DE102006003981B4 - Hydroforming press for the production of molded parts by hydroforming - Google Patents

Hydroforming press for the production of molded parts by hydroforming Download PDF

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Publication number
DE102006003981B4
DE102006003981B4 DE102006003981A DE102006003981A DE102006003981B4 DE 102006003981 B4 DE102006003981 B4 DE 102006003981B4 DE 102006003981 A DE102006003981 A DE 102006003981A DE 102006003981 A DE102006003981 A DE 102006003981A DE 102006003981 B4 DE102006003981 B4 DE 102006003981B4
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Germany
Prior art keywords
pressure
tool
hydroforming
press
lower tool
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.)
Expired - Fee Related
Application number
DE102006003981A
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German (de)
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DE102006003981A1 (en
Inventor
Dieter Kapp
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.)
Theodor Graebener GmbH and Co KG
Original Assignee
Theodor Graebener 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
Priority to DE102006003981A priority Critical patent/DE102006003981B4/en
Application filed by Theodor Graebener GmbH and Co KG filed Critical Theodor Graebener GmbH and Co KG
Priority to DE502007000033T priority patent/DE502007000033D1/en
Priority to ES07001287T priority patent/ES2306438T3/en
Priority to AT07001287T priority patent/ATE400377T1/en
Priority to EP07001287A priority patent/EP1813363B1/en
Priority to JP2007018046A priority patent/JP2007196292A/en
Priority to KR1020070008686A priority patent/KR20070078737A/en
Publication of DE102006003981A1 publication Critical patent/DE102006003981A1/en
Application granted granted Critical
Publication of DE102006003981B4 publication Critical patent/DE102006003981B4/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/10—Stamping using yieldable or resilient pads
    • B21D22/12—Stamping using yieldable or resilient pads using enclosed flexible chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
    • 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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/021—Deforming sheet bodies
    • B21D26/025—Means for controlling the clamping or opening of the moulds
    • 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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/021—Deforming sheet bodies
    • B21D26/031—Mould construction
    • 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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/033—Deforming tubular bodies
    • B21D26/039—Means for controlling the clamping or opening of the moulds
    • 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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/033—Deforming tubular bodies
    • B21D26/047—Mould construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/15—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means
    • F24F8/167—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means using catalytic reactions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
    • F24F8/22—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using UV light

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Presses And Accessory Devices Thereof (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

A hydroform press has shrink-joined outer (3) and inner (4) pipes. The inner pipe has a two-part (7, 8) tool mount (6) for an upper (10) and lower (11) tool (9) with a work piece (13) form chamber (12). Short stroke cylinders (14, 15) are located between the tools and tool mounts, and close the tools during the forming process. A pressure cushion (20, 21) is located between the short stroke cylinder pressure pistons (18, 19), the upper and lower tools respectively. The cushions compensate the form chamber (12) inner pressure on the pistons (18, 19) and tools (10, 11). The cushions are integrated in the pistons (18, 19) and/or in the upper and lower tools. Cushion pressure is regulated in accordance with form chamber (12) pressure.

Description

Die Erfindung betrifft eine Hydroformpresse zur Herstellung von Formteilen durch Innenhochdruckumformung, mit einem Pressengehäuse aus einem Außenrohr und einem Innenrohr, die ineinandergesteckt und durch Schrumpfung miteinander verbunden sind, sowie einer in das Innenrohr eingesetzten Werkzeugträgereinheit, die aus zwei etwa halbschalenförmigen Werkzeugträgern für ein durch ein Oberwerkzeug und ein Unterwerkzeug gebildetes Werkzeug besteht, das eine mit einem hydrostatischen Innendruck beaufschlagbare Formkammer zur Verformung eines Werkstücks zu einem Formteil enthält, wobei zwischen dem oberen Werkzeugträger und dem Oberwerkzeug mindestens ein oberer sowie zwischen dem unteren Werkzeugträger und dem Unterwerkzeug mindestens ein unterer mit einem Druckmedium beaufschlagbarer Kurzhubzylinder mit einem Druckkolben zum Schließen der Werkzeuge während des Umformprozesses angeordnet ist.The The invention relates to a hydroforming press for the production of moldings by hydroforming, with a press housing an outer tube and an inner tube which is nested and by shrinkage connected to each other, and one inserted into the inner tube Tool carrier unit, those from two approximately half shell-shaped tool carriers for a formed by an upper tool and a lower tool tool exists, which can be acted upon by a hydrostatic internal pressure Forming chamber for deformation of a workpiece to a molding contains, wherein between the upper tool carrier and the upper tool at least one upper and between the lower tool carrier and the lower tool at least one lower with a pressure medium actable Kurzhubzylinder with a pressure piston to close the Tools during the forming process is arranged.

Bei einer in der DE 103 34 660 B3 beschriebenen Hydroformpresse dieser Art ist es nicht zu vermeiden, daß beim Umformprozeß durch den hydrostatischen Innendruck des Druckmediums in der Formkammer Verformungen, insbesondere Durchbiegungen an den Druckkolben der mit einem Druckmedium beaufschlagbaren Kurzhubzylinder zum Schließen des Werkzeugs beim Umformprozeß auftreten. Gleichzeitig mit den Verformungen an den Druckkolben der Kurzhubzylinder treten Verformungen, insbesondere Durchbiegungen am Ober- und Unterwerkzeug des Umformwerkzeugs auf, die Maßungenauigkeiten der hergestellten Formteile zur Folgen haben.At one in the DE 103 34 660 B3 described hydroforming press of this type, it is unavoidable that occur during the forming process by the hydrostatic internal pressure of the pressure medium in the mold chamber deformations, in particular deflections of the pressure piston acted upon by a pressure medium Kurzhubzylinder for closing the tool during the forming process. Simultaneously with the deformations on the pressure piston of the short stroke cylinder occur deformations, in particular deflections on the upper and lower tool of the forming tool, the dimensional inaccuracies of the molded parts to follow.

Der Erfindung liegt die Aufgabe zugrunde, die Konstruktion der gattungsgemäßen Hydroformpresse dahingehend zu verbessern, daß Verformungen des Ober- und des Unterwerkzeuges des Werkzeugs sowie der Druckkolben der Kurzhubzylinders zum Schließen des Werkzeugs beim Umformprozeß vermieden werden.Of the Invention is based on the object, the construction of the generic hydroforming press to improve that deformations the upper and lower tool of the tool and the pressure piston the short-stroke cylinder to close of the tool during the forming process avoided become.

Diese Aufgabe wird erfindungsgemäß gelöst durch eine Hydroformpresse mit den Merkmalen des Patentanspruchs 1.These The object is achieved by a hydroforming press having the features of patent claim 1.

Die Unteransprüche beinhalten vorteilhafte und zweckmäßige Weiterbildungen der Erfindung.The under claims include advantageous and expedient developments of the invention.

Der Erfindungsgedanke beruht darauf, den Betriebsdruck des flüssigen Mediums zum Verformen eines Werkstücks, der auf das Werkzeug und das Gehäuse der Hydroformpresse wirkt, zu kompensieren und damit zu Verformungen führende Biegebeanspruchungen der Hydroformpresse auszuschalten. Die Kompensation des Betriebsdruckes des Umformmediums wird erreicht durch ein Pressengehäuse, das aus zwei ineinandergesteckten Rohren besteht, wobei das Außenrohr zum Erzielen einer Gegenvorspannung auf das Innenrohr aufgeschrumpft ist, ferner durch die Verwendung eines aus einem Oberwerkzeug und einem Unterwerkzeug bestehenden Werkzeugs, wobei zwischen dem Oberwerkzeug und dem in das Innenrohr des Pressengehäuses eingesetzten, halbschalenförmigen oberen Werkzeugträger sowie zwischen dem Unterwerkzeug und dem in dem Innenrohr des Pressengehäuses sitzenden, halbschalenförmigen unteren Werkzeugträger jeweils ein mit einem Druckmedium beaufschlagbarer Kurzhubzylinder mit einem Druckkolben zum Aufbringen einer auf das Oberwerkzeug und das Unterwerkzeug wirkenden Schließkraft beim Umformprozeß und zum Aufbringen eines auf das Ober- und das Unterwerkzeug wirkenden Gegendruckes zum Betriebsdruck des Umformmediums angeordnet ist, sowie durch die Anordnung von mit einem Druckmedium beaufschlagbaren Druckkissen zwischen den Druckkolben des oberen und des unteren Kurzhubzylinders einerseits sowie dem Ober- und dem Unterwerkzeug andererseits.Of the The idea of the invention is based on the operating pressure of the liquid medium for deforming a workpiece, the on the tool and the housing The hydroforming press acts to compensate and thus to deformations premier Turn off bending stresses of the hydroforming press. The compensation the operating pressure of the forming medium is achieved by a press housing, the consists of two nested tubes, the outer tube Shrunk to achieve a counter-bias on the inner tube is further, by the use of an upper tool and a lower tool consisting of between the upper tool and the inserted into the inner tube of the press housing, shell-shaped upper tool carrier and between the lower tool and the person sitting in the inner tube of the press housing, half-shell lower tool carrier one each acted upon with a pressure medium Kurzhubzylinder with a pressure piston for applying one to the upper tool and the lower tool acting closing force in the forming process and the Applying a counterpressure acting on the upper and the lower tool is arranged to the operating pressure of the forming medium, and by the arrangement of pressurizable with a pressure medium pressure pad between the pressure pistons of the upper and lower Kurzhubzylinders on the one hand, and the top and bottom tools on the other.

Die erfindungsgemäße Hydroformpresse ist nachstehend anhand einer Querschnittdarstellung erläutert.The Hydroforming press according to the invention is explained below with reference to a cross-sectional view.

Das Gehäuse 2 der in der Zeichnungsfigur dargestellten Hydroformpresse 1 zur Herstellung von Formteilen durch Innenhochdruckumformung besteht aus einem Außenrohr 3 und einem Innenrohr 4, die ineinandergesteckt und durch Schrumpfung miteinander verbunden sind. In die Bohrung 5 des Innenrohres 4 ist eine Werkzeugträgereinheit 6 eingesetzt, die zum Werkstückwechsel aus dem Gehäuse 2 herausfahrbar ist.The housing 2 the hydroforming press shown in the drawing figure 1 for the production of molded parts by hydroforming consists of an outer tube 3 and an inner tube 4 which are nested and connected by shrinkage. Into the hole 5 of the inner tube 4 is a tool carrier unit 6 used to change the workpiece from the housing 2 is herausfahrbar.

Die Werkzeugträgereinheit 6 besteht aus zwei etwa halbschalenförmigen Werkzeugträgern 7, 8 für ein durch ein Oberwerkzeug 10 und ein Unterwerkzeug 11 gebildetes Werkzeug 9, das eine mit einem hydrostatischen Innendruck beaufschlagbare Formkammer 12 zur Verformung eines Werkstücks 13 zu einem Formteil enthält.The tool carrier unit 6 consists of two approximately half-shell-shaped tool carriers 7 . 8th for one through an upper tool 10 and a lower tool 11 formed tool 9 , which is a mold chamber which can be subjected to a hydrostatic internal pressure 12 for deformation of a workpiece 13 to a molding contains.

Zwischen dem oberen Werkzeugträger 7 und dem Oberwerkzeug 10 sowie zwischen dem unteren Werkzeugträger 8 und dem Unterwerkzeug 11 ist jeweils ein mit einem Druckmedium, beispielsweise Öl beaufschlagbarer Kurzhubzylinder 14, 15 mit einem in einer Zylinderbohrung 16, 17 im oberen Werkzeugträger 7 und im unteren Werkzeugträger 8 verschiebbaren Druckkolben 18, 19 zum Schließen des Oberwerkzeugs 10 und des Unterwerkzeugs 11 mit der Formkammer 12 angeordnet, die während des Umformprozesses mit einem Druckmedium, beispielsweise Wasser oder Öl beaufschlagt wird.Between the upper tool carrier 7 and the upper tool 10 and between the lower tool carrier 8th and the lower tool 11 is in each case one with a pressure medium, such as oil acted upon Kurzhubzylinder 14 . 15 with one in a cylinder bore 16 . 17 in the upper tool carrier 7 and in the lower tool carrier 8th sliding pressure piston 18 . 19 to close the upper tool 10 and the lower tool 11 with the molding chamber 12 arranged, which is acted upon during the forming process with a pressure medium, such as water or oil.

Zwischen dem Druckkolben 18 des oberen Kurzhubzylinders 14 und dem Oberwerkzeug 10 sowie zwischen dem Druckkolben 19 des unteren Kurzhubzylinders 15 und dem Unterwerkzeug 11 ist jeweils ein mit einem Druckmedium beaufschlagbares Druckkissen 20, 21 angeordnet.Between the pressure piston 18 of the upper one short-stroke cylinder 14 and the upper tool 10 as well as between the pressure piston 19 of the lower short stroke cylinder 15 and the lower tool 11 is in each case a pressurizable with a pressure medium pressure pad 20 . 21 arranged.

Die Druckkissen 20, 21 dienen zur Kompensation des auf die Druckkolben 18, 19 der beiden Kurzhubzylinder 14, 15 sowie das Ober- und Unterwerkzeug 10, 11 wirkenden Innendrucks der Formkammer 12 und verhindern eine Biegeverformung des Ober- und des Unterwerkzeugs 10, 11.The pressure pads 20 . 21 serve to compensate for the pressure piston 18 . 19 the two short-stroke cylinders 14 . 15 as well as the upper and lower tool 10 . 11 acting internal pressure of the molding chamber 12 and prevent bending deformation of the upper and lower tool 10 . 11 ,

Die Druckkissen 20, 21 sind in die Druckkolben 18, 19 des oberen und des unteren Kurzhubzylinders 14, 15 integriert und gegen das Ober- und das Unterwerkzeug 10, 11 abgedichtet.The pressure pads 20 . 21 are in the pressure pistons 18 . 19 of the upper and lower short-stroke cylinders 14 . 15 integrated and against the upper and the lower tool 10 . 11 sealed.

Es besteht ferner die Möglichkeit, die Druckkissen 20, 21 in das Oberwerkzeug 10 und das Unterwerkzeug 11 oder jeweils in die Druckkolben 18, 19 der Kurzhubzylinder 14, 15 sowie das Ober- und das Unterwerkzeug 10, 11 zu integrieren.There is also the possibility of the pressure pad 20 . 21 in the upper tool 10 and the lower tool 11 or in each case in the pressure piston 18 . 19 the short-stroke cylinder 14 . 15 as well as the upper and the lower tool 10 . 11 to integrate.

Der Druck, mit dem die Druckkissen 20, 21 beaufschlagt werden, ist in Abhängigkeit vom Innendruck der Formkammer 12 regelbar.The pressure with which the pressure pads 20 . 21 be acted upon, is a function of the internal pressure of the molding chamber 12 adjustable.

11
HydroformpresseHydroforming press
22
Gehäuse von 1 Housing of 1
33
Außenrohr von 2 Outer tube of 2
44
Innenrohr von 2 Inner tube of 2
55
Bohrung von 4 Bore of 4
66
WerkzeugträgereinheitTool carrier unit
77
Werkzeugträger von 6 Tool carrier of 6
88th
Werkzeugträger von 6 Tool carrier of 6
99
WerkzeugTool
1010
Oberwerkzeug von 9 Upper tool of 9
1111
Unterwerkzeug von 9 Lower tool of 9
1212
Formkammer von 9 Form chamber of 9
1313
Werkstückworkpiece
1414
KurzhubzylinderShort stroke
1515
KurzhubzylinderShort stroke
1616
Zylinderbohrung von 7 Cylinder bore of 7
1717
Zylinderbohrung von 8 Cylinder bore of 8th
1818
Druckkolben von 14 Pressure piston of 14
1919
Druckkolben von 15 Pressure piston of 15
2020
Druckkissencaul
2121
Druckkissencaul

Claims (3)

Hydroformpresse zur Herstellung von Formteilen durch Innenhochdruckumformung, mit einem Pressengehäuse aus einem Außenrohr und einem Innenrohr, die ineinandergesteckt und durch Schrumpfung miteinander verbunden sind, sowie einer in das Innenrohr eingesetzten Werkzeugträgereinheit, die aus zwei etwa halbschalenförmigen Werkzeugträgern für ein durch ein Oberwerkzeug und ein Unterwerkzeug gebildetes Werkzeug besteht, das eine mit einem hydrostatischen Innendruck beaufschlagbare Formkammer zur Verformung eines Werkstücks zu einem Formteil enthält, wobei zwischen dem oberen Werkzeugträger und dem Oberwerkzeug mindestens ein oberer sowie zwischen dem unteren Werkzeugträger und dem Unterwerkzeug mindestens ein unterer mit einem Druckmedium beaufschlagbarer Kurzhubzylinder mit einem Druckkolben zum Schließen der Werkzeuge während des Umformprozesses angeordnet ist, gekennzeichnet durch mindestens ein mit einem Druckmedium beaufschlagbares Druckkissen (20), das zwischen dem Druckkolben (18) des oberen Kurzhubzylinders (14) und dem Oberwerkzeug (10) angeordnet ist, sowie durch mindestens ein mit einem Druckmedium beaufschlagbares Druckkissen (21), das zwischen dem Druckkolben (19) des unteren Kurzhubzylinders (15) und dem Unterwerkzeug (11) angeordnet ist, zur Kompensation des auf die Druckkolben (18, 19) sowie das Ober- und das Unterwerkzeug (10, 11) wirkenden Innendrucks der Formkammer (12).Hydroforming press for the production of moldings by hydroforming, with a press housing of an outer tube and an inner tube, which are inserted into one another and connected by shrinkage, and a tool carrier unit inserted into the inner tube, consisting of two approximately half-shell-shaped tool carriers for a formed by an upper tool and a lower tool Tool which contains a mold chamber which can be acted upon by a hydrostatic internal pressure for deforming a workpiece to a molded part, wherein between the upper tool carrier and the upper tool at least one upper and between the lower tool carrier and the lower tool at least one lower with a pressure medium acted upon Kurzhubzylinder with a pressure piston is arranged for closing the tools during the forming process, characterized by at least one pressurizable with a pressure medium pressure pad ( 20 ), which between the pressure piston ( 18 ) of the upper short-stroke cylinder ( 14 ) and the upper tool ( 10 ) is arranged, as well as by at least one pressurizable with a pressure medium pressure pad ( 21 ), which between the pressure piston ( 19 ) of the lower short-stroke cylinder ( 15 ) and the lower tool ( 11 ) is arranged, for the compensation of the pressure piston ( 18 . 19 ) as well as the upper and the lower tool ( 10 . 11 ) acting internal pressure of the molding chamber ( 12 ). Hydroformpresse nach Anspruch 1, dadurch gekennzeichnet, daß die Druckkissen (20, 21) in die Druckkolben (18, 19) des oberen und des unteren Kurzhubzylinders (14, 15) und/oder in das Oberwerkzeug (10) sowie das Unterwerkzeug (11) integriert sind.Hydroforming press according to claim 1, characterized in that the pressure pads ( 20 . 21 ) into the pressure pistons ( 18 . 19 ) of the upper and lower Kurzhubzylinders ( 14 . 15 ) and / or in the upper tool ( 10 ) as well as the lower tool ( 11 ) are integrated. Hydroformpresse nach Anspruch 1 und 2, gekennzeichnet durch eine Regelbarkeit des Druckes des Druckmediums, mit dem die Druckkissen (20, 21) beaufschlagt werden, in Abhängigkeit vom Innendruck der Formkammer (12).Hydroforming press according to claim 1 and 2, characterized by a controllability of the pressure of the pressure medium, with which the pressure pad ( 20 . 21 ), depending on the internal pressure of the molding chamber ( 12 ).
DE102006003981A 2006-01-27 2006-01-27 Hydroforming press for the production of molded parts by hydroforming Expired - Fee Related DE102006003981B4 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE102006003981A DE102006003981B4 (en) 2006-01-27 2006-01-27 Hydroforming press for the production of molded parts by hydroforming
ES07001287T ES2306438T3 (en) 2006-01-27 2007-01-22 HYDRAULIC CONFORMATION PRESS OF PREFORMED PARTS BY CONFORMATION AT HIGH INTERNAL PRESSURE.
AT07001287T ATE400377T1 (en) 2006-01-27 2007-01-22 HYDROFORMING PRESS FOR PRODUCING MOLDED PARTS BY INTERNAL HIGH PRESSURE FORMING
EP07001287A EP1813363B1 (en) 2006-01-27 2007-01-22 Hydroforming press for manufacturing articles by internal high-pressure forming
DE502007000033T DE502007000033D1 (en) 2006-01-27 2007-01-22 Hydroforming press for the production of molded parts by hydroforming
JP2007018046A JP2007196292A (en) 2006-01-27 2007-01-29 Hydroforming press for manufacturing article by internal high-pressure forming
KR1020070008686A KR20070078737A (en) 2006-01-27 2007-01-29 Hydroforming press for manufacturing formed parts by internal high pressure deformation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006003981A DE102006003981B4 (en) 2006-01-27 2006-01-27 Hydroforming press for the production of molded parts by hydroforming

Publications (2)

Publication Number Publication Date
DE102006003981A1 DE102006003981A1 (en) 2007-08-09
DE102006003981B4 true DE102006003981B4 (en) 2010-12-09

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Application Number Title Priority Date Filing Date
DE102006003981A Expired - Fee Related DE102006003981B4 (en) 2006-01-27 2006-01-27 Hydroforming press for the production of molded parts by hydroforming
DE502007000033T Active DE502007000033D1 (en) 2006-01-27 2007-01-22 Hydroforming press for the production of molded parts by hydroforming

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE502007000033T Active DE502007000033D1 (en) 2006-01-27 2007-01-22 Hydroforming press for the production of molded parts by hydroforming

Country Status (6)

Country Link
EP (1) EP1813363B1 (en)
JP (1) JP2007196292A (en)
KR (1) KR20070078737A (en)
AT (1) ATE400377T1 (en)
DE (2) DE102006003981B4 (en)
ES (1) ES2306438T3 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE526096T1 (en) * 2009-02-20 2011-10-15 Theodor Graebener Gmbh & Co Kg HYDROFORMING TOOL
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EP1813363B1 (en) 2008-07-09
JP2007196292A (en) 2007-08-09
DE102006003981A1 (en) 2007-08-09
KR20070078737A (en) 2007-08-01
DE502007000033D1 (en) 2008-08-21
ES2306438T3 (en) 2008-11-01
EP1813363A1 (en) 2007-08-01

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