EP1184100A2 - Méthode et dispositif de formation d'une rainure - Google Patents

Méthode et dispositif de formation d'une rainure Download PDF

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Publication number
EP1184100A2
EP1184100A2 EP01114585A EP01114585A EP1184100A2 EP 1184100 A2 EP1184100 A2 EP 1184100A2 EP 01114585 A EP01114585 A EP 01114585A EP 01114585 A EP01114585 A EP 01114585A EP 1184100 A2 EP1184100 A2 EP 1184100A2
Authority
EP
European Patent Office
Prior art keywords
workpiece
bead
pressure roller
spindle
axially
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.)
Withdrawn
Application number
EP01114585A
Other languages
German (de)
English (en)
Other versions
EP1184100A3 (fr
Inventor
Bernhard Rolf
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
Leifeld Metal Spinning 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 Leico GmbH and Co Werkzeugmaschinenbau, Leifeld Metal Spinning GmbH filed Critical Leico GmbH and Co Werkzeugmaschinenbau
Publication of EP1184100A2 publication Critical patent/EP1184100A2/fr
Publication of EP1184100A3 publication Critical patent/EP1184100A3/fr
Withdrawn legal-status Critical Current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
    • 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

Definitions

  • the invention relates to a method for introducing a Beading in a workpiece according to the preamble of the claim 1.
  • the invention relates to a pressure rolling machine according to the preamble of claim 11.
  • a generic method and a generic device are known for example from JP-A-11 277 153.
  • Other methods for forming beads by pressing are known from DE-C-275 000 or GB-A-2 213 749. With this method, beads can be formed without cutting become. However, the shape accuracy is limited.
  • Grooves are used to insert sealing rings on pistons with exact flanks and edges at the transition to the piston surface needed. So far this has been a machining operation necessary. This is complex and involves loss of material and destroys material fibers in the structure.
  • the invention is based on the object of specifying a method and a device with which beads can be introduced into sheet metal bodies efficiently and with particularly high dimensional accuracy.
  • the method according to the invention is characterized in that that a spinning roller with a convex profile and attached to it adjoining support areas and that the Corrugation including their corner areas according to shape the convex profile and the side adjoining it Support areas of the spinning roller is formed.
  • a defined axial compression movement is carried out by what defines material is pushed into the area of the bead.
  • the special one The shape of the spinning roller represents a defined material flow and precise shaping of the corner areas or edges of the bead securely. In this way one becomes undesirable change in wall thickness in the area of the bead counteracted. Rather, according to the invention, one can be precise Defined shape and wall thickness in the bead area become.
  • Material can in particular from both sides flow into the forming zone.
  • This pressure rolling process can not only simple parts, but even high-precision components, such as brake pistons for Motor vehicle braking systems are manufactured.
  • the invention designed pressure roller allows despite the axial Upsetting the molding of beads even on conical ones Workpieces.
  • the spinning roller is placed outside the workpiece and for forming an external groove radially inwards on the workpiece is delivered.
  • the Pressure roller arranged inside the workpiece and for molding an inner groove radially outwards to the workpiece is delivered.
  • a quick and efficient implementation of the procedure is achieved according to the invention in that the workpiece between two movable spindle elements as a pressure stamp is clamped axially, both axially when upsetting be moved.
  • the trained as a stamp Spindle elements each have a first radially directed one Stop surface on which an axial end of the workpiece. The movement is preferably the same amount of the two spindle elements, but directed against.
  • the workpiece between a movable spindle element and a fixed one Spindle element is clamped axially that in the axial Clamp the movable spindle element and the pressure roller is moved axially to the fixed spindle element, the movable spindle element having a larger one Axial speed is traversed as the spinning roller.
  • the axial speed of the spindle element about twice the size of the spinning roller.
  • the opposite spindle element which to the housing is axially stationary, has a correspondingly trained Abutment surface so that a defined on both sides Compression force can be exerted and transmitted.
  • a further increase in efficiency of the method is according to the invention achieved in that the workpiece in the axial Clamping is centered.
  • at least one has the spindle elements on a centering.
  • This centering fixture can either have a center hole accordingly the outside diameter of the workpiece or a centering mandrel corresponding to an inside diameter of the workpiece his.
  • the pressure stamp is defined, whereby in the area of Bead wall thickness of the workpiece almost unchanged remains or is specifically thickened.
  • this is further developed by that the process of the pressure stamp depends on the radial Delivery of the spinning roller according to a specified control program is carried out.
  • This control program is included stored in a basically known CNC control, with which an actuator for one or more Press rolls and at the same time during forming Axial drive for at least one pressure stamp controlled become.
  • the axial compression movement is not continuous, but is carried out according to a defined course of the program. For a particularly precise formation of the bead, you can start with and / or a stronger one at the end of the molding-in movement axial material replenishment in the area to be molded Beading.
  • a particularly precise shaping of the bead is according to the invention achievable in that the bead between the Press roller on one side and a counter roller on the other other side is trained.
  • an eccentric counter roller mounted eccentrically to the spindle axis provided on a spindle element. This eccentric bearing of a relatively small eccentric roller allows you to easily shape the bead after molding it to be removed from the spindle element.
  • a particularly good shape of the bead is according to the invention further ensured that when molding the bead along the axial length of the workpiece Outer circumference and / or inner circumference is supported. This support ensures that no axial compression occurs unwanted buckling in a different area than on that of the bead to be molded.
  • a particularly good shaping of the corner areas of the bead is achieved according to the invention in that with completion the radial feed of the spinning roller a certain axial Upsetting is performed. In the end position is the Press roller contour fully on the circumference of the workpiece and a calibration is carried out in this stop position. By a final upsetting will again material into the Forming area pressed so that a gapless formation the corrugation takes place according to the roller contour.
  • the invention is characterized in that that the spinning roller has a convex profile and has laterally adjacent support areas, which according to the bead to be formed and its corner area are trained.
  • a preferred further development of the pressure rolling machine according to the invention is that both spindle elements as Stamp one radial and one circumferential Have stop surface. This not only allows a reliable upsetting of the workpiece, but this further allows a centered shot and also a good support of the workpiece during the upsetting process.
  • a tube for example, can be used as a workpiece or a pot-shaped workpiece with a closed bottom surface be reshaped.
  • a closed floor such as a brake piston
  • both spindle elements are movably supported are and each have a separate drive. On this can be done with an axially fixed pressure roller defines material on both sides in the forming zone of the Bead to be inserted. With asymmetrically trained The movement of the two spindle elements can bead for a correspondingly asymmetrical material feeding done unevenly.
  • a spindle element is movably supported and is driven while the other spindle element is stationary, and that the spinning roller is axially movable.
  • the spinning roller is axially movable.
  • a particularly high dimensional accuracy in the area of the bead and very small wall thickness tolerances are inventively thereby achieved that the radial and / or axial Delivery of the spinning roller simultaneously and in dependence is controlled by the process of the printing stamp.
  • FIG. 1 A pressure rolling machine 10 according to the invention is shown in FIG. 1 shown, with in the upper half of the drawing Condition before molding the bead and in the lower half of the drawing the condition at the completion of the bead molding is shown.
  • Two spindle elements 20, 22 which can be driven in rotation axially with respect to both sides of the workpiece 40 delivered to a spindle axis 17.
  • the first spindle element 20 and the second spindle element 22 are essentially constructed the same way, so that the construction of the spindle elements 20, 22 only in connection with the first spindle element 20 is described.
  • the first spindle element has 20 a receiving bore 30, the diameter of the outer diameter of the workpiece 40 forms a fit.
  • a chamfer 31 at the entry of the receiving bore 30 serves for easier insertion of the workpiece 40 into the mounting hole 30.
  • the receiving bore 30 is up to one certain depth in the sleeve-shaped spindle element 20 introduced so that a shoulder 32 is formed.
  • the Shoulder 32 serves as a stop surface for a head plate 35 of an ejector pusher 34.
  • the opposite of the cylindrical ejector plunger 34 larger diameter head plate 35 has at its head end a surface which serves as a stop for the workpiece 40.
  • the workpiece 40 is between the two stop surfaces the head plates 35 of the two spindle elements 20, 22 axially clamped so that a non-rotatable connection with the two spindle elements 20, 22 are formed. These will via a rotary drive, not shown, in rotation offset, whereupon one shown in partial section Press roller 12 with a convex profile 14 and on the side adjacent support areas 16 is fed radially.
  • the convex profile 14 is for molding a bead 42 or an outer groove 46 is formed in the workpiece 14.
  • the contour the support areas 16 correspond to those adjoining the bead 42 Workpiece areas. Between the convex profile 14 and the support areas 16 is a defined transition 15 formed which can be a radius or an edge.
  • An unwanted or uncontrolled thinning of the wall thickness To avoid in the forming area is controlled by the axial displacement of either one of the two spindle elements 20, 22 or both spindle elements 20, 22 after precisely feed material according to a given control program.
  • This combination of radial molding the bead by means of spinning roller 12 and the axial material feeding through the ones that act as a printing stamp Clamping elements 20, 22 is a combination of a pressure rolling and a folding process, resulting in the high Shape accuracy in the bead 42 to be formed or the External groove 46 leads.
  • the will Transitions 15 of the spinning roller 12 defines the corner regions 43 formed, which is between the bead 42 and the adjacent areas of the rotationally symmetrical Extend workpiece 40.
  • the pressure roller 12 After the formation of the bead 42, the pressure roller 12 radially reset and the two spindle elements 20, 22nd are axially spaced from the workpiece, the ejection of the workpiece 40 simultaneously by one method of the push rod 34 relative to the surrounding one sleeve-shaped spindle element 20, 22 can take place.
  • the press-rolling machine 10 of Fig. 1 is in the process of forming a cylindrical workpiece 40 'shown without a bottom.
  • the procedure for molding the bead is carried out as described in FIG. 1.
  • FIG. 3 Another embodiment of a pressure rolling machine according to the invention 3 can be seen from FIG.
  • a first Spindle element 20 as in the previously described pressure rolling machines is formed, is the second spindle element 22 'for high-precision forming of a bead 42' a workpiece 40 'with a counter roller 28.
  • Corresponding the contour of the bead 42 'to be formed by a convex profile 14 'of a pressure roller 12' has the counter roller 28 on the outside a corresponding concave Profile 29 with adjacent support sections 25. So the corner areas 43 'can also be very inside be formed exactly.
  • the outer diameter of the counter roller 28 is smaller than that Inner diameter of the hollow cylindrical workpiece 40 ', wherein the counter roller 28 is eccentric relative to the spindle axis 17 is rotatably mounted about an eccentric axis 27.
  • the second spindle element comprises 22 'a radially directed abutment surface 21', on which the workpiece 40 'on the one hand and on the other a head plate 35 of the first spindle element 20 abuts.
  • FIGS. 4 and 5 The variety of the method according to the invention can further Embodiments according to FIGS. 4 and 5 can be taken. 4, a complex, graduated workpiece 40 " reshaped.
  • the cylindrical support areas 16 of the spinning roller 12 ensure a safe material flow in the forming area and an exact shaping of the bead 42 "with their Corner areas 43 ".

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
EP01114585A 2000-08-14 2001-06-18 Méthode et dispositif de formation d'une rainure Withdrawn EP1184100A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10039706A DE10039706B4 (de) 2000-08-14 2000-08-14 Verfahren zum Einbringen einer Sicke und Drückwalzmaschine
DE10039706 2000-08-14

Publications (2)

Publication Number Publication Date
EP1184100A2 true EP1184100A2 (fr) 2002-03-06
EP1184100A3 EP1184100A3 (fr) 2004-01-21

Family

ID=7652395

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01114585A Withdrawn EP1184100A3 (fr) 2000-08-14 2001-06-18 Méthode et dispositif de formation d'une rainure

Country Status (4)

Country Link
US (2) US20020020203A1 (fr)
EP (1) EP1184100A3 (fr)
JP (1) JP2002102943A (fr)
DE (1) DE10039706B4 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006122839A2 (fr) * 2005-05-20 2006-11-23 BSH Bosch und Siemens Hausgeräte GmbH Tambour a linge pour machine de traitement du linge
CN108817189A (zh) * 2018-06-20 2018-11-16 华中科技大学 一种杯形件外槽旋压成形方法

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007013524A1 (de) * 2007-03-21 2008-09-25 Robert Bosch Gmbh Dosiermodul mit verbesserten akustischen Eigenschaften
DE102007041149B3 (de) * 2007-08-30 2009-04-02 Technische Universität Dresden Verfahren und Vorrichtung zum Querwalzen abgestufter Hohlwellen oder zylindrischer Hohlteile aus einem Rohr
DE502008000404D1 (de) * 2008-05-26 2010-04-08 Repkon Machine And Tool Indust Verfahren zur Fertigung von Werkstücken und Drückwalzmaschine dazu
DE102010011809B4 (de) * 2010-03-18 2013-11-14 Leifeld Metal Spinning Ag Verfahren und Drückwalz- und Profiliermaschine zum Herstellen eines rotationssymmetrischen Werkstückes sowie Profilrolle hierfür
US9291057B2 (en) 2012-07-18 2016-03-22 United Technologies Corporation Tie shaft for gas turbine engine and flow forming method for manufacturing same
DE102015005875A1 (de) * 2015-05-11 2016-11-17 Max Simmel Produktions GmbH Verfahren zum Rollieren von tiefliegenden Profilen in langen Hohlkörpern mit kleinem Durchmesser
CN114769405B (zh) * 2022-04-27 2023-07-21 西安航天动力机械有限公司 带球形封头变截面圆筒工件的整体旋压加工方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2988805A (en) * 1954-07-29 1961-06-20 Earl A Thompson Art of making a tappet
US4041747A (en) * 1976-08-05 1977-08-16 Collins Machinery Corporation Pipe grooving apparatus
US6041634A (en) * 1997-10-21 2000-03-28 Detroit Diesel Corporation Portable bead roller

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE275000C (fr) *
US3299680A (en) * 1965-06-10 1967-01-24 Earl A Thompson Rolling machine for forming tubular workpieces
US3595049A (en) * 1969-01-30 1971-07-27 Teddington Bellows Ltd Bellows
JPS5360368A (en) * 1976-11-11 1978-05-30 Kanemitsu Kk Method of forming multistage vvpulley
US4173876A (en) * 1978-03-27 1979-11-13 Nudyne Corporation Method of producing metal tubing
SE429317B (sv) * 1980-05-29 1983-08-29 Plm Ab Sett att astadkomma ett element av polyetylentereftalat eller dermed liknande termoplastmaterial jemte anordning herfor
DE3144695A1 (de) * 1981-11-06 1983-05-19 Mitsubishi Jukogyo K.K., Tokyo Verfahren zum walzen von hohlen gebilden
GB2213749A (en) * 1987-12-19 1989-08-23 Teddington Bellows Limited Forming convolutions in metal cylinder
US4953376A (en) * 1989-05-09 1990-09-04 Merlone John C Metal spinning process and apparatus and product made thereby
JPH11277153A (ja) * 1998-03-30 1999-10-12 Ngk Insulators Ltd 円筒状部材へのくびれの形成方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2988805A (en) * 1954-07-29 1961-06-20 Earl A Thompson Art of making a tappet
US4041747A (en) * 1976-08-05 1977-08-16 Collins Machinery Corporation Pipe grooving apparatus
US6041634A (en) * 1997-10-21 2000-03-28 Detroit Diesel Corporation Portable bead roller

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006122839A2 (fr) * 2005-05-20 2006-11-23 BSH Bosch und Siemens Hausgeräte GmbH Tambour a linge pour machine de traitement du linge
WO2006122839A3 (fr) * 2005-05-20 2007-04-26 Bsh Bosch Siemens Hausgeraete Tambour a linge pour machine de traitement du linge
EA010761B1 (ru) * 2005-05-20 2008-10-30 Бсх Бош Унд Сименс Хаусгерете Гмбх Бельевой барабан машины для обработки белья
CN101194063B (zh) * 2005-05-20 2010-11-03 Bsh博世和西门子家用器具有限公司 用于衣物处理机的衣筒
CN108817189A (zh) * 2018-06-20 2018-11-16 华中科技大学 一种杯形件外槽旋压成形方法
CN108817189B (zh) * 2018-06-20 2019-09-13 华中科技大学 一种杯形件外槽旋压成形方法

Also Published As

Publication number Publication date
JP2002102943A (ja) 2002-04-09
US20040065129A1 (en) 2004-04-08
DE10039706A1 (de) 2002-03-07
DE10039706B4 (de) 2007-11-29
US20020020203A1 (en) 2002-02-21
EP1184100A3 (fr) 2004-01-21

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