EP0473951B1 - Dispositif pour monter l'outil sur le porte-outil d'une presse à refouler - Google Patents

Dispositif pour monter l'outil sur le porte-outil d'une presse à refouler Download PDF

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Publication number
EP0473951B1
EP0473951B1 EP91113167A EP91113167A EP0473951B1 EP 0473951 B1 EP0473951 B1 EP 0473951B1 EP 91113167 A EP91113167 A EP 91113167A EP 91113167 A EP91113167 A EP 91113167A EP 0473951 B1 EP0473951 B1 EP 0473951B1
Authority
EP
European Patent Office
Prior art keywords
tie rod
tool
toolholder
press
recess
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
EP91113167A
Other languages
German (de)
English (en)
Other versions
EP0473951A3 (en
EP0473951A2 (fr
Inventor
Gerhard Heitze
Horst Grafe
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.)
SMS Siemag AG
Original Assignee
SMS Schloemann Siemag AG
Schloemann Siemag 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 SMS Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Publication of EP0473951A2 publication Critical patent/EP0473951A2/fr
Publication of EP0473951A3 publication Critical patent/EP0473951A3/de
Application granted granted Critical
Publication of EP0473951B1 publication Critical patent/EP0473951B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
    • B30B15/026—Mounting of dies, platens or press rams

Definitions

  • the invention relates to a device for the detachable fastening of the tool and tool carrier of a die press for reducing the width of rolled material, in particular the slab width in hot wide strip roughing mills with tool carriers arranged on both sides of the slab edge and holding the mutually facing pressing tools with at least one prestressable tie rod held in or on the tool carrier with a hammer-shaped tie rod head which engages in a recess in the press tool which is essentially matched to the tie rod head and supports it.
  • a press for reducing the width of the slab produced by a slab caster is known.
  • the printing tool for slab reduction is located in a tool holder.
  • Printing tool and tool holder are forcibly moved by a forked connecting rod, which z. B. is driven via a shaft with a screw thread.
  • Such an arrangement is available for each tool holder.
  • the worms are in engagement with worm wheels, which are wedged onto eccentric shafts.
  • the pressure tool is advanced against the slab edges.
  • the pressure tool and the tool holder are connected to one another by means of a dovetail-shaped groove, in which, according to another representation, a clamping strip for mechanical clamping of the machine parts can also be inserted.
  • a clamping device for presses for quickly clamping a tool plate on the press ram by means of clamping bolts is known, the head of which is designed as a cross bar and the clamping force is brought about by a torque.
  • the tensioning device has at least one tensionable tie rod held rotatably in or on the tool carrier with a hammer-shaped tie rod head.
  • the tie rod head engages in a recess in the press tool which is essentially adapted to this and supports the tie rod and is open on one side. This should shorten the downtimes of the presses and at the same time avoid malfunctions that could be caused by insufficient manual clamping of the clamping screws. Presses of this type are generally not used for the forming of hot slabs, in which there is an increased risk that rolled mill scale can stick the clamping devices with their tie rods.
  • the object of the present invention is to improve the connection between the pressing tool and the tool carrier of an upsetting press of the type mentioned at the outset in such a way that the tool can be detached from the tool carrier more easily and clamped more easily with the tool carrier, and that manual handling of the heavy Tools can be avoided by the operating or maintenance personnel in the hazardous area of the press.
  • spray nozzles pressurized with a cleaning medium are arranged in the region of the attachment of the tie rod head with a support flange of the pressing tool with a cleaning medium in view of the easier replacement of the tool.
  • the support flange of the pressing tool which runs on both longitudinal sides of the pressing tool facing the tool carrier, the recesses are arranged with their supporting surfaces. This increases the contact surface of the tool on the tool carrier and several tie rods can clamp the tool on both long sides so that a tilt-free connection to the tool carrier is established.
  • At least one additional adjustment and setting recess is arranged in at least one support flange of the pressing tool, into which a setting pin connected to the tool carrier engages. This measure improves the replacement of the tool because the tie rod head can be fitted very precisely into the associated recess and can be brought into contact with the support surface.
  • the tie rods are mounted in guide bores in the tool carrier. This arrangement also protects the tie rods from the high radiant heat emanating from the slab. Further advantages can be achieved with the invention, namely by means of a tensioning cylinder supported on the tool carrier, connected to the tie rod and mechanically prestressing and hydraulically relieving tensioning cylinder, and by a rotating device acting on the tie rod.
  • the technical interplay of the clamping cylinder, separate twisting device and tie rod connection enables the tool to be released, clamped and changed fully automatically on the tool holder without the operating personnel having to work manually during the changing process on site.
  • an adjusting piston connected to and surrounded by the tie rod is arranged in the tension cylinder, one piston surface of which is part of a cylinder chamber that can be acted upon by a hydraulic medium, and on the other piston surface there is a prestressable spring system, preferably a disk spring assembly.
  • the operating personnel can act on the hydraulic chamber of the tensioning cylinder with such a high pressure from a control room located outside the upsetting press that the control piston counteracts it by means of an active control signal the force of the spring assemblies is adjusted by the amount which is sufficient to loosen the hammer head of the tie rod from the support surface on the tool and to twist it so that the position of the hammer head and the open recess match.
  • the targeted turning of the hammer head takes place according to a further advantageous embodiment of the invention in that the rotating device has a rocker arm attached to the tie rod, which is connected to a displacement-controlled adjusting device, preferably a piston-cylinder unit.
  • a displacement-controlled adjusting device preferably a piston-cylinder unit.
  • Fig. 1 shows the pressing tool 1, which has a releasable attachment to the tool carrier 2.
  • the pressing surface 3 of the tool 1 faces the slab edge.
  • Pressing tool and tool carrier belong to the upset press of the type described in the introduction for reducing the slab width, in particular in hot wide strip roughing lines, with pressing tool 1 and tool carrier 2 being arranged on both sides of the slab.
  • the pressing tool 1 is loosened, fastened and braced with the tool carrier 2 with the aid of a plurality of tie rods 3 which are located on the support flange 4, 4 ', which each run parallel to a long side of the pressing tool 1, support.
  • the tie rod head 5 of each tie rod is designed like a hammer and engages in a recess in the press tool 1 which is adapted to and supports the tie rod head and which recess is open to one side.
  • the width of the recess is slightly larger than the diameter of the tie rod, but significantly smaller than the projecting length of the molded hammer.
  • In the area of the recess 6 there is a support surface 7 for the correspondingly flat hammer head.
  • the support flanges 4, 4 'with the recesses 6 are located on the longitudinal side of the pressing tool facing the tool carrier.
  • the tie rods 3 are rotatably held in guide bores 8 in the tool carrier and are stored there in spacer bushes, not shown.
  • a clamping cylinder 9 is arranged, which is connected to the tie rod and which is supported on the tool carrier, so that the tie rod is clamped on both sides, namely on the pressing tool and on the tool carrier.
  • the tie rod can be hydraulically relieved and mechanically pretensioned.
  • the tie rod is passed through the tension cylinder and has a twisting device 10 acting on the tie rod.
  • the tensioning cylinder 9 there is an adjusting piston 11 connected to and surrounding the tie rod 3, one piston surface 12 of which is part of a cylinder chamber 13 to which a hydraulic medium can be applied and on the other piston surface 14 a prestressed disk spring assembly 15 acts.
  • the rotating device 10 consists of a rocker arm 16 attached to the tie rod, which is connected to a displacement-controlled piston-cylinder unit 17, which is of a conventional type and therefore is only shown schematically here.
  • a displacement-controlled piston-cylinder unit 17 which is of a conventional type and therefore is only shown schematically here.
  • spray nozzles which are pressurized with a cleaning medium and whose nozzle axes are directed towards the connection of the tie rod head 5 and pressing tool 1.
  • Fig. 2 shows the view of the pressing tool 1 with the recesses 6 in the support flanges 7 for the tie rod head. Furthermore, Fig. 2 shows two in the lower support flange 4 'arranged adjusting and setting recesses 19 so that the tool 1 can be placed on two setting bolts 20 if it is to be detached from the tool with the aid of the tie rods 3 or braced with it. On each side of the pressing tool, a suspension pin 21 can be seen, on which a changing device engages in order to lift the tool upwards out of the compression press from the setting pin or to insert a new pressing tool.
  • a cleaning liquid - mostly water - is first directed at the connection of the tie rod head 5, recess 6 and support surface 7 with the help of the spray nozzles 18 under high pressure in order to scale from this connection point and remove other sticky contaminants. Subsequently, the cylinder chamber 13 loaded with a hydraulic medium is placed under higher pressure, so that the actuating piston 11 moves downward against the force of the plate spring assembly 15 and the tie rod head 5 is consequently slightly lifted off the support surface 7.
  • the assembly of a new press tool is carried out in the reverse order of the measures described above.
  • the new tool is placed on the setting bolt 19 by the changing device and adjusted with regard to the position of the tie rod heads.
  • the tie rod heads are rotated by the rotating device 10 to such an extent that they are located on the support surfaces 7 of the recesses 6.
  • the hydraulic medium in the cylinder chamber 13 of the clamping cylinder 9 is relieved of pressure, whereby the actuating piston 11 is moved by the plate spring assembly 15 and thus the tie rod such that the flat surface of the tie rod head 5 rests on the supporting surface 7 of the recess 6 and against the spring force of the plate assembly this surface is stretched.
  • Both the actuating piston 11 of the tensioning cylinder 9 and the piston-cylinder unit 17 are controlled in their movement by a hydraulic medium; this therefore offers the possibility of fully automated loosening and tensioning of the pressing tool 1 from and with the tool carrier 2 and thus the possibility of automated tool changing from an operator control room with the aid of a suitably trained tool changing device.
  • the object of the invention set out at the outset is consequently achieved in a convincing manner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Metal Rolling (AREA)

Claims (7)

  1. Appareil pour fixer de façon détachable un outil de presse (1) et un porte-outils (2) d'une presse refouleuse pour la réduction en largeur d'un produit laminé, en particulier la largeur des brames dans un train ébaucheur à chaud pour bandes larges, comprenant des porte-outils agencés des deux côtés de la bordure de la brame, qui reçoivent les outils de presse (1) dirigés l'un vers l'autre, comprenant au moins un tirant (3) retenu avec faculté de rotation dans ou sur le porte-outils (2), et capable d'être précontraint, ledit tirant (3) comportant une tête (5) réalisée en forme de marteau, qui s'engage dans un évidement (6) ouvert d'un côté dans l'outil de presse (1), ledit évidement étant sensiblement ajusté à la tête du tirant et supportant celle-ci,
    caractérisé en ce que dans la région de la fixation de la tête (5) du tirant avec une bride de support (4, 4') de l'outil de presse (1) sont agencées des buses de pulvérisation (18) alimentées sous pression avec un fluide de nettoyage.
  2. Appareil de fixation selon la revendication 1, caractérisé en ce que les évidements (6) avec leurs surfaces d'appui (7) sont agencés dans la bride de support (4, 4') de l'outil de presse (1) qui s'étend sur les deux côtés longitudinaux de l'outil de presse (1) orientés vers le porte-outils (2).
  3. Appareil de fixation selon l'une ou l'autre des revendications 1 et 2, caractérisé en ce qu'au moins dans une bride de support (4') de l'outil de presse (1) est agencé au moins un évidement additionnel d'ajustement et de dépose (19), dans lequel s'engage un boulon de dépose (20) relié au porte-outils (2).
  4. Appareil de fixation selon l'une au moins des revendications 1 à 3, caractérisé en ce que les tirants (3) sont montés dans le porte-outils (2) dans des perçages de guidage.
  5. Appareil de fixation selon l'une au moins des revendications 1 à 4 caractérisé en ce qu'il comporte un cylindre de serrage (9) qui s'appuie sur le porte-outils (2), qui est relié au tirant (3), et qui sollicite celui-ci mécaniquement et le décharge hydrauliquement, et un dispositif de rotation (10) qui attaque le tirant (3).
  6. Appareil de fixation selon l'une au moins des revendications 1 à 5 caractérisé en ce qu'un piston de positionnement (11), qui est relié au tirant (3) et qui entoure celui-ci, est agencé dans le cylindre de serrage (9), l'une des surfaces (12) du piston formant partie d'une chambre cylindrique (13) susceptible d'être alimentée avec un fluide hydraulique, et en ce qu'un système à ressort susceptible d'être précontraint, de préférence un empilement de rondelles Belleville (15), est appuyé sur l'autre surface (14) du piston.
  7. Appareil de fixation selon l'une au moins des revendications 1 à 6, caractérisé en ce que le dispositif de rotation (10) comporte un levier basculant (16) fixé sur le tirant (3), qui est en liaison avec un dispositif de déplacement commandé à distance, de préférence avec une unité à piston-et-cylindre (17).
EP91113167A 1990-08-24 1991-08-06 Dispositif pour monter l'outil sur le porte-outil d'une presse à refouler Expired - Lifetime EP0473951B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4026827 1990-08-24
DE4026827A DE4026827C2 (de) 1990-08-24 1990-08-24 Befestigungsvorrichtung zur lösbaren Verbindung von Werkzeug und Werkzeugträger einer Stauchpresse

Publications (3)

Publication Number Publication Date
EP0473951A2 EP0473951A2 (fr) 1992-03-11
EP0473951A3 EP0473951A3 (en) 1992-12-02
EP0473951B1 true EP0473951B1 (fr) 1995-04-12

Family

ID=6412861

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91113167A Expired - Lifetime EP0473951B1 (fr) 1990-08-24 1991-08-06 Dispositif pour monter l'outil sur le porte-outil d'une presse à refouler

Country Status (7)

Country Link
US (1) US5195355A (fr)
EP (1) EP0473951B1 (fr)
KR (1) KR920004137A (fr)
CN (1) CN1033562C (fr)
AT (1) ATE121015T1 (fr)
DE (2) DE4026827C2 (fr)
RU (1) RU2018403C1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4138441C2 (de) * 1991-11-22 2003-06-12 Sms Demag Ag Preßwerkzeug für eine Stauchpresse zur Reduzierung der Brammenbreite in Warmbreitband-Vorstraßen
US5285722A (en) * 1992-11-16 1994-02-15 The Minster Machine Company Press shutheight adjustment using hydraulic tie rod assemblies
JP2730845B2 (ja) * 1993-06-07 1998-03-25 川崎製鉄株式会社 サイジングプレス装置及びその金型交換方法
DE10241119C5 (de) * 2001-11-03 2010-10-14 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Presse, insbesondere Ein- oder Mehretagenpresse, kontinuierliche Presse, o. dgl.
CN104493046B (zh) * 2014-11-07 2016-08-31 二重集团（德阳）重型装备股份有限公司 热模锻压力机上模座的夹紧装置
CN114643283B (zh) * 2022-03-25 2023-09-05 马鞍山钢铁股份有限公司 一种定宽压力机锤头冷却结构

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1301255B (de) * 1959-07-08 1969-08-14 Bliss E W Co Haltevorrichtung zum automatischen Befestigen eines Werkzeuges am Schlitten einer Presse oder Stanze
DE1627421A1 (de) * 1967-08-01 1970-11-05 Otto Dr Ing Georg Sowohl als Hammer als auch als Presse betreibbare Umformmaschine
US3638473A (en) * 1969-11-19 1972-02-01 Wyman Gordon Co Block and die shoe clamping assembly
DE2360750C3 (de) * 1973-12-06 1980-06-04 Demag Drucklufttechnik Verwaltungsgesellschaft Mbh, 6000 Frankfurt Schnellspannvorrichtung zum selbsttätigen Festspannen von Werkzeugplatten in Pressen
FR2316014A1 (fr) * 1974-04-11 1977-01-28 Tadeusz Sendzimir Procede et appareil pour modifier la section transversale d'une brame
US3965813A (en) * 1974-05-16 1976-06-29 Fritz Muller Arrangement for the attachment of a body to a support
JPS519648A (fr) * 1974-07-15 1976-01-26 Nippon Telegraph & Telephone
JPS598458B2 (ja) * 1979-05-04 1984-02-24 三菱自動車工業株式会社 ダイセツタ装置
DE3026295A1 (de) * 1980-07-11 1982-02-11 Schloemann-Siemag AG, 4000 Düsseldorf Hydraulische obersattel-klemm- und -drehvorrichtung an schmiedepressen
JPS5847525A (ja) * 1981-09-14 1983-03-19 Nissan Motor Co Ltd クランプ装置
JPS5976629A (ja) * 1982-10-25 1984-05-01 S R Eng Kk クランプ装置
EP0112516B1 (fr) * 1982-12-01 1988-05-11 Hitachi, Ltd. Dispositif pour réduire la largeur de brame
JPS6174710A (ja) * 1984-09-19 1986-04-17 Hitachi Ltd スラブ縮幅方法及び装置
JPS61135435A (ja) * 1984-12-05 1986-06-23 Aida Eng Ltd ダイクランパ
AT382095B (de) * 1985-07-01 1987-01-12 Simmering Graz Pauker Ag Spanneinrichtung fuer pressen-werkzeuge
DE3618286C1 (de) * 1986-05-30 1987-07-09 Hilma Gmbh Maschf Verstellantrieb fuer Einschubspanner von Pressen
JPH0729150B2 (ja) * 1989-01-09 1995-04-05 日産自動車株式会社 下型締付け装置

Also Published As

Publication number Publication date
DE4026827C2 (de) 1998-11-05
DE59105159D1 (de) 1995-05-18
KR920004137A (ko) 1992-03-27
CN1033562C (zh) 1996-12-18
US5195355A (en) 1993-03-23
RU2018403C1 (ru) 1994-08-30
DE4026827A1 (de) 1992-02-27
EP0473951A3 (en) 1992-12-02
CN1063630A (zh) 1992-08-19
ATE121015T1 (de) 1995-04-15
EP0473951A2 (fr) 1992-03-11

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