EP0379937B1 - Liegende Strangpresse - Google Patents

Liegende Strangpresse Download PDF

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Publication number
EP0379937B1
EP0379937B1 EP90100837A EP90100837A EP0379937B1 EP 0379937 B1 EP0379937 B1 EP 0379937B1 EP 90100837 A EP90100837 A EP 90100837A EP 90100837 A EP90100837 A EP 90100837A EP 0379937 B1 EP0379937 B1 EP 0379937B1
Authority
EP
European Patent Office
Prior art keywords
measuring sensors
guide shoes
press
receiver holder
moving crosshead
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
EP90100837A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0379937A2 (de
EP0379937A3 (de
Inventor
Groos Horst
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 Hasenclever GmbH
SMS Hasenclever Maschinenfabrik GmbH
Original Assignee
SMS Hasenclever GmbH
SMS Hasenclever Maschinenfabrik GmbH
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 Hasenclever GmbH, SMS Hasenclever Maschinenfabrik GmbH filed Critical SMS Hasenclever GmbH
Publication of EP0379937A2 publication Critical patent/EP0379937A2/de
Publication of EP0379937A3 publication Critical patent/EP0379937A3/de
Application granted granted Critical
Publication of EP0379937B1 publication Critical patent/EP0379937B1/de
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
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K31/00—Control devices specially adapted for positioning tool carriers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/21—Presses specially adapted for extruding metal
    • B21C23/212—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/21—Presses specially adapted for extruding metal
    • B21C23/212—Details
    • B21C23/215—Devices for positioning or centering press components, e.g. die or container
    • 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
    • B21J13/04—Frames; Guides

Definitions

  • the invention relates to horizontal extrusion presses with axially displaceable pick-up holder and runner in the press frame between the lower, weight-absorbing and upper, holding-down guides.
  • a first alignment of the transducer to the pressing tools with the aid of suitable alignment aids is still common today.
  • the pick-up holder and the spar of the press are equipped with adjustable guide shoes. If the guides - as usual today - as x-guides, i.e. with guide surfaces aligned with the main axis of the press, thermal expansion in the guides can be compensated.
  • the arrangement of at least three sensors is known (DE-A-23 04 326), which are arranged on the end face of the transducer and distributed around its axis and the position of the end face relative to one perpendicular to Show axis of the reference plane.
  • angular deviations can be determined, but not transverse deviations between the transducer and the pressing tools, as can be caused, for example, by temperature differences on the receptacle holder.
  • the requirement of being able to detect and correct transverse deviations between the transducer and the pressing tools was the aim of the solution according to DE-A-28 50 576 and DE-A-30 20 156, according to which a coherent beam of electromagnetic vibrations between one Transmitter and a receiver offset parallel to the press axis and by a second and possibly third receiver with a central one Beam passage openings extend, two of the receivers being connected at a distance to the transducer or transducer holder and the transmitter, and, if appropriate, the further receiver being connected to the components of the overall system which are to be brought into alignment and to be held.
  • the pick-up holder of this press and also the running bar can be provided with adjustable guide shoes for the aligned alignment of the pick-up to the press ram and to the other press tools.
  • the object to be achieved by the invention is accordingly to detect and, depending on the elements, correct angular and transverse deviations from the aligned position of the transducer with respect to the pressing tools with the rough conditions (high mechanical and thermal loads and heavy contamination) of the extrusion operation have grown.
  • the holding-down guide shoes of which are also flexibly connected to the transducer holder and the running beam by means of pressure elements and are held under positive pressure in a form-fitting manner on the upper guides
  • the object of the invention is achieved using sensors known per se in that According to the invention, the sensors designed as displacement sensors are arranged on the upper, holding-down guide shoes to the transducer holder and to the runner between the guide shoes and the transducer holder or runner carrying them, the distance between the guide shoes and the transducer holder or runner acting and indicating in the same direction as the pressure elements.
  • the invention can be implemented with known, tried and tested elements, the sensors being able to be accommodated at a protected location without to occupy a special room that is therefore otherwise available.
  • the sensors can be designed, for example, as inductive displacement transducers and arranged parallel to pressure elements which push the guide shoes off the arms of the pickup holder and the arms of the running bar for contact with the upper guides.
  • Another possibility is to design the pressure elements acting on the guide shoes as piston-cylinder units, in which case the pistons form the travel sensors or are connected directly to them.
  • the actuators of the guide shoes with a motor drive, for the control of which signals are connected to a control computer evaluating the measured values of the sensors.
  • the lying extrusion press shown as an exemplary embodiment consists of a press frame 1 on which a cylinder spar 2 and a counter spar 3 rest, which are connected to one another by prestressed anchors 4.
  • the anchors 4 are made of tension members, consisting of a plurality of sheet metal plates 5, which bear on the outside of the cylinder spar 2 and the counter beam 3 with hammer heads 6, and of the sheet metal plates 5, formed on the inside of the cylinder beam 2 and on the counter beam 3, that is to say rectangular pressure pieces 7 located between them .
  • Wedge strips 8 and slideways 9, which form lower and upper guides 10 and 11, which form planes aligned with the press axis 12, are placed on the pressure pieces 7.
  • a pick-up holder 13 and a spar 14 are axially displaceably a pick-up holder 13 and a spar 14, piston and cylinder units 15 being provided for moving the pick-up holder 13 above and below and connected to the pick-up holder 13 by means of piston rods 16, while the spool 14 of a plunger arranged in cylinder 17 in the pressing direction and by return pistons arranged in cylinders 18 arranged on both sides of cylinder 17, which are connected with their piston rods 19 to the barrel member 14.
  • the pick-up holder 13 carries a pick-up 20 and the running bar 14 a press ram 21.
  • a die is supported on the counter bar 3 by a die holder 22.
  • the embodiment is a direct extrusion press. It goes without saying that the invention also relates to indirect extrusion presses in which the die is supported by a die stamp. Likewise, the invention relates to direct or indirect hollow extrusion presses in which a mandrel forming the extrusion cavity is arranged in the press die 21 or in the take-up plug which takes the place of a press die and is displaceable in a bore of the press die 21 or the closure piece.
  • the pick-up holder 13 is provided with arms 23 and the walking bar 14 with arms 24, which carry lower guide shoes 25 and upper guide shoes 26 with which they rest on the lower guides 10 or the upper guides 11.
  • the lower guide shoes 25 are connected to the arms 23 of the transducer holder 13 and the arms 24 of the spar 14 by actuators.
  • threaded spindles 27 are provided as actuators, which are rotatable in threaded bores 28 located perpendicular to the guides 10 in the end pieces 23a to the lower arms 23 and 24a to the lower arms 24.
  • the threaded spindles 27 are provided with end pins 27a, with which they are rotatably seated in bores 29 of the guide shoes 25.
  • Anchor bolts 30 are screwed into the guide shoes 25 and penetrate the hollow drilled threaded spindles 27, nuts 31 at the ends of the anchor bolts 30 securing the cohesion of the guide shoes 25 with the threaded spindles 27. With 32 rotation locks are designated, which an unwanted rotation of the threaded spindles 27 after Prevent setting.
  • plate spring assemblies 33 are arranged between the guide shoes 26 and the threaded spindles 34.
  • these threaded spindles 34 are also rotatable in threaded bores 35 in the end pieces 23a of the upper arms 23 and 24a of the upper arms 24.
  • the threaded spindles 34 are set in such a way that the plate spring assemblies 33 have a sufficient contact pressure of the guide shoes 26 on the upper guides 11 maintained.
  • Nuts 37 placed on the anchor bolts 36 to the guide shoes 26 leave sufficient play so that the guide shoes 26 can always hold against the guides 11.
  • Tilting, asymmetrical thermal expansion and the like disturbances lead to a change in the distance between the end pieces 23a and 24a of the upper arms 23 and 24 of the pick-up holder 13 and the runner 14 to the upper guides 11 and under the force of the plate spring assemblies 33, the guide shoes settle 26 correspondingly from the end pieces 23a of the upper arms 23 and the end pieces 24a of the upper arms 24.
  • the end pieces 23a and 24a of the upper arms 23 and 24 are therefore provided with sensors 38.
  • These sensors 38 are inserted in bores 39 which are arranged axially parallel to the threaded bores 35 for receiving the threaded spindles 34. Nuts 38a fix the sensors 38 in the holes 39.
  • In the sensors 38 are axially movable probes 40 which follow the guide shoes 26 under spring pressure and inductively detect their changes in position. Lines 41 connect the sensors 38 to their associated indicators on the press control station.
  • sensors 42 can be provided with feelers 43 which 44 the distance of the pressure pin Measure and display end pieces 23a and 24a and thus the position of the transducer holder 13 and the running bar 14 relative to the lower guides 10.
  • the end pieces 23a and 24a are for receiving the measuring sensors 42 with stylus pins 43 and pressure bolts 44 provided with stepped bores 45, in the sections of smaller diameter, the pressure bolts 44 are guided, while the sections of larger diameter are closed by covers 46, which support the sensors 42 and support compression springs 47, which hold the pressure bolts 44 in contact with the lower guides 10 .
  • the sensors 42 provide additional information for assessing the measurement results on the sensors 38, which is why the sensors 42 also display measured values are assigned to the press on the control station and are supplied to the control computer as inputs when controlling the actuators.
  • FIGS. 5 and 6 show the end pieces 23a of the arms 23 of the pick-up holder 13.
  • a modification of the exemplary embodiment shown is shown in dotted lines for one of the actuators in FIG.
  • the worm wheel 48 of a worm gear 49 is connected to it in a rotationally fixed but axially movable manner. The adjustment thus takes place via the motor 50 and the worm 51 in the worm gear 49 fastened to the end piece 23a.
  • the motors 50 can be controlled manually from the control station or by control signals from a control computer evaluating the measured values of the sensors.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Extrusion Of Metal (AREA)
  • Presses And Accessory Devices Thereof (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
EP90100837A 1989-01-24 1990-01-16 Liegende Strangpresse Expired - Lifetime EP0379937B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3901961 1989-01-24
DE3901961A DE3901961A1 (de) 1989-01-24 1989-01-24 Liegende strangpresse

Publications (3)

Publication Number Publication Date
EP0379937A2 EP0379937A2 (de) 1990-08-01
EP0379937A3 EP0379937A3 (de) 1991-04-03
EP0379937B1 true EP0379937B1 (de) 1994-04-13

Family

ID=6372655

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90100837A Expired - Lifetime EP0379937B1 (de) 1989-01-24 1990-01-16 Liegende Strangpresse

Country Status (3)

Country Link
EP (1) EP0379937B1 (ja)
JP (1) JPH0722774B2 (ja)
DE (2) DE3901961A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19500555C1 (de) * 1995-01-11 1996-08-22 Hasenclever Maschf Sms Liegende Metallstrangpresse

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4230620C1 (de) * 1992-09-12 1994-04-07 Hasenclever Maschf Sms Liegende Metallstrangpresse
DE19927106B4 (de) * 1999-06-14 2005-07-14 Sms Eumuco Gmbh Strang- und Rohrpresse
CN104841718A (zh) * 2014-07-11 2015-08-19 无锡市威特机械有限公司 一种挤压机用挤压筒的调节装置
DE102015116002B4 (de) 2015-09-22 2019-08-29 Sms Group Gmbh Strangpresse
IT201800020782A1 (it) * 2018-12-21 2020-06-21 Danieli Off Mecc Pressa per l’estrusione diretta di materiale metallico
CN111468550B (zh) * 2020-04-26 2022-08-26 佛山市南海区源上液压设备有限公司 铝型材挤压装置
DE102020212829A1 (de) 2020-10-12 2022-04-14 Sms Group Gmbh Verfahren zur Überwachung und Lageverstellung wenigstens eines Laufholms einer Metallpresse sowie Metallpresse
DE102020212830B4 (de) 2020-10-12 2022-08-18 Sms Group Gmbh Einstellsystem zum Einstellen des Führungsspiels einer Gleitführung für bewegbare Teile einer Presse sowie Verfahren zum Einstellen der Position wenigstens eines Gleitblocks einer Gleitführung an einer Presse
DE102023100729A1 (de) 2022-11-14 2024-05-16 Sms Group Gmbh Strangpresse

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1452264A1 (de) * 1963-01-11 1969-01-23 Fielding & Platt Ltd Hydraulische Spritzpresse
GB1287892A (ja) * 1969-01-27 1972-09-06
US3808859A (en) * 1971-08-05 1974-05-07 Cefilac Hydraulic presses
FR2170792A1 (en) * 1972-02-01 1973-09-21 Cefilac Billet receiver inclination gauge - is continuous reading
JPS596726B2 (ja) * 1977-10-26 1984-02-14 株式会社神戸製鋼所 押出プレスの精度管理方法
DE3020156A1 (de) * 1978-11-22 1981-12-03 Schloemann-Siemag AG, 4000 Düsseldorf Verfahren zur fluchtenden ausrichtung von maschinenelementen
DE2850576A1 (de) * 1978-11-22 1980-06-04 Manfred Dr Ing Markworth Verfahren zur fluchtenden ausrichtung von maschinenelementen
DE3622495A1 (de) * 1986-07-02 1988-01-21 Mannesmann Ag Saeulenfuehrung, insbesondere an schmiedepressen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19500555C1 (de) * 1995-01-11 1996-08-22 Hasenclever Maschf Sms Liegende Metallstrangpresse

Also Published As

Publication number Publication date
EP0379937A2 (de) 1990-08-01
DE3901961A1 (de) 1990-08-02
DE3901961C2 (ja) 1992-10-01
JPH02274308A (ja) 1990-11-08
EP0379937A3 (de) 1991-04-03
JPH0722774B2 (ja) 1995-03-15
DE59005299D1 (de) 1994-05-19

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