DE102017106148A1 - Crimping tool, method for setting up an insulation crimp and crimping machine - Google Patents

Abstract

The invention relates to a crimping tool (2) for crimping an electrical crimp contact device (5) to an electrical cable (6) by means of a crimping machine (1), comprising at least one crimping die (10) with at least one insulation crimping region (100) for producing an insulation crimp (90 ), wherein by means of the insulation crimping region (100) an insulation crimping portion (51) of the crimp contact device (5) is crimpable to an insulation (61) of the cable (6), whereby by means of the crimping tool (2) a secondary crimping force (F ₂ , -F ₂ ) on / in the insulation crimping section (51) can be introduced, by means of which different outer diameter (D ₁ , D ₂ ) in the insulation crimp (90) can be set ..
The invention further relates to a method for setting up an insulation crimp (90) by a crimping tool (2), in particular at least one crimping die (10), a crimping machine (1), an insulation crimping section (51) of an electrical crimping contact device (5) being insulated ( 61) of an electric cable (6) is crimped, and by the method, a larger outer diameter (D ₁ ) and a smaller outer diameter (D ₂ ) are established in the insulation crimp (90).

Description

The invention relates to a crimping tool for crimping an electrical crimp contact device to an electrical cable by means of a crimping machine. Furthermore, the invention relates to a method for setting up an insulation crimp by a crimping tool, in particular at least one crimping die, a crimping machine. Moreover, the invention relates to a crimping machine at least for producing an insulation crimp between an insulation portion of a cable and an insulation crimping portion of a crimp contact device.

In the electrical field (electronics, electrical engineering, electrical, electrical power engineering, etc.) are known a large number of electrical connection devices, connecting devices, bushing, tab, pin, pin and / or hybrid connectors, etc., which serve electrical currents To transmit voltages, signals and / or data with a wide range of currents, voltages, frequencies and / or data rates. In the low, medium or high voltage and / or current range, and in particular in the automotive sector, such connectors in hot, possibly hot, contaminated, wet, wet and / or chemically aggressive environments have short term and / or permanent proper transmission of ensure electrical power, signals and / or data. Due to a wide range of applications, a large number of specially designed connectors are known.

The electrical contact devices such connectors to an electrical conductor of a cable are often designed as so-called crimp contact devices, wherein the respective crimp contact device to an electrical cable, such. As an electrical line, an electrical wire or a wiring harness, etc., can be crimped. Crimping is understood to mean a joining method in which a crimp contact device and a cable are firmly connected to one another by a plastic deformation of a crimp section of the crimp contact device, which may be achieved, for example, by B. can be done by pressing, crushing, crimping, curling or folding. Such an electrical connection is difficult to solve and ensures high electrical safety and high mechanical stability.

In the industry, a production of crimp usually by so-called crimping machines (crimping machines, fully automatic crimping machines, crimping presses, cable assembly machines, stop presses, etc.), by means of which the crimp contact devices z. B. can be processed in the form of tape product to ensure high productivity while maintaining quality. A crimping machine may include, among other devices and / or devices, a crimping device (crimping die and crimping anvil) for making the crimp connections between the crimping contact devices and the cables, a contactor feeder (applicator) for providing the crimping contact devices, and a cable feeder for providing cables.

The crimping device is divided into a crimping tool having at least one crimping die and a crimping anvil, which can likewise be designated as a crimping tool, on which the crimping contact device in question can be provided, in particular supported. By means of the vertically movable crimping die, which can cooperate with the preferably stationary or possibly movable crimp anvil, a crimped connection between a respective cable and a respective crimp contact device can be produced. When making a variety of crimp connections, short process cycles are desired.

The trend toward miniaturization requires the fulfillment of all technical requirements in the smallest possible space. With regard to a small contact grid for crimp contact devices, an insulation crimp to be installed on a cable is a limiting factor, since the insulation crimp is externally attached to a free longitudinal end section of a prefabricated or assembled cable. So far, the miniaturization was solved to reduce the radii, which is always accompanied by smaller conductor cross sections of the cable.

It is an object of the invention, on the one hand to follow the trend towards miniaturization, but on the other hand to maintain an existing conductor cross-section of a cable, as this, with respect to a particular application due to the miniaturization has essentially reached its minimum. For this purpose, a corresponding crimping tool, at least comprising a crimping die for crimping an electrical crimping contact device, a corresponding method for setting up an insulation crimp, and a corresponding crimping machine are to be specified.

The object of the invention is by means of a crimping tool for crimping an electrical crimp contact device to an electrical cable by means of a crimping machine; by a method for setting up an insulation crimp by a crimping tool, in particular at least one crimping punch, of a crimping machine; and by means of a crimping machine at least for producing an insulation crimp between an insulation portion of a cable and an insulation crimping portion of a crimp contact device; solved according to the independent claims. - Advantageous Further developments, additional features and / or advantages of the invention will become apparent from the dependent claims and the following description.

The crimping tool according to the present invention comprises at least one crimping punch having at least one insulation crimping region for producing an insulation crimp, wherein an insulation crimping portion of the crimping contact is crimped to insulation of the cable by means of the crimping crimping (main crimping force), and by means of the crimping tool a subcrimping force can be introduced to / in the insulation crimping portion, by means of which substantially different outer diameters can be established in the insulation crimp. Further, by means of the crimping tool, a main crimping force can be introduced to / in the insulation crimping section.

By means of the main crimping force, essentially the same external diameter in the insulation crimp, as an insulation crimp, can be set up in isolation, that is to say under an idealistic omission of the secondary crimping force. Ie. all outer diameter ratios of any two outer diameters are ideally always essentially equal to one. The main crimping force of the crimping tool results in major deformation forces in the insulation crimping section to set up the insulation crimps themselves. If only the main crimping force from the crimping tool is applied to the insulation crimping section, a mainly circular cylindrical insulation crimp would result.

The secondary crimping force of the crimping tool results in secondary deformation forces in the insulation crimping section for establishing a reduced outer diameter (smaller outer diameter) than an outer diameter which can be set only with the main crimping force or major deformation forces (larger outer diameter). This results in a Isolationscrimp (elliptical or oval cylinder) with substantially elliptical or oval cross-sections with a variety of different outer diameters.

Ie. By means of the main crimping force from the crimping tool (s) in the insulation crimping section, and by means of or by the subcrimp force from the crimping tool (s) in the insulation crimping section, outside diameter ratios other than unity can be established in the cross sections of the mainly or substantially elliptical or oval insulation crimp.

In one embodiment, the crimping tool is configured in such a way that secondary crimping forces which can be applied antiparallel and / or into the insulation crimping section in addition to mainly or substantially antiparallelly in the direction of a second axis can be applied to / in the insulation crimping section in addition to mainly or substantially in the direction of a first axis are. Here, a conversion of Hauptcrimpkräfte in the direction of the first axis in Hauptverformkräfte in Isolationscrimpabschnitt, as well as a conversion of Nebencrimpkräfte in the direction of the second axis in Nebenverformkräfte in Isolationscrimpabschnitt should be disregarded. Only the forces from the crimping tool are considered.

The first axis and the second axis may have an intermediate angle of about 45 °, about 50 °, about 55 °, about 60 °, about 65 °, about 70 °, about 75 °, about 80 ° , about 85 ° or about 90 °. In this case, the first axis may essentially be a vertical axis of the crimping tool and the second axis may be essentially a transverse axis of the crimping tool. In one embodiment, the crimping die is designed only as an insulation crimping punch. Furthermore, the crimping tool can have at least one further crimping section, in particular a conductor crimping section.

Preferably, the crimping stamp on two Crimpflanken. The two Crimpflanken can be arranged spring-loaded in the crimping die in the transverse direction of the crimping die via a spring slot. Alternatively, the two Crimpflanken be mounted pivotally in the crimp, the two Crimpflanken are preferably each biased in the crimp set. A bias voltage can be mechanical (spring, passive), electrical (actuator, active / passive), pneumatic (actuator, active / passive) or hydraulic (actuator, active / passive).

Alternatively, the crimping tool may further comprise at least one plunger by means of which the secondary crimping forces can be introduced onto / in the insulation crimping section. Here, at least one of the two Crimpflanken have a plunger by means of which the Nebencrimpkräfte can be introduced on / in the insulation crimping section. An actuation of the at least one plunger can be done electromechanically (motor, active), pneumatic (actuator, active) or hydraulic (actuator, active).

In one embodiment, the crimping tool further comprises, externally with respect to the crimping die, a device by means of which the secondary crimping forces can be introduced onto / in the insulation crimping section. Alternatively, the crimping tool may further comprise externally with respect to the crimping die a device by means of which a force can be introduced into at least one crimping bank, as a result of which the secondary crimping forces can be introduced onto / in the insulation crimping section. Such a device may be mechanical, electrical, electromechanical, pneumatically or hydraulically driven and z. B. as a bolt, a jaw, etc. may be formed.

Alternatively, the crimping tool may further comprise externally with respect to the crimping die a flank guide or a flank slider, by means of which a force can be introduced into at least one crimping bank, as a result of which the secondary crimping forces can be introduced onto / in the insulation crimping section. Alternatively, at least one pressure stamp can be provided in or on the crimping stamp, by means of which the secondary crimping forces can be introduced on / into the insulation crimping section.

In one embodiment, the two Crimpflanken are materially integral with each other in the crimp set or formed integrally with the crimping die. Under a material integral composite of the two Crimpflanken in the crimping die z. B. a material integrally held together or trained crimping die, which is not separable without damaging the Crimpstempels. The entire crimping stamp incl. Its Crimpflanken is held together by a strong material connection. Under an integral composite of the two Crimpflanken with the crimping die z. B to understand a crimping die whose material origin was in turn integrally formed (forged and machined crimping punch) or fluid (cast and machined crimping punch).

A multi-part bond of the crimping die is of course applicable. In one embodiment, the crimping tool is designed such that the smaller outer diameter of the insulation crimp substantially corresponds to an outer diameter of an uncrimped cable. Furthermore, the crimping tool can be designed such that, after a proper setting up of the insulation crimp, an initial shape of the crimping tool is automatically restored in time.

In an embodiment, the insulation crimping portion and the further crimping portion may be set together in the crimping tool. Here, the insulation crimping section and the further crimping section can be rigidly connected to each other, e.g. B. multi-part, two-part, one-piece, material integral or integrally formed, be. Furthermore, the insulation crimping section and the further crimping section in the crimping tool can be designed to be movable relative to one another.

In the method according to the invention for setting up an insulation crimp by a crimping tool, in particular at least one crimping die of a crimping machine, an insulation crimping section of an electrical crimping contact device is crimped onto an insulation of an electrical cable, whereby the method establishes a larger outside diameter and a smaller outside diameter in the insulation crimp.

Here, the larger outer diameter and the smaller outer diameter can be set substantially simultaneously in Isolationscrimp. Alternatively, while the larger outer diameter is being established in the insulation crimp, it may be started to set the smaller outer diameter in the insulation crimp. Alternatively, the smaller outer diameter may be established substantially in time of the larger outer diameter in the insulation crimp. - When setting up the smaller outer diameter in the insulation crimp, the larger outer diameter of the insulation crimp can be kept constant. Alternatively, when setting up its smaller outer diameter, the insulation crimp may also be allowed to increase the larger outer diameter (stretch).

In one embodiment, by the method on the one hand mainly or substantially in the direction of a first axis antiparallel, conventional Hauptcrimpkräfte act on / in the Isolationscrimpabschnitt, and on the other hand, mainly or substantially in the direction of a second axis antiparallel Nebencrimpkräfte act on / in the Isolationscrimpabschnitt. Again, only the forces from the crimping tool are considered here.

In one embodiment, a side crimp force may result from an external force on at least one crimp of the crimp die. Here, the external force can actively or passively act on the at least one Crimpflanke. Alternatively, a side crimping force may result from an external force on the insulation crimping portion. Here, the external force can actively or passively act on the insulation crimping section. In one embodiment, after proper setting up of the insulation crimp, even a starting shape of the crimping tool can be independently restored by the crimping tool itself.

In one embodiment, with a correspondingly configured insulation crimping section, the method may be performed such that the insulation crimping section is left open at one location. Furthermore, the method can be performed such that the secondary crimping forces act on the insulation crimping section until an insulation material of the insulation has flowed into a recess of the insulation crimping section.

In one embodiment, a substantially elliptical or substantially oval isolation crimp is established by the crimping tool. In one embodiment, the method may be performed such that the smaller outer diameter of the insulation crimp substantially corresponds to an outer diameter of an uncrimped cable. - According to the invention, the method can be carried out by a crimping tool according to the invention.

The crimping machine according to the invention has a crimping tool, wherein the crimping tool is designed as a crimping tool according to the invention, and / or a method according to the invention for setting up the insulation crimp can be carried out by the crimping machine. The crimping machine may further comprise a further tool, in particular a crimping tool at least comprising a crimp anvil (crimping device: crimping die and crimping anvil), a contactor feed and / or a cable feed.

In one embodiment of the crimping machine, the crimp contact device can be placed on the crimp anvil by means of the contact device feed, and a free longitudinal end section of the cable can be placed in / on a mechanically open crimp section of the crimp contact device by means of the cable feed. In a temporal connection thereto, an insulation crimp and / or a conductor crimp can be set up between the crimp contact device and the free longitudinal end section of the cable by the crimping machine according to the invention or an interaction of the crimping tool according to the invention.

The invention is explained in more detail below with reference to exemplary embodiments with reference to the attached schematic and not to scale drawing. Sections, elements, components, units, schemes and / or components that have an identical, univocal or analogous configuration and / or function are described in the description of the figures (see below), the list of reference numerals, the patent claims and in the figures (FIG Drawing with the same reference numerals. A possible, in the description (description of the invention (see above), figure description) not explained, not shown in the drawing and / or not final alternative, a static and / or kinematic reversal, a combination, etc. to the embodiments of the invention or a component , a scheme, a unit, a component, an element or a portion thereof, the list of reference numerals can be further removed.

In the invention, a feature (section, element, component, unit, component, function, size, etc.) can be positively, i. H. present, or negative, d. H. absent, a negative feature is not explicitly explained as a feature, unless it is important according to the invention that it is absent. A feature of this specification (description, list of references, claims, drawing) may be applied not only in a specified manner and / or manner but also in a different manner and / or manner (isolation, summary, replacement, addition, isolation, omission, etc .). In particular, it is possible to replace, add or omit a feature in the claims and / or the description by reference numerals and a feature assigned thereto, or vice versa, in the description, the list of reference numerals, the patent claims and / or the drawing , In addition, a feature in a claim can be interpreted and / or specified in more detail.

• 1 einen geschnitten dargestellten Querschnitt durch einen an einem einadrigen Kabel eingerichteten Isolationscrimp gemäß dem Stand der Technik, mit einem im Wesentlichen kreisförmigen Querschnitt,
• 2 einen geschnitten dargestellten Querschnitt durch einen an einem einadrigen Kabel eingerichteten Isolationscrimp gemäß der Erfindung, mit einem im Wesentlichen elliptischen oder ovalen Querschnitt,
• 3 eine Stirnseitenansicht einer ersten Ausführungsform eines erfindungsgemäßen integralen Crimpstempels mit gegeneinander federbaren Crimpflanken aufgrund eines Federschlitzes im Crimpwerkzeug,
• 4 ein Ausführungsbeispiel der ersten Ausführungsform mit einer passiven Flankenführung für die gegeneinander federbaren Crimpflanken, wobei sich der Crimpstempel an einem oberen Totpunkt befindet,
• 5 das Ausführungsbeispiel aus 4, wobei sich der Crimpstempel an einem unteren Totpunkt befindet und sich die federbaren Crimpflanken aufeinander zubewegt haben (kleinerer Federschlitz),
• 6 ein Ausführungsbeispiel der ersten Ausführungsform mit einem passiven Flankenschieber für die gegeneinander federbaren Crimpflanken, wobei sich der Crimpstempel an einem oberen Totpunkt befindet,
• 7 das Ausführungsbeispiel aus 6, wobei sich der Crimpstempel an einem unteren Totpunkt befindet und sich die federbaren Crimpflanken aufeinander zubewegt haben (kleinerer Federschlitz),
• 8 eine Stirnseitenansicht einer zweiten Ausführungsform eines erfindungsgemäßen mehrteiligen Crimpstempels mit gegeneinander schwenkbaren Crimpflanken, die abgefedert gelagert sind,
• 9 eine Stirnseitenansicht einer dritten Ausführungsform eines erfindungsgemäßen mehrteiligen Crimpwerkzeugs mit am/im Crimpwerkzeug vorgesehenen Druckstempeln, und
• 10 einen geschnitten dargestellten Querschnitt eines an einem einadrigen Kabel eingerichteten Isolationscrimps gemäß der Erfindung, mit vier Durchgangsöffnungen.

The features of this specification are also interpretable as optional features (given the (mostly unknown) state of the art); that is, each feature can be considered as an optional, arbitrary, or preferred, that is, non-binding, feature. Thus, a detachment of a feature, possibly including its periphery, from an embodiment possible, this feature is then transferable to a generalized inventive concept. The absence of a feature (negative feature) in one embodiment demonstrates that the feature is optional with respect to the invention. Furthermore, in a species term for a feature, a generic term for the feature is also read (if necessary, further hierarchical structure in subgenus, section, etc.), whereby, for. B. under consideration of equality and / or equivalence, a generalization of one or this feature is possible. In the merely exemplary figures:

• 1 3 shows a cross-section through a prior art insulation crimp fitted on a single-core cable, with a substantially circular cross-section,
• 2 3 shows a section through a cross section through an insulation crimp according to the invention fitted on a single-core cable, with a substantially elliptical or oval cross-section,
• 3 an end view of a first embodiment of an integral crimping die according to the invention with crimps sprung against each other due to a spring slot in the crimping tool,
• 4 An embodiment of the first embodiment with a passive edge guide for the mutually sprung Crimpflanken, wherein the crimping die is located at a top dead center,
• 5 the embodiment 4 , wherein the crimping die is located at a bottom dead center and the springable crimped shoulders have moved toward one another (smaller spring slot),
• 6 An embodiment of the first embodiment with a passive edge slider for the mutually sprung Crimpflanken, wherein the crimping die is at a top dead center,
• 7 the embodiment 6 , wherein the crimping die is located at a bottom dead center and the springable crimped shoulders have moved toward one another (smaller spring slot),
• 8th an end view of a second embodiment of a multi-part crimping punch according to the invention with mutually pivotable Crimpflanken, which are mounted sprung,
• 9 an end view of a third embodiment of a multi-part crimping tool according to the invention with provided on / in the crimping die, and
• 10 a cross-sectional view of a arranged on a single-core cable insulation crimp according to the invention, with four through holes.

The invention is based on embodiments of three embodiments ( 3-7 . 8th and 9 ) a variant of a mechanical crimping tool according to the invention 2 a crimping machine 1 and explained in more detail with reference to embodiments of an embodiment of a variant of a feasible by the crimping machine 1 inventive method. However, the invention is not limited to such variants, such embodiments and / or the embodiments explained below, but is of more fundamental nature, so that the invention can be applied to all crimping tools of crimping machines or by crimping machines feasible method. Here, the invention is applicable everywhere where crimps are to be manufactured or set up.

In the drawing, only those spatial and temporal portions of an article of the invention are shown, which are necessary for an understanding of the invention. Although the invention has been described and illustrated in more detail by preferred embodiments, the invention is not limited by the disclosed embodiments. Other variations may be deduced therefrom and / or from the above (description of the invention) without departing from the scope of the invention.

In a conventional arrangement of movements of a crimping die 10 with respect to a crimping anvil 30 in a crimping machine 1, the crimping punch is 10 opposite the crimp anvil 30 essentially vertical (vertical axis V ), wherein a respective electrical Crimpkontaktvorrichtung 5 and a related electrical cable 6 (Wire, wire, wiring harness, etc.) substantially in a longitudinal direction (longitudinal axis L) extend (see also the 1 ). - It is possible according to the invention to generalize this arrangement, so that the crimping die 10 along a first axis A ₁ is movable and is a transverse direction Q the crimp contact device 5 and the cable 6 along a second axis A ₂ extend, these two axes A ₁ A ₂ are preferably arranged at a right angle to each other.

According to the invention, a crimping tool 2 at least comprising a crimping punch 10 provided, which or next to a vertical application (vertical axis V , but also first axis A ₁ ) of a main crimping force F ₁ / - F ₁ an application (transverse axis Q , but also second axis A ₂ ) of a secondary crimping force F _{2 /} - F ₂ allows to make a width (outside diameter D ₁ ) of an isolation crimp 90 to reduce. Ie. Reduce a larger outside diameter D ₁ in a cross-sectional area of the insulation crimp 90 on a smaller outside diameter D ₂ ,

For this purpose, the crimping tool 2 or the crimping die 10 one or more movable elements or devices. These transmit a z. B. from the outside horizontally (transverse axis Q, but also the second axis A ₂ ) Applicable force on an insulation crimping section 51 a relevant Crimpkontaktvorrichtung 5. Time after a proper set up of the insulation crimp according to the invention 90 , preferably, an initial shape of the crimping tool 2 or the crimping die 10 in particular independently (eg fully elastic) again (eg crimping dies 10 as a resilient element, cf. also the 3-7 ).

The 1 shows a central section through an insulation crimp 90 according to the prior art, wherein the insulation crimp 90 substantially exclusively circular cross-sections (all outer diameters D ₁ substantially the same), that is formed circular cylindrical. For setting up the isolation crimp 90 is an insulation crimping portion 51 of the crimp contact device 5 to an external insulation of the cable 6 been crimped, with a crimping punch 10 and a co-operating crimping anvil 30, the external main crimping forces F ₁ , - F ₁ along a vertical V axis A ₁ on the insulation crimping section 51 interacted. The insulation crimp 90 In this case, a section of a crimping area (crimp 90 ) of the crimp contact device 5 be.

It should be noted that in a vertical movement of a Crimpstempels 10 relative to the crimp anvil 30 in a resulting insulation crimp 90 between an insulation crimping section therebetween 51 a crimp contact device 5 and an insulation 61 or external insulation 61 a cable in between 6 essentially only vertical forces can be introduced. Comparatively low horizontal forces on the insulation crimping section 51 can come from a shaping of the crimping die 10 and / or the crimp anvil 30, by which, however, only an elastic deformation of the insulation crimp 90 is achievable, or, in a tight crimping punch 10 , a violation of the outer insulation 61 of the cable 6 must be risked.

In contrast, the shows 2 a central section through an insulation crimp 90 according to the invention, wherein the insulation crimp 90 exclusively comprises mainly or substantially ellipsoidal or oval cross sections (different outer diameters in a range of D ₂ to D ₁ ), ie is formed as a mainly or substantially elliptical or oval cylinder. For setting up the isolation crimp 90 is an insulation crimping portion 51 of the crimp contact device 5 to an outer insulation 61 of the cable 6 been crimped, wherein by a crimping tool 2 and a cooperating crimp anvil 30 the external main crimping forces F ₁ , - F ₁ (in the 2 not shown) along a preferably vertical V axis A ₂ , as well as the external Nebencrimpkräfte F ₂ , - F ₂ along a preferably transverse Q axis A ₂ acted on the insulation crimping section 51.

From the external main crimping forces F ₁ , - F ₁ result in crimping major deformation forces in the insulation crimping section 51 for setting up the isolation crimp 90 with the outside diameter D ₁ (incl. retraction due to external secondary crimping forces) F ₂ , - F ₂ ). From the external secondary crimping forces F ₂ , - F ₂ result in crimping secondary deformation forces in the insulation crimping section 51 for setting the outer diameter D ₂ or an outer diameter ratio D ₂ / D ₁ of the isolation crimp 90 , Here is a respective amount of Nebencrimpkräfte F ₂ , - F ₂ essentially independent of a respective amount of the main crimping forces F ₁ , - F ₁ furnishable.

According to the invention this can be done by means of a crimping tool 2 a crimping machine 1 , at least comprising a crimping die 10 (cf. 3 to 9 ), which itself in turn has at least one insulation crimping die 10 includes. This crimping tool 2 can with a crimping tool 3 cooperate the crimping machine 1, which comprises at least one crimping anvil 30, which in turn at least one isolation crimp anvil 30 includes. The crimp stamp 10 includes an insulation crimping region 100 with a crimp body 102 and a crimping head 101 , being in the crimping head 101 preferably two Crimpflanken 110 for making or setting up the isolation crimp 90 are set up.

The 3 shows the first embodiment of the crimping die according to the invention 10 , Whose Crimpflanken 110 against one another federbar in preferably integrally formed crimping die 10 are set up. For this purpose, the crimping punch 10 in the crimp body 102 a spring slot 112 on which the two Crimpflanken 110 . 110 feather soft against each other; a Crimpflanke 110 itself is spring-hard interpretations. In this case, the spring slot extends 112 from a common ground of the two Crimpflanken 110 . 110 inside the crimp body 102 into and preferably ends with a radius, so that the spring slot 112 not as a possibly continuing crack in the crimp body 102 is set up.

Furthermore, the shows 3 an embodiment for setting up the isolation crimp 90 through the crimping tool 2 or the crimping die 10 , By means of external antiparallel forces on the Crimpflanken 110 . 110 (see the arrows in the 3 ) are the Nebencrimpkräfte F ₂ , - F ₂ in the over the spring slot 112 resiliently in the crimping die 10 furnished Crimpflanken 110, 110 can be introduced. Here are the Nebencrimpkräfte F ₂ , - F ₂ on the axis A ₂ or the horizontal transverse axis Q. The Crimpflanken 110 . 110 then transmit the minor crimping forces F ₂ , - F ₂ in the insulation crimp 90 where next to the larger outside diameter D ₁ a smaller outer diameter D ₂ in isolation crimp 90 establishes (see the 2 ).

Alternatively, the secondary crimping forces F ₂ , - F ₂ without a detour via the Crimpflanken 110 . 110 directly into the already finished or forming insulation crimp 90 are introduced (not shown). - In both embodiments, this z. Example by means of mechanically, electrically, electromechanically, pneumatically and / or hydraulically driven bolts, jaws, etc., the force acting preferably horizontally Q on the crimping die 10 or directly on the possibly forming insulation crimp 90 in a bottom dead center of the crimping tool 2 or the crimping die 10 in a crimping process and the Crimpflanken 110 . 110 or the insulation crimp 90 self compressing to a defined degree.

The 4 and 5 show a further embodiment of the crimping tool 2 and the Crimpstempels 10 with spring slot 112 , Here are the Crimpflanken 110 . 110 compressed by a flank guide 200, the z. B. is positioned below the crimp anvil 30 and / or a carrier strip. Here, the edge guide 200 z. B. part of an applicator of the crimping machine 1 be. Here are the Nebencrimpkräfte F ₂ , - F ₂ not active, as applied in the above embodiments, but passively by the movement of the crimping die 10 generated, with the flank guide 200 the Crimpflanken 110 . 110 forces one to move towards each other. For this purpose, a suitable geometry is set up in between. The forces on the Crimpflanken 110 . 110 can by spacings of guide elements of the edge guide 200 be defined to each other and / or a geometry of the guide elements.

The 6 and 7 show one to the 4 and 5 analogous embodiment of the crimping tool 2 or the crimping die 10 , Here are the Crimpflanken 110 . 110 compressed by means of a edge slider 210, the actual slider 212 z. B. above the crimp anvil 30 and / or a carrier strip is positioned. Here is at least one slide 212 by means of an oblique guide element 214 of the crimping tool 2 or the crimping die 10 actuated such that the slide 212 during crimping, at least one crimper 110 horizontal Q, A ₂ in the direction of the resulting insulation crimp 90 presses.

The 8th shows the second embodiment of the crimping tool 2 and the Crimpstempels 10 wherein a respective Crimpflanke 110 via a pivot bearing 120 in the crimping head 101 is stored. A feather 122 , in particular a compression spring 122 , provides a mechanical preload of Crimpflanke 110 , It is of course possible to use the crimp stamp 10 to design such that a tension spring is applicable. Here are the two Crimpflanken 110 . 110 mechanically biased against each other so that they are in the transverse direction Q outward from the crimp stamp 10 want to move away, which is preventable by a corresponding stop. Such a crimping die 10 is z. B. in the embodiments according to the 3 to 7 applicable.

The 9 shows the third embodiment of the crimping tool 2 and the crimping die 10 , wherein at least one plunger 130 on and / or in the crimping die 10 or a Crimpflank 110 is provided. Here, the Nebencrimpkräfte F ₂ , - F ₂ without a detour via the Crimpflanken 110 . 110 be introduced directly into the already finished or forming insulation crimp 90. Is the plunger 130 in the Crimpflanke 110 provided so this preferably takes part in the actual crimping process. If the plunger 130 outside the Crimpflanke 110 provided, so after crimping the insulation crimp 90 in the area of the or the plunger 130 be moved to its smaller outer diameter D ₂ to set up.

The 10 shows a decorated insulation crimp 90 an insulation crimping section 51 a finished crimped crimp contact device 5. Here, the insulation crimp 90 not closed, something in the 10 can be seen above. When crimping the insulation crimp 90 preferably arranged such that a part of the outer insulation 61 of the cable 6 essentially forms an outer peripheral portion of the insulation crimp 90. This is an insulation of the outer insulation 61 between the peripheral edges of the insulation crimping portion 51. In addition, the insulation crimping portion 51 may have at least one recess 52 , in particular a through-hole 52 , exhibit.

In the present case, the insulation crimp section 51 three through-holes 52, wherein in the transverse direction Q two passage recesses 52 are opposite. Furthermore, a bottom of the insulation crimping section 51 , so opposite to the upper opening of the insulation crimp 90 , Have a through-hole 52. According to the invention, the Nebencrimpkräfte F ₂ , - F ₂ act so long on the insulation crimping section 51 until the insulating material in sufficient form in a respective passage recess 52 occurred. In this case, an outer side preferably forms into a passage recess 52 Insulation mass occurred an outside of the insulation crimp 90 ,

Furthermore, the shows 10 an electrical conductor 60 , in particular an inner conductor 60 with seven twisted strands, the cable 6 , - According to the invention results in a reduced or minimized width D ₂ an isolation crimp 90 , Here is the width D ₂ of the isolation crimp 90 controllable and / or adjustable. This results in an improved utilization of space, z. B of a predetermined contact chamber by a controlled shaping of the Isolationscrimps 90. Furthermore, this is a smaller contact grid feasible.

LIST OF REFERENCE NUMBERS

1

Crimping machine, crimping machine, crimping press, cable assembly machine, impact press etc.

2

Crimping tool at least comprising the crimping die 10th

3

Crimping tool at least comprising the crimping stud 20

5

electrical crimp contact device

6

electrical cable, wire, wire, harness etc.

10

Crimping stamp at least comprising the insulation crimping stamp ( 10 )

30

Crimpamboss at least comprising the isolation crimpamboss ( 30 )

51

Insulation crimping portion of the crimp contact device 5

52

Recess, in particular through-hole

60

electrical conductor, inner conductor, outer conductor of the cable 6

61

Insulation, external insulation of the cable 6

90

Crimp at least comprising the insulation crimp ( 90 ), Insulation crimp connection

100

Crimping area, insulation crimping area of the crimping die 10

101

Crimping head of the crimping die 10

102

Crimping body of the crimping die 10

110

Crimping head of crimping head 101

112

Spring slot in the crimp body 102 , The two Crimpflanken 110, 110 against each feather soft (Crimpflanke 110 itself: spring hard) from

120

Swivel bearing of the relevant Crimpflanke 110 in the crimping head 101

122

(Tension / compression spring) for mechanical prestressing of the Crimpflanke 110

130

plunger

200

(passive) edge management, z. B. part of the applicator

210

(passive) edge slider

212

pusher

214

guide element

A ₁

first axis preferably substantially vertical axis V when crimping

A ₂

second axis preferably substantially horizontal axis or transverse axis Q when crimping

D ₁

(larger) diameter, outer diameter, height of the insulation crimp 90 in the direction of the first axis A ₁

D ₂

(smaller, reduced) diameter, outer diameter, width of the insulation crimp 90 in the direction of the second axis A ₂

F ₁

Main crimping force on first axis A ₁ due to crimping tool 2, resulting in Hauptverformkräfte to set up the insulation crimp 90 with the outside diameter D ₁ (possibly incl F ₂ )

F ₂

Secondary crimping force on second axis A ₂ , This results in Nebenverformkräfte to set up the outer diameter D ₂ or an outer diameter ratio D _{2 /} D _{1 of} the insulation crimp 90

L

Longitudinal direction, longitudinal axis of the crimping machine 1 , the crimping tool 2, 3, of the crimping die 10 , the crimp anemone, the isolation crimp 90 when crimping, axial

Q

Transverse direction, transverse axis of the crimping machine 1 , the crimping tool 2, 3, of the crimping die 10 , the crimp anemone, the isolation crimp 90 when crimping, across

V

Vertical direction, vertical axis of the crimping machine 1 , the crimping tool 2 . 3 , the crimping stamp 10 , the crimp anemone, the isolation crimp 90 when crimping, vertically

Claims (13)

Crimping tool (2) for crimping an electrical crimp contact device (5) to an electrical cable (6) by means of a crimping machine (1), comprising at least one crimping die (10) with at least one insulation crimping region (100) for producing an insulation crimp (90), by means of of the insulation crimping region (100), an insulation crimping section (51) of the crimp contact device (5) can be crimped to an insulation (61) of the cable (6), characterized in that by means of the crimping tool (2) a secondary crimping force (F ₂ , -F ₂ ) on / in the insulation crimping section (51) can be introduced, by means of which different outer diameter (D ₁ , D ₂ ) in the insulation crimp (90) can be established. Crimping tool (2) according to the preceding claim, characterized in that in addition to mainly or substantially in the direction of a first axis (A ₁ , V) antiparallel acting Hauptcrimpkräften (F ₁ , -F ₁ ) on / in the insulation crimping section (51), in addition mainly or in addition in the direction of a second axis (A ₂ , Q) antiparallel acting Nebencrimpkräfte (F ₂ , -F ₂ ) on / in the insulation crimping section (51) can be introduced. Crimping tool (2) according to one of the preceding claims, characterized in that the first axis (A ₁ , H) and the second axis (A ₂ , Q) has an intermediate angle of approximately 45 °, approximately 50 °, approximately 55 ° about 60 °, about 65 °, about 70 °, about 75 °, about 80 °, about 85 ° or about 90 °, wherein the first axis (A ₁ ) preferably substantially a vertical axis (V) of the crimping tool (2) and the second axis (A ₂ ) is preferably substantially a transverse axis (Q) of the crimping tool (2). Crimping tool (2) according to one of the preceding claims, characterized in that the crimping die (10) has two crimping shoulders (110), wherein: • the two crimping edges (110) in the transverse direction (Q) of the crimping die (10) via a spring slot (112 ) in the crimping die (10) are spring-mounted against each other, • the two Crimpflanken (110) in the crimping die (10) are pivotally mounted, and the two Crimpflanken (110) are preferably biased in Crimpstempel (10) are set, • the crimping tool (2) further comprises at least one plunger (130) by means of which the Nebencrimpkräfte (F ₂ , -F ₂ ) on / in the Isolationscrimpabschnitt (51) can be introduced, or • at least one of the two Crimpflanken (110) has a plunger (130) by means of in which the Nebencrimpkräfte (F ₂ , -F ₂ ) on / in the insulation crimping section (51) can be introduced. Crimping tool (2) according to one of the preceding claims, characterized in that: • the crimping tool (2) further comprises externally with respect to the crimping die (10) a means by which the Nebencrimpkräfte (F ₂ , -F ₂ ) on / in the insulation crimping section (51) can be introduced, • the crimping tool (2) further comprises externally with respect to the crimping die (10) a device by means of which a force can be introduced into at least one crimping bank (110), as a result of which the secondary crimping forces (F ₂ , - F ₂ ) on / in the insulation crimping section (51) can be introduced, • the crimping tool (2) further externally with respect to the crimping die (10) comprises a flank guide or a edge slide, by means of which a force in at least one Crimpflank (110) can be introduced, wherein in the sequence the Nebencrimpkräfte (F ₂ , -F ₂ ) on / in the Isolationcrimpabschnitt (51) can be introduced, or • in or on the Crimpstempel (10) at least one plunger (130) v orseh is by means of which the Nebencrimpkräfte (F ₂ , -F ₂ ) on / in the Isolationscrimpabschnitt (51) can be introduced. Crimping tool (2) according to one of the preceding claims, characterized in that: • by means of the crimping tool (2) a substantially elliptical or a substantially oval insulation crimp (90) can be set up, • the crimping die (10) merely as an insulation crimping punch (10 ), the two Crimpflanken (110) materially integrally connected to each other in the crimping die (10) or formed integrally with the crimping die (10), • the crimping tool (10) further comprises at least one further Crimpabschnitt, in particular a Leitercrimpabschnitt, • the crimping tool (10) is designed such that the smaller outer diameter (D ₂ ) of the insulation crimp (90) essentially corresponds to an outer diameter of an uncrimped cable (6), • the crimping tool (10) is designed such that it follows in time proper setting of the insulation crimp (90) an output form of the crimping tool (2) sel reestablishes again, and / or • the insulation crimping section and the further crimping section are set together in the crimping tool (10). Method for setting up an insulation crimp (90) by a crimping tool (2), in particular at least one crimping die (10), a crimping machine (1), wherein an insulation crimping section (51) of an electrical crimping contact device (5) strikes an insulation (61) of an electrical cable (6) is crimped, characterized in that by the method, a larger outer diameter (D ₁ ) and a smaller outer diameter (D ₂ ) in the insulation crimp (90) are established. Method according to the preceding claim, characterized in that: • the larger outer diameter (D ₁ ) and the smaller outer diameter (D ₂ ) are set up essentially simultaneously in the insulation crimp (90), while the larger outer diameter (D ₁ ) in the insulation crimp (90 ), the smaller outer diameter (D ₂ ) is set up in the insulation crimp (90), the smaller outer diameter (D ₂ ) is set up substantially later than the larger outer diameter (D ₁ ) in the insulation crimp (90) Establishing the smaller outer diameter (D ₂ , Q) in the insulation crimp (90), the larger outer diameter (D ₁ ) of the insulation crimp (90) being kept constant, and / or • allowing the insulation crimp (90) to set its smaller outer diameter (D ₂ ) is allowed to enlarge the larger outer diameter (D ₁ ). Method according to one of the preceding claims, characterized in that by the method on the one hand mainly or substantially in the direction of a first axis (A ₁ , V) antiparallel Hauptcrimpkräfte (F ₁ , -F ₁ ) act on / in the Isolationscrimpabschnitt (51) and, on the other hand, mainly or substantially in the direction of a second axis (A ₂ , Q) antiparallel Nebencrimpkräfte (F ₂ , -F ₂ ) act on / in the Isoliercrimpabschnitt (51). Method according to one of the preceding claims, characterized in that: • a Nebencrimpkraft (F ₂ , -F ₂ ) from an external force on at least one Crimpflanke (110) of the crimping die (10) results, • the external force active or passive on the at least one Crimpflanke (110) acts, • a Nebencrimpkraft (F ₂ , -F ₂ ) results from an external force on the Isolationscrimpabschnitt (51), • the external force actively or passively on the Isolationscrimpabschnitt (51) acts, and / or • After an orderly setting up of the insulation crimp (90), an initial shape of the crimping tool (2) is automatically restored in time. Method according to one of the preceding claims, characterized in that, in a correspondingly configured insulation crimping section (52), the method is guided such that the insulation crimping section (52) is left open in one place, and / or the secondary crimping forces (F ₂ , -F ₂ ) act on the insulation crimping section (51) until an insulating compound of the insulation (61) has flowed into a recess (52) of the insulation crimping section (52). Method according to one of the preceding claims, characterized in that: • a substantially elliptical or a substantially oval insulation crimp (90) is set up by the crimping tool (2), • the method is guided such that the smaller outer diameter (D ₂ ) of the insulation crimp (90) substantially corresponds to an outer diameter of an uncrimped cable (6), and / or • the method is carried out by a crimping tool (2), which is designed according to one of the preceding claims. Crimping machine (1) at least for producing an insulation crimp (90) between an insulation section of an electrical cable (6) and an insulation crimping section (51) of an electrical crimp contact device (5), characterized in that the crimping machine (1) comprises a crimping tool (2), wherein the crimping tool (2) according to any one of the preceding claims is formed, and / or by the crimping machine (1), a method for setting up the insulation crimp (90) according to one of the preceding claims is feasible.

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