Crimping pliers and crimping pliers

Abstract

The invention relates to a crimping tool die (1) having two die halves (2, 3). The die halves (2, 3) are guided relative to each other during the crimping stroke by means of a guide device (51). The crimping surfaces (40, 41) of the die halves (5) are formed by the end sides of mutually cooperating ribs (37). The guide device (51) has a guide rod (43) formed by a thickened portion (42) at the end side of a rib (37) and / or a guide notch (50), the guide rod being formed by a thickened portion (42) at the end side of a rib (37) and the guide notch being formed by a guide notch area (45) connecting the two ribs (37) to each other. The crimping tool die (1) is used in a crimping tool which can be used, for example, for extruding cable end sleeves.

Description

Technical Field

[0001] The present invention relates to a crimping tool die, which is intended for use in a crimping tool. The crimping tool die comprises two die halves, the crimping surfaces of which define a die housing, into which a workpiece can be inserted, which is to be crimped between the crimping surfaces of the die halves. The crimping tool die is used, for example, to press a workpiece, such as a cable end sleeve (with or without an insulating ferrule) having a cable arranged therein. The present invention also relates to a crimping tool having such a crimping tool die. Background Art

[0002] Document EP 0 516 598 B1 discloses a crimping pliers die having two die halves. These die halves are each supported on the crimping pliers jaws so as to be pivotable about a pivot axis perpendicular to the pivot plane of the jaws via pivot pins in the support eyes of the crimping pliers jaws. These die halves each have a guide rod on one side of one die and a guide recess configured as a guide hole on the other side of the die half. The guide rod of one die half is then movably guided in the direction of the crimping axis in the associated guide hole of the other die half, thereby forming a torsion fixing device by which the two die halves are guided relative to each other over the crimping stroke. In the relative position of the two die halves predetermined by the torsion fixing device, the two die halves can be twisted together about an axis of rotation that is coaxial with the crimping axis. Depending on the angle of rotation of the mold half unit about this axis of rotation, the longitudinal axis of the mold receptacle bounded by the two mold halves can then be oriented in a first rotational position, in which the mold receptacle is oriented in the longitudinal direction of the crimping pliers and extends in the swivel plane of the jaws, and in a second rotational position, in which the mold receptacle is oriented perpendicular to the swivel plane of the jaws. In the first rotational position, a workpiece can be inserted into the crimping pliers and into its mold receptacle from the front, while in the second rotational position, a workpiece can be inserted into the mold receptacle from the side. Summary of the Invention

[0003] The object of the present invention is to propose a crimping pliers which is improved in particular with respect to:

[0004] - the configuration of the die halves, die receiving portion and crimping surface, and / or

[0005] - expand the possibilities of workpieces that can be crimped using the crimping tool, and / or

[0006] - the structural configuration of the mold halves, and / or

[0007] - the design of the guide means, in particular the anti-twist means, and / or

[0008] - the manufacturing methods that can be used for the mold halves, and / or

[0009] - configurations of different supports for components of the crimping tool die, and / or

[0010] - simplification of assembly, and / or

[0011] - Reliably ensuring the desired operating position of the crimping pliers die. Furthermore, the object of the present invention is to propose a crimping pliers having a correspondingly improved crimping pliers die.

[0012] According to the present invention, the object of the present invention is achieved by the features of the preferred embodiment. Other preferred designs of the present invention can be derived from the optional embodiments.

[0013] The present invention proposes a crimping pliers mold having two mold half units. The two mold half units are guided relative to each other over the crimping stroke by means of a guide device. These mold half units each have a mold half, which forms a crimping surface that directly interacts with the workpiece for applying a crimping force to the workpiece. In the crimping pliers mold of the present invention, the guide device has at least one guide rod retained on one mold half unit. The guide rod is guided in a guide notch of the other mold half unit. Here, the guide rod and the guide notch can have any cross-section, as long as it can be ensured that they are longitudinally guided over the crimping stroke. Preferably, the guide rod and the guide notch have a (partially) circular cross-section.

[0014] It is also possible to provide two guide rods that are guided in corresponding guide recesses. Here, the two guide rods can be provided in one mold half, while the two guide recesses are arranged in the other mold half. However, it is also possible for each mold half to have a guide rod and a guide recess.

[0015] According to EP 0 516 598 B1, the mold halves are bulky and have large-area crimping surfaces. The crimping surfaces in EP 0 516 598 B1 are hereby formed continuously. The continuous crimping surface of one mold half in EP 0 516 598 B1 is formed convexly, while the crimping surface of the other mold half in EP 0 516 598 B1 is formed concavely. In contrast, according to the present invention, it is proposed to use another type of mold half in a mold half unit with a guide device (e.g., corresponding to EP 0 516 598 B1), namely a mold half that each has a plurality of ribs. The ribs of the mold halves then fit into each other and have a fitting extension that varies over the crimping stroke. In this case, the crimping surfaces of the mold halves are formed by the end faces of the ribs. As a result, this type of die half does not produce a large-area continuous extrusion of the workpiece between the die halves, but rather the extrusion takes place in a plurality of mutually spaced-apart partial regions in the region of the end faces of the spaced-apart ribs of the die halves. The use of this type of die half has proven to be advantageous for a particular type of workpiece, in particular for the extrusion of cable end sleeves with cables. Die halves with such mutually fitting ribs are disclosed, for example, by the tool named "CS 10-AE 22" by the applicant or by the documents EP 3 179 580 A1, US 4,283,933 A and US 6,151,950 A. Surprisingly, it was found that this known die half with mutually fitting ribs can also be used for crimping pliers dies with a guide device for the die half unit, as disclosed, for example, by EP 0 516 598 B1.

[0016] According to EP 0 516 598 B1, one mold half has a base plate from which one mold extends toward the other mold half. According to EP 0 516 598 B1, the mold plate has guide notches on one side of the mold, while according to EP 0 516 598 B1, a guide rod is fixed to the base plate on the other side of the mold contour. In contrast, in a first variant of the present invention, the guide rod is formed by the thickened end region of at least one rib of one mold half. The connection of the guide rod to the at least one rib of the mold half can be made in place of or in addition to the connection of the guide rod to the base plate. However, forming the guide rod by the thickened end region of the at least one rib results in a particularly compact design. This simplifies manufacturing because the guide rod can be manufactured as an integral component of the at least one rib. It is also possible to reduce assembly effort and the component diversity of the crimping tool mold. Instead, the guide rod can be connected to the plate-shaped base of the rib in the direction of the crimping axis over at least a portion of the rib's extension, thereby providing a particularly rigid support. As a result, the guide rod is not held in a freely suspended manner on the base plate, so that the guiding accuracy can be increased and its mechanical strength can be increased.

[0017] Alternatively or additionally, it is also possible for the second variant of the invention for the guide notch to be formed by a guide notch region or connecting region, which is arranged in the end region of at least one rib and preferably connects the end regions of two ribs of one mold half. In this case, the guide notch region forms at least a cylindrical segment-shaped guide surface and a guide notch delimited by this guide surface, wherein the guide notch is open at its edges in cross section, i.e., toward the intermediate space between the two ribs. The guide notch region thus has a cylindrical segment-shaped guide surface, along which the guide rod is guided. In this case, the cylindrical segment has a cylindrical segment angle greater than 180° (preferably greater than 200°, greater than 220°, greater than 240°, greater than 260°, or greater than 280°). This can result in support being achieved in an orthogonal direction in a plane transverse to the guide axis by means of the cylindrical segment-shaped guide surface. The connection of the guide notch region to the two ribs ensures a very rigid support.

[0018] These mold halves (as well as other structural elements of the crimping pliers mold) can be manufactured by means of any manufacturing method, for example by means of a casting method, an injection molding method and / or a manufacturing method that removes material or mills. A special proposal of the present invention is to construct the mold halves as powder injection molded parts. The powder injection molding method is also known as the PIM method (corresponding to the English powder injection molding) or the MIM method (corresponding to the English metal injection molding), which is a molding method for manufacturing metal components. In the powder injection molding method, fine metal powder is mixed with an organic binder and molded in an injection molding machine. The organic solvent is then removed and the component is sintered at high temperature in a furnace. After manufacturing by the injection molding method, any further processing may also be performed. It has been shown that the powder injection molding method is advantageous for the production of complex geometries of mold halves and multiple ribs and / or guide devices arranged parallel to each other.

[0019] In another embodiment of the present invention, at least one mold half has a support portion. By means of this support portion, the mold half can be pivotally mounted on the associated jaw. Mounting is performed with a pivot axis arranged perpendicular to the pivot plane of the jaw. By fully utilizing the degrees of freedom provided by the pivot axes of the two mold halves, the mold halves can be aligned relative to each other on the jaws so that the guide rods are arranged coaxially with the guide recesses. This allows the mold halves to be inserted into each other, firstly by inserting the guide rods into the guide recesses and, if necessary, by engaging the ribs with each other.

[0020] In principle, the support part can be designed as a pivot pin according to EP 0 516 598 B1, which is accommodated in the support eye of the pliers jaw. According to another proposal of the present invention, if the support part has a support body, assembly is particularly simple and the required structural elements are reduced. In this case, the support body has a guide surface in the form of a cylindrical segment, which has a guide diameter. In addition, the support body has a placement surface. In the area of ​​the placement surface, the extension of the support body is smaller than the guide diameter. If the support body is then to be inserted through the edge opening of the support eye of the pliers jaw, which is open at the edge in cross section, the support body of the support part is twisted so that the support body can be inserted into the support eye with a smaller extension in the area of ​​the placement surface through the edge opening. Then, if the support body is in the support eye, it is twisted so that the larger guide diameter of the cylindrical segment-shaped guide surface comes into play, so that the support body can no longer escape from the edge opening. For this purpose, the edge opening of the support eye of the pliers jaw has an extent which is smaller than the guide diameter and larger than the extent of the support body in the region of the placement surface.

[0021] In one configuration of the crimping pliers die, the die half unit has a holding body, which can also form the support part or the holding body can also hold the support part. In this embodiment, the die half is supported on the holding body by a rotary bearing. In this case, the rotary bearing has an axis of rotation, which is oriented parallel to the guide axis of the guide rod and / or the guide notch. As a result, the axis of rotation is parallel to or coaxial with the guide axis of the guide device. In this case, the axis of rotation can be consistent with the crimping axis of the crimping pliers. By means of the rotary bearing, it can be ensured that the die half unit is twisted together relative to the jaws in such a way that the workpiece can be inserted into the die receptacle in different directions, so that the workpiece can be inserted, for example, from the front or from the side.

[0022] It is also possible to provide a limiting or locking device between the retaining body and the mold half. This limiting or locking device then limits or locks the mold half at a predetermined relative rotation angle between the retaining body and the mold half about the rotation axis. This limiting or locking device can thus ensure the operating position of the crimping tool mold. While limiting can be released by a user applying a sufficiently large rotational force about the rotation axis, locking cannot be released simply by applying a torque about the rotation axis and requires additional manual operation of an unlocking element.

[0023] Here, it is possible that the retaining body and the mold half have a guide surface. The guide surface is oriented perpendicular to the axis of rotation. During rotation around the axis of rotation, the retaining body and the mold half are guided relative to each other on the guide surface. On the other hand, the guide surface can also be used to support the crimping force between the retaining body and the mold half. In this case, one guide surface has a notch. Then, a limiting element or locking element is arranged in the notch, and the limiting element or locking element is loaded by a preloaded spring. Then, the other guide surface has a limiting notch or locking notch. Then, in the relative rotation angle predetermined by the mold half relative to the retaining body, the limiting element or locking element is (at least partially) arranged in the assigned limiting notch or locking notch, thereby providing limiting or locking. In this way, limiting or locking can be provided reliably with a simple structure.

[0024] In principle, the rotary bearing for rotatably supporting the retaining body relative to the mold half can be designed in any manner. According to one proposal of the present invention, to form this rotary bearing, the retaining body has a supporting projection. This supporting projection is oriented parallel to the guide axis of the guide rods and / or guide notches of the mold half units. This supporting projection extends through the rotary bearing hole of the mold half and has an axial securing element. Thus, a material region of the mold half can be captured between the base or base plate of the retaining body and the axial securing element, thereby preventing the supporting projection from axially dislodging from the rotary bearing hole of the mold half. For example, the mold half can have a side gap between the end facing the retaining body and the crimping surface. The end region of the supporting projection can then have an annular groove. When the supporting projection is placed in the rotary bearing hole of the mold half, the annular groove on the end side of the supporting projection can be accessed through the side gap, and an axial securing element, configured as a securing ring, can then be inserted through the side gap and locked into the annular groove.

[0025] For some configurations, it is desirable to provide an insertion stop on the crimping pliers or the crimping pliers die, which assists in inserting the workpiece into the die receptacle. Preferably, the insertion stop predetermines how close or far the workpiece can be inserted into the die receptacle along the longitudinal axis of the workpiece. One proposal of the present invention provides for the insertion stop to be provided on the die half unit. It is also possible for the insertion stop to be provided on the die half or to be integrally formed with the die half. This is advantageous, for example, when the die half is supported rotatably relative to the holding body by a rotary bearing about a rotation axis oriented parallel to the crimping axis. With this configuration, if the rotation angle between the holding body and the die half is changed, the insertion stop rotates with it. This has the advantage that the insertion stop can be used regardless of the relative rotation angle set or used by the user.

[0026] The present invention also includes embodiments in which only one insertion stop is arranged in a fixed position relative to the mold half unit or mold half. It is also possible that the insertion stop is adjustable. For a particular configuration of the crimping pliers mold, there is a stop body, in particular a stop disc. If a stop disc is mentioned below, it may also refer to any other rotatable stop body (and vice versa). The stop body is rotatably supported on one mold half about a stop body rotation axis via a stop body rotation bearing. The stop body rotation axis is oriented parallel to or coaxially with the longitudinal axis or the receiving axis of the mold receptacle. The stop body has multiple insertion stops that are adapted to different workpieces, such as different sizes and / or axial lengths of cable end sleeves. As a result, the different insertion stops can predetermine the insertion depth of the workpiece into the mold receptacle. The insertion stops are arranged (regularly or irregularly) distributed around the circumference and the stop body rotation axis. Then, by twisting the stop body around the stop body's rotation axis, different insertion stops can be brought into play, so that the user can adapt the crimping pliers mold (for example, by adapting the insertion depth) to different workpieces by twisting the stop body, in particular to cable core end sleeves of different types or sizes.

[0027] The rotational position of the stop body may be secured by friction locking or in some other manner. One configuration of the crimping pliers die includes a stop body limiting device or a stop body locking device. The stop body limiting device or the stop body locking device limits or locks the stop body at a predetermined stop body rotation angle relative to the die half, thereby securing the operating position of the stop body.

[0028] There are many possibilities for the configuration of the stop body limiting device or the stop body locking device. According to one suggestion of the present invention, the stop body and the mold half each have a stop body guide surface. The stop body guide surface is oriented perpendicular to the stop body rotation axis. During rotation around the stop body rotation axis, the stop body and the mold half are guided relative to each other on the stop body guide surface. In this case, one stop body guide surface has a notch. A spring-loaded stop body limiting element or stop body locking element is arranged in the notch. The other stop body guide surface has a plurality of stop body limiting notches or stop body locking notches. The stop body limiting element or stop body locking element is at least partially arranged in the stop body limiting notch or stop body locking notch in a predetermined relative stop body rotation angle for limiting or locking, and in this stop body rotation angle, the insertion stop configured for this stop body rotation angle is arranged in the correct position relative to the mold accommodating portion. In this way, the operating position of the stop body predetermined by the user can be ensured.

[0029] There are also various possibilities for the type of shape of the stop body rotation bearing. One possible configuration is proposed in which the mold half has a stop body support projection. This stop body support projection extends through the stop body rotation bearing hole of the stop body. On the side of the stop body facing away from the mold half, the stop body support projection has an axial securing element, which can be a securing ring accommodated in an annular groove of the stop body support projection. With this configuration, the stop body can be axially captured between the base of the mold half and the axial securing element, thereby providing a safety against the stop body support projection coming out of the stop body.

[0030] It is possible that in the crimping pliers mold, the mold half units are constructed in different ways. The differences can relate, on the one hand, to the shape of the mold contour and the crimping surface. However, it is entirely possible that the guide devices or other components or the shape standards of the mold half units are different from each other. To give just one example, which does not limit the invention, one mold half unit can have two guide rods, while the mold half unit has no guide notches, and the other mold half unit can then have only guide notches. However, for a special configuration of the present invention, the two mold half units, the two supporting parts and / or the two mold halves are constructed identically, thereby reducing the diversity of components, reducing manufacturing costs, ensuring greater interchangeability and also reducing storage costs.

[0031] Another solution to the task of the present invention is a crimping pliers. In this crimping pliers, a die half unit of a crimping pliers die, which is constituted as described above, is held on the jaws of the crimping pliers.

[0032] In principle, the crimping pliers die can be used on crimping pliers of any design, for example

[0033] - Manipulation kinematics,

[0034] -Equipment of electronic structural units,

[0035] - Integration of sensors for detecting crimping displacement and / or crimping force,

[0036] - Positive locking device,

[0037] - the possibility to replace the crimping pliers dies,

[0038] - ratchet drive transmission,

[0039] - the ability to divide the entire crimping stroke into at least two partial crimping strokes, with an associated closing movement of the hand lever and subsequently opening and closing the hand lever again in the next partial crimping stroke

[0040] And other aspects.

[0041] In one embodiment of the present invention, at least one die half in the crimping pliers is supported by a force-displacement compensating element. This force-displacement compensating element provides targeted elasticity in the path of the operating force applied by the user to the handle of the crimping pliers to the jaws and die half. This elasticity can be used to increase the range of possible workpiece geometries that can be crimped using the crimping pliers and the same die half. In principle, if the crimping pliers are designed for crimping workpieces with relatively small geometries, when crimping workpieces with larger geometries using the crimping pliers and the same die half, the required crimping force can be generated before the handle is fully closed. Therefore, without the force-displacement compensating element, the handle would not reach the closed position. However, if a positive locking device is also used in the crimping pliers, this closed position must be reached before the crimping pliers can be opened again. Thus, when a force-displacement compensating element is used, a further increased actuating force can be generated on the crimping pliers in order to elastically yield the force-displacement compensating element, so that the handle can be completely closed, thereby allowing the handle to be opened again by the positive locking device. For possible configurations of such a force-displacement compensating element, reference may be made, for example, to the force-displacement compensating elements disclosed in EP 3 012 923 B1 or EP 0 732 779 B1, EP 0 158 611 B1, DE 31 09 289 C2, DE 20 2012 102 561 U1, DE 20 2009 005 811 U1, DE 10 2013 100 801 A1, and EP 2 905 848 B1.

[0042] Advantageous further developments of the invention are apparent from the exemplary embodiments, the description and the accompanying drawings.

[0043] The advantages of the features and combinations of features mentioned in the description are merely exemplary and may act alternatively or cumulatively, without necessarily requiring that the advantages be achieved by embodiments of the present invention.

[0044] The following applies to the disclosure of the original application documents and patents (not the scope of protection): Additional features are derived from the drawings, in particular the geometric shapes shown and the relative dimensions of the multiple components relative to each other, as well as their relative arrangement and functional connection. The combination of features of different embodiments of the present invention or features of different claims can also be different from the selective reference relationship of the claims and is provided here. This also applies to features that are shown in separate drawings or mentioned in their descriptions. These features can also be combined with features of different claims. For other embodiments of the present invention, features listed in the claims can also be omitted, but this does not apply to independent claims of the granted patent.

[0045] Reference to the number of features in the claims and description should be understood to mean that exactly that number or a greater number than that number is present, without the specific use of the adverb "at least." This means, for example, that when a reference is made to an element, it is understood that exactly one, two, or more elements are present. These features may be supplemented by other features or constitute the sole features of the respective product.

[0046] The reference signs included in the claims do not limit the scope of the subject matter protected by the claims. These reference signs are only used to make the claims easier to understand. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The invention is explained and described in greater detail below with reference to preferred exemplary embodiments shown in the drawings.

[0048] Figure 1 The crimping tool die is shown in a three-dimensional exploded view;

[0049] Figure 2 Shown in a perspective exploded view from another direction Figure 1 Crimping pliers die in;

[0050] Figure 3 The assembled Figure 1 and Figure 2 Crimping pliers die in;

[0051] Figure 4 A schematic diagram shows a partial cross section of a crimping pliers having Figures 1 to 3 Crimping pliers die in;

[0052] Figure 5 Show Figure 4 Detail IV of the crimping pliers in the connection area where the crimping pliers die connects to the crimping pliers jaws;

[0053] Figure 6 The crimping pliers are shown in a perspective exploded view. Figures 1 to 3 Crimping pliers die in;

[0054] Figure 7 The assembled Figure 6 A perspective view of a crimping tool die without a front fixed jaw portion plate;

[0055] Figure 8 The crimping pliers are shown with the hand lever and jaws in an open position;

[0056] Figure 9 Show Figure 8 Crimping pliers in FIG, with the hand lever and the pliers jaws in the closed position. DETAILED DESCRIPTION

[0057] In the present description of the figures, identical or similar structural elements are sometimes designated by the same reference numerals, wherein these structural elements can be distinguished from one another by additional letters a, b, .... Therefore, reference to a structural element with or without an additional letter refers to one such structural element, a plurality of structural elements, or all structural elements.

[0058] Figure 1 A crimping tool die 1 is shown in a perspective exploded view. The crimping tool die 1 comprises an upper die half 2 and a lower die half 3. The upper and lower die half are identical in construction, so that the following description primarily refers to the die half 2, with corresponding descriptions also applying to the other die half 3.

[0059] The mold half unit 2 has a holding body 4 and a mold half 5 .

[0060] The holding body has a support part 6 with a support body 7 and stops 8, 9, which are designed here as webs 10, 11 arranged on both sides of the support body 7. The support body 7 and the stops 8, 9 of the support part 6 are arranged on the side of the holding body 4 facing away from the mold half 5.

[0061] On the side facing the mold half 5, the retaining body 4 forms a guide surface 12. Extending from this guide surface 12 are at least one recess 13, 14, which is configured here as a blind hole 15, 16. A spring 17 and a limiting element 18, here a limiting ball 19, are supported on the bottom of this recess 14 via the spring 17. Depending on the installation situation, the spring 17 and limiting element 18 can also be arranged in the other recess 13, or a spring with an associated limiting element can be arranged in both recesses 13, 14.

[0062] The support body 7 has a guide surface 20 in the form of a cylinder segment and a support surface 21 , which can be a flattened portion 22 , for example.

[0063] On the side facing the holding body 4, the mold half 5 has a guide surface 23. In the assembled state, the guide surface 23 of the mold half 5 rests against the guide surface 12 of the holding body 4, wherein the crimping force between the mold half 5 and the holding body 4 is also supported by these guide surfaces 12, 23. On the other hand, these guide surfaces 12, 23 ensure guidance during relative rotation of the mold half 5 relative to the holding body 4 (this guidance will be explained below) and ensure the desired orientation of the mold half 5 relative to the holding body 4 (preferably in the direction of the crimping axis 105) regardless of this relative rotation.

[0064] Limiting notches 24a, 24b, etc. extend from the guide surface 23 of the mold half 5. These limiting notches 24 are configured as blind holes or through holes in the base plate 25 of the mold half 5. To limit the relative rotation angle between the retaining body 4 and the mold half 5, the limiting element 18 can be pressed from the retaining body 4 into the limiting notches 24 of the mold half 5 by a spring 17 and (at least partially) enters the limiting notches 24, thereby ensuring the relative rotation angle between the mold half 5 and the retaining body 4.

[0065] Extending from the base plate 26 of the holding body 4 is a bearing projection 27, which is designed here as a pin and has an annular groove 29 on the side facing away from the base plate 26. In the assembled state, the bearing projection 27 is accommodated in a rotary bearing bore 30 in the mold half 5. In the assembled state, the bearing projection 27 extends to a side slot 31 in the mold half 5. Through this slot 31, the annular groove 29 of the bearing projection 27 is accessible from the outside. An axial securing element 32 (here, a securing ring 33) can be connected to the bearing projection 27 via the side slot 31 by snapping into the annular groove 29 if the securing element 32 is designed as a securing ring 33. This ensures that the bearing projection 27 of the holding body 4 cannot fall out of the mold half 5.

[0066] By accommodating the support protrusion 27 of the holding body 4 in the rotational support hole 30, a rotational bearing 34 is formed. This rotational bearing 34 allows the mold half 5 to rotate relative to the holding body 4 about a rotational axis 35 oriented parallel to or coaxial with the crimping axis 105. By inserting the limiting element 19 into one of the limiting notches 24a, 24b, etc., different relative rotational angles between the holding body 4 and the mold half 5 about the rotational axis 35 can be ensured, thereby forming a limiting device 36.

[0067] The mold half 5 has a plurality of plate-shaped ribs 37a, 37b, etc., arranged parallel to each other at equal intervals. The ribs 37 extend perpendicular to the base plate 25 of the mold half 5. The ribs 37 extend parallel to the rotation axis 5 and the crimping axis 105. The spacing between the ribs 37a, 37b, etc. is slightly greater than the thickness of the ribs 37a, 37b, etc. All ribs 37a, 37b, etc. have the same thickness. The ribs 37a, 37b, etc. of the mold halves 5 of the two mold halves 2, 3 can be moved into one another, with the ribs 37 of the mold half 5 of one mold half 2 being arranged in the spaces between the ribs 37 of the mold half 5 of the other mold half 3. Preferably, the ribs 37 of the mold halves 5 of the mold halves 2, 3 abut each other as tightly as possible, but with slight friction, so that a transition fit or clearance fit can be achieved. This allows for relative movement of the ribs 37 in the direction of the crimping axis 105 and the rotation axis 35. In any case, there is a small amount of play for the relative movement of the holding bodies 4 of the mold halves 2 , 3 in a direction perpendicular to the plane of extension of the ribs 37 .

[0068] In principle, the ribs 37 are designed in the form of a right triangle when viewed in the direction of the mold receptacle 38 formed by the mold halves 5. The sides defining the right angles of the triangle are alternately connected to the base plate 25 of the mold halves 5, which results in the crimping surfaces 39, 40 of adjacent ribs 37 forming a V-shape or a right angle. The crimping surfaces 39, 40 of the two mold halves 5 of the mold half units 2, 3 define the mold receptacle 38 in the mold. Figure 2 Here, the size of the die receptacle 38 can be reduced over the crimping stroke by the relative movement of the die halves 2, 3 in the direction of the crimping axis 105, but the square, rectangular or rhombus geometry is still maintained.

[0069] To form the die receptacles 38 , the dies (except for the side surfaces with the crimping surfaces 39 , 40 ) have a substantially square outer geometry, which is open in the region of the spaces between the ribs 37 .

[0070] A (preferably central) rib 37 extends beyond the square outer geometry with a strip- or plate-shaped extension 41 and end-side thickenings 42. The thickening 42 forms a guide rod 43. This guide rod 43 is connected to the associated rib 37 via the extension 41 over the entire extension of the rib 37 in the direction of the crimping axis 105. The extension 41 and the thickening 42 have a constant cross-section in the direction of the crimping axis 105, formed in the region of the extension 41 by two parallel guide surfaces. In the region of the thickening 42, the cross-section is designed as a partial circle, so that the guide rod 43 forms a guide surface 44 in the form of a cylindrical segment.

[0071] On the opposite side, two ribs 37 (which directly abut or adjoin the rib 37 forming the guide rod 43) form a connecting region or guide notch region 45 arranged outside the square geometry. Here, the guide notch region 45 has two plate-shaped or strip-shaped extensions 46, 47 and a guide notch region 48. The extensions 46, 47 form guide surfaces arranged parallel to one another, while the guide notch regions are located internally and form a guide surface 49 in the shape of a cylindrical segment. This guide surface 49 forms a guide notch 50 or (open-edged) guide hole. The guide notch region 45 extends over the entire extent of the associated rib 37 in the direction of the crimping axis 105 and has a constant cross-section over this entire extent.

[0072] In the assembled crimping pliers die 1, the guide rods 43 of the die half 5 of one die half unit 2 are received in the guide recesses 50 of the die half 5 of the other die half unit 3, and vice versa, to form the guide device 51. This guide device 51 ensures that:

[0073] The mold halves 5 of the two mold half units 2 , 3 are rotated jointly about the axis of rotation 35 ;

[0074] - limiting or preventing the movement of the mold halves 5 of the mold half units 2 , 3 transversely to the crimping axis 105 and in the main extension plane of the ribs 37 ; and / or

[0075] Providing support for the mold halves 5 of the mold half unit 2 , 3 in a direction perpendicular to the main extension plane of the ribs 37 .

[0076] Optionally, at least one mold half 5 of the crimping tool mold 1 may have a stop body 52. ​​The stop body 52 is designed as a stop disk. The stop body 52 is rotatably supported on the base body or rib 37 of the mold half 5 via a stop body rotation bearing 53. The stop body rotation bearing 53 has a stop body rotation axis 54 that is oriented perpendicular to the main extension plane of the rib 37. In the illustrated embodiment, the stop body rotation bearing 53 is formed as a stop body support projection 55, which extends from the base body or rib 37 of the mold half 5 and has an end-side stop body annular groove 56. The stop body 52 has a stop body rotation bearing hole 57. In the assembled state, the stop body support projection 55 of the mold half 5 extends through the stop body rotation bearing hole 57 of the stop body 52. The stop body 52 is axially fixed to the mold half 5 by an axial stop body securing element 58, here a stop body securing ring 59, which is accommodated in a stop body annular groove 56. For this purpose, the stop body 52 is axially captured between the stop body securing element 58 and the base body or rib 37 of the mold half 5.

[0077] The stop body 52 has a plurality of insertion stops 60a, 60b distributed around its circumference about its rotational axis 54. These insertion stops 60a, 60b can be brought into an operating position in different relative angular positions of the stop body 52 relative to the mold half 5 about the stop body rotational axis 54. In this operating position, each insertion stop predetermines an insertion position for inserting a workpiece into the mold receptacle 38. It is possible for the insertion stops 60a, 60b to have different through-cutouts, as shown in the figure. These through-cutouts can, for example, be conical on the side facing away from the mold half 5 or have an elongated cross section other than a circular cross section and have inclined guide surfaces. It is also possible for each insertion stop 60 to have different stop positions relative to the stop body rotational axis 54. These different stop positions result in the cable end sleeve being inserted into the mold receptacle 38 to different degrees in the operating positions of these insertion stops for different insertion stops 60. By means of these different insertion positions, it can be ensured, for example, that the inner end region of a cable end sleeve is located in a predetermined position of the mold receptacle 38 , in particular in a predetermined relative position to the ribs 37 .

[0078] Optionally, in the illustrated embodiment, the crimping tool die 1 includes a stopper retaining device 61. For this purpose, the die half 5 includes a recess 62, and a spring 63 and a stopper retaining element 64 (here configured as a retaining ball 65) are supported at the bottom of the recess via the spring 63. On the side facing the die half 5, the stopper 52 includes a plurality of stopper retaining notches 66 distributed around the circumference. In the various operating positions of the insertion stopper 60, the stopper retaining elements 64 can be retained in these retaining notches 66.

[0079] exist Figure 4 and 5 67 (without the front fixed jaw part plate) is shown in the figure, in which the die half units 2, 3 of the crimping die 1 are mounted on the jaws 68, 69. Figure 5 Detail IV of the connection area of ​​the crimping tool die 1 with the jaws 68, 69 is shown. These jaws 68, 69 each form a bearing eye 70 which, together with the supporting body 7 of the tool half 2, 3, forms a rotary bearing 71 having an axis of rotation 72 which is perpendicular to the Figure 4 and Figure 5 69. The support eye 70 has a support hole 73 with an edge opening 74. Due to the edge opening 74, the support hole 73 is designed in the shape of a cylindrical segment and has a segment angle greater than 180°, for example in the range of 190° to 240°. Therefore, the distance between the side boundaries 75, 76 of the edge opening 74 is smaller than the guide diameter of the support hole 73. In order to insert the support body 7 of the support part 6 into the support eye 70, the support body 7 of the mold half unit 2 (without the other mold half unit 3 held thereon) is relative to Figure 5 The position in the support body 7 is rotated perpendicularly to the pivot plane of the jaws 68, 69 so that the support body 7 can pass through the edge opening 74 with the support surface 21 (here, the flattened portion 22). Once the support body 7 is in the support eye 70, it is then pivoted perpendicularly to the pivot plane of the jaws 68, 69 so that the support surface 21 is arranged inside the support eye 70. For this rotation angle and the adjacent rotation angles reached during the crimping stroke, the larger guide diameter of the cylindrical segment-shaped guide surface 20 of the support body 7 prevents the support body 7 from coming out of the support eye 70. Preferably, the rotation angle of the support body 7, for which it can be inserted into and removed from the support eye 70, is selected so that it can never be reached with the crimping pliers 67 assembled with the crimping pliers die 1 held thereon, but can only be reached with the crimping pliers 67 at least partially disassembled.

[0080] Figure 6 An exploded view shows a possible configuration of a crimping pliers 67 in which the crimping pliers die 1 can be used. The crimping pliers have a fixed jaw portion 67. The fixed jaw portion 67 forms a fixed handle 68. The fixed jaw portion 67 has a front and a rear fixed jaw portion plate 79. A resilient jaw 81 is pivotally supported on the fixed jaw portion 77 via a pivot pin 80, preferably in the area of ​​the handle 78. Additionally, the resilient jaw 81 is pivotally supported on the fixed jaw portion 77 via another pivot pin 82. Alternatively, the pivot pin 82 can be arranged in the area of ​​a first longitudinal extension 83 or a second longitudinal extension 84 of the resilient jaw 81. The first longitudinal extension can, for example, correspond approximately to half of the longitudinal extension of the resilient jaw 81, while the second longitudinal extension 84 can, for example, be arranged at 1 / 3 to 1 / 4 of the distance between the resilient jaw 81 and the pivot pin 80. Thus, the elastic jaw 81 has a freely cantilevered jaw section 85, with the support eye 70 arranged in the free end region of this jaw section. The elasticity, in particular the material rigidity and / or the cross-sectional and planar moment of inertia of the elastic jaw 81 are selected such that, given a sufficiently high crimping force, an elastic bending or evasive movement of the elastic jaw 81 and the support eye 70 along with the elastic jaw 81 is possible. In this way, a force-displacement compensating element 86 can be provided.

[0081] The lever 87 is articulated in its end region to a movable jaw 90 via a pivot bearing 88 with a pivot pin 89. Furthermore, the movable jaw 90 is pivotably supported on the fixed jaw part 77 via a pivot bearing 91 with a pivot pin 92. Furthermore, the lever 87 is connected to a pressure lever 95 via a pivot bearing 93 with a pivot pin 94. The pressure lever 95 is articulated in its end region to the fixed jaw part 77 via a pivot bearing 96 with a pivot pin 97. An opening spring 104 acts between the movable jaw 90 and the elastic jaw 81. The lever 87, the pressure lever 95, and the articulation of the lever 87 on the movable jaw 90 form a toggle mechanism 98. The toggle joint 99 of this toggle mechanism 98 is formed by the pivot bearing 93, while the first toggle is formed by the pressure lever 95 in the section between the pivot bearings 93 and 96, and the second toggle is formed by the lever 87 in the section between the pivot bearings 88 and 93. The movable jaw 90 and the resilient jaw 81 each form a support eye 70 in the end region in the region of the pliers mouth. The support bodies 7 of the tool halves 2 , 3 of the crimping tool tool 1 are then mounted in these support eyes 70 .

[0082] exist Figure 6 and 7 It can be seen in FIG. 8 that the crimping pliers 87 are designed as a plate structure, wherein the individual plates can be designed in multiples.

[0083] In the illustrated embodiment, the crimping pliers 67 also have a positive locking device 100. This positive locking device 100 prevents the crimping stroke from being completed in multiple partial crimping stages, wherein after each partial crimping stage, the crimping pliers 67 cannot be opened by the positive locking device 100. Instead, the crimping pliers 67 can only be opened by the positive locking device 100 after the crimping stroke and thus all partial crimping stages have been completely completed. In the illustrated embodiment, the positive locking device 100 has an external toothing 101 of the pressure lever 95, a pawl 102, and a pawl spring 103.

[0084] Figure 8 The crimping pliers 67 are shown with the crimping pliers die 1 held thereon in the open position, while Figure 9 The crimping pliers 67 are shown in the closed position. It can be seen that in the open position, the guide rods 43 of the mold halves 2, 3 are partially arranged outside the guide recesses 50 of the mold halves 2, 3 and a large cross section of the mold receptacle 38 is obtained, while in the open position Figure 9 In this case, the guide rod 43 extends further or completely into the guide recess 50, resulting in a smaller cross section of the mold receptacle 38. The connecting axis of the rotation axes 72 of the two mold halves 2, 3 forms a crimping axis 105, in the direction of which a crimping force is generated, which is applied via the crimping surfaces 39, 40 to the circumference of the workpiece arranged in the mold receptacle 38.

[0085] The embodiment of the guide device 51 can be used for any desired embodiment of the mold half 5 , in particular also for a mold half 5 which is not designed as a rib mold with ribs 37 .

[0086] In the embodiment shown in the figures, the thickening 42 forming the guide rod 43 is formed by the lateral end region of a single rib 37. It is also possible within the scope of the invention to form the thickening 42 jointly by the lateral end regions of two directly adjacent or spaced-apart ribs 37 or a plurality of ribs 37.

[0087] In the embodiment shown in the figures, the guide recess 50 is formed by the lateral end regions of two adjacent ribs 37. It is also possible within the scope of the invention for the guide recess 50 to be formed by only one rib 37 (the lateral end region of which then surrounds the guide rod 43 from one side) or for the guide recess 50 to be formed by the end regions of two non-directly adjacent ribs 37 (or even more than two ribs 37).

[0088] In the embodiment shown in the figures, the rotary bearing 34 (which allows the die halves 5 to rotate together about the pivot axis 35) is an integral component of the crimping tool die 1 according to the present invention. The crimping tool die 1 thus formed can then be articulated to the crimping tool jaws via the retaining element 4, which in the illustrated embodiment provides an additional degree of pivoting freedom. However, the present invention also encompasses configurations of crimping tool dies with two die halves 5, in which case the crimping tool die 1 does not form the complete rotary bearing 34, but rather merely a pivoting bearing element 106 thereof. In the illustrated embodiment, this pivoting bearing element 106 can be, for example, a bearing eye, such as a pivoting bearing hole 30 (or a bearing pin).

[0089] Reference Signs List

[0090] 1 Crimping pliers die

[0091] 2 mold half units

[0092] 3 mold half units

[0093] 4 Maintain body

[0094] 5 mold halves

[0095] 6 Support part

[0096] 7 Support

[0097] 8 Stop

[0098] 9 Stop

[0099] 10 Splices

[0100] 11 Splices

[0101] 12 Guide surface

[0102] 13 Gap

[0103] 14 Gap

[0104] 15 blind holes

[0105] 16 blind holes

[0106] 17 Spring

[0107] 18 Limiting elements

[0108] 19 Limit Ball

[0109] 20 Guide surface

[0110] 21 Placement surface

[0111] 22 Leveling Department

[0112] 23 guide surface

[0113] 24 Limit gap

[0114] 25 substrate

[0115] 26 substrate

[0116] 27 Support projection

[0117] 28 Axle pin

[0118] 29 ring groove

[0119] 30 Rotation support hole

[0120] 31 Side gap

[0121] 32 safety element

[0122] 33 Safety Ring

[0123] 34 Rotary bearing

[0124] 35 Rotation axis

[0125] 36 Limit device

[0126] 37 ribs

[0127] 38 mold accommodating part

[0128] 39 crimping surface

[0129] 40 Crimp surface

[0130] 41 Extended section

[0131] 42 thickening

[0132] 43 guide rod

[0133] 44 guide surface

[0134] 45 Guide notch area

[0135] 46 Extended section

[0136] 47 Extended section

[0137] 48 Guide notch section

[0138] 49 guide surface

[0139] 50 guide notch

[0140] 51 guide device

[0141] 52 stop body

[0142] 53 Stopper body rotating bearing

[0143] 54 Stopper body rotation axis

[0144] 55 Stop body support convex part

[0145] 56 stopper body ring groove

[0146] 57 Stopper body rotation support hole

[0147] 58 Stop body safety element

[0148] 59 Stop body safety ring

[0149] 60 Insert the stopper

[0150] 61 Stopper limiting device

[0151] 62 Gap

[0152] 63 Spring

[0153] 64 stopper limiting element

[0154] 65 Limit Ball

[0155] 66 Stopper body limiting notch

[0156] 67 Crimping Pliers

[0157] 68 Jaw

[0158] 69 Jaw

[0159] 70 support eyes

[0160] 71 Rotary bearing

[0161] 72 rotation axis

[0162] 73 Support hole

[0163] 74 Edge opening

[0164] 75 Boundary

[0165] 76 Boundary

[0166] 77 Fixed clamp part

[0167] 78 fixed hand lever

[0168] 79 fixed clamp part plate

[0169] 80 Swing bolt

[0170] 81 elastic jaws

[0171] 82 Swing bolt

[0172] 83 first longitudinal extension

[0173] 84 second longitudinal extension portion

[0174] 85 jaw section

[0175] 86 Force-displacement-compensation element

[0176] 87 Hand lever

[0177] 88 Swing bearing

[0178] 89 Swing Bolt

[0179] 90 Moving jaw

[0180] 91 Swing bearing

[0181] 92 Swing bolt

[0182] 93 Swing bearing

[0183] 94 Swing Bolt

[0184] 95 pressure rod

[0185] 96 Swing bearing

[0186] 97 Swing Bolt

[0187] 98 Knuckle-joint transmission

[0188] 99 elbow

[0189] 100 Positive locking device

[0190] 101 External teeth

[0191] 102 Locking claw

[0192] 103 Lock claw spring

[0193] 104 Open Spring

[0194] 105 crimping axis

[0195] 106 Rotating support element.

Claims

1. A crimping tool die (1) comprising two die half units (2, 3) which are guided relative to each other over the crimping stroke by means of a guide device (51) and each comprise a die half (5), wherein: The guide device (51) has at least one guide rod (43) held on one mold half and guided in a guide recess (50) of the other mold half, and is characterized in that a) the crimping surfaces (39, 40) of the mold halves (5) are formed by the end sides of the mutually cooperating ribs (37), and b) The guide rod (43) is formed by a thickening (42) in the end area of ​​at least one rib (37) of one mold half (5) and / or the guide notch (50) is formed by a guide notch area (45) starting from the end area of ​​at least one rib of one mold half (5), wherein the guide notch area (45) forms a guide notch (50) with an open edge in cross section and a guide surface (49) in the form of a cylindrical segment.

2. The crimping pliers die (1) according to claim 1, wherein: At least one mold half (5) is designed as a powder injection molded part.

3. The crimping pliers die (1) according to claim 1, wherein: At least one mold half unit has a support part (6), by means of which the mold half unit can be mounted on a jaw (68, 69) so as to be pivotable about a pivot axis (72) arranged perpendicular to a pivot plane of the jaw (68, 69).

4. The crimping pliers die (1) according to claim 3, wherein: The supporting portion (6) has a supporting body (7) having a) a guide surface (20) in the form of a cylindrical segment, the guide surface having a guide diameter; and b) A support surface (21), in the region of which the extension of the support body (7) is smaller than the guide diameter.

5. Crimping tool die (1) according to any one of the preceding claims, wherein: a) the mold half unit has a holding body (4), and b) The mold half (5) is supported on the holding body (4) via a rotary bearing (34) so ​​as to be rotatable about a rotation axis (35), which is oriented parallel to the guide axis of the guide rod (43) and / or the guide recess (50).

6. The crimping pliers die (1) according to claim 5, wherein: A limiting device (36) or a locking device is arranged between the holding body (4) and the mold half (5), which limits or locks the mold half (5) in a predetermined relative rotation angle between the holding body (4) and the mold half (5) around the rotation axis (35).

7. The crimping pliers die (1) according to claim 6, wherein: a) the holding body (4) and the mold half (5) have guide surfaces (12, 23), aa) the guide surface is oriented perpendicular to the axis of rotation (35), and ab) the holding body (4) and the mold half (5) are guided relative to one another on the guide surface during the rotation about the axis of rotation (35), b) Among them, A guide surface (12) has a notch (13, 14), in which a limiting element (18) or a locking element loaded by a spring (17) is arranged, and c) The other guide surface (23) has a limiting notch or a locking notch, and the limiting element (18) or the locking element is arranged in the limiting notch or the locking notch at a predetermined relative rotation angle to perform limiting or locking.

8. The crimping pliers die (1) according to claim 5, wherein: In order to form the rotary bearing (34), the retaining body (4) has a supporting projection (27) oriented parallel to the guide axis of the guide rod (43) and / or the guide recess (50), which extends through the rotary bearing hole (30) of the mold half (5) and has an axial securing element (32).

9. The crimping pliers die (1) according to any one of claims 1 to 4, wherein: The mold half unit has an insertion stop which predetermines the extent to which a workpiece can be inserted into the mold receptacle (38) formed by the mold half (5).

10. The crimping pliers die (1) according to claim 9, wherein: There is a stopper (52) which a) being rotatably supported on a mold half (5) about a stop body rotation axis (54) via a stop body rotation bearing (53), wherein the stop body rotation axis (54) is oriented parallel to the receiving axis of the mold receiving portion (38), and b) having a plurality of insertion stops which are arranged distributed on the circumference around the axis of rotation (54) of the stop body.

11. The crimping pliers die (1) according to claim 10, wherein: There is a stop body limiting device (61) or a stop body locking device, which limits or locks the stop body (52) at a predetermined stop body rotation angle relative to the mold half (5).

12. The crimping pliers die (1) according to claim 11, wherein: a) the stop body (52) and the mold half (5) have a stop body guide surface, aa) the stop body guide surface is oriented perpendicularly to the stop body rotation axis (54), and ab) the stop body (52) and the mold half (5) are guided relative to one another on the stop body guide surface during a rotation about the stop body rotation axis (54), b) Among them, A stop body guide surface has a notch (62), a stop body limiting element (64) or a stop body locking element loaded by a spring (63) is arranged in the notch, and c) Another stop body guide surface has a stop body limiting notch or a stop body locking notch, and the stop body limiting element (64) or the stop body locking element is arranged in the stop body limiting notch or the stop body locking notch at a predetermined relative rotation angle of the stop body for limiting or locking.

13. The crimping pliers die (1) according to claim 10, wherein: In order to form the stop body rotation bearing (53), the mold half (5) has a stop body support protrusion (55), which extends through the stop body rotation bearing hole (57) of the stop body (52) and has a stop body axial securing element (58) on the side of the stop body (52) facing away from the mold half (5).

14. The crimping pliers die (1) according to any one of claims 1 to 4, wherein: a) The two mold half units (2, 3) and / or b) The two mold halves (5) Identically constructed.

15. Crimping pliers (67) having jaws (68, 69) on which the die halves (2, 3) of a crimping pliers die (1) according to any one of claims 1 to 14 are held.

16. The crimping pliers (67) according to claim 15, wherein: At least one mold half is supported by a force-displacement-compensating element (86).

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