EP1762313B1 - Dispositif de deformage d'une pièce - Google Patents

Dispositif de deformage d'une pièce Download PDF

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Publication number
EP1762313B1
EP1762313B1 EP06018129A EP06018129A EP1762313B1 EP 1762313 B1 EP1762313 B1 EP 1762313B1 EP 06018129 A EP06018129 A EP 06018129A EP 06018129 A EP06018129 A EP 06018129A EP 1762313 B1 EP1762313 B1 EP 1762313B1
Authority
EP
European Patent Office
Prior art keywords
tool
drive
spindle
synchronizing
workpiece
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
EP06018129A
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German (de)
English (en)
Other versions
EP1762313A1 (fr
Inventor
Helmut Sproll
Arne Höltich
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
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Publication date
Application filed by Rollwalztechnik Abele and Holtich GmbH filed Critical Rollwalztechnik Abele and Holtich GmbH
Publication of EP1762313A1 publication Critical patent/EP1762313A1/fr
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Publication of EP1762313B1 publication Critical patent/EP1762313B1/fr
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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

Definitions

  • the invention relates to a device for machining a workpiece by means of at least two tools, which are synchronous to the workpiece to be moved via a Gleichlaufeinrichung, the one tool, a drive for this movement and the other tool is assigned a rigid connection between this and the drive.
  • a generic device is from the document DD 200 146 known, in which a tool by means of a hydraulic device to the workpiece to be machined is to be moved, which is rigidly connected via tie bar with the other tool without drive, so that when a confirmation of the hydraulic both tools can move towards each other.
  • a simple mechanical synchronizing device is furthermore provided, in which a frame-fixed pinion meshes between toothed racks on the hydraulic device and the tension clamps.
  • a generic rolling device is known in which a kind of synchronous balance is provided between the two successive movable tool slide. This synchronous balance is hinged diagonally to the tool slide, whereby tilting of these slides is possible, especially in this device, no additional rigid connection between the two tool slides is provided, which are instead moved toward each other by means of a common piston rod.
  • the object of the present invention is to substantially improve the guidance of the tools and to simplify the introduction of force for moving the tools.
  • a synchronous lever arrangement in the form of a synchronous balance serves as synchronizing device, by means of which the two tools are connected to each other in addition to the rigid connection.
  • the drive itself should be carried out in the plane of movement, preferably even axially parallel or even axially aligned with the movement of the tools.
  • the drive itself can be integrated in the same housing or in the same housing frame in which the tools are guided. This results in a much better possibility of power transmission and accuracy of machining.
  • the drive can be outside the axial direction of movement of the tools, but then connected via corresponding angle lever or angle rockers with the tools.
  • the introduction of force is worsened and the space requirement is significantly increased. Therefore, the arrangement of the drive in the axis of movement of the tools is preferred.
  • the rigid connection can be made via at least one cross member, which connects the drive with the other tool.
  • the Traverse should be of secondary importance.
  • the traverse can be plate-shaped or swinging. In a preferred embodiment, the traverse overlaps the one tool, so that this tool between the drive and the other tool is arranged.
  • a drive is preferred in which the actual feed movement is effected by a mechanical spindle drive, while the working stroke is carried out by means of a pressure medium:
  • the drive has a cylinder in which a piston moves in a pressure space. This piston is penetrated by the spindle, wherein an external thread of the spindle meshes in an internal thread of the piston.
  • the piston is guided along the spindle, when filling the pressure chamber with a pressure medium, the piston takes the spindle in the working direction.
  • Both the drive and the two tools are preferably guided on tie rods, which extend between two outer plates. This means that all three machine components have a common guide and are "floating" on the tie rods. As a result, the guide of the drive and the two tools or of housings in which the tools are mounted, simplified and improved, since an axial or axially parallel force applied to the tools.
  • This possible inaccuracy is avoided by a synchronous lever assembly which connects the two tools together.
  • This synchronizer lever assembly has a stationary pivot point about which a synchronous balance rotates, which forms a toggle lever assembly with a respective synchronizer lever, which in turn is connected to the respective tool.
  • FIG. 1 protrude from a base plate 1 opposite outer plates 13 and 14.
  • the outer plates 13 and 14 are connected to each other via tie rods, with only two tie rods 2.1 and 2.2 are shown.
  • further tie rods are located under these tie rods, so that a fourfold guide is provided.
  • a drive A and two tools W 1 and W 2 are slidably mounted.
  • said pressure roller is arranged on a roller spindle 10.1 or 10.2.
  • Each roller spindle 10.1 or 10.2 is associated with a drive 20.1 or 20.2, which directly or else, as in the EP 0 310 893 B1 shown, can be done via appropriate propeller shafts. It is also conceivable to provide only one drive, in which case the two rolling spindles 10.1 and 10.2 are connected to each other by gear technology.
  • Each tool W 1 and W 2 is located in or on a roller spindle housing 8 or 9, wherein the roller spindle housing 8 is referred to as a feed housing and the roller spindle housing 9 as a housing Holschen for distinction.
  • the roller spindle housing 8 is referred to as a feed housing and the roller spindle housing 9 as a housing Holschen for distinction.
  • Feed housing 8 of the drive A against a in FIG. 2 shown workpiece 27, which is located between the two tools W 1 and W 2 is advanced, while the other tool W 2 is pulled from the drive A in a manner to be described later way to the workpiece.
  • a synchronous balance 18 is fixedly arranged on a central plate 7, where it rotates about the central pin 19 there.
  • the synchronous balance 18 is pivotably connected via a pin 17.1 with a synchronizing lever 16.1 and the other end via a further pin 17.2 with another synchronizing lever 16.2.
  • the free ends of the synchronizing levers 16.1 and 16.2 enter into an articulated connection via a corresponding bearing pin 15.1 and 15.2 with the advancing housing 8 or the housing 9, respectively.
  • the feed housing 8 is assigned to the drive A. It has a connection with a spindle 12 and a piston 4, which is arranged in a cylinder 3.
  • the spindle 12 passes through the piston 4 and meshes with an external thread 21 an internal thread in the piston 4.
  • the piston 4 can in turn slide in the cylinder 3 in the region of a pressure chamber 23, wherein a corresponding inlet for a pressure medium with 24 and a corresponding, only dashed lines indicated outlet for the pressure medium are marked with 25.
  • the cylinder 3 is located on a cylinder plate 5, which at the other end, the piston 4 also circumferentially, a Hubbegrenzungsmutter 6 is attached.
  • the spindle 12 further passes through a bushing 11 in the outer plate 13, wherein the bushing 11 is formed as an adjusting bush and represents a hand rim, with which the spindle 12 can be rotated.
  • FIG. 2 is shown schematically, the cylinder 3 is connected via two trusses 26.1 and 26.2 rigidly connected to the Holgephaseuse 9.
  • the cross members 26.1 and 26.2 engage over the feed housing 8.
  • the tool W 2 also follows the axial movement of the drive A and is thus moved toward the workpiece 27.
  • the actual working stroke is then carried out by acting on the pressure chamber 23 behind the piston 4 through the inlet 24, wherein the movement of the piston 4 is transmitted to the spindle 12 and the spindle 12 on the feed housing 8 and the tool W 1 .
  • it is only the transmission of half of the working path, since the other half is in turn transmitted via the trusses 26.1 and 26.2 on the Holgeophuse 9. In this way, both delivery stroke and stroke are synchronized between the two tools W 1 and W 2 .
  • the synchronizer lever arrangement serves only to compensate for possible irregularities in the movement of the tools W 1 and W 2 or of the feed housing 8 and the housing 9. If, for example, these housings are subject to different frictional states on the tie rods, then frictions are compensated by the synchronizer lever arrangement.
  • the actual power transmission during delivery and during the working stroke is preferably carried out exclusively by the drive A and the spindle assembly 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Adornments (AREA)
  • Machine Tool Units (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Claims (12)

  1. Dispositif d'usinage d'une pièce (27) à l'aide d'au moins deux outils (W1, W2) déplaçables, par l'intermédiaire d'un dispositif de synchronisme, de manière synchrone le long de la pièce (27), à l'un (W1) des outils étant associé un entraînement (A) pour ce mouvement et à l'autre outil (W2) étant associée une connexion rigide entre ce dernier et l'entraînement (A), caractérisé par le fait que comme dispositif de synchronisme sert un aménagement de leviers synchrones (16.1, 16.2) sous forme de balance synchrone (18) par lequel les deux outils (W1, W2) sont, en plus de la connexion rigide, connectés entre eux au centre.
  2. Dispositif selon la revendication 1, caractérisé par le fait que la balance synchrone (18) possède un point de rotation (19) stationnaire et deux extrémités reliées, chacune, de manière articulée à un levier synchrone (16.1, 16.2), l'un (16.1) des leviers synchrones communiquant avec l'un outil (W1) et l'autre levier synchrone (16.2) communiquant avec l'autre outil (W2).
  3. Dispositif selon la revendication 2, caractérisé par le fait que le point de rotation (19) de la balance synchrone (18) se trouve à hauteur de la pièce à usiner (27).
  4. Dispositif selon l'une des revendications précédentes, caractérisé par le fait que l'entraînement (A) présente un cylindre (3) dans lequel un piston (4) est déplaçable dans une chambre à pression (23).
  5. Dispositif selon la revendication 4, caractérisé par le fait que comme connexion rigide le cylindre (3) est connecté par l'intermédiaire de deux traverses (26.1, 26.2) à l'autre outil (W2).
  6. Dispositif selon la revendication 5, caractérisé par le fait que le cylindre (3) est disposé sur une plaque de cylindre (5).
  7. Dispositif selon la revendication 6, caractérisé par le fait que la plaque de cylindre (5) et les outils (W1, W2) sont déplaçables le long de tirants (2.1, 2.2).
  8. Dispositif selon la revendication 7, caractérisé par le fait que les tirants (2.1, 2.2) s'étendent entre deux plaques extérieures (13, 14).
  9. Dispositif selon l'une des revendications 4 à 8, caractérisé par le fait que l'entraînement (A) est traversé par une broche (12) qui est connectée à l'un outil (W1).
  10. Dispositif selon la revendication 9, caractérisé par le fait que la broche (12) traverse le piston (4) avec un filet extérieur (21) qui engrène un filet intérieur (22) dans le piston (4).
  11. Dispositif selon la revendication 10, caractérisé par le fait que la broche (12) traverse une douille de réglage (11) dans l'une des plaques extérieures (13).
  12. Dispositif selon l'une des revendications précédentes, caractérisé par le fait que chaque outil (W1, W2) se trouve dans un boîtier, l'un boîtier servant de boîtier d'avance (8) et le boîtier connecté de manière rigide à l'entraînement (A) servant de boîtier de retour (9).
EP06018129A 2005-09-12 2006-08-30 Dispositif de deformage d'une pièce Active EP1762313B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005043498A DE102005043498A1 (de) 2005-09-12 2005-09-12 Vorrichtung zum Bearbeiten eines Werkstückes

Publications (2)

Publication Number Publication Date
EP1762313A1 EP1762313A1 (fr) 2007-03-14
EP1762313B1 true EP1762313B1 (fr) 2008-10-15

Family

ID=37763107

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06018129A Active EP1762313B1 (fr) 2005-09-12 2006-08-30 Dispositif de deformage d'une pièce

Country Status (3)

Country Link
EP (1) EP1762313B1 (fr)
AT (1) ATE411123T1 (fr)
DE (2) DE102005043498A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8713454U1 (de) 1987-10-07 1988-02-04 Rollwalztechnik Abele + Höltich GmbH, 7707 Engen Vorrichtung zum Walzen von Gewinden od. dgl. Profilen
EP0310893B1 (fr) 1987-10-09 1995-07-19 Asahi Glass Company Ltd. Composition de caoutchouc fluorocarboné vulcanisable
FR2676668B1 (fr) * 1991-05-23 1994-07-01 Escofier Tech Sa Dispositif et procede permettant le formage a froid de cannelures sur la paroi d'une piece de revolution.
DE4244720A1 (de) * 1992-02-13 1994-03-03 Wf Maschinenbau Blechformtech Verfahren zur Herstellung eines außen verzahnten Getriebeteiles
DE69932765T2 (de) * 1998-04-02 2007-09-13 Nissei Co. Ltd., Ohtsuki Rundbacken-Formwalzvorrichtung
US6915673B2 (en) * 2001-06-21 2005-07-12 Nissei Co., Ltd. Method of rolling worm gear and the worm gear
DE10244483B4 (de) * 2002-09-24 2006-08-31 Profiroll Technologies Gmbh Profilwalzmaschine mit Kraftrahmen zum Walzen mit außenverzahnten Rundwalzwerkzeugen

Also Published As

Publication number Publication date
ATE411123T1 (de) 2008-10-15
DE102005043498A1 (de) 2007-03-15
EP1762313A1 (fr) 2007-03-14
DE502006001810D1 (de) 2008-11-27

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