EP1071528A1 - Machine-outil a plusieurs etages travaillant le metal par formage, munie de blocs combines d'outils - Google Patents

Machine-outil a plusieurs etages travaillant le metal par formage, munie de blocs combines d'outils

Info

Publication number
EP1071528A1
EP1071528A1 EP99907224A EP99907224A EP1071528A1 EP 1071528 A1 EP1071528 A1 EP 1071528A1 EP 99907224 A EP99907224 A EP 99907224A EP 99907224 A EP99907224 A EP 99907224A EP 1071528 A1 EP1071528 A1 EP 1071528A1
Authority
EP
European Patent Office
Prior art keywords
clamping
tool combination
combination block
tool
forming machine
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.)
Granted
Application number
EP99907224A
Other languages
German (de)
English (en)
Other versions
EP1071528B1 (fr
Inventor
Hermann Zanzerl
Markus Moser
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.)
Hatebur Umformmaschinen AG
Original Assignee
Hatebur Umformmaschinen AG
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 Hatebur Umformmaschinen AG filed Critical Hatebur Umformmaschinen AG
Publication of EP1071528A1 publication Critical patent/EP1071528A1/fr
Application granted granted Critical
Publication of EP1071528B1 publication Critical patent/EP1071528B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J9/00—Forging presses
    • B21J9/02—Special design or construction
    • B21J9/022—Special design or construction multi-stage forging presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/02—Dies or mountings therefor
    • B21J13/03—Die mountings

Definitions

  • the present invention relates to a multi-stage forming machine with tool combination blocks, as defined in the preamble of independent claim 1.
  • DE-A-197 22 228 discloses a multi-stage forming machine in which each tool is arranged in a tool cassette which is held in the forming machine by means of a clamping device.
  • the clamped tool cassettes can be replaced relatively quickly if necessary, so that the downtime of the forming machine can be reduced considerably.
  • a tool change still takes a comparatively long time, since the fine adjustment of the mutual distance between two opposing interacting tools takes place on the forming machine.
  • EP-B-0 354 428 describes a multi-stage forming machine which comprises a first tool combination block with, for example, five die blocks attached to a stationary machine body and a second tool combination block with, for example, five stamp blocks attached to a press slide that can be moved back and forth in the direction of this first tool combination block .
  • the tool combination - 2 - blocks are interchangeable as a whole and adjustable outside the forming machine. In order to obtain sufficient tension, the tool combination blocks are screwed to the machine body or press slide. This has the disadvantage that a quick exchange of tool combination blocks is not possible, since the operating personnel have to work with auxiliary tools from the outside.
  • the invention is based on the following object.
  • a multi-stage forming machine of the type mentioned at the outset is to be created, in which the downtime of the forming machine when changing tools can be considerably reduced with respect to comparable forming machines of the prior art.
  • a multi-stage forming machine comprises a first and second tool combination block, at least one of which has at least one clamping tab with which it is attached from above via a clamping cam attached directly or indirectly to a stationary machine body or to a press slide is directly or indirectly attached to the machine body or to the press slide.
  • the clamping tab and the clamping cam are designed such that the dead weight of the tool combination block and / or a clamping force acting on the tool combination block in a vertical direction results in an elastic tensioning of the tool combination block and the machine body or - 3 -
  • the first and second tool combination blocks have interacting tool individual blocks and are attached to the stationary machine body or to the press slide, which can be moved back and forth in the direction of the first tool combination block.
  • the replacement of an entire tool combination block allows the mutual spacing of two opposing interacting tool individual blocks to be fine-tuned outside the forming machine, while it can still be operated with the old tool combination block.
  • the downtime can thus be limited to removing the old tool combination block and actually attaching the new tool combination block.
  • both tool combination blocks are provided with at least one clamping tab and are attached directly or indirectly to the machine body or press slide. - 4 - However, it is also conceivable that one tool combination block is attached in a different way.
  • the at least one clamping tab mentioned is arranged in the upper edge region of the tool combination block and in the lower edge area of the tool combination block at least one further clamping tab is arranged, which is attached directly or indirectly to the machine body or to the press slide from above via a further clamping cam.
  • the at least one clamping tab mentioned is arranged in the upper edge region of the tool combination block and in the lower edge region of the tool combination block there is at least one clamping cam projecting downwards, which is attached to a directly or indirectly on the machine body or on the press slide, upwards open flap is pushed in.
  • the one or more clamping flaps and / or the one or more clamping cams have a bearing surface inclined to the vertical for the associated clamping cams or clamping tabs, which is preferably curved, so that when a vertically downward force is exerted on the tool combination block the flap or flaps is or are bent outwards by the assigned flap cam. Due to the elastic bending of the clamping flap (s), a high pretension in the horizontal direction can be generated, which ensures secure, tensioned fastening of the tool combination block, counteracts the occurrence of fretting corrosion and prevents mutual lut exact adjustment of the contact areas makes unnecessary. The curvature of the contact surface prevents edge pressure from being created.
  • At least one of the two tool combination blocks has a plurality of clamping tabs in the upper edge region and / or a plurality of clamping cams protruding downwards are arranged spaced apart in the lower edge region of this tool combination block. This allows the tool combination block to be braced and clamped over a wide range.
  • the tool combination block with clamping tabs or at least one of the tool combination block with clamping tabs preferably has at least one stop, which rests on a stop surface outside the tool combination block at the top.
  • the tool combination block is positioned exactly vertically when it is hooked in and thus defines the maximum clamping force.
  • FIG. 1 shows a part of a multi-stage forming machine according to the invention with a die-side tool combination block and release device in a vertical section;
  • FIG. 2 and 3 detailed sectional views of a clamping tab, stop and clamping cam of the forming machine during hanging; - 6 -
  • Fig. 6 the removed die-side tool combination block of the forming machine
  • FIG. 7 shows a part of the forming machine with a die-side tool combination block and a loosening device in a vertical section
  • FIG. 8 shows a part of the forming machine with a die-side tool combination block and a clamping device in a further vertical sectional view
  • Fig. 10 the removed die-side tool combination block of the forming machine.
  • a multi-stage forming machine comprises a machine body 1 to which a lock plate 5 is fastened by means of screws 15.
  • force absorption wedges 16 (FIG. 4) arranged in wedge recesses 53 (FIG. 5) in the lock plate 5 serve to support the vertical clamping forces that occur.
  • An ejector rod bore 28 and an ejector rod extend through the machine body 1 and the lock plate 5.
  • - 7 - guide 29 (Fig. 4).
  • the lock plate 5 has two elongated clamping cams 52, each of which extends on both sides of a centering housing 12 arranged above the lock plate 5 up to its lateral edge.
  • four upward projecting flaps 51 are attached distributed over its width.
  • a tool combination block 3 with a support plate 32, a centering plate 36, normally five die blocks 35 and a block guide 34 which extends over the entire width is suspended in the lock plate 5.
  • a die block 35 is drawn in FIG the centering plate 36 is attached. The die is clamped using claws 351 and
  • the support plate 32 furthermore has slot-shaped recesses 324 which allow the tool combination block 3 to be inserted and removed while the ejector rods protrude into the region of the support plate 32.
  • a centering pin 11 with a ball head is screwed into the support plate 32 (FIG. 4).
  • the ball head is inserted into the centering housing 12 and, through its special design (FIG. 5), is guided into the desired horizontal position.
  • the tool combination block 3 is generally suspended in the lock plate 5 by means of an external crane device, not shown here.
  • insertion aids 21, 22 are provided on the machine body 1 or on the lock plate 5.
  • the clamping tabs 31 of the tool combination block 3 are hung over the clamping cams 52 of the lock plate 5, while the clamping cams 322 of the tool combination block 3 are inserted into the centering housing 12 between the clamping tabs 51 and the vertical contact surface of the lock plate 5 and the ball head of the centering pin 11.
  • the weight of the tool combination block 3 thus achieves a position in which the stops 33 do not yet rest on the stop surfaces 521 of the clamping cams 52, but the clamping tabs 31 are already minimally elastic due to the clamping cams 52 in the direction of arrow A (FIG. 3) have been bent outwards.
  • the clamping tabs 51 have also been bent elastically outwards by the clamping cams 322.
  • the clamping tabs 31 and 51 are prestressed in this way and exert a horizontal clamping force which clamp the tool combination block 3 and the lock plate 5 and thus indirectly clamp the machine body 1 against one another.
  • the tensioning devices 7 each comprise a tensioning lever 71 which is one at the
  • Lock plate 5 mounted clamping lever axis 73 is rotatable.
  • the tensioning levers 71 can be actuated by means of hydraulic cylinders 74 with plungers 741 and, when actuated by means of screws 20, push the tensioning bracket 72 fastened to the support plate 32 downward. 4, the two extreme positions of a clamping lever 71 are drawn.
  • Bending springs 75 ensure that the tensioning levers 71 are constantly in contact with the plungers 741 of the double-acting hydraulic cylinders 74.
  • the required clamping forces and tensions differ depending on the size of the machine.
  • two clamping devices 7 with a vertical clamping force on the two clamping brackets 72 of 110 kN each, material-dependent deformations of the clamping tabs 31, 51 in the tenths of a millimeter range and a clamping force in the pressing direction of 250 kN were achieved.
  • the clamping devices 7 were designed for clamping forces in the pressing direction of 125 kN or 500 kN.
  • a release device 9 is provided underneath it, which comprises a release lever 91 which can be rotated about a release lever axis 92 and which is mounted on a support 93 fastened to the machine body 1.
  • the release lever 91 can be actuated by means of a hydraulic cylinder 94 with a plunger 941 and, when actuated, presses a lifting piece 95 fastened to the centering plate 36 by means of screws 23.
  • Fig. 1 the two extreme positions of the release lever 91 are drawn.
  • FIGS. 7 to 10 part of the forming machine on the die side.
  • the attachment of a die-side tool combination block 4 to a press slide 2 that can be moved back and forth in the direction of the die-side tool combination block 3 is in principle the same as the attachment of the die-side tool combination block 3 to the machine body 1.
  • a lock plate 6 is fastened to the press slide 2 by means of screws 115. At its upper end, the lock plate 6 has six elongated parts distributed over its width
  • the lock plate 6 has slot-shaped recesses 64 in the other, which allow the insertion and removal of the tool combination block 4, while the tool-side ejector rods protrude into the area of the lock plate 6.
  • the tool combination block 4 is suspended in the lock plate 6 with a wedge-shaped support plate 42, five adjustment wedges 44, an adjustment wedge housing 47 and normally five adjustment plates 46 and five stamp blocks 45.
  • a wedge-shaped support plate 42 five adjustment wedges 44, an adjustment wedge housing 47 and normally five adjustment plates 46 and five stamp blocks 45.
  • only one is attached to the associated adjustment plate 46 by means of screws 124 Stamp block 45 drawn.
  • the punches are clamped by means of claws 451 and claw screws 452.
  • the adjusting plates 46 are fastened to the adjusting wedge housing 47 by means of bolts 126 and nuts 127 screwed into the adjusting wedge housing 47, the adjusting plates 46 having play around the bolts 126 before the nuts 127 are tightened so that they can be aligned with the matrices.
  • the support plate 42 and the adjusting wedge housing 47 are connected by means of screws 117.
  • a centering pin 13 with a ball head is screwed into the lock plate 6 for the horizontal centering of the tool combination block 4 (FIG. 7).
  • the centering housing 14 is guided over the ball head and guided into the desired horizontal position.
  • the tool combination block 4 is again suspended in the lock plate 6 by means of an external crane device, not shown here.
  • the clamping tabs 41 of the tool combination block 4 are hung over the clamping cams 62 of the lock plate 6, while the clamping cams 422 of the tool combination block 4 are inserted between the clamping tabs 61 and the vertical contact surface of the lock plate 6 and the centering housing 14 is guided over the ball head of the centering pin 13.
  • the weight of the tool combination block 4 thus achieves a position in which the stops 43 do not yet rest on the stop surfaces 621 of the clamping cams 62, but the clamping tabs 41 and 61 have already been bent minimally elastically outwards by the clamping cams 62 and 422, respectively .
  • the clamping tabs 41 and 61 are biased in this way and exert a horizontal clamping force that the tool combination block 4 and - 12 -
  • Lock plate 6 and thus indirectly press clamp 2 against each other.
  • the tensioning devices 8 each comprise a tensioning lever 81 which is rotatable about a tensioning lever axis 83 mounted on the lock plate 6.
  • the tensioning levers 81 can be actuated by means of hydraulic cylinders 84 with plungers 841 and, when actuated by means of screws 120, press down the tensioning brackets 82 fastened to the support plate 42. 8, the two extreme positions of a tension lever 81 are drawn. Bending springs 85 ensure that the tensioning levers 81 are constantly in contact with the tappets 841 of the double-acting hydraulic cylinders 84.
  • the required clamping forces and tensions correspond approximately to those for the die-side tool combination block 3.
  • a release device 10 is provided underneath it, which comprises a release lever 101 which is rotatable about a release lever axis 102 and which is mounted on the lock plate 6.
  • the release lever 101 can be actuated by means of a hydraulic cylinder 104 with a plunger 106 and, when actuated, presses the tool combination block 4 upward via the centering housing 14 arranged on the support plate 42.
  • 7 shows the two extreme positions of the release lever 101. - 13 -

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Forging (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Jigs For Machine Tools (AREA)
  • Making Paper Articles (AREA)
  • Motorcycle And Bicycle Frame (AREA)
  • Road Paving Structures (AREA)

Abstract

L'invention concerne une machine-outil à plusieurs étages travaillant le métal par formage, où un tablier (6) est vissé sur un chariot de compression (2). A son extrémité supérieure, le tablier (6) présente six cames de serrage (62) étirées, réparties sur sa largeur. A son extrémité inférieure, il est prévu quatre pattes de serrage en saillie vers le haut. Dans le tablier (6), il est prévu un bloc combiné d'outils (4) suspendu, avec une plaque d'appui (42) cunéiforme. A l'extrémité supérieure de la plaque d'appui (42), il est prévu quatre pattes de serrage (41) réparties sur la largeur, alors que quatre cames de serrage sont formées à l'extrémité inférieure. Les pattes de serrage (41) du bloc combiné d'outils (4) sont suspendues par l'intermédiaire des cames de serrage (62) du tablier (6), alors que les cames de serrage du bloc combiné d'outils (4) sont introduites entre les pattes de serrage et la partie principale du tablier (6). Deux dispositifs de serrage (8) permettent d'exercer une force de serrage agissant dans le sens vertical sur le bloc combiné d'outils (4), qui induit une contrainte du bloc combiné d'outils (4) et du chariot de compression (2) dans le sens horizontal.
EP99907224A 1998-04-17 1999-03-22 Machine-outil a plusieurs etages travaillant le metal par formage, munie de blocs combines d'outils Expired - Lifetime EP1071528B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH88498 1998-04-17
CH88498 1998-04-17
PCT/CH1999/000123 WO1999054071A1 (fr) 1998-04-17 1999-03-22 Machine-outil a plusieurs etages travaillant le metal par formage, munie de blocs combines d'outils

Publications (2)

Publication Number Publication Date
EP1071528A1 true EP1071528A1 (fr) 2001-01-31
EP1071528B1 EP1071528B1 (fr) 2003-05-21

Family

ID=4197423

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99907224A Expired - Lifetime EP1071528B1 (fr) 1998-04-17 1999-03-22 Machine-outil a plusieurs etages travaillant le metal par formage, munie de blocs combines d'outils

Country Status (12)

Country Link
US (1) US6658913B1 (fr)
EP (1) EP1071528B1 (fr)
JP (1) JP3563035B2 (fr)
KR (1) KR100400703B1 (fr)
CN (1) CN1094078C (fr)
AU (1) AU2709699A (fr)
CZ (1) CZ295233B6 (fr)
DE (1) DE59905653D1 (fr)
EA (1) EA002249B1 (fr)
ES (1) ES2196774T3 (fr)
TW (1) TW420627B (fr)
WO (1) WO1999054071A1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10032089A1 (de) * 2000-03-30 2001-10-04 Schumag Ag Werkzeughalter sowie Anordnung aus Werkzeughalter und Werkzeug
ATE286441T1 (de) * 2000-03-30 2005-01-15 Schumag Ag Schlitten einer presse mit einem werkzeughalter sowie anordnung aus schlitten und werkzeug
US7310983B2 (en) 2004-11-18 2007-12-25 Belvac Production Machinery, Inc. Quick change over apparatus for machine line
CN100446892C (zh) * 2005-04-13 2008-12-31 运通工业股份有限公司 部品成型机挟台传动杆的结合定位机构
US8024952B2 (en) * 2008-03-26 2011-09-27 National Machinery Llc Slide with segmented tooling held closed by stationary remote spring
US8601843B2 (en) 2008-04-24 2013-12-10 Crown Packaging Technology, Inc. High speed necking configuration
US7770425B2 (en) * 2008-04-24 2010-08-10 Crown, Packaging Technology, Inc. Container manufacturing process having front-end winder assembly
US7997111B2 (en) 2008-04-24 2011-08-16 Crown, Packaging Technology, Inc. Apparatus for rotating a container body
US7784319B2 (en) * 2008-04-24 2010-08-31 Crown, Packaging Technology, Inc Systems and methods for monitoring and controlling a can necking process
US8464567B2 (en) 2008-04-24 2013-06-18 Crown Packaging Technology, Inc. Distributed drives for a multi-stage can necking machine
US8245551B2 (en) 2008-04-24 2012-08-21 Crown Packaging Technology, Inc. Adjustable transfer assembly for container manufacturing process
DE102009005706A1 (de) 2009-01-22 2010-07-29 Winker Massivumformung Gmbh & Co. Kg Verfahren zum Herstellen von Rohlingen aus einem draht- oder stangenförmigen Halbzeug sowie Umformmaschine
DE102012010263A1 (de) * 2012-05-25 2013-11-28 Bleistahl-Produktions Gmbh & Co Kg Rundtaktpressmaschine
CN105059923B (zh) * 2015-07-20 2017-05-24 苏州宏瑞达新能源装备有限公司 一种同步驱动自动上玻璃机

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US3559446A (en) 1968-03-29 1971-02-02 Nat Machinery Co The Forging machine
DE2135405B2 (de) * 1971-07-15 1974-08-08 Gebr. Hilgeland, 5600 Wuppertal Auswerferanordnung an einer Doppeldruckpresse, deren Stempelträger um eine am Pressenschlitten vorgesehene Achse schwenkbar und gegebenenfalls in den Endstellungen arretierbar ist
US4898017A (en) * 1988-08-09 1990-02-06 The National Machinery Company Quick-change tooling for progressive formers and the like
US5005397A (en) * 1988-08-09 1991-04-09 The National Machinery Company Method for providing progressive formers with quick-change tooling
US4966028A (en) * 1988-11-14 1990-10-30 Kabushiki Kaisha Sakamurakikai Seisakusho Multi-stage cold forging machine
US5829302A (en) 1996-05-31 1998-11-03 The National Machinery Company Cassette tooling

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Also Published As

Publication number Publication date
EP1071528B1 (fr) 2003-05-21
CZ295233B6 (cs) 2005-06-15
US6658913B1 (en) 2003-12-09
JP3563035B2 (ja) 2004-09-08
ES2196774T3 (es) 2003-12-16
CZ20003821A3 (cs) 2001-07-11
DE59905653D1 (de) 2003-06-26
TW420627B (en) 2001-02-01
AU2709699A (en) 1999-11-08
JP2002512127A (ja) 2002-04-23
EA200001079A1 (ru) 2001-04-23
KR20010041070A (ko) 2001-05-15
EA002249B1 (ru) 2002-02-28
WO1999054071A1 (fr) 1999-10-28
KR100400703B1 (ko) 2003-10-08
CN1094078C (zh) 2002-11-13
CN1291121A (zh) 2001-04-11

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