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EP0800425B1 - Procede de fabrication de pieces a denture interieure - Google Patents

Procede de fabrication de pieces a denture interieure Download PDF

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Publication number
EP0800425B1
EP0800425B1 EP95942196A EP95942196A EP0800425B1 EP 0800425 B1 EP0800425 B1 EP 0800425B1 EP 95942196 A EP95942196 A EP 95942196A EP 95942196 A EP95942196 A EP 95942196A EP 0800425 B1 EP0800425 B1 EP 0800425B1
Authority
EP
European Patent Office
Prior art keywords
workpiece
mandrel
pressing
flow turning
shaping tool
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
EP95942196A
Other languages
German (de)
English (en)
Other versions
EP0800425A1 (fr
Inventor
Willi Zimmermann
Bernd Stein
Jürgen Zimmermann
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.)
Dynamit Nobel AG
Dynamit Nobel GmbH Explosivstoff und Systemtechnik
Original Assignee
Dynamit Nobel AG
Dynamit Nobel GmbH Explosivstoff und Systemtechnik
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 Dynamit Nobel AG, Dynamit Nobel GmbH Explosivstoff und Systemtechnik filed Critical Dynamit Nobel AG
Publication of EP0800425A1 publication Critical patent/EP0800425A1/fr
Application granted granted Critical
Publication of EP0800425B1 publication Critical patent/EP0800425B1/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
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H7/00—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons
    • B21H7/18—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons grooved pins; Rolling grooves, e.g. oil grooves, in articles
    • B21H7/187—Rolling helical or rectilinear grooves

Definitions

  • the invention relates to a method for producing internally toothed parts according to the preamble of claim 1.
  • DE-A1 24 20 014 describes a generic cylindrical ironing process described in which a tubular workpiece is a rotating extrusion process is subjected. There occurs a plastic deformation or a punctiform one Dough of the material. This procedure differs Basically from rolling, hammering or deep drawing, as this involves strain hardening of the material occurs.
  • the workpiece is on a rotatably driven mandrel, one or more spinning rollers from the outside lay against the workpiece during a longitudinal movement. Between the mandrel or a forming tool and the spinning roller or spinning rollers finds one Flow deformation of the metal takes place, reducing the wall thickness of the workpiece and its length is increased.
  • the invention has for its object a method according to the preamble of To improve claim 1 overall so much that series production is guaranteed is.
  • the forming tool according to the invention consists of chrome and molybdenum-containing materials (e.g. according to DIN 1.2343; 1.2344; 1.2606) and is tempered and surface hardened. It will then preferably still be polished. These measures make the forming tool extremely durable and for suitable for continuous use.
  • the distance of the forming tool from the holder of the mandrel is advantageously greater than or equal to 200 mm, preferably 500 mm. That measure is of course depending on the stability and size of the machine. In any Case must be ensured that the forming tool has a certain deflection can perform.
  • the pressure rollers are preferably made of HSS steel or hard metal.
  • the entry angle of the spinning roller or spinning rollers is in preferred embodiment between 5-45 °, the outlet angle between 0-20 ° and the outer roller radius between 0.5-25 mm.
  • Another feature of the invention provides that the workpiece as pre-turned or forged pot-shaped raw part on the Forming tool is pushed on. As a result, the workpiece is on the Forming tool firmly anchored.
  • the pressure rollers can better grip the workpiece advantageously a constriction on the outer end face of the workpiece provided whose depth is 0.2-0.6 x S, where S is the thickness of the wall of the Workpiece.
  • the constriction expediently extends over an angle ⁇ of a maximum of 45 ° into the outer peripheral surface of the workpiece.
  • the ironing press can also be carried out in the Counter-rotation pressing processes are carried out.
  • a tailstock guided in the machine and mandrel Forming tool and tailstock form one unit.
  • the workpiece is here as Pot-shaped blank clamped between the forming tool and mandrel.
  • the double-sided pot-shaped workpiece advantageously has a blank constriction on one side towards the middle, at an angle of a maximum of 20 ° into the outer peripheral surface of the workpiece and one Depth of 0.2-0.6 x S, where S is the thickness of the wall of the workpiece.
  • FIG. 1 schematically shows a part of a pressing mandrel 10 which consists of a mandrel 1 with a forming tool 2 attached to the end side. Not Shown is the holding of the mandrel 10 in a machine.
  • the Forming tool 2 is on an end extension 11 of the mandrel 1 non-rotatably attached.
  • FIG. 5 shows an embodiment of such a forming tool 2 in section.
  • the forming tool 2 On the surface of the forming tool 2 are longitudinal teeth, grooves or grooves arranged, the negative of a toothing to be produced represent.
  • a cup-shaped workpiece 4 is pushed onto the forming tool 2 (see Fig. 1).
  • Pressure rollers 3 engage the workpiece 4 from the outside by the force of the pressure rollers 3, a flow deformation of the metal Workpiece 4 takes place.
  • the wall thickness is reduced and the length enlarged at the same time.
  • the synchronous pressing method is shown here.
  • the distance of the forming tool 2 is not shown holding the mandrel 10 selected in the machine so large that the forming tool 2 has a certain deflection ⁇ to the machine axis 5 can perform. This allows the forming tool 2 between the Center the pressure rollers 3 yourself.
  • the distance of the forming tool 2 from the For this reason, the holder should be greater than or equal to 200 mm, preferably 500 mm be. So that the forming tool 2 is more durable, it is according to the invention Chromium and molybdenum-containing materials manufactured and tempered as well surface hardened.
  • Fig. 2 shows an embodiment of a mandrel 10 with a helical forming tool 2 and a workpiece 4 placed thereon, which is just pressed onto the forming tool 2 by a pressure roller 3.
  • this is particularly important Forming tool 2 due to the axially flowing material to break the teeth claimed.
  • the forming parameters such as feed the pressure rollers, degree of reduction, roller geometry and speed of the machine the tendency of the material to twist during forming can be used. As a result, the forming tool 2 is relieved and thus a longer one Service life reached.
  • the forming of the material in the ironing process creates one strong solidification of the material. This solidification can be caused by corresponding choice of the degree of deformation and the tool geometry is influenced become. This is a subsequent remuneration and hardening of internally toothed parts unnecessary.
  • the work hardening as well as a possible Surface hardening by known nitriding processes ensure that desired hardness and wear resistance of the parts.
  • Fig. 3 shows the ironing press in the counter-current process.
  • a tailstock 9 guided in the machine is arranged on the forming tool 2, whereby mandrel 1, forming tool 2 and tailstock 9 form a unit.
  • the Workpiece 4 is a pot-shaped blank between the forming tool 2 and mandrel 1 or a holding element 12 clamped.
  • the spinning roller or spinning rollers 3 grip the end of the workpiece 4 facing the tailstock 9 on the latter and move from there towards mandrel 1.
  • Fig. 4 shows the production of an internally toothed part with a double-sided Gearing, being a combination of the synchronous pressing method and the counter-rotation pressing method is used.
  • a tailstock 9 and a mandrel 1 two forming tools 2a, 2b are arranged here, wherein there is a double-sided pot-shaped between the forming tools 2a, 2b Workpiece 4 'is located.
  • the ironing press in the synchronous pressing process is done by a pressure roller 3b, which runs from the center of the workpiece 4 'in the direction of the mandrel 1 is moved.
  • the counter-rotating pressing process is done by a tailstock 9 adjacent spinning roller 3a, the end of the workpiece 4 'towards the center is moved.
  • Fig. 6 shows in section a pressure roller 3.
  • the pressure rollers 3 advantageously made of HSS steel or a hard metal.
  • the Inlet angle ⁇ of the pressure roller 3 is advantageously between 5-45 ° Exit angle ⁇ between 0-20 ° and the outer roller radius r between 0.5-25 mm.
  • the roll thickness B is advantageously between 60 and 260 mm the roll width D between 20 to 90 mm.
  • the workpiece 4, 4 ' is advantageously turned as a pre-turned one or forged raw part pushed onto the forming tool 2.
  • Fig. 7 is a workpiece 4 for use advantageously for the Synchronous pressing method shown.
  • Fig. 1 shows a corresponding arrangement.
  • the constriction 7 goes over one Angle ⁇ of a maximum of 45 ° in the outer peripheral surface of the workpiece 4. This constriction 7 enables the pressure rollers 3 to be better gripped.
  • FIG. 8 shows a section of a double-pot-shaped workpiece 4 'as a blank.
  • This workpiece 4 ' is used in the device described in FIG. 4.
  • the workpiece 4 ' has a constriction directed towards the center on one side 7 ', which is at an angle ⁇ of maximum 20 ° in the outer peripheral surface 8 of the Workpiece 4 'merges and has a depth a of 0.2-0.6 x S, where S is the Thickness of the wall of the workpiece 4 'is as a blank.
  • This constriction 7 'is for the better engagement of the pressure roller 3b is provided in FIG. 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Forging (AREA)
  • Organic Insulating Materials (AREA)

Claims (10)

  1. Procédé de fluotournage pour la fabrication de pièces pourvues d'une denture intérieure avec un ensemble mandrin (10) comprenant un mandrin (1) avec un outil de formage (2) placé sur celui-ci et une ou plusieurs molettes (3), une pièce (4) déformée plastiquement par la force appliquée par les molette (3) étant disposée entre l'outil de formage (2) ou l'ensemble mandrin (10) et les molettes (3), caractérisé par le fait que la distance entre l'outil de formage (2) et la fixation de l'ensemble mandrin (10) dans la machine est telle que l'outil de formage (2) se centre automatiquement par déplacement de l'ensemble mandrin (10) sous la pression des molettes (3) qui agissent de manière uniforme sur le pourtour et par le fait que l'outil de formage (2) est en un matériau à base de chrome et de molybdène et est traité et trempé superficiellement.
  2. Procédé de fluotournage selon la revendication 1, caractérisé par le fait que la distance entre l'outil de formage (2) et la fixation de l'ensemble mandrin (10) est supérieure ou égale à 200 mm, de préférence est de 500 mm.
  3. Procédé de fluotournage selon la revendication 1, caractérisé par le fait que les molettes (3) sont réalisées en acier rapide ou en métal dur.
  4. Procédé de fluotournage selon une des revendications 1 ou 2, caractérisé par le fait que l'angle d'attaque (β) de la molette ou des molettes (3) se situe entre 5-45°, l'angle de dépouille () entre 0-20° et le rayon extérieur de molette (r) entre 0,5-25 mm.
  5. Procédé de fluotournage selon une des revendications 1 à 4, caractérisé par le fait que l'on enfile sur l'outil de formage (2) la pièce (4) en tant que pièce brute en forme de godet ébauchée au tour ou à la presse.
  6. Procédé de fluotournage selon la revendication 5, caractérisé par le fait qu'il est prévu, sur la surface frontale extérieure (6) de la pièce (4), un resserrement (7) dont la profondeur (a) est égale à 0,2-0,6*S, S étant l'épaisseur de la paroi de la pièce (4).
  7. Procédé de fluotournage selon la revendication 6, caractérisé par le fait que le resserrement (7) se raccorde par un angle (δ) de 45° maximum à la surface périphérique (8) de la pièce (4).
  8. Procédé de fluotournage selon une des revendications 1 à 7, caractérisé par le fait que l'opération de fluotournage est exécutée selon le procédé de fluotournage indirect, une contre-pointe (9) guidée dans la machine étant disposée contre l'outil de formage (2), l'outil de formage (2) et la contre-pointe (9) formant une unité et la pièce (4) étant serrée en tant qu'ébauche en forme de godet entre l'outil de formage (2) et le mandrin (1).
  9. Procédé de fluotournage selon une des revendications précédentes, caractérisé par le fait que pour fabriquer des pièces pourvues d'une denture de deux côtés on applique une combinaison des procédés de fluotournage direct et indirect de telle manière
    que deux outils de formage (2a, 2b) sont disposés entre une contre-pointe (9) et un mandrin (1),
    qu'une pièce (4') en forme de double godet est disposé entre les outils de formage (2a, 2b),
    qu'une molette (3a) voisine de la contre-pointe (9) est déplacée selon le procédé de fluotournage indirect, depuis l'extrémité de la pièce en direction du milieu de celle-ci et
    qu'une molette (3b) voisine du mandrin (1) est déplacée selon le procédé de fluotournage direct depuis le milieu de la pièce en direction du mandrin (1).
  10. Procédé de fluotournage selon la revendication 9, caractérisé par le fait que la pièce (4') en forme de double godet, en tant qu'ébauche, présente un resserrement (7') d'un côté orienté en direction du milieu qui se raccorde par un angle (σ) de 20° maximum à la surface périphérique (8) de la pièce (4') et une profondeur de 0,2-0,6*S, S étant l'épaisseur de la paroi de la pièce (4').
EP95942196A 1994-12-28 1995-12-22 Procede de fabrication de pieces a denture interieure Expired - Lifetime EP0800425B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4446919A DE4446919A1 (de) 1994-12-28 1994-12-28 Verfahren zur Herstellung von innenverzahnten Teilen
DE4446919 1994-12-28
PCT/EP1995/005105 WO1996020050A1 (fr) 1994-12-28 1995-12-22 Procede de fabrication de pieces a denture interieure

Publications (2)

Publication Number Publication Date
EP0800425A1 EP0800425A1 (fr) 1997-10-15
EP0800425B1 true EP0800425B1 (fr) 1999-02-17

Family

ID=6537330

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95942196A Expired - Lifetime EP0800425B1 (fr) 1994-12-28 1995-12-22 Procede de fabrication de pieces a denture interieure

Country Status (9)

Country Link
US (1) US6026666A (fr)
EP (1) EP0800425B1 (fr)
JP (1) JPH10511312A (fr)
AT (1) ATE176766T1 (fr)
CA (1) CA2209121A1 (fr)
CZ (1) CZ205597A3 (fr)
DE (2) DE4446919A1 (fr)
ES (1) ES2127578T3 (fr)
WO (1) WO1996020050A1 (fr)

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DE19723198A1 (de) * 1997-06-03 1998-12-10 Dynamit Nobel Ag Drückwalzvorrichtung und Verfahren zur Herstellung eines stirnverzahnten Werkstückes
DE19731055A1 (de) * 1997-07-19 1999-01-21 Dynamit Nobel Ag Vorrichtung und Verfahren zum Einformen einer Rillenstruktur in ein rohrförmiges Werkstück
DE19731056A1 (de) * 1997-07-19 1999-01-21 Dynamit Nobel Ag Verfahren zur Herstellung eines stirnverzahnten Werkstückes
DE19810265A1 (de) 1998-03-10 1999-09-16 Dynamit Nobel Ag Verfahren zur Herstellung einer metallischen Zylinderlaufbuchse
DE19830817B4 (de) * 1998-07-09 2011-06-09 Leifeld Metal Spinning Gmbh Verfahren zum Umformen eines Werkstücks durch Drückwalzen
AU768737B2 (en) 1998-10-28 2004-01-08 Cellon S.A. Textured and porous silicone rubber
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JP4491958B2 (ja) * 2000-11-20 2010-06-30 アイシン・エィ・ダブリュ株式会社 円筒部材の製造方法、及び円筒部材の製造装置
DE10217848A1 (de) * 2002-04-22 2003-11-06 Hay Tec Automotive Gmbh & Co K Verfahren zur Herstellung von Schiebemuffen für Schaltgetriebe
US7910218B2 (en) 2003-10-22 2011-03-22 Applied Materials, Inc. Cleaning and refurbishing chamber components having metal coatings
US7316142B2 (en) * 2004-05-21 2008-01-08 Lancaster Paul B Metal spin forming head
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US7670436B2 (en) 2004-11-03 2010-03-02 Applied Materials, Inc. Support ring assembly
US8617672B2 (en) 2005-07-13 2013-12-31 Applied Materials, Inc. Localized surface annealing of components for substrate processing chambers
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US20070125646A1 (en) * 2005-11-25 2007-06-07 Applied Materials, Inc. Sputtering target for titanium sputtering chamber
US8042370B2 (en) * 2006-02-07 2011-10-25 Ronjo, Llc Flow formed gear
US20070283884A1 (en) * 2006-05-30 2007-12-13 Applied Materials, Inc. Ring assembly for substrate processing chamber
US7981262B2 (en) 2007-01-29 2011-07-19 Applied Materials, Inc. Process kit for substrate processing chamber
US7942969B2 (en) 2007-05-30 2011-05-17 Applied Materials, Inc. Substrate cleaning chamber and components
US20090084317A1 (en) * 2007-09-28 2009-04-02 Applied Materials, Inc. Atomic layer deposition chamber and components
EP2241386A1 (fr) * 2009-04-16 2010-10-20 Felss GmbH Outil de façonnage pour la fabrication d'un profil intérieur, notamment d'une denture intérieure, d'une pièce usinée
DE102012105958A1 (de) 2012-07-04 2014-01-23 Thyssenkrupp Steel Europe Ag Verfahren zur Herstellung eines Verbindungselements zur Übertragung von Drehbewegungen
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
CN105414296B (zh) * 2015-12-10 2017-07-11 中国航天科技集团公司长征机械厂 带内纵齿离合器壳体复合旋压成形设备及工艺
EP3670019A1 (fr) * 2018-12-21 2020-06-24 Tubacex Innovación A.I.E. Procédés et machines de production de tubes au moyen d'une formation d'écoulement
CN113399935B (zh) * 2020-03-16 2022-05-20 无锡巨蟹智能驱动科技有限公司 一种谐波减速机柔轮的制造工艺

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Also Published As

Publication number Publication date
WO1996020050A1 (fr) 1996-07-04
CA2209121A1 (fr) 1996-07-04
EP0800425A1 (fr) 1997-10-15
DE59505133D1 (de) 1999-03-25
US6026666A (en) 2000-02-22
DE4446919A1 (de) 1996-07-04
JPH10511312A (ja) 1998-11-04
MX9704834A (es) 1998-07-31
ATE176766T1 (de) 1999-03-15
ES2127578T3 (es) 1999-04-16
CZ205597A3 (cs) 1998-10-14

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