EP2024111A1 - Dispositif et procédé pour produire des corps profilés - Google Patents

Dispositif et procédé pour produire des corps profilés

Info

Publication number
EP2024111A1
EP2024111A1 EP07722115A EP07722115A EP2024111A1 EP 2024111 A1 EP2024111 A1 EP 2024111A1 EP 07722115 A EP07722115 A EP 07722115A EP 07722115 A EP07722115 A EP 07722115A EP 2024111 A1 EP2024111 A1 EP 2024111A1
Authority
EP
European Patent Office
Prior art keywords
workpiece
segment discs
profile
forming process
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
EP07722115A
Other languages
German (de)
English (en)
Other versions
EP2024111B8 (fr
EP2024111B1 (fr
Inventor
Norbert Ziesel
Frank Beig
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.)
L Schuler GmbH
Original Assignee
Mueller Weingarten AG
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 Mueller Weingarten AG filed Critical Mueller Weingarten AG
Publication of EP2024111A1 publication Critical patent/EP2024111A1/fr
Application granted granted Critical
Publication of EP2024111B1 publication Critical patent/EP2024111B1/fr
Publication of EP2024111B8 publication Critical patent/EP2024111B8/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B21H1/00—Making articles shaped as bodies of revolution
    • B21H1/18—Making articles shaped as bodies of revolution cylinders, e.g. rolled transversely cross-rolling
    • B21H1/20—Making articles shaped as bodies of revolution cylinders, e.g. rolled transversely cross-rolling rolled longitudinally
    • 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
    • B21D17/00—Forming single grooves in sheet metal or tubular or hollow articles
    • B21D17/04—Forming single grooves in sheet metal or tubular or hollow articles by rolling
    • 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
    • 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

Definitions

  • the invention relates to an apparatus and a method for producing longitudinal grooves in cylindrical workpieces, in particular for longitudinal grooves with non-uniform profile, wherein the deformation by means of SegmentSscalen, similar to a rolling process.
  • profile bodies such as disc carriers of clutches, toothed belt pulleys or similar workpieces with a cylindrical basic structure
  • high accuracies and precision are often required.
  • accuracy and surface quality are important.
  • a special rolling tool makes it possible to produce the workpiece from a blank having a smooth outer contour by means of a press, wherein each press stroke forms a workpiece from a blank. With each press stroke, a rolling process takes place in which the profile rollers press the desired outer profile into the lateral surface of the workpiece.
  • the profile rollers are arranged in a lower tool along the circumference of the workpiece to be machined. If the workpiece is pressed between the rollers by means of an upper tool fastened to the plunger of the press, these are supported on support rollers with appropriate mounting.
  • the lower tool can be constructed rotationally symmetrical, wherein the profile of the workpiece generating individual profile rollers are regularly distributed at a uniform angle to each other along the circumference of the workpiece.
  • this slip usually does not cause problems.
  • the profile is irregular in the longitudinal direction, for example, with a web running transversely to the longitudinal groove in the middle of the profile length, the slip leads to dimensional inaccuracies and thus to quality defects.
  • DE 195 06 391 A1 discloses a method in which the profile rollers are driven in such a way that the peripheral speed in the forming area coincides with the speed of the workpiece.
  • the drive is made by transmitting the plunger movement via gear means, such as racks and gears on the profile rollers. Because of this Method or by the arrangement of the above-mentioned transmission means the slip between the profile rollers and workpiece is reliably avoided.
  • EP 0 006 137 A1 likewise describes an apparatus for producing longitudinal grooves in a cylindrical workpiece.
  • the forming is done not by profile rolls but by segment discs.
  • the segment discs are not driven.
  • the outer contours of the segment discs roll on the surface of the moving down workpiece.
  • the segment discs move on a circular trajectory.
  • the positions of the segment discs at the beginning of the procedure are defined by spring-actuated retaining pins.
  • Segment discs are connected by means of a spherical plain bearing with a housing. Due to the fact that the segmented disks are moved exclusively by the forces acting during the deformation and have no drive synchronized with the tappet movement, a slight slip between the segmented disk surface and the workpiece can not be avoided. In addition, a precisely defined initial position of the segment discs for the forming process can not be realized. Especially for workpieces with longitudinally irregular groove profiles this is a decisive • disadvantage. Task and advantage of the invention
  • the invention has for its object to develop a method and apparatus for producing profiles in cylindrical workpieces, by means of a structurally simple and thus cost-effective and reliable tool, with a slip between the workpiece surface and the Umformtechnikmaschinen is reliably avoided, and wherein by a precisely defined starting point of the Umformeingriffes a high precision of the profile to be produced is achieved.
  • This object is achieved on the basis of a method according to the preamble of claim 1 by the characterizing features of claim 1 and starting from a device according to the preamble of claim X, by the characterizing features of claim Y.
  • the invention is based on the idea to perform the forming process similar to a Rollumformmaschinemaschinemaschineelement, but with driven SegmentScheiben.
  • the segment discs are guided on sliding surfaces and are synchronized by a positive coupling with the punch or tool lower part with the movement of the workpiece., This means that the segment discs are not moved by the forces acting during the forming forces, but by the movement of the punch. This eliminates slippage between the segment discs and the workpiece during forming.
  • the Segment discs guided on sliding surfaces. These sliding surfaces are curved such that a rolling of the profiled segment disc surfaces on the workpiece is made possible. So that the segment discs can move along the curved sliding surfaces, they are from below through the
  • the holding force is applied to the segment discs of gas springs, which in turn are connected to the upper tool.
  • Other power transmission means, such as springs are conceivable.
  • the SegmentScheiben are held at any time of the forming between the tool shell and attached components and the lower tool part and thus perform exactly the same vertical movement of the workpiece, which is also connected to the upper tool or with components attached thereto.
  • the contact surfaces of the components, which are in communication with the segment discs, are designed so that the horizontal portion of
  • Segment disc movement is recorded.
  • the surfaces are configured to allow for substantially horizontal sliding movement between the segment discs and the contacting components.
  • Another advantage of the method and the device according to the invention is the possibility to lift the workpiece out of the device after the forming and to release it for a workpiece transport system.
  • This lifting is preferably carried out by means of a gas spring.
  • Actuating mechanisms are conceivable, for example, the lifting of the formed workpiece can also be done by means of hydraulic or pneumatic cylinder.
  • Another feature of the method and the device according to the invention is that the tool lower part is displaced during the forming process through the upper tool over the punch, the rolling mandrel and the workpiece down against a force.
  • This force opposing the forming movement can for example result from the lifting mechanism.
  • Figure 5 Enlarged view of Umformeingriffes during forming
  • FIG. 1 shows the device 1 according to the invention in a sectional view.
  • the device 1 consists of an upper tool part 2 and a lower tool part 3. With the upper die 2 firmly connected to the punch 4 with the
  • the lower tool part 3 is in a cast housing. 6 vertically movably mounted. Via a gas spring 7, the lower tool part 3 is connected to a workpiece holder 8. In the illustrated position, the workpiece 9 as a blank was already on the grippers 10 of a workpiece transport system not shown here on the
  • Workpiece 9 is generated in that the workpiece holder 8 is displaced with the workpiece 9 against the force of the gas spring 7 down.
  • the device 1 has reached a position in which a driver 11, which is connected via gas springs 12 with the upper tool part 2, the upper contact surfaces of the segment discs 13 has reached.
  • the lower contact surfaces of the segment discs 13 rest on the lower tool part 3.
  • the gas springs 12 are now retracted, the rolling mandrel 5 is located in the workpiece 9 and the segment discs 13 are held from above by the driver 11 and from below through the lower tool part 3 in a well-defined position.
  • the deformation of the workpiece 9 begins by the segment discs thirteenth Due to the positive connections of all moving components, the segment discs 13, based on their vertical component movement, moved synchronously with the workpiece 9 down.
  • the necessary for the forming process rolling of the segment discs 13 on the workpiece 9 is achieved in that the segment discs 13 move on a curved sliding surface 14 along.
  • the segment discs 13 move in a circular path and can thus roll precisely on the workpiece 3.
  • the workpiece 9 facing sides of the segment discs 13 are equipped with the negative shape of the workpiece 9 to be produced profile.
  • this embodiment is a profile with longitudinal grooves, which have a web 15 in the middle of the profile.
  • this profile is clearly 'to recognize. In the position shown, the forming has already taken place. In the middle of the profile of the web 15 is clearly visible. The shape and in particular the position of this web 15 high quality requirements are made.
  • a precise deformation is only possible if, as in the device 1 according to the invention, a precisely defined starting position for the deformation is present, which is independent of friction conditions between segment discs 13 and the workpiece 9 or thickness tolerances of the workpiece 9.
  • FIG. 4 shows the position of the device 1 after the forming process.
  • the segment discs 13 have been pressed by the contact with the driver 11 down and have rolled so the profile on the workpiece 9.
  • Segment discs 13 on the sliding surfaces 14 is enabled or supported by a pressure lubrication, which over the Lubrication channel 16 is carried out. Due to the circular movement of the segment discs 13 along the sliding surfaces 14 arise at the contact points between the driver 11 and the segment discs 13 and between the lower tool part 3 and the SegmentScheiben 13, relative movements. The contact surfaces of the driver 11 and the lower tool part 3 are therefore designed so that the segment discs 13 are held or guided at any time during the forming both from above, and from below. After the forming process is completed, the tool upper part 2 moves with the
  • stamp 4 and the rolling mandrel 5 upwards.
  • the gas spring 7 extends and moves the workpiece holder 8 with the formed workpiece 9 in the same manner as the punch 5 up until the position is reached, which is shown in Figure 1.
  • the workpiece 9 is now free and can be gripped and transported by the grippers 10 of the workpiece transport system.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Heat Treatment Of Articles (AREA)
  • Mechanical Operated Clutches (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)

Abstract

L'invention concerne un dispositif et un procédé pour produire des rainures longitudinales dans des pièces cylindriques, en particulier des rainures longitudinales présentant un profil irrégulier, le formage étant réalisé au moyen de meules segmentées (13) à la manière d'un procédé de roulage.
EP07722115A 2006-05-26 2007-03-27 Dispositif et procédé pour produire des corps profilés Active EP2024111B8 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006025034A DE102006025034A1 (de) 2006-05-26 2006-05-26 Vorrichtung und Verfahren zur Herstellung von Profilkörpern
PCT/DE2007/000556 WO2007137543A1 (fr) 2006-05-26 2007-03-27 Dispositif et procédé pour produire des corps profilés

Publications (3)

Publication Number Publication Date
EP2024111A1 true EP2024111A1 (fr) 2009-02-18
EP2024111B1 EP2024111B1 (fr) 2011-06-29
EP2024111B8 EP2024111B8 (fr) 2011-09-21

Family

ID=38178935

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07722115A Active EP2024111B8 (fr) 2006-05-26 2007-03-27 Dispositif et procédé pour produire des corps profilés

Country Status (7)

Country Link
US (1) US8596104B2 (fr)
EP (1) EP2024111B8 (fr)
AT (1) ATE514500T1 (fr)
CA (1) CA2653049C (fr)
DE (1) DE102006025034A1 (fr)
MX (1) MX2008015034A (fr)
WO (1) WO2007137543A1 (fr)

Families Citing this family (12)

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Publication number Priority date Publication date Assignee Title
DE102008017608B3 (de) * 2008-04-06 2009-04-30 Aweba Werkzeugbau Gmbh Aue Verfahren zur Herstellung eines innen- und außenverzahnten topfförmigen Blechteiles und eine Vorrichtung hierzu
DE102008002297A1 (de) 2008-06-09 2009-12-10 Allgaier Werke Gmbh Rollumformverfahren zur Herstellung von längsverzahnten Profilkörpern in topfförmigen zylindrischen Werkstücken
DE102008038127B3 (de) * 2008-08-18 2010-02-04 Leib, Ulrich, Dr.-Ing. Verfahren und Vorrichtung zur Herstellung von hochgenauen innen- und außenverzahnten, topfförmigen Blechteilen
DE102008047985A1 (de) 2008-09-18 2010-03-25 Webo Werkzeugbau Oberschwaben Gmbh Vorrichtung und Verfahren zur Herstellung von Längsnuten in zylindrischen Werkstücken
DE102010020097A1 (de) * 2010-05-10 2011-11-10 Webo Werkzeugbau Oberschwaben Gmbh Verfahren zur Herstellung einer Sprengringnut in einem Profilkörper
JP5569495B2 (ja) * 2011-09-30 2014-08-13 アイシン・エィ・ダブリュ株式会社 カップ状部品の製造方法及び製造装置
DE102013006150B4 (de) * 2013-04-10 2021-09-30 Webo Werkzeugbau Oberschwaben Gmbh Bauteil mit Innen- und Außenverzahnung sowie Verfahren zur Herstellung des Bauteils und Werkzeugsatz zur Ausführung des Verfahrens
DE102015009733A1 (de) * 2015-07-31 2017-02-02 Transform Automotive LLC, Inc. Verfahren zum Rollen von Lamellenträgern oder dergleichen und ein hierzu verwendeter Profilrollensatz
DE102016006589B4 (de) 2016-05-28 2021-06-10 Form Technology Gmbh Verfahren und Vorrichtung zur Herstellung von Längsnuten in zylindrischen Bauteilen
CN108167333B (zh) * 2016-12-07 2023-12-08 汕头市东方科技有限公司 一种罐体槽型加工装置
DE102017222891A1 (de) 2017-12-15 2019-06-19 Zf Friedrichshafen Ag Blech-Lamellenträger sowie Verfahren zu dessen Drehzahlfestigkeitserhöhung
CH714772A1 (de) * 2018-11-15 2019-09-13 Grob Ernst Fa Vorrichtung und Verfahren zum kaltumformenden Profilieren von Werkstücken.

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US2145125A (en) * 1936-10-06 1939-01-24 Mark E Moore Can forming machine
US3591136A (en) * 1969-02-26 1971-07-06 Arthur E Bishop Rotary valve with curved valve slot
FR2081297B2 (fr) * 1970-03-20 1974-05-03 Cuq Pierre
DE2017709A1 (de) 1970-04-14 1971-11-04 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Werkzeug zum Einrollen von Längsnuten in zylindrische Werkstücke
FR2281180A2 (fr) * 1974-08-09 1976-03-05 Anvar Procede et machine a retreindre pour pieces tubulaires, avec regulation de l'epaisseur
US4178790A (en) * 1978-05-22 1979-12-18 Ex-Cell-O Corporation Roll-through cold forming apparatus
ES523933A0 (es) * 1982-07-08 1984-06-16 Acco Babcock Inc Aparato de forjar con estampa, y metodo correspondiente
ZA857578B (en) * 1984-10-04 1986-05-28 Bishop Arthur E Means for manufacturing components of rotary valves
CH686817A5 (de) * 1992-03-04 1996-07-15 Grob Ernst Fa Vorrichtung und Verfahren zum Herstellen eines wenigstens innen gerade oder schraeg zur Werkstueckachse profilierten hohlen Werkstuecks.
DE19506391B4 (de) * 1995-02-23 2010-01-07 Allgaier Werke Gmbh Verfahren zum Herstellen eines ein zahn- oder wellenförmiges Profil aufweisenden Getriebebauteils aus einer Blechplatine
DE19531907A1 (de) 1995-08-30 1997-03-06 Schuler Pressen Gmbh & Co Vorrichtung und Verfahren zur Herstellung von Profilkörpern
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Also Published As

Publication number Publication date
MX2008015034A (es) 2008-12-10
US8596104B2 (en) 2013-12-03
EP2024111B8 (fr) 2011-09-21
EP2024111B1 (fr) 2011-06-29
CA2653049A1 (fr) 2007-12-06
CA2653049C (fr) 2014-04-08
WO2007137543A1 (fr) 2007-12-06
DE102006025034A1 (de) 2007-11-29
US20090126440A1 (en) 2009-05-21
ATE514500T1 (de) 2011-07-15

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