EP0403536B1 - Device for producing electrically conductive connections - Google Patents

Device for producing electrically conductive connections Download PDF

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Publication number
EP0403536B1
EP0403536B1 EP89903466A EP89903466A EP0403536B1 EP 0403536 B1 EP0403536 B1 EP 0403536B1 EP 89903466 A EP89903466 A EP 89903466A EP 89903466 A EP89903466 A EP 89903466A EP 0403536 B1 EP0403536 B1 EP 0403536B1
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EP
European Patent Office
Prior art keywords
switch
housing
head
disposed
jaws
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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
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EP89903466A
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German (de)
French (fr)
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EP0403536A1 (en
Inventor
Herbert SCHÜLE
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Individual
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Individual
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    • 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
    • H01R43/048—Crimping apparatus or processes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49174—Assembling terminal to elongated conductor
    • Y10T29/49181—Assembling terminal to elongated conductor by deforming
    • Y10T29/49185—Assembling terminal to elongated conductor by deforming of terminal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/5313—Means to assemble electrical device
    • Y10T29/532—Conductor
    • Y10T29/53209—Terminal or connector
    • Y10T29/53213—Assembled to wire-type conductor
    • Y10T29/53235—Means to fasten by deformation

Definitions

  • the invention relates to a device for producing electrically conductive connections between two or more conductive members.
  • Devices of the type mentioned at the beginning are used regularly for the solderless connection of crimp connectors with and without insulation and of crimp connectors.
  • the devices can also be designed as pneumatic pressing devices with pressing heads, which can be easily handled by the user, and in which the working cylinder is integrated in the handle of the pressing device.
  • An end sleeve with a plastic collar can then be inserted into the press head of these devices, for example, and the desired connection is established after the device is switched on. Since the depth of the press head and the length of the wire end sleeves can be different, it is not always ensured in the known devices, such as are described, for example, in US Pat. No. 3,492,846, that the wire end sleeves are pressed or squeezed at the desired locations.
  • US Pat. No. 3,492,541 discloses a device for producing electrically conductive connections, which, however, is not suitable for properly connecting wire end sleeves to metal sleeves.
  • the invention has for its object to develop the known device without undue design effort so that the initiation of the crimping process takes place only when the ferrule has taken the desired position with respect to the press head.
  • the switch carried by the carrier or the housing is arranged in front of the tool head with respect to the direction of movement of the link and that the link which can be inserted into the tool head has a thickening or extension which can be actuated by the switch.
  • the invention is achieved in any case if the switch is arranged in such a way that on the one hand the positioning of the wire end sleeve within the press head can be optimized and on the other hand the actual work process (pressing or squeezing) is only initiated when this position was actually achieved.
  • a particularly expedient embodiment of the invention provides in a device which is arranged in a housing that an opening is formed in the housing which is aligned with the receptacle defined by the effective position of the jaws.
  • the switch is an elastic and plate-shaped body with a slot, the Width of the slot corresponds to the maximum width of the metal sleeve, and when the switch is actuated by sleeve insulation pressure.
  • the press head which can be releasably connected to the housing has a working cylinder which is integrated in it and can be pressurized with compressed air.
  • the pressing head is part of a pressing tongs whose movable jaw works together with a firing pin. It is expedient if the firing pin is arranged coaxially in a magnetic coil and can be actuated by the magnetic field.
  • one end of the bolt facing the jaw carries a striking head, while the other end cooperates with a return spring.
  • the power of the bolt is to be adjustable, then it is expedient if the firing pin is mounted within a plurality of magnets arranged coaxially to one another, each of which can be excited separately.
  • an electrical pressure device for pressing multi-wire conductor ends with a metal sleeve 1 with and without insulation and crimp connectors is shown. It consists of a housing 8 in which a press head 9 with two jaws 14 and 16 is arranged. The jaw 16 is connected in an articulated manner to the jaw 14, specifically by means of a bolt 18. The lower jaw 14 is connected to an arm 20 which is firmly connected to the housing 8. The upper jaw 16 works with a return spring 22 together. Above the upper jaw 16 there is a firing pin 24 which can be moved back and forth in a magnetic coil 26 in the direction of the double arrow 28.
  • the lower, the upper jaw 16 facing end of the firing pin 24 carries a head 30 which strikes the magnetic coil 26 against the upper jaw 16 so that the press head 9 closes.
  • the other, upper end 3 of the firing pin 24 works together with a return spring 34 and a shock absorber 36.
  • an opening 40 tapering towards the press head is formed, into which the ferrule 12 of the link 10 can be inserted.
  • An elastically deformable actuating plate 42 for a switch is arranged between the opening 40 and the two jaws 14 and 16. This switch is electrically connected to a control device 46 via a line 44.
  • the control device 46 is connected to the magnet coil 26 via a line 48.
  • the solenoid 26 is not yet energized, this only takes place when the wire end sleeve 12 is inserted into the opening 40 and between the jaws 14 and 16 or jaws 82 and 84 (FIG. 3). Since the actuating plate 42 has a slot 50 for the switch, the width of which is greater than the maximum diameter of the metal sleeve 1 and smaller than the thickness of the wire end sleeve 12, the switch is only inserted after the metal sleeve 1 has been completely inserted between the jaws 14 and 16 or 82 and 84 and actuation of the actuating plate 42 actuated by the ferrule 12. After the blow has taken place, the firing pin 24 immediately returns to its starting position. The electromagnet 26 can no longer be actuated. The pressed ferrule 10 can be pulled out of the opening 40.
  • FIG 3 and 4 show that the firing pin 24 is excited by a plurality of magnets 26, 26 ', 26' '. These electromagnets are not effective at the same time. Switching them on and off depends on the thickness of the metal sleeves. Depending on this, the control electronics regulate the impact strength and thus the pressing pressure.
  • wire end sleeves with a small but also with a considerably larger diameter can be pressed with the same device. If the pressed sections of the wire end sleeves are not constant, then the pressing can be triggered by the actuating plate 42 projecting laterally.
  • the jaws 14 and 16 are interchangeable.
  • the jaws 82 and 84 are not attached. Rather, they move in parallel.
  • the jaws 82 and 84 are formed in the drawing so that trapezoidal pressings are possible.
  • the jaws 82 and 84 are interchangeable, have a projection 87 or a recess 86 which is complementary to the projection 87 and can be changed as required.
  • a further switch 80 can be arranged in the housing, by means of which it can be achieved that the same end section is always squeezed in the end sleeves. Finally, it is also possible to arrange the control device 46 outside the housing.
  • the end of the line is stripped and carries the wire end sleeve 12 and the metal sleeve 1.
  • the end face 4 of the wire end sleeve 12 facing the opening 40 tapers.
  • the opening 40 is trapezoidal in cross section, which facilitates the insertion of the metal sleeve 1 between the jaws 14 and 16.
  • the body 96 Between the jaws 14 and 16, of which the jaw 14 is stationary, and the body 96 has a gap 92 which is dimensioned such that the actuating plate 42 can be pivoted.
  • the upper end 93 of the actuating plate 42 is fixedly connected to the body 96.
  • a recess 90 is formed in the body 96, so that the actuating plate 42 can also be actuated with a finger of the user (cf. Fig. 6). This makes it possible to squeeze only a certain area of the metal sleeve 1.
  • a guide bore 94 and a recess 95 are provided in the body 96, while the upper jaw 16 has a recess 97 for the lower end of the firing pin 24.
  • FIG. 6 shows the actuation of the actuating plate 42 by means of a finger of the user, while the switching process according to FIG. 7 takes place through the wire end sleeve 12.
  • the wire end sleeve 12 is dimensioned with respect to the opening 50 so that it cannot be pulled through the opening 50.
  • the plunger 91 When pressing the wire end sleeve 12 against the actuating plate 42, this is pressed against the plunger 91 so that it switches on the control device 46.
  • the metal sleeve can be pulled out of the jaws.
  • the actuating plate 42 assumes its position shown in FIG. 5.
  • a recess 99 which extends in the axial direction of the metal sleeve 1, is also provided in the body 96, so that metal sleeves of different lengths can be pressed.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Electrical Connectors (AREA)

Abstract

A device for producing electrically conductive connections between two or more conductive elements with direct contact by pressing or crimping comprises an electrically or pneumatically driven toolhead, in particular a pressure head with two jaws, supported by a carrier or arranged in a housing, a switching or control device, and a switch actuated by an element which can be inserted in the toolhead. The switch supported by the carrier or the housing is arranged in front of the toolhead in relation to the direction of motion of the element. The element which can be inserted in the toolhead has a thickening or expansion which actuates the switch.

Description

Die Erfindung betrifft eine Vorrichtung zum Herstellen elektrisch leitender Verbindungen zwischen zwei oder mehreren leitenden Gliedern nach dem Oberbegriff des Anspruches 1.The invention relates to a device for producing electrically conductive connections between two or more conductive members.

Vorrichtungen der eingangs genannten Art, auch elektrische oder pneumatische Anpreßgeräte genannt, dienen regelmäßig zur lötfreien Verbindung von Quetschverbindern mit und ohne Isolation sowie von Crimp-Verbindern. Die Vorrichtungen können auch als pneumatische Preßgeräte mit Preßköpfen ausgebildet sein, die vom Benutzer einfach gehandhabt werden können, und bei denen der Arbeitszylinder im Handgriff des Preßgerätes integriert ist. In den Preßkopf dieser Geräte kann dann z.B. eine Aderendhülse mit Kunststoffkragen eingesteckt werden, und nach Einschalten des Gerätes wird die gewünschte Verbindung hergestellt. Da die Tiefe des Preßkopfes und die Länge der Aderendhülsen verschieden sein kann, ist bei den bekannten Vorrichtungen, wie sie z.B. in der US-PS 3,492,846 beschrieben sind, nicht immer gewährleistet, daß die Aderendhülsen an den gewünschten Stellen verpreßt oder gequetscht werden. Schließlich ist in der US-PS 3 492 541 eine Vorrichtung zum Herstellen elektrisch leitender Verbindungen offenbart, die jedoch nicht dazu geeignet ist, Aderendhülsen mit Metallhülsen ordnungsgemäß zu verbinden.Devices of the type mentioned at the beginning, also called electrical or pneumatic pressure devices, are used regularly for the solderless connection of crimp connectors with and without insulation and of crimp connectors. The devices can also be designed as pneumatic pressing devices with pressing heads, which can be easily handled by the user, and in which the working cylinder is integrated in the handle of the pressing device. An end sleeve with a plastic collar can then be inserted into the press head of these devices, for example, and the desired connection is established after the device is switched on. Since the depth of the press head and the length of the wire end sleeves can be different, it is not always ensured in the known devices, such as are described, for example, in US Pat. No. 3,492,846, that the wire end sleeves are pressed or squeezed at the desired locations. Finally, US Pat. No. 3,492,541 discloses a device for producing electrically conductive connections, which, however, is not suitable for properly connecting wire end sleeves to metal sleeves.

Ausgehend von den obigen Stand der Technik liegt der Erfindung die Aufgabe zugrunde, die bekannte Vorrichtung ohne unangemessenen konstruktiven Aufwand so weiterzubilden, daß die Einleitung des Quetschvorganges erst dann stattfindet, wenn die Aderendhülse die gewünschte Lage mit Bezug auf den Preßkopf eingenommen hat.Based on the above prior art, the invention has for its object to develop the known device without undue design effort so that the initiation of the crimping process takes place only when the ferrule has taken the desired position with respect to the press head.

Die gestellte Aufgabe wird erfindungsgemäß dadurch gelöst, daß der vom Träger oder dem Gehäuse getragene Schalter mit Bezug auf die Bewegungsrichtung des Gliedes vor dem Werkzeugkopf angeordnet ist und daß das in den Werkzeugkopf einsteckbare Glied eine den Schalter betätigbare Verdickung oder Erweiterung besitzt.The object is achieved according to the invention in that the switch carried by the carrier or the housing is arranged in front of the tool head with respect to the direction of movement of the link and that the link which can be inserted into the tool head has a thickening or extension which can be actuated by the switch.

Man erkennt, daß die Erfindung jedenfalls dann verwirklicht ist, wenn der Schalter so angeordnet ist, daß zum einen die Positionierung der Aderendhülse innerhalb des Presskopfes optimiert werden kann und zum anderen der eigentliche Arbeitsvorgang (Verpressen oder Quetschen) erst dann eingeleitet wird, wenn diese Position tatsächlich erreicht wurde.It can be seen that the invention is achieved in any case if the switch is arranged in such a way that on the one hand the positioning of the wire end sleeve within the press head can be optimized and on the other hand the actual work process (pressing or squeezing) is only initiated when this position was actually achieved.

Weitere zweckmäßige und vorteilhafte Ausgestaltungen der Erfindung gehen aus den Unteransprüchen hervor.Further expedient and advantageous refinements of the invention emerge from the subclaims.

Eine besonders zweckmäßige Ausgestaltung der Erfindung sieht bei einer Vorrichtung, die in einem Gehäuse angeordnet ist, vor, daß im Gehäuse eine Öffnung ausgebildet ist, die mit der durch die wirksame Stellung der Backen definierten Aufnahme fluchtet. Bei einer Vorrichtung, die für Aderendhülsen mit Kunststoffkragen vorgesehen ist, ist es zweckmäßig, wenn der Schalter ein elastischer und plattenförmiger Körper mit einem Schlitz ist, wobei die Breite des Schlitzes der maximalen Breite der Metallhülse entspricht, und wenn der Schalter bei Druck durch Hülsenisolierung betätigt wird.A particularly expedient embodiment of the invention provides in a device which is arranged in a housing that an opening is formed in the housing which is aligned with the receptacle defined by the effective position of the jaws. In a device which is provided for wire end sleeves with a plastic collar, it is advantageous if the switch is an elastic and plate-shaped body with a slot, the Width of the slot corresponds to the maximum width of the metal sleeve, and when the switch is actuated by sleeve insulation pressure.

Eine weitere besonders zweckmäßige Ausgestaltung sieht vor, daß der mit dem Gehäuse lösbar verbindbare Presskopf einen in ihm integrierten und druckluftbeaufschlagbaren Arbeitszylinder besitzt.Another particularly expedient embodiment provides that the press head which can be releasably connected to the housing has a working cylinder which is integrated in it and can be pressurized with compressed air.

Eine weitere zweckmäßige Ausgestaltung der Erfindung sieht vor, daß der Presskopf Teil einer Presszange ist, deren bewegliche Backe mit einem Schlagbolzen zusammenarbeitet. Hierbei ist es zweckmäßig, wenn der Schlagbolzen in einer Magnetspule koaxial angeordnet und durch das Magnetfeld betätigbar ist.Another expedient embodiment of the invention provides that the pressing head is part of a pressing tongs whose movable jaw works together with a firing pin. It is expedient if the firing pin is arranged coaxially in a magnetic coil and can be actuated by the magnetic field.

Im Rahmen dieses Erfindungsgedankens ist es zweckmäßig, wenn das eine der Backe zugekehrte Ende des Bolzens einen Schlagkopf trägt, während das andere Ende mit einer Rückholfeder zusammenarbeitet.Within the scope of this inventive concept, it is expedient if one end of the bolt facing the jaw carries a striking head, while the other end cooperates with a return spring.

Soll die Leistung des Bolzens regulierbar sein, dann ist es zweckmäßig, wenn der Schlagbolzen innerhalb mehrerer, koaxial zueinander angeordneten Magneten gelagert ist, von denen jeder separat erregbar ist.If the power of the bolt is to be adjustable, then it is expedient if the firing pin is mounted within a plurality of magnets arranged coaxially to one another, each of which can be excited separately.

Zwei Ausführungsbeispiele der Erfindung sind in der Zeichnung schematisch dargestellt und werden im folgenden näher erläutert. Es zeigen

  • Fig. 1 in Seitenansicht eine Vorrichtung, bei der der Presskopf von einem schlagenden Bolzen betätigbar ist,
  • Fig. 2 eine Draufsicht auf eine Öffnung für die Aderendhülsen des Gehäuses in Richtung des Pfeiles II nach Fig. 1, vergrößert dargestellt,
  • Fig. 3 einen Axialschnitt durch einen anderen Magnetkörper und
  • Fig. 4 eine Seitenansicht des in Fig. 3 dargestellten Magnetkörpers,
  • Fig. 5 den Preßkopf der Vorrichtung nach Fig. 4 im Schnitt und vor dem Einstecken des Leiterendes,
  • Fig. 6 den in Fig. 5 dargestellte Preßkopf, wobei das Leiterende eingesteckt ist und das Auslösen des Preßvorganges durch einen Finger des Benutzers erfolgt,
  • Fig. 7 den in Fig. 5 dargestellten Preßkopf während des Preßvorganges,
  • Fig. 8 einen Schnitt entlang der Linie VIII-VIII nach Fig. 6 und
  • Fig. 9 einen Schnitt entlang der Linie IX-IX nach Fig. 7.
Two embodiments of the invention are shown schematically in the drawing and are explained in more detail below. Show it
  • 1 is a side view of a device in which the press head can be actuated by a striking pin,
  • 2 is a plan view of an opening for the ferrules of the housing in the direction of arrow II of FIG. 1, shown enlarged,
  • Fig. 3 shows an axial section through another magnetic body and
  • 4 is a side view of the magnetic body shown in FIG. 3,
  • 5 shows the press head of the device according to FIG. 4 in section and before inserting the conductor end,
  • 6 shows the press head shown in FIG. 5, the conductor end being inserted and the pressing process being triggered by a finger of the user,
  • 7 shows the press head shown in FIG. 5 during the pressing process,
  • Fig. 8 is a section along the line VIII-VIII of Fig. 6 and
  • 9 shows a section along the line IX-IX of FIG. 7.

In Fig. 1 ist ein elektrisches Anpreßgerät zum Verpressen von mehrdrahtigen Leiterenden mit einer Metallhülse 1 mit und ohne Isolation sowie von Crimp-Verbindern dargestellt. Es besteht aus einem Gehäuse 8, in dem ein Preßkopf 9 mit zwei Backen 14 und 16 angeordnet ist. Die Backe 16 ist mit der Backe 14 gelenkig verbunden, und zwar über einen Bolzen 18. Die untere Backe 14 ist mit einem mit dem Gehäuse 8 fest verbundenen Arm 20 verbunden. Die obere Backe 16 arbeitet mit einer Rückholfeder 22 zusammen. Oberhalb der oberen Backe 16 befindet sich ein Schlagbolzen 24, der in einer Magnetspule 26 in Richtung des Doppelpfeiles 28 hin und her bewegbar ist. Das untere, der oberen Backe 16 zugekehrte Ende des Schlagbolzens 24 trägt einen Kopf 30, der nach Erregung der Magnetspule 26 gegen die obere Backe 16 schlägt, so daß der Preßkopf 9 schließt. Das andere, obere Ende 3 des Schlagbolzens 24 arbeitet mit einer Rückholfeder 34 und einem Stoßdämpfer 36 zusammen. In dem Gehäuse 8 ist eine zu dem Preßkopf hin sich verjüngende Öffnung 40 ausgebildet, in die die Aderendhülse 12 des Gliedes 10 einsteckbar ist. Zwischen der Öffnung 40 und den beiden Backen 14 und 16 ist ein elastisch verformbares Betätigungsblech 42 für einen Schalter angeordnet. Dieser Schalter ist über eine Leitung 44 mit einer Steuerungseinrichtung 46 elektrisch verbunden. Die Steuerungseinrichtung 46 ist mit der Magnetspule 26 über eine Leitung 48 verbunden. Wird nun die Vorrichtung eingeschaltet, dann wird die Magnetspule 26 noch nicht erregt, dies erfolgt erst dann, wenn die Aderendhülse 12 in die Öffnung 40 und zwischen die Backen 14 und 16 bzw. Backen 82 und 84 (Fig. 3) gesteckt wird. Da das Betätigungsblech 42 einen Schlitz 50 für den Schalter besitzt, dessen Breite größer als der maximale Durchmesser der Metallhülse 1 und kleiner als die Dicke der Aderendhülse 12 ist, wird der Schalter erst nach vollständigem Einschieben der Metallhülse 1 zwischen die Backen 14 und 16 bzw. 82 und 84 und Betätigen des Betätigungsbleches 42 durch die Aderendhülse 12 betätigt. Nach erfolgtem Schlag geht der Schlagbolzen 24 sofort in seine Ausgangsstellung zurück. Der Elektromagnet 26 wird nicht mehr betätigt werden kann. Die verpresste Aderendhülse 10 kann aus der Öffnung 40 herausgezogen werden.In Fig. 1, an electrical pressure device for pressing multi-wire conductor ends with a metal sleeve 1 with and without insulation and crimp connectors is shown. It consists of a housing 8 in which a press head 9 with two jaws 14 and 16 is arranged. The jaw 16 is connected in an articulated manner to the jaw 14, specifically by means of a bolt 18. The lower jaw 14 is connected to an arm 20 which is firmly connected to the housing 8. The upper jaw 16 works with a return spring 22 together. Above the upper jaw 16 there is a firing pin 24 which can be moved back and forth in a magnetic coil 26 in the direction of the double arrow 28. The lower, the upper jaw 16 facing end of the firing pin 24 carries a head 30 which strikes the magnetic coil 26 against the upper jaw 16 so that the press head 9 closes. The other, upper end 3 of the firing pin 24 works together with a return spring 34 and a shock absorber 36. In the housing 8 an opening 40 tapering towards the press head is formed, into which the ferrule 12 of the link 10 can be inserted. An elastically deformable actuating plate 42 for a switch is arranged between the opening 40 and the two jaws 14 and 16. This switch is electrically connected to a control device 46 via a line 44. The control device 46 is connected to the magnet coil 26 via a line 48. If the device is now switched on, the solenoid 26 is not yet energized, this only takes place when the wire end sleeve 12 is inserted into the opening 40 and between the jaws 14 and 16 or jaws 82 and 84 (FIG. 3). Since the actuating plate 42 has a slot 50 for the switch, the width of which is greater than the maximum diameter of the metal sleeve 1 and smaller than the thickness of the wire end sleeve 12, the switch is only inserted after the metal sleeve 1 has been completely inserted between the jaws 14 and 16 or 82 and 84 and actuation of the actuating plate 42 actuated by the ferrule 12. After the blow has taken place, the firing pin 24 immediately returns to its starting position. The electromagnet 26 can no longer be actuated. The pressed ferrule 10 can be pulled out of the opening 40.

Die Fig. 3 und 4 zeigen, daß der Schlagbolzen 24 von mehreren Magneten 26,26',26'' erregt wird. Diese Elektromagneten werden nicht gleichzeitig wirksam. Ihr Ein- und Ausschalten hängt davon ab, welche Stärke die Metallhülsen besitzen. Davon abhängig wird durch die Steuerelektronik die Schlagstärke und somit der Pressdruck reguliert.3 and 4 show that the firing pin 24 is excited by a plurality of magnets 26, 26 ', 26' '. These electromagnets are not effective at the same time. Switching them on and off depends on the thickness of the metal sleeves. Depending on this, the control electronics regulate the impact strength and thus the pressing pressure.

Somit können mit gleichem Gerät nicht nur Aderendhülsen mit geringem, sondern auch mit einem erheblich größeren Durchmesser verpreßt werden. Sind die verpreßten Abschnitte der Aderendhülsen nicht konstant, dann kann die Pressung durch das seitlich überstehende Betätigungsblech 42 ausgelöst werden. Die Backen 14 und 16 sind auswechselbar.Thus, not only wire end sleeves with a small but also with a considerably larger diameter can be pressed with the same device. If the pressed sections of the wire end sleeves are not constant, then the pressing can be triggered by the actuating plate 42 projecting laterally. The jaws 14 and 16 are interchangeable.

In Fig. 3 sind die Backen 82 und 84 nicht angelengt. Sie bewegen sich vielmehr in einer Parallelführung. Die Backen 82 und 84 sind in der Zeichnung so ausgebildet, daß trapezförmige Pressungen möglich sind. Die Backen 82 und 84 sind auswechselbar, besitzen einen Vorsprung 87 bzw. eine zum Vorsprung 87 konplementäre Ausnehmung 86 und können nach Bedarf verändert werden. Im Gehäuse kann ein weiterer Schalter 80 angeordnet sein, durch den erreichbar ist, daß bei den Aderendhülsen immer derselbe Endabschnitt gequetscht wird. Schließlich ist es auch möglich, die Steuerungseinrichtung 46 außerhalb des Gehäuses anzuordnen.3, the jaws 82 and 84 are not attached. Rather, they move in parallel. The jaws 82 and 84 are formed in the drawing so that trapezoidal pressings are possible. The jaws 82 and 84 are interchangeable, have a projection 87 or a recess 86 which is complementary to the projection 87 and can be changed as required. A further switch 80 can be arranged in the housing, by means of which it can be achieved that the same end section is always squeezed in the end sleeves. Finally, it is also possible to arrange the control device 46 outside the housing.

Die Fig. 5 bis 7 verdeutlichen den Preßkopf. Das Ende der Leitung ist abisoliert und trägt die Aderendhülse 12 sowie die Metallhülse 1. Die der Öffnung 40 zugekehrte Stirnseite 4 der Aderendhülse 12 verjüngt sich. Die Öffnung 40 ist im Querschnitt trapezförmig, wodurch das Einführen der Metallhülse 1 zwischen die Backen 14 und 16 erleichtert wird. Zwischen den Backen 14 und 16, von denen die Backe 14 ortsfest ist, und dem Körper 96 ist ein Spalt 92 ausgebildet, der so bemessen ist, daß das Betätigungsblech 42 verschwenkbar ist. Das obere Ende 93 des Betätigungsbleches 42 ist mit dem Körper 96 fest verbunden. Im Bereich des unteren Endes des Betätigungsblechs 42, das im entspannten Zustand mit Abstand zum Stößel 91 des Schalters 100 angeordnet ist, ist im Körper 96 eine Ausnehmung 90 ausgebildet, so daß das Betätigungsblech 42 auch mit einem Finger des Benutzers betätigt werden kann (vgl. Fig. 6). Dadurch ist es möglich, nur einen bestimmten Bereich der Metallhülse 1 zu quetschen. Für den Schlagbolzen 24 ist im Körper 96 eine Führungsbohrung 94 und eine Ausnehmung 95 vorgesehen, während die obere Backe 16 eine Ausnehmung 97 für das untere Ende des Schlagbolzens 24 aufweist.5 to 7 illustrate the press head. The end of the line is stripped and carries the wire end sleeve 12 and the metal sleeve 1. The end face 4 of the wire end sleeve 12 facing the opening 40 tapers. The opening 40 is trapezoidal in cross section, which facilitates the insertion of the metal sleeve 1 between the jaws 14 and 16. Between the jaws 14 and 16, of which the jaw 14 is stationary, and the body 96 has a gap 92 which is dimensioned such that the actuating plate 42 can be pivoted. The upper end 93 of the actuating plate 42 is fixedly connected to the body 96. In the area of the lower end of the actuating plate 42, which is arranged at a distance from the plunger 91 of the switch 100 in the relaxed state, a recess 90 is formed in the body 96, so that the actuating plate 42 can also be actuated with a finger of the user (cf. Fig. 6). This makes it possible to squeeze only a certain area of the metal sleeve 1. For the firing pin 24, a guide bore 94 and a recess 95 are provided in the body 96, while the upper jaw 16 has a recess 97 for the lower end of the firing pin 24.

Fig. 6 zeigt die Betätigung des Betätgungsbleches 42 mittels eines Fingers des Benutzers, während der Schaltvorgang nach Fig. 7 durch die Aderendhülse 12 erfolgt. Die Aderendhülse 12 ist mit Bezug auf die Öffnung 50 so bemessen, daß sie durch die Öffnung 50 nicht hindurchziehbar ist. Beim Andrücken der Aderendhülse 12 gegen das Betätigungsblech 42 wird dieses gegen den Stößel 91 gedrückt, so daß sie die Steuerungseinrichtung 46 einschaltet. Nachdem der Schlagbolzen 24 die obere Backe 16 betätigt hat, kann die Metallhülse aus den Backen herausgezogen werden. Das Betätigungsblech 42 nimmt hierbei seine in Fig. 5 dargestellte Position ein. Im Körper 96 ist auch eine in axialer Richtung der Metallhülse 1 sich erstreckende Ausnehmung 99 vorgesehen, so daß Metallhülsen unterschiedlicher Länge gepreßt werden können.FIG. 6 shows the actuation of the actuating plate 42 by means of a finger of the user, while the switching process according to FIG. 7 takes place through the wire end sleeve 12. The wire end sleeve 12 is dimensioned with respect to the opening 50 so that it cannot be pulled through the opening 50. When pressing the wire end sleeve 12 against the actuating plate 42, this is pressed against the plunger 91 so that it switches on the control device 46. After the firing pin 24 has actuated the upper jaw 16, the metal sleeve can be pulled out of the jaws. The actuating plate 42 assumes its position shown in FIG. 5. A recess 99, which extends in the axial direction of the metal sleeve 1, is also provided in the body 96, so that metal sleeves of different lengths can be pressed.

Die Fig. 8 und 9 zeigen, daß zwischen den Backen 14 und 16 zwei Druckfedern 105 und 106 angeordnet sind, für die Ausnehmungen 110 - 113 vorgesehen sind.8 and 9 show that two compression springs 105 and 106 are arranged between the jaws 14 and 16, for which recesses 110-113 are provided.

Claims (8)

  1. Device for producing electrically conductive connections between two or more conductive members with direct contact by means of a compressing or squeezing process, comprising a tool head (9), more especially a pressing head with two jaws (14, 16), which is driven electrically or pneumatically, for example, and is supported by a carrier or disposed in a housing (8), a switching or controlling means (46), and a switch (42) which is actuatable by a member (10) which is insertable into the tool head (9), characterised in that the switch (42), which is supported by the carrier or the housing (8), is disposed in front of the tool head (9) with respect to the direction of movement of the member (10), and in that the member (10), which is insertable into the tool head (9), has a thickened portion (12) or widened portion which can actuate the switch (42).
  2. Device according to claim 1, which is disposed in a housing, characterised in that the housing (8) is provided with an aperture (40), which is in alignment with the receiving means defined by the operative position of the jaws (14, 16)
  3. Device according to claim 1 or 2 for multicore cable ends having plastics material collars, characterised in that the switch (42) is a plate-shaped body having a slot (50) or opening, the width of the slot (50) corresponding to the maximum width of the metal sleeve, and in that the switch (42) is actuated by sleeve insulation upon pressure being exerted.
  4. Device according to one of claims 1 to 3, characterised in the pressing head (9), which is detachably connectable to the housing (8), has a working cylinder which is incorporated therein and is actuatable by compressed air.
  5. Device according to one of claims 1 to 3, characterised in that the pressing head (9) is part of a pressing clamp, the displaceable jaw (16) of which co-operates with a striking pin (24).
  6. Device according to claim 5, characterised in that the striking pin (24) is coaxially disposed in a magnet coil (26) and is actuatable by the magnetic field.
  7. Device according to claim 6, characterised in that one end of the pin (24), facing the jaw (16), is provided with a head (30), whereas the other end co-operates with a return spring (34).
  8. Device according to one of claims 5 to 7, characterised in that the striking pin (24) is connected to a plurality of magnets (26, 26'), which are disposed coaxially with one another, each of said magnets being excitable and, in consequence, the force being doubled or multiplied.
EP89903466A 1988-03-10 1989-03-09 Device for producing electrically conductive connections Expired - Lifetime EP0403536B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3807925A DE3807925A1 (en) 1988-03-10 1988-03-10 DEVICE FOR PRODUCING ELECTRICALLY CONDUCTIVE CONNECTIONS
DE3807925 1988-03-10

Publications (2)

Publication Number Publication Date
EP0403536A1 EP0403536A1 (en) 1990-12-27
EP0403536B1 true EP0403536B1 (en) 1993-07-14

Family

ID=6349360

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89903466A Expired - Lifetime EP0403536B1 (en) 1988-03-10 1989-03-09 Device for producing electrically conductive connections

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US (1) US5054191A (en)
EP (1) EP0403536B1 (en)
DE (1) DE3807925A1 (en)
WO (1) WO1989008936A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5502996A (en) * 1994-12-12 1996-04-02 The Whitaker Corporation Crimping press actuator assembly
US5687613A (en) * 1996-02-13 1997-11-18 Ideal Industries, Inc. Crimp connector applicator
US5974659A (en) * 1996-05-23 1999-11-02 Kesinger; Donald A. Machine for repetitively applying connectors on cable ends to form round connections
US5813274A (en) * 1996-09-20 1998-09-29 The Whitaker Corporation Magnetic press
US6256871B1 (en) 1999-10-29 2001-07-10 Molex Incorporated Crimping apparatus for electrical connectors
US7356914B2 (en) * 2003-11-04 2008-04-15 Ideal Industries, Inc. Twist-on wire connector applicator

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3492541A (en) * 1963-11-21 1970-01-27 Amp Inc Tactile responsive switching circuit
US3492846A (en) * 1964-10-16 1970-02-03 Lowell L Jones Trip device having automatic conductor and terminal gaging characteristics for terminal applying press
US3584496A (en) * 1968-05-03 1971-06-15 Amp Inc Magnetic actuator
US3710483A (en) * 1971-08-18 1973-01-16 Itt Split wire guide
US4031613A (en) * 1976-03-04 1977-06-28 Amp Incorporated Closed barrel terminal applicator
DE3508397C2 (en) * 1984-03-09 1986-06-12 Zoller & Fröhlich GmbH & Co KG, 7988 Wangen Machine for squeezing cable wire ends with wire end sleeves or the like. Connecting elements

Also Published As

Publication number Publication date
EP0403536A1 (en) 1990-12-27
US5054191A (en) 1991-10-08
DE3807925A1 (en) 1989-09-28
DE3807925C2 (en) 1989-12-21
WO1989008936A1 (en) 1989-09-21

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