Crimping tool die and crimping tool

Abstract

The invention relates to a crimping tool die (1) having two die half units (2, 3). The die half units (2, 3) are guided relative to one another on the crimping stroke by means of a guide (51). The crimping faces (40, 41) of the die halves (5) are formed by the end sides of mutually engaging ribs (37). Preferably, the guide (51) has a guide bar (43) formed by a thickening (42) of the end side of one rib (37) and a guide recess (50) formed by a guide recess region (45) connecting the two ribs (37) to one another. The crimping tool die (1) is used in a crimping tool which can be used, for example, for pressing-on cable core end sleeves.

Description

Technical Field

[0001] This invention relates to a crimping pliers die, designed for use in crimping pliers. The crimping pliers die has two die half units. The die half units define the boundaries of a die receiving portion with crimping faces. A workpiece, such as a cable core end sleeve (with or without an insulating ferrule), having a cable disposed therein at its edge, can be inserted into the die receiving portion. The workpiece is then crimped between the crimping halves of the die during the crimping stroke, such that the die half units and the crimping faces move towards each other along the crimping axis. Each die half unit has a rotary support element. This rotary support element is part of a rotary bearing (formed by the crimping pliers die or together with the jaws of the crimping pliers), by which torsion of the die half about a rotation axis oriented coaxially with or parallel to the crimping axis is possible. This torsion can be used to change the relative position of the mold housing with respect to the jaws, thereby allowing the workpiece to be placed into the mold housing and / or allowing the workpiece to be crimped using the crimping pliers mold in different orientations of the mold housing (and thus the workpiece) relative to the jaws, head, base and / or handle of the crimping pliers. Background Technology

[0002] Document EP 0 516 598 B1 discloses a crimping pliers die having two die halves. These die halves are each supported on the jaws by a swing pin in a support eye of the jaws, swinging about a swing axis perpendicular to the swing plane of the jaws. Each die halves has a guide rod on one side of one die and a guide notch configured as a guide hole on the other side. Thus, the guide rod of one die halves is movably guided in the direction of the crimping axis in a corresponding guide hole of the other die halves, thereby forming a torsion fixing device through which the two die halves are guided relative to each other during the crimping stroke. In the predetermined relative position of the two die halves through the torsion fixing device, common torsion of the two die halves about a rotation axis coaxial with the crimping axis can be achieved. Therefore, depending on the rotation angle of the mold half unit around the rotation axis, the orientation of the longitudinal axis of the mold receiving portion, defined by the two mold halves, can be achieved in both the first and second rotational positions. In the first rotational position, the mold receiving portion is oriented in the longitudinal direction of the crimping clamp and extends in the swing plane of the clamp jaws. In the second rotational position, the mold receiving portion is oriented perpendicular to the swing plane of the clamp jaws. In the first rotational position, the workpiece can be inserted into the crimping clamp from the front and into the mold receiving portion of the crimping clamp, while in the second rotational position, the workpiece can be inserted into the mold receiving portion from the side.

[0003] Documents WO 2019 / 105704 A1 and WO 2019 / 105703 A1 also disclose this type of crimping pliers mold, which can be torsionalally held on the jaws of the crimping pliers about a rotation axis oriented parallel to the crimping axis by means of a rotary bearing.

[0004] Further prior art is disclosed by EP 3 012 924 A1 and DE 10 2007 005 176A1. Summary of the Invention

[0005] The object of this invention is to provide a crimping pliers that is particularly improved in terms of operation and / or ensuring the desired crimping result. Furthermore, the object of this invention is to provide a crimping pliers with correspondingly improved crimping pliers molds.

[0006] According to the present invention, the objective of the invention is achieved through the features of the preferred embodiments. Other preferred designs of the invention can be derived from the alternative embodiments.

[0007] This invention relates to a crimping pliers die having two die half units. Each die half unit has die halves that are movable relative to each other along a crimping axis during the crimping stroke. Each die half unit has a rotary support element that ensures the die half can twist about a rotation axis oriented coaxially to or parallel to the crimping axis. For example, the rotary support element may be a support pin of the die half unit oriented coaxially to the rotation axis, which is received in a support eye of the jaws or a support body supported on the jaws of the crimping pliers. Alternatively, the rotary support element of the die half unit may be a support eye into which a support pin of the jaws or a support pin of the jaw retainer extends. In this case, the rotary bearing that provides the rotation axis and ensures the twisting of the die half is formed jointly by the crimping pliers die and other components. However, it is entirely possible that the rotary bearing that ensures the twisting of the die half about the rotation axis is an integral part of the die half unit, thereby eliminating the need for additional measures to connect the crimping pliers die to the jaws to achieve twisting about the rotation axis.

[0008] According to the invention, a stop body, particularly a stop plate, is provided on the crimping pliers die. Here, the stop body is rotatably supported on one of the two die halves via a stop body rotation bearing about a stop body rotation axis. Here, the stop body rotation axis is parallel to or coaxial with the receiving axis of the die receiving portion formed by the die half unit. The stop body has at least two insertion stops distributed around the stop body rotation axis on its periphery, wherein the distance between them and the stop body rotation axis preferably corresponds to the distance between the die receiving portion and the stop body rotation axis. Within the framework of the invention, the insertion stops can be regularly or irregularly distributed around the stop body rotation axis on its periphery. The insertion stops provide insertion assistance for placing the workpiece into the die receiving portion. Preferably, the insertion stops can pre-determine the distance at which the workpiece is placed into the die receiving portion in the direction of its longitudinal axis. Different insertion stops can be matched to different workpieces crimped using the crimping pliers die, such as different sizes and / or axial lengths of cable core end sleeves. Therefore, different insertion stops can be used to predetermine the insertion depth of the workpiece into the mold housing. Then, by twisting the stop body about its rotation axis, different insertion stops can be activated, allowing the user to adapt the crimping pliers mold (e.g., by adjusting the insertion depth) to different workpieces, particularly to different types or sizes of cable core end sleeves, by twisting the stop body. According to the invention, the corresponding insertion stops can be used regardless of the relative rotation angle of the mold housing set or used by the user.

[0009] It is possible that the rotational position of the stop body is ensured by friction locking or other means. For one configuration of the crimping die, there is a stop body limiting device or a stop body locking device. This stop body limiting device or stop body locking device limits or locks the stop body within a predetermined stop body rotation angle relative to the die half, thereby ensuring the operating position of the stop body.

[0010] There are several possibilities for the stop limiting device or stop locking device. In one proposal of the invention, the stop and the mold half each have a stop guide surface. This stop guide surface is oriented perpendicular to the rotation axis of the stop. During rotation about the rotation axis of the stop, the stop and the mold half are guided relative to each other on this stop guide surface. In this case, one stop guide surface has a notch. A spring-loaded stop limiting element or stop locking element is arranged in this notch. The other stop guide surface has multiple stop limiting notches or stop locking notches. The stop limiting element or stop locking element is at least partially arranged in the stop limiting notch or stop locking notch at a predetermined relative stop rotation angle for limiting or locking, in which the insertion stop configured for the stop rotation angle is positioned correctly with respect to the mold receiving portion. In this way, the operating position of the stop can be pre-defined by the user.

[0011] There are several possibilities regarding the design of the stop body rotary bearing. One possible configuration suggests that the mold half has a stop body support protrusion. This stop body support protrusion extends through the stop body rotary bearing hole of the stop body. On the side of the stop body opposite to the mold half, the stop body support protrusion has an axial locking element, which can be a locking ring received in an annular groove of the stop body support protrusion. In this configuration, the stop body can be axially secured between the base of the mold half and the axial locking element, thereby providing a safety mechanism to prevent the stop body support protrusion from disengaging from the stop body.

[0012] The present invention also proposes that the two die half units (specifically the die half) can be guided relative to each other during the pressing stroke by means of a guide device. This guide device, for example, ensures that the two die half units oscillate together about a rotation axis oriented coaxially with or parallel to the pressing axis. On the other hand, the guide device enables relative guidance between these die half units, thereby ultimately improving the accuracy of the pressing result. Here, the guide device can be constructed, for example, as disclosed in the prior art described at the beginning of this invention.

[0013] In a particular embodiment of the invention, the guiding device has at least one guide rod held on one mold half unit. The guide rod is guided in a guide notch in the other mold half unit. Here, the guide rod and the guide notch can have any cross-section, as long as they can ensure longitudinal guidance during the pressing stroke. Preferably, the guide rod and the guide notch have a (partially) circular cross-section.

[0014] Alternatively, two guide rods may be provided, which are guided in corresponding guide notches. Here, the two guide rods could be located in one mold half-unit, while the two guide notches are arranged in the other mold half-unit. However, it is also possible that each mold half-unit has its own guide rod and guide notch.

[0015] In this regard, the crimping pliers of the present invention may also correspond, for example, to the crimping pliers disclosed in document EP 0 516 598 B1. However, according to EP 0 516 598 B1, the pliers half is bulkily constructed with a large area of ​​crimping surface. The crimping surface in EP 0 516 598 B1 is thus continuously constructed. The continuous crimping surface of one pliers half in EP 0 516 598 B1 is convex, while the crimping surface of the other pliers half in EP 0 516 598 B1 is concave. Instead, according to the present invention, it is proposed to employ another type of pliers half in a pliers half unit with a guiding device (e.g., corresponding to EP 0 516 598 B1), namely, pliers half having multiple ribs respectively. Thus, the ribs of the pliers half engage with each other and have an engagement extension dimension that varies over the crimping stroke. In this case, the crimping surface of the pliers half is formed by the end sides of the ribs. Therefore, this type of die half does not produce a large-area continuous extrusion of the workpiece between the die half, but rather the extrusion occurs in multiple spaced-apart partial areas on the end sides of the spaced ribs of the die half. The use of this die half has proven advantageous for a particular type of workpiece, particularly for the extrusion of cable core end sleeves and cables. Die half with such mating ribs is disclosed, for example, by the applicant's tool entitled "CS 10-AE 22" or by documents EP 3 179 580 A1, US 4,283,933A, and US 6,151,950 A. Surprisingly, this known die half with mating ribs can also be used for crimping pliers with guiding devices for die half units, as disclosed, for example, by EP 0 516 598 B1.

[0016] According to EP 0 516 598 B1, a mold half has a base plate, from which one mold extends toward another mold half. According to EP 0 516 598 B1, the base plate has a guide notch on one side of the mold, and according to EP 0 516 598 B1, a guide rod is fixed to the base plate on the other side of the mold profile. In principle, within the framework of this invention, this structure can also be adopted for the crimping clamp mold of this invention, in which the rib (or a bulky mold without ribs) is held on a base plate on one side, and the guide rod is held on the base plate from one side of the rib or mold, with the guide notch extending through the base plate. However, for a particular proposal of this invention, the guide rod is formed by a thickened end region of at least one rib of one mold half. The connection between the guide rod and the at least one rib of the mold half can be replaced or added to the connection between the guide rod and the base plate. However, by forming the guide rod from the thickened end region of the at least one rib, a particularly compact design is obtained. It is possible to simplify manufacturing, as the guide rod can be manufactured as an integral part of the at least one rib. It is also possible that this would reduce assembly costs and decrease the component diversity of the crimping die. Alternatively, the guide rod can be connected to the plate-shaped base of the rib at least a portion of its extended dimension in the direction of the crimping axis, thereby providing particularly rigid support. Thus, the guide rod is not freely cantilevered on the substrate, potentially improving guiding accuracy and increasing its mechanical strength.

[0017] Alternatively, or cumulatively, the guide notch may be formed by a guide notch region or connecting region arranged in the end region of at least one rib and preferably connecting the end regions of two ribs of a mold half. In this case, the guide notch region forms at least a cylindrical sector-shaped guide surface and forms a guide notch defined by the guide surface, wherein the guide notch opens at its edge in cross-section, i.e., opens toward the intermediate space between the two ribs. Thus, the guide notch region has a cylindrical sector-shaped guide surface on which the guide rod is guided. Here, the cylindrical sector has a cylindrical sector angle greater than 180° (preferably greater than 200°, greater than 220°, greater than 240°, greater than 260°, greater than 280°), which results in support being achieved in an orthogonal direction in a plane transverse to the guide axis by means of the cylindrical sector-shaped guide surface. Connecting the guide notch region to the two ribs ensures very rigid support.

[0018] These mold halves (and other structural elements of the crimping die) can be manufactured by any manufacturing method, such as casting, injection molding, and / or material removal or milling. A particular suggestion of the invention is to construct the mold halves as powder injection molded parts. Powder injection molding, also known as PIM (powder injection molding) or MIM (metal injection molding), relates to a molding method for manufacturing metal components. In powder injection molding, fine metal powder is mixed with an organic binder and formed in an injection molding machine. The organic binder is then removed, and the component is sintered in a furnace at a high temperature. Any further processing may be possible after manufacturing by injection molding. It has been shown that powder injection molding is advantageous for manufacturing complex geometries of mold halves and multiple parallel ribs and / or guides.

[0019] In another embodiment of the invention, at least one mold half unit has a support portion. This support portion allows the mold half unit to be pivotally mounted on an associated jaw. Here, the mounting is performed along a pivot axis arranged perpendicular to the pivot plane of the jaw. By fully utilizing the predetermined degrees of freedom through the pivot axes of the two mold half units, the mold half units can be oriented relative to each other on the jaw such that guide rods are arranged coaxially with guide notches, thereby enabling the insertion of the mold half units into each other, on the one hand, as the guide rods enter the guide notches, and on the other hand, if necessary, as the ribs engage with each other.

[0020] In principle, the support portion can be constructed as a swaying bolt according to EP 0 516 598 B1, which is received in the support eye of the jaws. For another suggestion of the invention, if the support portion has a support body, a particularly simple assembly is achieved, and the required structural elements are reduced. In this case, the support body has a cylindrical sector-shaped guide surface with a guide diameter. Furthermore, the support body also has a placement surface. In the region of the placement surface, the extension dimension of the support body is smaller than the guide diameter. Then, if the support body is to be inserted through the edge opening of the support eye, which is open at the edge in cross-section of the jaws, the support body of the support portion is twisted such that the support body can be placed into the support eye through the edge opening in the region of the placement surface with a smaller extension dimension. Then, if the support body is in the support eye, the support body is twisted such that the larger guide diameter of the cylindrical sector-shaped guide surface comes into play, thereby preventing the support body from dislodging from the edge opening. For this purpose, the edge opening of the support eye of the jaw has an extension dimension that is smaller than the guide diameter and larger than the extension dimension of the support body in the placement surface area.

[0021] In one configuration of this crimping pliers die, the die half unit has a retainer, which may also form the support portion or retain the support portion. In this embodiment, the die half is supported on the retainer by a rotary bearing. Here, the rotary bearing has a rotation axis that is parallel to the guide axis of the guide rod and / or the guide notch. Thus, the rotation axis is parallel to or coaxial with the guide axis of the guiding device. Here, the rotation axis may coincide with the crimping axis of the crimping pliers. By means of the rotary bearing, it can be ensured that the die half unit rotates together with respect to the jaws such that the workpiece can be inserted into the die receiving portion in different directions, thereby enabling the workpiece to be inserted, for example, from the front or from the side.

[0022] Alternatively, a limiting or locking device may be provided between the retainer and the mold half. This limiting or locking device then limits or locks the mold half within a predetermined relative rotation angle between the retainer and the mold half about the axis of rotation. Thus, the limiting or locking device ensures the operating position of the crimping pliers mold. Here, the limiting can be released by the user applying a sufficiently large rotational force about the axis of rotation, while the locking cannot be released simply by applying torque about the axis of rotation; instead, it requires additional manual operation of an unlocking element.

[0023] Here, it is possible that the retainer and the mold half have guide surfaces. These guide surfaces are oriented perpendicular to the axis of rotation. During rotation about this axis of rotation, the retainer and the mold half are guided relative to each other on these guide surfaces. Alternatively, the guide surfaces can also be used to support the pressing force between the retainer and the mold half. In this case, one guide surface has a notch. A limiting or locking element is then arranged in this notch, loaded by a pre-tensioned spring. The other guide surface then has a limiting or locking notch. Thus, at a predetermined relative rotation angle of the mold half relative to the retainer, the limiting or locking element (at least partially) is arranged in the corresponding limiting 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 used to rotatably support the retainer relative to the mold half can be constructed arbitrarily. In one embodiment of the invention, to form the rotary bearing, the retainer has a support protrusion. This support protrusion is oriented parallel to the guide axis of the guide rod and / or guide notch of the mold half unit. The support protrusion extends through the rotary support hole of the mold half and has an axial locking element. Thus, a material region of the mold half can be trapped between the base or substrate of the retainer and the axial locking element, thereby preventing the support protrusion from axially dislodging from the rotary support hole of the mold half. For example, the mold half may have a side gap between its end facing the retainer and the pressing surface. Thus, the end region of the support protrusion may have an annular groove. Thus, with the support protrusion positioned in the rotary support hole of the mold half, the annular groove on the end side of the support protrusion can be accessed through the side gap, and an axial locking element configured as a locking ring can then be inserted through the side gap and engaged in the annular groove.

[0025] It is possible that these die half units in the crimping pliers die are constructed in different ways. The differences may involve, in part, the die profile and the shape of the crimping surface. However, it is also entirely possible that the guiding devices or other components or styling standards of the die half units differ from each other. To illustrate merely as an example that does not limit the invention, one die half unit may have two guide rods, but this die half unit may not have a guide notch; thus, another die half unit may only have a guide notch. However, for a particular configuration of the invention, the two die half units, the two support portions, and / or the two die half units are constructed identically, thereby reducing component diversity, lowering manufacturing costs, ensuring greater replaceability, and also reducing storage costs.

[0026] Another solution to the objective of this invention is a crimping pliers. In this crimping pliers, a die half unit of the crimping pliers mold is held on the jaws of the crimping pliers, and the crimping pliers mold is configured as described above.

[0027] In principle, this crimping pliers die can be applied to crimping pliers of any structure, for example in

[0028] - Manipulation kinematics,

[0029] -Equipment of electronic structural units,

[0030] - Integration of sensors for detecting crimp displacement and / or crimp force.

[0031] - Forced locking device

[0032] - Possibility of replacing crimping pliers molds

[0033] - Ratchet drive transmission

[0034] - A mechanism capable of dividing the entire crimping stroke into at least two crimping strokes, with an associated lever closing motion, and subsequently opening and closing the lever in the next crimping stroke.

[0035] In terms of, etc.

[0036] In one configuration of the invention, at least one die half unit in the crimping clamp is supported by a force-displacement-compensation element. This force-displacement-compensation element provides targeted elasticity along the path from the operating force applied by the user to the clamp lever to the jaws and die half unit. This elasticity can be used to increase the area of ​​possible geometry of the workpieces crimped by the clamp and the same die half unit. In principle, if the crimping clamp is designed to crimp workpieces with relatively small geometries, the required crimping force is generated before the lever is fully closed when crimping workpieces with larger geometries by the clamp and the same die half unit. Therefore, without the force-displacement-compensation element, the lever will not reach the closed position. However, if a forced locking device is also used in the crimping clamp, the closed position must be reached for the crimping clamp to reopen. Therefore, when employing a force-displacement compensation element, in order to elastically yield the force-displacement compensation element, a further enhanced operating force can be generated on the crimping clamp such that the lever can be fully closed, thereby allowing the lever to be reopened via the forced locking device. Possible configurations of such a force-displacement compensation element can be referenced, for example, to the force-displacement compensation elements disclosed in EP 3 012 923 B1 or EP 0732 779 B1, EP 0 158 611 B1, DE 31 09 289 C2, DE 20 2012 102 561 U1, DE 20 2009005 811 U1, DE 10 2013 100 801 A1 and EP 2 905 848 B1.

[0037] Further advantageous aspects of the invention are derived from specific embodiments, the description, and the accompanying drawings.

[0038] The advantages of the features and combinations of features mentioned in the specification are merely exemplary and may work alternatively or cumulatively, without necessarily being enforced by embodiments of the invention.

[0039] The following applies to the disclosures in the original application documents and patents (not the scope of protection): Additional features are derived from the drawings, particularly the geometry shown and the relative dimensions of the various components relative to each other, their relative arrangement, and their functional connections. Features of different embodiments of the invention, or combinations of features from different claims, may also differ from the backreference relationships of the claims, and this is shown herein. This also applies to features shown in separate drawings or mentioned in their descriptions. These features may also be combined with features from different claims. For other embodiments of the invention, features listed in the claims may be omitted; however, this does not apply to the independent claims of an granted patent.

[0040] In the claims and description, the quantity of a feature should be understood to mean that there is exactly that quantity or more than that quantity, without the need for the specific use of the adverb "at least". That is, when referring to an element, for example, this is understood to mean that there is exactly one element, two elements, or more elements. These features may be supplemented by other features or constitute the unique features of the corresponding product.

[0041] The reference numerals included in the claims do not constitute a limitation on the scope of the subject matter protected by the claims. These reference numerals are used solely for the purpose of making the claims easier to understand. Attached Figure Description

[0042] The present invention will be further explained and described below with reference to the preferred embodiments shown in the accompanying drawings.

[0043] Figure 1 The crimping pliers mold is shown in a 3D exploded view;

[0044] Figure 2 A three-dimensional exploded view from another perspective. Figure 1 The crimping pliers mold;

[0045] Figure 3 A 3D view showing the assembled... Figure 1 and Figure 2 The crimping pliers mold;

[0046] Figure 4 A partial cross-section of the crimping pliers is shown in a simplified diagram. The crimping pliers have... Figures 1 to 3 The crimping pliers mold;

[0047] Figure 5 Show Figure 4 Detail IV of the crimping pliers in the connection area where the crimping pliers mold and the jaws of the crimping pliers are connected;

[0048] Figure 6 The crimping pliers are shown in an exploded three-dimensional view. The crimping pliers have Figures 1 to 3 The crimping pliers mold;

[0049] Figure 7 A 3D view showing the assembled... Figure 6 A perspective view of the crimping pliers mold, which does not have a front fixed clamping part plate;

[0050] Figure 8 The crimping pliers are shown with the lever and jaws in the open position;

[0051] Figure 9 Show Figure 8 The crimping clamps are in the closed position, with the handle and jaws in the closed position. Detailed Implementation

[0052] In this description of the accompanying drawings, structural elements that are identical or similar in geometry and / or function are partially referred to by the same reference numerals, wherein these structural elements may be distinguished from each other by the additional letters a, b… Thus, the presence or absence of the additional letters refers to one such structural element, multiple structural elements, or all such structural elements.

[0053] Figure 1 The crimping pliers mold 1 is shown in an exploded three-dimensional view. The crimping pliers mold 1 has an upper mold half unit 2 and a lower mold half unit 3. The upper mold half unit and the lower mold half unit have the same structure. Therefore, the following description mainly refers to the mold half unit 2, and the corresponding description is also applicable to the other mold half unit 3.

[0054] The mold half unit 2 has a retainer 4 and a mold half 5.

[0055] The retainer has a support portion 6, which has a support body 7 and stops 8 and 9, which are configured as tabs 10 and 11 arranged on both sides of the support body 7. The support body 7 and stops 8 and 9 of the support portion 6 are arranged on the side of the retainer 4 opposite to the mold half 5.

[0056] On the side facing the mold half 5, the retainer 4 forms a guide surface 12. At least one notch 13, 14 extends from the guide surface 12, and this notch is configured 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 the notch 14 by the spring 17. Depending on the installation configuration, the spring 17 and the limiting element 18 may also be arranged in another notch 13, or the spring with the associated limiting element may be arranged in both notches 13, 14.

[0057] The support 7 has a cylindrical sector-shaped guide surface 20 and a placement surface 21, which may be, for example, a flattened portion 22.

[0058] On the side facing the retainer 4, the mold half 5 has a guide surface 23. In the assembled state, the guide surface 23 of the mold half 5 abuts against the guide surface 12 of the retainer 4, wherein the pressing force is also supported between the mold half 5 and the retainer 4 by these guide surfaces 12 and 23. On the other hand, these guide surfaces 12 and 23 ensure guidance during relative torsion of the mold half 5 relative to the retainer 4 (this guidance will be described below) and these guide surfaces 12 and 23 ensure the desired orientation of the mold half 5 relative to the retainer 4 (preferably in the direction of the pressing axis 105) regardless of this relative torsion.

[0059] Limiting notches 24a, 24b… 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 retainer 4 and the mold half 5, the limiting element 18 can be pressed from the retainer 4 into the limiting notch 24 of the mold half 5 by a spring 17 and (at least partially) enter the limiting notch 24, thereby ensuring the relative rotation angle between the mold half 5 and the retainer 4.

[0060] A support protrusion 27 extends from the base plate 26 of the retainer 4. This support protrusion is configured as a pin and has an annular groove 29 on the side opposite to the base plate 26. In the assembled state, the support protrusion 27 is received in the rotation support hole 30 of the mold half 5. In the assembled state, the support protrusion 27 extends to the side slot 31 of the mold half 5. The annular groove 29 of the support protrusion 27 can be accessed from the outside through the slot 31, so that an axial safety element 32 (here, a safety ring 33) can be connected to the support protrusion 27 through the side slot 31, in such a way that, if the safety element 32 is configured as a safety ring 33, the safety ring 33 engages with the annular groove 29. In this way, it is ensured that the support protrusion 27 of the retainer 4 will not dislodge from the mold half 5.

[0061] A rotary bearing 34 is formed by accommodating the support protrusion 27 of the retainer 4 in the rotary support hole 30. This rotary bearing 34 allows the mold half 5 to rotate relative to the retainer 4 about a rotation axis 35 oriented parallel to or coaxial with the pressing axis 105. This rotation axis 35 ensures a first degree of rotational freedom for a stop 52. Different relative rotation angles between the retainer 4 and the mold half 5 about the rotation axis 35 can be ensured by the limiting element 19 entering one of the limiting notches 24a, 24b… thereby forming a limiting device 36.

[0062] The mold half 5 has a plurality of plate-shaped ribs 37a, 37b… arranged parallel to each other at equal intervals. The ribs 37 extend perpendicularly to the base plate 25 of the mold half 5. The ribs 37 extend parallel to the rotation axis 5 and the pressing axis 105. The spacing between the ribs 37a, 37b… is slightly greater than the thickness of the ribs 37a, 37b…. All the ribs 37a, 37b… have the same thickness. The ribs 37a, 37b… of the mold half 5 of the two mold half units 2 and 3 can move into each other, wherein the rib 37 of the mold half 5 of one mold half unit 2 is arranged in the middle space of the rib 37 of the mold half 5 of the other mold half unit 3. Preferably, the ribs 37 of the mold half 5 of the mold half units 2 and 3 are abutted against each other as closely as possible, but with slight friction, so that a transition fit or clearance fit can exist. Thus, these ribs 37 can move relative to each other in the direction of the pressing axis 105 and the rotation axis 35. In any case, there is a small gap in the direction perpendicular to the extension plane of the rib 37 for the relative movement of the retainer 4 of the mold half unit 2, 3.

[0063] In a view toward the mold receiving portion 38 formed by the mold half 5, the rib 37 is constructed in principle according to a right-angled triangle. Here, the sides defining the right angle of this triangle are alternately connected to the base plate 25 of the mold half 5. This results in the pressing surfaces 39 and 40 formed by adjacent ribs 37 forming a V-shape or a right angle. The pressing surfaces 39 and 40 of the two mold halves 5 of the mold half units 2 and 3 define the mold receiving portion 38 in... Figure 2 The cross-sectional profile is visible as a square, rectangle, or rhombus. Here, the size of the mold receiving portion 38 can be reduced in the pressing stroke by the relative movement of the mold half units 2 and 3 in the direction of the pressing axis 105, but the square, rectangular, or rhombus geometry is still maintained.

[0064] In order to form the mold receiving portion 38, these molds (except for the sides having pressing surfaces 39, 40) have an external geometry that is in principle square, wherein the external geometry is open in the region of the intermediate space between the ribs 37.

[0065] A (preferably central) rib 37 extends across the outer geometry of the square via a strip-shaped or plate-shaped extension section 41 and an end-side thickening 42. The thickening 42 forms a guide rod 43. The guide rod 43 is connected to the rib 37 via the extension section 41 over its entire extension dimension in the direction of the crimping axis 105. The extension section 41 and the thickening 42 have a cross-section that remains constant in the direction of the crimping axis 105, formed by two mutually parallel guide surfaces in the region of the extension section 41. In the region of the thickening 42, the cross-section is partially circular, thereby forming a cylindrical sector-shaped guide surface 44 for the guide rod 43.

[0066] On the opposite side, two ribs 37 (which directly abut or are adjacent to the ribs 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 extension sections 46, 47 and a guide notch section 48. The extension sections 46, 47 form guide surfaces arranged parallel to each other, while the guide notch section is internal and forms a cylindrical fan-shaped guide surface 49. The guide surface 49 forms a guide notch 50 or (edge-open) guide hole. The guide notch region 45 extends along the entire extension dimension of the associated ribs 37 in the direction of the crimping axis 105 and has a constant cross-section along the entire extension dimension.

[0067] In the assembled crimping die 1, to form the guide device 51, the guide rod 43 of the die half 5 of one die half unit 2 is accommodated in the guide notch 50 of the die half 5 of the other die half unit 3, and vice versa. This guide device 51 ensures that:

[0068] - The mold halves 5 of the two mold halves units 2 and 3 twist together around the rotation axis 35;

[0069] -Restrict or prohibit the movement of mold half 5 of mold half units 2 and 3 transversely to the pressing axis 105 and in the main extension plane of rib 37; and / or

[0070] - Support for the mold half 5 of the mold half units 2 and 3 is provided in a direction perpendicular to the main extension plane of rib 37.

[0071] Optionally, at least one mold half 5 of the crimping pliers mold 1 may have a stop 52. The stop 52 is preferably a stop disc and is torsionally supported on the base or rib 37 of the mold half 5 by a stop rotatable bearing 53, wherein the stop rotatable bearing 53 has a stop rotation axis 54 oriented perpendicular to the main extension plane of the rib 37. The stop rotation axis 54 ensures a second rotational degree of freedom for the stop 52. In the illustrated embodiment, the stop rotatable bearing 53 is formed as a stop support protrusion 55 extending from the base or rib 37 of the mold half 5 and having an end-side stop annular groove 56. The stop 52 has a stop rotation support hole 57. In the assembled state, the stop support protrusion 55 of the mold half 5 extends through the stop rotation support hole 57 of the stop 52. The stop 52 is axially fixed to the mold half 5 by an axial stop safety element 58 (here, a stop safety ring 59, which is received in a stop ring groove 56). For this purpose, the stop 52 is axially captured between the stop safety element 58 and the base or rib 37 of the mold half 5.

[0072] The stop body 52 has a plurality of insertion stops 60a, 60b distributed around its periphery about the rotation axis 54. These stops can be positioned in operating states at different relative angular positions of the stop body 52 with respect to the mold half 5 about the rotation axis 54, in which each insertion stop is pre-defined for inserting the workpiece into the mold receiving portion 38. It is possible that the insertion stops 60a, 60b have different through-holes, as shown in the figure. These through-holes can be, for example, constructed as a cone on the side facing away from the mold half 5, or they can have an elongated cross-section other than a circular cross-section and have inclined guide surfaces. It is also possible that each insertion stop 60 has a different stop position with respect to the rotation axis 54, wherein these different stop positions result in the cable core end being inserted into the mold half 38 to varying degrees in the operating states of the insertion stops for different insertion stops 60. Thus, by using these different placement positions, it can be ensured, for example, that the built-in end region of a cable core end sleeve is in a predetermined position of the mold receiving portion 38, particularly in a predetermined relative position to the rib 37.

[0073] Optionally, in the illustrated embodiment, the crimping pliers die 1 has a stop limiting device 61. For this purpose, the die half 5 has a notch 62, a spring 63, and a stop limiting element 64 (constructed here as a limiting ball 65) supported on the bottom of the notch by the spring 63. On the side facing the die half 5, the stop 52 has a plurality of stop limiting notches 66 distributed around its periphery, in which the stop limiting element 64 can be limited in the limiting notches 66 during different operating positions of the inserted stop 60.

[0074] exist Figure 4 and 5 The image shows a crimping pliers 67 (without a front fixed jaw plate), in which the die halves 2 and 3 of the crimping pliers die 1 are mounted on the jaws 68 and 69. Figure 5 Detail IV shows the connection area of ​​the crimping die 1 with jaws 68 and 69. These jaws 68 and 69 each form a support eye 70, which, together with the support body 7 of the die half units 2 and 3, forms a rotary bearing 71. This rotary bearing has a rotation axis 72 perpendicular to [the plane of the dies]. Figure 4 and Figure 5 The drawing plane and the swing plane perpendicular to the jaws 68, 69 are oriented. 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 constructed as a cylindrical sector shape and has a sector angle greater than 180°, for example, in the range of 190° to 240°. Therefore, the spacing 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 portion 6 into the support eye 70, the support body 7 of the mold half unit 2 (without another mold half unit 3 held thereon) is relative to Figure 5 The position of the support body 7 is twisted perpendicular to the swing plane of the jaws 68, 69 such that the support body 7 can pass through the edge opening 74 with the placement surface 21 (here, the flattening portion 22). Then, if the support body 7 is in the support eye 70, the support body 7 swings perpendicular to the swing plane of the jaws 68, 69 such that the placement surface 21 is arranged inside the support eye 70. For this rotation angle and the adjacent rotation angle traveled during the crimping stroke, the large guide diameter of the cylindrical sector-shaped guide surface 20 of the support body 7 prevents the support body 7 from dislodging from the support eye 70. Preferably, the rotation angle of the support body 7 (for which the support body can be placed into and dislodged from the support eye 70) is selected such that the rotation angle can never be reached for the assembled crimping pliers 67 with the crimping pliers mold 1 held on the crimping pliers, but can only be reached for the crimping pliers 67 that is at least partially disassembled.

[0075] Figure 6 An exploded view shows a possible configuration of a crimping pliers 67 in which a crimping pliers mold 1 can be used. The crimping pliers have a fixed jaw portion 67. This fixed jaw portion 67 forms a fixed lever 68. The fixed jaw portion 67 has front and rear fixed jaw portion plates 79. A resilient jaw 81 is preferably pivotally supported on the fixed jaw portion 77 in the region of the lever 78 by a pivot bolt 80. Additionally, the resilient jaw 81 is pivotally supported on the fixed jaw portion 77 by another pivot bolt 82. Here, alternatively, the pivot bolt 82 may be arranged in the region of a first longitudinal extension 83 or a second longitudinal extension 84 of the resilient jaw 81. The first longitudinal extension may, for example, correspond to half of the longitudinal extension of the resilient jaw 81, while the second longitudinal extension 84 may, for example, be arranged at 1 / 3 to 1 / 4 of the distance between the resilient jaw 81 and the pivot bolt 80. Thus, the resilient jaw 81 has a freely overhanging jaw section 85, with the support eye 70 disposed at the free end region of this jaw section. The elasticity of the resilient jaw 81, particularly the material rigidity and / or the moment of inertia of its cross-section and plane, is chosen such that, under sufficiently large clamping forces, the resilient jaw 81 and the support eye 70 can undergo elastic bending or avoidance movements with the resilient jaw 81. In this way, a force-displacement-compensation element 86 can be provided.

[0076] The actuator lever 87 is hinged to the movable jaw 90 in its end region via a sway bearing 88 having a sway bolt 89. Furthermore, the movable jaw 90 is swayably supported on the fixed jaw portion 77 via a sway bearing 91 having a sway bolt 92. The actuator lever 87 is also connected to the pressure rod 95 via a sway bearing 93 having a sway bolt 94. The pressure rod 95 is hinged to the fixed jaw portion 77 in its end region via a sway bearing 96 having a sway bolt 97. An opening spring 104 acts between the movable jaw 90 and the resilient jaw 81. The actuator lever 87, the pressure rod 95, and the hinge of the actuator lever 87 on the movable jaw 90 form an elbow lever transmission device 98. The elbow 99 of the elbow lever transmission device 98 is formed by the sway bearing 93, while the first elbow is formed by the pressure rod 95 in the section between the sway bearings 93 and 96, and the second elbow is formed by the actuator lever 87 in the section between the sway bearings 88 and 93. The movable jaw 90 and the elastic jaw 81 each form a support eye 70 in the end region of the jaw. Then, the support body 7 of the mold half units 2 and 3 of the crimping pliers mold 1 is assembled in these support eyes 70.

[0077] exist Figure 6 and 7 As can be seen, the crimping clamp 87 is constructed in a plate structure, in which each plate can be constructed in multiple ways.

[0078] In the illustrated embodiment, the crimping pliers 67 also have a forced locking device 100. This forced locking device 100 prevents the crimping stroke from being completed in multiple partial crimping stages, wherein opening the crimping pliers 67 via the forced locking device 100 is prohibited after each respective partial crimping stage. Instead, the crimping pliers 67 can only be opened via the forced locking device 100 after the crimping stroke and thus all partial crimping stages have been fully completed. In the illustrated embodiment, the forced locking device 100 has an external toothed portion 101 of the pressure bar 95, a locking pawl 102, and a locking pawl spring 103.

[0079] Figure 8 A crimping clamp with a crimping clamp die 1 held thereon is shown, which is in the open position, while Figure 9 The crimping clamp 67 is shown in the closed position. It can be seen that in the open position, the guide rods 43 of the mold halves 2 and 3 are partially arranged outside the guide notches 50 of the mold halves 2 and 3, resulting in a large cross-section of the mold receiving portion 38. Figure 9 In the middle, the guide rod 43 further or completely enters the guide notch 50 and obtains a small cross-section of the mold receiving portion 38. The connecting axis of the rotation axis 72 of the two mold half units 2 and 3 forms a pressing axis 105 here, and a pressing force is generated in the direction of the pressing axis. The pressing force is applied to the circumferential surface of the workpiece arranged in the mold receiving portion 38 through the pressing surfaces 39 and 40.

[0080] The configuration of the guide device 51 can be used for any configuration of the mold half 5, and in particular, it can also be used for mold half 5 that is not constructed as a rib mold with ribs 37.

[0081] In the embodiment shown in the accompanying drawings, the thickened portion 42 forming the guide rod 43 is formed by the side end region of a single rib 37. Within the framework of the invention, it is also possible that the thickened portion 42 is formed by the side end regions of two directly adjacent or spaced-apart ribs 37 or multiple ribs 37.

[0082] In the embodiment shown in the accompanying drawings, the guide notch 50 is formed by the side end regions of two adjacent ribs 37. Within the framework of the invention, it is also possible that the guide notch 50 is formed by only one rib 37 (whose side end region surrounds the guide rod 43 from one side) or that the guide notch 50 is formed by the end regions of two non-directly adjacent ribs 37 (or even more than two ribs 37).

[0083] In the embodiment shown in the accompanying drawings, the rotary bearing 34 (which allows the die half 5 to rotate together about the swing axis 35) is an integral part of the crimping pliers die 1 of the present invention. Thus, the crimping pliers die 1 formed in this way can be hinged to the jaws of the crimping pliers by the retainer 4, which, for the illustrated embodiment, provides an additional degree of swing freedom. However, the present invention also includes a configuration of a crimping pliers die having two die half units 5, in which the crimping pliers die 1 does not form a complete rotary bearing 34, but merely a rotary support element 106 of the rotary bearing 34. In the illustrated embodiment, this rotary support element 106 may be, for example, a support eye, such as a rotary support hole 30 (or a support pin).

[0084] List of reference numerals

[0085] 1. Crimping Pliers Die

[0086] 2. Mold half unit

[0087] 3. Mold half unit

[0088] 4. Maintain body

[0089] 5. Mold half

[0090] 6 Support section

[0091] 7 Support body

[0092] 8 Stop

[0093] 9 Stop

[0094] 10 stitches

[0095] 11. Piece stitching

[0096] 12 guide surfaces

[0097] 13 Gap

[0098] 14 Gap

[0099] 15 Blind Holes

[0100] 16 blind holes

[0101] 17 Springs

[0102] 18 Limiting elements

[0103] 19 Restricted Balls

[0104] 20 guide surfaces

[0105] 21 Placement surface

[0106] 22 Leveling Section

[0107] 23 Guide surface

[0108] 24 Limiting gap

[0109] 25 substrate

[0110] 26 substrate

[0111] 27 Support projection

[0112] 28 shaft pins

[0113] 29. Annular groove

[0114] 30 Rotary support hole

[0115] 31 Side gap

[0116] 32 Fuse Elements

[0117] 33 Safety Ring

[0118] 34 Rotary bearings

[0119] 35. Rotation axis

[0120] 36 Limiting devices

[0121] 37 ribs

[0122] 38 Mold Receiving Section

[0123] 39 Pressing surface

[0124] 40 Pressing surface

[0125] 41 Extended Section

[0126] 42 Thickened section

[0127] 43 Guide rod

[0128] 44 Guide surface

[0129] 45. Guiding gap area

[0130] 46 Extended Section

[0131] 47 Extended Section

[0132] 48. Guide gap section

[0133] 49 Guide surface

[0134] 50 Guiding Gap

[0135] 51 Guiding Device

[0136] 52 stop body

[0137] 53 Stop body rotary bearing

[0138] 54. Rotation axis of the stop body

[0139] 55 Stop body support convex part

[0140] 56 Stop body annular groove

[0141] 57. Rotary support hole for stop body

[0142] 58 Stop body safety element

[0143] 59 Stop body safety ring

[0144] 60. Place the stop.

[0145] 61 Stop body limiting device

[0146] 62 gaps

[0147] 63 Springs

[0148] 64 Stop body limiting element

[0149] 65 Restricted Ball

[0150] 66 Stop body limiting notch

[0151] 67 Crimping Pliers

[0152] 68 jaws

[0153] 69 jaws

[0154] 70 Support Eye

[0155] 71 Rotary bearing

[0156] 72. Axis of rotation

[0157] 73 Support Hole

[0158] 74 Edge opening

[0159] 75 Boundary

[0160] 76 Boundaries

[0161] 77 Fixed clamp section

[0162] 78 Fixed Hand Rod

[0163] 79 Fixed clamp section board

[0164] 80 Swing bolt

[0165] 81 Flexible jaws

[0166] 82 Swing bolt

[0167] 83 First longitudinal extension

[0168] 84 Second longitudinal extension

[0169] 85 Jaw segment

[0170] 86 Force-Displacement-Compensation Components

[0171] 87. Hand lever

[0172] 88 Oscillating Bearing

[0173] 89. Swing bolt

[0174] 90 moving jaw

[0175] 91 Oscillating Bearing

[0176] 92 Swing bolt

[0177] 93 Oscillating Bearing

[0178] 94 Swing bolt

[0179] 95 Compression bar

[0180] 96 Oscillating Bearing

[0181] 97. Swing bolt

[0182] 98. Elbow lever transmission device

[0183] 99 elbow joint

[0184] 100 Forced locking device

[0185] 101 External teeth

[0186] 102 Claws

[0187] 103 Locking claw spring

[0188] 104 Open the spring

[0189] 105 Crimped shaft

[0190] 106 Rotary support element.

Claims

1. A compression crimper die (1) for crimping workpieces, having: - a die half (5) a) two mold half units (2, 3) having mold halves (5), wherein aa) a degree of freedom for a relative movement to each other along a crimping axis (105) on a crimping stroke, and ab) a rotary bearing element (106) each, which ensures a twisting of the die half (5) about a rotary axis (35) oriented coaxially or parallel to the crimping axis (105), b) a die receptacle (38) which prespecifies a receptacle axis and is formed by the die half (5), c) a stop body (52), and d) a stop body rotary bearing (53) by means of which the stop body (52) is rotatably supported on a die half (5) about a stop body rotary axis (54), wherein the stop body rotary axis (54) is oriented parallel or coaxially to the receptacle axis of the die receptacle (38), e) wherein the stop body (52) has at least two put-in stops (60a, 60b,...) which are arranged distributed on a circumference about the stop body rotary axis (54), and f) the stop body (52) has a first and a second rotational degree of freedom, and fa) the first rotational degree of freedom is provided by the rotary bearing element (106) and ensures a twisting of the stop body (52) about the rotary axis (35) together with the die half (5), and fb) the second rotational degree of freedom is provided by the stop body rotary bearing (53) and ensures a twisting of the stop body (52) about the rotary axis (35) relative to the die half (5), g) stop body limiting means (61) or stop body locking means which limit or lock the stop body (52) in a predetermined stop body rotational angle relative to the die half (5), h) the stop body (52) and the die half (5) have a stop body guide surface each, ha) the stop body guide surfaces are oriented perpendicular to the stop body rotary axis (54), and hb) during a rotation about the stop body rotary axis (54), the stop body (52) and the die half (5) are guided relative to each other on the stop body guide surfaces, i) wherein one stop body guide surface has an indentation (62) in which a stop body limiting element (64) or a stop body locking element loaded by a spring (63) is arranged, and j) the other stop body guide surface has a stop body limiting indentation (66a, 66b,...) or a stop body locking indentation in which the stop body limiting element (64) or the stop body locking element is arranged in a predetermined, opposite stop body rotational angle for limiting or locking. ​ 2. The crimping tool die (1) according to claim 1, wherein The stop body rotary bearing (53) has a stop body support protrusion (55) which extends through a stop body rotary support bore (57) of the stop body (52) and has an axial securing element (58) on a side of the stop body (52) facing away from the mold half (5).

3. The crimping tool die (1) according to claim 1, wherein The mold half units (2, 3) are guided relative to one another on a crimping stroke by means of a guide device (51), wherein the guide device (51) has at least one guide rod (43) held on one mold half unit (2, 3), which is guided in a guide recess (50) of the other mold half unit (3; 2).

4. The crimping tool die (1) according to claim 1, wherein The crimping faces (39, 40) of the mold halves (5) are formed by end sides of mutually engaging ribs (37).

5. The crimping tool die (1) according to claim 3, wherein The crimping faces (39, 40) of the mold halves (5) are formed by end sides of mutually engaging ribs (37).

6. The crimping tool die (1) according to claim 5, wherein The guide rod (43) is formed by a thickening (42) in an end region of at least one rib (37) of one mold half (5).

7. The crimping tool die (1) according to claim 5, wherein The guide recess (50) is formed by a guide recess region (45) starting from an end region of at least one rib (37) of one mold half (5), wherein the guide recess region (45) forms a guide recess (50) which has a cylindrical sector-shaped guide face (49) which is open-edged in cross section.

8. The crimping tool die (1) according to any one of the preceding claims 1 to 7, wherein At least one mold half unit (2; 3) has a support portion (6) by means of which the mold half unit (2; 3) can be mounted pivotably on a jaw (68; 69) about a pivot axis (72) which is arranged perpendicular to a pivot plane of the jaw (68; 69).

9. The crimping tool die (1) according to claim 8, wherein The support portion (6) has a support body (7) which has a cylindrical sector-shaped guide face (20) having a guide diameter and a placement face (21) in the region of which the support body (7) has an extension which is smaller than the guide diameter.

10. Crimping jaw mold (1) according to one of claims 1 to 7, wherein a) the mold half units (2; 3) have a holder body (4), and b) the mold halves (5) are torsionally supported on the holder body (4) about the rotary axis (35) by means of a rotary bearing (34).

11. The crimping tool die (1) according to claim 10, wherein Between the holder body (4) and the mold halves (5) a limiting device (36) or a locking device is arranged which limits or locks the mold halves (5) between the holder body (4) and the mold halves (5) in a predetermined relative rotation angle about the rotary axis (35).

12. Crimping jaw mold (1) according to claim 11, wherein a) the holder body (4) and the mold halves (5) have guide faces (12; 23), respectively, aa) the guide faces are oriented perpendicular to the rotary axis (35), and ab) during rotation about the rotary axis (35) the holder body (4) and the mold halves (5) are guided relative to one another on the guide faces, b) wherein One guide surface (12) has a recess (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 recess (24) or a locking recess, in which the limiting element (18) or the locking element is arranged for limiting or locking in a predetermined relative angle of rotation.

13. The crimping tool die (1) according to claim 10, wherein, In order to form the rotary bearing (34), the holding body (4) has a bearing lug (27) which extends through a rotary bearing bore (30) of the mold half (5) and has an axial securing element (32).

14. A crimping pliers (67) having a pliers jaw (68, 69) on which a mold half unit (2, 3) of a crimping pliers mold (1) according to any one of claims 1 to 7 is held.

15. A crimping pliers (67) having a pliers jaw (68, 69) on which a mold half unit (2, 3) of a crimping pliers mold (1) according to claim 8 is held.

16. The crimping pliers (67) according to claim 14, wherein At least one mold half unit (2; 3) is supported by a force-displacement-compensating element (86).

Images