WO2006045279A2 - Système d'entraînement d'une presse de formage - Google Patents

Système d'entraînement d'une presse de formage Download PDF

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Publication number
WO2006045279A2
WO2006045279A2 PCT/DE2005/001877 DE2005001877W WO2006045279A2 WO 2006045279 A2 WO2006045279 A2 WO 2006045279A2 DE 2005001877 W DE2005001877 W DE 2005001877W WO 2006045279 A2 WO2006045279 A2 WO 2006045279A2
Authority
WO
WIPO (PCT)
Prior art keywords
forming press
drive system
crank
plunger
movement
Prior art date
Application number
PCT/DE2005/001877
Other languages
German (de)
English (en)
Other versions
WO2006045279A3 (fr
Inventor
Uwe Darr
Steffen Schmidt
Ulrich Frank
Original Assignee
Müller Weingarten 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 Müller Weingarten AG filed Critical Müller Weingarten AG
Priority to JP2007538262A priority Critical patent/JP5026977B2/ja
Priority to CN2005800447692A priority patent/CN101087686B/zh
Publication of WO2006045279A2 publication Critical patent/WO2006045279A2/fr
Publication of WO2006045279A3 publication Critical patent/WO2006045279A3/fr

Links

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
    • B30B15/14—Control arrangements for mechanically-driven presses
    • 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
    • B30B1/10—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 toggle mechanism
    • B30B1/14—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 toggle mechanism operated by cams, eccentrics, or cranks
    • 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
    • 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
    • B30B1/268—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 using a toggle connection between driveshaft and press ram
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G3/00—Other motors, e.g. gravity or inertia motors
    • F03G3/08—Other motors, e.g. gravity or inertia motors using flywheels
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Definitions

  • the invention relates to a drive system of a forming press having the features of the preamble of one of the claims 1 to 4.
  • the pendulum movement is generated with adjustable angular deflection either by alternately coupling a respective right- and left-handed motor-driven flywheel or by a flywheel-less umpolbaren electric motor.
  • An influence on the velocity profile during the ram stroke is not provided.
  • the solution with umpolbarem motor requires in particular in the phase of the forming process, an increased peak power from the power supply of the system.
  • the invention has for its object to design a drive system for a press so that with freely programmable size and sequence of strokes and flexible speed and force profiles each pressure point of the plunger with separate force and position control can be controlled. Furthermore, the energy consumption from the supply network, the cycle-induced load fluctuations and the network perturbations should be minimized without the use of additional energy storage devices. In forming presses with multiple pressure points, the possibility of tilt control of the ram should be created.
  • the core idea of the invention consists of the advantages of hydraulic presses with regard to free programmability of the travel, speed and force profiles to combine the advantages of mechanical presses with regard to increased productivity, rigidity and path-controlled reproducibility of the lower reversal point.
  • Essential to the invention is that one or more electric drives act as a servomotor on a crank mechanism so that in addition to the free programmability of path, speed and force profiles, a flexible use of path and / or force-related motion sequences is possible.
  • the lower reversal point is controlled in analogy to hydraulic presses as a function of the programmed forces. In.
  • the simple stroke of the electric drive corresponds to a simple ram stroke, with the reversing motion of the electric drive taking place at the lower point of reversal of the ram.
  • the high positioning accuracy and mechanical stiffness of the servo axis also allows a path-bound plunger movement with reversing the electric drive in the lower reversal point of the plunger. If the electric drive swings through the crank mechanism in the lower reversal point of the plunger without stopping, the advantage of the path-controlled plunger movement of mechanical presses can be used in a further mode at a high clock rate. It is achieved with a simple stroke of the electric drive, a double ram stroke with forward and return stroke, which reduces energy consumption and the cycle rate of the press is increased.
  • the electric drive drives the crank drive directly or indirectly via an intermediate gear, such as a gear ratio.
  • an intermediate gear such as a gear ratio.
  • several servomotors act on the crank mechanism.
  • the secondary wheel belonging to the transmission it is possible for the secondary wheel belonging to the transmission to be designed as a toothed segment, whose angle corresponds to the largest possible pendulum deflection.
  • the crank drive is combined with a knee lever in an advantageous embodiment.
  • crank drive assigned in each case to the individual pressure points can be controlled separately in the force and position control, whereby, on the one hand, the tilting which can be produced as a result of off-center force application can be compensated and, on the other hand, a desired tilting can be achieved for parallel holding of the pushrod.
  • the energy balance of the press is improved by an energy exchange taking place between the servomotor for the main movement of the plunger and further servomotors present in the press for secondary movements, for example for drawing devices which can be driven by an electric motor, such that in the movement cycle the energy fed back during the braking phases in the generator mode of the servomotors is fed into the servo motors in the motor mode.
  • Drive system combines the advantages of mechanical and hydraulic presses, is a substantially identical forming press for training purposes and production available.
  • Fig. 4 diagram with movement and drive power for main and secondary movements
  • the drive 2 is effected by means of a crank mechanism 3, wherein each pressure point of the plunger 1 is driven separately.
  • the plunger 1 is shown in its upper stroke position, in which the crank mechanism 3 is in its inner angular position 10.
  • the crank mechanism 3 consists of a crankshaft 18 mounted in the head piece 19 each crank 8, which is connected via the hinged at the other end connecting rod 9 with the pressure point 4 of the plunger 1.
  • the drive of the crank 8 takes place indirectly by a freely programmable servo motor 5 with intermediate gear 6 in the form of a gear ratio.
  • crank mechanism 3 passes through only a defined angular deflection for the movement of the plunger 1, this can be the gear 6 associated output element can be formed as a toothed segment 7.
  • the servomotors 5 is for the movement of the plunger 1 is a flexible Wegs- andmors ⁇ characteristic; programmable, taking into account the gear ratio of the crank mechanism 3.
  • Position, speed and torque of the servo motors 5 are controlled by means of an NC control so that the desired movement and force curves can be achieved. It is essential that the motion sequences are generated in a first embodiment by means of guide shaft-controlled electronic cams, which specify the desired position of the plunger 1.
  • the forming press is operated on the one hand wegdem with a defined lower reversal point, which is in the stretched position 13 of the crank mechanism 3.
  • the servo-driven forming press can be operated by force, by the force is limited control side in the extended position 13.
  • the crank mechanism can be operated so that it swings through at the lower reversal point of the plunger 1 without support and thus takes advantage of the path-bound plunger movement to achieve a high clock rate.
  • the crank 8 with an inner and an outer angular position 10, 11 alternately reaches the upper reversal point of the plunger 1.
  • the pressure points 4 of the plunger 1 are mechanically synchronized in such a way that the servomotors 5 act together on the crank mechanisms 3 associated with the pressure points 4.
  • the gear 6 assigned Power transmission elements for example, the toothed segments 7 are operatively connected to each other.
  • FIG. 2 shows a second embodiment in which a crank mechanism 14 is combined with a toggle 16.
  • the crank 8 of the crank mechanism 14 is driven in analogy to the first embodiment in each case by means of the two servomotors 5 and intermediate gear 6.
  • the crank 8 is connected via the pressure plate 15 with the lever 17 of the bell crank 16.
  • the toggle lever 16 is mounted on the frame side in the head piece 19 in the lever bearing 20.
  • the pressure tab 15, the lever 17 and the connecting rod 9 connected to the pressure point 4 have a common pivot point, whereby a four-point toggle mechanism 21 is formed.
  • the toggle lever 16 reaches its inner buckling position 22.
  • the servomotor 5 need not be braked in this mode of operation, since during the lower reversal point of the plunger of the crank mechanism 3 passes through its lower reversal point.
  • the essentially flywheel-free drives 2 by means of servomotors 5 can cause load fluctuations with not inconsiderable peak powers in the energy absorption from the supply network 29.
  • One way to improve the energy balance of the forming press, is supported by Figures 3 and 4 described below.
  • servomotors 5 for the main movement of the plunger 1 are used for secondary movements in the forming press, such as drawing devices.
  • FIG. 4 the path-time characteristic with the phase-related positions for the plunger 1 and the drive of the pulling device 28 is shown. After the impact point of ram 1 on the drawing device, it is actively moved by the servomotors 5 of the plunger 1, wherein the associated drives 28 in the generator mode by braking apply the required force of the pulling device for the forming process. In this phase with the greatest energy demand for the motor-driven servomotors 5 of the plunger 1 28 energy is fed back as a result of the generator-operated servomotors of the pulling device.
  • a further energy exchange can take place in the press cycle according to diagram (Fig.4) in the phase of braking the servomotors for the plunger 1 to achieve the upper reversal point to the effect of now fed back by the plunger 1 energy in the phase of run-up motor-driven drives for the pulling device 28 is supplied via the intermediate circuit coupling.
  • the time-related courses of the motor and generator-acting drive powers are respectively for the plunger 1 and the drives of the pulling device 28 from the two middle curves of the diagram of FIG. 4 can be seen.
  • the resulting drive power is shown in the lower curve.

Abstract

L'invention concerne un système d'entraînement d'une presse de formage où la longueur et la succession des courses de levage sont programmables et les profils de vitesse et de puissance sont flexibles, chaque point de pression du coulisseau pouvant être piloté par une régulation de position et de force séparée. L'invention vise en outre à minimiser l'absorption d'énergie du réseau d'alimentation, les variations de charges dépendant des cycles et les rétroactions de réseau sans utiliser d'énergie stockée supplémentaire. Pour des presses de formage à plusieurs points de pression, le renversement du coulisseau doit pouvoir être régulé. A cet effet, l'invention propose une solution qui allie les avantages de presses hydrauliques en termes de profils de courses, de vitesses et de puissances librement programmables et les avantages de presses mécaniques en termes d'augmentation de rendement, de rigidité et de reproductibilité du point d'inversion inférieur en fonction de la course. Un ou plusieurs entraînements électriques en tant que servomoteurs agissent sur une transmission à manivelle de telle sorte qu'en plus des profils de courses, de vitesses et de puissances librement programmables, le déroulement des mouvements liés à la course et/ou à la puissance est mis à profit de manière souple.
PCT/DE2005/001877 2004-10-25 2005-10-20 Système d'entraînement d'une presse de formage WO2006045279A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2007538262A JP5026977B2 (ja) 2004-10-25 2005-10-20 成形プレスの駆動システム
CN2005800447692A CN101087686B (zh) 2004-10-25 2005-10-20 成型压力机驱动系统

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004051993A DE102004051993B4 (de) 2004-10-25 2004-10-25 Antriebssystem einer Umformpresse
DE102004051993.5 2004-10-25

Publications (2)

Publication Number Publication Date
WO2006045279A2 true WO2006045279A2 (fr) 2006-05-04
WO2006045279A3 WO2006045279A3 (fr) 2006-07-27

Family

ID=35708824

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2005/001877 WO2006045279A2 (fr) 2004-10-25 2005-10-20 Système d'entraînement d'une presse de formage

Country Status (4)

Country Link
JP (1) JP5026977B2 (fr)
CN (1) CN101087686B (fr)
DE (1) DE102004051993B4 (fr)
WO (1) WO2006045279A2 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007140765A2 (fr) * 2006-06-08 2007-12-13 Müller Weingarten AG Système d'entraînement d'une presse de formage
EP1930149A1 (fr) * 2006-12-05 2008-06-11 Burkhardt GmbH Maschinenfabrik Entrainement pour presse à excentrique
WO2008134990A1 (fr) * 2007-05-02 2008-11-13 Müller Weingarten AG Système d'entraînement d'une presse de formage à poinçons multiples
EP1995050A1 (fr) 2007-05-24 2008-11-26 Fagor, S.Coop. Système d'alimentation en énergie électrique pour presses
WO2010009694A2 (fr) * 2008-07-25 2010-01-28 Müller Weingarten AG Système d'entraînement d'une presse de formage
CN110280632A (zh) * 2019-07-22 2019-09-27 南京邮电大学 基于复合驱动的高速重载机械式全电伺服数控折弯机

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Publication number Priority date Publication date Assignee Title
TWI353300B (en) * 2007-03-14 2011-12-01 Ihi Corp Pressing machine
DE102009049845A1 (de) * 2009-10-19 2011-04-21 Dorst Technologies Gmbh & Co. Kg Metall- oder Keramikpulver-Presse und Steuerverfahren dafür
CN102172759B (zh) * 2010-01-07 2013-07-03 上海交通大学 六电机并联驱动机械多连杆伺服压力机
DE102010006120B4 (de) * 2010-01-29 2013-04-11 Schuler Pressen Gmbh & Co. Kg Presse mit Servo-Zieheinrichtung und Gelenkantrieb
DE102010060627B4 (de) 2010-11-17 2020-11-05 Langenstein & Schemann Gmbh Umformmaschine mit Stößelregelung
CN102172760B (zh) * 2011-03-02 2013-03-20 上海交通大学 曲柄输入的四伺服电机并联驱动的多连杆压力机
CN102228950B (zh) * 2011-05-31 2013-07-03 上海交通大学 双伺服电机并联驱动多连杆压力机
DE102012102527B4 (de) 2012-03-23 2014-10-09 Schuler Pressen Gmbh Pressenantrieb mit mehreren Arbeitsbereichen
JP5953631B2 (ja) * 2012-08-29 2016-07-20 株式会社ニイガタマシンテクノ 射出成形機の型締装置
JP7122189B2 (ja) * 2018-08-03 2022-08-19 株式会社アマダ 金型プレス装置及び金型プレス方法
CN110280635A (zh) * 2019-07-22 2019-09-27 南京邮电大学 基于扭轴结构的多连杆全电伺服同步折弯机

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007140765A2 (fr) * 2006-06-08 2007-12-13 Müller Weingarten AG Système d'entraînement d'une presse de formage
WO2007140765A3 (fr) * 2006-06-08 2008-11-13 Mueller Weingarten Maschf Système d'entraînement d'une presse de formage
US8549940B2 (en) 2006-06-08 2013-10-08 Mueller Weingarten Ag Drive system of a forming press
DE102007026727B4 (de) * 2006-06-08 2014-12-31 Müller Weingarten AG Antriebssystem einer Umformpresse
EP1930149A1 (fr) * 2006-12-05 2008-06-11 Burkhardt GmbH Maschinenfabrik Entrainement pour presse à excentrique
WO2008134990A1 (fr) * 2007-05-02 2008-11-13 Müller Weingarten AG Système d'entraînement d'une presse de formage à poinçons multiples
EP1995050A1 (fr) 2007-05-24 2008-11-26 Fagor, S.Coop. Système d'alimentation en énergie électrique pour presses
WO2010009694A2 (fr) * 2008-07-25 2010-01-28 Müller Weingarten AG Système d'entraînement d'une presse de formage
WO2010009694A3 (fr) * 2008-07-25 2010-05-14 Müller Weingarten AG Système d'entraînement d'une presse de formage
US8910569B2 (en) 2008-07-25 2014-12-16 Mueller Weingarten Ag Drive system for a forming press
CN110280632A (zh) * 2019-07-22 2019-09-27 南京邮电大学 基于复合驱动的高速重载机械式全电伺服数控折弯机
CN110280632B (zh) * 2019-07-22 2024-03-26 南京邮电大学 基于复合驱动的高速重载机械式全电伺服数控折弯机

Also Published As

Publication number Publication date
CN101087686B (zh) 2012-08-01
DE102004051993B4 (de) 2008-11-27
JP2008517769A (ja) 2008-05-29
WO2006045279A3 (fr) 2006-07-27
JP5026977B2 (ja) 2012-09-19
CN101087686A (zh) 2007-12-12
DE102004051993A1 (de) 2006-06-14

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