EP2228177A1 - Dispositif d'entrainement guidé manuellement pour un appareil de pressage ainsi que procédé de commande d'un dispositif d'entraînement guidé manuellement pour un appareil de pressage - Google Patents

Dispositif d'entrainement guidé manuellement pour un appareil de pressage ainsi que procédé de commande d'un dispositif d'entraînement guidé manuellement pour un appareil de pressage Download PDF

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Publication number
EP2228177A1
EP2228177A1 EP10155953A EP10155953A EP2228177A1 EP 2228177 A1 EP2228177 A1 EP 2228177A1 EP 10155953 A EP10155953 A EP 10155953A EP 10155953 A EP10155953 A EP 10155953A EP 2228177 A1 EP2228177 A1 EP 2228177A1
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EP
European Patent Office
Prior art keywords
hydraulic
pressing
speed
drive
drive device
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
EP10155953A
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German (de)
English (en)
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EP2228177B1 (fr
Inventor
Martin Dipl.-Ing. Bungter
Günther Odenthal
Jörg Hanisch
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.)
Novopress GmbH Pressen und Presswerkzeuge and Co KG
Original Assignee
Novopress GmbH Pressen und Presswerkzeuge and Co KG
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.)
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Publication date
Application filed by Novopress GmbH Pressen und Presswerkzeuge and Co KG filed Critical Novopress GmbH Pressen und Presswerkzeuge and Co KG
Priority to PL10155953T priority Critical patent/PL2228177T3/pl
Publication of EP2228177A1 publication Critical patent/EP2228177A1/fr
Application granted granted Critical
Publication of EP2228177B1 publication Critical patent/EP2228177B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/10—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting fittings into hoses

Definitions

  • the invention relates to a handleable drive device for a pressing device and a method for controlling a hand-held drive device for a pressing device.
  • the present invention relates to a pressing device with such a drive device.
  • hand-held pressing devices which consist of a drive device and a one-sided consist of a coupling mounted, adapted to the particular application pressing tool.
  • the drive device is formed electrohydraulically in the present type of such pressing devices.
  • a mains or battery-powered, electric drive motor drives a hydraulic pump, which may be designed as a piston or gear pump.
  • the hydraulic pump acts on an actuating device in the form of a hydraulic motor.
  • such a hydraulic motor is designed as a piston-cylinder unit with a hydraulic piston arranged in a hydraulic piston whose piston rod acts on the pressing tool.
  • To the hydraulic pump includes a hydraulic reservoir, from which the hydraulic pump sucks hydraulic fluid through its suction side and promotes via its pressure side in the pressure chamber of the piston-cylinder unit.
  • the hydraulic system also includes a connection between the pressure side of the hydraulic motor and the hydraulic reservoir.
  • a pressure relief valve is arranged, which is initially closed during the pressing process and only when reaching a certain maximum pressure, also called cut-off pressure, opens to the hydraulic reservoir.
  • the cut-off pressure is designed so high that in a normal pressing operation opening only takes place when the pressing process is completed, so that the pressing tool has reached its final pressing position.
  • a press device which is provided with a fault monitoring function.
  • a physical variable such as, for example, the electrical current or the force to be applied, is monitored via an actual value pickup and compared with a setpoint value curve. As soon as the actual value course deviates from the setpoint course in an inadmissible manner, this is indicated via a signal device or the drive motor is switched off.
  • the EP 1 230 998 A2 a method for automatic control of electro-hydraulic hand tools and in particular hand presses, in which the drive motor is automatically switched off after completion of the pressing operation. As an indicator of the completion of the pressing process, each current drop is monitored after opening the pressure relief valve.
  • the object of the invention is to provide a hand-held drive device for pressing devices, in which the reliability is improved. It is another object of the invention to provide a corresponding method for controlling a hand-held drive device for pressing devices.
  • the object is achieved according to the invention by a handleable drive device according to claim 1 or a method for controlling a handleable drive device according to claim 10.
  • the drive device has an actual value sensor for detecting the rotational speed of the drive motor.
  • the drive motor is switched off when the evaluation device detects an increase in the detected by the Istwertaufêt actual speed after opening the pressure relief valve.
  • the invention is based on the consideration of carrying out a plausibility check at the end of the pressing process.
  • the pressing process is terminated in a first control, when the pressure relief valve opens and thus a predetermined pressure, which correlates to the pressing pressure, is constructed.
  • a predetermined pressure which correlates to the pressing pressure
  • it is also checked whether the recorded data confirms that the drive motor is also in an operating condition that corresponds to a successful pressing process. An operator is then preferably notified as to whether the pressing process has been completed properly or not.
  • the speed directly correlates to the pressing force, with a high speed equal to a low load and a low speed indicative of a high load.
  • a target load speed can be defined, which must be undercut for reaching a prescribed pressing force. Falling below this predefined target load speed means that the required pressing force has been achieved.
  • the target load speed forms the upper limit of a downwardly open target load speed range, which is stored in the evaluation device.
  • a lower limit for the permissible target load speed range can also be defined in order to detect overshoots of the permissible pressing force in this way.
  • the evaluation device detects the idling speed before the beginning of a compression and predetermines the target load speed range as a function of the measured idling speed. In this embodiment, therefore, first the idle speed is measured. This is the speed with which the press unit moves without load to a fitting. If the idling speed is low, so will the load speed when opening the pressure relief valve will be lower, and in reverse, the idle speed is high, so the load speed will be higher. Accordingly, the target load speed range is predetermined as a function of the idle speed measured before the pressing process. This can be determined empirically.
  • the Istwertaufsacrificing a held on the output shaft of the drive motor signal generator, distributed over the circumference, in particular at equal intervals contactor, and a device-fixed sensor that detects the emanating from the contactors contacts and corresponding signals to the controller emits, wherein the control device determines the actual speed from the detected signals.
  • the speed sensor on its periphery wear a magnet as a contactor and the sensor detects the outgoing of the magnet magnetic fields and corresponding signals to the control device.
  • Optical contactors are also possible.
  • the speed sensor receives from the attached to the output shaft of the drive motor or elsewhere in the drive train magnet per engine compartment rotation in each case a plurality of pulses that are counted. Due to the design-related pulsating load of a hydraulic piston pump, a smoothing of the speed curve may be necessary. This is done by calculation and is dependent on the structure of the pump and the gear ratio. An advantage of this method is that only counts the pulses and the speed is calculated from the number of pulses. An AD converter as in current or voltage measurements is not required here, which makes the evaluation easy.
  • the hydraulic motor can be designed in a manner known per se as a piston-cylinder unit with a hydraulic cylinder and a hydraulic piston.
  • the pressure relief valve in the hydraulic piston and / or in a piston rod of the hydraulic piston is arranged (see. DE 203 03 877 UI and DE 20 2004 000 215 U1 ).
  • a control valve may also be provided in addition, as it DE 20 2004 000 215 UI can be taken, the content of which is hereby made the disclosure of the present application.
  • the invention relates to a method for controlling a hand-held drive device for a pressing device, wherein the method is preferably carried out with the drive device described above.
  • a hydraulic pump is driven via a hydraulic system with a hydraulic motor by a drive motor, which is in particular an electric motor, for carrying out a pressing operation.
  • a drive motor which is in particular an electric motor
  • a pressure relief valve is opened, so that the hydraulic medium is in particular returned to a hydraulic reservoir.
  • a rotational speed of the drive motor is detected with the aid of an actual value pickup. According to the invention then takes a shutdown of the drive motor, if after the opening of the pressure relief valve, an increase in the detected speed is detected.
  • the detected after opening the pressure relief valve actual speed is compared with a stored target speed range in an evaluation.
  • a stored target speed range By means of such a comparison, it can be ensured in the context of the plausibility check that a correct compression has been carried out when the detected actual rotational speed is within the desired rotational speed range.
  • it can be displayed by means of a signaling device, whether the actual speed is within the stored target speed range and thus a proper compression was performed.
  • the idling speed of the drive motor is preferably detected before the beginning of the compression and then predetermined depending on the measured idle speed of the target speed range.
  • the illustrated pressing apparatus 1 has an elongated drive unit 2, at one end of which a pressing tool 3 is coupled, which is suitable for the compression of press fittings, which serve to connect pipe ends.
  • the drive unit 2 has at the opposite end of the pressing tool 3, a drive motor 4, whose output shaft 5 is coupled to a pump shaft 6 of a total of 7 designated hydraulic pump.
  • the pump shaft 6 is guided in the hydraulic pump 7 in two bearings 8, 9 and has between the two bearings an eccentric 10 which acts via a needle bearing 11 on a radially displaceably guided pump piston 12.
  • the pump piston 12 is moved radially back and forth.
  • the housing of the hydraulic pump 7 is surrounded on the outside by an elastomeric hose 13 which encloses a hydraulic reservoir 14 between them and the outside of the hydraulic pump 7 in a liquid-tight manner.
  • the hydraulic pump 7 is flanged in the axial direction on the side facing away from the electric motor 4 to a hydraulic motor in the form of a piston-cylinder unit 19.
  • the piston-cylinder unit 19 has a hydraulic cylinder 20 which is closed on the hydraulic pump side with an end plate 21.
  • a hydraulic piston 22 is guided displaceably. He divides the interior of the hydraulic cylinder 20 in an end plate-side pressure chamber 23 and a rear space 24 a.
  • the hydraulic piston 22 is seated on a piston rod 25 which extends on the side facing away from the end plate 21 in the direction of the pressing tool 3.
  • a hat-shaped sealing element 26 is inserted, which rests on the inside of the piston rod 25 and thus seals the rear space 24.
  • the sealing element 26 also serves to support a piston spring 25 surrounding the coil spring 27, which is supported at the other end on the side remote from the pressure chamber 23 of the hydraulic piston 22.
  • the coil spring 27 is formed as a compression spring and consequently endeavors to move the hydraulic piston 22 in the direction of the end plate 21.
  • the hydraulic piston 22 remote from the end of the Kolbentsange 25 is rigidly connected outside of the rear space 24 with a spreader 28.
  • the spreader 28 has a bearing body 29, are mounted on the two spreader rollers 30, 31 transversely to the axis of the pressing device 1 side by side and freely rotatable in mutual contact.
  • a holder 32 Attached to the rear space-side end of the hydraulic cylinder 20 is a holder 32 which forms two coupling tabs 33, 34, which extending in the axial direction of the pressing device 1.
  • the coupling tabs 33, 34 have such a distance from each other that the spreader 28 can move between them.
  • coupling bores are provided on one side, which extend transversely to the longitudinal axis of the pressing device 1 and are aligned. In the area of these coupling bores and between the coupling tabs 33, 34 in a manner known per se (cf., for example FIG. 1 of the EP 1 157 786 A2 or FIG. 1 of the DE 20 2004 000 215 U1 ) two mutually parallel pressing tool tabs, of which in FIG.
  • Both press tool tabs 35 also have coupling holes that are aligned with each other and have the same diameter as the coupling holes in the coupling tabs 33, 34.
  • the connection between the coupling tabs 33, 34 and thus the drive unit 2 is made by a coupling pin 36 through passed through all four coupling holes and locked for the purpose of its positional fixation. In this way, the pressing tool 3 is pivotally connected to the drive unit 2.
  • the press tool flaps 35 are of identical construction and are arranged congruently and at a distance. They are connected to each other via two hinge pins 37, 38. In the intermediate space between the press tool tabs 35, mirror-shaped press jaw levers 39, 40 are mounted pivotably on the hinge pins 37, 38.
  • the pressing jaw levers 39, 40 form semicircular pressing jaws 41, 42 at their outer ends, which in the illustrated, closed state of the pressing tool 3 enclose a pressing space 43.
  • a compression spring 44 ensures that the pressing jaw levers 39, 40 are in the illustrated closed final pressing position taking.
  • the pressing jaw levers 39, 40 form drive surfaces 45, 46, which interact with the cylindrical surfaces of the spreading rollers 30, 31 during the pressing process.
  • the hydraulic pump 7, i. their limited by the pump piston 12 pressure chamber has not shown here hydraulic channels on the one hand connection to the hydraulic reservoir 14 and the other to the pressure chamber 23 in the piston-cylinder unit 19.
  • a check valve in the hydraulic line to the hydraulic reservoir 14 ensures that the pump piston 12th Upon movement in one direction, hydraulic oil sucks from the hydraulic reservoir 14 and, when moved in the other direction, conveys the sucked-in hydraulic oil into the pressure chamber 23.
  • the hydraulic piston 22 and thus also the piston rod 25 and the spreader 28 connected thereto are moved in the direction of the pressing tool 3.
  • a pressure relief valve 47 is formed in the form of a needle valve.
  • the hydraulic piston 22 has a pressure opening 23 open valve opening 48, which serves as a valve seat for a valve body 49 on the inside. This is loaded in the direction of the valve opening 48 by means of a pressure acting on the rear side of the valve body 49 compression spring 50.
  • the compression spring 50 is designed so that it allows a lifting of the valve body 49 only at a certain cut-off pressure in the Druchraum 23.
  • the valve body 49 defines a valve chamber 51, which has a connection to the rear space 24 via a hydraulic channel, not shown here. This in turn is connected via a hydraulic channel, also not shown, with the hydraulic reservoir 14. All above-described hydraulic channels form a total of a hydraulic system.
  • an emergency valve 52 which is also designed as a needle valve. It has a connecting channel 53 direct connection to the pressure chamber 23.
  • the connecting channel 53 narrows into a valve seat insert 54, which forms a valve seat on the inside, on which a valve needle 55 sealingly abuts.
  • the valve needle 55 is loaded with a compression spring 56.
  • This compression spring 56 is designed so that the valve needle 55 only lifts off from the valve seat insert 54 and thus the emergency valve 52 opens when the pressure in the pressure chamber 23 has reached a value which is at least equal to the cut-off, at which the pressure relief valve 47 at normal function opens, but can also lie about it.
  • the valve space of the emergency valve 52 has a connection, not shown here, to the hydraulic reservoir 14, so that the hydraulic fluid in the pressure chamber 23 can flow into the hydraulic reservoir 14 when the emergency valve 50 is opened.
  • a manual override device 57 is provided, with the aid of which it is possible to effect an opening of the emergency valve 52 by external action.
  • the manual actuation device 57 has an actuation tappet 58, which is displaceably guided transversely to the axial extension of the valve needle 55 and ends near the tube 13 within the hydraulic reservoir 14.
  • actuation tappet 58 is displaceably guided transversely to the axial extension of the valve needle 55 and ends near the tube 13 within the hydraulic reservoir 14.
  • a transverse pin 60 passing through the actuating tappet 58 prevents rotation of the actuating tappet 58 and forms a stop for the starting position.
  • the output shaft 5 carries a speed sensor 63, over the circumference of which magnets 64 are distributed at equal intervals.
  • the rotational speed sensor 63 is rotationally fixed, a rotational speed sensor 65 is arranged, which is capable of detecting the magnetic fields emanating from the magnet 64 and emits corresponding signals to a control device not shown here.
  • the signals are counted there, the speed of the drive motor 4 being determined from the number determined.
  • the control device serves to control the course of the press via the drive motor, as is fundamentally understood from US Pat EP 0 860 220 is known.
  • the control device additionally carries out a plausibility check at the end of a pressing operation in order to determine whether a pressing operation has been carried out successfully.
  • a measured after opening the pressure relief valve 47 actual load speed of the drive motor 4 is in a predetermined target speed range.
  • the upper limit of the target speed range determines the speed that must be fallen below to ensure that a predetermined pressing force has been reached.
  • the lower limit for the allowable target load speed range is defined in order to detect overshoots of the permissible pressing force.
  • the control device detects the idling speed before the beginning of a compression and predetermines the desired load speed range as a function of the measured idling speed. If the determined idle speed is low, so will the load speed when opening the pressure relief valve will be lower, and in the reverse manner, the idle speed is high, so the load speed will be higher. Accordingly, the target load speed range is predetermined as a function of the idle speed measured before the pressing process. This can be determined empirically, for example, and stored in the control device.
  • the pressing device 1 is attached to the press fitting after previously compressed the two pressing jaw lever 39, 40 by hand to the spreader 28 adjacent ends against the action of the compression spring 44 and thus the pressing jaws 44 are removed from each other so that the end a mouth-like opening results.
  • the pressing tool 3 can then be applied radially to the intended location of the press fitting, wherein the pressing jaws 41, 41 initially come to rest on the press fitting and accordingly the drive surfaces 45, 46 are approximated to each other.
  • the electric motor 4 is set in motion via a switch not shown here.
  • the idling speed is first detected, and depending on it defines a target load speed range in which the rotational speed of the electric motor 4 at the end of a successfully completed pressing operation must lie.
  • the hydraulic pump 7 sucks hydraulic fluid from the hydraulic reservoir This leads to a translational movement of the hydraulic piston 22 and the piston rod 25 of the spreading device 28 in the direction of the pressing tool 3.
  • the lateral surfaces of the spreading rollers 30, 31 on the drive surfaces 45, 46 of the pressing jaw lever 39th , 40 to the plant and spread them apart gradually.
  • the pressure in the pressure chamber 23 still increases until the predetermined cut-off pressure is reached at which the pressure relief valve 47 opens by lifting the valve body 49 of the valve port 48.
  • the initially limited to the cross-sectional valve opening 48 pressure effect now detected abruptly the entire surface of the much larger valve body 49.
  • the hydraulic fluid can now flow into the rear chamber 24 and from there into the hydraulic reservoir 14.
  • the control device detects the rotational speed of the electric motor 4 when opening the pressure relief valve. If the detected speed is within the predetermined target load speed range, the operator becomes indicated by the signaling device that the pressing process was completed successfully.
  • the operator turns off the electric motor 4, so that the hydraulic circulation is interrupted.
  • an automatic shutdown of the electric motor 4 can take place.
  • the rotational speed of the electric motor 4 increases steeply after the opening of the pressure relief valve 47. This speed increase can be used by the control device as a criterion to turn off the electric motor 4.
  • the coil spring 27 then pushes the hydraulic piston 22 back towards the end plate 21. In this case, a pressure is generated in the pressure chamber 23, which is sufficient to keep the pressure relief valve 47 open during the entire return movement of the hydraulic piston 22 until the hydraulic piston 22 has reached the starting position shown in the figures again. Then the pressure relief valve closes.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Control Of Presses (AREA)
EP10155953A 2009-03-10 2010-03-09 Dispositif d'entrainement guidé manuellement pour un appareil de pressage ainsi que procédé de commande d'un dispositif d'entraînement guidé manuellement pour un appareil de pressage Active EP2228177B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10155953T PL2228177T3 (pl) 2009-03-10 2010-03-09 Ręczny mechanizm napędowy do prasy oraz sposób sterowania ręcznym mechanizmem napędowym do prasy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202009003196U DE202009003196U1 (de) 2009-03-10 2009-03-10 Handführbare Antriebseinrichtung für ein Pressgerät

Publications (2)

Publication Number Publication Date
EP2228177A1 true EP2228177A1 (fr) 2010-09-15
EP2228177B1 EP2228177B1 (fr) 2011-05-11

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EP10155953A Active EP2228177B1 (fr) 2009-03-10 2010-03-09 Dispositif d'entrainement guidé manuellement pour un appareil de pressage ainsi que procédé de commande d'un dispositif d'entraînement guidé manuellement pour un appareil de pressage

Country Status (5)

Country Link
EP (1) EP2228177B1 (fr)
AT (1) ATE508844T1 (fr)
DE (1) DE202009003196U1 (fr)
ES (1) ES2365071T3 (fr)
PL (1) PL2228177T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104440762A (zh) * 2014-10-29 2015-03-25 北京北机机电工业有限责任公司 一种用于装配***片的工具
CN105171698A (zh) * 2015-07-28 2015-12-23 艾默生管道工具(上海)有限公司 液压工具
DE102018000088A1 (de) 2018-01-09 2019-07-11 Senvion Gmbh Vefahren zum Betreiben eines Windkraftwerks, insbesondere Wartungssteuerung

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009015515U1 (de) 2009-11-17 2011-04-07 Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kommanditgesellschaft Handgeführtes Pressgerät
DE102015108833B3 (de) * 2015-06-03 2016-10-20 Herwig Bohrtechnik Schmalkalden Gmbh Rettungsgerät zum Trennen von Strukturen sowie Verfahren zur Steuerung eines Rettungsgeräts
ITUA20161807A1 (it) 2016-03-18 2017-09-18 Cembre Spa Utensile oleodinamico di compressione o taglio

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5125324A (en) 1988-02-10 1992-06-30 Daia Industry Co. Ltd. Portable hydraulically operated device incorporating automatic drain valve
EP0860220A2 (fr) 1997-02-21 1998-08-26 NOVOPRESS GMBH PRESSEN UND PRESSWERKZEUGE & CO. KG. Presse
EP1157786A2 (fr) 2000-05-25 2001-11-28 Von Arx Ag Outil de sertissage pour sertir un élément déconnection
EP1230998A2 (fr) 2001-02-12 2002-08-14 Rothenberger Werkzeuge Aktiengesellschaft Méthode de contrôle automatique d'un outil électro-hydraulique et arrangement approprié
DE20303877U1 (de) 2003-03-10 2003-05-08 Novopress Gmbh Handgeführtes Preßgerät
EP1337016A2 (fr) * 2002-02-19 2003-08-20 Fci Outil hydraulique alimenté par batterie
DE202004000215U1 (de) 2004-01-08 2004-04-01 Novopress Gmbh Pressen Und Presswerkzeuge & Co Kg Handgeführtes Preßgerät

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3719442A1 (de) * 1987-06-11 1988-12-22 Pfisterer Elektrotech Karl Tragbare presse zur herstellung von pressverbindungen

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5125324A (en) 1988-02-10 1992-06-30 Daia Industry Co. Ltd. Portable hydraulically operated device incorporating automatic drain valve
EP0860220A2 (fr) 1997-02-21 1998-08-26 NOVOPRESS GMBH PRESSEN UND PRESSWERKZEUGE & CO. KG. Presse
EP0860220B1 (fr) 1997-02-21 2003-02-05 NOVOPRESS GMBH PRESSEN UND PRESSWERKZEUGE & CO. KG. Presse
EP1157786A2 (fr) 2000-05-25 2001-11-28 Von Arx Ag Outil de sertissage pour sertir un élément déconnection
EP1230998A2 (fr) 2001-02-12 2002-08-14 Rothenberger Werkzeuge Aktiengesellschaft Méthode de contrôle automatique d'un outil électro-hydraulique et arrangement approprié
EP1337016A2 (fr) * 2002-02-19 2003-08-20 Fci Outil hydraulique alimenté par batterie
DE20303877U1 (de) 2003-03-10 2003-05-08 Novopress Gmbh Handgeführtes Preßgerät
DE202004000215U1 (de) 2004-01-08 2004-04-01 Novopress Gmbh Pressen Und Presswerkzeuge & Co Kg Handgeführtes Preßgerät

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104440762A (zh) * 2014-10-29 2015-03-25 北京北机机电工业有限责任公司 一种用于装配***片的工具
CN104440762B (zh) * 2014-10-29 2016-05-04 北京北机机电工业有限责任公司 一种用于装配***片的工具
CN105171698A (zh) * 2015-07-28 2015-12-23 艾默生管道工具(上海)有限公司 液压工具
CN105171698B (zh) * 2015-07-28 2018-05-22 艾默生管道工具(上海)有限公司 液压工具
DE102018000088A1 (de) 2018-01-09 2019-07-11 Senvion Gmbh Vefahren zum Betreiben eines Windkraftwerks, insbesondere Wartungssteuerung

Also Published As

Publication number Publication date
EP2228177B1 (fr) 2011-05-11
DE202009003196U1 (de) 2010-04-29
ATE508844T1 (de) 2011-05-15
PL2228177T3 (pl) 2011-10-31
ES2365071T3 (es) 2011-09-21

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