EP3380314A1 - Procédé de fonctionnement d'une presse, en particulier d'une presse à vilebrequin d'estampage - Google Patents

Procédé de fonctionnement d'une presse, en particulier d'une presse à vilebrequin d'estampage

Info

Publication number
EP3380314A1
EP3380314A1 EP16801194.8A EP16801194A EP3380314A1 EP 3380314 A1 EP3380314 A1 EP 3380314A1 EP 16801194 A EP16801194 A EP 16801194A EP 3380314 A1 EP3380314 A1 EP 3380314A1
Authority
EP
European Patent Office
Prior art keywords
press
servo drive
mass
mass system
nominal
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
EP16801194.8A
Other languages
German (de)
English (en)
Other versions
EP3380314B1 (fr
Inventor
Gerhard Voegel
Markus Bieg
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.)
L Schuler GmbH
Original Assignee
L Schuler 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 L Schuler GmbH filed Critical L Schuler GmbH
Publication of EP3380314A1 publication Critical patent/EP3380314A1/fr
Application granted granted Critical
Publication of EP3380314B1 publication Critical patent/EP3380314B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/26—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
    • B30B1/266—Drive systems for the cam, eccentric or crank axis
    • 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
    • B21J9/10—Drives for forging presses
    • B21J9/18—Drives for forging presses operated by making use of gearing mechanisms, e.g. levers, spindles, crankshafts, eccentrics, toggle-levers, rack bars
    • 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
    • B21J9/10—Drives for forging presses
    • B21J9/20—Control devices specially adapted to forging presses not restricted to one of the preceding subgroups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/14—Control arrangements for mechanically-driven presses
    • B30B15/148—Electrical control arrangements

Definitions

  • the invention relates to a method for operating a press according to claim 1 or 2 and a press according to claim 10.
  • a servo-press is known in which the selection or determination of a movement sequence is influenced by the ram kinematics, e.g. the downward speed of the plunger or the
  • Upward speed of the plunger is changed to facilitate a parts transport.
  • the inventive method for operating a press with at least 80% of its nominal pressing force, in particular a
  • Crank press for forming, in particular for forging workpieces such as in particular a forge-crank press, provides, the press with a servo drive and an arranged between the servo drive and a workpiece, in operation to equip the press moving mass system, wherein a mass of the mass system is formed at least by a plunger and at least by a drive shaft, wherein the mass system at least temporarily by the servo drive
  • Servo drive is accelerated before the forming process such that at least 100% of the nominal pressing force are available during the forming process. This makes it possible to dimension the servo drive in its maximum power compared to a maximum nominal press force of the press too small.
  • the mass system is at least temporarily driven by the servo drive, wherein the increased nominal pressing force is provided proportionately by the servo drive and the mass system and wherein the difference between 80% nominal force and at least 100% nominal force by increasing the speed of the mass of the mass system and / or compensated by an increase in the mass of the mass system.
  • the method provides, the mass system its output in the forming process energy up to a
  • crankshaft is driven and wherein from the servo drive to the crankshaft outside and during the forming process at most a torque is applied, which is at least 20% smaller than the torque at 100% nominal force.
  • the servo drive and its inverter can be significantly smaller
  • Servo drive and proportionally transform under release of kinetic energy of the mass system This makes it possible to dimension the servo drive in relation to the nominal power of the press small.
  • the servo drive provides a maximum of 80% of a nominal pressing force of the press for a forming process and that the
  • Servo drive at least 20% of the nominal press force of the press for the forming process provides. This makes it possible to make a undersizing of the servo drive with respect to its maximum power with respect to a nominal pressing force of the press. This will be the
  • Figure 1 a diagram in which for a press a
  • Plunger is in top dead center
  • Figure 2 a diagram in which for. the press again the speed of the servo drive is removed above the position of the plunger, wherein the press continues from a position in which - in continuation of the sequence shown in the first diagram - the plunger passes the top dead center at a speed of 10 U / min ,
  • FIG. 1 shows a diagram D1 in which for a press a speed DZ of a servo drive indicated in revolutions per minute is plotted over a position ST of a plunger, the press starting from a position I in which the plunger is at top dead center OT1 stands. From standstill, the speed DZ of the servo drive is continuously increased to 75 ü / min, in which case a kinetic energy contained in a mass system downstream of the servo drive builds up and increases. From one
  • Servo drive provided energy also in the
  • Mass system stored energy is needed. Thereafter, the speed DZ of the servo drive continues to decrease, because using the servo drive energy recovery occurs to ensure a sufficient time window for a parts transport and a caretaker of the die.
  • the servo drive is operated as a generator.
  • the mass system will depend on one Position III of the plunger - even before it reaches the top dead center OT2 - fed by increasing the speed of the servo drive energy again.
  • Diagram D2 how the ram passes top dead center 0T2 at the beginning of a second cycle at a speed of the servo drive of 10 rpm and thus already energetic.
  • the servo drive then rotates up again to a speed of 75 rpm, thereby further increasing the kinetic energy of the mass system.
  • the following, further sequence is similar to that described for the figure 1 further sequence.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Forging (AREA)
  • Control Of Presses (AREA)

Abstract

L'invention concerne un procédé de fonctionnement d'une presse à au moins 80 % de sa force de pressage nominale, en particulier d'une presse à vilebrequin pour le formage, en particulier pour l'estampage, de pièces comme en particulier une presse à vilebrequin d'estampage, la presse comportant une servocommande et un système de masse disposé entre la servocommande et une pièce et se déplaçant lors du fonctionnement de la presse, une masse du système de masse étant formée au moins par un poussoir et au moins par un arbre d'entraînement, le système de masse étant entraîné au moins temporairement par la servocommande, au maximum 80 % de la force de pressage nominale étant mis à disposition par la servocommande pour une opération de formage, et la masse du système de masse étant accélérée au moyen de la servocommande avant l'opération de formage de telle sorte qu'au moins 80 % de la force de pressage nominale soient disponibles lors de l'opération de formage.
EP16801194.8A 2015-11-26 2016-11-24 Procédé de fonctionnement d'une presse, en particulier d'une presse d'estampage à vilebrequin Active EP3380314B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015120546.7A DE102015120546A1 (de) 2015-11-26 2015-11-26 Verfahren zum Betrieb einer Presse, insbesondere einer Schmiedekurbelpresse
PCT/EP2016/078613 WO2017089433A1 (fr) 2015-11-26 2016-11-24 Procédé de fonctionnement d'une presse, en particulier d'une presse à vilebrequin d'estampage

Publications (2)

Publication Number Publication Date
EP3380314A1 true EP3380314A1 (fr) 2018-10-03
EP3380314B1 EP3380314B1 (fr) 2023-05-24

Family

ID=57394564

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16801194.8A Active EP3380314B1 (fr) 2015-11-26 2016-11-24 Procédé de fonctionnement d'une presse, en particulier d'une presse d'estampage à vilebrequin

Country Status (6)

Country Link
EP (1) EP3380314B1 (fr)
JP (1) JP7112956B2 (fr)
CN (1) CN108391425B (fr)
DE (1) DE102015120546A1 (fr)
ES (1) ES2950422T3 (fr)
WO (1) WO2017089433A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110142997B (zh) * 2019-05-14 2024-01-23 南京农业大学 一种多连杆伺服压力机运动控制方法及系统

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10263900A (ja) * 1997-03-27 1998-10-06 Nisshinbo Ind Inc パンチプレスの駆動モータのオーバヒート防止方法
JP2001062591A (ja) * 1999-08-24 2001-03-13 Amada Co Ltd プレス機械
JP2003011000A (ja) * 2001-06-27 2003-01-15 Yuichi Kiryu 冷間鍛造用等の油圧プレスの油圧回路
DE102004009256B4 (de) * 2004-02-26 2008-04-03 Schuler Pressen Gmbh & Co. Kg Mechanische Mehrservopresse
EP2186631A1 (fr) * 2008-11-12 2010-05-19 FMI systems GmbH Bancs de formage dotés d'un mode de fonctionnement efficace
BRPI0823357A2 (pt) * 2008-12-05 2015-06-16 Abb Res Ltda Método em um sistema de produção para limitar energia de pico
DE102009049146B3 (de) 2009-10-12 2011-05-05 Müller Weingarten AG Verfahren zur Generierung einer Stößelkinematik für Servopressen
CN102019707A (zh) * 2010-12-03 2011-04-20 广东锻压机床厂有限公司 伺服压力机高增力比三角连杆-肘杆传动机构
DE102011016669B4 (de) * 2011-04-12 2016-03-24 Schuler Pressen Gmbh Verfahren zum Betreiben einer Presse mit Unterantrieb und danach betriebene Presse
JP5855868B2 (ja) * 2011-07-29 2016-02-09 株式会社栗本鐵工所 鍛造プレス機
JP5555679B2 (ja) * 2011-09-26 2014-07-23 アイダエンジニアリング株式会社 サーボプレスおよびサーボプレスの制御方法
JP5770586B2 (ja) 2011-09-28 2015-08-26 住友重機械工業株式会社 鍛造プレス装置およびその制御方法
JP2013136060A (ja) 2011-12-28 2013-07-11 Aida Engineering Ltd プレス機械およびプレス機械の制御方法
CN203267237U (zh) * 2013-05-02 2013-11-06 江苏扬力集团有限公司 一种压力机的飞轮储能装置
DE102013105468B4 (de) * 2013-05-28 2015-10-01 Schuler Pressen Gmbh Verfahren zur Steuerung einer Presse mit variabler Getriebeübersetzung

Also Published As

Publication number Publication date
DE102015120546A1 (de) 2017-06-01
ES2950422T3 (es) 2023-10-09
CN108391425A (zh) 2018-08-10
JP2018535098A (ja) 2018-11-29
WO2017089433A1 (fr) 2017-06-01
CN108391425B (zh) 2020-09-04
JP7112956B2 (ja) 2022-08-04
EP3380314B1 (fr) 2023-05-24

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