EP0882532B1 - Dispositif de fluotournage et procédé pour la fabrication de pièces à denture plate - Google Patents

Dispositif de fluotournage et procédé pour la fabrication de pièces à denture plate Download PDF

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Publication number
EP0882532B1
EP0882532B1 EP98109295A EP98109295A EP0882532B1 EP 0882532 B1 EP0882532 B1 EP 0882532B1 EP 98109295 A EP98109295 A EP 98109295A EP 98109295 A EP98109295 A EP 98109295A EP 0882532 B1 EP0882532 B1 EP 0882532B1
Authority
EP
European Patent Office
Prior art keywords
workpiece
shaping tool
rollers
flow
face
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
EP98109295A
Other languages
German (de)
English (en)
Other versions
EP0882532A2 (fr
EP0882532A3 (fr
Inventor
Karl-Heinz Pütz
Willi Zimmermann
Heinz Steinhauer
Bernd Stein
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.)
DYNAFORM GMBH
Original Assignee
Dynaform 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 Dynaform GmbH filed Critical Dynaform GmbH
Publication of EP0882532A2 publication Critical patent/EP0882532A2/fr
Publication of EP0882532A3 publication Critical patent/EP0882532A3/fr
Application granted granted Critical
Publication of EP0882532B1 publication Critical patent/EP0882532B1/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
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/14—Spinning
    • B21D22/16—Spinning over shaping mandrels or formers
    • 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
    • B21D53/00—Making other particular articles
    • B21D53/26—Making other particular articles wheels or the like
    • B21D53/28—Making other particular articles wheels or the like gear wheels
    • 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

Definitions

  • the invention relates to a pressure rolling device and a method for manufacturing a face gear workpiece according to the preamble of claim 1 or 7.
  • the spur gears are usually mechanical in such workpieces or manufactured by spark induction processing.
  • the workpieces can also be produced as sintered parts, so that a mechanical Editing is not necessary.
  • These are known manufacturing processes however, it is cost-intensive and is burdened by the resulting waste products such as Oils, coolants, oily shavings in manufacturing workers and the environment.
  • WO 96/20050 describes the production of internally toothed tubular parts described with the pressure rolling process. The manufacture of spur gears However, sharing is not possible with this procedure.
  • the invention is based on the object, the production of spur gears
  • the toothing can be inside or outside the sleeve.
  • the spur toothing in the workpiece is formed using the pressure rolling technology.
  • the workpiece located on a molding tool is pressed using spinning rollers plastically cold formed.
  • the thickness of the workpiece is reduced and the area is increased by pulling out the material, which is below the Pressure of the spinning rollers fluidizing material in a tooth structure of the mold is pressed.
  • An advantage of pressure rolling it is that, due to the cold forming, the finished Workpiece has a uniform structure.
  • the molding tool is surrounded by a displaceable tube, with which the contact surface of the mold for the workpiece is enlarged can be.
  • the workpiece is withdrawn from the workpiece, so that a The edge of the workpiece protrudes beyond the molding tool.
  • This edge can now with the help of the pressure rollers on the mold, so that a Sleeve with a radially running toothed end face is created, the toothing is inside the sleeve.
  • a hollow mandrel can be attached to the toothed workpiece serves as a support for the edge to be folded. This creates a sleeve with a radial End face, the toothing on the end face outside the sleeve lies.
  • the molding tool advantageously has a centering pin for the workpiece which can also serve as an anti-rotation device for the workpiece. So will ensures that the workpiece is in rotation Spinning rolling remains exactly positioned. This increases the accuracy of the Face toothing of the workpiece.
  • the pressure rollers run relative to the mold during the pressure rolling process with the workpiece on it. Either the molding tool rotates about its longitudinal axis and the spinning rollers only move in a radial direction Direction is over the tooth structure of the mold or the mold stationary and the pressure rollers are both radial and circumferential over the Tooth structure moves.
  • the molding tool 1 is an example of one Shown mold.
  • the molding tool 1 is cylindrical and driven to rotate about its longitudinal axis 1A attached to a machine tool, not shown.
  • the molding tool 1 On the end facing away from the machine tool 2, the molding tool 1 has a negative spur toothing 3 on.
  • the front toothing 3 can also be raised be formed on the end face 2.
  • the spur toothing 3 is the shaping structure for the workpiece.
  • a centering pin 4 is in the middle on the end face 2 arranged. It is used for guidance and centering of the blank 6 or the workpiece on the mold 1.
  • the end face 2 has a tooth-like Contour 5 or roughening that the centering pin 4th surrounds and lies within the spur toothing 3. This Contour 5 serves to prevent the blank 6 from rotating or of the workpiece so that it rotates with the molding tool 1 can be connected.
  • Fig. 2 is a thrush rolling device shown.
  • the pressure rolling device 100 has also a rotatable mold 101 with a End face 102 on which a tooth structure 103 and a centering pin 104 are attached.
  • the centering pin 104 has longitudinal grooves 105 or similar roughening.
  • a blank is over the centering pin 104 on the end face 102 of the Molded 101 pushed.
  • the edge of the central Opening of the blank or workpiece 106 is complementary to the longitudinal grooves 105 of the centering pin 104 designed so that the two parts as anti-rotation mesh.
  • the tooth structure 103 of the Molding tool 101 can therefore be radial from the circumference extend to the centering pin 104.
  • the illustrated Tooth structure 103 is only in the radial direction trained in sections.
  • the axis of rotation 107A of the Press roller 107 extends at an angle ⁇ to that Rotation axis 101A of the mold 101.
  • the angle ⁇ and the peripheral surfaces of the pressure roller 107 are selected that the pressure rollers 107 before the start of the forming up can be moved to the centering pin 104 and that the pressure rollers 107 exert an axial force on the Apply workpiece 106 located on the end face 102 can.
  • the angle ⁇ is at least 10 °, preferably 45 °.
  • the molding tool rotates during the pressure rolling operation 101 and the pressure rollers 107 about their respective axes of rotation 101A and 107A.
  • the pressure rolling takes place from the inside to the outside, i.e. that the pressure rollers 107, which at Stand at the centering pin 104, be moved outwards.
  • the pinch rollers 107 are not moved exactly radially outwards, but under an angle ⁇ so that the direction of advance of the spinning rollers 107 is inclined towards the end face 102.
  • the pressure rollers 107 With increasing radial distance to the axis of rotation 101A of the Forming tool, the pressure rollers 107 are thus closer to the face 102 brought up. This ensures that the pressure rollers 107 the material of the workpiece 106 press completely into the tooth structure 103.
  • Fig. 2 In the upper half of Fig. 2 is one Spinning roller 107 approximately in the middle of the forming process shown. In the lower half of the figure is one Press roller 107 shown in the end position. After reaching this end position are the spinning rollers of the workpiece 106 moved away so that this from the mold 101 can be removed.
  • FIG. 3 A section of the workpiece 106 is shown in FIG. 3, which with the pressure rolling device shown in Fig. 2 101 was manufactured.
  • the workpiece 106 is ring-shaped, with spur teeth 108 an end face 109 of the workpiece 106 applied is.
  • FIG 4 another example is one Spinning roller device shown.
  • the pressure rolling device 200 likewise has a molding tool 201 with a end tooth structure 203 and a centering pin 204 on.
  • the centering pin 204 has a smooth one Lateral surface.
  • the workpiece 206 is in the form of a sleeve with a front outer flange.
  • the diameter of the Sleeve is dimensioned so that it is on the centering pin 4 can be pushed so that the flange abuts the end face 202 of the molding tool 201.
  • a tailstock-side holding mandrel 205 is placed on the centering pin 204 pushed onto the workpiece 206 hits and this against the molding tool 201 presses, so that mold 201 and workpiece 206 one enter into a non-rotatable connection.
  • longitudinal grooves in the centering pin 204 or a further toothing not in the end face 202 of the molding tool 201 required.
  • the workpiece 206 is reshaped as well as in the second exemplary embodiment shown in FIG.
  • the workpiece 206 is shown, which with the Press rolling device 200 shown in Figure 4 manufactured has been.
  • the workpiece 206 has the shape of a sleeve 210, on one end a radially extending one Flange 209 is arranged.
  • a spur toothing 208 On the sleeve 210 facing away End face of the flange 209 is located a spur toothing 208.
  • a first embodiment of the invention is in Figure 6 shown.
  • the mold 101 corresponds the mold of the second example like it is shown in Figure 2.
  • the mold 101 is from surrounded by a slidable tube 312. Before the start of the Tube 312 is positioned such that that its face 313 is flush with the face 102 of the mold 101 completes, so that the bearing surface for the workpiece 306 is enlarged.
  • the pressure rolling process is not on the circumference of the mold 101 canceled, but only on the outer Scope of the tube 312. Since the material of the workpiece 306 is spread over a larger area, the falls Wall thickness of the finished workpiece 306 accordingly thinner. Therefore, a larger starting wall thickness selected for the workpiece 102.
  • the tube 312 is withdrawn, so that an edge 311 (see upper half 8) over the circumference of the molding tool 101 survives. With the help of the pressure rollers 107 the protruding Edge 311 on the peripheral surface of the mold 101 flipped.
  • the pipe 312 can also be used in the molding tool 101 then the workpiece 306 from the mold 101 strips.
  • the finished workpiece 306 is shown in FIG.
  • the folded over projecting edge 311 now forms a sleeve 310, one end of which is a radially extending surface 309 is located.
  • On the the The end face 309 has the side facing sleeve 310 a toothing 308 applied by the pressure rolling on.
  • FIG 8 is a second embodiment of the invention shown.
  • the pressure rolling device 400 corresponds essentially the pressure rolling device 300, as shown in Figure 6. Except for killing of the projecting edge 411 of the workpiece 406 (lower half of Fig. 8) are those to be traversed Manufacturing steps identical.
  • a tailstock side becomes Mandrel 412 moved against workpiece 406.
  • the protruding rollers 107 the projecting edge 411 of the Workpiece 406 detected and on the peripheral surface of the tailstock mandrel 412 flipped. In this way the workpiece 406 shown in FIG. 9 is produced.
  • the folded edge 411 forms a sleeve 410, on the end face there is a radially extending circular ring End face 409 connects.
  • On the The face 410 facing away from the sleeve 410 has the end face 409 a spur toothing 408 formed by the pressure rolling on.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Claims (9)

  1. Dispositif de fluotournage (100 ; 200 ; 300) pour la fabrication d'une pièce oeuvrée à denture frontale (106 ; 206 ; 306 ; 406), comportant un outil de formage (1 ; 101 ; 201) présentant une structure à denture frontale (3 ; 103) et au moins deux rouleaux presseurs (107) qui pressent dans la structure à dents et qui tournent par rapport à l'outil de formage (1 ; 101 ; 201), caractérisé en ce que pour agrandir la surface d'appui pour la pièce oeuvrée (306 ; 406), l'outil de formage (101) est entouré d'un tube (312) déplaçable qui peut être retiré après avoir terminé le formage de la denture (308 ; 408) de sorte que le bord (311 ; 411) dépassant de la pièce oeuvrée (306 ; 406) peut être rabattu.
  2. Dispositif de fluotournage selon la revendication 1, caractérisé en ce que l'outil de formage (1 ; 101 ; 201) est de forme cylindrique et présente sur la face frontale (2 ; 102 ; 202) un tourillon de centrage (4 ; 104 ; 204) agencé au milieu sur lequel on peut enficher une ébauche (6).
  3. Dispositif de fluotournage selon la revendication 2, caractérisé en ce que le tourillon de centrage (104) et l'ébauche (6) ou la pièce oeuvrée (106 ; 306 ; 406), respectivement, présentent des contours (105) s'engageant les uns dans les autres pour former une sécurité anti-rotation.
  4. Dispositif de fluotournage selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'outil de formage (1) présente, dans la région d'application des rouleaux presseurs (10), une structure de retenue (5) assurant la pièce à l'encontre d'une rotation.
  5. Dispositif de fluotournage selon l'une quelconque des revendications 1 à 4, caractérisé en ce que les axes (107A) des rouleaux presseurs (107) s'étendent sous un angle a >10° par rapport à l'axe (1A ; 101A ; 201A) de l'outil de formage (1 ; 101 ; 201).
  6. Dispositif de fluotournage selon l'une quelconque des revendications 1 à 5, caractérisé par un mandrin creux (412) qui, après avoir terminé le formage de la denture (408), peut être appliqué sur la pièce oeuvrée (406) se trouvant contre l'outil de formage (101) de sorte que le bord (411) de la pièce oeuvrée (406) peut être rabattu vers le mandrin creux (412).
  7. Procédé de fabrication d'une pièce oeuvrée à denture frontale (106 ; 206 ; 306 ; 406) comportant un outil de formage (1 ; 101 ; 201) qui présente sur sa face frontale (2 ; 102 ; 202) une structure à denture (3 ; 103) et au moins deux rouleaux presseurs (107) qui tournent par rapport à l'outil de formage (1 ; 101; 201), comportant les étapes suivantes :
    les rouleaux presseurs (107) sont pressés sur la région radialement intérieure de la face frontale de la pièce oeuvrée (106 ; 206 ; 306 ; 406) appliquée sur la structure à denture (303 ; 203),
    les rouleaux presseurs (107) sont déplacés sur la structure à denture (3 ; 103 ; 203), la pièce oeuvrée (106 ; 206 ; 306 ; 406) étant laminée dans la structure à denture (3 ; 103 ; 203) de telle sorte qu'il se produit sur la face frontale de la pièce oeuvrée (106 ; 206 ; 306 ; 406) une denture (108 ; 208 ; 308 ; 408) correspondante,
    caractérisé par les étapes suivantes :
    on utilise un tube (312) entourant l'outil de formage (101), lequel tube agrandit la surface d'appui pour la pièce oeuvrée (306 ; 406),
    on retire le tube (312) après avoir terminé le formage de la denture (308 ; 408), et
    on rabat le bord (311 ; 411) dépassant de la pièce oeuvrée (306 ; 406).
  8. Procédé selon la revendication 7, caractérisé en ce que le bord (311 ; 411) dépassant de la pièce oeuvrée (306 ; 406) est rabattu sur la surface enveloppe de l'outil de formage (101).
  9. Procédé selon la revendication 7, caractérisé en ce que :
    un mandrin creux (412) est rapporté sur la pièce oeuvrée (406), et
    le bord (411) dépassant de la pièce oeuvrée (406) est rabattu sur la surface enveloppe du mandrin creux (412).
EP98109295A 1997-06-03 1998-05-22 Dispositif de fluotournage et procédé pour la fabrication de pièces à denture plate Expired - Lifetime EP0882532B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19723198 1997-06-03
DE19723198A DE19723198A1 (de) 1997-06-03 1997-06-03 Drückwalzvorrichtung und Verfahren zur Herstellung eines stirnverzahnten Werkstückes

Publications (3)

Publication Number Publication Date
EP0882532A2 EP0882532A2 (fr) 1998-12-09
EP0882532A3 EP0882532A3 (fr) 1999-03-17
EP0882532B1 true EP0882532B1 (fr) 2002-05-08

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EP98109295A Expired - Lifetime EP0882532B1 (fr) 1997-06-03 1998-05-22 Dispositif de fluotournage et procédé pour la fabrication de pièces à denture plate

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EP (1) EP0882532B1 (fr)
DE (2) DE19723198A1 (fr)

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DE19810265A1 (de) * 1998-03-10 1999-09-16 Dynamit Nobel Ag Verfahren zur Herstellung einer metallischen Zylinderlaufbuchse
DE19850740A1 (de) * 1998-09-09 2000-03-23 Wf Maschinenbau Blechformtech Verfahren zur Herstellung eines Getriebeteiles im Drückverfahren
DE10252089A1 (de) 2002-11-08 2004-05-27 Tesa Ag Klebemasse und Verwendung derselben für einen Haftklebfolienstreifen aus mindestens einer Schicht, der sich durch dehnendes Verstrecken im wesentlichen in der Verklebungsebene rückstands- und zerstörungsfrei wieder ablösen lässt
DE102008021740A1 (de) 2008-04-30 2009-11-05 Tesa Se Klebemasse aus Ethylenpolymer und Verwendung derselben für einen Haftklebfolienstreifen der sich durch dehnendes Verstrecken im Wesentlichen in der Verklebungsebene rückstands- und zerstörungsfrei wieder ablösen lässt
DE202013012788U1 (de) 2012-12-19 2019-08-29 Tesa Se Wiederablösbarer Haftklebestreifen
DE102012223670A1 (de) 2012-12-19 2014-06-26 Tesa Se Wiederablösbarer Haftklebestreifen
DE102014208263A1 (de) 2014-04-30 2015-11-05 Tesa Se Ablösehilfe für eine wiederablösbare Klebefolie
DE102014208264A1 (de) 2014-04-30 2015-11-05 Tesa Se Hilfsklebeband für eine wiederablösbare Klebefolie
CN104624898B (zh) * 2014-12-15 2016-06-22 西安理工大学 一种通用单主轴立式高速冷滚打机床
DE202015009730U1 (de) 2015-04-02 2019-09-06 Tesa Se Wiederablösbarer Haftklebestreifen
EP3075772B1 (fr) 2015-04-02 2020-08-26 tesa SE Bande adhésive amovible
DE102015206076A1 (de) 2015-04-02 2016-10-06 Tesa Se Wiederablösbarer Haftklebestreifen
DE202015009721U1 (de) 2015-04-02 2019-08-23 Tesa Se Wiederablösbarer Haftklebestreifen
DE202015009724U1 (de) 2015-04-02 2019-08-16 Tesa Se Wiederablösbarer Haftklebestreifen
DE102016223852A1 (de) 2016-11-30 2018-05-30 Tesa Se Wiederablösbarer Haftklebestreifen
DE102017203092A1 (de) 2017-02-24 2018-08-30 Tesa Se Wiederablösbarer Haftklebestreifen
DE102017206083A1 (de) 2017-04-10 2018-10-11 Tesa Se Verklebung in elektrochemischen Zellen und Stapeln von elektrochemischen Zellen
DE102017220998A1 (de) 2017-11-23 2019-05-23 Tesa Se Wiederablösbarer Haftklebestreifen
DE102019204344A1 (de) 2019-03-28 2020-10-01 Tesa Se Wiederablösbarer Haftklebestreifen

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Also Published As

Publication number Publication date
DE59804018D1 (de) 2002-06-13
DE19723198A1 (de) 1998-12-10
EP0882532A2 (fr) 1998-12-09
EP0882532A3 (fr) 1999-03-17

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