EP3914404A1 - Dispositif pour estamper et pour poinçonner une pièce en forme de plaque - Google Patents

Dispositif pour estamper et pour poinçonner une pièce en forme de plaque

Info

Publication number
EP3914404A1
EP3914404A1 EP20700347.6A EP20700347A EP3914404A1 EP 3914404 A1 EP3914404 A1 EP 3914404A1 EP 20700347 A EP20700347 A EP 20700347A EP 3914404 A1 EP3914404 A1 EP 3914404A1
Authority
EP
European Patent Office
Prior art keywords
hydraulic
stamp
punch
unit
chamber
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.)
Pending
Application number
EP20700347.6A
Other languages
German (de)
English (en)
Inventor
Eberhard Dietzel
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.)
Tox Pressotechnik GmbH and Co KG
Original Assignee
Tox Pressotechnik GmbH and Co KG
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 Tox Pressotechnik GmbH and Co KG filed Critical Tox Pressotechnik GmbH and Co KG
Publication of EP3914404A1 publication Critical patent/EP3914404A1/fr
Pending legal-status Critical Current

Links

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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/26—Perforating, i.e. punching holes in sheets or flat parts
    • 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
    • B21D22/02—Stamping using rigid devices or tools
    • B21D22/04—Stamping using rigid devices or tools for dimpling
    • 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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • 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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/34—Perforating tools; Die holders

Definitions

  • Tools for embossing a depression in a plate material and for punching the depression in one operation are known. Such tools have, for example
  • Workpiece can be positioned for machining.
  • the embossing and punching requires, on the one hand, a control of the complex work process and a corresponding mechanical system including a controllable suitable drive arrangement.
  • the object of the present invention is to provide a device for embossing and punching workpieces, which is described at the outset and with which work processes can be implemented reliably and which is advantageously designed with regard to the drive situation.
  • the invention is based on a device, for example a tool, for embossing a depression in a plate-like one Workpiece and for punching through the workpiece in the area of the embossed depression, comprising a stamp unit and a die unit opposite the stamp unit, the one with the die unit between the stamp unit and the die unit
  • the stamping unit having a stamp with a shaped stamp and with a stamping stamp, the shaped stamp being designed to come into contact with the recess on a workpiece side in the region of the recess and the stamping stamp being designed to shape the workpiece to punch through in the area of the recess, the shaped punch and the punch being movable along a joining axis of the device.
  • the workpiece is, for example, a sheet metal material.
  • the punching is preferably carried out in a material area of the workpiece which passes through a preferably flat bottom of the depression
  • the bottom of the depression takes place from the side of the depression or the bottom on which the shaping stamp comes into contact with the depression or the bottom.
  • the essence of the invention is that the shaped stamp and the punch are accommodated in a stamp housing, the shaped stamp and the punch having a common one
  • Joining axis of the device can be driven.
  • Hydraulic supply is preferably part of the device according to the invention.
  • the invention is advantageous with regard to a reduced complexity of the drive situation, in particular for the part of the stamp drive which controls the movement of the
  • Form stamp and the punch relative to the stamp housing relates.
  • a drive for a movement of the stamp housing which is preferably additionally on the
  • Stamp unit is present and / or works independently of the drive by means of the hydraulic supply, can be realized independently of the hydraulic drive of the form and punch.
  • the hydraulic supply for example with a hydraulic Pressure generation outside the stamp housing, is preferably connected to one or preferably two or more
  • Hydraulic rooms that are hydraulically separated from each other in the stamp housing.
  • the hydraulic supply is preferably designed in such a way that the shaping stamp and the punching stamp can be driven independently of one another or only individually or jointly with the hydraulic supply or at the same time or at different times or
  • the die and the die can be driven one after the other.
  • the die and the die move in a common drive phase
  • the hydraulic supply is preferably used for moving in z. B. a joining direction and for moving against the joining direction of the die and / or the
  • the hydraulic supply not only enables an active, driven movement of the shaping stamp and / or the punching stamp, it is rather the case with the
  • Hydraulic supply can be set up so that the hydraulic supply exerts a predeterminable counter-force on the form stamp and / or the stamping stamp, which acts counter to a direction of movement of the stamp concerned if the movement does not originate from the hydraulic supply, for example the movement is forced from the outside or not on the hydraulic side .
  • the counterforce is provided in particular by a hydraulic fluid which is accommodated in a hydraulic chamber of the stamp housing and is present on the forming stamp and / or the stamping stamp.
  • At least one front or die-side end section of the punch is received within a section of the die or surrounded on the outside or
  • the shaped stamp recess is at least open on the die side, so that depending on the drive or
  • the end face of the punch on the die side is preferably flush with the end face of the forming die or slightly recessed.
  • the punch stamp has on the die side z. B. on one
  • Base body face of a base body of the punch such as a punching piston, for example exactly one for
  • Base body end protruding and punching through the workpiece elongated punching section with an end face.
  • the stamping section is preferably interchangeable on
  • the stamping punch has two or more separate stamping sections with separate end faces which protrude toward the end face of the base body.
  • the multiple punching sections can be identical to one another or
  • Stamped workpiece The punched sections are preferably separate z.
  • a base body side for example a forward stroke side and / or a return stroke side of the punch, preferably adjoins an associated hydraulic chamber in the
  • the hydraulic supply preferably comprises at least one
  • Hydraulic fluid space is preferably in a
  • Stamp unit and die unit housed separate or separate unit, preferably with a housing within which the hydraulic fluid space or
  • a piston such as a booster piston of a hydropneumatic
  • Hydraulic fluid works.
  • the hydraulic fluid chamber is hydraulic with exactly one hydraulic chamber of the stamp unit or with several
  • Connection is preferably z. B. via a
  • Hydraulic connection or hydraulic line is preferably designed as a flexible hose connection or as a rigid connection, with a rigid line or with a rigid component with a housing, within which the line is present.
  • the rigid component is preferably connected to or connected to the stamp housing and a housing of the hydraulic supply
  • a forward stroke side of a piston is a side on which a hydraulic chamber acts, whereby by increasing the pressure in the
  • Hydraulic chamber of the piston is movable in a pre-stroke direction, or along the joining axis in a direction towards the die unit. This presupposes that there is a path of movement for the piston in this direction, e.g. B. the piston does not abut a stop in this direction.
  • a return stroke side of a piston is a side on which a hydraulic chamber acts, whereby by increasing the pressure in the Hydraulic chamber of the piston is movable in a return stroke direction, or along the joining axis in a direction away from the
  • the forward stroke side on a piston includes a portion on the piston opposite a portion associated with a return stroke side of the piston, e.g. B.
  • the stamp unit has a first hydraulic chamber and a second hydraulic chamber, which are hydraulically separated from one another within the stamp housing. This allows a forward stroke side and / or a return stroke side of the form and / or the punch to be subjected to hydraulic pressure. Therefore, either a position of the die and / or the punch can be fixed, in particular unchangeably held, or a movement of the die and / or punch in a desired direction along the joining axis can be specified.
  • Hydraulic space can be on a pre-stroke side or on a
  • a second hydraulic chamber in the stamp housing can preferably act, for example, both on a forward stroke side of the forming stamp and on a return stroke side of the stamping stamp.
  • the first hydraulic chamber in the stamp housing preferably acts on a forward stroke side of the stamping stamp without acting on the shaping stamp.
  • Inner wall of the stamp housing is formed.
  • the seal can, for example, be present on the outer circumference of the moving punching piston. The first hydraulic chamber and the second hydraulic chamber are thus secure within the stamp housing
  • the first hydraulic space and / or the second hydraulic space are preferred
  • first hydraulic space over a first hydraulic connection is connected to the hydraulic supply.
  • a desired pressure level can thus be specified separately or in a controllable manner in the first hydraulic chamber.
  • the first hydraulic connection such as a hydraulic line, is particularly suitable for having hydraulic fluid in both
  • the first hydraulic connection preferably connects the first hydraulic chamber to a hydraulic high-pressure chamber of the hydraulic supply.
  • the second hydraulic chamber of the stamp unit is via a second one
  • Hydraulic connection connected to the hydraulic supply.
  • the second hydraulic connection preferably connects
  • the first and / or second hydraulic connection is, for example, a rigid pipeline or a flexible hose line, which are designed for high-pressure hydraulic operation.
  • Hydraulic supply are connected.
  • the first and the second hydraulic chamber are preferably connected to a common high-pressure chamber of the hydraulic supply.
  • the high pressure room of the hydraulic supply is connected.
  • Hydraulic supply is preferably a high-pressure room in which a hydraulic high pressure of z. B. there are several hundred bar. In the high-pressure chamber, the hydraulic pressure can be changed, in particular reversibly reduced and increased.
  • the hydraulic pressure in the high-pressure chamber can be brought to a medium or low pressure level which is below the high-pressure pressure level.
  • the high pressure space is a hydraulic space in which, for example, by a higher-level control unit such as Legs
  • Control unit there is a comparatively high pressure, z. B. sometimes a comparatively low pressure or
  • the forward stroke side of the punch is preferably an axially aligned side of the punch, for example one
  • Wall section that is movable.
  • the others are preferably the first hydraulic chamber
  • the further wall sections delimiting the first hydraulic space preferably do not include any
  • the second hydraulic chamber of the stamp unit acts on the return stroke side of the
  • stamping stamp and on the pre-stroke side of the forming stamp Accordingly, the second hydraulic chamber acts on a section of the
  • Stamping stamp and on a section of the form stamp are preferably located axially to the axis of movement of the stamp or to
  • the second hydraulic chamber of the stamping unit is preferably circumferential as a ring volume around a partial length of the stamping stamp educated .
  • the first hydraulic connection comprises a valve arrangement for opening and / or closing the first hydraulic connection.
  • Control unit a flow of hydraulic fluid through the first hydraulic connection enabled or blocked.
  • the valve arrangement preferably comprises a valve such as e.g. B. a switchable solenoid valve.
  • the second hydraulic connection has in particular no valve for opening and / or closing the second hydraulic connection, but in the simplest case can be, for example, a hydraulic line alone without further line elements.
  • the second hydraulic connection z. B. can be shut off and released with a valve arrangement.
  • the first hydraulic chamber is connected to a low-pressure chamber of the hydraulic supply. So that the punch is hydraulic z. B. brought into a basic position. The punch is retracted against the low pressure in the first hydraulic chamber. High pressure is then present in the second hydraulic chamber.
  • Connection of the first hydraulic chamber to a low-pressure chamber is preferably an additional connection for connecting the first hydraulic chamber to the high-pressure chamber
  • Hydraulic supply can be set up.
  • the first hydraulic chamber can be connected to the high-pressure chamber or the low-pressure chamber via a corresponding circuit of the valve arrangement.
  • the first hydraulic connection preferably has one
  • Branch line on which is connected to the low pressure chamber.
  • the intermediate connection preferably has a valve for releasing and shutting off the intermediate connection.
  • the valve arrangement preferably comprises at least three,
  • a first valve of the first hydraulic connection is between the branch point and the
  • a second valve of the first hydraulic connection is between the branch point and the
  • valve arrangement is designed to open and / or close a connecting section between the high-pressure chamber and the intermediate connection.
  • the connecting section is formed in particular by a partial length of the first hydraulic connection and the intermediate connection.
  • the valve arrangement preferably comprises a valve for opening and / or closing the
  • the low-pressure chamber can be hydraulically connected to the first hydraulic chamber if further valves in this connection are open.
  • Pressure intensifier device comprises. The hydropneumatic
  • Pressure intensifier device is advantageous because a proven standard unit that is available in different design variants ready or ready for use.
  • Hydraulic fluid-filled hydraulic fluid space of the hydropneumatic pressure booster device is connected to the first hydraulic space and / or is connected to the second hydraulic space of the device.
  • Pressure intensifier device preferably includes the
  • Hydraulic fluid is promoted or becomes a hydraulic
  • Hydraulic supply provided.
  • a drive is provided, the drive being designed to drive the stamping unit in such a way that the shaped stamp and the stamping stamp together relative to the die unit along the joining axis of the
  • Device can be driven relative to the die unit.
  • the drive includes, for example, a drive unit.
  • the drive or the drive unit is preferably provided on the stamp side or is part of the stamp unit.
  • An electric drive with an electric motor is preferably provided for this.
  • the stamp housing can be driven with the drive unit relative to other components of a corresponding tool.
  • the tool includes, for example, so-called tool pliers or a so-called C-bracket.
  • the drive is preferably a linear drive, for example an electric linear drive.
  • a linear drive for example an electric linear drive.
  • the linear drive z. B. with the stamp housing of an electric motor is reversible or can be driven back and forth along the joining axis.
  • Fig. 1 is a highly schematic diagram of a
  • Fig. 2 shows a section of a schematic
  • section plane according to FIG. 5 being perpendicular to the section plane according to FIGS. 2 to 4.
  • Device 1 for embossing a depression 2 (see FIGS. 4, 5) into a plate-like workpiece 3 and for
  • the device 1 is designed as an embossing-punching pliers 4, hereinafter referred to as pliers 4.
  • the pliers 4 is shown purely schematically, with a stamp unit 5 and with a die unit 6 opposite the stamp unit 5 along a joining axis F, the work piece 3 that can be machined with the pliers 4 being flat between the stamp unit 5 and the die unit 6 flat initial shape is held, ie before an embossing and Punching.
  • the workpiece 3 is, for example, a sheet metal workpiece and consists, for. B. from a few millimeter thick metal material.
  • the stamp unit 5 comprises a stamp 7 with a
  • stamp ⁇ 8 and a punch stamp 9.
  • the stamp 8 comes when embossing the recess 2 on a workpiece side 3a in
  • an elongated punch section 11 projecting from a base body 10 of the punch 9 and comprising two punch pins 12, 13 punched through the workpiece 3 in the region of the depression 2.
  • the form stamp 8 and the punch 9 are in one
  • Stamp housing 14 included, which with a drive unit such as an electric drive 15 (see FIG. 2) linearly in a
  • Joining axis F can be driven.
  • the punch 7 or the shaping punch 8 and the punch 9 can be moved together linearly driven in the direction RI or towards along the joining axis F of the pliers 4
  • a higher-level programmable control unit is available, for example with a computer unit.
  • the die 8 and the punch 9 are relative to one another via a common hydraulic supply 16
  • Stamp housing 14 can be driven along the joining axis F of the pliers 4.
  • the stamp unit 5 preferably has within the
  • Stamp housing 14 a first hydraulic chamber 17 and one second hydraulic chamber 18.
  • the hydraulic spaces 17 and 18 filled with a hydraulic fluid, such as a hydraulic oil, for example, are within the plunger housing 14
  • Ring seals 19 seal against an inside 14a of the
  • the first hydraulic chamber 17 is above a first one
  • Hydraulic connection 20 connected to the hydraulic supply 16.
  • the second hydraulic chamber 18 is via a second one
  • Hydraulic connection 21 connected to the hydraulic supply 16.
  • the first hydraulic chamber 17 and the second hydraulic chamber 18 are connected to a high-pressure chamber 22 of the hydraulic supply 16.
  • the high-pressure chamber 22 is also filled with the hydraulic fluid.
  • the first hydraulic chamber 17 acts on the punch 7 only in relation to a forward stroke side 9a of the punch 9 or the base body 10.
  • the second hydraulic chamber 18 acts on a return stroke side 9b of the punch 9 and on a forward stroke side 8a of the die 8.
  • the first hydraulic connection 20 for example one
  • Hydraulic line such as a hydraulic hose line has a valve arrangement 23, preferably with a valve 24 and a valve 25, for opening and / or closing the first
  • the second hydraulic line 21, for example a hydraulic hose line, cannot be shut off or
  • the second hydraulic chamber 18 is always hydraulically connected to the high-pressure chamber 22
  • Hydraulic supply 16 comprises a hydropneumatic one
  • Pressure intensifier device 26 with a housing 27, to which indicated pneumatic lines 28, 29 and 30 connect.
  • the high-pressure chamber 22 and a low-pressure chamber 31 are present within the housing 27 of the pressure booster device 26.
  • the mode of operation of the pressure booster device 26 is explained further below.
  • the first hydraulic chamber 17 can optionally be hydraulically conductively connected to the high-pressure chamber 22 and / or to the low-pressure chamber 31 of the hydraulic supply 16.
  • an intermediate connection 32 connects to the first hydraulic connection 20 for a connection to the
  • the intermediate connection 32 is connected at one end to the low pressure chamber 31 and at the other end to the hydraulic connection 20.
  • connection 32 has a valve 33 for opening
  • the valve arrangement 23 comprises the valve 25 for opening and / or closing a connecting section 20a between the
  • connection section 20a is part of the
  • Pressure intensifier device 26 are a pressure intensifier piston 34 and a storage piston 35 in the direction R3 and back in
  • the pressure booster piston 34 has a larger-diameter piston section 34a and a centrically elongated and rigidly connected to it
  • Piston section 34 a smaller diameter piston rod 36.
  • a pneumatic chamber 37 of the pressure booster device 26 enclosed by the housing 27 is acted upon by compressed air via the pneumatic line 28.
  • Pneumatic chamber 38 on the rear stroke side of the pressure booster device 26 is supplied with compressed air via the pneumatic line 29.
  • Pneumatic chamber 39 of the pressure booster device 26 pressurized with compressed air via the pneumatic line 30.
  • the return stroke of the accumulator piston 35 in the direction R4 is carried out by hydraulic fluid flowing into the low-pressure chamber 31 filled with hydraulic fluid.
  • a comparatively high hydraulic pressure in the high-pressure chamber 22 arises when the pressure booster piston 34 moves in the direction R3 and dips with its front or free end of the piston rod 36 into a constriction 40, which has a circumferential seal 41.
  • the piston rod 36 plunges into the constriction 40 the wall of the constriction 40 and an outside of the piston rod 36 are hydraulically sealed from one another by means of the seal 41, so that the high-pressure chamber 22 and the low-pressure chamber 31 are hydraulically separated at the constriction 40.
  • the die unit 6 has a stamp-side end face 6a for one-sided support for the workpiece 3.
  • a die hold-down device or die ring 43 which is linearly movable via a spring 44 along the joining axis F, is received around a central, positionally stable die body 42.
  • the basic position of the device 1 according to FIG. 2 is a plane flat support by the effective to the stamp unit 5
  • FIG. 3 which corresponds to the state according to FIG. 1, the pliers 4 are closed with the drive 15, the workpiece 3 being fixed between the stamp unit 5 and the die unit 6 or with a flat side on the end face 6a of the die unit 6 abuts and is in contact with the other surface side on the face 5a on the die 8 on the face.
  • the form stamp 8 is with hydraulic pressure, which from the pressure intensifier device 26 via the second
  • Hydraulic connection 21 is provided, extended in the direction of R1.
  • the hydraulic pressure in the second hydraulic chamber 18 accordingly acts on the pre-stroke side on the die 8 and
  • the punch 9 is therefore withdrawn in the direction of R2 and stands with its
  • Punching section 11 or with the two retracted punching pins 12, 13 does not have an end face of the forming die 8 which is opposite the end face 6a of the die unit 6.
  • the booster piston 34 of the pressure booster device 26 is actuated pneumatically on the forward stroke side and in a so-called Power stroke extended towards R3.
  • the piston rod 36 is immersed in the constriction 40. Hydraulic high pressure is generated in the high pressure chamber 22, displaced
  • Hydraulic fluid from the high pressure chamber 22 via the
  • valves 25 and 33 or the connecting section 20a and the intermediate connection 32 is pumped into the low-pressure space 31, which additionally functions as a storage space.
  • the valve 24 is closed or shuts off the first hydraulic connection 20 to the hydraulic chamber 17.
  • the shape is embossed (see FIG. 4) or the recess 2 is formed by means of the drive 15. All three valves 24, 25 and 33 are closed. Depending on the
  • a predeterminable shape depth t of the recess 2 is formed in the workpiece 3, based on the undeformed regions of the
  • the mold depth t is, for example, up to 8
  • Stamp housing 14 move in the direction of RI, the
  • Shaped punch 8 withdraws relative to the punch housing 14 in the direction R2, the die hold-down device or die ring 43 simultaneously withdrawing in the direction of RI.
  • the hydraulic fluid quantity of the booster piston 34 or the piston rod 36 is shifted back somewhat in the direction R4, against the force stroke pressure in the high-pressure chamber 22.
  • the hydraulic shaping force prevailing in the high-pressure chamber 22 remains constant.
  • Form punch 8 extended.
  • the pressure booster piston 34 is briefly reset somewhat in the direction R4, so that there is sufficient volume of hydraulic fluid in the high-pressure chamber 22 in front of the piston rod 36.
  • the pressure intensifier piston 34 is then extended again in the direction R3, with the result that a power stroke takes place with the high pressure in the high pressure chamber 22.
  • the valves 24 and 25 are open and the valve 33 is closed.
  • high-pressure hydraulic fluid is displaced from the high-pressure chamber 22 via the hydraulic connection 20 into the hydraulic chamber 17 and the punch 9 extends in the direction of R1.
  • the pliers 4 open with the drive 15, the stamp unit 5 moving in the direction R2.
  • the die 8 extends hydraulically in the direction of R1 to a stop 46 on
  • Hydraulic chamber 18 is set up, which acts on the forward stroke side on the punch 8 and on the return stroke side on the punching piston 9. For this are the
  • Valves 24 and 33 open.
  • the valve 25 is closed and blocks the flow to the high pressure chamber 22 and allows the hydraulic fluid to flow back into the low pressure chamber 31.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

L'invention concerne un dispositif pour estamper un évidement (2) dans une pièce en forme de plaque et pour poinçonner la pièce dans la zone de l'évidement (2) estampé. Le dispositif comprend une unité poinçon et une unité matrice, entre lesquelles la pièce peut être positionnée, l'unité poinçon présentant un poinçon pourvu d'un poinçon de formage (8) et d'un poinçon de perforation (9), le poinçon de formage (8) étant conçu pour venir en appui sur une face de la pièce dans la zone de l'évidement (2) lors de l'estampage de l'évidement (2) et le poinçon de perforation (9) étant conçu pour poinçonner la pièce dans la zone de l'évidement (2), le poinçon de formage (8) et le poinçon de perforation (9) étant mobiles de manière entraînée le long d'un axe d'assemblage du dispositif. Selon l'invention, le poinçon de formage (8) et le poinçon de perforation (9) sont logés dans un boîtier de poinçon, le poinçon de formage (8) et le poinçon de perforation (9) pouvant être entraînés par rapport au boîtier de poinçon le long de l'axe d'assemblage du dispositif par l'intermédiaire d'une alimentation hydraulique commune.
EP20700347.6A 2019-01-23 2020-01-08 Dispositif pour estamper et pour poinçonner une pièce en forme de plaque Pending EP3914404A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019101596.0A DE102019101596A1 (de) 2019-01-23 2019-01-23 Vorrichtung zum Prägen und Durchstanzen eines plattenartigen Werkstücks
PCT/EP2020/050246 WO2020151943A1 (fr) 2019-01-23 2020-01-08 Dispositif pour estamper et pour poinçonner une pièce en forme de plaque

Publications (1)

Publication Number Publication Date
EP3914404A1 true EP3914404A1 (fr) 2021-12-01

Family

ID=69156420

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20700347.6A Pending EP3914404A1 (fr) 2019-01-23 2020-01-08 Dispositif pour estamper et pour poinçonner une pièce en forme de plaque

Country Status (5)

Country Link
US (1) US20210346936A1 (fr)
EP (1) EP3914404A1 (fr)
CN (1) CN113329828B (fr)
DE (1) DE102019101596A1 (fr)
WO (1) WO2020151943A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117019989B (zh) * 2023-10-08 2023-12-15 江苏迅隆电源有限公司 一种具有交变应力模式的铝合金铸件冲压设备

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WO2020151943A1 (fr) 2020-07-30
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CN113329828A (zh) 2021-08-31
CN113329828B (zh) 2023-08-08

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