EP2025475B1 - Electro-hydraulic pressing device for joining work pieces and method for executing a technological diagnosis of the pressing device - Google Patents
Electro-hydraulic pressing device for joining work pieces and method for executing a technological diagnosis of the pressing device Download PDFInfo
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- EP2025475B1 EP2025475B1 EP20080013403 EP08013403A EP2025475B1 EP 2025475 B1 EP2025475 B1 EP 2025475B1 EP 20080013403 EP20080013403 EP 20080013403 EP 08013403 A EP08013403 A EP 08013403A EP 2025475 B1 EP2025475 B1 EP 2025475B1
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- pressing device
- pressing
- information
- computer
- monitoring unit
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- 238000003825 pressing Methods 0.000 title claims description 99
- 238000003745 diagnosis Methods 0.000 title claims description 12
- 238000000034 method Methods 0.000 title claims description 10
- 238000012544 monitoring process Methods 0.000 claims description 22
- 230000003068 static effect Effects 0.000 claims description 3
- 238000004146 energy storage Methods 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 238000011990 functional testing Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009530 blood pressure measurement Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000001755 vocal effect Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000002405 diagnostic procedure Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000007849 functional defect Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
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Classifications
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- 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 an electro-hydraulic pressing device according to the preamble of patent claim 1, see for example the document EP 0 463 530 A2 , Furthermore, the invention relates to a method for carrying out a technical diagnosis of the pressing device according to the preamble of patent claim 9.
- Such a pressing device is from the DE 199 46 380 A1 known.
- This document describes a pressing device for connecting workpieces, in particular press fittings with a tube, which has a replaceable pressing tool, which comprises at least two pressing jaws, and a jaw drive for moving the pressing jaws from an open position to a final pressing position and an electronic control and monitoring device ,
- an electrical energy store is housed, which feeds at least one functional part present in the pressing tool with information transmission and / or control or monitoring function.
- These functional parts are in the DE 199 46 380 A1 described as known monitoring means, wherein the pressing device itself a tableau with optical display means is provided, can be signaled by the certain monitored functions. In this case, light emitting diodes in various colors are often used as the display means.
- various known pressing devices are also equipped with sounders.
- the known pressing tool has, for example, an electronic safety unit which comprises at least one monitoring element which checks the drive and determines whether a pressing pressure value has been reached within a predefined tolerance range. If the monitoring element determines that the pressing pressure has not reached the required tolerance range, this is indicated optically and / or acoustically. Similarly, malfunction and / or the readiness of the press tool can be displayed. In some cases The safety unit locks the drive. In addition, in a preferred manner, the display should be such that it can be deduced the nature of the error. This is to be realized for example by the fact that the optical display element is formed by differently colored LEDs, such as a red and a green, which light up together or alternatively, constantly or flashing at different states.
- the invention has for its object to provide an electro-hydraulic pressing device of the type described above, in which a simplified technical diagnosis is possible.
- the invention advantageously makes it possible to carry out a more comprehensive and detailed diagnosis at the place of use (for example a construction site), in particular for the purpose of determining and identifying functional defects of the pressing device.
- operating information per operating second of the drive of the pressing device is to be understood according to the invention as measuring, for example, the power consumed by an electric motor of the pressing device by means of a current measurement and a voltage measurement or also by means of only one current measurement or one voltage measurement (the operating current of the electric motor) and at least for every operating second, a measured value for the power consumption of the electric motor is stored in the electronic information memory.
- the operating information stored in the information memory it is possible, in particular after transmission of this operating information to the computer, that the operation of the pressing device is analyzed, for example by means of a graphic analysis of the course of the power consumption of the electric motor during a pressing stroke.
- the power absorbed by the electric motor of the pressing device and / or the pressure measurement in the hydraulic system can also be provided as operating information that the data of a force measurement in the area of the pressing tool be used as operating information, for example a force measurement in the area of the drive for moving the pressing tool.
- additional information per stroke of the pressing device or be permanently stored in the information store per operating second of the pressing device or the drive.
- This additional permanently stored information relates to information representing the temperature of the pressing device (or the temperature of a part of the pressing device, in particular a circuit of the electronic control and monitoring unit) and / or information representing the date or time of operation of the drive.
- a temperature sensor is provided in particular in the electronic control and monitoring unit.
- a clock or a time measuring device is provided in particular in the electronic control and monitoring unit.
- the invention it is therefore possible based on the information stored permanently in the information store to analyze the operation of the pressing device in retrospect and also to make forecasts on the future use of the pressing device.
- a gradually occurring wear or a gradually occurring contamination for example, on the electric motor or also on the pressing tool or be found on the hydraulic system, so that, for example, forecasts can be made about the number of presumably still successfully performed pressing operations, which in practice can be very important, because such a prediction, for example, the question can be decided whether a particular construction site (with an approximately predictable number of required compressions) is still feasible or not required in between maintenance / repair or not.
- the interface for connecting the computer is a universal serial bus (USB), in particular a USB socket for connecting a laptop via a USB cable.
- USB universal serial Bus
- the Universal Serial Bus (USB) is a serial bus system for connecting a computer to external devices.
- a USB-equipped pressing device can be connected to the computer even during operation, that is, for example during a test run, it being possible to determine the characteristics, such as, for example, a test run.
- B. static properties or a specific operating condition, the electronic control and monitoring unit, in particular the electronic information storage of the same, to automatically recognize, with high data transfer rates are possible.
- a wireless interface is provided for the connection between the pressing device and the computer.
- wireless interfaces are an infrared interface or a radio interface such as Bluetooth, WLAN or the like.
- an arrangement for the technical diagnosis of a pressing device comprising the pressing device with the features according to the invention, a computer and a connection between the two (in the case of a wired communication interface, in particular a connection cable to the connection the pressing device to the computer) is attributed inventive significance.
- the diagnostic method is used.
- the information stored in the electronic information memory of the control and monitoring unit can be transmitted to the computer and subjected to data processing.
- a function check carried out under commissioning of the pressing device according to the invention and, for example, the execution of a Leerhubs with an inserted pressing tool, preferably taking a recording of a current-voltage characteristic.
- the recorded current-voltage characteristic can be compared in the computer with there laid down, characteristic of certain functional and fault conditions current-voltage characteristics and, where appropriate, with the addition of information transferred from the electronic information storage of the control and monitoring unit in the computer information, a diagnostic image will be created.
- Fig. 1 shows first the pressing device according to the invention for connecting workpieces, in particular an electro-hydraulic pressing device.
- the pressing device has in the illustrated embodiment, a substantially pistol-shaped housing 1 with a handle 2 and a barrel 3, wherein the barrel 3 ends in a fork-shaped receptacle 4.
- a pressing tool not shown
- the fork-shaped receptacle 4 has for this purpose on both sides each have a bore 5. Through these holes is as a fastener, a connecting pin 6 can be inserted, which serves to fix the pressing tool, which is also referred to as a clamping pliers.
- a known detection means may be provided.
- an electro-hydraulic drive is housed in the housing 1 of the pressing device.
- the pressing device according to the invention has an electronic control and monitoring unit, which can also be located in the housing 1 and an electronic information storage, such as a chip comprises.
- the pressing device can be designed as a power supply or have an autonomous energy storage unit, such as an accumulator.
- the electronic control and monitoring unit has an interface for connecting a computer.
- This is also housed in the housing 1.
- the interface 7 for connecting the computer may advantageously be a universal serial bus (USB), in particular a USB socket 7 for connecting a laptop 8 via a USB cable 9.
- USB universal serial bus
- the interface can be advantageously covered by a insertable into the socket opening of the housing 1 blind plug.
- the illustrated inventive arrangement for the technical diagnosis of a pressing device which includes the pressing device itself, the computer (laptop 9) and the connection cable (USB cable 9) for connecting the pressing device to the computer.
- the electronic control and monitoring unit of the pressing device in addition to the aforementioned device for position detection of the fastener 6 a Hubierecrofter and / or an operating hours counter, a speed measuring device, measuring devices for the current and the voltage, in particular in the operating state of the drive, a pressure measuring device for a hydraulic fluid and a temperature measuring device.
- this information is retrievable in the computer 8 and can be edited there with a suitable program.
- encrypted error codes may be decoded and displayed in verbal or graphical form, including presentation and / or marking of the device component in question or defective on the screen of the computer 8. Also based on instructions for further necessary procedure can be issued to the operator.
- a dynamic function check of the pressing device under commissioning of the pressing device especially when carrying out a Leerhubs with a press tool used, done.
- a diagnostic image After a recorded current-voltage or power characteristic in the computer with there laid down characteristic of certain functional and fault conditions current-voltage or performance characteristics compared and therefrom, possibly using the from the electronic information storage of the control and Monitoring unit in the computer transmitted information, a diagnostic image has been created, this can be displayed in verbal and / or graphical form, possibly together with instructions for the operator of the pressing device on the screen of the computer 8 to display.
- the invention is not limited to the illustrated embodiment, but also includes all the same in the context of the invention embodiments, such as interfaces based on older interface designs, such as serial or parallel ports.
- the person skilled in the art may additionally take additional appropriate additional or alternative technical measures, for example by using technical parameters for carrying out the diagnosis, such as supporting the diagnosis on a characteristic of the oil pressure rise or the time course of the oil pressure or a spindle speed, etc. which will leave the scope of the invention.
- the invention is not limited to the combinations of indicia combinations defined in claim 1 and the other independent claims, but may also be defined by any other combination of features of all individually disclosed features.
- the claims are to be understood only as a first formulation attempt for an invention.
Description
Die Erfindung betrifft ein elektrohydraulisches Pressgerät gemäß dem Oberbegriff des Patentanspruchs 1, siehe z.B. das Dokument
Ein derartiges Pressgerät ist aus der
Das bekannte Presswerkzeug weist beispielsweise eine elektronische Sicherheitseinheit auf, welche mindestens ein Überwachungselement umfasst, das den Antrieb überprüft und feststellt, ob ein Pressdruckwert innerhalb eines vordefinierten Toleranzbereiches erreicht worden ist. Stellt das Überwachungselement fest, dass der Pressdruck nicht den geforderten Toleranzbereich erreicht hat, so wird dies optisch und/oder akustisch angezeigt. Ähnlich können auch Fehlfunktionen und/oder die Einsatzbereitschaft des Presswerkzeuges angezeigt werden. In einigen Fällen sperrt die Sicherheitseinheit den Antrieb. Außerdem soll in bevorzugter Weise die Anzeige derart erfolgen, dass auf die Art des Fehlers rückgeschlossen werden kann. Dies soll beispielsweise dadurch realisiert werden, dass das optische Anzeigeelement durch verschiedenfarbige Leuchtdioden, wie eine rote und eine grüne, gebildet ist, die bei verschiedenen Zuständen gemeinsam oder alternativ, konstant oder blinkend aufleuchten.The known pressing tool has, for example, an electronic safety unit which comprises at least one monitoring element which checks the drive and determines whether a pressing pressure value has been reached within a predefined tolerance range. If the monitoring element determines that the pressing pressure has not reached the required tolerance range, this is indicated optically and / or acoustically. Similarly, malfunction and / or the readiness of the press tool can be displayed. In some cases The safety unit locks the drive. In addition, in a preferred manner, the display should be such that it can be deduced the nature of the error. This is to be realized for example by the fact that the optical display element is formed by differently colored LEDs, such as a red and a green, which light up together or alternatively, constantly or flashing at different states.
Die Ausstattung mit einer solchen Sicherheitseinrichtung führt in einigen Fällen nachteiligerweise dazu, dass das Gerät durch die Abschaltung des Antriebs nicht mehr betriebsbereit ist und der Bedienperson durch die blinkenden Lämpchen angezeigt wird, dass sie ein Servicezentrum aufzusuchen hat. Hier wird bei einer Überprüfung jedoch oft festgestellt, dass die Sperrung des Antriebs nur auf Ursachen, beispielsweise auf Verschmutzungen an der Rückzugsfeder, zurückzuführen ist, die auch am Einsatzort des Geräts hätten behoben werden können. Der damit verbundene Arbeitsausfall, der umso größer ist, je weiter ein Einsatzort des Pressgerätes von einem Servicezentrum entfernt ist, stellt in einem solchen Fall einen vermeidbaren Nachteil dar. Hätte jedoch die Bedienperson das Pressgerät nicht zum Servicezentrum gebracht und versucht, die Betriebsbereitschaft selbst wieder herzustellen, so könnte ein solcher Eingriff zum Verlust der Garantie für das Gerät führen.The provision of such a safety device in some cases disadvantageously means that the device is no longer ready for operation by the shutdown of the drive and the operator is indicated by the flashing lights that she has to visit a service center. Here, however, a check is often found that the locking of the drive only due to causes, such as soiling of the return spring, which could also be fixed at the site of the device. The associated loss of work, which is the greater, the further a place of use of the pressing device is removed from a service center, represents an avoidable disadvantage in such a case. However, the operator would not have brought the pressing device to the service center and tried to restore the operational readiness itself For example, such interference could void the warranty on the device.
Der Erfindung liegt die Aufgabe zugrunde, ein elektrohydraulisches Pressgerät der eingangs beschriebenen Art zu schaffen, an dem eine vereinfachte technische Diagnose möglich ist.The invention has for its object to provide an electro-hydraulic pressing device of the type described above, in which a simplified technical diagnosis is possible.
Diese Aufgabe wird erfindungsgemäß durch ein elektrohydraulisches Pressgerät mit den Merkmalen des Anspruches 1 gelöst.This object is achieved by an electro-hydraulic pressing device with the features of claim 1.
Durch die Erfindung wird es vorteilhafterweise möglich, am Einsatzort (beispielsweise einer Baustelle) eine umfassendere und detailliertere Diagnose, insbesondere zur Feststellung und Identifizierung von Funktionsmängeln des Pressgerätes vorzunehmen. Diesbezüglich relevante technische Daten, die im elektronischen Informationsspeicher, wie in einem Chip, der elektronischen Steuer- und Überwachungseinheit niedergelegt sind, können so nach der Übertragung auf einen Computer mit einer Diagnosesoftware ausgewertet werden.The invention advantageously makes it possible to carry out a more comprehensive and detailed diagnosis at the place of use (for example a construction site), in particular for the purpose of determining and identifying functional defects of the pressing device. In this regard, relevant technical data in the electronic information storage, such as in a chip, the electronic control and Can be evaluated after the transfer to a computer with a diagnostic software.
Es ist erfindungsgemäß vorgesehen, wenn ein bestimmter Satz an Informationen dauerhaft im elektronischen Informationsspeicher des Pressgeräts (insbesondere in dem mit der elektronischen Steuer- und Überwachungseinheit verbundenen oder in diese integrierten elektronischen Informationsspeicher) gespeichert werden. Hierdurch ist es erfindungsgemäß möglich, dass beispielsweise jeder einzelne Betätigungsvorgang des Pressgeräts nachträglich analysiert werden kann. Es ist erfindungsgemäß vorgesehen, dass eine die Hubzahl des Pressgerätes repräsentierende Information und wenigstens eine Betriebsinformation pro Betriebssekunde des Antriebs dauerhaft im elektronischen Informationsspeicher abgespeichert werden. Unter einer Betriebsinformation pro Betriebssekunde des Antriebs des Pressgeräts soll hierbei erfindungsgemäß verstanden werden, dass beispielsweise die von einem Elektromotor des Pressgeräts aufgenommene Leistung anhand einer Strommessung und einer Spannungsmessung oder auch anhand lediglich einer Strommessung oder einer Spannungsmessung (des Betriebsstroms des Elektromotors) gemessen und wenigstens für jede Betriebssekunde ein Messwert zur Leistungsaufnahme des Elektromotors im elektronischen Informationsspeicher abgespeichert wird. Anhand der im Informationsspeicher abgespeicherten Betriebsinformationen ist es - insbesondere nach einer Übertragung dieser Betriebsinformationen auf den Computer - möglich, dass der Betrieb des Pressgeräts analysiert wird, beispielsweise mittels einer graphischen Analyse des Verlaufs der Leistungsaufnahme des Elektromotors während eines Presshubs.It is provided according to the invention when a specific set of information is stored permanently in the electronic information memory of the pressing device (in particular in the electronic information storage device connected to or integrated in the electronic control and monitoring unit). This makes it possible according to the invention that, for example, each individual actuation process of the pressing device can be subsequently analyzed. It is provided according to the invention that an information representing the number of strokes of the pressing device and at least one operating information per operating second of the drive are stored permanently in the electronic information memory. In this case, operating information per operating second of the drive of the pressing device is to be understood according to the invention as measuring, for example, the power consumed by an electric motor of the pressing device by means of a current measurement and a voltage measurement or also by means of only one current measurement or one voltage measurement (the operating current of the electric motor) and at least for every operating second, a measured value for the power consumption of the electric motor is stored in the electronic information memory. On the basis of the operating information stored in the information memory, it is possible, in particular after transmission of this operating information to the computer, that the operation of the pressing device is analyzed, for example by means of a graphic analysis of the course of the power consumption of the electric motor during a pressing stroke.
Besonders vorteilhaft ist es, wenn pro Umdrehung (oder pro zwei Umdrehungen oder pro drei Umdrehungen oder pro vier Umdrehungen oder pro fünf Umdrehungen oder pro sechs Umdrehungen) des Elektromotors eine Betriebsinformation dauerhaft im Informationsspeicher dauerhaft abgespeichert wird.It is particularly advantageous if per revolution (or per two revolutions or per three revolutions or per four revolutions or per five revolutions or per six revolutions) of the electric motor an operating information is permanently stored permanently in the information memory.
Alternativ oder kumulativ zur Verwendung der vom Elektromotor des Pressgeräts aufgenommenen Leistung als Betriebsinformation kann es auch vorgesehen sein, dass - für den Fall eines elektrohydraulischen Pressgeräts - die Daten einer Druckmessung im hydraulischen System (insbesondere im Arbeitszylinder) als Betriebsinformation herangezogen werden.Alternatively or cumulatively to the use of the power absorbed by the electric motor of the pressing device as operating information, it may also be provided that - in the case of an electro-hydraulic pressing device - the data of a pressure measurement in the hydraulic system (in particular in the working cylinder) Operating information are used.
Ferner kann es alternativ oder kumulativ zur Verwendung der vom Elektromotor des Pressgeräts aufgenommenen Leistung und/oder der Druckmessung im hydraulischen System als Betriebsinformation auch vorgesehen sein, dass die Daten einer Kraftmessung im Bereich des Presswerkzeugs als Betriebsinformation herangezogen werden, beispielsweise eine Kraftmessung im Bereich des Antriebs zum Bewegen des Presswerkzeuges.Furthermore, alternatively or cumulatively to the use of the power absorbed by the electric motor of the pressing device and / or the pressure measurement in the hydraulic system, it can also be provided as operating information that the data of a force measurement in the area of the pressing tool be used as operating information, for example a force measurement in the area of the drive for moving the pressing tool.
Zusätzlich zu dem erfindungsgemäß im Informationsspeicher dauerhaft abgespeicherten Satz an Informationen zum Betrieb des Pressgeräts (nämlich umfassend wenigstens eine die Hubzahl des Pressgerätes repräsentierende Information und wenigstens eine Betriebsinformation pro Betriebssekunde des Antriebs) kann es erfindungsgemäß auch vorgesehen sein, dass zusätzliche Informationen pro Arbeitshub des Pressgeräts oder auch pro Betriebssekunde des Pressgeräts bzw. des Antriebs dauerhaft im Informationsspeicher abgespeichert werden. Diese zusätzlichen dauerhaft abgespeicherten Informationen betreffen eine die Temperatur des Pressgerätes (oder die Temperatur eines Teils des Pressgeräts, insbesondere eines Schaltkreises der elektronischen Steuer- und Überwachungseinheit) repräsentierende Information und/oder eine das Datum oder den Zeitpunkt des Betriebs des Antriebs repräsentierende Information. Zur Bereitstellung der erstgenannten zusätzlichen Information (betreffend die Temperatur) ist insbesondere in der elektronischen Steuer- und Überwachungseinheit ein Temperatursensor vorgesehen. Zur Bereitstellung der letztgenannten zusätzlichen Information (betreffend das Datum bzw. die Zeit) ist insbesondere in der elektronischen Steuer- und Überwachungseinheit eine Uhr bzw. eine Zeitmesseinrichtung vorgesehen.In addition to the invention according to the invention stored permanently in the information store set of information on the operation of the pressing device (namely comprising at least one stroke number of the pressing device representing information and at least one operating information per operating second of the drive), it may also be provided according to the invention that additional information per stroke of the pressing device or be permanently stored in the information store per operating second of the pressing device or the drive. This additional permanently stored information relates to information representing the temperature of the pressing device (or the temperature of a part of the pressing device, in particular a circuit of the electronic control and monitoring unit) and / or information representing the date or time of operation of the drive. To provide the first-mentioned additional information (concerning the temperature), a temperature sensor is provided in particular in the electronic control and monitoring unit. To provide the latter additional information (concerning the date or time), a clock or a time measuring device is provided in particular in the electronic control and monitoring unit.
Erfindungsgemäß ist es daher anhand der dauerhaft im Informationsspeicher abgespeicherten Informationen möglich, den Betrieb des Pressgeräts im nachhinein zu analysieren und auch Prognosen über den zukünftigen Einsatz des Pressgeräts zu machen. Insbesondere kann mittels der aufgenommenen, abgespeicherten und analysierbaren Daten ein allmählich auftretender Verschleiß bzw. eine allmählich auftretende Verschmutzung etwa am Elektromotor oder auch am Presswerkzeug oder auch am hydraulischen System festgestellt werden, so dass beispielsweise Prognosen über die Anzahl der voraussichtlich noch erfolgreich durchführbaren Pressvorgänge gemacht werden kann, was in der Praxis sehr wichtig sein kann, weil mittels einer solchen Prognose beispielsweise die Frage entschieden werden kann, ob eine bestimmte Baustelle (mit einer ungefähr voraussehbaren Anzahl von erforderlichen Verpressungen) noch ohne zwischendurch erforderliche Wartung/Reparatur durchführbar ist oder nicht.According to the invention, it is therefore possible based on the information stored permanently in the information store to analyze the operation of the pressing device in retrospect and also to make forecasts on the future use of the pressing device. In particular, by means of the recorded, stored and analyzable data, a gradually occurring wear or a gradually occurring contamination, for example, on the electric motor or also on the pressing tool or be found on the hydraulic system, so that, for example, forecasts can be made about the number of presumably still successfully performed pressing operations, which in practice can be very important, because such a prediction, for example, the question can be decided whether a particular construction site (with an approximately predictable number of required compressions) is still feasible or not required in between maintenance / repair or not.
Bei der Informationsübertragung zwischen dem Pressgerät und dem Computer ist es von Vorteil, wenn das Interface zum Anschluss des Computers ein Universal-Serial-Bus (USB), insbesondere eine USB-Steckbuchse zum Anschluss eines Laptops über ein USB-Kabel, ist. Der Universal Serial Bus (USB) ist ein serielles Bussystem zur Verbindung eines Computers mit externen Geräten. Ein mit USB aus-gestattetes Pressgerät kann sogar im laufenden Betrieb, also beispielsweise bei einem Testlauf, mit dem Computer verbunden sein, wobei es möglich ist, die Charakteristika, wie z. B. statische Eigenschaften oder einen bestimmten Betriebszustand, der elektronischen Steuer- und Überwachungseinheit, insbesondere des elektronischen Informationsspeichers derselben, automatisch zu erkennen, wobei hohe Datenübertragungsraten möglich sind. Im Computer steht dann zur Verarbeitung der Daten ein weitaus höherer Speicherplatz zur Verfügung als der, der in der elektronischen Steuer-und Überwachungseinheit technisch möglich ist bzw. unter dem Gesichtspunkt einer Minimierung des technischen Aufwands - und damit der Gerätekosten - angemessen erscheint. Alternativ oder kumulativ zur Verwendung einer drahtgebundenen Schnittstelle bzw. eines drahtgebundenen Interfaces wie die USB-Schnittstelle kann es erfidungsgemäß auch vorgesehen sein, dass eine drahtlose Schnittstelle für die Verbindung zwischen dem Pressgerät und dem Computer vorgesehen ist. Beispiele für solche drahtlose Schnittstellen sind eine Infrarot-Schnittstelle oder auch eine Funkschnittstelle wie etwa Bluetooth, WLAN oder dergleichen.When transmitting information between the pressing device and the computer, it is advantageous if the interface for connecting the computer is a universal serial bus (USB), in particular a USB socket for connecting a laptop via a USB cable. The Universal Serial Bus (USB) is a serial bus system for connecting a computer to external devices. A USB-equipped pressing device can be connected to the computer even during operation, that is, for example during a test run, it being possible to determine the characteristics, such as, for example, a test run. B. static properties or a specific operating condition, the electronic control and monitoring unit, in particular the electronic information storage of the same, to automatically recognize, with high data transfer rates are possible. In the computer is then available to process the data a much higher space available than that which is technically possible in the electronic control and monitoring unit or from the point of view of minimizing the technical effort - and thus the equipment costs - seems appropriate. Alternatively or in addition to the use of a wired interface or a wired interface such as the USB interface, it can also be provided according to the invention that a wireless interface is provided for the connection between the pressing device and the computer. Examples of such wireless interfaces are an infrared interface or a radio interface such as Bluetooth, WLAN or the like.
Auch einer Anordnung zur technischen Diagnose eines Pressgerätes, umfassend das Pressgerät mit den erfindungsgemäßen Merkmalen, einen Computer sowie eine Verbindung zwischen beiden (für den Fall einer drahtgebundenen Kommunikationsschnittstelle insbesondere ein Verbindungskabel zum Anschluss des Pressgerätes an den Computer) wird erfinderische Bedeutung beigemessen.Also, an arrangement for the technical diagnosis of a pressing device, comprising the pressing device with the features according to the invention, a computer and a connection between the two (in the case of a wired communication interface, in particular a connection cable to the connection the pressing device to the computer) is attributed inventive significance.
Gemäß dem erfindungsgemäßen Diagnoseverfahren wird diese Anordnung verwendet. Dabei können - wie erwähnt - die im elektronischen Informationsspeicher der Steuer- und Überwachungseinheit niedergelegten Informationen in den Computer übertragen und einer Datenverarbeitung unterzogen werden. Hierbei kann bedarfsweise auch eine Funktionsüberprüfung unter Inbetriebnahme des erfindungsgemäßen Pressgerätes und beispielsweise der Durchführung eines Leerhubs mit einem eingesetzten Presswerkzeug erfolgen, wobei bevorzugt eine Aufnahme einer Strom-Spannungs-Charakteristik erfolgt. Die aufgenommene Strom-Spannungs-Charakteristik kann im Computer mit dort niedergelegten, für bestimmte Funktions-und Fehlerzustände charakteristischen Strom-Spannungs-Charakteristiken verglichen und daraus, gegebenenfalls unter zusätzlicher Heranziehung der aus dem elektronischen Informationsspeicher der Steuer- und Überwachungseinheit in den Computer übertragenen Informationen, ein Diagnosebild erstellt werden.According to the diagnostic method according to the invention, this arrangement is used. In this case, as mentioned, the information stored in the electronic information memory of the control and monitoring unit can be transmitted to the computer and subjected to data processing. In this case, if necessary, a function check carried out under commissioning of the pressing device according to the invention and, for example, the execution of a Leerhubs with an inserted pressing tool, preferably taking a recording of a current-voltage characteristic. The recorded current-voltage characteristic can be compared in the computer with there laid down, characteristic of certain functional and fault conditions current-voltage characteristics and, where appropriate, with the addition of information transferred from the electronic information storage of the control and monitoring unit in the computer information, a diagnostic image will be created.
Weitere vorteilhafte Ausgestaltungsmerkmale der Erfindung sind in den Unteransprüchen sowie der folgenden Beschreibung enthalten.Further advantageous features of the invention are contained in the subclaims and the following description.
Anhand eines in der Zeichnung dargestellten, bevorzugten Ausführungsbeispiels soll die Erfindung nun genauer erläutert werden. Dabei zeigt
- Fig. 1
- eine perspektivische Ansicht einer erfindungsgemäßen. Diagnoseanordnung mit einem erfindungsgemäßen Pressgerät.
- Fig. 1
- a perspective view of an inventive. Diagnostic arrangement with a pressing device according to the invention.
Das erfindungsgemäße Pressgerät weist in der dargestellten Ausführung ein im Wesentlichen pistolenförmiges Gehäuse 1 mit einem Griff 2 und einem Lauf 3 auf, wobei der Lauf 3 in einer gabelförmigen Aufnahme 4 endet. In dieser gabelförmigen Aufnahme 4 kann ein nicht dargestelltes Presswerkzeug auswechselbar gehalten werden, welches zwei Pressbacken aufweist. Die gabelförmige Aufnahme 4 weist zu diesem Zweck auf beiden Seiten je eine Bohrung 5 auf. Durch diese Bohrungen ist als Befestigungselement ein Verbindungsbolzen 6 einschiebbar, der zur Fixierung des Presswerkzeuges dient, welches auch als Klemmzange bezeichnet wird. Zur Überwachung der Einnahme der vollständig eingeschobenen Lage des Verbindungsbolzens 6 kann eine an sich bekannte Detektierungseinrichtung vorgesehen sein. Zum Bewegen des Presswerkzeuges, insbesondere seiner Backen, ist im Gehäuse 1 des Pressgerätes ein elektrohydraulischer Antrieb untergebracht. Außerdem weist das erfindungsgemäße Pressgerät eine elektronische Steuer- und Überwachungseinheit auf, die sich ebenfalls im Gehäuse 1 befinden kann und die einen elektronischen Informationsspeicher, wie einen Chip, umfasst. Das Pressgerät kann als Netzgerät ausgebildet sein oder eine autonome Energiespeichereinheit, wie einen Akkumulator, aufweisen.The pressing device according to the invention has in the illustrated embodiment, a substantially pistol-shaped housing 1 with a handle 2 and a
Erfindungsgemäß ist nun vorgesehen, dass die elektronische Steuer- und Überwachungseinheit ein Interface zum Anschluss eines Computers aufweist. Dieses ist ebenfalls im Gehäuse 1 untergebracht. Bei dem Interface 7 zum Anschluss des Computers kann es sich dabei mit Vorteil um einen Universal-Serial-Bus (USB) handeln, insbesondere eine USB-Steckbuchse 7 zum Anschluss eines Laptops 8 über ein USB-Kabel 9. Wenn das Kabel 9 entfernt wird, kann das Interface vorteilhafterweise durch einen in die Buchsenöffnung des Gehäuses 1 einsetzbaren Blindstopfen abgedeckt werden.According to the invention, it is now provided that the electronic control and monitoring unit has an interface for connecting a computer. This is also housed in the housing 1. The interface 7 for connecting the computer may advantageously be a universal serial bus (USB), in particular a USB socket 7 for connecting a laptop 8 via a USB cable 9. When the cable 9 is removed , the interface can be advantageously covered by a insertable into the socket opening of the housing 1 blind plug.
Auf diese Weise wird die dargestellte endungsgemäße Anordnung zur technischen Diagnose eines Pressgerätes gebildet, die das Pressgerät selbst, den Computer (Laptop 9) sowie das Verbindungskabel (USB-Kabel 9) zum Anschluss des Pressgerätes an den Computer umfasst.In this way, the illustrated inventive arrangement for the technical diagnosis of a pressing device is formed, which includes the pressing device itself, the computer (laptop 9) and the connection cable (USB cable 9) for connecting the pressing device to the computer.
Die elektronische Steuer- und Überwachungseinheit des erfindungsgemäßen Pressgerätes kann neben der bereits erwähnten Einrichtung zur Lagedetektierung des Befestigungselements 6 einen Hubzahlzähler und/oder einen Betriebsstundenzähler, eine Drehzahlmesseinrichtung, Messeinrichtungen für den Strom und die Spannung, insbesondere im Betriebszustand des Antriebs, eine Druckmesseinrichtung für eine Hydraulikflüssigkeit und eine Temperaturmesseinrichtung aufweisen.The electronic control and monitoring unit of the pressing device according to the invention, in addition to the aforementioned device for position detection of the fastener 6 a Hubzahlzähler and / or an operating hours counter, a speed measuring device, measuring devices for the current and the voltage, in particular in the operating state of the drive, a pressure measuring device for a hydraulic fluid and a temperature measuring device.
Aus diesen Einrichtungen gewonnene Informationen zu den interessierenden technischen Charakteristika des erfindungsgemäßen Pressgerätes, wie z. B. zu den statischen Eigenschaften oder zu einem bestimmten Betriebs-- oder Fehlfunktionszustand können in digitalisierter Form im elektronischen Informationsspeicher der Steuer- und Überwachungseinheit niedergelegt werden.From these devices obtained information on the interesting technical characteristics of the pressing device according to the invention, such. B. to the static properties or to a specific operating or malfunction state can be stored in digitized form in the electronic information storage of the control and monitoring unit.
Für eine technische Diagnose des erfindungsgemäßen Pressgerätes sind diese Informationen in den Computer 8 abrufbar und können dort mit einem geeigneten Programm bearbeitet werden. So können verschlüsselte Fehlercodes decodiert und in verbaler Form oder grafischer Form - einschließlich einer Darstellung und/oder Markierung des in Frage stehenden oder defekten Geräteteiles auf dem Bildschirm des Computers 8 - zur Anzeige gebracht werden. Auch können darauf aufbauend Anweisungen zur weiteren notwendigen Verfahrensweise an die Bedienperson ausgegeben werden.For a technical diagnosis of the pressing device according to the invention, this information is retrievable in the computer 8 and can be edited there with a suitable program. Thus, encrypted error codes may be decoded and displayed in verbal or graphical form, including presentation and / or marking of the device component in question or defective on the screen of the computer 8. Also based on instructions for further necessary procedure can be issued to the operator.
Ebenso kann verfahren werden, nachdem - wie oben bereits erwähnt - eine dynamische Funktionsüberprüfung des Pressgerätes unter Inbetriebnahme des Pressgerätes, insbesondere bei Durchführung eines Leerhubs mit einem eingesetzten Presswerk-zeug, erfolgt ist. Nachdem eine aufgenommene Strom-Spannungs- bzw. Leistungs-Charakteristik im Computer mit dort niedergelegten, für bestimmte Funktions- und Fehlerzustände charakteristischen Strom-Spannungs- bzw. Leistungs-Charakteristiken verglichen und daraus, gegebenenfalls unter Heranziehung der aus dem elektronischen Informationsspeicher der Steuer- und Überwachungseinheit in den Computer übertragenen Informationen, ein Diagnosebild erstellt worden ist, kann dieses in verbaler und/oder grafischer Form, gegebenenfalls zusammen mit Handlungsanweisungen für die Bedienperson des Pressgerätes, auf dem Bildschirm des Computers 8 zur Anzeige gebracht werden.Likewise, it can be moved after - as already mentioned above - a dynamic function check of the pressing device under commissioning of the pressing device, especially when carrying out a Leerhubs with a press tool used, done. After a recorded current-voltage or power characteristic in the computer with there laid down characteristic of certain functional and fault conditions current-voltage or performance characteristics compared and therefrom, possibly using the from the electronic information storage of the control and Monitoring unit in the computer transmitted information, a diagnostic image has been created, this can be displayed in verbal and / or graphical form, possibly together with instructions for the operator of the pressing device on the screen of the computer 8 to display.
Durch diese Art und Weise der Diagnose werden die technischen Zustände und Vorgänge in dem erfindungsgemäßen Pressgerät für die Bedienperson transparenter. So wird es möglich, durch die Überprüfung mittels des Computers Ursachen für Störungen, die beispielsweise aus sicherheitstechnischen Gründen zu einer Sperrung des Antriebs führen können, wie Verschmutzungen, aber auch ein defektes Getriebe, fehlendes Hydrauliköl oder klemmende Rückschlagventile, aufzudecken und direkt am Einsatzort des Geräts zu beheben, ohne dass das Pressgerät dazu in ein Servicezentrum gebracht werden müsste.By means of this type of diagnosis, the technical conditions and processes in the pressing device according to the invention become more transparent to the operator. Thus, it becomes possible by checking by means of the computer causes of faults that can lead to a locking of the drive, for example, for safety reasons, such as soiling, but also a defective gear, missing hydraulic oil or clamping check valves, uncovered and fixed directly at the place of use of the device, without the pressing device would have to be brought to a service center.
Es kann bedarfsweise aber auch, z. B. per Telefon oder direkt vom Computer 8 aus via Internet, eine Kontaktaufnahme mit dem Servicezentrum zur Abstimmung der weiteren Vorgehensweise erfolgen. Hier können der Bedienperson unter Umständen Freischaltcodes zur Aufhebung einer Antriebssperre mitgeteilt und die Bedienperson autorisiert werden, diese interaktiv vom Computer 8 aus in das Pressgerät einzugeben.It may, if necessary, but also, for. B. by phone or directly from the computer 8 via the Internet, contact with the service center to vote the further course of action. Here, the operator may be informed release codes to cancel a drive lock and authorized the operator to enter them interactively from the computer 8 in the pressing device.
Die Erfindung ist nicht auf das dargestellte Ausführungsbeispiel beschränkt, sondern umfasst auch alle im Sinne der Erfindung gleichwirkenden Ausführungen, wie beispielsweise Interfaces, die auf älteren Schnittstellenausführungen, wie seriellen oder parallelen Anschlüssen basieren.The invention is not limited to the illustrated embodiment, but also includes all the same in the context of the invention embodiments, such as interfaces based on older interface designs, such as serial or parallel ports.
Der Fachmann kann des Weiteren ergänzend zweckmäßige zusätzliche oder alternative technische Maßnahmen, beispielsweise bei der Heranziehung technischer Parameter zur Durchführung der Diagnose, wie die Stützung der Diagnose auf eine Charakteristik des Öldruckanstieges bzw. des zeitlichen Verlaufs des Öldrucks oder eine Spindeldrehzahl usw., ergreifen, ohne das der Rahmen der Erfindung verlassen wird.The person skilled in the art may additionally take additional appropriate additional or alternative technical measures, for example by using technical parameters for carrying out the diagnosis, such as supporting the diagnosis on a characteristic of the oil pressure rise or the time course of the oil pressure or a spindle speed, etc. which will leave the scope of the invention.
Ferner ist die Erfindung nicht auf die im Anspruch 1 und den anderen unabhängigen Ansprüchen definierten Merkmaiskombinationen beschränkt, sondern kann auch durch jede beliebige andere Kombination von Merkmalen aller insgesamt offenbarten Einzelmerkmale definiert sein. Dies bedeutet, dass grundsätzlich jedes Einzelmerkmal der unabhängigen Ansprüche weggelassen bzw. durch mindestens ein an anderer Stelle der Anmeldung offenbartes Merkmal ersetzt werden kann. insofern sind die Ansprüche lediglich als ein erster Formulierungsversuch für eine Erfindung zu verstehen.Furthermore, the invention is not limited to the combinations of indicia combinations defined in claim 1 and the other independent claims, but may also be defined by any other combination of features of all individually disclosed features. This means that in principle each individual feature of the independent claims can be omitted or replaced by at least one feature disclosed elsewhere in the application. In this respect, the claims are to be understood only as a first formulation attempt for an invention.
- 11
- Gehäusecasing
- 22
- Griff von 1Handle of 1
- 33
- Lauf von 1Run from 1
- 44
- Werkzeugaufnahme von 3Tool holder of 3
- 55
-
Bohrung 5 von 4
Bore 5 of 4 - 66
- Befestigungselement (Verbindungsbolzen)Fastening element (connecting bolt)
- 77
- Interface (USB-Steckbuchse)Interface (USB socket)
- 88th
- Computer (Laptop)Computer (laptop)
- 99
- Kabel (USB-Verbindungskabel für 7 und 8)Cable (USB connection cable for 7 and 8)
- PP
- Pressgerätpressing unit
Claims (12)
- Electrohydraulic pressing device (P) for joining workpieces, with a housing (1) for receiving a pressing tool, with a drive for moving the pressing tool and with an electronic control and monitoring unit, to which an electronic information memory is associated, wherein the electronic control and monitoring unit has an interface (7) for connecting to a computer (8), the electronic control and monitoring unit comprises an operating hours meter and a temperature measuring device and that, during the operation of the drive, the following information is stored permanently in the electronic information memory:-- information representing the number of strokes of the pressing device,-- at least one element of operating information per second of operation of the drive,-- information representing the temperature of the pressing device or the temperature of a part of the pressing device,-- information representing the date or the point in time in which the device is operating.
- Pressing device (P) according to claim 1, characterised in that the interface (7) is a universal serial bus (USB), preferably a USB plug (7) to connect to a laptop (8) via a USB cable (9).
- Pressing device (P) according to one of the previous claims, characterised in that the interface (7) can be covered by a blind plug inserted into an opening in the housing (1).
- Pressing device (P) according to one of the previous claims, characterised in that the pressing tool can be interchangeably mounted in a socket in the housing (1) preferably by means of a securing element (6), such as a pin (6).
- Pressing device (P) according to claim 4, characterised in that the electronic control and monitoring unit has a device for detecting the position of the securing element (6).
- Pressing device (P) according to one of the previous claims, characterised by a stand-alone energy storage unit, such as an accumulator.
- Arrangement for the technical diagnosis of a pressing device (P), comprising a pressing device according to one of the claims 1 to 6, a computer (8) and a connecting cable (9) to connect the pressing device (P) to the computer (8).
- Arrangement according to claim 7, characterised in that the connecting cable (9) to connect the pressing device (P) to the computer (8) is a universal serial bus cable (USB cable 9).
- Method for the technical diagnosis of a pressing device (P), characterised by the use of an arrangement according to one of the claims 7 or 8.
- Method according to claim 9, characterised in that the technical characteristics of the pressing device (P), such as the static properties or information about an operating and/or fault condition that occurs, which are recorded in the electronic information memory of the control and monitoring unit, are transmitted for data processing to the computer (8).
- Method according to claim 9 or 10, characterised in that a functional test is performed on the pressing device (P) during start-up of the pressing device (P), in particular when a no-load stroke is carried out with an inserted pressing tool.
- Method according to claim 11, characterised in that, during or after starting up the pressing device (P), information representing the number of strokes of the pressing device and at least one element of operating information per second of operation of the drive are stored permanently in the electronic information memory, wherein a current-voltage characteristic relationship in particular is recorded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL08013403T PL2025475T3 (en) | 2007-07-25 | 2008-07-25 | Electro-hydraulic pressing device for joining work pieces and method for executing a technological diagnosis of the pressing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007035206A DE102007035206A1 (en) | 2007-07-25 | 2007-07-25 | Pressing device for connecting workpieces and arrangement and method for carrying out a technical diagnosis of the pressing device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP2025475A2 EP2025475A2 (en) | 2009-02-18 |
| EP2025475A3 EP2025475A3 (en) | 2010-07-07 |
| EP2025475B1 true EP2025475B1 (en) | 2015-05-06 |
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ID=39884335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20080013403 Active EP2025475B1 (en) | 2007-07-25 | 2008-07-25 | Electro-hydraulic pressing device for joining work pieces and method for executing a technological diagnosis of the pressing device |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2025475B1 (en) |
| DE (1) | DE102007035206A1 (en) |
| ES (1) | ES2537962T3 (en) |
| PL (1) | PL2025475T3 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5796741B2 (en) | 2011-05-19 | 2015-10-21 | 日立工機株式会社 | Electric tool |
| DE102011050718A1 (en) | 2011-05-30 | 2012-12-06 | Rennsteig Werkzeuge Gmbh | METHOD AND ARRANGEMENT FOR THE WEIGHTED MONITORING OF THE WEAR OF A HAND TONGUE FOR THE COMPRESSION OF WORKPIECES |
| DE102013203553B3 (en) * | 2013-03-01 | 2014-07-17 | Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kg | Hand-held pressing device |
| US9521280B2 (en) | 2013-12-04 | 2016-12-13 | Hellermanntyton Corporation | Systems and methods for display of regulatory information related to labeling |
| WO2016205846A1 (en) * | 2015-06-23 | 2016-12-29 | Henn Gmbh & Co Kg. | Method for calculating a usage figure for a pressing tool in a joining press |
| DE102021204604A1 (en) | 2021-03-11 | 2022-09-15 | Ridge Tool Company | PRESS TOOLING SYSTEM WITH VARIABLE FORCE |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202008006831U1 (en) * | 2008-05-20 | 2009-06-25 | Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kg | Hand-operated pressing device |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5195042A (en) * | 1990-06-27 | 1993-03-16 | Burndy Corporation | Apparatus and method for controlling crimping of articles |
| DE29703052U1 (en) * | 1997-02-21 | 1997-04-03 | Novopress Gmbh | Press device for connecting workpieces |
| CH693444A5 (en) | 1998-10-02 | 2003-08-15 | Arx Ag | Press apparatus for joining workpieces. |
| WO2001005559A2 (en) * | 1999-07-16 | 2001-01-25 | Gass Stephen F | Improved power tools |
| DE20023674U1 (en) * | 1999-08-17 | 2005-06-30 | Novopress Gmbh Pressen Und Presswerkzeuge & Co Kg | Hand-operated tool, especially press fitting tool, has interval element that is activated at least once after switching on load element and that compares the voltage within the interval |
| US20020134811A1 (en) * | 2001-01-29 | 2002-09-26 | Senco Products, Inc. | Multi-mode power tool utilizing attachment |
| DE20317912U1 (en) * | 2003-11-19 | 2004-03-04 | Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kg | Hand guided press tool for forming a press joint, e.g. between pipes, comprises a recording device for tool specific and/or pressing specific and/or operator specific data, and documentation device having a printer |
| RU2007122629A (en) * | 2004-11-24 | 2008-12-27 | Эмерсон Электрик Ко. (Us) | FITTING CLAMP (OPTIONS) |
| FR2916091B1 (en) * | 2007-05-11 | 2009-07-17 | Eurocopter France | IMPROVEMENT IN INTEGRATED CONTROL CRIMPING SYSTEMS. |
-
2007
- 2007-07-25 DE DE102007035206A patent/DE102007035206A1/en active Pending
-
2008
- 2008-07-25 PL PL08013403T patent/PL2025475T3/en unknown
- 2008-07-25 ES ES08013403.4T patent/ES2537962T3/en active Active
- 2008-07-25 EP EP20080013403 patent/EP2025475B1/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202008006831U1 (en) * | 2008-05-20 | 2009-06-25 | Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kg | Hand-operated pressing device |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2537962T3 (en) | 2015-06-16 |
| PL2025475T3 (en) | 2015-12-31 |
| EP2025475A3 (en) | 2010-07-07 |
| DE102007035206A1 (en) | 2009-01-29 |
| EP2025475A2 (en) | 2009-02-18 |
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