EP0732194B1 - Procédé et dispositif de mesure et de réglage de la position du coulisseau d'une presse à découper à grande vitesse - Google Patents

Procédé et dispositif de mesure et de réglage de la position du coulisseau d'une presse à découper à grande vitesse Download PDF

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Publication number
EP0732194B1
EP0732194B1 EP95103915A EP95103915A EP0732194B1 EP 0732194 B1 EP0732194 B1 EP 0732194B1 EP 95103915 A EP95103915 A EP 95103915A EP 95103915 A EP95103915 A EP 95103915A EP 0732194 B1 EP0732194 B1 EP 0732194B1
Authority
EP
European Patent Office
Prior art keywords
ram
punch press
dead centre
members
tool
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
EP95103915A
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German (de)
English (en)
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EP0732194A1 (fr
Inventor
Oskar Eigenmann
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.)
Bruderer AG
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Bruderer AG
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Application filed by Bruderer AG filed Critical Bruderer AG
Priority to DE59507818T priority Critical patent/DE59507818D1/de
Priority to EP95103915A priority patent/EP0732194B1/fr
Priority to AT95103915T priority patent/ATE189790T1/de
Priority to SG1995002088A priority patent/SG38894A1/en
Priority to JP8026613A priority patent/JPH08309598A/ja
Publication of EP0732194A1 publication Critical patent/EP0732194A1/fr
Application granted granted Critical
Publication of EP0732194B1 publication Critical patent/EP0732194B1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0029—Details of, or accessories for, presses; Auxiliary measures in connection with pressing means for adjusting the space between the press slide and the press table, i.e. the shut height
    • B30B15/0041—Control arrangements therefor

Definitions

  • the present invention relates to a device for measuring and controlling the height of the Ram of a high-speed cutting press with one Lower tool and a relatively movable to the same, upper tool connected to the ram, for cutting, punching, bending and / or embossing processing a band-shaped blank, which pestle is in operation the cutting press between a bottom dead center position and a top dead center position, wherein the cutting press with a through a control device controlled adjusting device for changing the height position the ram is equipped in operation.
  • At Punching presses equipped with tools without fixed stops are known to increase with increasing Working speed and also increasing temperature the immersion depth of the upper tool in the associated one Lower tool too, leading to increased wear on the one hand of the tools and on the other hand to the loss of precision leads to bending and embossing.
  • JP-A-02 151 400 shows a device in which the measuring device for determining the measured values outside of the ram and the platen of the Punching machine are arranged. At this point there is the risk that the measuring device will be damaged. To the disclosed location leads to inaccurate measurements. One reason for this is that during the operation of the cutting press resulting thermal expansions. Another The reason is the structural deformation of the cutting press, especially of the ram, during operation resulting loads, for example on the Eccentric punch loads acting on the ram.
  • the invention seeks to remedy this.
  • the Invention as characterized in the claims solves the task of creating a device in which the position of the ram in the bottom dead center position can be recorded precisely without the position of the Tappet scanned in its bottom dead center position must become.
  • a device is to be shown according to which initially a target position of the ram in the bottom or the top dead center position and then the actual position during operation of the cutting press of the ram in the bottom or top dead center position measured continuously and with the corresponding target position is compared, and in the event of a deviation from a respective actual position from the corresponding target position the height position the plunger is changed so that it the respective target position in the lower or upper dead center position resumes.
  • the advantages achieved by the invention are essentially to be seen in the fact that through dynamic and thermal influences changed position of the Ram also at the top dead center position of the ram can be measured to the bottom dead center position to correct.
  • the top dead center position can be considered the different ram accelerations (handlebar ratio on the crank mechanism) and taking into account the reverse sign (when measuring in the upper Dead center position!)
  • the height of the ram to be corrected for bottom dead center remains constant within set limits like this with a measurement or control at the bottom dead center position without fixed stops in the tool.
  • the Long-term changes due to thermal influences have the ram position when punching with fixed stops effects similar to those caused by dynamics Changes. These changes can be corrected directly regardless of whether they are in the upper or lower Dead center can be measured. With the invention So the possibility of the actual position of the ram in Measure operation where it is required depending on the application, by tool, etc. the most accurate results brings.
  • Figure 1 shows a schematic view a cutting press with a control device and Adjustment device for changing the height of the Stössels
  • Figure 2 shows a section along the Line II-II of Figure 1.
  • FIG. 1 In the schematic representation of FIG. 1 is the cutting press generally with the reference number 1 designated.
  • the plunger 2 is also shown, which Articulated to crank arms 16 via pivot pins 14 which in turn has a crankshaft, not shown, Eccentric shaft or other drive connected to the drive are. Obviously, these components are mentioned to consider only as an example of the drive of the plunger 2.
  • a tool upper part 3 is with the plunger 2 connected, which upper tool part 3 with a lower tool part 4, for example cooperates with a cutting plate.
  • the height of the plunger 2 is in operation the high-speed cutting press adjustable, for what there is a schematically represented servomotor 9, which acts on the plunger 2 via a gear train 10.
  • the position indicator for the ram height adjustment is included the reference number 11 indicated.
  • In the upper part 3 die 8 are used.
  • fixed stops 5, 5A are arranged in the upper part of the tool. Fixed stops are also in the lower tool part 4 6, 6A, 6B, 6C (see FIG. 2). It must be noted here that this representation is purely for example is. Basically, it is only a fixed stop on one of the two tool parts, especially in lower tool part 4 necessary. Each tool part can there are also more fixed stops or with subsequent cutting tools can also have only one workstation there must be at least one fixed stop. With simpler ones Tools by means of which only one punching out fixed stops can also be dispensed with become.
  • This rod-shaped Link 7 is designed so that it is at precise intervals Alternating, distributed along its length Magnetic poles, i.e. alternating north-south pole arrangements having.
  • This can be rod-shaped Link 7 itself magnetized in this way, or a correspondingly alternately poled metal band contain.
  • the plunger 2 which can be moved up and down, rod-shaped member 7 extends through a stationary mounted detector head 12, the at least one Contains coil. It can thus be seen that if one Relative movement between the rod-shaped member 7 and the detector head 12 takes place, an AC voltage in whose at least one coil is induced, which is now called Signal from a programmable electronic control unit 13 is supplied, the output side with the servomotor 9th and the position sensor 11 is connected.
  • Signal from a programmable electronic control unit 13 the output side with the servomotor 9th and the position sensor 11 is connected.
  • the one described Arrangement rod-shaped member 7, detector head 12 and Control unit 13 is known as such and corresponding Devices are available on the market, so there is one detailed description is unnecessary.
  • Control unit 13 supplied which is a well-known Has structure and in which the line 17 supplied actual values are compared with specified target values become. Based on the result of the comparison are from the control unit 13 via line 18 Servomotor 9 and via line 19 to the position transmitter 11 adjustment signals for height adjustment of the ram 2 fed.
  • the punch press can now be operated a desired position of the ram, e.g. bottom dead center position if e.g. no fixed stops available are defined and the corresponding one, from the detector head 12 determined on the rod-shaped link 7 in the Control unit 13 can be stored. After that will be in operation the punch press the actual value of the corresponding one Position of the plunger 2 tapped and with the setpoint compared and if the actual value deviates from the nominal value a corresponding correction of the height of the Tappet made.
  • a desired position of the ram e.g. bottom dead center position if e.g. no fixed stops available are defined and the corresponding one, from the detector head 12 determined on the rod-shaped link 7 in the Control unit 13 can be stored. After that will be in operation the punch press the actual value of the corresponding one Position of the plunger 2 tapped and with the setpoint compared and if the actual value deviates from the nominal value a corresponding correction of the height of the Tappet made.
  • the bottom dead center position of the ram 2 can also the bottom dead center position of the ram 2 for the first time Adjust and to adjust during operation its top dead center position is used as the actual value become. It has been recognized that a change in the bottom dead center position of ram 2 e.g. due to different Stroke rates or temperatures also turn out to be Change of the top dead center position is reflected, however with opposite sign. That means if in Operation the bottom dead center position of the plunger 2 after shifts below, then the top dead center position shifts the plunger 2 upwards. This top dead center position can now also be tapped and with in the control unit 13 reversed programmed sign a corresponding correction of the bottom dead center position carry out. That means it is absolutely is unnecessary to correct the bottom dead center position tap this yourself, or a distance between e.g. the two tools in relation to the bottom dead center position to tap. The top dead center position is sufficient to tap.
  • the operator of the Punch press given complete freedom, depending on the bottom or top dead center position of the ram to control its production accuracy crucial bottom dead center position to be used as the actual value.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Presses (AREA)
  • Presses And Accessory Devices Thereof (AREA)

Claims (2)

  1. Dispositif pour mesurer et régler la hauteur du poinçon (2) d'une presse à découper rapide avec un outil inférieur (4) et un outil supérieur (3) mobile par rapport à celui-ci et relié au poinçon (2), pour usiner une ébauche en forme de bande par découpe, emboutissage, pliage et/ou étampage, le poinçon se mouvant lors du fonctionnement de la presse à découper entre un point mort inférieur et un point mort supérieur, une position de consigne du poinçon (2) au point mort inférieur ou supérieur étant tout d'abord déterminée, la position effective du poinçon (2) au point mort inférieur ou supérieur étant ensuite mesurée de façon continue lors du fonctionnement de la presse à découper et comparée avec la position de consigne correspondante et, lorsqu'une position effective et la position de consigne correspondante diffèrent, la position en hauteur du poinçon (2) étant modifiée de manière à ce qu'il revienne à la position de consigne au point mort inférieur ou supérieur correspondant, la presse à découper possédant un dispositif de réglage (9) commandé par un dispositif de commande (7, 12, 13) pour modifier la hauteur au poinçon (2) pendant le fonctionnement de la presse, ce dispositif de réglage comportant une unité de commande (13) et une unité (7, 12) de détection de la hauteur du poinçon avec un premier organe (7) fixement relié au poinçon, et avec un second organe (12) immobile coopérant avec le premier, ces organes étant ainsi mobiles l'un par rapport à l'autre, l'un (12) des organes (7, 12) étant agencé pour fournir à l'unité de commande (13) un signal indiquant la position relative de ces deux organes (7, 12), le premier organe (7) ayant la forme d'un ruban ou d'une tige comportant une échelle lisible par le second organe (12) immobile et formée par un grand nombre de domaines formant alternativement des pôles nord et sud alignés en direction longitudinale du premier organe (7), cette échelle pouvant induire dans le second organe (12) formant une tête détectrice qui comporte au moins une boucle d'induction un signal représentant la position relative des deux organes (7, 12), la presse à découper comportant un espace de montage des outils déterminé par des colonnes de guidage (15), caractérisé en ce que le premier (7) et le second organe (12) sont disposés en un coin intérieur de l'espace de montage.
  2. Dispositif pour mesurer et régler la hauteur du poinçon (2) d'une presse à découper rapide avec un outil inférieur (4) et un outil supérieur (3) mobile par rapport à celui-ci et relié au poinçon (2), pour usiner une ébauche en forme de bande par découpe, emboutissage, pliage et/ou étampage, le poinçon se mouvant lors du fonctionnement de la presse à découper entre un point mort inférieur et un point mort supérieur, une position de consigne du poinçon (2) au point mort inférieur ou supérieur étant tout d'abord déterminée, la position effective du poinçon (2) au point mort supérieur étant ensuite mesurée de façon continue lors du fonctionnement de la presse à découper et comparée avec la position de consigne correspondante et, lorsqu'une position effective et la position de consigne correspondante diffèrent, la position en hauteur du poinçon (2) étant modifiée de manière à ce qu'il revienne à la position de consigne au point mort inférieur ou supérieur correspondant, la presse à découper possédant un dispositif de réglage (9) commandé par un dispositif de commande (7, 12, 13) pour modifier la hauteur du poinçon (2) pendant le fonctionnement de la presse, ce dispositif de réglage comportant une unité de commande (13) et une unité (7, 12) de détection de la hauteur du poinçon avec un premier organe (7) fixement relié au poinçon, et avec un second organe (12) immobile coopérant avec le premier, ces organes étant ainsi mobiles l'un par rapport à l'autre, l'un (12) des organes (7, 12) étant agencé pour fournir à l'unité de commande (13) un signal indiquant la position relative de ces deux organes (7, 12), le premier organe (7) ayant la forme d'un ruban ou d'une tige comportant une échelle lisible par le second organe (12) immobile et formée par un grand nombre de domaines formant alternativement des pôles nord et sud alignés en direction longitudinale du premier organe (7), cette échelle pouvant induire dans le second organe (12) formant une tête détectrice qui comporte au moins une boucle d'induction un signal représentant la position relative des deux organes (7, 12), la presse à découper comportant un espace de montage des outils déterminé par des colonnes de guidage (15), caractérisé en ce que le premier (7) et le second organe (12) sont disposés en un coin intérieur de l'espace de montage.
EP95103915A 1995-03-17 1995-03-17 Procédé et dispositif de mesure et de réglage de la position du coulisseau d'une presse à découper à grande vitesse Expired - Lifetime EP0732194B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE59507818T DE59507818D1 (de) 1995-03-17 1995-03-17 Verfahren und Vorrichtung zur Messung und Regelung der Höhenstellung des Stössels einer schnellaufenden Schnittpresse
EP95103915A EP0732194B1 (fr) 1995-03-17 1995-03-17 Procédé et dispositif de mesure et de réglage de la position du coulisseau d'une presse à découper à grande vitesse
AT95103915T ATE189790T1 (de) 1995-03-17 1995-03-17 Verfahren und vorrichtung zur messung und regelung der höhenstellung des stössels einer schnellaufenden schnittpresse
SG1995002088A SG38894A1 (en) 1995-03-17 1995-12-11 A method of and an apparatus for measuring and controlling the height position of the ram of a high-speed punch press
JP8026613A JPH08309598A (ja) 1995-03-17 1996-02-14 高速度パンチプレス機のラムの位置を検出し制御する方法およびその装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP95103915A EP0732194B1 (fr) 1995-03-17 1995-03-17 Procédé et dispositif de mesure et de réglage de la position du coulisseau d'une presse à découper à grande vitesse

Publications (2)

Publication Number Publication Date
EP0732194A1 EP0732194A1 (fr) 1996-09-18
EP0732194B1 true EP0732194B1 (fr) 2000-02-16

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ID=8219076

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95103915A Expired - Lifetime EP0732194B1 (fr) 1995-03-17 1995-03-17 Procédé et dispositif de mesure et de réglage de la position du coulisseau d'une presse à découper à grande vitesse

Country Status (5)

Country Link
EP (1) EP0732194B1 (fr)
JP (1) JPH08309598A (fr)
AT (1) ATE189790T1 (fr)
DE (1) DE59507818D1 (fr)
SG (1) SG38894A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011107777A1 (de) 2011-07-15 2013-01-17 Phoenix Contact Gmbh & Co. Kg Vorrichtung und Verfahren zur sicheren Bewegungserkennung mit Toleranzschwelle
WO2020015815A1 (fr) 2018-07-16 2020-01-23 Bruderer Ag Procédé de fonctionnement d'une poinçonneuse et poinçonneuse pour le fonctionnement selon ce procédé
WO2021144012A1 (fr) 2020-01-15 2021-07-22 Bruderer Ag Procédé de fonctionnement d'une presse à estamper et presse à estamper pour le fonctionnement selon le procédé

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19842278A1 (de) * 1998-09-16 2000-03-23 Erfurt Umformtechnik Gmbh Mechanische Kurbel- bzw. Exzenterpresse
DE50111859D1 (de) * 2001-11-06 2007-02-22 Haulick & Roos Gmbh Press- oder Stanzautomat
EP1582336A1 (fr) * 2004-03-30 2005-10-05 Haulick + Roos GmbH Presse, presse de poinçonnage ou dispositif de formage
CN101797810A (zh) * 2010-04-02 2010-08-11 扬州锻压机床集团有限公司 一种高速压力机的下死点调整机构
CN102430682B (zh) * 2011-09-20 2014-08-06 天津市天锻压力机有限公司 高温合金锻造液压机应变速率的设定方法
CN102602033B (zh) * 2012-02-29 2014-10-15 西安交通大学 一种高速压力机滑块装模高度调节装置
CN103309274B (zh) * 2013-05-17 2017-02-08 天津市天锻压力机有限公司 基于双监控系统的锻造液压控制方法
WO2016042421A1 (fr) * 2014-09-19 2016-03-24 Siti - B&T Group S.P.A. Unité de pressage pour une presse pour la production de produits, en particulier de produits en céramique
JP7576412B2 (ja) * 2020-08-17 2024-10-31 株式会社ジャノメ プレス装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59137133A (ja) * 1983-01-28 1984-08-07 Komatsu Ltd プレスのダイハイト自動補正装置
DE3439459A1 (de) * 1983-12-29 1985-07-11 Fukui Machinery Co., Ltd., Fukui Vorrichtung zur automatischen korrektur der position eines schlittens in einer presse
JP2507740B2 (ja) * 1987-05-29 1996-06-19 株式会社 アマダ プレス機械におけるダイハイト調整装置
DE3739023A1 (de) * 1987-11-17 1989-05-24 S & S Elektronik Geraetebau Verfahren zur messung und korrektur der stoesselverstellung bei schnellaufenden hubpressen und schaltung zur durchfuehrung des verfahrens
JPH02151400A (ja) * 1988-12-01 1990-06-11 Aida Eng Ltd プレスのスライド位置自動補正装置
JPH0729223B2 (ja) * 1991-06-28 1995-04-05 アイダエンジニアリング株式会社 プレス機械の下死点位置補正装置
JP2900012B2 (ja) * 1993-08-23 1999-06-02 アイダエンジニアリング株式会社 プレスのスライド下死点位置補正装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011107777A1 (de) 2011-07-15 2013-01-17 Phoenix Contact Gmbh & Co. Kg Vorrichtung und Verfahren zur sicheren Bewegungserkennung mit Toleranzschwelle
EP2549234A2 (fr) 2011-07-15 2013-01-23 Phoenix Contact GmbH & Co. KG Dispositif et procédé pour la détection sûre de mouvements avec un seuil de tolérance
WO2020015815A1 (fr) 2018-07-16 2020-01-23 Bruderer Ag Procédé de fonctionnement d'une poinçonneuse et poinçonneuse pour le fonctionnement selon ce procédé
WO2021144012A1 (fr) 2020-01-15 2021-07-22 Bruderer Ag Procédé de fonctionnement d'une presse à estamper et presse à estamper pour le fonctionnement selon le procédé

Also Published As

Publication number Publication date
ATE189790T1 (de) 2000-03-15
EP0732194A1 (fr) 1996-09-18
SG38894A1 (en) 1997-04-17
JPH08309598A (ja) 1996-11-26
DE59507818D1 (de) 2000-03-23

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