EP0604828A1 - Press to crimp sleeves, cable terminations and the like - Google Patents

Press to crimp sleeves, cable terminations and the like Download PDF

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Publication number
EP0604828A1
EP0604828A1 EP93120183A EP93120183A EP0604828A1 EP 0604828 A1 EP0604828 A1 EP 0604828A1 EP 93120183 A EP93120183 A EP 93120183A EP 93120183 A EP93120183 A EP 93120183A EP 0604828 A1 EP0604828 A1 EP 0604828A1
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EP
European Patent Office
Prior art keywords
press
pressing
jaws
tool
tools
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Granted
Application number
EP93120183A
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German (de)
French (fr)
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EP0604828B1 (en
Inventor
Helmut Dipl.-Ing. Dischler
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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
    • H01R43/042—Hand tools for crimping
    • 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
    • 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
    • H01R43/0427—Hand tools for crimping fluid actuated hand crimping tools
    • 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 pressing device for pressing sleeves, cable lugs or the like onto a workpiece, with two tools that can be brought together with the aid of a drive device to form a pressing space, each tool having two opposing pressing jaws, the pressing surfaces of which are shaped such that when Pressing a polygonal shape results.
  • Cable lug pressing devices are used in particular for heavy current installation work.
  • a cable lug is placed on the end of a conductor and then connected to the conductor in that the cable lug is pressed radially. In this way, the cable lug and in part also the conductor located thereon are deformed in such a way that a firm press connection results.
  • a cable lug pressing device can be found, for example, in DE-PS 32 35 0 ⁇ 40 ⁇ .
  • Such pressing devices consist in the basic structure of two tools, namely an upper and a lower tool, and a drive device, for example a hydraulic cylinder, with the aid of which one of the tools can be moved in the direction of the other tool until both tools are brought together to form a pressing space.
  • the invention has for its object to design a pressing device of the type mentioned in such a way that workpieces of different diameters can be machined with it on the one hand in a usable area, but on the other hand the manufacturing costs are comparatively low and good functional reliability is achieved.
  • This object is achieved in that opposing press jaws on at least one tool these are pivoted such that the other tool moves against the pivotable pressing jaws when the tools are brought together and pivots them from an initial position into a pressing position forming the pressing chamber.
  • a pair of press jaws is thus provided at least on one tool, which are pivotable relative to one another and against which the other tool moves when the tools are brought together in order to pivot them from a starting position to a pressing position. It has been shown that workpieces of different diameters can be pressed in a relatively large area by the provision of swiveling pressing jaws on only one tool with the pressing device, without having to replace the pressing jaws. It is advantageous if the other tool also has opposite swiveling press jaws.
  • a correspondingly more uniform aspect ratio can also be achieved by appropriate movement control of the pivotable press jaws.
  • the tendency of the workpiece, which is known in the known pressing devices, to twist during pressing is avoided.
  • Presses with two tools which can be brought together via a drive device are known in the prior art, in which each tool has two opposing pressing jaws which are pivotably mounted and come into contact with one another when moving together with mutual pivoting.
  • the storage of the press jaws and the formation of the press surfaces is, however, such that there is an essentially round press space. Accordingly, only circular workpieces of a certain diameter can be pressed with this press while maintaining the basic shape of this cross section, which is precisely the objective of the present invention opposes.
  • the swiveling press jaws are mounted on swivel axes so that they perform a pure swivel movement.
  • the pivotable pressing jaws are guiding the pivotable pressing jaws against suitable guide tracks in order to superimpose the pivoting movement on another, for example a translational movement.
  • the invention further provides that the pivotable pressing jaws are spring-loaded in the direction of the starting position, so that it is ensured that the pressing jaws actually pivot from a certain starting position when the tools are brought together.
  • a further press jaw which is immovable relative to the tool.
  • Such an arrangement is particularly preferred when an essentially regular hexagonal cross section of the press chamber is sought.
  • the swiveling press jaws and the immovable press jaw of a press tool should be matched to one another in such a way that the swivellable press jaws guide the associated immovable press jaw over the swivel range. This can be achieved by appropriate shaping of the press jaws.
  • the swiveling press jaws can have flat but also convex press surfaces in order to achieve a desired final cross section.
  • the pressing device (1) shown schematically in Figures (1) to (3) has a device frame (2) which is continued in an underside web (3) and a rounded upper tool (4).
  • a lower tool (5) is guided so as to be translatable in the directions of the double arrow A.
  • the lower tool (5) is connected to a drive device, not shown here.
  • a drive device is usually designed as a hydraulic cylinder arrangement, with the aid of which the lower tool (5) can be moved.
  • the lower tool (5) has two opposing pressing jaws (6, 7) which are connected to one another and are firmly connected to the lower tool (5), the pressing surfaces (8, 9) of which are placed in a V-shape with respect to one another.
  • the press jaws (10 ⁇ , 11) have convexly shaped press surfaces (14, 15).
  • the axes (12, 13) run perpendicular to the plane of the drawing.
  • the press jaws (10 ⁇ , 11) have extensions (16, 17) on which tension springs (18, 19) engage, the other ends are attached to pins (20 ⁇ , 21) which are connected to the upper tool (4).
  • a further press jaw (22) is attached to the upper tool (4), which extends with a tapering part between the pivotable press jaws (10 ⁇ , 11) and has a concave press surface (23).
  • the press jaw (22) also has concave guide surfaces (24, 25) on which the press surfaces (14, 15) of the press jaws (10 ⁇ , 11) slide when the press jaws (10 ⁇ , 11) are shown in Figure (1) Starting position can be pivoted into the pressing position according to Figure (3).
  • a conductor (26) with a sleeve-shaped cable lug (27) placed over it is inserted between the pressing jaws (10 ⁇ , 11) of the upper tool (4) in the opened pressing device (1), as shown in FIG. (1).
  • the lower tool is then moved in the direction of the upper tool (4) with the aid of the drive device. Even before the pressing jaws (6, 7) of the lower tool (5) come to rest on the cable lug (27), their pressing surfaces (8, 9) hit projections (28, 29) of the pressing jaws (10 ⁇ , 11).
  • the pressing device (31) shown in Figures (4) to (6) has a device frame (32) which is continued in an underside web (33) and a rounded upper tool (34).
  • a lower tool (35) is guided in a translatory manner in the directions of the double arrow B on the device frame (2).
  • the lower tool is also here with a drive device, not shown, e.g. in the form of a hydraulic cylinder arrangement or an electric motor, in connection.
  • the lower tool (35) has two opposing press jaws (36, 37) which - in contrast to the exemplary embodiment according to the figures (1) to (3) - are pivotally mounted about axes (38, 39).
  • the press jaws (36, 37) have flat press surfaces (40 ⁇ , 41). They have extensions (42, 43) on which tension springs (44, 45) engage, which are attached at the other ends to pins (46, 47) which are connected to the lower tool (35).
  • a further press jaw (48) is attached to the lower tool (35), which extends with a tapering part between the pivotable press jaws (40 ⁇ , 41) and also has a flat press surface (49).
  • the further press jaw (48) has concave guide surfaces (50 ⁇ , 51) on which sections of the press jaws (36, 37) adjoining the press surfaces (40 ⁇ , 41) slide past when the press jaws (36, 37) are pivoted from their initial position shown in FIG. 4 into the press position according to FIG. 6.
  • the upper tool (34) is essentially identical to the upper tool (4) of the exemplary embodiment according to FIGS. (1) to (3) and is otherwise a mirror image of the lower tool (35). It accordingly has press jaws (54, 55) which are pivotably mounted about axes (52, 53) and have flat press surfaces (56, 57). Tension springs (60 ⁇ , 61) act on extensions (58, 59), which are connected to the upper tool (34) by means of pins (62, 63).
  • a further pressing jaw (64) with a flat pressing surface (65) also extends here between the pressing jaws (54, 55). It has concave guide surfaces (66, 67) on which the press jaws (56, 57) slide.
  • the pressing process takes place essentially as in the exemplary embodiment according to FIGS. (1) to (3).
  • a combination of conductor (68) and sleeve-shaped cable lug (69) is inserted into the open pressing device (31).
  • the lower tool (35) is moved in the direction of the upper tool (34) with the aid of the drive device.
  • the pressing surfaces (40 ⁇ , 41) or (56, 57) of the pressing jaws (36, 37) or (54, 55) come into contact with the cable lug (69), projections (70 ⁇ , 71, 72, 73) on the press jaws (36, 37, 54, 55).
  • the actual pressing process then begins.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Processing Of Terminals (AREA)
  • Press Drives And Press Lines (AREA)
  • Insertion, Bundling And Securing Of Wires For Electric Apparatuses (AREA)
  • Installation Of Indoor Wiring (AREA)

Abstract

A press for crimping sleeves, cable terminations or the like onto a workpiece has two tools which can be moved together with the aid of a drive device to form a compression area, each tool having two opposite compression jaws whose compression surfaces are formed in such a manner that a polygonal shape is produced during compression. In order that workpieces of different diameter can be processed using the press, while manufacturing costs are comparatively low and good functional reliability is achieved, opposite compression jaws (10, 11; 36, 37, 54, 55) of at least one tool (4, 34, 35) can pivot thereon in such a manner that the other tool (5, 34, 35) moves against the compression jaws (10, 11, 36, 37, 54, 55) which can pivot when the tools (4, 5, 34, 35) are moved together, and it pivots from an original position into a compression position which forms the compression area. <IMAGE>

Description

Die Erfindung betrifft ein Preßgerät zum Aufpressen von Hülsen, Kabelschuhen oder dergleichen auf ein Werkstück, mit zwei Werkzeugen, die mit Hilfe einer Antriebseinrichtung unter Bildung eines Preßraumes zusammenführbar sind, wobei jedes Werkzeug zwei gegenüberliegende Preßbacken aufweist, deren Preßflächen derart geformt sind, daß sich beim Verpressen eine Mehreckform ergibt.The invention relates to a pressing device for pressing sleeves, cable lugs or the like onto a workpiece, with two tools that can be brought together with the aid of a drive device to form a pressing space, each tool having two opposing pressing jaws, the pressing surfaces of which are shaped such that when Pressing a polygonal shape results.

Kabelschuhpreßgeräte werden insbesondere bei Starkstrominstallationsarbeiten verwendet. Dabei wird ein Kabelschuh auf das Ende eines Leiters aufgesetzt und dann mit dem Leiter dadurch verbunden, daß der Kabelschuh radial verpreßt wird. Auf diese Weise werden der Kabelschuh und zum Teil auch der daran befindliche Leiter derart verformt, daß sich eine feste Preßverbindung ergibt.Cable lug pressing devices are used in particular for heavy current installation work. A cable lug is placed on the end of a conductor and then connected to the conductor in that the cable lug is pressed radially. In this way, the cable lug and in part also the conductor located thereon are deformed in such a way that a firm press connection results.

Ein Kabelschuhpreßgerät ist beispielhaft der DE-PS 32 35 0̸40̸ zu entnehmen. Solche Preßgeräte bestehen im Grundaufbau aus zwei Werkzeugen, nämlich einem Ober- und einem Unterwerkzeug, sowie einer Antriebseinrichtung, beispielsweise einem Hydraulikzylinder, mit deren Hilfe eines der Werkzeuge in Richtung auf das andere Werkzeug verschiebbar ist, bis beide Werkzeuge unter Bildung eines Preßraumes zusammengeführt sind.A cable lug pressing device can be found, for example, in DE-PS 32 35 0̸40̸. Such pressing devices consist in the basic structure of two tools, namely an upper and a lower tool, and a drive device, for example a hydraulic cylinder, with the aid of which one of the tools can be moved in the direction of the other tool until both tools are brought together to form a pressing space.

Die Werkzeuge selbst weisen jeweils Preßbacken auf, deren Preßflächen so geformt sind, daß eine gewünschte Verformung der Hülse, des Kabelschuhs oder dergleichen und erforderlichenfalls auch des Werkstücks selbst beim Zusammenführen der Werkzeuge erzielt wird. Im Regelfall wird dabei eine Mehreckform, und zwar auch die Verformung zu einem regelmäßigen Mehreck, insbesondere Sechseck, angestrebt.The tools themselves each have pressing jaws, the pressing surfaces of which are shaped such that a desired deformation of the Sleeve, the cable lug or the like and if necessary also the workpiece itself is achieved when the tools are brought together. As a rule, a polygonal shape, and in particular the deformation into a regular polygon, in particular a hexagon, is sought.

Bei dem Preßgerät nach der DE-PS 32 35 0̸40̸ müssen zumindest die Preßbacken ausgewechselt werden, wenn auf Werkstücke unterschiedlichen Durchmessers Hülsen oder dergleichen aufgepreßt werden müssen. Dies ist umständlich und setzt voraus, daß entsprechend dimensionierte Preßbacken zur Hand sind. Es ist deshalb ein insoweit verbessertes Preßgerät entwickelt worden, das in dem DE-GM 87 0̸4 860̸.4 offenbart ist. Dieses Preßgerät hat ineinandergreifende Preßbacken, die gleichzeitig Gleitflächen für benachbarte Werkzeugteile bilden. Mit diesem Preßgerät lassen sich in einem großen Bereich Werkstücke unterschiedlichen Durchmessers mit Hülsen oder dergleichen versehen, ohne daß hierfür Teile des Preßgerätes ausgewechselt werden müssen.In the pressing device according to DE-PS 32 35 0̸40̸ at least the pressing jaws have to be replaced if sleeves or the like have to be pressed onto workpieces of different diameters. This is cumbersome and presupposes that appropriately dimensioned press jaws are at hand. It has therefore been developed an improved pressing device, which is disclosed in DE-GM 87 0̸4 860̸.4. This pressing device has interlocking pressing jaws which at the same time form sliding surfaces for adjacent tool parts. With this pressing device, workpieces of different diameters can be provided with sleeves or the like in a large area without the need to replace parts of the pressing device.

Nachteilig bei diesem Preßgerät ist, daß es einer aufwendigen Fertigung wegen der erforderlichen Genauigkeit der Bearbeitung der einzelnen Gleitflächen bedarf und daß selbst dann eine einwandfreie Funktion wegen der auftretenden Flächenpressungen nicht gewährleistet ist. Es kam deshalb auch nicht zu einer praktischen Verwirklichung dieses Preßgerätes.The disadvantage of this pressing device is that it requires complex production because of the required accuracy in machining the individual sliding surfaces and that even then a perfect function cannot be guaranteed because of the surface pressures that occur. Therefore, there was no practical implementation of this press.

Der Erfindung liegt die Aufgabe zugrunde, ein Preßgerät der eingangs genannten Art so auszubilden, daß mit ihm einerseits in einem brauchbaren Bereich Werkstücke unterschiedlichen Durchmessers bearbeitet werden können, andererseits aber die Fertigungskosten vergleichsweise gering sind und eine gute Funktionssicherheit erzielt wird.The invention has for its object to design a pressing device of the type mentioned in such a way that workpieces of different diameters can be machined with it on the one hand in a usable area, but on the other hand the manufacturing costs are comparatively low and good functional reliability is achieved.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß gegenüberliegende Preßbacken wenigstens eines Werkzeuges an diesem derart verschwenkbar gelagert sind, daß das andere Werkzeug beim Zusammenführen der Werkzeuge gegen die schwenkbaren Preßbacken an fährt und sie aus einer Ausgangsstellung in eine den Preßraum ausbildende Preßstellung verschwenkt.This object is achieved in that opposing press jaws on at least one tool these are pivoted such that the other tool moves against the pivotable pressing jaws when the tools are brought together and pivots them from an initial position into a pressing position forming the pressing chamber.

Gemäß der Erfindung ist also zumindest an einem Werkzeug ein Paar von Preßbacken vorgesehen, die zueinander verschwenkbar sind und gegen die das andere Werkzeug beim Zusammenführen der Werkzeuge anfährt, um sie aus einer Ausgangsstellung gegen eine Preßstellung zu verschwenken. Es hat sich gezeigt, daß schon durch das Vorsehen von schwenkbaren Preßbacken an nur einem Werkzeug mit dem Preßgerät Werkstücke unterschiedlichen Durchmessers verpreßt werden können, und zwar in einem relativ großen Bereich, ohne daß hierfür Preßbacken ausgewechselt werden müssen. Dabei ist es von Vorteil, wenn auch das andere Werkzeug jeweils gegenüberliegende, verschwenkbare Preßbacken aufweist.According to the invention, a pair of press jaws is thus provided at least on one tool, which are pivotable relative to one another and against which the other tool moves when the tools are brought together in order to pivot them from a starting position to a pressing position. It has been shown that workpieces of different diameters can be pressed in a relatively large area by the provision of swiveling pressing jaws on only one tool with the pressing device, without having to replace the pressing jaws. It is advantageous if the other tool also has opposite swiveling press jaws.

Durch eine entsprechende Bewegungsführung der verschwenkbaren Preßbacken kann zudem ein wesentlich gleichmäßigeres Seitenlängenverhältnis erzielt werden. Außerdem wird die bei den bekannten Preßgeräten vorhandene Neigung des Werkstückes, sich beim Verpressen zu Verdrehen, vermieden.A correspondingly more uniform aspect ratio can also be achieved by appropriate movement control of the pivotable press jaws. In addition, the tendency of the workpiece, which is known in the known pressing devices, to twist during pressing is avoided.

Zwar sind im Stand der Technik Pressen mit zwei über eine Antriebseinrichtung zusammenführbaren Werkzeugen bekannt, bei denen jedes Werkzeug zwei gegenüberliegende Preßbacken aufweist, die schwenkbar gelagert sind und beim Zusammenfahren unter gegenseitiger Verschwenkung aneinander zur Anlage kommen. Die Lagerung der Preßbacken und die Ausbildung der Preßflächen ist jedoch so getroffen, daß sich ein im wesentlichen runder Preßraum ergibt. Entsprechend können mit dieser Presse auch nur kreisrunde Werkstücke eines bestimmten Durchmessers unter Beibehaltung der Grundform dieses Querschnittes verpreßt werden, was der Zielsetzung der vorliegenden Erfindung gerade entgegensteht.Presses with two tools which can be brought together via a drive device are known in the prior art, in which each tool has two opposing pressing jaws which are pivotably mounted and come into contact with one another when moving together with mutual pivoting. The storage of the press jaws and the formation of the press surfaces is, however, such that there is an essentially round press space. Accordingly, only circular workpieces of a certain diameter can be pressed with this press while maintaining the basic shape of this cross section, which is precisely the objective of the present invention opposes.

Im einfachsten Fall sind die verschwenkbaren Preßbacken über Schwenkachsen gelagert, so daß sie eine reine Schwenkbewegung ausführen. Es besteht jedoch auch die Möglichkeit, die verschwenkbaren Preßbacken an geeigneten Führungsbahnen anliegend zu führen, um die Schwenkbewegung mit einer anderen, beispielsweise einer Translationsbewegung, zu überlagern.In the simplest case, the swiveling press jaws are mounted on swivel axes so that they perform a pure swivel movement. However, there is also the possibility of guiding the pivotable pressing jaws against suitable guide tracks in order to superimpose the pivoting movement on another, for example a translational movement.

In weiterer Ausgestaltung der Erfindung ist vorgesehen, daß beim Zusammenführen der Werkzeuge die Preßbacken gegeneinander anfahren, also ein direkter Kontakt zwischen den Preßbacken herbeigeführt wird.In a further embodiment of the invention it is provided that when the tools are brought together, the pressing jaws move against one another, that is to say a direct contact between the pressing jaws is brought about.

Die Erfindung sieht ferner vor, daß die verschwenkbaren Preßbacken in Richtung auf die Ausgangsstellung federbeaufschlagt sind, damit gesichert ist, daß die Preßbacken auch tatsächlich von einer bestimmten Ausgangsstellung her verschwenken, wenn die Werkzeuge zusammengeführt werden.The invention further provides that the pivotable pressing jaws are spring-loaded in the direction of the starting position, so that it is ensured that the pressing jaws actually pivot from a certain starting position when the tools are brought together.

Es ist ferner vorgeschlagen, daß zwischen den verschwenkbaren Preßbacken eines Werkzeuges jeweils eine weitere, gegenüber diesen unbewegliche Preßbacke angeordnet ist. Eine solche Anordnung ist insbesondere dann von Vorzug, wenn ein im wesentlichen regelmäßiger sechseckiger Querschnitt des Preßraumes angestrebt wird. Dabei sollten jeweils die verschwenkbaren Preßbacken und die demgegenüber unbewegliche Preßbacke eines Preßwerkzeuges derart aneinander angepaßt sein, daß die verschwenkbaren Preßbacken die zugehörige unbewegliche Preßbacke über den Schwenkbereich führen. Dies kann durch entsprechende Formgebung der Preßbacken erreicht werden.It is further proposed that between the swiveling press jaws of a tool there is a further press jaw which is immovable relative to the tool. Such an arrangement is particularly preferred when an essentially regular hexagonal cross section of the press chamber is sought. The swiveling press jaws and the immovable press jaw of a press tool should be matched to one another in such a way that the swivellable press jaws guide the associated immovable press jaw over the swivel range. This can be achieved by appropriate shaping of the press jaws.

Die verschwenkbaren Preßbacken können ebene, aber auch konvexe Preßflächen aufweisen, um einen gewünschten Endquerschnitt zu erreichen.The swiveling press jaws can have flat but also convex press surfaces in order to achieve a desired final cross section.

In der Zeichnung ist die Erfindung an Hand von Ausführungsbeispielen näher veranschaulicht. Es zeigen:

Figur (1)
ein Preßgerät gemäß der Erfindung in Ausgangsstellung;
Figur (2)
das Preßgerät gemäß Figur (1) zu Beginn des Preßvorgangs;
Figur (3)
das Preßgerät gemäß den Figuren (1) und (2) am Ende des Preßvorgangs;
Figur (4)
ein anderes Preßgerät nach der Erfindung in Ausgangsstellung;
Figur (5)
das Preßgerät gemäß Figur (4) zu Beginn des Preßvorgangs und
Figur (6)
das Preßgerät gemäß den Figuren (4) und (5) am Ende des Preßvorgangs.
In the drawing, the invention is illustrated in more detail using exemplary embodiments. Show it:
Figure (1)
a pressing device according to the invention in the starting position;
Figure (2)
the pressing device according to Figure (1) at the beginning of the pressing process;
Figure (3)
the pressing device according to the figures (1) and (2) at the end of the pressing process;
Figure (4)
another pressing device according to the invention in the starting position;
Figure (5)
the pressing device according to Figure (4) at the beginning of the pressing process and
Figure (6)
the pressing device according to the figures (4) and (5) at the end of the pressing process.

Das in den Figuren (1) bis (3) schematisch dargestellte Preßgerät (1) hat einen Geräterahmen (2), der sich in einem untenseitigen Steg (3) und einem abgerundeten Oberwerkzeug (4) fortsetzt. An dem Geräterahmen (2) ist ein Unterwerkzeug (5) translatorisch in den Richtungen des Doppelpfeils A beweglich geführt. Das Unterwerkzeug (5) steht mit einer hier nicht näher dargestellten Antriebseinrichtung in Verbindung. Üblicherweise ist eine solche Antriebseinrichtung als Hydraulikzylinderanordnung ausgebildet, mit deren Hilfe das Unterwerkzeug (5) verschoben werden kann.The pressing device (1) shown schematically in Figures (1) to (3) has a device frame (2) which is continued in an underside web (3) and a rounded upper tool (4). On the device frame (2), a lower tool (5) is guided so as to be translatable in the directions of the double arrow A. The lower tool (5) is connected to a drive device, not shown here. Such a drive device is usually designed as a hydraulic cylinder arrangement, with the aid of which the lower tool (5) can be moved.

Das Unterwerkzeug (5) hat zwei miteinander verbundene, gegenüberliegende und mit dem Unterwerkzeug (5) fest verbundene Preßbacken (6, 7), deren Preßflächen (8, 9) V-förmig zueinander gestellt sind. Am Oberwerkzeug (4) sind gegenüberliegend zwei Preßbacken (10̸, 11) schwenkbar um die Achsen (12, 13) gelagert. Die Preßbacken (10̸, 11) haben konvex geformte Preßflächen (14, 15). Die Achsen (12, 13) verlaufen senkrecht zur Zeichnungsebene. Die Preßbacken (10̸, 11) weisen Fortsätze (16, 17) auf, an denen Zugfedern (18, 19) angreifen, die anderenends an Stiften (20̸, 21) befestigt sind, welche mit dem Oberwerkzeug (4) verbunden sind.The lower tool (5) has two opposing pressing jaws (6, 7) which are connected to one another and are firmly connected to the lower tool (5), the pressing surfaces (8, 9) of which are placed in a V-shape with respect to one another. On the upper tool (4) there are two on the opposite side Press jaws (10̸, 11) pivotally mounted about the axes (12, 13). The press jaws (10̸, 11) have convexly shaped press surfaces (14, 15). The axes (12, 13) run perpendicular to the plane of the drawing. The press jaws (10̸, 11) have extensions (16, 17) on which tension springs (18, 19) engage, the other ends are attached to pins (20̸, 21) which are connected to the upper tool (4).

Am Oberwerkzeug (4) ist eine weitere Preßbacke (22) angebracht, die sich mit einem verjüngenden Teil zwischen den schwenkbaren Preßbacken (10̸, 11) erstreckt und eine konkave Preßfläche (23) aufweist. Die Preßbacke (22) hat des weiteren konkave Führungsflächen (24, 25), auf denen die Preßflächen (14, 15) der Preßbacken (10̸, 11) gleiten, wenn die Preßbacken (10̸, 11) aus ihrer in Figur (1) dargestellten Ausgangsstellung in die Preßstellung gemäß Figur (3) verschwenkt werden.A further press jaw (22) is attached to the upper tool (4), which extends with a tapering part between the pivotable press jaws (10̸, 11) and has a concave press surface (23). The press jaw (22) also has concave guide surfaces (24, 25) on which the press surfaces (14, 15) of the press jaws (10̸, 11) slide when the press jaws (10̸, 11) are shown in Figure (1) Starting position can be pivoted into the pressing position according to Figure (3).

Für einen Preßvorgang werden in das geöffnete Preßgerät (1), wie es in Figur (1) dargestellt ist, ein Leiter (26) mit übergestülptem, hülsenförmigen Kabelschuh (27) zwischen die Preßbacken (10̸, 11) des Oberwerkzeugs (4) eingelegt. Dann wird das Unterwerkzeug mit Hilfe der Antriebseinrichtung in Richtung auf das Oberwerkzeug (4) bewegt. Noch bevor die Preßbacken (6, 7) des Unterwerkzeugs (5) am Kabelschuh (27) zur Anlage kommen, stoßen deren Preßflächen (8, 9) gegen Vorsprünge (28, 29) der Preßbacken (10̸, 11). Durch weiteres Vorrücken des Unterwerkzeuges (5) gleiten die Vorsprünge (28, 29) auf den Preßflächen (8, 9) der Preßbacken (6, 7) nach innen, wodurch die Preßbacken (10̸, 11) des Oberwerkzeugs (4) gegeneinander verschwenkt werden. Gleichzeitig gleiten die Preßbacken (10̸, 11) auf den Führungsflächen (24, 25). Beides ist aus dem Vergleich zwischen Figur (1) und Figur (2) ersichtlich, wobei das Unterwerkzeug (5) in der Darstellung gemäß Figur (2) inzwischen gegen die Kombination aus Leiter (26) und Kabelschuh (27) angefahren ist.For a pressing process, a conductor (26) with a sleeve-shaped cable lug (27) placed over it is inserted between the pressing jaws (10̸, 11) of the upper tool (4) in the opened pressing device (1), as shown in FIG. (1). The lower tool is then moved in the direction of the upper tool (4) with the aid of the drive device. Even before the pressing jaws (6, 7) of the lower tool (5) come to rest on the cable lug (27), their pressing surfaces (8, 9) hit projections (28, 29) of the pressing jaws (10̸, 11). By further advancing the lower tool (5), the projections (28, 29) slide inwards on the pressing surfaces (8, 9) of the pressing jaws (6, 7), whereby the pressing jaws (10̸, 11) of the upper tool (4) are pivoted against each other . At the same time, the press jaws (10̸, 11) slide on the guide surfaces (24, 25). Both can be seen from the comparison between FIG. (1) and FIG. (2), the lower tool (5) in the illustration according to FIG. (2) now being approached against the combination of conductor (26) and cable lug (27).

Die weitere Bewegung des Unterwerkzeuges (5) gegenüber dem Oberwerkzeug (4) führt dann zu einer Verformung des Kabelschuhs (27) und des Leiters (26) unter weiterer Verschwenkung der Preßbacken (10̸, 11) des Oberwerkzeugs (4). Dabei wird die Kombination aus Leiter (26) und Kabelschuh (27) auch gegen die weitere Preßbacke (22) gepreßt. Es entsteht dann der sich aus Figur (3) ergebende Querschnitt, der einem Sechseck angenähert ist. Nach Zurückfahren des Unterwerkzeugs (5) kann dann die so verpreßte Einheit aus Leiter (26) und Kabelschuh (27) entnommen werden.The further movement of the lower tool (5) relative to the upper tool (4) then leads to a deformation of the cable lug (27) and the conductor (26) with further swiveling of the pressing jaws (10̸, 11) of the upper tool (4). The combination of conductor (26) and cable lug (27) is also pressed against the further press jaw (22). The cross-section resulting from FIG. 3, which approximates a hexagon, then arises. After the lower tool (5) has been moved back, the unit pressed in this way from the conductor (26) and cable lug (27) can then be removed.

Das in den Figuren (4) bis (6) dargestellte Preßgerät (31) hat einen Geräterahmen (32), der sich in einem untenseitigen Steg (33) und einem abgerundeten Oberwerkzeug (34) fortsetzt. An dem Geräterahmen (2) ist auch hier ein Unterwerkzeug (35) translatorisch in den Richtungen des Doppelpfeils B beweglich geführt. Das Unterwerkzeug steht hier gleichfalls mit einer nicht näher dargestellten Antriebseinrichtung, z.B. in Form einer Hydraulikzylinderanordnung oder eines Elektromotors, in Verbindung.The pressing device (31) shown in Figures (4) to (6) has a device frame (32) which is continued in an underside web (33) and a rounded upper tool (34). Here, too, a lower tool (35) is guided in a translatory manner in the directions of the double arrow B on the device frame (2). The lower tool is also here with a drive device, not shown, e.g. in the form of a hydraulic cylinder arrangement or an electric motor, in connection.

Das Unterwerkzeug (35) hat zwei gegenüberliegende Preßbacken (36, 37), die - im Unterschied zum Ausführungsbeispiel gemäß den Figuren (1) bis (3) - schwenkbar um Achsen (38, 39) gelagert sind. Die Preßbacken (36, 37) haben ebene Preßflächen (40̸, 41). Sie weisen Fortsätze (42, 43) auf, an denen Zugfedern (44, 45) angreifen, die anderenends an Stiften (46, 47) befestigt sind, welche mit dem Unterwerkzeug (35) verbunden sind.The lower tool (35) has two opposing press jaws (36, 37) which - in contrast to the exemplary embodiment according to the figures (1) to (3) - are pivotally mounted about axes (38, 39). The press jaws (36, 37) have flat press surfaces (40̸, 41). They have extensions (42, 43) on which tension springs (44, 45) engage, which are attached at the other ends to pins (46, 47) which are connected to the lower tool (35).

Am Unterwerkzeug (35) ist eine weitere Preßbacke (48) angebracht, die sich mit einem verjüngenden Teil zwischen den schwenkbaren Preßbacken (40̸, 41) erstreckt und ebenfalls eine ebene Preßfläche (49) aufweist. Die weitere Preßbacke (48) hat konkave Führungsflächen (50̸, 51), auf denen an die Preßflächen (40̸, 41) anschließende Abschnitte der Preßbacken (36, 37) vorbeigleiten, wenn die Preßbacken (36, 37) aus ihrer in Figur (4) dargestellten Ausgangsstellung in die Preßstellung gemäß Figur (6) verschwenkt werden.A further press jaw (48) is attached to the lower tool (35), which extends with a tapering part between the pivotable press jaws (40̸, 41) and also has a flat press surface (49). The further press jaw (48) has concave guide surfaces (50̸, 51) on which sections of the press jaws (36, 37) adjoining the press surfaces (40̸, 41) slide past when the press jaws (36, 37) are pivoted from their initial position shown in FIG. 4 into the press position according to FIG. 6.

Das Oberwerkzeug (34) ist im wesentlichen identisch mit dem Oberwerkzeug (4) des Ausführungsbeispiels gemäß den Figuren (1) bis (3) und im übrigen spiegelbildlich zu dem Unterwerkzeug (35) ausgebildet. Es hat demgemäß um Achsen (52, 53) schwenkbar gelagerte Preßbacken (54, 55) mit ebenen Preßflächen (56, 57). An Fortsätzen (58, 59) greifen Zugfedern (60̸, 61) an, welche über Stifte (62, 63) mit dem Oberwerkzeug (34) verbunden sind.The upper tool (34) is essentially identical to the upper tool (4) of the exemplary embodiment according to FIGS. (1) to (3) and is otherwise a mirror image of the lower tool (35). It accordingly has press jaws (54, 55) which are pivotably mounted about axes (52, 53) and have flat press surfaces (56, 57). Tension springs (60̸, 61) act on extensions (58, 59), which are connected to the upper tool (34) by means of pins (62, 63).

Zwischen den Preßbacken (54, 55) erstreckt sich auch hier eine weitere Preßbacke (64) mit ebener Preßfläche (65). Sie hat konkave Führungsflächen (66, 67), auf denen die Preßbacken (56, 57) gleiten.A further pressing jaw (64) with a flat pressing surface (65) also extends here between the pressing jaws (54, 55). It has concave guide surfaces (66, 67) on which the press jaws (56, 57) slide.

Der Preßvorgang läuft im wesentlichen wie bei dem Ausführungsbeispiel gemäß den Figuren (1) bis (3) ab. In das geöffnete Preßgerät (31) wird eine Kombination aus Leiter (68) und hülsenförmigem Kabelschuh (69) eingelegt. Mit Hilfe der Antriebseinrichtung wird das Unterwerkzeug (35) in Richtung auf das Oberwerkzeug (34) bewegt. Wenn die Preßflächen (40̸, 41) bzw. (56, 57) der Preßbacken (36, 37) bzw. (54, 55) an dem Kabelschuh (69) zur Anlage kommen, stoßen Vorsprünge (70̸, 71, 72, 73) an den Preßbacken (36, 37, 54, 55) aneinander. Es beginnt dann der eigentliche Preßvorgang.The pressing process takes place essentially as in the exemplary embodiment according to FIGS. (1) to (3). A combination of conductor (68) and sleeve-shaped cable lug (69) is inserted into the open pressing device (31). The lower tool (35) is moved in the direction of the upper tool (34) with the aid of the drive device. When the pressing surfaces (40̸, 41) or (56, 57) of the pressing jaws (36, 37) or (54, 55) come into contact with the cable lug (69), projections (70̸, 71, 72, 73) on the press jaws (36, 37, 54, 55). The actual pressing process then begins.

Beim Weiterrücken des Unterwerkzeuges (35) in Richtung auf das Oberwerkzeug (34) verschwenken die Preßbacken (36, 37) des Unterwerkzeugs (35) und die Preßbacken (54, 55) des Oberwerkzeugs (34) und gleiten dabei auf den Führungsflächen (50̸, 51) bzw. (66, 67). Dies führt dann zu einer Verformung des Kabelschuhs (69) und des Leiters (68), wobei diese Kombination dann auch gegen die weiteren Preßbacken (48, 64) gepreßt werden. Es entsteht auf diese Weise der aus Figur (6) zu ersehende Sechseckquerschnitt.When the lower tool (35) moves further in the direction of the upper tool (34), the pressing jaws (36, 37) of the lower tool (35) and the pressing jaws (54, 55) of the upper tool (34) pivot and thereby slide on the guide surfaces (50̸, 51) and (66, 67). This then leads to a deformation of the cable lug (69) and the conductor (68), this combination then also being pressed against the further pressing jaws (48, 64). In this way, the one from FIG. 6 is formed seeing hexagon cross section.

Nach Zurückfahren des Unterwerkzeuges (35) kann dann die so verpreßte Einheit aus Leiter (68) und Kabel (69) entnommen werden. Dabei schwenken die Preßbacken (36, 37) bzw. (54, 55) auf Grund der Einwirkung der Zugfedern (44, 45) bzw. (60̸, 61) wieder in die in Figur (4) dargestellte Ausgangsstellung zurück.After the lower tool (35) has been moved back, the unit pressed in this way from the conductor (68) and cable (69) can then be removed. The press jaws (36, 37) or (54, 55) swivel back into the starting position shown in FIG. (4) due to the action of the tension springs (44, 45) or (60̸, 61).

Claims (11)

Preßgerät zum Aufpressen von Hülsen, Kabelschuhen oder dergleichen auf ein Werkstück, mit zwei Werkzeugen, die mit Hilfe einer Antriebseinrichtung unter Bildung eines Preßraumes zusammenführbar sind, wobei jedes Werkzeug Preßbacken aufweist, deren Preßflächen derart geformt sind, daß sich beim Verpressen eine Mehreckform ergibt,
dadurch gekennzeichnet, daß gegenüberliegende Preßbacken (10̸, 11; 36, 37, 54, 55) wenigstens eines Werkzeuges (4, 34, 35) an diesem derart schwenkbar sind, daß das andere Werkzeug (5, 34, 35) beim Zusammenführen der Werkzeuge (4, 5, 34, 35) gegen die schwenkbaren Preßbacken (10̸, 11; 36, 37, 54, 55) anfährt und sie aus einer Ausgangsstellung in eine den Preßraum ausbildende Preßstellung verschwenkt.Pressing device for pressing sleeves, cable lugs or the like onto a workpiece, with two tools which can be brought together with the aid of a drive device to form a pressing space, each tool having pressing jaws, the pressing surfaces of which are shaped in such a way that a polygonal shape is obtained during pressing,
characterized in that opposing pressing jaws (10̸, 11; 36, 37, 54, 55) of at least one tool (4, 34, 35) can be pivoted thereon in such a way that the other tool (5, 34, 35) when the tools are brought together (4, 5, 34, 35) starts against the swiveling press jaws (10̸, 11; 36, 37, 54, 55) and pivots them from an initial position into a press position forming the press space. Preßgerät nach Anspruch (1),
dadurch gekennzeichnet, daß das andere Werkzeug (5) unbewegliche Preßbacken (6, 7) aufweist.Press device according to claim (1),
characterized in that the other tool (5) has immovable pressing jaws (6, 7). Preßgerät nach Anspruch (1),
dadurch gekennzeichnet, daß beide Werkzeuge (34, 35) jeweils gegenüberliegende, verschwenkbare Preßbacken (36, 37, 54, 55) aufweisen.Press device according to claim (1),
characterized in that both tools (34, 35) each have opposite, pivotable press jaws (36, 37, 54, 55). Preßgerät nach einem der Ansprüche (1) bis (3),
dadurch gekennzeichnet, daß die verschwenkbaren Preßbacken (10̸, 11; 36, 37, 54, 55) über Schwenkachsen (12, 13; 38, 39, 52, 53) gelagert sind.Press device according to one of claims (1) to (3),
characterized in that the swiveling press jaws (10̸, 11; 36, 37, 54, 55) via swivel axes (12, 13; 38, 39, 52, 53) are stored. Preßgerät nach einem der Ansprüche (1) bis (4),
dadurch gekennzeichnet, daß die verschwenkbaren Preßbacken (10̸, 11; 36, 37, 54, 55) an Führungsbahnen (24, 25; 50̸, 51, 66, 67) anliegend geführt sind.Press device according to one of claims (1) to (4),
characterized in that the pivotable pressing jaws (10̸, 11; 36, 37, 54, 55) are guided against guide tracks (24, 25; 50̸, 51, 66, 67). Preßgerät nach einem der Ansprüche (1) bis (5),
dadurch gekennzeichnet, daß beim Zusammenfahren der Werkzeuge (4, 5; 34, 35) die Preßbacken (6, 7, 10̸, 11; 36, 37, 54, 55) gegeneinander anfahren.Press device according to one of claims (1) to (5),
characterized in that when the tools (4, 5; 34, 35) are moved together, the pressing jaws (6, 7, 10̸, 11; 36, 37, 54, 55) move against each other. Preßgerät nach einem der Ansprüche (1) bis (6)
dadurch gekennzeichnet, daß die verschwenkbaren Preßbacken (10̸, 11; 36, 37, 54, 55) in Richtung auf die Ausgangsstellung federbeaufschlagt sind.Press device according to one of claims (1) to (6)
characterized in that the pivotable pressing jaws (10̸, 11; 36, 37, 54, 55) are spring-loaded in the direction of the starting position. Preßgerät nach einem der Ansprüche (1) bis (7),
dadurch gekennzeichnet, daß zwischen den verschwenkbaren Preßbacken (10̸, 11; 36, 37, 54, 55) eines bzw. beider Werkzeuge (4; 34, 35) jeweils eine weitere, gegenüber diesen unbewegliche Preßbacke (22, 64) angeordnet ist.Press device according to one of claims (1) to (7),
characterized in that between the pivotable press jaws (10̸, 11; 36, 37, 54, 55) of one or both tools (4; 34, 35) there is in each case a further press jaw (22, 64) which is immovable relative to the latter. Preßgerät nach Anspruch (8),
dadurch gekennzeichnet, daß jeweils die verschwenkbaren Preßbacken (10̸, 11; 36, 37, 54, 55) und die demgegenüber unbewegliche Preßbacke (22; 48, 64) eines Preßwerkzeuges (4; 34, 35) derart aneinander angepaßt sind, daß die verschwenkbaren Preßbacken (10̸, 11; 36, 37, 54, 55) die unbewegliche Preßbacke (22, 48, 64) über den Schwenkbereich führen.Press device according to claim (8),
characterized in that in each case the swiveling pressing jaws (10̸, 11; 36, 37, 54, 55) and the immovable pressing jaw (22; 48, 64) of a pressing tool (4; 34, 35) are adapted to one another in such a way that the swiveling Press jaws (10̸, 11; 36, 37, 54, 55) guide the immovable press jaw (22, 48, 64) over the swivel range. Preßgerät nach einem der Ansprüche (1) bis (9),
dadurch gekennzeichnet, daß die verschwenkbaren Preßbacken (36, 37, 54, 55) ebene Preßflächen (40̸, 41, 56, 57) aufweisen.Press device according to one of claims (1) to (9),
characterized in that the pivotable pressing jaws (36, 37, 54, 55) have flat pressing surfaces (40̸, 41, 56, 57). Preßgerät nach einem der Ansprüche (1) bis (10̸),
dadurch gekennzeichnet, daß die verschwenkbaren Preßbacken (10̸, 11) konvexe Preßflächen (14, 15) aufweisen.Press device according to one of claims (1) to (10̸),
characterized in that the pivotable press jaws (10̸, 11) have convex press surfaces (14, 15).
EP93120183A 1992-12-31 1993-12-15 Press to crimp sleeves, cable terminations and the like Expired - Lifetime EP0604828B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9217886U DE9217886U1 (en) 1992-12-31 1992-12-31
DE9217886U 1992-12-31

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EP0604828A1 true EP0604828A1 (en) 1994-07-06
EP0604828B1 EP0604828B1 (en) 1998-09-02

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EP (1) EP0604828B1 (en)
JP (1) JPH076847A (en)
AT (1) ATE170674T1 (en)
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DE (2) DE9217886U1 (en)
NO (1) NO934906L (en)

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Also Published As

Publication number Publication date
EP0604828B1 (en) 1998-09-02
NO934906D0 (en) 1993-12-30
US5644944A (en) 1997-07-08
ATE170674T1 (en) 1998-09-15
JPH076847A (en) 1995-01-10
AU670837B2 (en) 1996-08-01
NO934906L (en) 1994-07-01
AU5281293A (en) 1994-07-14
DE59308955D1 (en) 1998-10-08
DE9217886U1 (en) 1993-02-25

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