EP3448594B1 - Presse-transfert pourvue d'un serre-flan en c - Google Patents

Presse-transfert pourvue d'un serre-flan en c Download PDF

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Publication number
EP3448594B1
EP3448594B1 EP17725155.0A EP17725155A EP3448594B1 EP 3448594 B1 EP3448594 B1 EP 3448594B1 EP 17725155 A EP17725155 A EP 17725155A EP 3448594 B1 EP3448594 B1 EP 3448594B1
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EP
European Patent Office
Prior art keywords
ram
transfer press
transfer
press
press according
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EP17725155.0A
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German (de)
English (en)
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EP3448594A1 (fr
Inventor
Andreas Steiner
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Fritz Werner Industrie-Ausruestungen GmbH
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Fritz Werner Industrie-Ausruestungen GmbH
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Priority to PL17725155T priority Critical patent/PL3448594T3/pl
Publication of EP3448594A1 publication Critical patent/EP3448594A1/fr
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    • 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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/05—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
    • B21D43/055—Devices comprising a pair of longitudinally and laterally movable parallel transfer bars
    • 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
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/08—Dies with different parts for several steps in a process

Definitions

  • the invention preferably relates to a transfer press for successive reshaping and demolding of workpieces with the aid of upper and lower tools in dies, the upper tools being attached to a ram head, while the lower tools are installed on a tappet foot.
  • the tappet head and the tappet foot are rigidly connected to one another and form a tappet.
  • the invention relates to the field of transfer presses for reshaping workpieces, in particular made of sheet metal.
  • forming belongs to the main group of manufacturing processes and describes the controlled plastic deformation of a solid. Mass and material cohesion are retained.
  • the mechanical processing machines for carrying out the forming process are generally referred to as presses.
  • the deformation process may have to be carried out in several stages in order to produce a workpiece.
  • transfer presses are used, the special feature of which is that the workpiece is automatically transported through the individual forming stages with the help of a transfer system.
  • the drawing punches are usually attached to an upper ram, the so-called press ram, for forming.
  • This is stored inside the press frame and has, for example, a mechanical or hydraulic drive in order to provide the force required for forming during the required travel.
  • the die is located in the tool block on the press table to which the press ram performs an oscillating relative movement.
  • the transfer press comprises lower tools or lower punches, which are driven by a lower ram and push the workpiece out of the die.
  • transfer presses are known in the prior art. For example, describe the US 4166372 A and US 4655071 A Transfer presses for processing cup-shaped metallic workpieces, whereby several upper punches are installed on a ram head, while the lower tools are individually driven via a camshaft.
  • a transfer press has upper tools with different diameters along their height for the incorporation of steps into the metallic workpiece.
  • the upper tools are driven jointly by a main ram, while the lower tools can be lifted individually or together.
  • US 2539807 A suggests, in deviation from this, a transfer press in which the upper tools are jointly controlled by a ram head, while the lower tools are jointly controlled by a ram foot.
  • the DE 2743642 A1 proposed a transfer press in which both the stamps as upper tools and the lower tools as ejectors are each driven separately.
  • the complex drive control is a disadvantage.
  • the transfer presses comprise a press ram for receiving the drawing punch as an assembly.
  • a lower ram or several individually controllable lower rams with corresponding rams are provided for demoulding.
  • a central drive is distributed over both assemblies.
  • the geometrical distance between the press ram and the lower ram for demolding results in a complex mechanical coupling.
  • gears, especially gear pairs, Shafts, especially universal joints and shafts, chains, belts and couplings are used.
  • One object of the invention was to provide a transfer press which eliminates the disadvantages of the prior art.
  • the invention relates to a transfer press for carrying out at least two forming and demolding steps of a workpiece, comprising a press table with at least two dies for receiving the workpiece, a transfer system for transferring the workpiece between the dies and at least two upper tools and at least two lower tools , which can perform a relative movement to the press table so that in a first forming step the workpiece can be formed by a first upper tool in a first die, in a first demolding step the workpiece can be removed from the die by a first lower tool, in a transfer step the Workpiece through the transfer system from the first die can be conveyed to the second die, in a second forming step the workpiece can be formed by a second upper tool in a second die and in a second demolding step the workpiece can be removed from the second die by a second lower tool, the upper tools are installed on a tappet head, the sub-tools are installed on a tappet foot and the tappet head and the tappet foot are rigid
  • a “workpiece” is understood to mean the component to be machined, which undergoes several forming processes in the transfer press.
  • Preferred workpieces are metal sheets, in particular sheet metal cups, which are drawn successively.
  • the "upper tools” are the tools of the transfer press, which are used to shape the workpiece. This is preferably a drawing punch. By interacting with the corresponding matrices, these allow the workpieces to be deep drawn.
  • the “matrices” preferably designate the molding tools which are present in the tool block on the press table and are formed by clearances as a counter-shape to the upper tools.
  • the dies are circular, for example, the diameter of the dies being at least twice the sheet thickness of the resulting drawing stages greater than the diameter of the upper tools or drawing punches.
  • the "lower tools" carry out the demolding process.
  • the lower tools are in particular ejector, ejector or push-out punches.
  • the lower tools are adapted to the size of the dies and ensure that any workpieces present in the dies are pushed out when the lower tools are inserted.
  • the forming takes place by a relative movement of the upper tools from top to bottom.
  • the top and bottom are preferably defined according to gravity.
  • the upper tools are withdrawn from the bottom to the top, with the lower tools preferably simultaneously removing the workpieces from the dies by an upward movement.
  • a reverse construction of the transfer press is also suitable for implementing the teaching according to the invention, with the forming from bottom to top he follows. In that case, the directions of the upper and lower tools would be reversed for the description of the invention.
  • the workpiece undergoes at least two forming and demolding processes as it passes through the transfer press.
  • the transfer press includes a transfer system.
  • the transfer system After a first forming and demolding step, the workpiece is conveyed further in a first die so that a second forming step can take place in a second die.
  • Suitable transfer systems are known to those skilled in the art.
  • the workpiece can be transferred to a swing body which oscillates between two positions.
  • the workpiece is transferred to the oscillating body, which aligns the workpiece with the second die through a pre-oscillation (transfer step).
  • the alignment thus preferably means positioning the workpieces, for example above the respective die, so that deformation can take place in the respective die.
  • the shaping steps take place simultaneously for several workpieces according to their positioning in the dies.
  • the successive reshaping of a workpiece that passes through the transfer press is preferably achieved through different dimensions of the upper tools. For example, drawing punches that are longer or that are becoming shorter can be used.
  • the various upper tools are always guided simultaneously in a relative movement to the press table. The same applies to the lower tools, which simultaneously push or demold several workpieces from the respective dies.
  • the transfer press comprises a ram head, to which the upper tools are attached, and a ram foot for the lower tools.
  • the tappet head and the tappet foot are rigidly connected to one another. This only lies in the transfer press according to the invention a movable component to control the kinematics of the upper and lower tools.
  • the rigid assembly of the tappet head and the tappet base is also referred to as a tappet assembly or tappet.
  • the upper tools are usually operated by a main ram in the form of a monoblock. This must be designed for a high level of force transmission, since the amount of work required for forming is significantly greater than the work of demolding.
  • the prior art transfer presses separately comprise one or more rams for operating the demolding or lower tools. To drive the main ram and the ram (s) for demolding, either a complex mechanical coupling of a central drive or the use of several electronically synchronized individual drives is necessary, as explained above.
  • the plunger according to the invention By using the plunger according to the invention, only a simple drive is advantageously necessary. This controls both the lifting and lowering of the upper and lower tools. According to the invention, it was recognized that the kinematics of the transfer press can be significantly simplified by a mechanically rigid connection of a ram head for the upper tools and a ram foot for the lower tools. In this way, the invention allows a reduction in the effort and costs involved in manufacturing, operating and maintaining the transfer press.
  • the ram according to the invention allows a surprisingly compact design of the transfer press.
  • the rams are preferably dimensioned in a guiding ratio in which the ram height is almost as large or greater than the ram width.
  • the designation of a height or a vertical extent, e.g. of the ram or the transfer press preferably the dimension in which the upper and lower tools are moved up and down relative to the press table.
  • the width or lateral extent, e.g. of the ram or the transfer press on the other hand, preferably denotes the direction along which the at least two upper or lower tools are lined up next to one another and the workpieces successively go through the intended forming steps in the transfer press.
  • the rigid connection of the tappet head with the tappet base allows a significantly more compact design.
  • the relevant ram height for stable guidance is equal to the total height from the tappet head to the tappet base.
  • the rigid connection between the tappet head and the tappet base is preferably understood to mean any mechanical connection which does not allow any relative movement of the two components to one another.
  • the plunger according to the invention can be a monoblock or can be assembled from several components for this purpose.
  • the tappet head and the tappet foot are rigidly connected to one another with the aid of two side parts.
  • the side parts preferably represent vertical connections between the tappet head and the tappet foot, which are fixed to the respective outer, lateral ends of the tappet head and foot.
  • a particularly stable ram according to the invention can be constructed with a minimum of material expenditure.
  • the side parts can be shaped differently and attached to different positions of the tappet head and foot.
  • the rams could be connected by two side parts in the form of tie rods, which run through the press table on both sides.
  • Such a rigid connection is distinguished by a particularly favorable power transmission and mechanical coupling of the tappet head and foot.
  • openings in the press table are required in this embodiment, whereby its capacity for absorbing the acting forces is weakened.
  • homogeneous press tables are advantageous for taking up the work performed by the upper tools.
  • the ram head, the ram foot and the press table are in one plane, the side parts for rigidly connecting the ram head with the ram foot having a C-shape so that the side parts from the ram head to the ram foot pass in front of or behind the press table become.
  • the design of the side parts in a C shape preferably means that they do not connect the ram head and the ram foot directly vertically, but rather a bend in the side profile of the transfer press, i.e. a C-shape.
  • the direction in front of or behind the press table relates to the depth of the transfer press, i.e. the extent which is orthogonal to the side and height.
  • the embodiment is characterized by a compact and particularly force-stable construction of the plunger according to the invention with low material expenditure and weight.
  • the ratio of the width of the ram to the height of the ram is 1 to at least 0.5, preferably 1 to at least 1.
  • the height of the ram is preferably measured from the upper end of the ram head to the lower end of the tappet base, whereas the width corresponds to the distance between the extreme lateral end of the plunger.
  • the preferred size ratios allow particularly stable guidance. Accordingly, bearings for guiding the tappet can be installed laterally on the tappet head and foot, which are at a distance of almost the width of the tappet or are even larger. The greater the vertical distance between the bearings, the more effectively tilting or the occurrence of transverse forces can be avoided.
  • the ram height contributes significantly to the overall height of the transfer press. The above parameters represent optimized values with regard to a space-saving design with high guidance stability.
  • the transfer press comprises a central drive motor as the starting point of a drive train, which controls the movement of the ram via at least one connecting rod.
  • the upper and lower tools of the transfer press can advantageously be moved by a single drive train.
  • the at least one connecting rod for power transmission to the tappet preferably starts at the upper end of the tappet head. There for If a greater force is necessary for forming than for demolding, this positioning is mechanically advantageous.
  • At least two connecting rods are particularly preferably used, which are installed at the force centers on both sides of the main tappet.
  • the two-point arrangement enables tilting moments to be counteracted particularly effectively, which can occur during the transmission of force to the tappet.
  • the at least one connecting rod is preferably set in a vertical movement relative to the press table via a crankshaft by a drive train.
  • Various prior art motors can be used to drive the crankshaft, such as servo motors, asynchronous motors or torque motors.
  • the ram head and the ram foot are guided in a frame of the transfer press with the aid of linear bearings.
  • the frame of the transfer press can, for example, have a rectangular frame which ensures high stability.
  • the linear bearing points are profile rail guides, preferably recirculating roller units, and / or hydrodynamic slide bearings.
  • Profile rail guides are well known in the prior art.
  • rolling elements roll on a guide rail and within a guide carriage.
  • the guide rail is preferably attached to the frame, while the guide carriage is attached to the ram.
  • Balls (recirculating ball units) or rollers (recirculating roller units) are used as rolling elements in profile rail guides.
  • the rolling elements in the carriage are deflected so that a linear movement (stroke) corresponding to the length of the profile rail is possible.
  • roller circulation units are particularly suitable, as they are characterized by a high load-bearing capacity and load capacity. Since the profile rail guides are standardized bearing units, they can be exchanged particularly easily and inexpensively in the event of wear. Furthermore, profile rail guides and in particular stand out Recirculating roller units are characterized by a high-precision and play-free design of the bearing.
  • a particularly advantageous storage is possible with a lateral arrangement of the profile rail guides on the ram, since they withstand maximum loads. However, this requires a high level of manufacturing accuracy with regard to the spacing between the ram and the frame.
  • the profile rails can, for example, also be attached to the rear of the press frame, which eliminates the high requirements of laterally fitting the ram into the frame of the frame.
  • hydrodynamic plain bearings can also be selected. These generally have larger tolerances compared to the accuracy of fit of the plunger in the guide within the frame and are also characterized by long service lives. In terms of precision, freedom from play and load-bearing capacity, however, the profile rail guides have surprisingly proven to be a particularly preferred embodiment.
  • the transfer press comprises four linear bearing points, which each guide the ram head and the ram foot laterally in a frame of the transfer press.
  • the guidance accuracy and load-bearing capacity of off-center loads is particularly high in this bearing.
  • the ram can be adjusted without play in a frame of the transfer press with the aid of lateral wedge adjustments.
  • the wedge adjusters are preferably a separate assembly that is installed between the press frame and one side of the slide guide.
  • the transfer press preferably has two wedge adjustments, ie one each at the level of the ram head and one at the level of the ram foot.
  • the wedge adjusters comprise two wedges which can be displaced relative to one another, with a vertical displacement of the wedges towards one another leads to an increase or reduction in the lateral extent of the wedge adjustment. Thanks to the wedge adjustments, a predefined installation state can be implemented in a simple and precise manner. The embodiment thus allows an exact lateral fitting of the plunger into the frame in order to ensure freedom from play.
  • Such an adjusting structure for fitting the ram is particularly advantageous when using lateral profile rail guides such as the circulating roller units.
  • each side part of the tappet assembly has a feather key for moving the tappet head and / or the tappet base in depth and a pivot point for rotating the tappet head and / or the tappet base about a horizontal axis.
  • the feather keys preferably one feather key on each side of the tappet, can preferably cause the tappet head to be displaced forwards or backwards relative to the tappet base.
  • a pivot point which can be implemented, for example, by a bolt, allows the tappet foot to rotate about a horizontal axis, so that the lower tools can be aligned at the correct angle to the upper tools.
  • the degrees of freedom of the preferred positioning structures advantageously allow an alignment of the ram head to the ram foot so that the corresponding upper and lower tools are perfectly inserted into the dies of the press table can. It has been shown that the actuating structure can compensate for manufacturing tolerances of the components within the tappet assembly that occur with minimal effort. After the alignment, the parts are preferably pinned to one another so that they form a rigid arrangement.
  • the transfer system for the workpieces comprises a swing body.
  • the workpieces are preferably reshaped in dies provided for this purpose, which are located in a tool block on a press table.
  • the press table is firmly connected to the press frame so that the press force can be absorbed by the frame during the forming of the workpiece in the dies.
  • the workpiece is demolded from the dies by an upward movement of the ram using the lower tools.
  • the workpieces are preferably pushed into the gripper jaws of the swing body. With the help of eccentrics, the swing body is moved between two positions while the transfer press is in operation.
  • the workpieces are in the swing body and are transported from the first to the second position by a transfer step (pre-swinging).
  • a transfer step pre-swinging
  • the swing body oscillates back without workpieces from the second to the first position.
  • the sequence of the process steps thus takes place in such a way that the workpieces are always transported in the transfer direction.
  • a die station can contain several dies for a forming step, which are arranged one below the other.
  • the transfer press comprises at least two groups with at least two, preferably at least four, upper tools as well as at least two groups aligned to this with at least two, preferably at least four, lower tools, so that the transfer press can process workpieces simultaneously in at least two tracks.
  • a track preferably denotes an arrangement of the tools for successive forming in two or more steps from an incoming workpiece to the desired formed workpiece.
  • the transfer press is suitable for reshaping cup-shaped workpieces made of sheet metal, particularly preferably for producing cartridge cases.
  • the ram has a width and a height between 500 mm and 1500 mm, particularly preferably between 800 mm and 1200 mm, most preferably between 950 mm and 1050 mm. It is particularly preferred here to select a guide ratio of the ram from width to height of 1 to at least 0.5, particularly preferably 1 to at least 1. Due to the dimensions mentioned, the transfer press is particularly suitable for handling the high forces when forming cup-shaped workpieces made of sheet metal, particularly preferably in the production of cartridge cases.
  • the transfer press preferably generates forming forces of at least 30 kN, particularly preferably at least 40 kN, most preferably at least 50 kN per drawing station.
  • Preferred drawing punches have diameters between 5 and 20 mm, particularly preferably between 8 and 12 mm.
  • the invention thus in particular also relates to the use of a transfer press according to the invention or preferred embodiments for reshaping cup-shaped workpieces made of sheet metal, preferably for producing cartridge cases.
  • Fig. 1 shows a schematic 3D front view of a preferred embodiment of the transfer press to show the ram.
  • the preferred transfer press is used to reshape cup-shaped workpieces made of sheet metal.
  • the transfer press comprises upper tools 1 and lower tools 3.
  • the transfer press has two tracks for processing the workpieces.
  • the left and right tracks each include five upper tools or drawing punches 1 as well as five lower tools or demolding punches 3 aligned with them.
  • the dies (not visible) are in a tool block 13 on the press table 11 for the purpose of forming.
  • the workpieces are transported from one die to the next by means of a transfer system 23.
  • the tappet comprises a tappet main 5 for attaching the upper tools 1 and a tappet foot 7 for fixing the lower tools 3.
  • the tappet main 5 and the tappet foot 7 are rigidly connected to one another by two side parts 9.
  • the ram head 5, the ram foot 7 and the press table 11 are in one plane, whereas the side parts 9 are guided from the ram head 5 to the ram foot 7. In the side view of the transfer press, the side parts 9 therefore have a corresponding C-shape.
  • the drive of the shaped tappet is accomplished via two connecting rods 21 with the aid of a crankshaft 25, the connecting rods 21 preferably acting on each track in the force center of gravity in order to ensure stable power transmission.
  • the ram is movably mounted in the press frame 15 by means of four lateral roller circulation units 19 in order to enable precise vertical guidance. Two on one side Wedge adjustments 17 are used to laterally fit the ram into the guide frame of the press frame 15.
  • the tappet can advantageously be driven via a single drive motor (not shown) which transmits the movement to the crankshaft 25, for example via a belt gear, a flywheel, a clutch / brake combination and a planetary gear.
  • a separate control of the upper and lower tools 1, 3 is not necessary, since the tappet head 5 is rigidly connected to the tappet foot 7 by means of the side parts 9.
  • Fig. 2 shows a schematic sectional illustration of a preferred embodiment of the transfer press in the plane of the forming of the workpieces.
  • the tappet head 5 is attached to the frame 15 on the left side via a wedge adjustment 17.
  • the vertically guided movement of the ram in the press frame 15 is carried out by roller circulation units 19.
  • Fig. 3 shows a detailed view of the roller circulation units 19 and the feather key 29.
  • the ram head 5 can be moved in the depth of the transfer press, ie forwards and backwards, relative to the ram foot 7.
  • Figures 4a, b The alignment of the main and tappet feet 5 and 7 is shown in Figures 4a, b clarified.
  • Figure 4a Fig. 13 is a sectional front view
  • Figure 4b represents a side view.
  • a lateral displacement of the tappet head 5 and the tappet foot 7 is possible by means of two wedge adjustments 17 on the left.
  • the width of the wedge adjustment 17 is adjusted by a vertical displacement of the wedges, so that the ram is fitted into the side frame of the press frame 15 without play.
  • the feather key 29 allows the tappet head 5 to be adjusted in depth relative to the tappet foot 7.
  • the bolt 33 enables the tappet foot 7 and therefore the lower tools 3 to be tilted about a horizontal axis. As illustrated in the side view 6b, the lower tools 3 can thereby be aligned concentrically to the dies and upper tools 1.
  • Fig. 5 shows a schematic representation of a preferred embodiment of the transfer system 23 of the transfer press.
  • This comprises a swing body 35 with gripper jaws 41 for receiving the workpieces.
  • a workpiece is demolded from the dies by an upward movement of the ram using the lower tools 3.
  • the workpieces are preferably pushed into the gripper jaws 41 of the rocker body 35.
  • the swing body 35 can be moved between two positions in an oscillating manner during operation of the transfer press.
  • the workpieces are in the swing body and are transported from the first to the second position by a transfer step (pre-swinging).
  • the swing body swings back from the second to the first position without workpieces.
  • the sequence of the process steps thus takes place in such a way that the workpieces are always transported in the transfer direction.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Presses And Accessory Devices Thereof (AREA)

Claims (15)

  1. Presse-transfert pour effectuer au moins deux étapes de mise en forme et de démoulage d'une pièce, comprenant un bloc d'outils (13) sur une table de presse (11) comportant au moins deux matrices (31) pour recevoir la pièce, un système de transfert (23) pour transférer la pièce entre les matrices (31) ainsi qu'au moins deux outils supérieurs (1) et au moins deux outils inférieurs (3) qui peuvent exécuter un mouvement relatif par rapport à la table de presse (11), de sorte que,
    la pièce peut être mise en forme par un premier outil supérieur (1) dans une première matrice (31) dans une première étape de mise en forme,
    la pièce peut être démoulée de la matrice (31) par un premier outil inférieur (3) dans une première étape de démoulage,
    la pièce peut être orientée sur une seconde matrice (31) dans une étape de transfert par le système de transfert (23),
    dans une seconde étape de mise en forme, la pièce peut être mise en forme par un second outil supérieur (1) dans la seconde matrice (31) et, dans une seconde étape de démoulage, la pièce peut être démoulée de la seconde matrice (31) par un second outil inférieur (3), caractérisée en ce que
    les outils supérieurs (1) sont installés sur une tête de serre-flan (5), les outils inférieurs (3) sont installés sur un pied de serre-flan (7) et la tête de serre-flan (5) et le pied de serre-flan (7) sont reliés rigidement l'un à l'autre et forment un serre-flan.
  2. Presse-transfert selon la revendication précédente caractérisée en ce que
    la tête de serre-flan (5) et le pied de serre-flan (7) sont reliés rigidement l'un à l'autre à l'aide de deux parties latérales (9).
  3. Presse-transfert selon la revendication précédente
    caractérisée en ce que
    la tête de serre-flan (5), le pied de serre-flan (7) et la table de presse (11) sont dans un plan et les parties latérales (9) présentent une forme en C, de sorte que les parties latérales (9) sont conduites de la tête de serre-flan (5) au pied de serre-flan (7) devant ou derrière la table de presse (11).
  4. Presse-transfert selon l'une des revendications précédentes
    caractérisée en ce que
    le rapport entre la largeur et la hauteur du serre-flan est de 1 sur au moins 0,5, de préférence de 1 sur au moins 1.
  5. Presse-transfert selon l'une des revendications précédentes
    caractérisée en ce que
    la presse-transfert présente un moteur d'entraînement central comme point de départ d'un train d'entraînement qui commande le mouvement du serre-flan par au moins une bielle (21).
  6. Presse-transfert selon la revendication précédente
    caractérisée en ce que
    deux bielles (21) sont installées sur la tête de serre-flan (5) et transfèrent le mouvement du train d'entraînement au serre-flan.
  7. Presse-transfert selon l'une des revendications précédentes
    caractérisée en ce que
    la tête de serre-flan (5) et le pied de serre-flan (7) sont guidés dans un cadre de presse (15) à l'aide de paliers linéaires.
  8. Presse-transfert selon la revendication 7
    caractérisée en ce que
    les paliers linéaires sont des unités de circulation à rouleaux (19) et/ou des paliers lisses hydrodynamiques.
  9. Presse-transfert selon l'une des revendications précédentes
    caractérisée en ce que
    la presse-transfert comprend quatre paliers linéaires guidant chacun latéralement la tête de serre-flan (5) et le pied de serre-flan (7) dans un cadre de presse (15).
  10. Presse-transfert selon l'une des revendications précédentes
    caractérisée en ce que
    le serre-flan peut être réglé sans jeu dans un cadre de presse (15) à l'aide de réglages latéraux de coin (17).
  11. Presse-transfert selon l'une des revendications précédentes 2 à 10
    caractérisée en ce que
    chaque partie latérale (9) du serre-flan présente une clavette (29) pour déplacer la tête de serre-flan (5) et/ou le pied de serre-flan (7), ainsi qu'un point de pivot (33) pour faire tourner la tête de serre-flan (5) et/ou le pied de serre-flan (7) autour d'un axe horizontal.
  12. Presse-transfert selon l'une des revendications précédentes
    caractérisée en ce que
    le système de transfert (23) comprend un corps basculant (35).
  13. Presse-transfert selon l'une des revendications précédentes
    caractérisée en ce que
    la presse-transfert comprend au moins deux groupes comportant au moins deux, de préférence au moins quatre, outils supérieurs (1) ainsi qu'au moins deux groupes comportant au moins deux, de préférence au moins quatre, outils inférieurs (3) orientés sur ceux-ci, de sorte que la presse-transfert peut traiter des pièces simultanément sur au moins deux pistes.
  14. Presse-transfert selon l'une des revendications précédentes
    caractérisée en ce que
    la presse-transfert est appropriée pour mettre en forme des pièces en forme de cuvette à partir de tôle métallique, de manière particulièrement préférée pour la production de munitions encartouchées.
  15. Utilisation d'une presse-transfert selon l'une des revendications précédentes pour mettre en forme des pièces en forme de cuvette à partir de tôle métallique, de préférence pour la fabrication de munitions encartouchées.
EP17725155.0A 2016-04-28 2017-04-28 Presse-transfert pourvue d'un serre-flan en c Active EP3448594B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL17725155T PL3448594T3 (pl) 2016-04-28 2017-04-28 Prasa transferowa z suwakiem w kształcie litery C

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102016005145 2016-04-28
DE102016005322 2016-05-02
PCT/DE2017/100352 WO2017186234A1 (fr) 2016-04-28 2017-04-28 Presse-transfert pourvue d'un serre-flan en c

Publications (2)

Publication Number Publication Date
EP3448594A1 EP3448594A1 (fr) 2019-03-06
EP3448594B1 true EP3448594B1 (fr) 2020-08-19

Family

ID=58765631

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17725155.0A Active EP3448594B1 (fr) 2016-04-28 2017-04-28 Presse-transfert pourvue d'un serre-flan en c

Country Status (9)

Country Link
US (1) US11712734B2 (fr)
EP (1) EP3448594B1 (fr)
JP (1) JP2019518605A (fr)
KR (1) KR102372407B1 (fr)
ES (1) ES2832474T3 (fr)
HU (1) HUE052462T2 (fr)
PL (1) PL3448594T3 (fr)
WO (1) WO2017186234A1 (fr)
ZA (1) ZA201806395B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6840448B1 (ja) * 2020-01-31 2021-03-10 旭精機工業株式会社 プレス機及びプレス製品の製造方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2539807A (en) 1944-10-16 1951-01-30 Automatic Die & Products Compa Method of forming articles
US3596498A (en) * 1968-12-27 1971-08-03 Textron Inc Press
US3683665A (en) * 1970-09-29 1972-08-15 Textron Inc Multiple station forming press
US3728902A (en) * 1970-11-30 1973-04-24 S Mccaughey High speed transfer drive
CH602208A5 (fr) 1976-09-29 1978-07-31 Km Engineering Ag
US4339939A (en) * 1977-06-16 1982-07-20 Textron, Inc. Drawing heavy walled parts
US4166372A (en) * 1978-05-12 1979-09-04 The U.S. Baird Corporation Multi-station transfer press having punch extending means
US4509356A (en) * 1982-08-13 1985-04-09 Verson Allsteel Press Co. Method and apparatus for drawing heavy wall shells
US4562719A (en) 1983-09-23 1986-01-07 Verson Allsteel Press Company Method for drawing heavy wall shells with a multi-step inside edge
US4602541A (en) * 1984-12-06 1986-07-29 Trumpf Gmbh & Co. Punch press with means for rotating the workpiece and method of using same and tooling therefor
JP2538772B2 (ja) * 1985-05-30 1996-10-02 株式会社 能率機械製作所 トランスフアプレス装置
US4655071A (en) * 1985-11-26 1987-04-07 The U.S. Baird Corporation Transfer press with quick change die set arrangement
ITTO20050880A1 (it) * 2005-12-16 2007-06-17 Crea Srl Macchina combinata pannellatrice-piegatrice
JP2011152547A (ja) * 2010-01-26 2011-08-11 Fuji-Steel Industry Co Ltd 機械式プレス機

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
US20190118242A1 (en) 2019-04-25
KR20190002524A (ko) 2019-01-08
JP2019518605A (ja) 2019-07-04
WO2017186234A1 (fr) 2017-11-02
ES2832474T3 (es) 2021-06-10
EP3448594A1 (fr) 2019-03-06
PL3448594T3 (pl) 2021-01-25
KR102372407B1 (ko) 2022-03-10
ZA201806395B (en) 2019-07-31
HUE052462T2 (hu) 2021-04-28
US11712734B2 (en) 2023-08-01

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