik Gmbh & Co Kg, 4415 Sendenhorst, De Mfg. gear part - involves using circular cylindrical part with inner toothing only on part of its length, non-toothed part being for seals

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013159241A1 (fr) 2012-04-25 2013-10-31 Ernst Grob Ag Dispositif et procédé de fabrication de couronnes à parois épaisses pourvues d'une denture intérieure de roue de roulement
WO2019158656A1 (fr) 2018-02-16 2019-08-22 Ernst Grob Ag Couronnes à parois minces comportant une denture intérieure et une denture extérieure, ainsi que dispositif et procédé de production correspondants

Also Published As

Publication number Publication date
ES2105428T3 (es) 1997-10-16
DE59403464D1 (de) 1997-09-04
JPH0847738A (ja) 1996-02-20
JP3606949B2 (ja) 2005-01-05
ATE155717T1 (de) 1997-08-15
EP0688617A1 (fr) 1995-12-27

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