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EP2343138B1 - Dispositif et procédé destinés au formage de pièces - Google Patents

Dispositif et procédé destinés au formage de pièces Download PDF

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Publication number
EP2343138B1
EP2343138B1 EP20100000210 EP10000210A EP2343138B1 EP 2343138 B1 EP2343138 B1 EP 2343138B1 EP 20100000210 EP20100000210 EP 20100000210 EP 10000210 A EP10000210 A EP 10000210A EP 2343138 B1 EP2343138 B1 EP 2343138B1
Authority
EP
European Patent Office
Prior art keywords
shaping
tool
shaping tool
preform
tools
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.)
Active
Application number
EP20100000210
Other languages
German (de)
English (en)
Other versions
EP2343138A1 (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.)
Repkon Machine and Tool Industry and Trade Inc
Original Assignee
Repkon Machine and Tool Industry and Trade Inc
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
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Application filed by Repkon Machine and Tool Industry and Trade Inc filed Critical Repkon Machine and Tool Industry and Trade Inc
Priority to EP20100000210 priority Critical patent/EP2343138B1/fr
Priority to ES10000210.4T priority patent/ES2543005T3/es
Priority to CN201180004696XA priority patent/CN102712023A/zh
Priority to PCT/EP2011/000035 priority patent/WO2011085948A1/fr
Priority to US13/521,298 priority patent/US10124388B2/en
Publication of EP2343138A1 publication Critical patent/EP2343138A1/fr
Application granted granted Critical
Publication of EP2343138B1 publication Critical patent/EP2343138B1/fr
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
    • B21B17/02—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
    • B21B17/02—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length
    • B21B17/04—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length in a continuous process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
    • B21B17/02—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length
    • B21B17/06—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length in a discontinuous process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
    • B21B17/08—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel having one or more protrusions, i.e. only the mandrel plugs contact the rolled tube; Press-piercing mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B23/00—Tube-rolling not restricted to methods provided for in only one of groups B21B17/00, B21B19/00, B21B21/00, e.g. combined processes planetary tube rolling, auxiliary arrangements, e.g. lubricating, special tube blanks, continuous casting combined with tube rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions

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 8.
  • a workpiece is set in rotation and then formed by rolling or rolling from outside to the workpiece.
  • these workpieces are designed as rotationally symmetrical hollow body.
  • the hollow bodies may have unilaterally closed bottoms.
  • this transformation takes place in such a way that the outer forming rollers press the shell of the hollow body-shaped workpiece against an internal mandrel, so that the material is made to flow within a forming zone between the forming tools axially, radially and tangentially.
  • the wall thickness of the shell is reduced.
  • the reshaped hollow body is guided over its entire length on the inner mandrel, so that at least 50% of the finished workpiece are on the inner mandrel after the forming. Depending on the process, 100% of the length of the workpiece may also be on the inner mandrel.
  • the pressing of the material against the inner mandrel during the forming has the disadvantage that a very high friction arises between the inner surface of the workpiece and the surface of the inner mandrel.
  • the friction in turn leads to adverse heating of the workpiece and inner mandrel.
  • the wear of the surface during the forming process due to the friction stress.
  • the ideal outer diameter of the inner mandrel must be found by experiments, which makes expensive subsequent corrections to the outer diameter of the inner mandrel required.
  • the production of workpieces with different inner diameters at different wall thicknesses within a workpiece with an internal mandrel is excluded.
  • a split internal mandrel which is attached to each of the main spindle and tailstock spindle, is required.
  • such a device with split internal mandrel is expensive.
  • the possible contour of the workpiece is also limited, since even a split mandrel allows only a limited design freedom of the inner contour of the workpiece to be formed.
  • a device for processing a preform designed as a rotationally symmetrical hollow body.
  • the processing is directed to the generation of different in the longitudinal direction of the preform wall thickness ranges.
  • an internal profiling is performed on the inside of the preform.
  • the outer surface of the preform remains unprocessed by the preform is placed in a die surrounding the preform on the outside.
  • the matrix can be lighter Removal be divided into two, so that at least one half of the die is radially positioned relative to the longitudinal direction. In this way, the preform can be supported against the die during its machining with the outer surface.
  • the device has an internal forming tool which comprises a mandrel rod rotatable about its longitudinal direction.
  • the mandrel In order to carry out a profiling on the inside of the preform, the mandrel on a arranged in the region of its end tool which has individual rolling elements. Said rolling elements are radially displaceable with respect to the longitudinal direction to allow a change in diameter of the tool.
  • the GB 2 184 676 A discloses a device which is provided for processing rotationally symmetrical hollow bodies.
  • the aim is to reduce the wall thickness of the hollow body in sections.
  • the device has two outer forming tools and an inner forming tool.
  • the forming tools have flow-forming rollers, which are pressed simultaneously from the inside and the outside of the hollow body against the wall of the hollow body.
  • the hollow body itself is clamped during its processing in a holder end and rotated about the tool axis, while its opposite end is free.
  • the longitudinal axis of the hollow body and tool axis are congruent.
  • the forming tools can be moved from the free end of the hollow body simultaneously beginning parallel to the tool axis.
  • the wall of the hollow body is gradually squeezed by those the wall between them Tapered rolls tapered.
  • the flow-forming rollers are arranged in radially opposite the tool axis slidable brackets.
  • the wall of the hollow body is tapered in two stages by a fixed offset of the respectively corresponding pairs of spinning rolls.
  • the object of the invention is to provide a device and a method for processing a running as a rotationally symmetrical hollow body preform, wherein the processing extends to the possible change in wall thickness and the outer and inner diameter of the preform and the device and the method control of possible Allow elongation of the preform over its processing.
  • the device has at least one outer forming tool and a main spindle as well as an inner forming tool rotatable about a main machine axis and mounted coaxially to the machine main axis of the device.
  • the axis of the main spindle is the machine main axis.
  • the inner forming tool is fastened to a holder which can be displaced in the axial longitudinal direction and which can itself be rotatably mounted with or independently of the inner forming tool.
  • the at least one outer forming tool has a number of outer forming rollers, which can be radially moved and positioned in accordance with a predetermined workpiece contour and which act on the outer surface of the preform from the outside in the region of the inner forming tool.
  • the preform is received by a pick-up device, which is preferably simultaneously a centering device that also centers the preform.
  • an axially movable main spindle box with a driven driver and a tailstock with the trained as a centering pickup device and a clamping device with a centrally guided to the machine main axis Andrückverinrung provided. These are designed to keep the preform centered between the driver and the centering piece and to axially clamp.
  • the main spindle body with rotating main spindle and the preform and the tailstock form a unit that can be moved together by the axial force of a arranged on the main spindle box feed device with a controlled feed in the axial direction relative to the outer forming tools.
  • the inner forming tool is provided with an outer contour in the form of an axially profiled outer contour, which allows to specify the axial position of the forming zone on the mecanicumformwerkmaschine Weg by the axial positioning of the outer forming tools relative to the mecanicumformwerkmaschinemaschine and thus due to Contouring of the inner forming tool to specify the inner diameter of the workpiece by the relative axial position of the outer forming tools and the mecanicumformwerkmaschines each other. Due to the radial positionability of the outer forming tools, the outer workpiece diameter and thus the wall thickness at each position along the machine main axis x can be predetermined in addition to the inner workpiece diameter.
  • the inner forming tool 9 preferably consists essentially of an inner forming roller or has at least one roller which represents the element of the inner forming tool 9 that acts on the workpiece 4 from the inside.
  • the outer contour 9.2 of the inner forming tool 9 can be cylindrical, conical, convex or concave, depending on how the workpiece 4 to be formed requires it.
  • the forming zone migrates in the axial direction on the surface contour of the mecanicumformwerkmaschinections 9.
  • the relative position can be chosen so that a region of the outer contour 9.2 of the inner forming tool 9 always engages the forming zone, in which the effective outer diameter of the inner forming tool 9 is equal to or minimally smaller than the desired inner diameter of the workpiece 4 at the respective position.
  • the inner forming roller or the inner forming tool 9 is guided axially to the position of the outer forming rollers 8 by a holder 5 centrally in the main spindle 1.1 and infinitely movable in relation to the outer forming rollers 8.
  • the inner forming roller or the inner forming tool 9 and the outer forming rollers 8 can be guided in a constant axial position to each other during the forming.
  • the inner forming roller or the inner forming tool 9 moves axially relative to the outer forming rollers 8 until the desired inner diameter at the respective point of the workpiece 4 is reached.
  • the preform 3 is kept centered by a driven carrier 11 of the axially movable main spindle box 1 and clamped axially with the centering piece 7 of the tailstock 2.
  • a suitable tensioning device 14 which is preferably a pressure cylinder, is provided.
  • the outer forming tools 8 may be radially guided in a housing, not shown, and may, preferably by means of CNC axes, which specify the radial position of the outer forming tools 8, follow predetermined travel movements. In this case, the outer contour of the desired workpiece 4 results from the radial positions at the respective axial position of the preform 3.
  • the number of possible outer forming tools 8 results from the geometric outer dimensions of the forming tools 8 in relation to the outer diameter of the workpiece 4.
  • the maximum diameter of the mecanicalmaschineschwmaschines 9 is limited by the inner diameter of the preform 3.
  • outer forming rollers 8 The axial position of the outer forming rollers 8 to the mecanicumformwerkmaschine 9, for example, by manual adjustment of the outer forming tools 8 and with each other be matched.
  • these outer forming rollers 8 can be in the axial position in fixed position to each other, preferably at least as long as the desired contouring of the workpiece 4 requires no adjustment of the axial positions of individual forming tools to each other during the forming.
  • the clamped preform 3 can be centered by the driver 11 of the main spindle 1.1 and / or the internal forming tool 9.
  • the tension can be effected by a pressure device 14, for example a pressure cylinder, of the tailstock 2.
  • the outer Umformtechnikzuge 8 can be moved back to an initial position.
  • the inner forming tool 9 is located axially in the forming position in the area of the outer forming tools 8.
  • the unit formed by the bias can now be moved axially by the feed device 15 of the main spindle box 1, which is preferably designed as a feed cylinder against the pressure of the pressure device 14 in the forming position.
  • the unit may already be offset in rotation about the main machine axis x or only be.
  • the inner forming tool 9 can stand axially in forming position to the outer forming rollers 8.
  • the outer forming tools 8 can then be moved radially in the forming position.
  • Main spindle box 1 with rotating main spindle 1.1, preform 3 and tailstock 2 form such a unit, which together by the axial force of the feed device 15, at which is preferably a feed cylinder, can be moved with a controlled feed in the axial direction relative to the outer forming tools 8.
  • the forming tools 8 As soon as the forming tools 8 are in the forming position, they can cause the material of the wall thickness W0 of the preform 3 to flow in the radial, tangential and axial directions due to the radial contact pressure of the outer forming tools 8 and the resistance of the inner forming tool 9.
  • the radial distance of the region 9.1 of the outer contour 9.2 of the inner forming tool 9 acting on the inner contour of the workpiece 4 and the area of the outer forming tools 8 acting on the outer contour of the workpiece 4 to one another give the wall thickness W1 of the workpiece 4 to be formed in the respective axial position the preform 3 before.
  • the desired outer diameter with the predetermined wall thickness W1 can form in this axial position.
  • the inner diameter of the workpiece 4 to be produced is predetermined in each axial position of the workpiece 4 by the contact diameter 9.1 of the area of the outer contour 9.2 of the inner forming tool 9 acting on the contour of the workpiece 4 from the machine main axis x in the respective axial one Position results.
  • the pressure of the pressing device 14 which is preferably a pressure cylinder, press back.
  • the pressure device 14 is designed so that the back pressure is regulated and / or controllable.
  • a Andschreibverinrung 10 is provided, which is preferably guided centrally to the main axis.
  • the outer diameter of the workpiece 4 to be produced with the wall thickness W1 is predetermined at the respective axial position of the workpiece 4 by the respective radial position and dimensioning of the outer forming tools 8.
  • the wall thickness W1 of the workpiece 4 to be produced results at the respective axial position of the workpiece 4 through the contact diameter 9.1 of the internal forming tool 9.
  • the contact diameter 9.1 and thus the defined area of the outer contour 9.2 of the inner forming tool 9 acting on the inner contour of the workpiece 4 to be formed changes, with the result that the wall thickness W1 of the formed workpiece 4 changes.
  • the contact diameter 9.1 of the inner forming tool 9 results as a constant inner diameter.
  • the inner diameter is smaller when the contact diameter 9.1 becomes smaller, that is, the axial position of the mecanicumformwerkmaschines 9 relative to the axial position of the outer forming tools 8 changes such that the forming zone on the outer contour 9.2 of mecanicumformwerkmaschines in an area with smaller, on the Shapes inner contour of the workpiece 4 attacking, effective tool diameter.
  • a greater wall thickness can be formed without the outer forming rollers 8 changing their radial position.
  • the inner diameter becomes larger as the contact diameter 9.1 becomes larger, i. the axial position of the inner forming tool 9 relative to the axial position of the outer forming tools 8 changes in such a way that the forming zone on the outer contour 9.2 of the inner forming tool moves into an area with an effective tool diameter acting on the inner contour of the workpiece 4.
  • the molded wall thickness W1 can be reduced without the outer forming tools 8 changing their radial position.
  • the outer forming rollers 8 also change their radial position to a larger shaped outer diameter corresponding to the inner diameter of the workpiece 4 resulting from the new axial relative position of the inner forming roller 9 due to the outer contour 9.2 of the inner forming tool 9, then with a constant wall thickness a larger outer diameter than before Changing the radial position of the outer forming rollers 8 and the axial position of the inner forming roller 9 are formed.
  • the outer forming tools 8 can go back to the starting position. Subsequently, the unit of main spindle box 1, tailstock and finished part 4 can go back to the unloading position. The finished workpiece 4 can now be relaxed and removed.
  • the inner forming tool 9 it is furthermore possible for the inner forming tool 9 to have a shape on the inner contour of the workpiece 4, which makes it possible to contour the inner contour not only axially but also in the circumferential direction.
  • Such circumferential inner contouring 4.1 can be, for example, axially extending inner ribs.
  • One possibility of realizing such an inner forming tool is a forming tool, preferably a roller, with a surface contoured on the inner contour of the workpiece 4 in the circumferential direction.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Claims (10)

  1. Dispositif de formage d'une préforme (3) en forme de corps creux, symétrique en rotation, avec une broche principale (1.1) dont l'axe est l'axe principal (x) de la machine, et avec au moins un outil de formage extérieur (8) qui présente plusieurs rouleaux de formage extérieurs pouvant être positionnés radialement ou déplacés radialement conformément à un contour de la pièce à usiner (4), ainsi qu'avec un outil de formage intérieur (9), qui est fixé sur un support (5) déplaçable dans une direction longitudinale axiale, et est monté à rotation autour de l'axe principal (x) de la broche principale (1.1) et coaxialement à celle-ci, sachant que les rouleaux de formage de l'outil de formage extérieur (8) sont conçus pour attaquer, de l'extérieur, la surface latérale de la préforme (3), dans la région de l'outil de formage intérieur (9),
    caractérisé en ce que
    sont prévues une poupée de broche principale (1), qui peut être déplacée axialement et comprend un entraîneur (11) commandé, ainsi qu'une contre-poupée (2) avec un élément réalisé sous la forme d'une pièce de centrage (7) et un dispositif de serrage (14) comprenant un prolongement presseur (10) qui est centré sur l'axe principal (x) de la machine, lesdites poupées étant conçues pour maintenir la préforme (3) centrée entre l'entraîneur (11) et la pièce de centrage (7) et pour la serrer axialement de telle manière que la poupée de broche principale (1), avec broche principale (1.1) en rotation, la préforme (3) et la contre-poupée (2) forment, en raison de la précontrainte, une unité qui peut être conduite, par la force axiale d'un dispositif d'avance (15), aménagé sur la poupée de broche principale (1) avec une avance réglée puisse être déplacée dans la direction axiale par rapport aux outils de formage extérieurs (8), sachant que l'outil de formage intérieur (9) présente un contour extérieur (9.2) profilé axialement, lequel est conçu pour mettre à disposition différents diamètres d'outil actifs, sachant que l'outil de formage intérieur (9) peut être déplacé axialement ou positionné axialement par rapport à la position des outils de formage extérieurs (8) pour prédéterminer la position axiale d'une zone de formage sur l'outil de formage intérieur (9), entre l'outil de formage intérieur (9) et les outils de formage extérieurs (8), par le positionnement axial des outils de formage extérieurs (8) par rapport à l'outil de formage intérieur (9), de telle manière que, en raison des différents diamètres actifs du contour extérieur (9.2) de l'outil de formage intérieur (9), un diamètre intérieur de la pièce à usiner (4) soit prédéterminée par la position axiale relative des outils de formage extérieurs (8) et du l'outil de formage intérieur (9) les uns par rapport à l'autre.
  2. Dispositif selon la revendication 1,
    caractérisé en ce que,
    pendant le formage de 1 préforme (3), l'outil de formage intérieur (9) peut être déplacé axialement ou positionné axialement par rapport à la position des outils de formage extérieurs (8)
  3. Dispositif selon revendication 1 ou 2,
    caractérisé en ce que
    l'outil de formage intérieur (9) présente un contour extérieur bombé.
  4. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce que
    le contour extérieur (9.2) de l'outil de formage intérieur (9) présente un ou plusieurs talons cylindriques et / ou un ou plusieurs points de transition coniques, concaves et / ou convexes.
  5. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce que
    l'outil de formage intérieur (9) présente une surface à contour périphérique qui attaque le contour intérieur de la pièce à usiner (4).
  6. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce que
    l'outil de formage intérieur (9) est composé d'une pluralité de profils et / ou de contours extérieurs.
  7. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce que
    l'outil de formage intérieur (9) présente au moins un rouleau de formage qui est monté de préférence coaxialement à l'axe principal (x) de la machine.
  8. Procédé de fabrication de pièces à partir d'une préforme (3), qui est réalisée en tant que corps creux, en particulier au moyen d'un dispositif selon l'une des revendications précédentes, lequel comprend une broche principale (1.1) dont l'axe est l'axe principal (x) de la machine, sachant qu'une préforme (3) est faonnée par la coopération d'un outil de formage intérieur (9), qui est fixé sur un support (5) pouvant être déplacé dans la direction longitudinale axiale et est monté à rotation autour de l'axe principal (x) de la broche principale (1.1) et coaxialement par rapport à celle-ci, et d'au moins un outil de formage extérieur (8), qui présente plusieurs rouleaux de formage extérieurs qui attaquent, de l'extérieur, la surface latérale de la préforme (3), dans la région de l'outil de formage intérieur (9), sachant que la pression exercée sur la paroi latérale de la préforme (3), entre les outils de formage extérieurs (8) et l'outil de formage intérieur (9), fait couler la matière de telle manière que la préforme (3) en rotation prend un contour qui est prédéterminé par les outils de formage extérieurs (8) et l'outil de formage intérieur (9), contour dont l'épaisseur est déterminée par la position radiale des rouleaux de formage extérieurs des outils de formage extérieurs (8) et de l'outil de formage intérieur (9) les uns par rapport à l'autre, sachant que les rouleaux de formage extérieurs sont positionnés radialement ou déplacés radialement adéquatement au contour prédéterminé de la pièce (4) à former,
    caractérisé en ce que
    la préforme est maintenue, centrée et serrée axialement, entre un entraîneur (11) commandé d'une poupée de broche principale (1), qui peut être déplacée axialement, et un dispositif de réception de contre-poupée (2), réalisé en forme de pièce de centrage (7), de telle manière que la poupée de broche principale (1), avec broche principale (1.1) en rotation, ainsi que la préforme (3) et la contre-poupée (2) forment, en raison de la précontrainte, en commun avec un dispositif de serrage (14) comprenant un prolongement presseur (10) centré sur l'axe principal (x) de la machine, une unité qui, par la force axiale d'un dispositif d'avance (15), aménagé sur la poupée de broche principale (1), puisse être déplacée, avec une avance réglée, dans la direction axiale par rapport aux outils de formage extérieurs (8), sachant que l'outil de formage intérieur (9) présente un contour extérieur (9.2) profilé axialement de sorte que l'on dispose de différents diamètres d'outil actifs, et qu'il peut être déplacé axialement ou positionné axialement par rapport à la position des outils de formage extérieurs (8) pour prédéterminer la position axiale d'une zone de formage sur l'outil de formage intérieur (9), entre l'outil de formage intérieur (9) et les outils de formage extérieurs (8), par le positionnement axial des outils de formage extérieurs (8) par rapport à l'outil de formage intérieur (9), de telle manière que, en raison des différents diamètres actifs du contour extérieur (9.2) de l'outil de formage intérieur (9), un diamètre intérieur de la pièce à usiner (4) soit prédéterminée par la position axiale des outils de formage extérieurs (8) et de l'outil de formage intérieur (9) les uns par rapport à l'autre.
  9. Procédé selon la revendication 8,
    caractérisé en ce que,
    lors de la rotation de la préforme (3), le cours de l'épaisseur de paroi de la pièce à usiner (4) est déterminé par l'intervalle entre les outils de formage extérieurs (8) et le diamètre de contact (9.1) de l'outil de formage intérieur (9).
  10. Procédé selon revendication 8 ou 9,
    caractérisé en ce que,
    lors de la rotation de la préforme (3), le cours de l'épaisseur de paroi de la pièce à usiner (4) est déterminée par la position radiale relative des outils de formage extérieurs (8) par rapport au diamètre de contact (9.1) de l'outil de formage intérieur (9), sachant que ledit diamètre de contact (9.1) résulte, en raison du contour extérieur (9.2) de l'outil de formage intérieur (9), de la position axiale relative de celui-ci par rapport aux outils de formage extérieurs (8).
EP20100000210 2010-01-12 2010-01-12 Dispositif et procédé destinés au formage de pièces Active EP2343138B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP20100000210 EP2343138B1 (fr) 2010-01-12 2010-01-12 Dispositif et procédé destinés au formage de pièces
ES10000210.4T ES2543005T3 (es) 2010-01-12 2010-01-12 Dispositivo y procedimiento para el moldeado de piezas de trabajo
CN201180004696XA CN102712023A (zh) 2010-01-12 2011-01-07 用于成形工件的装置和方法
PCT/EP2011/000035 WO2011085948A1 (fr) 2010-01-12 2011-01-07 Dispositif et procédé de façonnage de pièces
US13/521,298 US10124388B2 (en) 2010-01-12 2011-01-07 Device and method to shape worked pieces

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EP20100000210 EP2343138B1 (fr) 2010-01-12 2010-01-12 Dispositif et procédé destinés au formage de pièces

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EP2343138A1 EP2343138A1 (fr) 2011-07-13
EP2343138B1 true EP2343138B1 (fr) 2015-04-22

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EP (1) EP2343138B1 (fr)
CN (1) CN102712023A (fr)
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EP3025802B1 (fr) 2014-11-28 2021-05-12 REPKON Machine and Tool Industry and Trade Inc. Dispositif et procédé pour le fluotournage des pièces à usiner

Citations (1)

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Publication number Priority date Publication date Assignee Title
EP2210682A1 (fr) 2009-07-09 2010-07-28 Leifeld Metal Spinning GmbH Méthode et appareil de fluotournage

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DE3545506A1 (de) * 1985-12-20 1987-07-02 Man Technologie Gmbh Werkzeug zum drueckwalzen von hohlzylindrischen werkstuecken
JP4354133B2 (ja) * 2001-08-10 2009-10-28 カヤバ工業株式会社 シリンダの加工方法
DE102007002228A1 (de) * 2007-01-10 2008-07-31 Benteler Automobiltechnik Gmbh Verfahren und Vorrichtung zur Herstellung von innenprofilierten Rohren
JP5435190B2 (ja) * 2007-03-30 2014-03-05 日立オートモティブシステムズ株式会社 管体の加工方法及びシリンダ装置の製造方法
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

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Publication number Priority date Publication date Assignee Title
EP2210682A1 (fr) 2009-07-09 2010-07-28 Leifeld Metal Spinning GmbH Méthode et appareil de fluotournage

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WO2011085948A1 (fr) 2011-07-21
WO2011085948A8 (fr) 2012-06-07
EP2343138A1 (fr) 2011-07-13
ES2543005T3 (es) 2015-08-13
CN102712023A (zh) 2012-10-03
US20120285215A1 (en) 2012-11-15
US10124388B2 (en) 2018-11-13

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