EP2314395A1 - Dispositif et procédé destinés au formage des pièces à usiner - Google Patents

Dispositif et procédé destinés au formage des pièces à usiner Download PDF

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Publication number
EP2314395A1
EP2314395A1 EP09013252A EP09013252A EP2314395A1 EP 2314395 A1 EP2314395 A1 EP 2314395A1 EP 09013252 A EP09013252 A EP 09013252A EP 09013252 A EP09013252 A EP 09013252A EP 2314395 A1 EP2314395 A1 EP 2314395A1
Authority
EP
European Patent Office
Prior art keywords
workpiece
mandrel
contour
axis
rotation
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
EP09013252A
Other languages
German (de)
English (en)
Other versions
EP2314395B1 (fr
EP2314395B2 (fr
Inventor
Ahemt Neset Özsoy
Cem Denizhan Biro
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.)
REPKON MACHINE AND TOOL INDUSTRY AND TRADE INC.
Original Assignee
Repkon Machine And Tool Industry & Trade Ltd
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.)
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Publication date
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Application filed by Repkon Machine And Tool Industry & Trade Ltd filed Critical Repkon Machine And Tool Industry & Trade Ltd
Priority to EP09013252.3A priority Critical patent/EP2314395B2/fr
Priority to ES09013252.3T priority patent/ES2388122T5/es
Publication of EP2314395A1 publication Critical patent/EP2314395A1/fr
Publication of EP2314395B1 publication Critical patent/EP2314395B1/fr
Application granted granted Critical
Publication of EP2314395B2 publication Critical patent/EP2314395B2/fr
Active 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

Definitions

  • the invention relates to a device for forming workpieces according to the preamble of claim 1 and a method for forming workpieces according to claim 9.
  • the object of the invention is to provide a device and a method which do not have the disadvantages mentioned.
  • At least one forming tool acting on the inner contour of the workpiece is provided, which is supported on a mandrel.
  • This allows both-sided machining of the inner and outer contours.
  • the simultaneous attack of the forming tools on the inner and outer contour makes it possible to produce thin wall thicknesses. Due to the support on the mandrel acting on the inner contour of the workpiece forming tools must be performed only in the axial direction.
  • the shape of the inner contour of the formed workpiece can be predetermined by the outer contour of the mandrel.
  • the device shown has a rotatable and parallel to a longitudinal axis X of the device provided mandrel 7 and one or a plurality, optionally in the axial longitudinal direction displaceable (n), holder 10, on which one or a plurality of forming tool (s) 9 pivotally or otherwise with variable distance to the axis X are attached.
  • the forming tools may be rollers. It is possible to provide a number of engaging on the inner contour of the workpiece 3 forming tools 9, which corresponds to the number of acting on the outer contour of the workpiece 3 forming tools 8.
  • the forming tools 8 acting on the outer contour of the workpiece 3 can preferably be moved along a predetermined contour relative to the workpiece 3.
  • An advantageous embodiment also provides a workpiece support 13, which is clamped against the free end of the workpiece 3 or supports it in other ways. This can be rotatably mounted against the workpiece 3, for example by ball bearings 15 and / or by a pressure device, for example, a pressure cylinder 14 to be axially movable.
  • the mandrel 7 has an outer contour, which ideally corresponds to the inner contour of the formed workpiece 4. On this contour of the mandrel 7, the / on the inner contour of the workpiece 3 attacking (s) forming tool (s) 9 based.
  • the forming tools 9 acting on the inner contour of the workpiece 3, in particular in the embodiment of the functional surfaces coming into contact with the mandrel 7 or workpiece 3, are designed in a manner which causes them to roll or slide on the mandrel 7 and to machine the workpiece 3 during forming permits.
  • a clamping element 11 for example an annular spring, can be provided.
  • the workpiece 3 can be clamped in the, advantageously driven, tool holder 2 of the possibly axially movable main spindle box 1 of the mandrel 7.
  • tool holder 2 for this purpose may be provided on the mandrel 7, optionally rotatably mounted, printhead 7.2.
  • the forming tools 8 acting on the outer contour can be moved in a manner that enables the production of the desired outer contour of the formed workpiece 4.
  • the number of forming tools 8 acting on the outer contour of the workpiece 3 is preferably identical to the number of forming tools 9 acting on the inner contour of the workpiece 2.
  • the forming tools can then be arranged so that they attack in pairs on the inner and outer contour at the same point of the workpiece 3.
  • these outer and inner forming tools 8, 9 are preferably in the axial direction in a fixed position to each other.
  • the workpiece 3 can be cooled by coolant from the inside and / or outside.
  • the clamped workpiece 3 is centered by the tool holder 2 and pressed against the pressure of, preferably, for example, by a feed cylinder 6, mandrel 7.
  • the bracing can be done manually or automatically by a tensioning device, not shown.
  • the unit thus formed can be so, preferably by a feed cylinder 5, are moved to a suitable forming position.
  • the mandrel 7 is supported in the interior of the workpiece 3, optionally via a print head 7, 2, either at the bottom of the workpiece 3 or at the stop (not shown) in the tool holder 2.
  • a rotary connection 6,1 between the mandrel 7 and a pressure device, e.g. the piston rod of a feed cylinder 6 may be provided. If two counteracting pressure devices, for example pressure cylinders 5 and 6, are provided, the unit formed from mandrel 7, workpiece 3 and workpiece holder 2 can be moved by a higher force of a feed cylinder with a controlled feed.
  • the forming tools bring the material of the workpiece 3 by the contact pressure to flow, wherein radial, tangential and / or axial material flow can occur.
  • the radial distance of each engaging outer and inner contour surfaces of the forming tools to each other determines the wall thickness W to be formed of the formed workpiece 4.
  • the inner diameter of the formed workpiece 4 in each axial position of the feed region is predetermined by the diameter of the mandrel 7 in the respective axial position and the dimensions of the inner contour engaging forming tools 9, which are supported on the mandrel 7.
  • the outer diameter of the formed workpiece of the wall thickness W is determined by the position of the outer contour given attacking forming tools. This makes it possible to produce workpieces with constant wall thickness W in the axial direction, it is also possible to produce regions with different wall thicknesses W. By a corresponding shaping of the mandrel 7, it is possible to produce conical, convex or concave transitions between regions with different diameters. In particular, it is possible to manufacture cylindrical portions having a smaller diameter than the adjacent portion (s).
  • the optionally provided workpiece support 13 can be axially displaced from the flowing material against a, preferably adjustable, back pressure.
  • the outer forming rollers 8 and 9 and the optionally provided workpiece support and / or the unit consisting of the main spindle box 1, chuck 2 and finished part 4 and optionally mandrel 7 can optionally be moved into an unloading position.
  • a displaceable workpiece holder 2 is provided.
  • a driven workpiece holder 2 may be provided.
  • the number of forming tools 8 acting on the outer contour of the workpiece 3 can match the number of forming tools 9 acting on the inner contour of the workpiece 3.
  • a forming tool 8 and 9 acting on the respective contour can engage in pairs on the inner and outer contours of the workpiece 3.
  • the at the outer contour of the workpiece 3 attacking forming tools 8 follow a predetermined contour.
  • the predetermined contour corresponds to that of the formed workpiece 4.
  • At least one forming tool can be designed as a forming roller.
  • the surfaces over which the forming tools 8 engage the outer contour of the workpiece 3 and the surfaces via which the forming tools 9 engage the inner contour of the workpiece 3 can be profiled differently.
  • an axially displaceable workpiece support 13 is provided.
  • a rotatable about the axis of rotation X storage 15 a workpiece support 13 is provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Gripping On Spindles (AREA)
  • Turning (AREA)
EP09013252.3A 2009-10-21 2009-10-21 Dispositif et procédé destinés au formage des pièces à usiner Active EP2314395B2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP09013252.3A EP2314395B2 (fr) 2009-10-21 2009-10-21 Dispositif et procédé destinés au formage des pièces à usiner
ES09013252.3T ES2388122T5 (es) 2009-10-21 2009-10-21 Dispositivo y procedimiento para conformar piezas de trabajo

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09013252.3A EP2314395B2 (fr) 2009-10-21 2009-10-21 Dispositif et procédé destinés au formage des pièces à usiner

Publications (3)

Publication Number Publication Date
EP2314395A1 true EP2314395A1 (fr) 2011-04-27
EP2314395B1 EP2314395B1 (fr) 2012-05-16
EP2314395B2 EP2314395B2 (fr) 2016-11-02

Family

ID=43586998

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09013252.3A Active EP2314395B2 (fr) 2009-10-21 2009-10-21 Dispositif et procédé destinés au formage des pièces à usiner

Country Status (2)

Country Link
EP (1) EP2314395B2 (fr)
ES (1) ES2388122T5 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1602332A1 (de) 1966-05-05 1970-07-16 Rotary Profile Anstalt Vorrichtung zur Behandlung von rohrfoermigen Werkstuecken
GB1383194A (en) * 1970-10-08 1975-02-05 Platt International Ltd Open-end spinning apparatus
DE3545506A1 (de) * 1985-12-20 1987-07-02 Man Technologie Gmbh Werkzeug zum drueckwalzen von hohlzylindrischen werkstuecken
US4693105A (en) 1983-10-11 1987-09-15 Lee Jr Roy Method of and apparatus for straightening, swaging, and threading a pipe
US6442988B1 (en) * 2001-05-01 2002-09-03 Alcan International Limited Methods of spin forming initially cylindrical containers and the like
EP1283333A1 (fr) * 2001-08-10 2003-02-12 Leico GmbH & Co. Werkzeugmaschinenbau Procédé pour la production d'un pot catalytique
US20030046803A1 (en) * 2001-08-10 2003-03-13 Ryuichi Kaneko Manufacturing method of cylinder
EP2210682A1 (fr) 2009-07-09 2010-07-28 Leifeld Metal Spinning GmbH Méthode et appareil de fluotournage

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1610593A (en) † 1922-06-24 1926-12-14 Roeckner Martin Manufacture of seamless pipes
US1528832A (en) † 1922-10-05 1925-03-10 Kellogg M W Co Apparatus for making seamless tubes
US2305794A (en) † 1939-03-23 1942-12-22 Roeckner Martin Device for adjusting inner rolls in rolling mills for rolling pipes
US3287951A (en) † 1966-03-04 1966-11-29 Ladish Co Art of roll-reducing ring wall thickness
AU772327B2 (en) † 1998-12-22 2004-04-22 Weatherford Technology Holdings, Llc Procedures and equipment for profiling and jointing of pipes
DE102007002228A1 (de) † 2007-01-10 2008-07-31 Benteler Automobiltechnik Gmbh Verfahren und Vorrichtung zur Herstellung von innenprofilierten Rohren

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1602332A1 (de) 1966-05-05 1970-07-16 Rotary Profile Anstalt Vorrichtung zur Behandlung von rohrfoermigen Werkstuecken
GB1383194A (en) * 1970-10-08 1975-02-05 Platt International Ltd Open-end spinning apparatus
US4693105A (en) 1983-10-11 1987-09-15 Lee Jr Roy Method of and apparatus for straightening, swaging, and threading a pipe
DE3545506A1 (de) * 1985-12-20 1987-07-02 Man Technologie Gmbh Werkzeug zum drueckwalzen von hohlzylindrischen werkstuecken
US6442988B1 (en) * 2001-05-01 2002-09-03 Alcan International Limited Methods of spin forming initially cylindrical containers and the like
EP1283333A1 (fr) * 2001-08-10 2003-02-12 Leico GmbH & Co. Werkzeugmaschinenbau Procédé pour la production d'un pot catalytique
US20030046803A1 (en) * 2001-08-10 2003-03-13 Ryuichi Kaneko Manufacturing method of cylinder
EP2210682A1 (fr) 2009-07-09 2010-07-28 Leifeld Metal Spinning GmbH Méthode et appareil de fluotournage

Also Published As

Publication number Publication date
ES2388122T3 (es) 2012-10-09
ES2388122T5 (es) 2017-05-05
EP2314395B1 (fr) 2012-05-16
EP2314395B2 (fr) 2016-11-02

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