EP0473951A2 - 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

Info

Publication number
EP0473951A2
EP0473951A2 EP91113167A EP91113167A EP0473951A2 EP 0473951 A2 EP0473951 A2 EP 0473951A2 EP 91113167 A EP91113167 A EP 91113167A EP 91113167 A EP91113167 A EP 91113167A EP 0473951 A2 EP0473951 A2 EP 0473951A2
Authority
EP
European Patent Office
Prior art keywords
tool
tie rod
tool carrier
pressing tool
fastening device
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
EP91113167A
Other languages
German (de)
English (en)
Other versions
EP0473951A3 (en
EP0473951B1 (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 pressing tool and tool carrier of an upsetting 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 receiving the pressing tools that face one another.
  • a press of the type mentioned 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 is driven, for example, via a shaft with a worm thread.
  • a forked connecting rod which is driven, for example, via a shaft with a worm thread.
  • the worms are in engagement with worm wheels, which are wedged onto eccentric shafts. As a result of the rotation of the eccentric shafts, the pressure tool is pushed 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 illustration, a clamping strip for mechanical clamping of the machine parts can also be inserted.
  • a connection of printing tool and tool holder allows a quick and, above all, automated change of printing tools. It should also be borne in mind that the tool of upsetting presses of this size can be several tons and that - even using a crane - the tool change, which in principle has to be carried out manually, can become a considerable danger for the maintenance personnel, since manual operation in the very cramped interior of the Upset press must take place.
  • the tool is also fastened to the tool carrier, the so-called bear and counterbear, with the aid of a dovetail-shaped groove. Accordingly, it is also difficult to replace a worn tool with a new tool.
  • 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 with the aid of automatable connecting elements and can be clamped to the tool carrier and that manual handling of the heavy tools by the Operating or maintenance personnel in the danger area of the press can be avoided.
  • the fastening device of the pressing tool and tool carrier of an upsetting press of the type mentioned is characterized by at least one tension rod which is rotatably held in or on the tool carrier and has a hammer-shaped tie rod head which is in a recess which is essentially matched to the tie rod head and supports it and is open on one side Press tool engages.
  • This structural design enables the pressing tool and tool carrier to be loosened and connected in the upsetting press in a simple manner. In contrast to the conventional changing of the tools, it is no longer necessary to have to move the entire unit, consisting of the tool and the tool carrier and, if appropriate, from the drive system out of the press.
  • the recesses are arranged with their supporting surfaces in a supporting flange of the pressing tool which runs on both longitudinal sides of the pressing tool facing the tool carrier.
  • 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.
  • spray nozzles pressurized by a cleaning medium are arranged in the region of the attachment of the tie rod head to the support flange of the pressing tool. With the help of these spray nozzles, the scale or other dirt particles deposited on the tie rod head and in the associated recess are removed, so that on the one hand the tie rod head can be easily loosened and rotated in the recess.
  • tie rods For proper guidance of the tie rods, it is proposed in an embodiment of the invention that they 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 exchanged fully automatically on the tool holder without the operating personnel having to work manually in the changing process on site.
  • an actuating piston connected to and surrounding the tie rod is arranged in the tensioning cylinder, one piston surface of which is part of a cylinder chamber that can be acted upon by a hydraulic medium, and a spring system, preferably a disk spring assembly, bears against the other piston surface.
  • the operating personnel can act on the hydraulic chamber of the tensioning cylinder with a high pressure from a control room located outside the compression press by means of an active control signal that the actuating piston is adjusted against the force of the spring packs 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 upsetting 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 ', each of which runs parallel to a long side of the pressing tool 1.
  • 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 protruding length of the molded hammer.
  • the support flanges 4, 4 'with the recesses 6 are located on the long 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 sleeves, 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 actuating 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 upsetting press from the setting press 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 installation 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 strained.
  • Both the actuating piston 11 of the clamping 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 in the beginning is consequently achieved in a convincing manner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Metal Rolling (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
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 true EP0473951A2 (fr) 1992-03-11
EP0473951A3 EP0473951A3 (en) 1992-12-02
EP0473951B1 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

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3111895A (en) * 1959-07-08 1963-11-26 Bliss E W Co Die clamp
US3638473A (en) * 1969-11-19 1972-02-01 Wyman Gordon Co Block and die shoe clamping assembly
DE2360750A1 (de) * 1973-12-06 1975-06-12 Demag Drucklufttechnik Gmbh Spannvorrichtung fuer pressen
FR2271043A1 (fr) * 1974-05-16 1975-12-12 Mueller Fritz
EP0043982A1 (fr) * 1980-07-11 1982-01-20 SMS HASENCLEVER Maschinenfabrik GmbH Dispositif combiné hydraulique pour le serrage et la rotation de l'étampe supérieure dans des presses à forger
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
EP0207930A1 (fr) * 1985-07-01 1987-01-07 Simmering-Graz-Pauker Aktiengesellschaft Dispositif de serrage pour outillage de presses

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1627421A1 (de) * 1967-08-01 1970-11-05 Otto Dr Ing Georg Sowohl als Hammer als auch als Presse betreibbare Umformmaschine
FR2316014A1 (fr) * 1974-04-11 1977-01-28 Tadeusz Sendzimir Procede et appareil pour modifier la section transversale d'une brame
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
DE3376530D1 (en) * 1982-12-01 1988-06-16 Hitachi Ltd Press apparatus for reducing slab width
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
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

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3111895A (en) * 1959-07-08 1963-11-26 Bliss E W Co Die clamp
US3638473A (en) * 1969-11-19 1972-02-01 Wyman Gordon Co Block and die shoe clamping assembly
DE2360750A1 (de) * 1973-12-06 1975-06-12 Demag Drucklufttechnik Gmbh Spannvorrichtung fuer pressen
FR2271043A1 (fr) * 1974-05-16 1975-12-12 Mueller Fritz
EP0043982A1 (fr) * 1980-07-11 1982-01-20 SMS HASENCLEVER Maschinenfabrik GmbH Dispositif combiné hydraulique pour le serrage et la rotation de l'étampe supérieure dans des presses à forger
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
EP0207930A1 (fr) * 1985-07-01 1987-01-07 Simmering-Graz-Pauker Aktiengesellschaft Dispositif de serrage pour outillage de presses

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 7, no. 128 (M-220)(1273) 3. Juni 1983 & JP-A-58 047 525 ( NISSAN JIDOSHA K.K. ) *
PATENT ABSTRACTS OF JAPAN vol. 8, no. 186 (M-320)(1623) 25. August 1984 & JP-A-59 076 629 ( ESU AARU ENJINIYARINGU K.K. ) *

Also Published As

Publication number Publication date
KR920004137A (ko) 1992-03-27
RU2018403C1 (ru) 1994-08-30
DE4026827C2 (de) 1998-11-05
ATE121015T1 (de) 1995-04-15
CN1033562C (zh) 1996-12-18
EP0473951A3 (en) 1992-12-02
EP0473951B1 (fr) 1995-04-12
CN1063630A (zh) 1992-08-19
DE4026827A1 (de) 1992-02-27
DE59105159D1 (de) 1995-05-18
US5195355A (en) 1993-03-23

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