EP3119539B1 - Outil de formage d'une pièce et dispositif de déformation d'une pièce avec un tel outil - Google Patents

Outil de formage d'une pièce et dispositif de déformation d'une pièce avec un tel outil Download PDF

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Publication number
EP3119539B1
EP3119539B1 EP15712108.8A EP15712108A EP3119539B1 EP 3119539 B1 EP3119539 B1 EP 3119539B1 EP 15712108 A EP15712108 A EP 15712108A EP 3119539 B1 EP3119539 B1 EP 3119539B1
Authority
EP
European Patent Office
Prior art keywords
tool
clamping
compressing head
unit
shaping
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
EP15712108.8A
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German (de)
English (en)
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EP3119539A1 (fr
Inventor
Gerd Berghaus
Harald Pott
Heinz-Werner Papenhoff
Alexander Erbe
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.)
Voss Fluid GmbH
Original Assignee
Voss Fluid 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 Voss Fluid GmbH filed Critical Voss Fluid GmbH
Priority to PL15712108T priority Critical patent/PL3119539T3/pl
Publication of EP3119539A1 publication Critical patent/EP3119539A1/fr
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Publication of EP3119539B1 publication Critical patent/EP3119539B1/fr
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00Tools as parts of machines covered by this subclass
    • B21D37/10Die sets; Pillar guides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D17/00Forming single grooves in sheet metal or tubular or hollow articles
    • B21D17/02Forming single grooves in sheet metal or tubular or hollow articles by pressing
    • B21D17/025Forming single grooves in sheet metal or tubular or hollow articles by pressing by pressing tubes axially
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D19/00Flanging or other edge treatment, e.g. of tubes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00Tools as parts of machines covered by this subclass
    • B21D37/04Movable or exchangeable mountings for tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D41/00Application of procedures in order to alter the diameter of tube ends
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D41/00Application of procedures in order to alter the diameter of tube ends
    • B21D41/04Reducing; Closing

Definitions

  • the present invention relates to a device for deforming a workpiece with a forming assembly which can be actuated by the pressure of a fluid and with a clamping assembly which is arranged on a common longitudinal axis and can be actuated by the pressure of the fluid.
  • a forming tool for a workpiece in particular for the plastic forming of a pipe end, is used therein, with a clamping device for the workpiece comprising a plurality of clamping segments and with an upsetting head, which in particular has a recess on one side for forming a contour of the workpiece and on the opposite Side has a fastener for connection to a forming piston of a device for deforming the workpiece.
  • a forming tool and a device of the type mentioned are from the EP 1 494 827 B1 known.
  • This document describes a device for shaping workpieces, in particular for plastically shaping pipe ends, with a shaping assembly actuated by the pressure of a fluid - referred to there as the shaping unit - and with a clamping assembly arranged on a common longitudinal axis and actuated by the pressure of a fluid - there referred to as a biasing unit - wherein conical clamping elements are provided for the workpiece.
  • a tool set is used for the reshaping, which consists of a swaging head as swaging tool and of a clamping device to which the clamping elements belong.
  • the upsetting head contains one on one side Well, which forms a counter contour of the pipe contour to be shaped, and on the opposite side a fastening means, which at a corresponding connection point of a piston of the forming assembly, for. B. can be attached in a T-slot.
  • the clamping device is formed in particular from a plurality, preferably four, ring-shaped segments which function as clamping jaws. These are usually guided over cylindrical pins and held in an open position in the unloaded state by means of compression springs arranged between them. They cooperate with a conical surface in an opening of a yoke plate of the forming assembly of the forming device and also have conical outer surfaces for this purpose. With their mostly slightly roughened or toothed inside, the clamping jaws press on the tube when clamping.
  • the process of tool changeover can be characterized in a structurally simple design by the following steps: her cylindrical, the upsetting head and the clamping jaws in their working position surrounding the housing of the forming device by pulling by hand, inserting or changing the clamping device, inserting or changing the upsetting tool, z. B. by inserting into the T-slot, closing the tool change slide valve by pushing it shut by hand.
  • the process represents an already optimized variant of a comparatively more complex known process of tool retrofitting, for example in a device according to the EP 1 311 358 B1 is practical and, in particular to ensure a high level of assembly security, comprises the following steps: screwing on a housing of the forming device for the forming head and the clamping jaws, which is of truncated cone shape, inserting or changing the clamping device, screwing in or changing the upsetting tool using a special key, resealing and screwing the housing.
  • the jaw segments will fall apart since they are usually held together only by a rubber ring during assembly.
  • the change is time-consuming due to the required use of tools.
  • a disadvantage of both variants is that due to the space required for the tool change, the forming area is relatively large, which leads to restrictions on the possible bending geometries of a pipe to be formed, and that there is a risk of confusion between pairs of upsetting heads and clamping devices that are assigned to one another.
  • the DE 100 40 595 A1 describes a generic device and a method for reshaping an end region of a workpiece, in particular for cold press-reshaping a tube end region, wherein a first hydrodynamically actuatable force transmission element for clamping the workpiece and a second hydrodynamically actuated force transmission element, by the force action of which the reshaping is achieved, are provided.
  • the shaping device in its specific embodiment has a two-part housing which is formed from a base housing and from a receiving housing.
  • the base housing has a central cylindrical bore in which an outer piston and an inner piston are guided.
  • a compression tool can thus be connected via a rotary lock.
  • the receiving housing forms a receiving space for clamping jaws, which can be actuated by actuating the outer piston.
  • the assembly of the forming tool is not described in detail, but appears to be complex from an assembly point of view when analyzing the drawing figures.
  • US 5,134,872 A describes a generic hydraulic tensioning device for expanding a pipe end.
  • the device has a pipe receiving end into which the pipe to be expanded is inserted.
  • a chuck contains a main piston which can be moved back and forth under the action of the fluid in the direction of the pipe receiving end.
  • At one end of the main piston there is a ball attached by a screw to expand the pipe.
  • the collets are located within a housing and are driven by an actuator, which in turn is screwed to a hollow actuating piston, in the interior of which the main piston slides.
  • the assembly and disassembly effort appears disadvantageously large due to the large number of individual parts to be connected to one another.
  • the British patent application GB 2 352 665 A relates to a compression tool, in particular for providing a compression end on a pipe in order to provide a connection for an extension piece.
  • a portable tool In order to attach such an extension piece to a pipe on site, a portable tool must first be brought to the pipe.
  • a point load was used prior to the registration of the property right in order to secure the pipe against movement during the upsetting, the point load frequently damaging the pipe itself.
  • the task associated with the subject of GB 2 352 665 A was to avoid this disadvantage.
  • a construction is described which has a housing with a bore at one end of the housing, which leads to a cavity which extends to the opposite end of the housing, and a cap.
  • a clamping device is provided at the end of the housing in its cavity, which is suitable for holding a pipe or a line in one position in order to produce a compressed end thereon.
  • a recess is provided in the clamping device, which cooperates with the pipe or line end when it is inserted through the clamping device, and which enables the formation of the compressed end.
  • the tool comprises an upsetting element which interacts with the cap and with the end of the pipe or the line engages, whereby the compressed end is made at the end of the pipe or the line.
  • the present invention has for its object to provide a device of the type mentioned, which are characterized by a low assembly effort for a tool change while ensuring a high level of assembly security and avoid the disadvantages of the prior art described above.
  • the device for deforming a workpiece with a forming assembly which can be actuated by the pressure of a fluid and with a clamping assembly which is arranged on a common longitudinal axis and can be actuated by the pressure of the fluid
  • the device being characterized by an exchangeable tool unit and by a cylinder unit which is designed as a preassembled unit which can be handled separately from the interchangeable tool unit, the interchangeable tool unit being a shaping tool for the workpiece, which is arranged on the common longitudinal axis of the shaping assembly and the clamping assembly, and a clamping device with a plurality of clamping segments for the workpiece and comprises an upsetting head, which on one side has a recess for forming a contour of the workpiece to be formed and on the opposite side a fastening means for connection to a forming piston of the U mform assembly, wherein the upsetting head and the clamping device in the forming tool forming the tool unit are axially movable relative to each
  • the upsetting head and the clamping device of the forming tool are axially movable relative to one another in one single tool unit are structurally connected to each other. Furthermore, in the device according to the invention, the forming tool is arranged on the common longitudinal axis of the forming assembly and clamping assembly.
  • the assembly or a tool change in the deformation device according to the invention is very simple, in that the tool unit comprising the upsetting head and the clamping device is assembled or replaced as a whole in or on a complementary cylinder unit.
  • the cylinder unit is preferably designed as a preassembled unit with a housing or at least with a housing part that can be handled separately from the forming tool and comprises at least one forming piston which is guided in an axially movable manner in a piston chamber.
  • the cylinder unit has a tool holder, which in turn is connected to the forming piston via suitable connecting means, for example via one or more screws.
  • the advantage of the invention is, in addition to a simplified process of the tool change, the avoidance of a risk of confusion of parts that belong to one another in pairings, in particular in terms of size relative to the pipe geometry, such as the outside and inside diameter of the pipe, selectable associated clamping segments and upsetting heads.
  • Another advantage is the possibility of designing the forming tool unit according to the invention in an extremely compact design, which makes it possible to realize a larger number of possible geometries in the case of tube forming.
  • the upsetting head and clamping device As far as the axial mobility of the upsetting head and clamping device is concerned, this can be done e.g. B. consist in that both parts are axially movable, but in particular also in that only the upsetting head is axially movable, the clamping device, in particular its clamping segments, at least in each case to have a radial mobility to perform its function.
  • a device 1 according to the invention for deforming a workpiece 2 which - as in FIG Fig. 5 shown - can preferably be a tube, a forming assembly actuated by the pressure of a fluid F and a clamping assembly arranged on a common longitudinal axis XX and actuated by the pressure of the fluid F.
  • a forming tool 3 designed according to the invention as a single tool unit ( 2, 3 ) and partially in a cylinder unit 4 ( Fig. 1 ), which receives the forming tool 3 according to the invention after its assembly and forms the forming device 1 according to the invention together with it.
  • the forming assembly comprises, as the main component, a forming piston 5 arranged in the cylinder unit 4, which is longitudinally displaceable under the pressure of a fluid F in a forming piston space 6 along the longitudinal axis X-X.
  • the forming piston 5, as can be seen from the drawing, is designed as a stepped solid cylinder.
  • the forming assembly comprises a tool holder 7, likewise arranged in the cylinder unit 4, which is connected to the forming piston 5, in particular via a cylinder head screw 8.
  • the forming assembly comprises a compression head 9 belonging to the forming tool 3 according to the invention.
  • This compression head 9 has, in particular on one end face, a depression 10 for forming a contour of the workpiece 2 to be shaped and on the opposite side a fastening means 11 for in the case shown, indirect connection to the forming piston 5 via the tool holder 7.
  • the basic shape of the upsetting head 9 is preferably also fully cylindrical.
  • the fastening means 11 is formed in that the upsetting head 9 has a circumferential groove 12, so that its contour is T-shaped in the region of its end face, as seen in longitudinal section. With this T-shaped fastening means 11, the upsetting head 9 can engage in a corresponding — ie, shape-adapted — T groove 13 of the tool holder 7.
  • the main component of the tensioning assembly is a tensioning piston 15 which is arranged in the cylinder unit 4 and which is longitudinally displaceable under the pressure of the fluid F in a tensioning piston space 16 along the longitudinal axis X-X.
  • the tensioning piston 15 is - as can be seen from the drawing - designed as a radially stepped ring cylinder on the outside and inside.
  • the clamping piston 15 circumferentially surrounds the end of the shaping piston 5 which is arranged concentrically with the workpiece 2 and also the tool holder 7 connected to it and is relatively movable with respect to these parts 5, 7.
  • the tensioning piston chamber 16 can be acted upon by the fluid F separately from the shaping piston chamber 6 via a fluid inlet 16a, in contrast to which the shaping piston chamber 6 has two fluid entry points 6a, 6b has - a first fluid entry point 6a for initiating the forming movement and a second fluid entry point 6b for initiating the return movement of the forming piston 5.
  • the tensioning piston 15 does not need to be acted upon by the fluid F to drive its return movement, since it is carried along via a radially inner step 15a when the shaping piston 5 moves back with the tool holder 7 attached to it, and this step 15a axially on a radial projection 7a the tool holder 7 comes to a stop in relation to the forming piston 5.
  • the clamping assembly comprises a clamping device 17 belonging to the forming tool 3 according to the invention, which comprises a plurality of clamping segments 18 arranged in a ring.
  • the clamping device 17 can preferably have four annularly arranged segments 18, which function as clamping jaws which, as is known per se, can preferably be held in an open position in the unloaded state by means of pressure springs arranged between them and not shown in the drawing.
  • the clamping assembly comprises a retaining ring 19, which is also associated with the forming tool 3 according to the invention, at one axial end of which the clamping device 17 rests on its end face, while at its other axial end the upsetting head 9 is axially displaceable, but cannot be lost in the ring interior by this movement being limited on both sides is held.
  • the stops are formed on one side of the upsetting head 9 on the one hand by a radially inner circumferential edge web 19a of the retaining ring 19 and on the other hand by a complementary outer circumferential edge web 9a of the upsetting head 9, and on the other side of the upsetting head 9 on the one hand by a Bottom surface 18a of the clamping segments 18 and, on the other hand, through an annular surface 9b of the upsetting head 9 surrounding the recess 10 to form the workpiece contour.
  • a housing 20 which, in the first embodiment, is of multi-part design and interacts with the parts of the forming assembly as well as the parts of the clamping assembly.
  • the housing 20 in the cylinder unit 4 forms the wall for the forming piston space 6, in which the two fluid entry points 6a, 6b are located, by means of a first hollow-cylindrical housing part 20a.
  • the housing 20 in the cylinder unit 4 forms the wall for the tensioning piston chamber 16 by means of the first housing part 20a, the fluid inlet 16a of the tensioning piston chamber 16 being located therein.
  • the housing 20 forms the wall of the tool unit 3 by means of a second housing part 20b, which is hollow-cylindrical in a first axial section and a hollow truncated cone in a second, adjoining the first tip section.
  • the frustoconical section tapers conically. both inside and outside - pointing the way from the cylinder unit 4.
  • the clamping segments 18 of the clamping device 17 each have a corresponding conical surface 18b on the outside, which bears against the inner conical surface 21 of the second housing part 20b and interacts with it.
  • the housing 20 is preferably also important for the fulfillment of the tensioning function of the tensioning assembly.
  • the second housing part 20b of the housing 20 advantageously fulfills a function with regard to the fact that the upsetting head 9 and the clamping device 17 are structurally connected to one another in a single tool unit 3. From this point of view, it has already been stated in the description of the clamping assembly that the upsetting head 9 is axially displaceable in the interior of the retaining ring 19, but is captive with a stop limitation on both sides.
  • This assembly of upsetting head 9 and retaining ring 19, together with the tensioning device 17, which is preferably not firmly connected to the retaining ring 19, is initially held in a form-fitting manner in the second housing part 20b.
  • the retaining ring 19 is also by a fastening element 22, in particular by an in Fig.
  • the housing 20 has a third housing part 20c which serves to connect the tool unit 3 and the cylinder unit 4 to one another.
  • the housing part 20c is designed in the manner of a union nut, it having an internal thread 24 through which a screw connection 24, 25 can be produced with a circumferential external thread 25 of the cylinder unit 4, as shown in FIG Fig. 5 is shown.
  • a tool change is thus very simple, in that only one tool unit 3 is unscrewed from the cylinder unit 4 and removed from the T-slot 13. Another tool unit 3 can then be reinserted into the T-slot 13 in the next step and screwed onto the cylinder unit 4. How 2 and 3 show, special engagement points 28 for a screwing tool can be provided for this purpose on the third housing part 20c.
  • the illustrated second embodiment of the invention comprises a device 1 according to the invention for deforming a workpiece 2, a forming assembly actuated by the pressure of a fluid F and a clamping assembly arranged on a common longitudinal axis XX and actuated by the pressure of the fluid F, as described above for the first embodiment has been.
  • the shaping tool 3 also has a clamping device 17 for the workpiece 2 with a plurality of clamping segments 18 and an upsetting head 9, which is used to form the contour of the workpiece 2 to be shaped.
  • the upsetting head 9 and the clamping device 17 are structurally connected to one another in a single tool unit 3 so that they can move axially relative to one another.
  • the first difference is in the design of the housing 20, which in the second embodiment is initially shown in simplified form, as the uniform cross-hatching shows. Specifically, however, this housing 20 must consist of at least two components (in Fig. 5 two separating points T1, T2 are provided in the housing 20, that is to say three housing parts), these parts of the housing 20 being screwed together (dash-dotted, axially parallel lines in FIG Fig. 5 ) and cannot be separated from each other when changing tools. It therefore does not - as in the first embodiment - consist of parts 20a, 20b, 20c which can be connected to one another and can be detached for tool change, one of which is assigned to the tool unit 3 and another to the cylinder unit 4.
  • the housing 20, which here can be completely assigned to the cylinder unit 4 has at least one window 30, which allows a tool change remove one tool unit 3 from the cylinder unit 4 and reinsert the other.
  • a tool change remove one tool unit 3 from the cylinder unit 4 and reinsert the other.
  • two diametrically opposite windows 30 are provided in the case shown.
  • Each window 30 is formed by a recess in the jacket of the hollow cylindrical housing 20. The tool change can thus advantageously be implemented without the need to use additional tools.
  • the tool unit 3 of the forming tool 3 according to the invention is not held together by means of a housing part 20b - in particular not the unit comprising the upsetting head 9 and retaining ring 19 with the segments 18 of the clamping device 17 loosely inserted into the housing part 20b - a connection is instead made between them the retaining ring 19 and the segments 18 are provided, in particular as a non-positive and positive connection 8 to 10 becomes clear.
  • the retaining ring 19 has an inner circumferential groove 19b in the region of its axial end facing away from the upsetting head 9, in which the segments 18 are held in a form-fitting manner with a complementary flange shoulder 18d.
  • the segments 18 are pressed centrifugally into the circumferential groove 19b.
  • the segments 18 can be pressed radially inward against the spring force, so that the outside diameter of the clamping device 17 is reduced and this can be inserted into the retaining ring 19b or removed therefrom.
  • This connection is structurally simpler than the cohesion through the housing part 20b in the first embodiment, in which an additional screw connection is provided with the grub screw.
  • Compression head 9 and retaining ring 19 are connected to one another in the same way as in the first embodiment.
  • the tool change in the second embodiment is easier than in the first embodiment.
  • the conical tip section of the housing 20, which is involved in the clamping of the workpiece 2 is not to be grasped by the window 30, but rather the window 30 only begins directly behind the conical section in the axial direction, this results in a somewhat greater axial overall length of the device according to the invention 1 in its second version.
  • the workpiece 2 is then inserted and pretensioned by an axial movement of the clamping cylinder 15, the segments 18 moving radially inwards and holding the workpiece. This state is in Fig. 10 shown. Only then can the actual forming process of the workpiece 2 begin, which - since it represents the main function of the device 1 according to the invention - was described above before the clamping process.
  • the upsetting head 9 does not necessarily have to have an indentation 10 on its one end face for forming a contour of the workpiece 2 to be shaped. There may also be a different contour there. If, however, there is a depression 10, it can be, for example, how Fig. 4 and 5 and 8 to 10 emerges - it should be provided that the bottom surface 10a of the recess 10 is conical. As a result, an automatic adaptation to different pipe diameters and pipe wall thicknesses is advantageously achieved when the workpiece 2 is clamped and formed. For this purpose, a tip angle ⁇ specially matched to the tube geometry can also be provided.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)
  • Gripping On Spindles (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Claims (14)

  1. Dispositif (1) de déformation d'une pièce (2) comprenant un ensemble de formage (5, 6, 7, 8, 9) pouvant être actionné par la pression d'un fluide (F) et un ensemble de serrage (15, 16, 17, 19) disposé sur un axe longitudinal commun (X-X) et pouvant être actionné par la pression du fluide (F), caractérisé par une unité d'outil (3) remplaçable et par une unité de cylindre (4), qui est réalisée sous forme d'unité pré-montée (4) pouvant être manipulée séparément de l'unité d'outil remplaçable (3), l'unité d'outil remplaçable (3) étant un outil de formage (3) pour la pièce (2), lequel est disposé sur l'axe longitudinal commun (X-X) de l'ensemble de formage (5, 6, 7, 8, 9) et de l'ensemble de serrage (15, 16, 17, 19) et comporte un dispositif de serrage (17) doté de plusieurs segments de serrage (18) pour la pièce (2) et une tête de refoulement (9), laquelle comprend, d'un côté, un évidement (10) pour la formation d'un contour à former de la pièce (2) et, du côté opposé, un moyen de fixation (11) pour le raccordement à un piston de formage (5) de l'ensemble de formage (5, 6, 7, 8, 9), la tête de refoulement (9) et le dispositif de serrage (17) étant reliés l'un à l'autre de manière structurale sur la périphérie de manière mobile axialement l'un par rapport à l'autre dans l'outil de formage (3) formant l'unité d'outil (3), et l'unité de cylindre (4) étant réalisée de manière à présenter un boîtier (20) ou au moins une partie de boîtier (20a) et comportant le piston de formage (5) qui est guidé de manière axialement mobile dans une chambre de piston.
  2. Dispositif (1) selon la revendication 1,
    caractérisé en ce que la tête de refoulement (9) est fixée de manière mobile axialement dans une bague de retenue (19) de façon limitée par une butée bilatéralement.
  3. Dispositif (1) selon la revendication 2,
    caractérisé en ce que la limitation par butée de la tête de refoulement (9) pour son mouvement axial dans la bague de retenue (19) est formée, sur l'un des côtés de la tête de refoulement (9), d'une part par une nervure de bord périphérique (19a), située radialement à l'intérieur, de la bague de retenue (19) et d'autre part par une nervure de bord périphérique (9a) complémentaire, située à l'extérieur, de la tête de refoulement (9) et, sur l'autre côté de la tête de refoulement (9) d'une part par une surface de base (18a) des segments de serrage (18) et d'autre part par une surface annulaire (9b) de la tête de refoulement (9) qui entoure un évidement (10) pour la formation du contour de pièce.
  4. Dispositif (1) selon l'une des revendications 1 à 3,
    caractérisé en ce que l'unité d'outil (3) comporte, en plus de la tête de refoulement (9) et du dispositif de serrage (17), au moins une partie de boîtier (20b).
  5. Dispositif (1) selon la revendication 4,
    caractérisé en ce que la tête de refoulement (9) fixée dans la bague de retenue (19) est insérée dans la partie de boîtier (20b) conjointement avec le dispositif de serrage (17), et en ce que la bague de retenue (19) est fixée de manière axialement mobile dans la partie de boîtier (20b).
  6. Dispositif (1) selon la revendication 4 ou 5,
    caractérisé en ce que la bague de retenue (19) est retenue de manière mobile longitudinalement axialement dans la partie de boîtier (20b) au moyen d'un élément de fixation (22), en particulier au moyen d'une vis sans tête, laquelle vient en prise par sa pointe dans une rainure extérieure (23) de la bague de retenue (19).
  7. Dispositif (1) selon la revendication 2,
    caractérisé en ce qu'en plus de la tête de refoulement (9), le dispositif de serrage (17) est également fixé dans la bague de retenue (19).
  8. Dispositif (1) selon la revendication 7,
    caractérisé en ce que la bague de retenue (19) comprend, dans la région de son extrémité axiale opposée à la tête de refoulement (9), une rainure périphérique intérieure (19b), dans laquelle sont retenus de manière fixée par complémentarité de forme dans la direction axiale mais de manière radialement mobile, respectivement les segments de serrage (18) du dispositif de serrage (17) par un rebord formant collerette (18d) complémentaire à la rainure périphérique (19b).
  9. Dispositif (1) selon l'une des revendications 1 à 8,
    caractérisé en ce qu'une surface de base (10a) de l'évidement (10) de la tête de refoulement (9) est de forme conique.
  10. Dispositif (1) selon l'une des revendications 1 à 9,
    caractérisé en ce que le moyen de fixation (11) est formé par un contour en forme de T, vu en coupe longitudinale, de la tête de refoulement (9) dans la région de sa face frontale pour l'entrée en prise dans une rainure en T (13), de forme adaptée, d'un logement d'outil (7) se trouvant sur le piston de formage (5).
  11. Dispositif (1) selon l'une des revendications 1 à 10,
    caractérisé en ce que l'unité de cylindre (4) comprend un/le logement d'outil (7) pour la liaison à l'unité d'outil (3), lequel logement d'outil est relié à un/au piston de formage (5) de l'ensemble de formage (5, 6, 7, 8, 9) en particulier par le biais d'une vis (8), et en ce que l'unité d'outil (3) comprend, sur un côté frontal tourné vers l'unité de cylindre (4), en particulier au niveau de sa tête de refoulement (9), un/le moyen de fixation (11) pour le raccordement au logement d'outil (7).
  12. Dispositif (1) selon l'une des revendications 1 à 11,
    caractérisé en ce que l'unité d'outil (3) peut, pour un montage ou pour le remplacement sur l'unité de cylindre (4), être vissée sur l'unité de cylindre (4), en particulier au moyen d'une/de la partie de boîtier (20c), ou peut être dévissée de l'unité de cylindre (4).
  13. Dispositif (1) selon l'une des revendications 1 à 12,
    caractérisé en ce que le boîtier (20) comporte, dans l'unité de cylindre (4), une/la première partie de boîtier (20a) et, dans l'unité d'outil (3), une/la deuxième partie de boîtier (20b) et une/la troisième partie de boîtier (20c), lesquelles peuvent être reliées de manière amovible les unes aux autres.
  14. Dispositif (1) selon l'une des revendications 1 à 13,
    caractérisé en ce que l'unité d'outil (3) peut, pour un montage ou pour le remplacement sur l'unité de cylindre (4), être insérée dans l'unité de cylindre (4) ou retirée de celle-ci à travers une fenêtre (30) dans un boîtier (20) pour l'ensemble de formage (5, 6, 7, 8, 9) et l'ensemble de serrage (15, 16, 17, 19).
EP15712108.8A 2014-03-20 2015-03-20 Outil de formage d'une pièce et dispositif de déformation d'une pièce avec un tel outil Active EP3119539B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15712108T PL3119539T3 (pl) 2014-03-20 2015-03-20 Narzędzie do obróbki plastycznej przedmiotu obrabianego i urządzenie do kształtowania przedmiotu obrabianego z takim narzędziem

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014103799.5A DE102014103799B4 (de) 2014-03-20 2014-03-20 Umformwerkzeug für ein Werkstück und Vorrichtung zum Verformen eines Werkstücks mit einem derartigen Werkzeug
PCT/EP2015/055878 WO2015140280A1 (fr) 2014-03-20 2015-03-20 Outil de formage d'une pièce et dispositif de déformation d'une pièce avec un tel outil

Publications (2)

Publication Number Publication Date
EP3119539A1 EP3119539A1 (fr) 2017-01-25
EP3119539B1 true EP3119539B1 (fr) 2020-03-11

Family

ID=52737093

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Application Number Title Priority Date Filing Date
EP15712108.8A Active EP3119539B1 (fr) 2014-03-20 2015-03-20 Outil de formage d'une pièce et dispositif de déformation d'une pièce avec un tel outil

Country Status (8)

Country Link
US (2) US10449588B2 (fr)
EP (1) EP3119539B1 (fr)
CN (1) CN106102950B (fr)
BR (1) BR112016017295B1 (fr)
DE (1) DE102014103799B4 (fr)
ES (1) ES2785548T3 (fr)
PL (1) PL3119539T3 (fr)
WO (1) WO2015140280A1 (fr)

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DE102016205217A1 (de) * 2016-03-30 2017-10-05 Siemens Aktiengesellschaft 3D-Messung von länglichen Ausnehmungen, insbesondere Nuten
RU207855U1 (ru) * 2021-08-10 2021-11-22 Публичное акционерное общество "КАМАЗ" Приспособление для развальцовки концов труб
CN114833232B (zh) * 2022-03-31 2024-01-05 深圳市拓普联科技术股份有限公司 自动开槽装置

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Also Published As

Publication number Publication date
WO2015140280A1 (fr) 2015-09-24
CN106102950A (zh) 2016-11-09
DE102014103799B4 (de) 2018-07-05
DE102014103799A1 (de) 2015-09-24
CN106102950B (zh) 2019-11-22
ES2785548T3 (es) 2020-10-07
BR112016017295B1 (pt) 2021-03-09
US20170095851A1 (en) 2017-04-06
US20200001341A1 (en) 2020-01-02
US10449588B2 (en) 2019-10-22
EP3119539A1 (fr) 2017-01-25
PL3119539T3 (pl) 2020-08-24
US11491526B2 (en) 2022-11-08

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