EP0963815B1 - Dispositif électro-hydraulique pour le sertissage de raccords de tuyaux - Google Patents

Dispositif électro-hydraulique pour le sertissage de raccords de tuyaux Download PDF

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Publication number
EP0963815B1
EP0963815B1 EP99109123A EP99109123A EP0963815B1 EP 0963815 B1 EP0963815 B1 EP 0963815B1 EP 99109123 A EP99109123 A EP 99109123A EP 99109123 A EP99109123 A EP 99109123A EP 0963815 B1 EP0963815 B1 EP 0963815B1
Authority
EP
European Patent Office
Prior art keywords
handle
accordance
electrohydraulic
housing body
control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP99109123A
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German (de)
English (en)
Other versions
EP0963815A3 (fr
EP0963815A2 (fr
Inventor
Siegfried Leverberg
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.)
Leverberg Siegfried
Original Assignee
Leverberg Siegfried
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Leverberg Siegfried filed Critical Leverberg Siegfried
Publication of EP0963815A2 publication Critical patent/EP0963815A2/fr
Publication of EP0963815A3 publication Critical patent/EP0963815A3/fr
Application granted granted Critical
Publication of EP0963815B1 publication Critical patent/EP0963815B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

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

Definitions

  • the invention relates to an electrohydraulic device for Crimping pipe connections for the production of solderless pipe connections, consisting of a motor part, which with a working piston containing cylindrical housing body a press jaw attachment on its face, a handle with trigger switch and control and supply lines that with a remote generator part of the device are connected, which is the hydraulic circuit controlled by an electrical system contains.
  • solderless cable connections have been introduced whose applications are not only compared to soldered connections, are less polluting, but also allow faster and safer working methods, since no open flame, such as when soldering, is used becomes.
  • These line connections are based on standard parts offered to the market and must be used when installing piping systems be pressed with the pipes to be connected.
  • press jaws required, which in press machines used either electromechanically or be driven electro-hydraulically to actuate the press jaws.
  • Such a tool is known, for example, from US Pat. No. 5,125,324 out.
  • the press jaws have largely uniform installation dimensions and often differ only in the press profiles for the fittings of the different pipe systems and pipe sizes.
  • the invention is therefore based on the object of a press machine propose which is designed such that it is from a Person can be handled with even more benefits through a better arrangement and utilization of the generator part the device is reached.
  • this object is achieved in that in the device listed at the beginning of the housing body Handle above the center of gravity of the motor part of the Has device and the trigger switch with control and monitoring elements is integrated in the handle.
  • This allows the Fitter grasp the device with all fingers of one hand without that they get into the area of the trigger switch and the Working hand is not burdened by an excessive tilting moment, since the center of gravity is below the handle and thus the hand is almost only loaded by tensile forces.
  • control and monitoring elements are located in the operator's field of vision and the trigger switch is in working mode by the operator's right or left thumb actuated.
  • the device according to the invention is therefore both for left and Also suitable for right-handed people and the trigger switch is included arranged so that it cannot be triggered accidentally. To do this, the trigger switch is outside the access area of the Handles arranged.
  • the present invention now offers the possibility of To make the housing body pivotable in the handle and in each Make the swivel position usable. This results in the installer considerable ease in assembly, since the Position of the clamping jaws exactly adapted to the line course can be without the fitter the ergonomically appropriate posture must change, the trigger switch always in the range of The mechanic's hand is on the thumb.
  • the coupling connection of the hydraulic feed hose to the Housing body is advantageously rotatable, so that no torque at the pivoting movement of the cylinder body motor part of the device can be transmitted.
  • the device according to the invention is a tool holder for fixed clamping of the device provided in a workbench for stationary operation, the tool holder has its own trigger switch and Control elements and a connection socket for receiving the Has control line.
  • the tool holder basically consists of two hinge-like connected holding and clamping elements for receiving and fixing the handle of the device, and a pivotable by 180 ° Trigger switch, with which a stationary left- and right-handed Operation is made possible.
  • the drive and control technology of the device is more advantageous Arranged way in a portable protective case, with what the generator part of the device is designed to be mobile.
  • At least one motor part of the device is according to the invention connected with the drive and control technology, so that several tools can be operated from one generator part can.
  • Figure 1 shows the electro-hydraulic device for pressing of pipe connections for the production of solderless pipe connections according to the invention. It consists of a cylinder or housing body 1.4, which is pivotally connected to a handle 1.1 is. On the handle 1.1 are for the thumb of the hand easily accessible a trigger switch 1.2 with arranged in front and easily visible control lights 1.3.1 and 1.3.2.
  • the cylinder body 1.4 is at its front end with a press jaw attachment 1.5 provided with the different and not shown types of press jaws and sizes can be connected in a simple manner can. The sizes of the press jaws to be used are determined according to the system and diameter of the pipes to be pressed.
  • the power-transmitting connection for driving the cylinder in the cylinder body 1.4 takes place via its respective connector 1.9 and in each case one hydraulic hose 5.1 shown in FIG. 5, which is connected to the drive station 4.2.
  • each Control cable 5.2 according to FIG. 5 becomes the control connection with the mobile pump unit or the drive station 4.2 according to Figures 4, 5 and 6 and the respective handle 1.1 on the Plug connection 1.8 made.
  • the handle 1.1 of the housing or cylinder body 1.4 is in the substantially above or slightly behind the center of gravity of the motor part of the device. Different depending on the use large press jaws can vary the center of gravity.
  • the known press machines are so heavy for the fitter that he is forced to use the press machine to handle with two hands.
  • the main improvement the press machine results from an advantageous one Separation of the motor part (1.4) from the generator part (4.2) the press, as will be explained in more detail later, whereby the part of the press machine to be handled not only lighter but also becomes much smaller and shorter and on the other hand through the use a handle 1.1 instead of a usual, with the known disadvantages of pistol grip, horizontally above the Tool body arranged, which is an ergonomically essential cheaper handling allowed.
  • the handling is similar to a "suitcase handle", in which the center of gravity is also below the Hand with all five fingers.
  • the handle 1.1 held cylinder tool body 1.7 is around his Axis rotatable and can - regardless of the respective workpiece position (Fitting) - be turned so that the press jaw can be set to the required working position on the fitting.
  • the Coupling connection 5.3 (see Fig. 5) of the hydraulic feed hose 5.1, which is connected to the plug closure 1.9, is also rotatable, so that forces caused by a twist of the hose 5.1 could not be effective. Because of these advantages, you can use the press tool after Invention even in confined and difficult to access places work satisfactorily.
  • the electro-hydraulic device according to the invention can be clamped in a normal vice and used as a stationary machine for the pre-assembly of pipe connections, such as. B. nodes, corner connections and the like, are used.
  • the additional device for the device according to the invention largely saves the uncomfortable and grueling work in unfavorable places, e.g. B. the so-called overhead installation, at the original locations of the pipe system.
  • all that is required is to attach and connect the corresponding pipes.
  • This not only means a significant reduction in workload and a reduction in the amount of work, but also contributes significantly to safety in the workplace, e.g. B. for ladders as a location for mounting at ceiling height.
  • the trigger switch 2.1 for this Working method is attached to the tool holder and is connected with the same cable that is also used for manual operation.
  • FIGS. 2a-d A holder for the device for pressing pipe connections can be seen from FIGS. 2a-d, which allows the device according to the invention to be used for stationary operation.
  • It consists of two Z-shaped halves 2.2 and 2.3 connected by a hinge 2.4, the vertical surfaces of which fix the handle 1.1 of the press machine when it is clamped in a vice. These surfaces are provided with an adhesive-intensive and elastic material 2.5, for example foam rubber. With this clamping, the rotatable tool body 2.9 held by the handle 1.1 comes to lie at the top, as shown in broken lines in FIG. 2b.
  • the trigger switch attached to the handle of the pressing device with the function display is in an inaccessible place, so that it is no longer possible to operate the pressing device properly.
  • an operation similar to that on the handle on one of the horizontal legs of the tool holder is attached, so that in the same way as for the mobile handling of the pressing tool, operation via trigger switch 2.1 and function control 2.6 can be carried out by red and green signal lamps.
  • the hydraulic connection to the drive station is through the Hydraulic hose 5.1 (see Fig. 5), which also in the same way is connected to the pressing device.
  • the electrical connection to the drive station is made by the existing one Control cable 5.2, which in this case is not with the socket 1.8 is connected in the handle of the pressing device, but with the trigger switch of the tool holder via the socket 2.7.
  • the operator can take up a similar working position to that of mobile handling, only that it does not need to hold the press tool and therefore has two hands free to prepare the respective pressing processes.
  • To carry out the pressing process he needs one Hand to operate the trigger switch 2.1 while the other Hand for fixing and holding the pipe elements to be assembled free is. This in turn is like the way you work with the mobile handling of the device according to the invention is common is.
  • FIG. 3 shows an electrohydraulic circuit in which the components used are shown with DIN-compatible symbols.
  • the complete drive and control technology is located in its own protective box 4.2 shown in FIG. 4, mounted on a mobile transport trolley or a transport cart. It can therefore be used in certain cases without a trolley, as shown in Fig.6.
  • the on and off switch 4.11 for the electrical control and on the back of the connector 4.12 for the power supply is attached.
  • the hydraulic circuit controlled by an electrical system according to FIG. 3 essentially consists of: a hydraulic pump 3.1, an electric drive motor 3.2, a pressure relief valve 3.3, a directional control valve 3.4 and a flow monitor 3.5.
  • the flow monitor 3.5 is installed in the return of the pressure relief valve 3.3, so that it only emits an electrical signal when the pressure relief valve 3.3 responds at maximum pressure and the flow rate of the hydraulic pump 3.1 flows fully via the flow monitor 3.5. Only then does the directional control valve 3.4 receive the command for the cylinder return. This ensures that the pressure is always with the cylinder force determined by the setting on the pressure relief valve 3.3.
  • the sequence of movements during the work process is controlled by the electro-hydraulic Circuit determined.
  • the process is as follows in front of:
  • the trigger switch 1.2 or 2.1 is activated by the operator's thumb actuates and causes the hydraulic cylinder to advance and thus the compression of the not shown Pressing jaws.
  • a factory-set pressure relief valve determines the maximum pressure of the hydraulic system and thus the maximum size of the pressing force on the press jaw. The set maximum force is sufficient for all pipe sizes. Is the maximum pressure reached, the device is automatically switched to reverse, the hydraulic cylinder moves back to the starting position and the press jaw comes loose. If for any reason the current one Pressing process is to be interrupted, it is only necessary to interrupt the actuation of the trigger switch 1.2 or 2.1.
  • the drive station is similar on a cart or cart a hand truck, arranged as shown in Figure 4.
  • the Carriage or cart is not only the unit 4.2 for the drive and control technology are transported, but also those for implementation the pressing operations required accessories, such as the Pressing tools, pressing jaws in different sizes, hydraulic hoses, Cables and the like.
  • special fasteners 4.8 are provided for attaching hoses and cables. This gives the advantage that the heavy equipment and parts for the Do not press the pipe connections over long distances must be carried away.
  • the trolley is equipped with 4.3 wheels that are not only for uneven floors are suitable, but also over stairs can be used away.
  • handlebars 4.4 and 4.5 provided on the car, with the help of two people the car can carry without much effort.
  • eyelets 4.6 to the whole device z. B. with the help of a construction crane to higher lying To be able to spend jobs.
  • the drive station can transported upright or lying down, but also in both positions operate.
  • the motor part according to FIG. 1 is from the generator part Figure 4 of the machine separately. Because the generator part, namely Pump, oil tank, hydraulic circuit, electric motor, electric control u. the like. The part with the greater weight is the advantageous possibility of using only the motor part as a work or To be able to use press tool for the actuation of the press jaws.
  • This pressing tool according to Figure 1 consists only of the Handle 1.1, the trigger switch 1.2, the indicator lights 1.3, the Housing body 1.4 with press jaw attachment 1.5 and is over the Hydraulic hose 5.1, 4.1, 1.9 and the electrical cable 5.2, 4.7, 1.8 with the mobile pump unit, the drive station after Figure 4 connected, which stands on the floor.
  • the separation between the drive station and the implement allows also connect drive tools that are suitable for press jaws which have different installation dimensions or which are intended for other applications.
  • the Fan side of the electric motor 4.9 protrudes from the protective box 4.2 in which the drive and control technology is located.
  • the air is drawn in by the fan of the electric motor and through air vents 4.10, which are on the side walls of the protective box.
  • This also makes the inside Oil tank constantly during operation by a constant Airflow cooled. So you are able to use forces and Feed speeds on press jaws and other devices to be able to determine as required. This fact in turn opens up further technical development opportunities and areas of application in the field of solderless line connections and other technical processes.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Clamps And Clips (AREA)
  • Automatic Assembly (AREA)
  • Manufacturing Of Electrical Connectors (AREA)

Claims (9)

  1. Dispositif électrohydraulique destiné à comprimer des jonctions tubulaires servant à confectionner des liaisons entre fils exemptes de soudures, comprenant une partie motorisée contenant un corps (1.4) de boítier cylindrique qui contient un piston de travail, avec fixation (1.5) des mâchoires de compression contre la face frontale du corps de boítier, une poignée (1.1) avec interrupteur de déclenchement (1.2), et des conduites de commande ainsi que d'alimentation (5.1, 5.2) qui sont reliées à une partie génératrice (4.2) du dispositif agencée distante, laquelle partie génératrice contient un circuit hydraulique pilotée par un circuit électrique, caractérisé en ce que le corps (1.4) du boítier présente une poignée de retenue (1.1) située au-dessus du centre d'application des charges de la partie motorisée du dispositif et que l'interrupteur de déclenchement (1.2) est intégré avec les éléments de contrôle et de surveillance (1.3) dans la poignée de retenue (1.1).
  2. Dispositif électrohydraulique selon la revendication 1, caractérisé en ce que les éléments de contrôle et de surveillance (1.3) se trouvent dans le champ de vision de la personne utilisatrice et que l'interrupteur de déclenchement (1.2), lorsqu'en mode de travail, se laisse actionner du pouce droit ou gauche de la personne utilisatrice.
  3. Dispositif électrohydraulique selon la revendication 1 ou 2, caractérisé en ce que l'interrupteur de déclenchement (1.2) est disposé en dehors de la zone d'accès (1.6) de la poignée de retenue (1.1).
  4. Dispositif éledrohydraulique selon l'une des revendications précédentes, caractérisé en ce que le corps (1.4) du boítier peut basculer dans la poignée de retenue (1.1) et qu'il est configuré pour pourvoir servir dans toute position de basculement.
  5. Dispositif électrohydraulique selon la revendication 4, caractérisé en ce que la prise du raccord (1.9, 5.3) équipant le flexible d'alimentation hydraulique (5.1) a été configurée de façon à pouvoir tourner par rapport au corps du boítier.
  6. Dispositif électrohydraulique selon rune des revendications précédentes, caractérisé par une fixation d'outil (2.2, 2.3) servant serrer de façon immobile le dispositif dans un établi en vue d'un fonctionnement en poste fixe, et équipé de son propre interrupteur de déclenchement (2.1), d'éléments de contrôle (2.6) et d'une prise de liaison (2.7) servant à recevoir la ligne de commande (5.2).
  7. Dispositif électrohydraulique selon la revendication 6, caractérisé en ce que la fixation d'outil (2.2, 2.3) présente deux éléments de retenue et de bridage reliés en chamière et servant à recevoir et à immobiliser la poignée de retenue du dispositif.
  8. Dispositif électrohydraulique selon rune des revendications précédentes, caractérisé en ce que la technique d'entraínement et de commande du dispositif est agencée dans une mallette protectrice (4.2) transportable.
  9. Dispositif électrohydraulique selon la revendication 8, caractérisé en ce qu'au moins une partie motorisée du dispositif est reliée avec la technique d'entraínement et de commande (4.2).
EP99109123A 1998-06-12 1999-05-08 Dispositif électro-hydraulique pour le sertissage de raccords de tuyaux Expired - Lifetime EP0963815B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19826110 1998-06-12
DE19826110A DE19826110A1 (de) 1998-06-12 1998-06-12 Elektrohydraulische Vorrichtung zum Verpressen von Rohrverbindungen

Publications (3)

Publication Number Publication Date
EP0963815A2 EP0963815A2 (fr) 1999-12-15
EP0963815A3 EP0963815A3 (fr) 2001-05-02
EP0963815B1 true EP0963815B1 (fr) 2004-07-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP99109123A Expired - Lifetime EP0963815B1 (fr) 1998-06-12 1999-05-08 Dispositif électro-hydraulique pour le sertissage de raccords de tuyaux

Country Status (3)

Country Link
EP (1) EP0963815B1 (fr)
AT (1) ATE271445T1 (fr)
DE (2) DE19826110A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20113238U1 (de) 2001-08-09 2001-11-22 Rothenberger Werkzeuge AG, 65779 Kelkheim Handwerkzeug mit einem elektrohydraulischen Antriebsteil und einem Arbeitskopf
DE102004005558B4 (de) * 2004-01-31 2006-04-20 Michael Birk Presszangenkopf und Presswerkzeug
DE102008057424B4 (de) * 2008-11-12 2010-09-02 Interprecise Donath Gmbh Vorsatzvorrichtung für eine Rohrpressmaschine
DE102011052852A1 (de) 2011-08-19 2013-02-21 Gustav Klauke Gmbh Pressvorrichtung
WO2019122243A1 (fr) * 2017-12-21 2019-06-27 WS Wieländer + Schill Engineering GmbH & Co. KG Outil hydraulique pour un dispositif de traction et/ou de pressage
US11236849B2 (en) 2019-09-04 2022-02-01 Techtronic Cordless Gp Pressing tool and method for a re-pressing operation
DE102020115060A1 (de) 2020-06-05 2021-12-09 Joiner's Bench Gmbh Leitungselement, Pressgerät, Presswerkzeug, Erfassungseinrichtung für ein Pressgerät und Verfahren zur Herstellung einer Verbindung

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE455055B (sv) * 1986-10-27 1988-06-20 Kurt Moberg Verktyg for vikning av en fran en yta utskjutande platflik
US4790218A (en) * 1987-11-19 1988-12-13 Cabrera Leonel M Rotary socket wrench
US5125324A (en) * 1988-02-10 1992-06-30 Daia Industry Co. Ltd. Portable hydraulically operated device incorporating automatic drain valve
US5216848A (en) * 1988-10-04 1993-06-08 Stripping Technologies Inc. Dual controls for an abrasive blast system
DE3835696C2 (de) * 1988-10-20 1993-12-23 Pfisterer Elektrotech Karl Tragbare Presse zur Herstellung von Preßverbindungen
GB2237836B (en) * 1989-11-08 1993-09-29 Draftex Ind Ltd Apparatus for fitting flexible strips
US5813805A (en) * 1996-08-29 1998-09-29 Kopras; Robert K. Spiral cutting tool with detachable handle

Also Published As

Publication number Publication date
ATE271445T1 (de) 2004-08-15
EP0963815A3 (fr) 2001-05-02
DE19826110A1 (de) 1999-12-23
DE59909989D1 (de) 2004-08-26
EP0963815A2 (fr) 1999-12-15

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