EP0970765A2 - Procédé pour former une pièce par fluotournage - Google Patents

Procédé pour former une pièce par fluotournage Download PDF

Info

Publication number
EP0970765A2
EP0970765A2 EP99112960A EP99112960A EP0970765A2 EP 0970765 A2 EP0970765 A2 EP 0970765A2 EP 99112960 A EP99112960 A EP 99112960A EP 99112960 A EP99112960 A EP 99112960A EP 0970765 A2 EP0970765 A2 EP 0970765A2
Authority
EP
European Patent Office
Prior art keywords
preform
rolling
tool chuck
cylinder wall
forming
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.)
Granted
Application number
EP99112960A
Other languages
German (de)
English (en)
Other versions
EP0970765A3 (fr
EP0970765B1 (fr
Inventor
Karl-Heinz Köstermeier
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.)
Leifeld Metal Spinning GmbH
Original Assignee
Leico GmbH and Co Werkzeugmaschinenbau
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 Leico GmbH and Co Werkzeugmaschinenbau filed Critical Leico GmbH and Co Werkzeugmaschinenbau
Publication of EP0970765A2 publication Critical patent/EP0970765A2/fr
Publication of EP0970765A3 publication Critical patent/EP0970765A3/fr
Application granted granted Critical
Publication of EP0970765B1 publication Critical patent/EP0970765B1/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
    • 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
    • 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
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/28—Making machine elements wheels; discs
    • B21K1/30—Making machine elements wheels; discs with gear-teeth
    • 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 forming a workpiece by spinning rollers, in particular for producing internal teeth on the workpiece that has a cup-shaped preform axially clamped against a tool chuck and by means of at least a rolling element is pressed onto the tool chuck and the preform rotates relative to the rolling element.
  • the preform is centered radially and on both sides axially clamped so that the radial pressure of the spinning rollers the displaced material in the profile of the tool chuck penetrates and fills it.
  • the invention is therefore based on the object of specifying a method in which, in order to achieve a high-quality workpiece, the deformation resistance of the preform is almost constant in the region of the inner profile during the pressure rolling.
  • the at least one rolling element Forming begins at the open end of the preform against its Cylinder wall area is pressed and in axial relative movement over the cylinder wall area to the bottom of the preform in Forming contact is performed.
  • the relative axial movement can be compared to the preform by an axial movement an axially stationary rolling element, through an axial movement of the rolling element compared to an axially stationary preform or by a combined movement of the rolling element and the Preform.
  • a reliable profiling of the inside of the preform is made achieved according to the invention in that an internal toothing on molded into the cylinder wall area with an axial length which is less than the length of the cylinder wall area, and that the molded internal teeth in a defined Distance to the ground is formed.
  • inventive Spinning rolls from the open side of the preform can be material be moved towards the ground. It is according to the invention a space between the desired internal teeth and provided the floor in which the axially displaced material can be absorbed without undesirable compression.
  • the at least one rolling element overflows the cylinder wall of the Preform not all the way to the bottom, but stops in a defined one axial distance in front of the floor area.
  • one Transition contour formed with a wall thickness reinforcement becomes.
  • the corner area between the substantially radial extending floor and the substantially axial Cylinder wall area has the highest bending stress if the molded workpiece, for example, as a gear transmission part is used. Because on the inside of the corner area no defined design of the internal toothing achieved is a reliable high strength by a specially designed transition contour with a wall thickness reinforcement compared to the deformed cylinder wall area.
  • the transition region preferably has a conical contour which tapers from the bottom to the cylinder wall area.
  • the preform is formed by a large number of rolling elements, which are ring-like arranged around the preform and in a cage each are rotatably mounted, the preform can be geometrically maximum number of pressure rollers, rollers or balls on the circumference supported during their rotation and reshaped at the same time become.
  • the reshaping rolling elements circle the preform like a planet, when you touch and reshape them.
  • the preform is expediently in an axial relative movement moved by the ring-shaped rolling element arrangement and thereby pressed by the rolling elements on the spinning or tool chuck.
  • those stored in the cage can be used Rolling elements are fed radially.
  • the preform by tapered rollers is formed, which is inclined to the axis of rotation of the preform Roll arrangement in a conical outer ring, so can improved centering when inserting the preform into the rolling element arrangement be achieved. Furthermore is by a axial displacement and positioning of the rolling elements with the Cage radial positioning and adjustment of the rolling elements possible.
  • the preform is expediently between two axially movable Drive spindles of a press rolling machine clamped, whereby the tool chuck on one of the drive spindles and on the other Drive spindle a centering device are provided, that the preform is first on the drive spindle with the centering device arranged and kept centered and that the drive spindles for clamping the preform on the tool chuck be moved axially against each other. Then she can movement unit formed from the two drive spindles and the preform are used to generate the feed movement, which enables quick clamping and forming.
  • a centering pin is used as the centering device is used, on which the preform with a Hub opening is fitted with a precise fit.
  • the centering pin and the hub opening can be a clearance fit or a form a slight interference fit, thereby ensuring that the preform is first fixed to one drive spindle.
  • the opposite is used to clamp the preform onto the tool chuck Drive spindle retracted axially into the pot, the preform in its bottom area between the two drive spindles is clamped.
  • the two moved against each other Drive spindles form a composite, which preferably then with the workpiece through an axially fixed Forming device driven with the at least one rolling element becomes.
  • the preform is in any case with the open side Forming tool moved d. H. the open side of the preform is the large diameter of those formed by the rolling elements conical receiving opening facing.
  • a device 10 or a forming tool for performing the method according to the invention has a plurality of rollers 11 as rolling elements or spinning rollers in an annular arrangement (in the illustrated embodiment 14 rollers, see Fig. 2), which in recesses, the in an annular support body or cage 13 of the device 10 are formed, recorded and guided axially and radially are.
  • a fixed outer race or outer ring 14 is inserted in a housing 15 of the device 10 and forms an outer, hardened raceway 16 for the rollers 11, during an inner race through a preform 18 to be formed is formed.
  • the annular support body 13 is via a ball bearing 19 radially and rotatably in the housing 15 of the device 10 stored.
  • An axial bearing 20, for example a needle bearing supports the supporting body 13 axially via a spring device, e.g. B. in the form of several coil springs 21, on one with the housing 15 z. 8. housing end part connected by screw connection 22 from.
  • Fig. 1 shows the arrangement of the device 10 for rolling Internal toothing in a schematically illustrated press-rolling machine.
  • the cup-shaped preform 18 is on a centering pin 30, which has a fit with a hub opening 29 the preform 18 forms on a first, right drive spindle 31, which serves as a pressing element, coaxial to its axis of rotation 32 recorded and held.
  • the preform 18 with its bottom 33 against the front 34 of the drive spindle 31 created so that the open end 35 of the preform 18 too a coaxially arranged, second, left drive spindle 36 points on which a tool chuck 37 with a tooth profile 38 is set.
  • the inner diameter of the preform 18 corresponds approximately the outer diameter of the tool chuck 37.
  • the left drive spindle 36 is axially against the right drive spindle 31 driven until the tool chuck 37 in the Preform 18 is retracted and the bottom 33 of the preform 18 against clamps the right drive spindle 31 (see FIG. 3).
  • the preform 18 in Rotation offset.
  • the combination of left and right drive spindle 36 and 31 and preform 18 clamped between them then in a feed movement in the axial direction through the Device 10 driven (see FIG. 4), the free end 40th of the cylinder wall region 39 at the open end 35 of the preform 18 in the larger diameter of that set by the tapered Rolling elements 11 formed ring immersed and against the rolling elements 11 is pressed.
  • the device 10 or Forming tool on a radially adjustable cross support 45 Press rolling machine attached so that the housing 15 rests and the Rotate rolling elements 11 with their cage 13 about the axis of rotation 32.
  • the pressure rolling machine can also be constructed in such a way that the cross support 45 is axially movable and the axial feed movement of the forming tool 10 with axially stationary drive spindles 31, 36 executes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Forging (AREA)
  • Rolling Contact Bearings (AREA)
EP99112960A 1998-07-09 1999-07-05 Procédé pour former une pièce par fluotournage Expired - Lifetime EP0970765B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19830817A DE19830817B4 (de) 1998-07-09 1998-07-09 Verfahren zum Umformen eines Werkstücks durch Drückwalzen
DE19830817 1998-07-09

Publications (3)

Publication Number Publication Date
EP0970765A2 true EP0970765A2 (fr) 2000-01-12
EP0970765A3 EP0970765A3 (fr) 2000-05-24
EP0970765B1 EP0970765B1 (fr) 2004-10-06

Family

ID=7873538

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99112960A Expired - Lifetime EP0970765B1 (fr) 1998-07-09 1999-07-05 Procédé pour former une pièce par fluotournage

Country Status (5)

Country Link
US (1) US6269670B2 (fr)
EP (1) EP0970765B1 (fr)
JP (1) JP2000024749A (fr)
CA (1) CA2275559A1 (fr)
DE (2) DE19830817B4 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3838811B2 (ja) * 1999-04-02 2006-10-25 Ｎｔｎ株式会社 自在継手外輪の製造方法
DE10054399A1 (de) * 2000-11-02 2002-06-27 Forschungsges Umformtechnik Verfahren und Vorrichtung zur Herstellung eines Werkstückes mit Innenverzahnung, insbesondere eines Hohlrades
JP4069735B2 (ja) * 2002-02-21 2008-04-02 株式会社ジェイテクト 内歯車の成形方法
US7910218B2 (en) 2003-10-22 2011-03-22 Applied Materials, Inc. Cleaning and refurbishing chamber components having metal coatings
US7670436B2 (en) 2004-11-03 2010-03-02 Applied Materials, Inc. Support ring assembly
US20060205560A1 (en) * 2005-03-10 2006-09-14 Transform Automotive Llc Transmission unitary shell output carrier and ring gear
US7191626B2 (en) * 2005-06-07 2007-03-20 Profiroll Technologies Gmbh Method for producing an inner contour with an internal arbor acting on the inside wall of a workpiece
US8617672B2 (en) 2005-07-13 2013-12-31 Applied Materials, Inc. Localized surface annealing of components for substrate processing chambers
US7762114B2 (en) 2005-09-09 2010-07-27 Applied Materials, Inc. Flow-formed chamber component having a textured surface
US9127362B2 (en) 2005-10-31 2015-09-08 Applied Materials, Inc. Process kit and target for substrate processing chamber
US8647484B2 (en) 2005-11-25 2014-02-11 Applied Materials, Inc. Target for 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
US20080105021A1 (en) * 2006-11-07 2008-05-08 Yahya Hodjat Method of forming a gear
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
EP2127775B1 (fr) * 2008-05-26 2010-02-24 Repkon Machine and Tool Industry & Trade Ltd. Procédé et maschine de fluotournage pour la fabrication de pièces
CN113369407B (zh) * 2021-06-25 2022-03-15 北京超代成科技有限公司 一种旋压制造齿轮的方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19636567A1 (de) 1996-09-09 1997-07-17 Leico Werkzeugmaschb Gmbh & Co Verfahren zum Herstellen eines Getriebeteils mit einer Innenverzahnung

Family Cites Families (12)

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Publication number Priority date Publication date Assignee Title
US455336A (en) * 1891-07-07 Metal-rolling machine
US1596751A (en) * 1924-10-24 1926-08-17 Sandusky Foundry & Machine Co Tube-rolling machine
DE635015C (de) * 1932-09-10 1936-09-08 Fritz Kocks Dr Ing Verfahren zum Auswalzen von Hohlkoerpern
US3076359A (en) * 1959-02-20 1963-02-05 Honeywell Regulator Co Machine for producing thin walled tubing
US3473211A (en) * 1966-09-16 1969-10-21 Oswald J Lindell Method of forming teeth on a tubular member
DE2853957A1 (de) * 1978-12-14 1980-07-03 Karl Fischer Kochgefaess sowie verfahren und vorrichtung zu seiner herstellung
US4551122A (en) * 1983-02-22 1985-11-05 Dyneer Corporation Manufacture of poly-V sheet metal pulleys and product
US4693105A (en) * 1983-10-11 1987-09-15 Lee Jr Roy Method of and apparatus for straightening, swaging, and threading a pipe
DE3402301A1 (de) * 1984-01-24 1985-08-01 Fritz Prof. Dr.-Ing. 5450 Neuwied Fischer Vorrichtung und verfahren zum drueckwalzen
CH670970A5 (fr) * 1986-09-18 1989-07-31 Grob Ernst Fa
DE4313648C2 (de) * 1993-04-21 1997-10-09 Mannesmann Ag Verfahren und Vorrichtung zum Herstellen von nahtlosen Rohren durch Drückwalzen
DE4446919A1 (de) * 1994-12-28 1996-07-04 Dynamit Nobel Ag Verfahren zur Herstellung von innenverzahnten Teilen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19636567A1 (de) 1996-09-09 1997-07-17 Leico Werkzeugmaschb Gmbh & Co Verfahren zum Herstellen eines Getriebeteils mit einer Innenverzahnung

Also Published As

Publication number Publication date
DE59910698D1 (de) 2004-11-11
JP2000024749A (ja) 2000-01-25
EP0970765A3 (fr) 2000-05-24
US20010001367A1 (en) 2001-05-24
CA2275559A1 (fr) 2000-01-09
DE19830817B4 (de) 2011-06-09
DE19830817A1 (de) 1998-12-10
EP0970765B1 (fr) 2004-10-06
US6269670B2 (en) 2001-08-07

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