EP1519813B1 - Appareil de pressage electrohydraulique - Google Patents

Appareil de pressage electrohydraulique Download PDF

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Publication number
EP1519813B1
EP1519813B1 EP03722408A EP03722408A EP1519813B1 EP 1519813 B1 EP1519813 B1 EP 1519813B1 EP 03722408 A EP03722408 A EP 03722408A EP 03722408 A EP03722408 A EP 03722408A EP 1519813 B1 EP1519813 B1 EP 1519813B1
Authority
EP
European Patent Office
Prior art keywords
electric motor
pressing device
pump
pressing
switch
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
EP03722408A
Other languages
German (de)
English (en)
Other versions
EP1519813A2 (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
Original Assignee
Gustav Klauke GmbH
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 Gustav Klauke GmbH filed Critical Gustav Klauke GmbH
Publication of EP1519813A2 publication Critical patent/EP1519813A2/fr
Application granted granted Critical
Publication of EP1519813B1 publication Critical patent/EP1519813B1/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
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/005—Hydraulic driving means
    • 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
    • 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
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • B25B27/146—Clip clamping hand tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/02—Construction of casings, bodies or handles
    • 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
    • H01R43/0428—Power-driven hand crimping tools

Definitions

  • the invention relates to an electro-hydraulic pressing device according to the features of the preamble of claim 1.
  • the invention provides the task of specifying a handling technology favorable pressing device.
  • the rod-shaped pressing device can be ergonomically held like a tool with one hand.
  • the operating switch is ergonomically favorable working head side of the electric motor and thus preferably arranged index finger or thumb operable. Furthermore, it proves to be advantageous in terms of handling that a central axis of the grip area facing in overlap with the electric motor central axis or parallel to it points in the direction of the working head of the pressing device.
  • the operating switch is arranged one to four fingers away from an end face of the electric motor.
  • the actuator holder is easily accessible without the hand carrying the device having to be moved from the original place.
  • a one-sided broadening of the device is formed at the end opposite the working head.
  • a rolling obstacle is formed on the housing side. It proves to be particularly advantageous that the broadening is partially formed by an accumulator and also partly by the housing-side receiving area for the accumulator.
  • the broadening is formed cantilevered to the side on which the actuating switch is formed, whereby the widening protects the actuating switch when the device is stored against accidental operation.
  • the extent to which the widening projects beyond the tubular construction, in particular in the grip region, of the cross-sectional configuration of the housing corresponds approximately to one to two thirds of the handle region diameter.
  • it proves to be an essential advantage that the central axis of the electric motor is aligned with the axis of a pump tappet.
  • a hydraulic tank is arranged approximately annularly surrounding the pump tappet and / or the return valve, with which short flow paths for the hydraulic oil are achieved.
  • the accumulator can be plugged in the axial direction of the electric motor, further a center axis of a battery plug projection or a central axis of the housing side receiving aligned with the central axis of the electric motor.
  • a central axis of the working head receptacle is aligned in alignment with a central axis of the electric motor.
  • the Verpress in a preferred embodiment of the Verpress advocatess the central axis of the working head, the axis of the pump plunger in the pump, a central axis of the transmission and the center axis of the electric motor and the center axis of the accumulator plug projection are aligned with each other, so that by this linear sequential arrangement of individual modules a substantially rod-shaped, ergonomically favorable and one-handed operation supporting configuration of the pressing device is achieved.
  • Fig. 1 a suitable for one-handed operation electro-hydraulic pressing device 1 for the operation of different Pressing tools 2.
  • the latter are used for pressing pipe fittings, cable lugs or the like.
  • the pressing device 1 is substantially elongate rod-shaped, which supports the one-handed operation of the device.
  • This rod-shaped configuration is achieved in that the individual modules are positioned in the housing 3 of the device 1 in axial succession arrangement.
  • an electric motor 4 is provided approximately in the middle region, whose center axis y is aligned in alignment with the housing axis x.
  • the housing 3 forms a grip area 5, the housing diameter being selected ergonomically in this grip area 5
  • the electric motor 4 is fed by an accumulator 6 which can be plugged in the axial direction of the electric motor 4.
  • the center axis u of the accumulator plug projection 8 which can be inserted into a corresponding housing receptacle 8 is positioned in alignment with the motor axis y on the housing axis x.
  • the inserted accumulator 6 is non-locking, including a, attached to a resilient arm 9 locking projection 10, a correspondingly positioned opening of the accumulator receptacle 7 by passing, engages in a recess 11 of the male projection 8.
  • This safety catch can be canceled by means of a rocker-like locking button 13 displaceable about an axle body 12 oriented transversely to the longitudinal extension of the pressing device 1.
  • the locking button 13 By depressing this locking button 13, the locking projection 10 is pivoted out of the locking receptacle 11, after which the accumulator 6 can be removed.
  • the electrical contact of the accumulator 6 is not dargesiellt. Between the latter and the electric motor 4 is both electrically and, based on the arrangement within the housing 3, a circuit board 14 interposed locally, which carries a switch 15 and optionally other electronic assemblies.
  • a working piston 16 is moved in a known manner in the pressing device 1 via an oil pressure counter to the force of a piston return spring 17, for displacement of a movable jaw of the pressing tool 2, working piston 16 and piston return spring 17 are part of the pressing tool. 2
  • the transmission 19 consists essentially of a arranged in a circular cylindrical casing 22 lower raceway body 23, an upper raceway body 24 and two arranged between the raceway bodies 23 and 24, held in a cage 25 output rotary bodies 26 together.
  • raceway body 23 and 24 coaxially aligned with the motor shaft 18 of the electric motor 4, rotatably held in the shell casing 22.
  • Each raceway body 23, 24 has raceways 27, 28 which face each other.
  • the output rotary body 26 are arranged, which are disc-shaped, wherein the rotational axes of the output rotary body 26 are aligned parallel to the central axis y of the electric motor or to the central axis v of the transmission 19th
  • the driven rotary bodies 26 cooperate on both sides with their circumferential marginal edges with the respective associated raceways 27, 28 of the raceway bodies 23, 24.
  • the driven rotary bodies 26 are held in a cage 25 such that they are diametrically opposed with respect to the motor shaft 18.
  • the motor shaft 18 passes through the bottom of the lower raceway body 23 and centrally the cage 25, wherein a motor shaft end protrudes rearward of the cage 25 via this.
  • the rotary bodies 26 each have a shaft engagement surface formed by the peripheral lateral surface. These are, as well as the surface of the motor shaft 18, smooth surface formed, after which the interaction of the motor shaft 18 and rotating bodies 26 is frictionally engaged.
  • raceways 27, 28 of the two raceway bodies 23, 24 extend inclined towards the motor shaft 18, wherein the raceway 27 of the lower raceway body 23 in cross section with the central axis y of the electric motor 4 to the motor-side end of the motor shaft 18 as viewed at an acute angle and the track 28th of the upper raceway body 24 also viewed in cross section with the central axis y of the electric motor 4 towards the free end of the motor shaft 18 also includes an acute angle. These acute angles are about 45 °.
  • the raceway 27 of the lower raceway body 23 is, based on a floor plan, milled from the raceway body 23 according to a circular shape. according to of which the raceway engagement surfaces of the rotary bodies 26 cooperate with a circular orbit of the lower raceway 27.
  • the raceway 28 of the upper raceway body 24, however, is made, for example, by means of a cutter deviating from a circular shape, so that an elliptical floor plan of the upper track 28 results, this at constant cone angle to the motor shaft 18.
  • the prestressing results in a height-wise adaptation of the upper raceway body 24 by axial displacement thereof in the course of the revolution of the rotary body 26 driven by the motor shaft 18.
  • the continuous rotation of the rotary body 26 causes correspondingly an oscillating movement of the upper raceway body 24 and also the spring-loaded on the upper race body 24 supporting pump plunger 21. Accordingly, the gear 19 to be assigned career body 24 forms at the same time a part of the pump 20.
  • the already mentioned working piston 16 is subjected to oil pressure via a valve arrangement (not shown).
  • the working piston 16 is in this case in a cylindrical receptacle of a Verpressered working head 30, wherein the central axis w of the hollow cylindrical, provided with an external threaded working head 30 is aligned with the central axis y of the electric motor 4 and thus aligned with the other modules and the main axis x ,
  • a return valve 31 is provided, which at one end is line connected to the pressure chamber 32 in front of the working piston 16.
  • This return valve 31 opens automatically when a predefined pressure in the pressure chamber 32 is exceeded and opens a path to the, the pump 20 or
  • the hydraulic piston 33 is correspondingly arranged in the immediate vicinity of the pump 20 on the side facing away from the electric motor 4 of the transmission 19.
  • the opening of the check valve 31 causes via the piston return spring 17 a provision of the working piston 16 in the unloaded basic position.
  • the return valve 31 is also manually triggered.
  • the return valve 31 designed as a return slide emergency switch 34 is provided which displaces the valve lifter 36 against the force of the plunger 36 in the locking position acting on compression spring 37 at a push operation via a driver 35.
  • pivotal actuating switch 39 is provided, which can press finger-operated against the force of a supported on the shell 22 of the transmission 19 compression spring 40 ,
  • the button-type actuation switch 39 is in this case arranged on the working head side of the electric motor 4 in the region of the transmission 19 and acts via a, led past the electric motor 4 shift lever 41 on the arranged on the circuit board 14 a switch 15.
  • the pressing device 1 is designed substantially elongate rod-shaped.
  • the electric motor 4 comprehensive handle portion 5 is formed in the center of gravity of the device 1 and extends approximately from the working head end of the electric motor 4 is substantially cylindrical in the area of the accumulator receptacle 7.
  • the housing 3 goes over into a one-sided widening 42, which widening 42 is partially formed by the accumulator 6.
  • This widening 42 projects to the side on which the operation switch 39 is formed. According to this embodiment, a rolling obstacle is created.
  • a radially encircling extension zone 43 comprising the hydraulic tank 33, is also provided, with reference to the grip region 5, thus counteracting slippage of the actuating hand 5 grasping the grip region 5 in the direction of the working region
  • the actuation switch 39 is placed in such a way that it is arranged approximately one to four fingers away from the working-head-side end face of the electric motor 4 and thus can be easily reached by the index finger of the actuating hand.
  • the opposite emergency switch 34 can be detected by the thumb of the same hand.
  • a first embodiment of such a pressing tool 2 is shown.
  • This is a C-shaped pressing tool with a linearly displaceable by the working piston 16 sliding jaw 44 and an opposite jaw 45.
  • Both jaws 44th and 45 carry press inserts 46, for example, for pressing a cable lug 47 on a cable end 48.
  • the working piston 16 is formed in two parts in such a way that a first section 50 provided with an oil pressure piston head telescopes into a hollow cylindrical second section 51, wherein the sections 50 and 51 are inserted through a section 51 in the second section and against the first section 50 supporting compression spring 52 are biased in an extended position.
  • This biased position is stop limited by the screw head one, the first portion 50 and the compression spring 52 centrally passing, screwed in the bottom portion of the second section 51 screw 53 (see FIG. Fig. 7 ).
  • the piston head 49 is enlarged in cross-section with respect to the second section 51 overlapping the first section 50 and carries, in a conventional manner, a ring seal 54 for sealing the pressure chamber 32 in a radially encircling groove.
  • piston head 49 together with the first subsection 50 assigned thereto, is supported via the piston return spring 17 against the bottom of the press tool side, the working piston 16 engaging around and provided with an internal thread counter-receptacle 55.
  • the second section 51 of the working piston 16 penetrates with its solid, the piston head 49 opposite end of the bottom of the counter-receptacle 55 and is connected to the sliding block 44, so that linear displacements of the second section 51 are transferred to the sliding jaw 44.
  • the division of the working piston 16 proves to be advantageous in that thereby the movable jaw -here the sliding jaw 44- of the pressing tool 2 first in a holding position as shown in FIG Fig. 8 is movable and can be held there before a further process in the injection position.
  • the pressing of the pressing device 1 is carried out by actuation of the actuation switch 39, whereupon the electric motor 4 via the gear 19, the oil pressure in the pressure chamber 32 increases, resulting in a linear displacement of the working piston 16 and the sliding block 44 over this result.
  • the two sections 50 and 51 initially remain due to the provided compression spring 52 in its extended position.
  • Halt- position shown by manually pressing the operating switch of the pressing process is manually interrupted. If this holding position is not desired, the user can omit the repeated actuation of the actuating switch 39, whereupon the pressing operation is carried out continuously without any intermediate stop. If the persistence in the stop position according to Fig.
  • the pressing process can be continued by pressing the operating switch 39 again, wherein after a driving against each other of the end portion 56 of the second section 51 against the end face 57 of the first section 50 of the working piston 16 against the force of the piston return spring 17 in the injection position according to Fig. 9 is relocated further.
  • the return valve 31 of the pressing device 1 opens automatically, whereupon the working piston 16, supported by the piston return spring 17, is moved back into the basic position and the sections 50 and 51 caused by the action of the compression spring 52 also in their spaced position be shifted to each other.
  • a pressing tool 2 is shown in a second embodiment.
  • This pressing tool 2 can also be arranged on a pressing device 1 as described above.
  • subsections 50, 51 for forming the working piston 16 are also provided in this pressing tool 2, which subsections 50, 51 mesh telescopically and are vorgesparunt via a compression spring 52 in a disassembled position.
  • the pressing tool 2 is formed like a beak head with a fixed jaw 45 carrying a press insert 46 and a pivotally mounted, likewise a press insert 46 bearing pivoting jaw 58.
  • This swivel jaw 58 is connected to the working piston 16 and with its second portion 51 connected and acting on the legs of the pivoting jaw 58 lever 59 from a basic position according to Figure 12 in an injection position according to Fig. 14 schwenkverlagert, whereby here as shown in Fig. 13 a holding position is provided, in which the workpiece to be clamped, here also a cable lug 47, is clamped between the press inserts 46.
  • this is achieved by telescoping telescoping of the two sections 50 and 51 of the working piston 16. Only after striking the end face 57 of the first section 50 against the end portion 56 of the second section 51 is-preferably by pressing the operating switch 39- again Further displacement of the pivoting jaw 58 in the injection position according to Figure 14 reachable.
  • Fig. 15 and 16 show a further embodiment of a pressing tool 2, which is provided against the previously described embodiments with a one-piece piston 16 Accordingly, no holding position in this pressing tool 2 is provided.
  • By increasing the oil pressure of the working piston 16 is displaced against the piston return spring 17 from the basic position continuously to the injection position.
  • a linearly displaceable, connected to the working piston 16 sliding jaw 44 is provided with a press insert 46, which is displaced against a jaw 45 with press insert 46.
  • the jaw 45 is initially swung around an axis 60. After attachment of the pivotable about the axis 60, L-shaped leg of the jaw 45 is pivoted back into its working position and held by means of a pivot axis 62 about a further axis arranged opposite the other axis 61 schwenkverlagerbaren 62.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Press Drives And Press Lines (AREA)
  • Shearing Machines (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Jigs For Machine Tools (AREA)
  • Manipulator (AREA)

Claims (2)

  1. Appareil de pressage (1) électrohydraulique, convenant pour une manoeuvre d'une seule main, avec une tête de travail (30), un moteur électrique (4), une pompe (20), un réservoir hydraulique (33) et une transmission (19) entre le moteur électrique (4) et la pompe (20), une zone de préhension (5), à entourer d'une main, à laquelle est associé un interrupteur d'actionnement (39), étant prévue, la zone de préhension étant réalisée en entourant le moteur électrique, et l'interrupteur d'actionnement étant disposé du côté tête de travail du moteur électrique, caractérisé en ce que l'appareil de pressage est réalisé en forme de barre allongée, et en ce que le moteur électrique, la transmission et la pompe sont installés axialement les uns derrière les autres, en ce que la zone de préhension (5) est réalisée au centre de gravité de l'appareil de pressage, et en ce que l'interrupteur d'actionnement (39) agit sur un interrupteur (15), par l'intermédiaire d'un levier de commutation (41) guidé sur le moteur électrique.
  2. Appareil de pressage électrohydraulique selon la revendication 1, caractérisé en ce que l'interrupteur d'actionnement (39) est disposé à distance, large de la valeur de un à quatre doigts, d'une face frontale du moteur électrique (4).
EP03722408A 2002-04-10 2003-04-07 Appareil de pressage electrohydraulique Expired - Lifetime EP1519813B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10216213A DE10216213A1 (de) 2002-04-10 2002-04-10 Elektrohydraulisches Verpressgerät und Verfahren zum Betreiben desselben
DE10216213 2002-04-10
PCT/EP2003/003586 WO2003084719A2 (fr) 2002-04-10 2003-04-07 Appareil de pressage electrohydraulique et procede pour faire fonctionner un tel appareil

Publications (2)

Publication Number Publication Date
EP1519813A2 EP1519813A2 (fr) 2005-04-06
EP1519813B1 true EP1519813B1 (fr) 2012-05-09

Family

ID=28458762

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03722408A Expired - Lifetime EP1519813B1 (fr) 2002-04-10 2003-04-07 Appareil de pressage electrohydraulique

Country Status (9)

Country Link
US (3) US7254982B2 (fr)
EP (1) EP1519813B1 (fr)
CN (1) CN100369714C (fr)
AT (1) ATE556821T1 (fr)
AU (1) AU2003229616A1 (fr)
DE (2) DE10216213A1 (fr)
ES (1) ES2384251T3 (fr)
RU (1) RU2317190C2 (fr)
WO (1) WO2003084719A2 (fr)

Cited By (3)

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WO2019068608A1 (fr) 2017-10-02 2019-04-11 Gustav Klauke Gmbh Outil à main
DE102018114014A1 (de) 2018-06-12 2019-12-12 Gustav Klauke Gmbh Zur Fernbedienung vorbereitetes Handwerkzeug sowie zur Fernbedienung vorbereitetes Werkzeug
WO2021069587A1 (fr) 2019-10-11 2021-04-15 Gustav Klauke Gmbh Tête de dispositif d'un outil à commande hydraulique

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US20070180887A1 (en) 2007-08-09
US7421877B2 (en) 2008-09-09
US20070214860A1 (en) 2007-09-20
ES2384251T3 (es) 2012-07-03
WO2003084719A2 (fr) 2003-10-16
US20050120770A1 (en) 2005-06-09
AU2003229616A1 (en) 2003-10-20
DE20321647U1 (de) 2008-10-16
US7254982B2 (en) 2007-08-14
EP1519813A2 (fr) 2005-04-06
US7412868B2 (en) 2008-08-19
WO2003084719A3 (fr) 2004-04-01
ATE556821T1 (de) 2012-05-15
CN100369714C (zh) 2008-02-20
RU2004133027A (ru) 2005-05-10
RU2317190C2 (ru) 2008-02-20
AU2003229616A8 (en) 2003-10-20
DE10216213A1 (de) 2003-10-23

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