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EP3243604B1 - Appareil d'injection manuel motorisé et procédé de fonctionnement d'un appareil d'injection manuel motorisé - Google Patents

Appareil d'injection manuel motorisé et procédé de fonctionnement d'un appareil d'injection manuel motorisé Download PDF

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Publication number
EP3243604B1
EP3243604B1 EP17177348.4A EP17177348A EP3243604B1 EP 3243604 B1 EP3243604 B1 EP 3243604B1 EP 17177348 A EP17177348 A EP 17177348A EP 3243604 B1 EP3243604 B1 EP 3243604B1
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EP
European Patent Office
Prior art keywords
pressure
pressing
compression device
compression
sensor
Prior art date
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Active
Application number
EP17177348.4A
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German (de)
English (en)
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EP3243604A1 (fr
Inventor
Egbert Frenken
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.)
Gustav Klauke GmbH
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Gustav Klauke GmbH
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Publication date
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Publication of EP3243604A1 publication Critical patent/EP3243604A1/fr
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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
    • B30B15/16—Control arrangements for fluid-driven presses
    • B30B15/166—Electrical control arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
    • B21D39/048—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods using presses for radially crimping tubular elements
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/16—Control arrangements for fluid-driven presses
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
    • H01R43/042—Hand tools for crimping

Definitions

  • the invention relates first to a motor-driven hand pressing device according to the preamble of independent claim 1, with a fixed part and a moving part, wherein the moving part is moved by a running in a hydraulic cylinder hydraulic piston relative to the fixed part and is moved back by means of a return spring in an initial position, wherein a pressure sensor is provided, which detects the pressure of the hydraulic fluid in the hydraulic cylinder.
  • the invention further relates to a method according to the preamble of independent claim 10 for operating a motor-operated hand-pressing device, in which one or more pressing jaws are moved from a start position to a closed pressing position, until a predetermined pressing force is achieved or one on a switch operation predetermined time has elapsed, after which automatically, for example by return of a pressing piston, a pressing jaw release takes place, wherein furthermore the pressing piston is actuated hydraulically by means of a hydraulic medium.
  • Such pressing devices and methods for operating a pressing device are known. For example, be on the WO 99/19947 directed.
  • the pressing device known therefrom is hydraulically driven.
  • directly driven by electric motor such pressing devices are known.
  • two compression jaws and only one be provided against a fixed counter-stop to be moved pressing jaw. See, for example US 5,727,417 ,
  • a pressure medium pliers for clamping rings is known in which in the power flow between the drive piston and the pliers insert halves, a force sensor for measuring a force dependent on the closing force of the pliers insert halves force is arranged.
  • a hydraulically actuated blind riveting tool to measure a period of time that elapses from gripping the blind rivet extension to fully retracting the blind rivet and comparing that period of time with predetermined periods of time to determine if the setting operation of the current blind rivet is within a predetermined range Range of values is.
  • a pressing device in which the achievement of a predetermined maximum pressure is monitored. When the maximum pressure is reached, the piston position is measured and a reset process performed for the piston. In addition, a time check is provided, which checks whether the time that has passed until the predetermined pressure value is reached is within a predetermined bandwidth. From the EP 941 813 A1 Furthermore, a pressing tool is known in which in the same way the achievement of a predetermined pressure is monitored and also the time that has elapsed until the pressure is reached. In addition, the piston position is recorded here.
  • the invention has for its object to provide a pressing device and a method for operating a pressing device, which allows a simple and reliable check for a complete pressing.
  • the reaching of the predetermined pressing force can be checked by means of the pressure of the hydraulic fluid sensing pressure sensor.
  • the check can be carried out in detail, for example, by a comparison between a predetermined minimum pressure value and an actually achieved pressure value. If, for example, the compression should have reached at least a pressure value of 500 bar, this value can be preset as a minimum pressure value and compared with a pressure value reached, for example 600 bar or 650 bar. As long as the difference between the actually achieved pressure value and the predetermined pressure value is positive, such a compression can be considered to be in order.
  • such a pressure sensor can also be used to check by means of the pressure detection a desired automatic opening of the return valve.
  • a desired automatic opening of the return valve By storing corresponding curves corresponding to a complete pressing operation, the actual setting and function of the automatically opening return valve can be checked for the large pressure drop occurring upon automatic opening of the return valve.
  • a corresponding value storage can be used during maintenance work to set the return valve without having to actually perform an actual pressurization.
  • the pressure sensor can be used to that by setting a pressure threshold, which is below a to be reached for the completion of a pressing cycle maximum pressure, a stop of the moving member is performed to achieve a pressure maintenance.
  • the maximum pressure value would correspond to the release pressure set with respect to the return valve.
  • the pressure threshold value is selected correspondingly below the release pressure of the return valve in this case.
  • the pumping operation can then be continued.
  • the predetermined actuation of the trigger switch can proceed accordingly automatically and take place after expiration of a, optionally freely selectable, period of time from stopping the engine after reaching the pressure threshold.
  • a repeated actuation under pressure that is to say at the approximately predetermined pressure threshold
  • the return valve is opened at the same time as the second actuation, since then the pressurization desired for this treatment purpose is achieved and a further rise in pressure until the automatic opening of the return valve (in the usual cycle) is no longer needed.
  • a current sensor for detecting the motor current can be provided, wherein by means of the pressure and current measurement of the relevant hydraulic fluid pressure to Evaluation is used and / or a distance derived therefrom for further determination is used.
  • a determination of the piston position is performed by means of the pressure sensor.
  • the - suitably preprogrammed - microcontroller for evaluating the signals supplied by a current sensor and / or a timer and / or a displacement sensor is provided.
  • a current sensor and / or a timer and / or a displacement sensor is provided.
  • only one pressure sensor, i. no displacement sensor and no current sensor, but a timer are provided.
  • the pressure sensor may be provided in combination with the current sensor, and a timer.
  • an electrical line transmitting the signal of the pressure sensor to a microcontroller is branched and that a branch line is switched unfiltered to an ADC channel of the microcontroller, while the other branch line is provided with an amplification unit and / or a low-pass filter ,
  • a pressure prevailing in the hydraulic fluid when a pressing process is activated be measured and compared with a desired value. In this way, it can first be determined whether it is a turning on of the pressing device in a conventional starting position, in which only the bias voltage caused by the return spring, for example (with a certain surcharge) is applied. Or whether it is a reconnection of the pressing device after a switch off and pressure, such as if, in the course of a widening process, a certain pressure is to be continuously applied to the workpiece over a certain period of time.
  • an opening of the return valve is performed in dependence on the determined when switching on the pressure of the hydraulic fluid associated with this switching.
  • This procedure is in turn of importance, in particular, in relation to the expansion method already given by way of example. If, on the basis of the comparison with a nominal value, it is ascertained that it is a reconnection under pressure, the desired or predetermined holding time under pressure in the course of the expansion process, for example, has expired at the same time. Thus, with this reconnection then immediately opening the return valve can be performed combined.
  • the pressure may be measured at intervals of between one and twenty milliseconds.
  • the pressing device is variably usable, so that it (only) interrupts the release when suitably actuated at the intermediate position. Similar processes can always be carried out starting from the same intermediate position.
  • it may be provided in terms of operation technology, which is also explained below, that with regard to the respective interruption at the intermediate position no special operation is required, but if no interruption should take place at the intermediate position, this - more preferably: once - by a special operation of the device can be achieved.
  • a special switch operation out, an interruption of the press jaw release at the desired intermediate position, but not otherwise.
  • the storage of said measure or measured value always takes place during each pressing process. Regardless of whether the interruption is applied using this measure or not.
  • a first workpiece contact is determined and a path or time mark assigned to this first workpiece contact is detected.
  • the workpiece contact can basically be detected by the pressure sensor arranged, for example, in a pressing jaw.
  • the workpiece contact can continue, for example, by evaluating the motor current. As soon as there is a significant increase in the motor current, this can be interpreted as a workpiece contact.
  • the pressure of the hydraulic fluid can also be detected by means of the pressure sensor. Since the hydraulic fluid pressure due to the friction of the piston in the cylinder and the force of the return spring has an approximately linear pressure increase and pressure drop on the way back and forth of the piston, the actual position of the piston in the cylinder can be determined hereby also with a certain tolerance. In this respect, a pressure value measured over time can be converted into a displacement value and insofar as subsequently also explained with reference to a displacement value, are converted with respect to the position of the piston and thus ultimately the pressing jaws or used as an analog value for this purpose become.
  • the assigned position of the pressing jaws acting actuator can thus be detected and subsequently, after pressing, in the course of the release of the pressing jaws, then this measure can be made according to the interruption to achieve the intermediate position.
  • the addition to the travel, pressure or time measurement can be between 0 and 50% of the measure, this bandwidth also including all intermediate values, in particular in 1/10% steps.
  • the addition may therefore be between 0 and 40.9% and 0 and 40.8% etc. But also between 0.1 and 50%, 0.2 and 50%, 0.3 and 50% and on the other hand also between 0.1 and 40.9%, 02 and 40.9%, 0.2 and 40.8%, etc. From these values, particularly preferred is 0 to 10% inclusive again intermediate values as indicated.
  • a further possibility for determining the intermediate position is also given by the fact that the time from the workpiece contact to the completion of the compression is measured and the press jaw release after the passage of a measured time corresponding path, since the completion of the compression, is interrupted.
  • the interruption is thus (only) time-dependent, due to the given relationships (the return there is virtually no interference to be considered, so that a certain time since the beginning of the return corresponds quite accurately to a specific piston travel) the way is readily determinable (eg over a factor applied to the measured time).
  • the end of the compression itself will suitably be detected in a conventional manner. For example, due to the pressure drop and / or opening of a return or overload valve. If necessary, also only on the expiry for a certain period of time, for example, measured since the start of the injection cycle.
  • the intermediate position can be stored and, depending on a specific actuation or non-confirmation of the pressing device during the following pressing operations, the return is in each case carried out only up to the intermediate position.
  • This can be achieved, for example, by the fact that the interruption at the intermediate position takes place only as long as it is repeated, as a start key of the device remains pressed continuously.
  • the start button As soon as the start button is no longer pressed, the device then returns to its original start position.
  • the pressed start button can then take place nevertheless a shutdown of the engine, be it the hydraulic motor or the electric motor, after completion of the compression.
  • the - further depressed start button then ensures that at the assigned intermediate position, the interruption of the return or the press jaw release takes place.
  • the interruption of the return at a desired location has the consequence that the pressing jaws or a movable pressing jaw with fixed counter-stop, only a maximum of such interruption associated, opening, then, when the interruption has occurred.
  • This may mean, for example, that a displacement on the same tubing to a further injection point is possible, but the complete removal of the device from the pipe in question is not possible.
  • a security aspect is given that the device, for example, can not fall down.
  • the travel and / or pressure and / or time measurement is detected according to a freely selected interruption.
  • a break occurs (see above-mentioned German patent application 10 2006 026 552 ) can this associated distance and / or pressure and / or time measurement (time about the time that has passed since the completion of the pressing process) are detected and then take place at a next pressing operation at the same point, the interruption automatically. It then only requires, for example by briefly pressing the start button, an initiation of the next pressing process, which then without any other operation is required, automatically ends at the selected intermediate position again. If you want to return to the starting position, this can be done by long pressing, double-pressing the start button or the like; depending on which "detection" on the device is preset or preprogrammed.
  • the displacement and / or pressure and / or time measurement can be detected according to a change in the operating rhythm. This can happen, for example, by the fact that up to the desired intermediate position, now starting with the starting position (on the "way out” to a - first - Compression), by repeated short-term pressing a start button of the device, the forward movement of the biasing member for the pressing jaws takes place. As soon as the desired intermediate position has been reached, the start button can be pressed continuously until the compression is completed. Then the start button can be released and the release of the pressing jaws then takes place automatically only up to the intermediate position. Pressing the start button again, whether with constant holding or only short-term operation, the next Verpressrhythmus runs accordingly in the same way.
  • a hydraulic pressing device 1 with an electric motor 2, a hydraulic fluid reservoir 3, a pump assembly 4 and a plunger 5, which is directly connected to a pressing jaw 6.
  • the electric motor 2 is operated in the embodiment via stored in an accumulator 7, not shown in detail electrical energy.
  • the electric motor 2 will start to run on the operation of the switch 8 back and pumped accordingly by means of the pump 4 from the hydraulic fluid reservoir 3 in the hydraulic cylinder 9 hydraulic fluid, whereupon the hydraulic piston 5 together with the pressing jaw 6 from the in Fig. 1 shown starting position in the in Fig. 2 moved shown pressing position.
  • a current sensor may be provided, which detects a current profile over the path of the hydraulic piston 5, as it qualitatively in the FIGS. 10, 11 is shown.
  • the Fig. 10 in this case relates to a hydraulic pump of conventional design or the qualitatively quite fundamental course of the current curve.
  • the Fig. 11 relates to the course of the current curve in a two-stage hydraulic pump, but not exactly reproduced here, but qualitatively represented. Especially such a two-stage hydraulic pump as that from the EP 0 927 305 B1 is known.
  • a very high current pulse is initially detected.
  • a practical value is here, for example, at 80 amps.
  • This current value decays very quickly with the starting up of the electric motor, to a value which is only slightly above the no-load current of the motor.
  • the motor current increases.
  • a certain threshold is exceeded in the FIGS. 10, 11 is associated with the path S1 (in the same way this is also a Time measurement, where the way can understandably only be applied to the closure of the compression jaws)
  • this storage value is stored approximately in a memory chip accommodated in the device, which may have a volatile memory for this purpose.
  • the increase in the current curve up to a maximum value is evident. This corresponds to the completion of the compression or the triggering of the return valve, after which the hydraulic pressure correspondingly drops sharply or even the hydraulic pump is switched off automatically.
  • Time dimension S'1 to define a touch, so with the beginning of the actual increase of the motor current.
  • the interruption can be carried out, for example, as in the above-mentioned patent application 10 2006 026 552 is explained in detail.
  • the relationship between motor current and path, approximately according to Fig. 10 can be stored in a non-volatile memory during the manufacture of the device.
  • a storage of this associated path value takes place approximately in a stored in the device memory chip, which may have a volatile memory for this purpose.
  • the path value can be done, for example, by converting the motor current detected over time, since a sufficiently precise (at least when averaging: linear) relationship exists between the travel of the piston and the (only) required motor current up to a first workpiece contact. There then takes place an interruption of the return of the hydraulic piston 5 after completion of pressing at this associated way mark S1. The interruption can be carried out, for example, as in the above-mentioned patent application 10 2006 026 552 is explained in detail.
  • the relationship between motor current and path, approximately according to Fig. 5 can be stored in a non-volatile memory during the manufacture of the device.
  • a displacement measurement can alternatively or additionally also the relative position between the hydraulic cylinder and the hydraulic piston, in the case of Piston device, for example, be detected.
  • the completion of the compression can be detected, for example, by the fact that a, accompanied by the opening of a return valve, strong drop in the motor current, which waste is then used to detect the end of the compression.
  • the time that elapses from the workpiece contact to the completion of the pressing is not the same for each pressing, but rather can depend on individual pressing conditions, in particular the pressed materials, the time can additionally or alternatively also be measured, that of the first workpiece contact , detected approximately in the manner described above, passes until the completion of the compression and this time measure then used accordingly to then trigger the interruption after completion of the compression and elapse of this time measure, so that - in the example - the hydraulic piston assumes the desired intermediate position.
  • a timer such as in the form of a microchip. In the event that a period of time is to be detected, this timer will start to count at a certain triggering time and then at a certain end time point the time interval thus determined will be detected and stored, for example, in the volatile memory.
  • Fig. 2 is the injection condition of the device according to Fig. 1 shown.
  • Fig. 3 is the device according to Fig. 1 represented in the retracted then then due to the procedure described intermediate position.
  • a device is shown with two pressing jaws.
  • Fig. 5 is shown in a partially schematic view of a pressing device in which a pressure sensor 10 is arranged.
  • the pressure sensor is assigned to the return channel 11 of the hydraulic fluid, via which return passage, the hydraulic fluid flows to the return valve 12 and from there, with the return valve open, in the storage area 13.
  • a branch channel 14 is provided, see Fig. 6 , communicates with a receiving channel 15 of the pressure sensor 10.
  • the pressure sensor is thus circumferentially offset arranged to the return valve 12 and / or the return passage 11.
  • Fig. 7 the quality of the pressure measured by a pressure sensor over the piston stroke during compression is shown qualitatively. This already corresponds to a conversion. Because the actual pressure detection is usually preferred only over time. In principle, however, an additional displacement sensor can also be provided, for example.
  • the pressure scale is also designed for very low pressures, for example up to 10 bar, in the illustration.
  • the pressure is preferably measured at regular time intervals. In the embodiment, at intervals of five milliseconds.
  • Fig. 7 Due to this relationship according to Fig. 7 can also be closed or calculated back to the position of the piston outside a workpiece contact from the measured pressure. This can be exploited, for example, that, by comparing the measured values, that piston position is determined which still corresponds to the linear relationship before a significant pressure increase due to the workpiece contact then occurs. A piston position determined in this way can subsequently be used as an intermediate position or holding position, from which then the next pressing can be started.
  • Fig. 8 In reference to Fig. 8 is in basically the same representation (pressure over the way) as in Fig. 7 the qualitative pressure curve is shown at a complete compression.
  • the grouting process begins at point A, here assuming a completely receded compression piston.
  • point B represents the workpiece contact and the beginning of a significant compression pressure increase.
  • the compression takes place until the point C is reached, specifically in accordance with a first pressure gradient.
  • point C the pressing jaws lie on one another, but the triggering pressure at the end of the pressing or opening of the return valve has not yet been reached. It then comes to an increase in the pressure gradient until the point D is reached.
  • point D opens the return valve or the compression is terminated and the pressure drops again to point E, whereupon then the return of the piston, in the given case to to the point A in turn, takes place.
  • Fig. 9 For clarity, the pressure curve (or a current measured at the pressure sensor) is plotted over time. It is in terms of a typical course for a real compression. Again, the above-mentioned points A, B, C, D and E can basically be distinguished.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Control Of Presses (AREA)
  • Press Drives And Press Lines (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Automatic Assembly (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Manipulator (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Claims (13)

  1. Dispositif de pressage manuel motorisé (1), comprenant une partie fixe et une partie mobile, dans lequel la partie mobile est déplacée par rapport à la partie fixe par un piston hydraulique (5) coulissant dans un cylindre hydraulique (9) et est susceptible d'être ramenée dans une position initiale au moyen d'un ressort de rappel, dans lequel un capteur de pression est prévu lequel détecte la pression du fluide hydraulique dans le cylindre hydraulique (9), caractérisé en ce qu'est prévu un microcontrôleur pour évaluer les signaux fournis par le capteur de pression, en ce que la pression peut être mesurée à intervalles réguliers de moins d'une seconde après une activation du dispositif, et en ce qu'une différence de gradients de pression peut être utilisée après un premier contact avec une pièce d'œuvre pour une évaluation quant à l'obtention d'un pressage complet.
  2. Dispositif de pressage manuel selon la revendication 1, caractérisé en ce que l'atteinte d'un gradient de pression correspondant à un appui des mâchoires de pressage l'une contre l'autre est susceptible d'être évalué comme signifiant que le pressage a eu lieu.
  3. Dispositif de pressage manuel selon l'une des revendications précédentes, caractérisé en ce que l'atteinte de la force de pressage prédéterminée peut être obtenue par une comparaison entre une valeur de pression minimale prédéterminée et une valeur de pression effectivement atteinte.
  4. Dispositif de pressage manuel selon l'une des revendications précédentes, caractérisé en ce qu'un capteur de courant est prévu pour détecter le courant moteur et en ce que le microcontrôleur est prévu pour évaluer les signaux fournis par un capteur de courant et/ou un dispositif de mesure de temps.
  5. Dispositif de pressage manuel selon l'une des revendications précédentes, caractérisé en ce qu'il n'est prévu qu'un capteur de pression, aucun capteur de déplacement et aucun capteur de courant, mais un dispositif de mesure de temps.
  6. Dispositif de pressage manuel selon l'une des revendications 1 à 4, caractérisé en ce que le capteur de pression est combiné avec un capteur de courant et un dispositif de mesure de temps.
  7. Dispositif de pressage manuel selon l'une des revendications précédentes, caractérisé en ce qu'une pression régnant dans le fluide hydraulique lors de l'enclenchement d'une opération de pressage est mesurée et comparée à une valeur cible.
  8. Dispositif de pressage manuel selon l'une des revendications précédentes, caractérisé en ce que, en fonction de la pression du fluide hydraulique déterminée lors de l'activation, une ouverture d'une valve de rappel est réalisée en association avec cette activation.
  9. Dispositif de pressage manuel selon l'une des revendications précédentes, caractérisé en ce que la pression est mesurée à un intervalle de temps compris entre une et vingt millisecondes.
  10. Procédé pour faire fonctionner un dispositif de pressage manuel motorisé, dans lequel, sur actionnement d'un interrupteur, une ou plusieurs mâchoires de pressage sont passées d'une position de départ à une position de pressage fermée jusqu'à ce que soit atteinte une pression de pressage prédéterminée ou qu'une durée prédéterminée soit écoulée, après quoi un relâchement de mâchoire(s) de pressage s'effectue automatiquement, par exemple par retour d'un piston de pressage, dans lequel en outre le piston de pressage est actionné hydrauliquement au moyen d'un fluide hydraulique, caractérisé en ce que l'atteinte de la force de pressage prédéterminée est contrôlée au moyen d'un capteur de pression détectant la pression du fluide hydraulique, la pression étant mesurée à intervalles réguliers de moins d'une seconde après la mise en marche du dispositif, et en ce que l'exécution du pressage est contrôlée au moyen de la détection de pression par rapport à différents gradients de pression.
  11. Procédé selon la revendication 10, caractérisé en ce qu'un passage à une augmentation de pression plus abrupte détectée après contact de la pièce d'œuvre et pressage correspondant, est évalué comme étant un signal pour un pressage complet.
  12. Procédé selon l'une des revendications 10 ou 11, caractérisé en ce qu'une ouverture automatique souhaitée de la valve de retour est vérifiée au moyen de la détection de pression.
  13. Procédé selon l'une des revendications 10 à 12, caractérisé en ce qu'un arrêt de la pièce mobile est mis en œuvre pour obtenir un maintien de pression grâce à la spécification d'une valeur de seuil de pression inférieure à une valeur de pression maximale à atteindre pour l'achèvement d'un cycle de pressage.
EP17177348.4A 2007-05-16 2008-05-16 Appareil d'injection manuel motorisé et procédé de fonctionnement d'un appareil d'injection manuel motorisé Active EP3243604B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102007023068 2007-05-16
EP14151750.8A EP2722133B1 (fr) 2007-05-16 2008-05-16 Procédé de fonctionnement d'une presse manuelle à actionnement motorisé et presse manuelle
EP08759675.5A EP2146823B1 (fr) 2007-05-16 2008-05-16 Procédé de fonctionnement d'un appareil de compression à main motorisé
PCT/EP2008/056033 WO2008138987A2 (fr) 2007-05-16 2008-05-16 Procédé de fonctionnement d'un appareil de compression à main motorisé et appareil de compression à main

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EP14151750.8A Division EP2722133B1 (fr) 2007-05-16 2008-05-16 Procédé de fonctionnement d'une presse manuelle à actionnement motorisé et presse manuelle
EP14151750.8A Division-Into EP2722133B1 (fr) 2007-05-16 2008-05-16 Procédé de fonctionnement d'une presse manuelle à actionnement motorisé et presse manuelle

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Publication number Publication date
EP2146823B1 (fr) 2014-02-12
PT2146823E (pt) 2014-03-27
US10562254B2 (en) 2020-02-18
DE102008024018A1 (de) 2008-11-20
RU2483861C2 (ru) 2013-06-10
CN103624740B (zh) 2017-03-01
US9180583B2 (en) 2015-11-10
PL2146823T3 (pl) 2014-05-30
CN102528743B (zh) 2014-10-15
DK2146823T3 (da) 2014-05-05
EP3243604A1 (fr) 2017-11-15
ES2454245T3 (es) 2014-04-10
DE102008024018B4 (de) 2024-04-18
PL2722133T3 (pl) 2018-07-31
EP2722133A2 (fr) 2014-04-23
CN102528743A (zh) 2012-07-04
CN103624740A (zh) 2014-03-12
EP2146823A2 (fr) 2010-01-27
EP2722133B1 (fr) 2018-03-14
AU2008249954B2 (en) 2013-07-04
CN101754836A (zh) 2010-06-23
US20160023419A1 (en) 2016-01-28
KR20100021465A (ko) 2010-02-24
EP2722133A3 (fr) 2014-09-17
US20100300308A1 (en) 2010-12-02
AU2008249954A1 (en) 2008-11-20
KR101467828B1 (ko) 2014-12-03
WO2008138987A2 (fr) 2008-11-20
ES2665902T3 (es) 2018-04-30
CN101754836B (zh) 2014-06-11
US8056473B2 (en) 2011-11-15
WO2008138987A3 (fr) 2009-01-15
US20110247506A1 (en) 2011-10-13
RU2009146552A (ru) 2011-06-27

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