EP0310898B1 - Dispositif pour le laminage de filets ou de profilés similaires - Google Patents

Dispositif pour le laminage de filets ou de profilés similaires Download PDF

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Publication number
EP0310898B1
EP0310898B1 EP88115751A EP88115751A EP0310898B1 EP 0310898 B1 EP0310898 B1 EP 0310898B1 EP 88115751 A EP88115751 A EP 88115751A EP 88115751 A EP88115751 A EP 88115751A EP 0310898 B1 EP0310898 B1 EP 0310898B1
Authority
EP
European Patent Office
Prior art keywords
rolling
lever
rolling tools
guide
drive
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
EP88115751A
Other languages
German (de)
English (en)
Other versions
EP0310898A1 (fr
Inventor
Jürgen Abele
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.)
Rollwalztechnik Abele and Holtich GmbH
Original Assignee
Rollwalztechnik Abele and Holtich GmbH
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 Rollwalztechnik Abele and Holtich GmbH filed Critical Rollwalztechnik Abele and Holtich GmbH
Priority to AT88115751T priority Critical patent/ATE69748T1/de
Publication of EP0310898A1 publication Critical patent/EP0310898A1/fr
Application granted granted Critical
Publication of EP0310898B1 publication Critical patent/EP0310898B1/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
    • B21H3/00—Making helical bodies or bodies having parts of helical shape
    • B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
    • B21H3/04—Making by means of profiled-rolls or die rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B31/22—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal
    • B21B31/28—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal by toggle-lever mechanisms

Definitions

  • the invention relates to a device for rolling threads or the like. Profiles by means of two rolling tools rotating in the same direction, the distance between which can be changed, the rolling tools being arranged on corresponding displaceable guide carriages for synchronously changing their distance from one another.
  • Thread rolling machines with a stationary rolling tool and a second rolling tool mounted in a slide are known. This slide is then moved hydraulically or mechanically in the direction of the stationary roller, thus rolling the profile into the workpiece. However, the workpiece is laterally displaced, so that a uniform penetration of both tools into the workpiece is not ensured.
  • a device for rolling threads is also known, in which the rolling tools are arranged directly on two levers fixed in mirror image. Each lever has a pivot point which is also arranged in mirror image, so that the rolling tools also run on a circle with a corresponding radius around this pivot point when the levers are spread at the far end. A linear movement of the rolling tools is not possible, so that workpieces cannot be machined diagonally opposite one another.
  • a thread rolling machine is also known according to the preamble of claim 1, in which the rolling tools are moved towards or away from each other via two scissor levers with a common pivot point and an expanding wedge.
  • This arrangement has the disadvantage that the rolling tools perform a certain pendulum movement, so that their exact adjustment to one another cannot be maintained by the pendulum movement.
  • the inventor has set itself the goal of developing a device of the type mentioned above, by means of which the distance between two rolling tools can be adjusted completely synchronously with exact linear guidance, without the need for a later new adjustment or alignment of the rolling tools.
  • both rolling tools or their guide carriages are each connected to a lever arm and a cross member with a wing of a central lever, which can be rotated about an axis by a drive, the lever arm between a linkage to the cross member and a connection with the guide carriage has a pivot point fixed to the housing and the connection to the guide carriage is effected in that the lever arm holds a displaceable pressure plate delimited by the recess in a recess in the guide carriage via a bolt.
  • This invention ensures on the one hand that the rolling tools are guided in exactly the same axial plane, i.e. both guides or corresponding guide slides run on the same axis. How these guides or guide slides are designed is irrelevant within the scope of the invention.
  • a conceivable solution is that the slides are guided in corresponding guide troughs which are molded into the machine housing.
  • rails can also be provided in the machine housing on which the guide slides run.
  • the lever arm has a pivot point fixed to the housing between the linkage to the crossmember and its connection to the guide carriage, about which it rotates. If the crossbar presses on its articulation with the lever arm, it rotates around the pivot point and thereby moves the guide carriage along its guide.
  • the lever arm is also articulated to the guide carriage, this articulated connection must allow a certain circular movement of the lever arm. For this purpose there are corresponding limiting or pressure plates in the guide carriage.
  • the crossbar according to the invention consists of two strips which strike the central lever on both sides of a wing. They are then articulated to the wing via a central bolt. The lever arrangement is thus stabilized.
  • the wings are molded onto a sleeve, which in turn rotates in corresponding bearings fixed to the housing.
  • a rotary bolt or the like can also be used here instead of a sleeve.
  • this sleeve has the advantage that a stub shaft of a gear can engage in its axial bore, which in turn is actuated by a corresponding drive.
  • This drive can be, for example, a double-acting linear cylinder or sealing piston cylinder.
  • the central lever is the starting point of every movement of the rolling tools, so that, for example, irregularities in the drive are transmitted completely evenly to the rolling tools and their guides. Absolute synchronism is guaranteed.
  • a device R for rolling threads or the like. Profiles has a machine housing 1 in which the essential mechanical elements are separated from corresponding switching or control elements by a base plate 2. In the position of use, a cover plate 3 also covers these mechanical elements, so that the machine housing 1 is essentially closed.
  • peripheral tools 4 and 5 are provided with corresponding thread profiles, not shown.
  • the rolling tools 4 and 5 are arranged on shafts 6, which rotate about corresponding axes 7 and 8, respectively.
  • the shafts 6 rest in a bearing block 9, which is fixed to a guide carriage 10.
  • This guide carriage 10 forms a projection 11 which is penetrated by the shaft 6 and in which there are further bearing shells, not shown, for this shaft 6.
  • Corresponding connecting flanges 12 are provided on this projection 11 for an articulated shaft 13, which connects the shaft 6 to a gear part 14.
  • a separate gear part 15 is also provided for the other shaft 6 of the rolling tool 4, both gear parts 14 and 15 being connected to one another via a coupling 16.
  • the corresponding geared motor 17 is then flanged onto the gear part 15.
  • Both guide carriages 10 are guided in a guide groove 18 in the base plate 2 and in a guide channel 19 in the cover plate 3 (see FIG. 2).
  • the guide carriages 10 are adjustable in the direction x, the distance a between the two rolling tools 4 and 5 being adjustable.
  • This adjustment of the distance a between the two rolling tools 4 and 5 or the displacement of the guide carriage 10 in the direction x takes place via a lever arrangement 20.
  • the core of this lever arrangement is a central lever 21 which, as shown in particular in FIG. 3, about an axis A. turns.
  • This central lever 21 consists essentially of a sleeve 22 with an axial bore 23.
  • wings 24 are formed on both sides.
  • the sleeve 22 engages in a trough 25 in the base plate 2 and rotates there, supported by corresponding bearings 26, about a bearing pin 27.
  • the sleeve 22 partially penetrates the cover plate 3 and is supported against the edge 28 of a corresponding opening in the cover plate 3 via a further bearing 29.
  • a shaft stub 30 engages in the axial bore 23 from above, which can be rotated about the axis A by a drive 32 via a corresponding gear 31.
  • This drive 32 can be, for example, a double-acting linear cylinder.
  • the vanes 24 are penetrated by central bolts 33, which rotate in corresponding slide bearings 34. With these central bolts 33, two strips 35 and 36 of a cross member 37, which strike the wings 24 from the outside, are connected.
  • this cross member 37 has an articulated connection via a pivot pin 38 to a lever arm 39 which has a pivot point 40 fixed to the housing.
  • the lever arm 39 engages in the guide carriage 10 or a corresponding recess 41 in the guide carriage 10 and is articulated there to the guide carriage 10 via a bolt 42.
  • the narrower region of the recess 41 around the bolt 42 is formed on the one hand by a limiting plate 43 and on the other hand by a pressure plate 44.
  • a further pressure plate 45 can also be assigned to the lever arm 39 in order to absorb the pressure.
  • the operation of the present invention is as follows: In a starting position, the two rolling tools 4 and 5 are set in rotation about their axes 7 and 8 via the geared motor 17, the gear parts 14 and 15, the cardan shafts 13 and the shafts 6. This rotation runs in the opposite direction. A workpiece, for example a rod section, is then introduced into the distance a between the two rolling tools 4 and 5, and the corresponding thread profile is given via the corresponding peripheral profile of the rolling tools 4 and 5.
  • the central lever 21 is set in motion via the drive 32 and the gear 31, wherein it rotates about its axis A.
  • the present arrangement according to the invention is not only limited to the horizontal arrangement of the two rolling tools with respect to one another, but it can also function in the case of a vertical or oblique arrangement. There is no difference in the very positive effect.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Claims (7)

  1. Dispositif pour rouler des filets ou profils analogues au moyen de deux outils de taillage par génération tournant dans le même sens, dont on peut régler l'écartement, les outils de taillage étant placés sur des chariots de guidage pouvant coulisser de manière appropriée de façon à avoir une modification synchrone de leur intervalle, caractérisé en ce qu'on relie les deux outils de taillage (4, 5) ou leurs chariots de guidage (10) chacun par un bras de levier (39) et une traverse (37), avec chaque fois une aile (24) d'un levier central (21), qui peut tourner sur un axe (A) grâce à un entraînement, le bras de levier (39) présente entre une articulation (38) à la traverse (37) et une connexion au chariot de guidage (10), un centre de rotation (40) fixe par rapport au châssis, et la liaison au chariot de guidage (10) se fait en ce que le bras de levier (39) dans un évidement (41) du chariot de guidage (10) tient une plaque de pression (45) pouvant coulisser par l'intermédiaire d'un goujon (42), limitée par l'évidement (41).
  2. Dispositif selon la revendication 1, caractérisé en ce qu'on guide la plaque de pression (45) entre une plaque de limitation (43) et une autre plaque de pression (44).
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que la traverse (37) comprend deux bandes (35, 36) qui, de chaque côté d'une aile (24) viennent en butée sur le levier central (21).
  4. Dispositif selon la revendication 3, caractérisé en ce que la connexion des bandes (35, 36) avec les ailes (24) se fait par articulation par l'intermédiaire d'un goujon central (33).
  5. Dispositif selon au moins l'une des revendications 1 à 4, caractérisé en ce que les ailes (24) sont formées de chaque côté sur une gaine (22) qui tourne sur l'axe (A) dans des paliers (26, 29) correspondants solidaires du châssis.
  6. Dispositif selon au moins l'une des revendications 1 à 5, caractérisé en ce que l'entraînement (32) du levier central (21) est un cylindre linéaire à double action ou un cylindre à piston étanche.
  7. Dispositif selon la revendication 5 ou 6, caractérisé en ce que dans un perçage axial (23) de la gaine (22), un bout d'arbre (30) d'un réducteur (31) est en prise, et est relié à l'entraînement (32).
EP88115751A 1987-10-07 1988-09-24 Dispositif pour le laminage de filets ou de profilés similaires Expired - Lifetime EP0310898B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88115751T ATE69748T1 (de) 1987-10-07 1988-09-24 Vorrichtung zum walzen von gewinden od. dgl. profilen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8713454U 1987-10-07
DE8713454U DE8713454U1 (de) 1987-10-07 1987-10-07 Vorrichtung zum Walzen von Gewinden od. dgl. Profilen

Publications (2)

Publication Number Publication Date
EP0310898A1 EP0310898A1 (fr) 1989-04-12
EP0310898B1 true EP0310898B1 (fr) 1991-11-27

Family

ID=6812839

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88115751A Expired - Lifetime EP0310898B1 (fr) 1987-10-07 1988-09-24 Dispositif pour le laminage de filets ou de profilés similaires

Country Status (4)

Country Link
EP (1) EP0310898B1 (fr)
AT (1) ATE69748T1 (fr)
DE (2) DE8713454U1 (fr)
ES (1) ES2028967T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1762313A1 (fr) 2005-09-12 2007-03-14 Rollwalztechnik Abele + Höltich Gmbh Dispositif de deformage d'une pièce
DE102013107603A1 (de) 2013-07-17 2015-01-22 Rollwalztechnik Abele + Höltich GmbH Vorrichtung zum Bearbeiten eines Werkstücks

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4022197B4 (de) * 1990-07-12 2006-09-21 Rollwalztechnik Abele + Höltich GmbH Vorrichtung zum Nachwalzen von Gewinden
DE19710730B4 (de) * 1997-03-14 2004-09-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Walzverfahren und Zweiwalzen-Profilwalzmaschine zum Herstellen von Steigungsprofilen mit ungerader Gangzahl auf rotationssymmetrische Werkstücke
US6920772B1 (en) * 2003-02-12 2005-07-26 Morgan Construction Company Pinch roll unit
DE102005042901B3 (de) 2005-09-08 2007-05-24 Rollwalztechnik Abele + Höltich GmbH Verfahren und Vorrichtung zum Verformen eines Werkstücks
DE502005006852D1 (de) * 2005-10-12 2009-04-23 Sms Demag Ag Vorrichtung zum angleichen von arbeitswalzen an die walzlinie

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE149181C (fr) *
DE749699C (de) * 1941-11-18 1944-11-30 Pee Wee Maschinen Und Appbau I Vorrichtung zum kalten Oberflaechen-Presswalzen von runden Werkstuecken
DE1479229B2 (de) * 1965-10-02 1975-06-05 5201 Lohmar Vorrichtung zum Herstellen von Hohlkörpern aus thermoplastischem Kunststoff nach dem Blasverfahren
FR1489069A (fr) * 1966-04-22 1967-07-21 Spidem Ste Nle Dispositif permettant de faire varier les efforts sur les empoises de travail dans les laminoirs multicylindres
DE2523837A1 (de) * 1975-05-30 1976-12-02 Juergen Abele Walzmaschine zum profilieren von zylindrischen werkstuecken
DE3508259A1 (de) * 1985-03-08 1986-09-11 J.W. Froehlich Maschinenfabrik GmbH, 7310 Plochingen Profil- und gewindewalzmaschine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1762313A1 (fr) 2005-09-12 2007-03-14 Rollwalztechnik Abele + Höltich Gmbh Dispositif de deformage d'une pièce
DE102013107603A1 (de) 2013-07-17 2015-01-22 Rollwalztechnik Abele + Höltich GmbH Vorrichtung zum Bearbeiten eines Werkstücks
WO2015007386A1 (fr) 2013-07-17 2015-01-22 Rollwalztechnik Abele + Höltich GmbH Dispositif d'usinage d'une pièce

Also Published As

Publication number Publication date
EP0310898A1 (fr) 1989-04-12
ES2028967T3 (es) 1992-07-16
ATE69748T1 (de) 1991-12-15
DE3866499D1 (de) 1992-01-09
DE8713454U1 (de) 1988-02-04

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