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EP0739663B1 - Machine pour former des pièces - Google Patents

Machine pour former des pièces Download PDF

Info

Publication number
EP0739663B1
EP0739663B1 EP96104110A EP96104110A EP0739663B1 EP 0739663 B1 EP0739663 B1 EP 0739663B1 EP 96104110 A EP96104110 A EP 96104110A EP 96104110 A EP96104110 A EP 96104110A EP 0739663 B1 EP0739663 B1 EP 0739663B1
Authority
EP
European Patent Office
Prior art keywords
pressure element
counter
workpiece
wedge
baseplate
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 - Lifetime
Application number
EP96104110A
Other languages
German (de)
English (en)
Other versions
EP0739663A2 (fr
EP0739663A3 (fr
Inventor
Hans Dipl.-Ing. Klingel (Fh)
Werner Dipl.-Ing. Erlenmaier
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.)
Trumpf SE and Co KG
Original Assignee
Trumpf SE 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 Trumpf SE and Co KG filed Critical Trumpf SE and Co KG
Publication of EP0739663A2 publication Critical patent/EP0739663A2/fr
Publication of EP0739663A3 publication Critical patent/EP0739663A3/fr
Application granted granted Critical
Publication of EP0739663B1 publication Critical patent/EP0739663B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B21D22/02—Stamping using rigid devices or tools
    • B21D22/06—Stamping using rigid devices or tools having relatively-movable die 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

Definitions

  • the invention relates to a processing machine according to the preamble of claim 1.
  • Processing machines in the form of are known, for example Presses for forming sheet metal on which one half of the tool provided with a pressure element in the form of a press stamp is the hydraulically driven workpiece to be machined in a stationary die of the second acting as a counter-pressure element Half of the tool presses.
  • the stamp penetrates with a defined Deep into the resting matrix.
  • the deformation of the Required relative movement between the stamp and the workpiece support on the die of the processing machine solely on the movement of the stamp.
  • Unfortunately has accordingly the stamp both when entering the die as well as on its return stroke a relative long travel distance. Correspondingly, it takes a lot of time individual processing operation.
  • the invention lies on the basis of the latter prior art based on the task, previously known processing machines to simplify constructively.
  • this object is achieved by the combination of features solved by claim 1.
  • the one required for workpiece machining Relative movement between the pressure element and the counter pressure element arises on such processing machines in a known manner Way as resultant of simultaneous and opposing Movements of pressure element and counter pressure element.
  • By dividing the required total relative movement into two temporally parallel partial movements can be made for the processing time required for the individual machining process is significant shorten.
  • to which the drive of the counter pressure element is coupled is a movement of the workpiece in the direction of the movement axis of pressure element and counter pressure element, can the amount of workpiece movement through appropriate drive configuration keep it small.
  • the components of the invention structurally simple the redirected gearbox is in flat contact together. Accordingly, the deflection gear transfer large driving forces. The ones on the gear resulting translation ratios can be easily by appropriate Choice of wedge angles can be set. Except through her The transmission solution according to the invention is of simple construction due to their robustness and low maintenance.
  • the counter pressure element on a substantially base plate running perpendicular to its direction of movement provided with window-like recesses and with the base plate in a corresponding pot-like receptacle of the concerned Tool half is used, being in each of the window-like Recesses with one of its wedge surfaces on one Counter wedge surface of the base plate supporting cross slide in Is guided displaceably towards the base plate level.
  • the parallel extending to the direction of movement of the counter pressure element End face of the base plate ensures in cooperation with the on it adjacent wall surface of the pot-like receptacle for a defined Position of the counter pressure element transverse to its direction of movement as well as for an exact guidance of the shifted in the direction of movement Back pressure element.
  • By using multiple cross slides for power transmission to the base plate or on the this counter pressure element is attached with a corresponding arrangement the window-like recesses in force the base plate at points evenly distributed over its circumference reached. Otherwise to be feared tilting movements of the Base plate and thus the counter pressure element or an otherwise pressure on the base plate in the direction on the wall surface of the pot-like receptacle are thereby avoided.
  • the counter-pressure element releasably with the thrust piece, if necessary is connected to the base plate. If necessary, easily replace the counter pressure element while the others Components of the reversing gear or the other parts of the concerned Half of the tool also to carry out after the conversion used to machine the workpiece can be.
  • FIG. 1 to 3 comprises a tool half 1 of the forming tool shown, a base part 2 and a screwed cover part 3.
  • a counter pressure element in the form of a stamp 4 in Direction of a double arrow 5 guided.
  • the stamp 4 in a neck-like approach 6 one serving as a thrust piece base plate 7. It supports the stamp 4 in the axial direction on the one hand over the lateral surface a conical outer collar 8 on a corresponding Counter surface of the nozzle-like approach 6.
  • the stamp 4 In the axial opposite direction is the stamp 4 on a threaded piece 9, which itself with an external thread from the side of the conical outer collar 8 forth in an internally threaded bore of the nozzle-like Approach 6 can be screwed.
  • the bottom part 2 of the tool half 1 offers a inside pot-like receptacle 10 for the base plate 7 with the attached Stamp 4.
  • An annular rubber buffer 11 is concentric with the stamp 4 and under slight bias towards the double arrow 5 between the base plate 7 and the lid part 3 of tool half 1 inserted.
  • the base plate 7 Three window-like recesses 12 are provided.
  • a cross slide 13 in the form of a double wedge in the direction of the double arrow 14 slidably guided. They support themselves with their base areas Cross slide 13 on the bottom of the pot-like receptacle 10 of the bottom part 2 from.
  • the wedge surfaces 15 of the cross slide facing the punch 4 13 lie on corresponding counter wedge surfaces 16 of the Base plate 7 on. Point on the side facing away from the stamp 4 the cross slide 13 each have a counter wedge surface 17, which is in contact with a wedge surface 18 of a longitudinal slide 19.
  • the longitudinal slide 19 has a cylindrical part its end facing the bottom of the pot-like receptacle 10 three approaches are provided. Each of these approaches protrudes the window-like recesses 12 into the base plate 7 and are on their opposite the transverse slide 13 opposite Pages beveled to form the wedge surfaces 18.
  • the cylindrical trained longitudinal slide 19 is by a concentric with it Guide surface 20 of the lid part 3 in the direction of Double arrow 5 out.
  • the pot-like receptacle 10 side facing away from the longitudinal slide 19 has a bearing surface 21 for one shown in dashed lines in FIGS. 1 and 2 Workpiece in the form of a pre-punched sheet 22.
  • a second Tool half 23 in the form of a die serving as a pressure element with a ring opening 24 assigned to the stamp 4.
  • the sheet 22 itself is in the direction of the axis of movement of the die 23 and of the stamp 4 moved over a short path.
  • the Length of the displacement of the sheet 22 is limited to 1 shown projection of the longitudinal slide 19 relative to the this surrounding area on the upper side of the cover part 3.
  • the stroke movement is Base plate 7 connected to a compression of the rubber buffer 11.
  • the base plate 7 Under the action of those exerted by the rubber buffer 11 Restoring force moved back to the starting position shown in FIG. 1. This is associated with a radial displacement of the cross slide 13 outwards and as a result the longitudinal slide is raised 19 in the starting position according to Fig. 1.
  • the sheet 22 is in the area of the now created passage stripped from the stamp 4.
  • the die 23 indicated in FIGS. 1 and 2 and the stamp 4 with the remaining parts of the relevant tool half 1 can be used in the tool holders on a punching machine.
  • the die 23 on the ram of the Punching machine and the tool half 1 with the stamp 4 in the otherwise tool holder intended for receiving the punching lower tool be determined. That way leaves a punching machine quickly and easily into a processing machine convert for forming workpieces.
  • the one to be processed Sheet metal can be provided on the punching machines anyway Workpiece feed quickly and precisely in the respective machining position aligned and in the next machining position be moved so that there are high processing speeds let achieve.
  • the stamp 4 can be replaced with little effort. Since the die 23 with its ring opening 24 in general is matched to the dimensions of the stamp 4 used in each case, with the change of the stamp 4 usually a matrix change accompanied.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Presses And Accessory Devices Thereof (AREA)
  • Punching Or Piercing (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Forging (AREA)
  • Threshing Machine Elements (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Claims (6)

  1. Machine à façonner pour déformer des pièces (22), comprenant un outil composé de deux demi-outils (1, 23) disposés sur des côtés mutuellement opposés de la pièce (22) à façonner, l'un (23) des demi-outils présentant au moins un élément de pression (23) déplaçable contre la pièce (22) et agissant sur elle et l'autre demi-outil (1) présentant au moins un élément de contre-pression (4), coopérant avec l'élément de pression (23) pour façonner la pièce (22), élément de contre-pression qui est guidé et peut être mû pour être déplacé contre la pièce (22), et le déplacement de l'élément de pression (23) contre la pièce (22) produisant, par l'intermédiaire de la pièce (22) et/ou par l'intermédiaire d'une surface d'appui de pièce, l'entraínement de l'élément de contre-pression (4) en sens contraire à l'élément de pression (23), caractérisée en ce que, sur le demi-outil (1) de l'élément de contre-pression (4), est guidé au moins un poussoir longitudinal (19), pouvant être déplacé en translation par l'élément de pression (23) déplacé contre la pièce (22) et dans le même sens que cet élément, poussoir longitudinal qui se rétrécit en forme de coin en direction de son extrémité éloignée de la pièce (22), avec formation d'au moins une face de coin (18), et s'appuie par cette face sur une face de coin antagoniste (17) correspondante d'une coulisse transversale (13) déplaçable en coulissement transversalement au poussoir longitudinal (19), et que la coulisse transversale (13) se rétrécit en forme de coin, en direction de son extrémité éloignée du poussoir longitudinal (19), également avec formation d'une face de coin (15), et s'appuie par cette face (15) sur une face de coin antagoniste (16) correspondante solidaire de l'élément de contre-pression (4) ou prévue sur celui-ci.
  2. Machine à façonner selon la revendication 1, caractérisée en ce que l'élément de contre-pression (4) est disposé sur une pièce de poussée (7) coulissante et guidée du demi-outil (1) concerné.
  3. Machine à façonner selon une des revendications précédentes, caractérisée en ce que l'élément de contre-pression (4) est prévu sur une plaque de base (7), s'étendant pour l'essentiel perpendiculairement à sa direction de mouvement et pourvue d'évidements semblables à des fenêtres (12), et est disposé ensemble avec la plaque de base (7) dans un logement en cuvette (10) approprié du demi-outil (1) concerné, dans chacun des évidements semblables à des fenêtres (12) étant guidée pour pouvoir coulisser, en direction du plan de la plaque de base, une coulisse transversale (13) s'appuyant par l'une (15) de ses faces de coin (15, 17) sur une face de coin antagoniste (16) de la plaque de base (7).
  4. Machine à façonner selon une des revendications précédentes, caractérisée en ce que l'élément de contre-pression (4) est déplaçable en direction de la pièce (22) à l'encontre d'une force de ressort.
  5. Machine à façonner selon une des revendications précédentes, caractérisée en ce que la plaque de base (7) est appuyée, en direction de la pièce (22), sur un tampon élastique en caoutchouc (11).
  6. Machine à façonner selon une des revendications précédentes, caractérisée en ce que l'élément de contre-pression (4) est relié de façon amovible à la pièce de poussée (7), éventuellement à la plaque de base (7).
EP96104110A 1995-04-24 1996-03-14 Machine pour former des pièces Expired - Lifetime EP0739663B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29506877U 1995-04-24
DE29506877U DE29506877U1 (de) 1995-04-24 1995-04-24 Bearbeitungsmaschine insbesondere zum Umformen von Werkstücken

Publications (3)

Publication Number Publication Date
EP0739663A2 EP0739663A2 (fr) 1996-10-30
EP0739663A3 EP0739663A3 (fr) 1997-08-27
EP0739663B1 true EP0739663B1 (fr) 2000-05-24

Family

ID=8007217

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96104110A Expired - Lifetime EP0739663B1 (fr) 1995-04-24 1996-03-14 Machine pour former des pièces

Country Status (4)

Country Link
US (1) US5778721A (fr)
EP (1) EP0739663B1 (fr)
JP (1) JPH08323432A (fr)
DE (2) DE29506877U1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0888833A1 (fr) * 1997-07-04 1999-01-07 Humard Automation SA Procédé et presse d'étampage différentiel et/ou sèquentiel selon au moins deux directions différentes
US20040065135A1 (en) * 2002-10-04 2004-04-08 Peterhansel Carl R. Expandable forming tool
DE102005036775B4 (de) * 2004-08-09 2007-01-25 Schuler Pressen Gmbh & Co. Kg Umformeinrichtung mit Auswerfer und Verfahren zum Auswerfen von Werkstücken
US7793530B2 (en) * 2007-06-01 2010-09-14 Wilson Tool International Inc. Durable enlarged forming tool technology
CN101693339B (zh) * 2009-10-16 2011-05-11 苏州轴承厂有限公司 平面推力轴承保持架的生产方法及其专用模具
CN101767148B (zh) * 2009-12-30 2012-05-23 吉林省元隆达工装设备有限公司 向上折边斜楔机构
CN103286189A (zh) * 2013-06-07 2013-09-11 无锡微研有限公司 模具侧向切边机构
CN103990708B (zh) * 2014-06-05 2016-04-13 昆山电子羽电业制品有限公司 一种凸包冲压模具
CN103990706B (zh) * 2014-06-05 2016-01-20 昆山电子羽电业制品有限公司 一种显示器背板凸包的冲压模具
CN105328020B (zh) * 2014-08-13 2017-09-29 中国航发常州兰翔机械有限责任公司 火焰筒内前圈用冲压成型工装及其工作方法
CN105328038A (zh) * 2015-11-26 2016-02-17 沈阳黎明航空发动机(集团)有限责任公司 一种胀型模具及其使用方法
CN108213181A (zh) * 2017-12-29 2018-06-29 东莞市天合机电开发有限公司 一种模具方便更换的数字相机底板凹孔冲孔机构
JP6788310B1 (ja) * 2020-06-09 2020-11-25 惇 市村 パンチ用ウレタンクッション
DE102020007893B3 (de) 2020-12-23 2022-06-15 Fritz Stepper GmbH & Co. KG. Bearbeitungsmodul für ein Bearbeitungswerkzeug einer Werkzeugmaschine, Bearbeitungswerkzeug und Werkzeugmaschine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3503630A (en) * 1966-08-01 1970-03-31 Frank J Thomas Angular die set for changing the direction of the tool pressure stroke in a punch press
DE3228734C1 (de) * 1982-07-31 1983-10-20 C. Behrens Ag, 3220 Alfeld Einrichtung zum Herstellen von Durchzuegen an Werkstuecken auf einer Schneidpresse
FR2566293A1 (fr) * 1984-06-22 1985-12-27 Atelier Meca Bureau Etu Luconn Outil de poinconnage, en particulier outil de soyage, a poincon agissant de bas en haut
ES2042037T3 (es) * 1988-10-05 1993-12-01 Sollac Procedimiento y dispositivo de conformado de una pieza de chapa, especialmente para realizar una pantalla de tubo catodico obtenida segun este procedimiento.
FR2691653B1 (fr) * 1992-05-27 1994-08-26 Isoform Dispositif d'emboutissage de matériaux en feuille sur une matrice de formage en matériau élastique.

Also Published As

Publication number Publication date
US5778721A (en) 1998-07-14
EP0739663A2 (fr) 1996-10-30
DE59605281D1 (de) 2000-06-29
EP0739663A3 (fr) 1997-08-27
JPH08323432A (ja) 1996-12-10
DE29506877U1 (de) 1995-06-22

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