EP0732194A1 - 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
EP0732194A1
EP0732194A1 EP95103915A EP95103915A EP0732194A1 EP 0732194 A1 EP0732194 A1 EP 0732194A1 EP 95103915 A EP95103915 A EP 95103915A EP 95103915 A EP95103915 A EP 95103915A EP 0732194 A1 EP0732194 A1 EP 0732194A1
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EP
European Patent Office
Prior art keywords
ram
link
dead center
center position
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.)
Granted
Application number
EP95103915A
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German (de)
English (en)
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EP0732194B1 (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
Original Assignee
Bruderer 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8219076&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0732194(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Bruderer AG filed Critical Bruderer AG
Priority to AT95103915T priority Critical patent/ATE189790T1/de
Priority to EP95103915A priority patent/EP0732194B1/fr
Priority to DE59507818T priority patent/DE59507818D1/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
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 method for measuring and regulating the height of the ram of a high-speed cutting press with a lower tool and an upper tool that is relatively movable with it and connected to the ram, for cutting, punching, bending and / or shaping processing of a band-shaped blank, which ram moves between a bottom dead center position and an upper dead center position during operation of the cutting press. It further relates to a device for performing this method, the cutting press being equipped with an adjusting device controlled by a control device for changing the height position of the ram during operation.
  • the processing operations are carried out on the band-shaped blank when the ram passes through the area of the bottom dead center of its movement.
  • Decisive for the machining of the blank, for wear of tool parts, for loads on the entire punch press is generally the situation with regard to the position of the ram when it is in the mentioned area of bottom dead center, and deviations of the ram from its target position in the bottom Dead center brings various disadvantages.
  • Such deviations arise in particular in the case of high-speed punch presses, for example in the case of strokes over 600 strokes per minute, due to speed changes which lead to dynamic influences with regard to the position of the ram at bottom dead center, and such deviations can also arise due to thermal influences.
  • the tools are often equipped with fixed stops.
  • These fixed stops usually have the function of a certain closing dimension under all operating conditions, i.e. e.g. Number of strokes, temperature, to force.
  • the position of the ram at bottom dead center is always unchanged.
  • the punch press is already tensioned in the static dead center in the bottom dead center position.
  • the compressive forces in the fixed stops can increase by a multiple of their static values. The press is subjected to additional forces that are not involved in the actual punching process and are therefore undesirable.
  • the invention seeks to remedy this.
  • the invention as characterized in the claims, achieves the object of providing a method and a device in which the position of the plunger in the bottom dead center position can be detected without the position of the plunger being in its bottom dead center position must be scanned. Furthermore, a method and a device are to be shown, according to which initially a desired position of the ram is determined in the lower or upper dead center position and then the actual position of the ram is continuously measured in the lower or upper dead center position during operation of the cutting press and with the corresponding target position is compared, and if a respective actual position deviates from the corresponding target position, the height position of the ram is changed such that it returns to the respective target position in the lower or upper dead center position.
  • the advantages achieved by the invention are essentially to be seen in the fact that the position of the plunger changed by dynamic and thermal influences can also be measured when the plunger is at the top dead center in order to correct the bottom dead center position.
  • the height position of the tappet can be corrected so that it relates to the bottom dead center in specified limits remains constant, as is the case with a measurement or control at the bottom dead center position without fixed stops in the tool.
  • the long-term changes in the ram position caused by thermal influences have similar effects when punching with fixed stops as the dynamic changes. These changes can be corrected directly, regardless of whether they are measured at top or bottom dead center. With the invention there is thus the possibility of optionally measuring the actual position of the ram in operation where it brings the most accurate results depending on the application, tool, etc.
  • Figure 1 shows a schematic view of a cutting press with a control device and adjusting device for changing the height of the ram
  • Figure 2 shows a section along the line II-II of Figure 1.
  • the cutting press is generally designated by the reference number 1.
  • the plunger 2 is also shown, which is articulated via pivot pins 14 to crank arms 16, which in turn are drive-connected to a crankshaft, eccentric shaft or other type of drive, not shown. Obviously, these components are only to be considered as an example of the drive of the plunger 2.
  • An upper tool part 3 is connected to the plunger 2, which upper tool part 3 interacts with a lower tool part 4, for example with a cutting plate.
  • the height of the plunger 2 is adjustable during operation of the high-speed cutting press, for which purpose there is a schematically represented servomotor 9, which acts on the plunger 2 via a gear train 10.
  • the position indicator of the ram height adjustment is indicated by reference number 11.
  • Cutting punches 8 are inserted in the upper part 3 of the tool.
  • a rod-shaped link 7 is rigidly connected to the plunger 2.
  • This rod-shaped member 7 is designed such that it has alternating magnetic poles which are arranged at precise intervals along its longitudinal extent, that is to say alternating north-south pole arrangements.
  • the rod-shaped member 7 can itself be magnetized in this way, or can contain a correspondingly alternately poled metal strip.
  • the described arrangement of rod-shaped member 7, detector head 12 and control unit 13 is known as such and corresponding devices are available on the market, so that a detailed description is unnecessary.
  • the rod-shaped member 7, which can also be referred to as a scale, and the detector head 12 are arranged at an inner corner region of the tool installation space of the punch press, as can be seen in particular from FIG. 2, that is to say in the vicinity of a guide column 15 of the plunger 2.
  • the measuring device, ie the components 7, 12 is located at a point which is the smallest distance from the tool center, but the available tool installation space is not obstructed is.
  • the measured values resulting in the detector head 12 are supplied as signal values via the line 17 to the control unit 13, which has a generally known structure and in which the actual values supplied via the line 17 are compared with specified target values. Based on the result of the comparison, the control unit 13 sends adjustment signals for adjusting the height of the plunger 2 via the line 18 to the servomotor 9 and via the line 19 to the position transmitter 11.
  • a set position of the ram e.g. bottom dead center position if e.g. no fixed stops are present and the corresponding value determined by the detector head 12 on the rod-shaped member 7 is stored in the control unit 13.
  • the actual value of the corresponding position of the plunger 2 is then tapped during operation of the punch press and compared with the setpoint value, and if the actual value deviates from the setpoint value, the height position of the plunger is corrected accordingly.
  • the bottom dead center position of the plunger 2 its top dead center position can be used as the actual value for the initial setting and adjustment during operation. It has been recognized that a change in the bottom dead center position of the plunger 2, for example due to different stroke rates or temperatures, is also reflected as a change in the top dead center position, but with the opposite sign. This means when the bottom dead center position of the plunger 2 follows in operation moves down, then the top dead center position of the plunger 2 moves up. This top dead center position can now also be tapped and a corresponding correction of the bottom dead center position can be carried out with the sign programmed in reverse in the control unit 13. This means that it is absolutely unnecessary to tap the bottom dead center position itself to correct it, or to tap a distance between, for example, the two tools in relation to the bottom dead center position. It is sufficient to tap the top dead center position.
  • the operator of the punch press is now given complete freedom to use the lower or upper dead center position of the ram, depending on the tool installed, to control its bottom dead center position, which is decisive for production accuracy, as the actual value.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Presses (AREA)
  • Presses And Accessory Devices Thereof (AREA)
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
AT95103915T ATE189790T1 (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
DE59507818T DE59507818D1 (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 true EP0732194A1 (fr) 1996-09-18
EP0732194B1 EP0732194B1 (fr) 2000-02-16

Family

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 (6)

* 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
EP1308268A1 (fr) * 2001-11-06 2003-05-07 Haulick + Roos GmbH Machine automatique pour le pressage ou l'estampage
EP1582336A1 (fr) * 2004-03-30 2005-10-05 Haulick + Roos GmbH Presse, presse de poinçonnage ou dispositif de formage
CN102602033A (zh) * 2012-02-29 2012-07-25 西安交通大学 一种高速压力机滑块装模高度调节装置
CN103309274A (zh) * 2013-05-17 2013-09-18 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

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE102011107777A1 (de) 2011-07-15 2013-01-17 Phoenix Contact Gmbh & Co. Kg Vorrichtung und Verfahren zur sicheren Bewegungserkennung mit Toleranzschwelle
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
US20210291474A1 (en) * 2018-07-16 2021-09-23 Bruderer Ag Methods of operating a stamping press and stamping presses for operation according to the methods
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
JP7576412B2 (ja) * 2020-08-17 2024-10-31 株式会社ジャノメ プレス装置

Citations (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
JPS63299900A (ja) * 1987-05-29 1988-12-07 Amada Co Ltd プレス機械におけるダイハイト調整装置
EP0316519A1 (fr) * 1987-11-17 1989-05-24 S + S Elektronik Gerätebau Gmbh Procédé pour mesurer et corriger le réglage coulisseau des presses à estamper à grande vitesse et montage pour la réalisation du procédé
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
EP0554501A1 (fr) * 1991-06-28 1993-08-11 Aida Engineering Ltd. Dispositif de correction de la position du point mort inférieur d'une presse
EP0649733A1 (fr) * 1993-08-23 1995-04-26 Aida Engineering Ltd. Dispositif de correction de la position du point mort d'une presse mécanique

Patent Citations (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
JPS63299900A (ja) * 1987-05-29 1988-12-07 Amada Co Ltd プレス機械におけるダイハイト調整装置
EP0316519A1 (fr) * 1987-11-17 1989-05-24 S + S Elektronik Gerätebau Gmbh Procédé pour mesurer et corriger le réglage coulisseau des presses à estamper à grande vitesse et montage pour la réalisation du procédé
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
EP0554501A1 (fr) * 1991-06-28 1993-08-11 Aida Engineering Ltd. Dispositif de correction de la position du point mort inférieur d'une presse
EP0649733A1 (fr) * 1993-08-23 1995-04-26 Aida Engineering Ltd. Dispositif de correction de la position du point mort d'une presse mécanique

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 008, no. 263 (M - 342) 4 December 1984 (1984-12-04) *
PATENT ABSTRACTS OF JAPAN vol. 013, no. 130 (M - 808) 30 March 1989 (1989-03-30) *
PATENT ABSTRACTS OF JAPAN vol. 014, no. 399 (M - 1017) 29 August 1990 (1990-08-29) *

Cited By (8)

* 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
EP1308268A1 (fr) * 2001-11-06 2003-05-07 Haulick + Roos GmbH Machine automatique pour le pressage ou l'estampage
EP1582336A1 (fr) * 2004-03-30 2005-10-05 Haulick + Roos GmbH Presse, presse de poinçonnage ou dispositif de formage
CN102602033A (zh) * 2012-02-29 2012-07-25 西安交通大学 一种高速压力机滑块装模高度调节装置
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
CN103309274A (zh) * 2013-05-17 2013-09-18 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
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

Also Published As

Publication number Publication date
EP0732194B1 (fr) 2000-02-16
DE59507818D1 (de) 2000-03-23
SG38894A1 (en) 1997-04-17
ATE189790T1 (de) 2000-03-15
JPH08309598A (ja) 1996-11-26

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