BG113534A - Assembly for a single crimping tool and a crimping tool thereof - Google Patents

Abstract

The invention relates to an assembly (10) of a single crimping tool for producing a single connection of a single crimp contact (50) to an electrical conductor (54), comprising: an anvil (20) having a receiving section, in particular a first groove (210) for receiving the crimp contact (50) coupled to the electrical conductor (54) and for coupling the crimp contact (50) to the electrical conductor (54) by interaction of the anvil (20) with a crimper, wherein the receiving section, in particular the first groove (210), has a first linear axis (220) in the direction of longitudinal extension of the receiving section, in particular in the direction of the longitudinal extension of the first groove (210), a support post (30) which is structurally separated from the anvil (20) and which has a second groove (310) for receiving the crimp contact tip (51) extending beyond the first groove (210), wherein the second groove (310) has a second linear axis (320) in the direction of the longitudinal extension of the second groove (310), wherein the anvil (20) and the support post (30) are adjustable relative to each other so that the first linear axis (220) and the second linear axis (320) form a common linear axis, and wherein the second groove (310) is designed so that one end (52) of the crimp contact tip (51) has a single offset from the second linear axis (320) of at most about 3 degrees in the horizontal plane (H) after crimping. The invention further relates to an assembly (10) with such a crimping tool. According to the invention, the crimping tool, respectively the assembly solves the problem of providing a single assembly and a single crimping tool with which the quality of the crimped contact can be improved.

Description

KNOT FOR ONE CRIMPING TOOL AND TOOL FOR

CRIMPING

Technical area

The invention relates to an assembly for a crimping tool for making a connection from a crimped contact with an electrical wire, as well as a crimping tool.

Level of technique

Crimping tools are used to create a geometric and force electrical and mechanical connection between a contact and an electrical conductor by crimping. Contacts that are connected to a single electrical conductor by crimping are referred to as crimp contacts in the context of this application.

In crimping, an electrical conductor, for example strands or bundles of strands, is placed inside a deformable portion of the crimped contact of a crimping tool assembly. This knot includes an anvil and a crimper. A portion of the crimp contact located on the anvil is deformed in a controlled manner using a crimper to connect the crimp contact to the wire.

The anvil has a receiving section, usually a groove, for defined correct positioning when receiving the part of the crimp contact to be deformed with a linear axis, the press contact being installed in the receiving section, in particular in the groove during crimping. If the receiving section is designed as a groove, the cross-section of the groove is usually conformed to the outer contour of the crimped contact to be deformed. If the receiving section is not designed as a groove, in particular if the anvil is flat, then the receiving section is shaped as a portion of the flat surface of the anvil, for example so that the part of the crimp contact to be deformed is placed in a certain orientation in determined a specific point on that surface so that a longitudinal direction can be determined for that portion of the anvil surface that corresponds to the determined alignment of the crimped contact portion. In particular, even if the anvil does not have a receiving section designed as a groove, a linear axis for example, can be defined for a flat receiving station.

During crimping, the entire crimped contact is not placed on the anvil. One free end portion of the crimp contact regularly protrudes beyond the anvil, while another end portion is attached to a conveyor belt.

Crimping causes plastic deformation of the crimped contact, resulting in a stable electrical and mechanical connection between the crimped contact and the conductor. In addition, during crimping, material displacement occurs due to plastic deformation, for example in the longitudinal direction of the crimped contact. In particular, the free end portion of the crimp contact that is not located in the anvil groove, also called the tip of the crimp contact, can be deviated from the linear axis of the anvil.

Various prior art solutions for avoiding deviation from a horizontal plane are known which include linear axes. For example, EP 3 422 492 A1 discloses a holding device for a crimped contact having a holding device to hold the crimped contact in the groove during crimping. This is intended to reduce or avoid deflection of the crimp contact in a vertical plane. One end of the crimp contact protrudes from the retainer.

Furthermore, US 2018/109058 discloses a holding device which is designed in one piece with a crimper to hold the crimp contact in a groove covered by the crimper during crimping.

Description of the invention

The object of the invention is to provide a node and a crimping tool with which the quality of the crimped connection can be improved.

The task is solved by the subject matter of the independent claims. Advantageous embodiments of the invention are set forth in the dependent claims, the description, and the accompanying figures. In particular, the independent claims of one claim category may also be developed analogously to the dependent claims of another claim category. Additional embodiments and developments result from the dependent claims and from the description with reference to the figures.

The present invention includes an assembly of a crimping tool for producing a connection of a crimped contact with an electrical wire comprising an anvil having a receiving section, in particular a first groove for receiving the crimped contact connected to the electrical wire and for connecting the crimped contact to the electrical conductor by interaction of the anvil with a crimper, wherein the receiving section, in particular the first groove has a first linear axis in the direction of the longitudinal extension of the receiving section, in particular in the direction of the longitudinal extension of the first groove , as a support post that is structurally separate from the anvil and that has a second groove for receiving the crimp contact tip extending outside the first groove, wherein the second groove has a second linear axis in the direction of the longitudinal extension of the second groove, wherein the anvil and the support stand are adjustable relative to each other so that the first linear axis and c said linear axis form a common linear axis and wherein the second groove is designed such that one end of the crimped contact tip is offset from the second linear axis by at most about 3°, in particular at most about 2°, after crimping in a horizontal plane.

By implementing the support stand as a separate node, the flexibility of the group of nodes, respectively of the crimping tool, is increased. If the support post is damaged, eg worn, or if one crimped contact needs to be converted to another, the support post can be easily replaced and simply adjusted to the anvil.

Furthermore, the nature of the second groove of the support post ensures that not only is deflection in the vertical plane avoided, but deflection in the horizontal plane is also avoided. This avoids problems in later stages of the process where bent crimp contact ends are unfavorable and may have to be discarded. In particular, by means of such assemblies it is ensured that the crimped contact can subsequently be installed correctly and without problems. Therefore, such a solution can significantly reduce scraps during crimping.

The anvil is the component that applies the opposite force to the crimper during the crimping process, so plastic deformation of the crimping area of the crimped contact may occur. The receiving section located on the anvil, in particular the first groove, with the first linear axis in the longitudinal direction, may have a cross-section which is adapted to the outer contour of the crimped contact. In particular, this cross-section can be designed so that the outer contour of the crimped contact area to be deformed by crimping lies flat relative to the cross-section of the receiving section, in particular relative to the first groove.

During crimping, the tip of the crimped contact protrudes from the receiving section, in particular from the first groove of the anvil in the longitudinal direction of the groove. To limit deflection in a horizontal plane, the support post is provided with a second groove through which and in which at least a portion of the crimp contact tip is received and supported, in particular the entire portion of the crimp contact tip secured to the support post , in particular the entire tip of the crimp contact.

The support stand is provided to limit bending of the end portion of the crimp contact caused by material displacement and the necessary local application of force away from the tip of the crimp contact during horizontal plane crimping through the second groove encompassed by the support stand. The support stand is structurally separated from the anvil and absorbs significantly lower forces during crimping. In addition, the second groove also limits deflection in a vertical plane.

Since the anvil and the support post are structurally separate, these components must be adjustable relative to each other to position and/or orient the first groove contained by the anvil and the second groove contained by the support block relative to each other. Any means of regulation may be provided for this purpose. They allow the anvil and the support post to be adjusted relative to each other so that the first linear axis of the receiving section, in particular the first axis of the first groove, is aligned with the second linear axis of the second groove, or the first linear axis and the second linear axis of the second groove form a common linear axis. It is functionally important here that the crimped contact can be supported by means of the first and second grooves before crimping without being deformed, in particular that it can be accommodated in the sections of these two grooves. This ensures that the crimp contact can be properly aligned in the first groove and in the second groove before crimping. That is, the central axis of the crimped contact, in particular of the tip of the crimped contact, coincides with the common linear axis of the first and second grooves before crimping.

The center axis of the crimped contact or of the tip of the crimped contact before crimping can also be designated as the desired central axis of the crimped contact. Ideally, the central axis of the crimp contact after crimping should remain unchanged from the central axis before crimping, i.e. it is the desired central axis. However, after crimping, the central axis of the crimped contact will generally have a bend in the end portion region due to the deflection of the crimped contact end portion that actually occurs as a result of the crimping.

It is necessary to form a common linear axis for the first and second linear axes, because otherwise the crimp contact cannot be arranged in a desired position in the first and second grooves at the same time. Simultaneously locating or receiving the crimp contact in the first groove and locating or receiving the end portion of the crimp contact in the second groove, with the first groove and the second groove aligned, is necessary to ensure that the crimp contact is in one horizontal plane and does not undergoes a significant deviation.

The end portion of the crimp contact is held in a desired position during crimping by the second groove, thereby limiting the horizontal deviation of the end of the crimp contact portion to 3° or less relative to the linear axis. The end of the crimp contact tip is the end point of the crimp contact tip in its longitudinal direction. In this regard, the second linear axis is functionally identical to the central axis of the crimped contact, respectively of the tip of the crimped contact installed in the first and second grooves before crimping or to the desired central axis of the crimped contact, respectively of the tip of the crimped contact.

The nature of the second groove can be shaped in different ways so as to achieve a deviation of the crimped contact in a horizontal plane of at most about 3° with respect to the second linear axis, respectively with respect to the central axis of the crimped contact. To limit the desired deflection, clamping or retaining devices may be provided in the groove. The groove itself can also be dimensioned in such a way as to avoid a horizontal deviation of at most about 3° for the crimped contact. For this purpose, for example, the sides of the groove may have a height that is designed to absorb the lateral bending forces of the crimp contact tip and prevent the crimp contact tip from exiting the groove. Furthermore, the width of the groove can be designed in such a way that the intended part of the crimp contact tip, in particular the whole part mounted on the support post can be fitted with a precise fit in the second groove.

The angle defined between the tip end of the crimp contact with the second linear axis, respectively with the desired central axis of the crimp contact, respectively with the tip of the crimp contact can be determined as follows. The deflected end of the crimp contact tip is connected to one reference point of the crimp contact. The reference point is the point on the central axis of the crimped contact, which is located at the entrance opening of the contact area for the electrical conductor, for example, bare strands or bare bundles of strands. This line then subtends an angle with the desired central axis of the crimp contact, respectively with the second linear axis.

For one consideration in a horizontal plane, this connecting line is projected from the tip end of the crimped contact to the reference point, perpendicular to a horizontal plane in which the second linear axis, respectively the central axis, is located. For a consideration in a vertical plane, this connecting line is projected from the tip end of the crimped contact to the reference point perpendicularly on the vertical plane in which the second linear axis, respectively the central axis, is located.

According to the invention, the resulting angle for the crimped contact in a horizontal plane should be at most about 3°, in particular at most about 2° or at most about 1°. Furthermore, it is advantageous for the second groove to be designed in such a way that, possibly in cooperation with a retaining device, to achieve a crimped contact, the vertical deviation is no more than approximately 5°, preferably less than approximately 3°. In this way, the position of the crimp contact tip can be stabilized by the second groove in such a way that the horizontal and vertical deviation of the crimp contact tip is equally limited.

Depending on how the anvil is positioned relative to the support post, the second groove of the support post may connect directly to the receiving section, in particular to the first groove of the anvil. The anvil and the support stand are located so that the cross section of the first groove and the cross section of the second groove in the direction of the common linear axis are located next to each other. In this case, the cross sections of the first groove and the second groove do not necessarily need to touch because the cross sections of the first groove and the second groove are designed differently due to their different purpose.

Alternatively, the receiving section, in particular the first groove and the second groove may be spaced apart in the direction of the common linear axis. The crimp contact tip then passes freely through the gap between the first and second grooves, and only a portion of the crimp contact tip that is supported on the support post can be supported by the second groove.

In one embodiment of the assembly, the anvil has at least one anvil guide surface and/or the support post has at least one support post guide surface through which the anvil and the support post are movably guided relative to each other. If the support post and the anvil are designed as separate components, it is advantageous to guide these components relative to each other to align or align with each other in a simple and controlled manner. Guide surfaces are simply a technical means of positioning the anvil and support post in a way that is guided relative to each other. For example, a pair of guide surfaces can be provided for this purpose, with the help of which it is ensured that the first groove and the second groove always run parallel to each other and are not inclined to each other in a vertical and/or horizontal position.

In particular, the support post and the anvil may have an impact surface such as an anvil guide surface or a support post guide surface, which are then oriented parallel to each other when the first groove and the second groove are located parallel to each other. Furthermore, these impact surfaces can be designed in such a way that they can touch each other, i.e. the impact surface of the anvil faces the support post and the impact surface of the support post faces the anvil. If the two abutting impact surfaces face each other, a guided horizontal parallel movement of the first groove and the second groove relative to each other is possible in a simple manner.

In another advantageous embodiment of the assembly, the anvil has one guide surface of the anvil and the support post has one guide surface of the support post, wherein the guide surface of the anvil and the guide surface of the support post are designed so that they, when relatively close together, cause a horizontal and /or vertical self-centering of the anvil relative to the support stand such that the first linear axis and the second linear axis form a common linear axis or the first linear axis and the second linear axis are parallel vertically above each other. As a result, simple relative positioning of the anvil and support post is achieved with little effort. In addition, possible errors in the relative positioning of the anvil and the support stand are avoided, where the first and second linear axes are located in different vertically oriented planes, in other words there is a horizontal displacement of the first and second grooves. This would lead to crimping errors. The provision of self-centering guide surfaces results in reduced machining time when setting up the crimping tool, particularly during initial set-up and commissioning. In addition, higher overall resource availability is achieved as susceptibility to errors is reduced. In addition, the need for service personnel know-how to install the node is reduced.

The guide surface of the anvil and the guide surface of the support post can be mated to each other in such a way that when they approach each other, they slide so as to reach a fixed end position of the anvil to the support post. For this purpose, the guide surface of the anvil and/or the guide surface of the support stand may have corresponding chamfers or inclined flat surfaces. The guide surface of the anvil and the guide surface of the support post can be designed to achieve horizontal, vertical or combined horizontal and vertical centering of the anvil with respect to the support post.

In another embodiment of the assembly, the guide surface of the anvil is oriented perpendicular to the first linear axis, wherein at least a portion of the guide surface of the support post is oriented perpendicular to the second linear axis, wherein the guide surface of the anvil and the guide surface of the support post are positioned opposite each other, wherein the support post has a planar projection facing the anvil and positioned perpendicular to the second linear axis, wherein a section of the guide surface of the support post oriented perpendicular to the second linear axis is formed by a recess in the projection and the section is offset rearward relative to the side of the planar protrusion facing the anvil and a width of the recess corresponds to a width of an anvil guide surface located opposite the section and the anvil guide surface is located in contact with the guide state surface of the support stand.

In other words, the support post has a recess in which the anvil can only be placed in a predetermined position. This recess subtends a portion of the protrusion, the protrusion having a surface that is perpendicular to the second linear axis and faces the anvil. The recess requires a guide surface of the support post to be perpendicular to the second linear axis.

The recess may have a fit tolerance with respect to the guide surface of the anvil so that when the guide surface of the anvil is located on the guide surface of the support post, the first linear axis of the first groove and the second linear axis of the second groove are encompassed by a common linear axis or they are located at least in the same vertical plane.

The guide surface of the support stand is formed by the surface from which the anvil is guided. This includes the guide surface of the support post oriented perpendicular to the second linear axis. Additionally, it also includes the side surfaces of the protrusion limiting the recess, as well as the bottom surface that guides the anvil and/or support post.

In particular, the geometry of the anvil and the geometry of the support post may be coordinated such that the inlet surface of the anvil contacts the support post substantially more than half, preferably at least 2/3, preferably of the entire height of the support post .

In another embodiment of the assembly, the bearing post has one bearing post and one contact post that spans the second groove and is separable from the bearing post mounted on the bearing post. The contact post can be mounted demountably on the bearing block using its geometric shape. However, it may also be bolted or otherwise removably mounted on the bearing bracket. The provision of a contact post with a second groove further increases the flexibility of the assembly, as it allows to improve the adjustability of the vertical relative position of the first groove of the anvil and the second groove of the contact post. In particular, the contact stand, which is mounted in a suitable demountable manner, can be easily replaced, for example when the geometry of the second groove is changed. In addition, the shape of the contact post is generally more flexible, and the contact post can be manufactured more easily than the entire support post.

In another embodiment of the assembly, the bearing rack has one end of the bearing rack proximate the second groove and one end of the bearing rack remote from the second groove, wherein the contact rack has one end portion of the contact rack encompassing the second groove, wherein the end portion of the contact post protrudes beyond the end of the bearing post near the second groove, in particular in a vertical direction, and that the guide surface of the support post is encompassed by the contact post. This means that all structures that are potentially subject to wear due to the crimping process are located on the contact post, which is easy to replace. The end portion of the contact post may advantageously taper in a vertical direction directed away from the end of the bearing block away from the second groove. In particular, the end portion of the contact post may have a triangular, in particular triangular isosceles cross-section, perpendicular to the second linear axis, the second groove being located at the apex of the triangle facing away from the bearing post. The cross-section of the end portion of the contact post is preferably shaped symmetrically with respect to a vertical plane spanning the second linear axis.

In another embodiment of the assembly, the bearing stand has an adjusting device with which the vertical position of the contact stand relative to the anvil is adjusted, in particular in such a way that the first linear axis and the second linear axis are located in a common horizontal plane. For example, the anvil may be centered relative to the support post by means of guide surfaces such that the first linear axis and the second linear axis are extended in a common vertical plane. The height of the support stand can be adjusted relative to the height of the anvil by means of the adjustment device in such a way that the first and linear second axes form a common linear axis. In this way, the height of the contact bracket can be adjusted relative to the bearing bracket and thus also relative to the anvil. This height adjustment can be operated mechanically or electrically. It is particularly easy to provide a conical or cone-shaped hole in the bearing post through which a pin can be guided and by which the contact post can be raised and lowered relative to the bearing post.

In another embodiment of the assembly, the bearing stand, in particular in addition to the adjustment device has a fixing device, by means of which the vertical position of the contact stand relative to the anvil is fixed, in particular so that the first linear axis and the second linear axis form one common linear axis. The fixing device serves to permanently adjust the vertical relative position of the first groove and the second groove or their linear axes. If necessary, the setting device can also act as a fixing device at the same time. As a rule, height adjustment is not often required, usually only when the contact stand is changed, the anvil or crimper is changed, or the crimped contact is changed. Therefore, the secure fixation of the set vertical relative position is of particular importance, since a change, even a small one, in the relative position of the anvil relative to the contact post has a negative effect on the crimping process. For example, the locking device can be designed as a clamping screw to hold the contact post in the desired position relative to the bearing post.

In another embodiment of the assembly, the bearing post has a square bearing recess, wherein a portion of the contact post located between the end of the bearing post near the second groove and the end of the bearing post remote from the second groove is square shaped, the contact post being guided in the vertical direction by means of at least one boundary surface, preferably three boundary surfaces of the bearing recess. In this embodiment, the support stand consists of a contact stand designed as an inner part and a bearing stand designed as an outer part, the contact stand preferably being mounted in the recess of the bearing stand so that it can be guided in a vertical direction by the boundary surfaces on the recess of the bearing bracket. Adjusting the height of the contact block does not lead to a change in the horizontal position of the second groove relative to the first groove, but only to an adjustment in the relative vertical position.

According to another embodiment of the assembly, the second groove has one length, wherein a portion of the tip is located on the support post, the length of the groove being designed to accommodate the entire portion of the tip of the crimped contact on the support post, in particular the contact post . Therefore, the second groove is designed so that a part of the terminal of the crimp contact which is supported on the support post, in particular the contact post, along its entire length, i.e. from the beginning of the side of the second groove facing the anvil up to and including the end of the terminal of the crimped contact is stored by the second groove. As a result, the entire portion of the crimp contact tip supported on the support post is stabilized in a horizontal direction. This ensures that a horizontal deviation of more than 3° of the tip of the crimped contact from the second linear axis, respectively the desired central axis of the crimped contact, respectively the tip of the crimped contact is avoided. In addition, the groove may have a depth, respectively a height of the sides, which corresponds at least to the widest diameter of that part of the terminal of the crimped contact mounted on the support post. In other words, in this case, the tip portion of the crimp contact which is fixed on the support post may be completely recessed in the second groove or embedded in the second groove.

In another embodiment of the assembly, the second groove has a u-shaped cross-section and the u-shaped cross-section extends the entire length of the groove, wherein the u-shaped cross-section is adapted to the diameter of the tip of the crimp contact, so that the end of the tip of the crimped contact after crimping has a deviation in a horizontal plane of at most 3° from the second linear axis.

In a further exemplary development of the node, the u-shaped cross-section has a horizontal bottom and two sides that are perpendicular to the bottom and oriented parallel to the second linear axis, each side having a height that is greater than or equal to of 0.5 times and less than or equal to 2 times the maximum height of the crimp contact tip, the sides having a distance corresponding to the maximum width of the crimp contact tip. The greatest width of the crimp contact tip is the greatest horizontal length of the crimp contact tip perpendicular to the second linear axis. The maximum height of the crimp contact tip corresponds to the maximum vertical extension of the crimp contact tip perpendicular to the second linear axis. The nature of this groove ensures that the tip of the crimped contact is firmly held in the second groove during crimping and thereby produces the desired result of the crimping process in terms of the horizontal deviation of the tip of the crimped contact from the second linear.

It can be predicted that the diameter of the support post groove in the horizontal direction, i.e. the distance between the opposite sides of the support post groove is greater than the largest width of the crimp contact tip, so the crimp contact tip has a side clearance in the support post groove and can be located in a horizontal direction.

The task is also solved by a crimping tool comprising a knot according to one of claims 1 to 12.

Brief description of the figures

Advantageous exemplary embodiments of the invention are explained below with reference to the accompanying figures. The figures show:

Figure 1 is a perspective view of an embodiment of a node according to the invention,

Figure 2 is a top view of a relative arrangement of an anvil and support post with first and second grooves offset relative to each other;

Figure 3 is a top view of a relative arrangement of an anvil and support post having first and second grooves coaxial with each other;

Figure 4 is a perspective view of a bearing stand,

Figure 5 is a top view of a relative arrangement of an anvil and a support post, the support post including a bearing post and a contact post,

Figure 6 is a view of a bearing post with an adjusting device and a locking device, in particular a view of a bearing post with the contact post removed,

Figure 7 is a side view of a schematically shown crimp contact; and

Figure 8 is a top view of a schematically shown crimp contact,

The figures are only schematic representations and serve only to explain the invention. Elements that are the same or have the same effect are provided with the same designations throughout.

Detailed description

Figure 1 shows a perspective view including an assembly 10 of an anvil 20 and a support post 30. The anvil 20 has a receiving section which is designed as a first groove 210, wherein in the receiving part, in particular in the first groove 210, a a portion of the crimp contact that must be deformed during the crimping process is located and stored at a specified point and orientation. The receiving part of the anvil 20, namely the first groove

210, has one linear axis 220. The linear axis 220 of the first groove 210 corresponds to a centrally located longitudinal linear axis of the first groove 210.

Deviating from the exemplary embodiment shown in figure 1, in one modification it can be provided that the anvil does not have a first groove, but rather a receiving part which is designed as a section, for example, a flat bearing surface facing the crimper, which part has on the surface of the anvil, the receiving part, designed as a section with a flat surface, is located in such a way that a crimp contact is placed in a certain alignment with the part to be deformed during crimping at a certain point. The location or orientation depends, for example, on parameters such as the geometry of the crimp contact. The defined orientation of the part of the crimp contact to be crimped, to be placed at the specified point, allows to define an imaginary linear axis in one plane.

In the exemplary embodiment shown in Figure 1, the support post 30 has a second groove 310 which receives a portion of the free tip of the crimped contact protruding from the anvil 20 during crimping. The second groove 310 has a linear axis 320 which corresponds to its length in the longitudinal direction and is located centrally in the second groove 310, in particular centrally between the sides of the second groove 310.

At least during crimping, ie. during the application of a force to plastically deform the crimped sides of the crimped contact at a distance from the terminal portion of the crimped contact, the first groove 210 and the second groove 310 are arranged and aligned relative to each other such that the first linear axis 220 and the second linear axis 320 form a common linear axis. Thus, the crimped contact can be placed in both grooves 210 and 310 respectively before crimping and remain in the grooves 210 and 310 after crimping, in particular after the application of force and after the plastic deformation of the groove walls.

The anvil 20 and the support post 30 are designed as parts of the assembly 10 that are separated from each other and aligned in a certain way relative to EACH OTHER.

According to figure 1, the first groove 210 of the anvil 20 rests from the second groove 310 of the support stand 30 exclusively in the direction of the common linear axis. It is not provided laterally, ie. horizontal displacement of the first groove 210 relative to the second groove 310.

During crimping, the second groove 310 receives the tip portion of the crimp contact supported on the support post 30 in such a way that it cannot be deflected vertically downward or only slightly. Additionally, the second groove 310 receives the portion of the crimp contact tip supported on the support post 30 in such a way that it cannot be deflected horizontally or only slightly.

Therefore, the second groove 310 has one groove length, one groove width, and one wall height FH. In the present case, the second groove 310 has a substantially rectangular cross-section. The second groove 310 is dimensioned in such a way that the entire portion of the crimped contact tip supported on the support post 30 can be located in the second groove 310. The width of the second groove 310 is also designed so that the portion of the crimped contact tip a contact located on the support post 30 can be accommodated in the second groove 310 with an exact fit with only a small clearance. Furthermore, the height of the walls FH is determined in such a way that the walls of the second groove do not protrude beyond the portion of the crimp contact tip located in the second groove, so that the portion of the crimp contact tip supported in the support post 30 protrudes only slightly over the walls of the second groove. The length of the second groove does not have to be precisely matched to the length of the terminal portion of the crimped contact. On the contrary, the length of the second groove is selected so that the part of the tip of the crimp contact that can be stored on the support stand 30, including its end, can be lowered securely into the second groove 310. In particular, the length of the second groove 310 may extend the entire length of the support post 30 at the level of the first linear axis 220 .

The common linear axis of the first groove 210 and the second groove 310 coincides with one central axis of the crimped contact, respectively of the tip of the crimped contact, when the corresponding part of the crimped contact is received and supported on the first groove 210 and on the second groove 310 .

Optionally, an unshown retaining device can be additionally provided, which also counteracts the vertical deviation from the support stand 30. In this case, there follows a stabilization of the tip of the crimped contact during crimping in two dimensions - vertically and horizontally.

The angular deviation from the second linear axis 320, respectively from the central linear axis of the crimped contact refers to the connecting line of the tip end of the crimped contact with a reference point of the crimped contact.

As a rule, the reference point lying on the second linear axis 320, respectively on the central axis of the tip of the crimped contact, is formed by the position of the entrance hole of the electrical contact area for the electrical wire to be connected to the crimped contact to the second linear axis 320 or to the central axis. The second groove 310 is designed such that the maximum deviation of the tip end of the crimp contact is no more than approximately 3° in the horizontal direction relative to the central axis and no more than approximately 5° in the vertical direction relative to the central axis.

If a crimped contact with a crimped section and crimped sides of the section subject to plastic deformation is disposed on the anvil 20, the tip of the crimped contact protrudes from the first groove 210 of the anvil 20. In the present case, the second groove 310 of the support post 30 is spaced from the first groove 210 in the direction of the common linear axis. This means that the crimp contact tip is initially not supported in the first portion, while a second portion of the crimp contact tip is supported on the support post 30 by means of the second groove 310. In this case, it is provided, for example, that the crimping portion of the crimp contact is received in the first groove 210 on the anvil 20 and rests on a base of the first groove 210, and the second portion of the crimp contact tip in the second groove 310 is supported by a base of the second groove 310 on the support post 30, and that the intermediate first portion on the terminal of the crimp contact is cantilevered and not supported from above.

Alternatively, the first groove 210 and the second groove 310 may be located adjacent to each other, forming a common linear axis with their linear axes 220 and 320, respectively.

Referring to Figure 1, the bearing post 360 of the support post 30 has a stepped projection 340 that extends in the direction of the anvil 20. The flat side of the projection 340 facing the anvil 20 is oriented perpendicular to the second linear axis 320. The reverse side of the projection 340 to the anvil 20 is a recess 350. By means of this recess 350 a guide surface of the support post 330 is formed, which is spaced from the projection 340 and which is also oriented perpendicular to the second linear axis 320 and is flat.

The width of the recess 350 is selected so that a guide surface of the anvil 230 can lie flat against the guide surface of the support post 330 (Figure 2). Furthermore, the width of the recess is determined such that the first linear axis 220 and the second linear axis 320 lie in a common vertical plane when the guide surface of the anvil 230 is directed to the guide surface of the support post 330. This means that the anvil 20 can be pressed in a certain relative horizontal position of the anvil 20 and the support stand 30 only to the guide surface of the support stand 330. Thus, easy, safe and quick horizontal adjustment is possible in the sense of self-centering of the anvil 20 to the support stand 30. The self-centering is carried out by -especially between the side surfaces of the anvil and the width B of the recess due to a suitably selected fit.

The recess 350 is designed to be symmetrically shaped with respect to a vertical plane that includes the second linear axis 320. In addition, the anvil 20 is also designed symmetrically with respect to a vertical plane spanning the first linear axis 220 with respect to the guide surface 230. This ensures that when the guide surface of the anvil 230 is positioned relative to the guide surface of the support stand 330, the first and second linear axes 220 and 320 respectively are located in the same vertical plane, i.e. are parallel and essentially have no horizontal displacement relative to each other.

The support stand 30 can be made in one piece. It is preferably designed in several parts. According to Figure 1, it has a structurally separate bearing post 360 as well as contact post 370. The bearing post 360 has one end of the bearing post 361 close to the second groove 320 and one end of the bearing post 362 remote from the second groove 320. In the present case. a contact post 370 extends in a vertical direction above the end of the bearing post 361 near the second groove 310. That part of the contact post 370 that extends above the second groove 320 near the end of the bearing post 361 is referred to as the end part of the contact post 371 .

The end portion of the contact post 371 tapers symmetrically in the direction of the second groove 320 and has a triangular-shaped cross-section. The second groove 230 is formed in the corner of the triangular-shaped cross-section that faces away from the end of the bearing bracket 361 near the second groove 230 .

The bearing support 360 has one bearing recess 363 for receiving and mounting the contact support 370 on the bearing support 360. The bearing support 363 is designed as a square bearing support 363 and is adapted to the geometry of the contact support 370. In the present case, the bearing support 363 has three boundary surfaces 364 that allow the contact post 370 to be displaced in a vertical direction.

The bearing post 360 has one opening, not indicated in Figure 1, for an adjusting device and a fixing device for adjusting the vertical position of the contact post 370 to the anvil 20. In this way, the second groove 320 can be adjusted relative to the first groove 220 so that the first linear axis 220 and the second linear axis 320 form the common linear axis.

Thus, the support stand 30 shown in Figure 1 can be flexibly and easily adjusted with respect to the anvil 20, and if necessary, adjusted later. It is also easy to replace the contact stand 370 if, for example, the geometry of the machined crimp contacts changes.

In general, the support post 30 is placed vertically with respect to the anvil so that the crimped contact portion does not have a significant deviation in the vertical position, i.e. at most a slight vertical deviation from the desired position within certain limits. This setting depends in particular on the geometry of the crimped contact and on parameters such as crimp height, wire cross-section and anvil length.

Figure 2 shows a top view of a relative arrangement of the anvil 20 and the support post 30 with the first groove 210 and the second groove 310 offset relative to each other. In this image, the first groove 210 and the second groove 310 lie in a horizontal plane and are parallel to each other. However, the first linear axis 220 and the second linear axis 320 are offset relative to each other, i.e. they do not form a common linear axis. Accordingly, the first linear axis 220 and the second linear axis 320 are also not located in a common vertical plane.

By moving the anvil 20 parallel to its guide surface 230 relative to the support post 30, the first linear axis 220 and the second linear axis 320 can be aligned to form a common linear one. If the first groove 210 and the second groove 310 are located in different horizontal planes, ie. at different heights, the support post 30 must also be adjusted relative to the anvil 20 so that the first linear axis 220 and the second linear axis 320 form a common linear axis.

In Figure 2, reference numeral '311' denotes one of the walls of the second groove 310, and reference numeral '312' denotes the bottom or base of the second groove 310.

Figure 3 shows a top view of another relative arrangement of the anvil 20 and the support post 30. According to this view, the first groove 210 and the second groove 310 are arranged so that the first linear axis 220 and the second linear axis 320 form a common linear axis. This is the arrangement where the crimp contact is subjected to a crimping process, i.e. of plastic deformation of the crimping sides of the crimped section of the crimped contact.

Figure 4 shows a perspective view of the bearing post 360 of the support post 30. The contact post 370 has been removed. The bearing post 360 has one bearing recess 363 in which the contact post 370 can be mounted. The part of the contact post 370 to be located in the bearing recess 363 is adapted to the shape and extent of the bearing recess 360. The bearing recess 363 is limited by boundary surfaces 364. This boundary surface 364 acts as a guide surface for the contact post located in the bearing recess 363 in the vertical direction.

Additionally, the recess 350 of the protrusion 340 can be seen in Figure 4. The recess 350 of the protrusion 340 has a width B. The width B corresponds to the width of the guide surface of the anvil, see reference numeral 230 in Figure 1. The width B of the recess 350 is dimensioned so that the leading surface of the anvil can be located therein with as close a fit as possible. In particular, it can be located in the recess 350 in such a way that the guide surface of the anvil makes planar contact with the guide surface of the support post on the contact post, and the first and second linear axis 220, respectively 230 form a common linear axis or are arranged in a common vertical plane.

The guide surface of the support post located parallel to the guide surface of the anvil and perpendicular to the second linear axis 320 includes a contact post not shown in Figure 4. That is. the anvil is not fully inserted into the bearing recess 363, but only until it touches the contact post located in the bearing recess 363. This is also evident from the fact that the width of the recess 350 of the projection 340 is less than the width of the bearing recess 363 in the appropriate direction. I.e. the recess 350 has a smaller width B than the contact post, so that the convex part of the projection 340, visible in Figure 4, protrudes above the bearing recess 363 located in the plane perpendicular to the second linear axis 320 and prevents the contact post from coming out of the bearing recess 363. The width B of the recess 350 in the projection 340 is adapted to the width of the anvil. The width of the bearing recess 363 is adapted to the dimensions of the contact post. In a modification of the exemplary embodiment illustrated in Figure 4, the width of the recess 350 may be provided to be greater than or equal to the bearing recess 363.

Figure 5 shows an image view of an adjusting device 40 for adjusting the contact stand 370, respectively the end part of the contact stand 371, delineated by dotted lines. The bearing post 360 has a tapered adjustment hole by which vertical adjustment of the contact post 370 relative to the bearing post 360 can be effected by engagement with a pin mounted on the contact block. The tapered adjusting hole together with the pin should be considered as an adjusting device 40 for vertical adjustment of the contact post 370 relative to the bearing post 360 or relative to the anvil.

A vertical adjustment of the contact post 370 relative to the bearing post 360 made with the adjusting device 40 can be fixed using a fixing device 41. For example, this can be done using a clamping screw that clamps the contact post 370 to the bearing post 360 so that the contact post 370 is locked in the desired position relative to the bearing post 360.

Figure 6 shows a top view of the bearing post 360 with the anvil 20 inserted into the recess 350 of the projection 340. The contact post is not shown. It can be seen that the guide surface of the anvil 230 in an inserted position is oriented parallel to the not shown guide surface of the contact post.

Figure 7 shows a schematic side view of a crimp contact 50 in a vertical plane V. A cable 53 is inserted into the crimp contact 50 coming from the left side. The electrical conductor, here bare threads 54, is located in the area of the crimped contact, which is to be deformed and is intended for electrical contact. This area of the crimp contact to be deformed is located on the anvil during the crimping process or supported by the first groove.

Furthermore, Figure 7 shows one tip of the crimp contact 51 protruding from the first groove of the anvil when the crimp contact is positioned on the anvil. This crimp contact tip 51, insofar as it is mounted on the support post, is supported by the second groove to limit the horizontal and vertical deflection of one end 52 of the crimp contact tip.

The crimp contact tip 51 has one central axis M. The deviation of the end 52 of the crimp contact tip 51, here the vertical deviation, is determined with respect to a reference point R on the central axis M.

As a reference point R, the entry point of the area of the deformed crimp contact 50, which is intended to make electrical contact with the electrical conductor 54 of the cable 53, must be used. Angular inclusions with a central axis M in the vertical plane V are shown in figure 7 , as an example. They should have a maximum of about 5°, preferably a maximum of about 3°. The second groove is designed to ensure that the vertical positional deviation of the end 52 of the crimp contact tip 51 with respect to the central axis M depends on the vertical position of the bottom of the second groove and can be adjusted by vertical adjustment of the support stand.

Figure 8 shows the crimp contact 50 in a horizontal plane H. The deviation of the end 52 of the tip of the crimp contact 51 in the horizontal plane H should be determined in a manner analogous to that described for the vertical deviation in Figure 7.

The tip end 52 of the crimp contact 51 is connected to the reference point R and the included angle with respect to the central axis M is determined in a horizontal plane.

The reference point identified in Figure 7 serves as the reference point R. Figure 8 also shows some exemplary angles with the central axis M in the vertical plane. For horizontal deviation, they should be at most about 3°, preferably at most about 2° or about 1°.

Such angular deviations for the tip of the crimp contact can be provided by means of the second groove provided.

Since the devices and methods described in detail above are exemplary embodiments, they may be modified to a large extent in the usual manner by one skilled in the art without departing from the scope of the invention. In particular, the mechanical devices and the size ratios of the individual elements to each other are only exemplary.

Anvil node reference list

210 first groove

220 first axle

230 guide surface of the anvil support stand

310 second groove

311 groove sides

312 groove bottom

320 second axle

330 guide surfaces of the support stand

340 protrusion

350 dent

360 bearing stand

361 end of the bearing rack near the second groove

362 end of the bearing bracket remote from the second groove

363 bearing recess

364 bearing recess recess boundary surface

370 contact stand

371 end part of the contact stand adjusting device for the vertical relative position of the anvil support stand fixing device for fixing the vertical relative position of the anvil support stand crimped contact crimped contact tip crimped contact tip end cable electrical wire: threads

FH wall height of the second groove

In width of the guide surface of the support stand

M desired center axis of the terminal end of the crimp contact

H horizontal plane

V vertical plane

Claims (13)

PATENT CLAIMS 1. An assembly (10) of a crimping tool for making a connection of a crimped contact (50) with an electrical conductor (54), comprising: an anvil (20) having a receiving section, in particular a first groove (210) for receiving the crimp contact (50) connected to the electrical wire (54) and for connecting the crimp contact (50) to the electrical wire (54) ) by interaction of the anvil (20) is a crimper, in which the receiving section, in particular the first groove (210), has a first linear axis (220) in the direction of the longitudinal extension of the receiving section, in particular in the direction of the longitudinal extension of the first groove (210), a support post (30) which is structurally separated from the anvil (20) and which has a second groove (310) for receiving the tip of the crimp contact (51) extending outside the first groove (210), at wherein the second groove (310) has a second linear axis (320) in the direction of the longitudinal extension of the second groove (310), wherein the anvil (20) and the support post (30) are adjustable relative to each other such that the first linear axis ( 220) and the second linear axis (320) form one common linear axis, i wherein the second groove (310) is designed such that one end (52) of the crimp contact tip (51) is offset from the second linear axis (320) by at most about 3° in a horizontal plane (H) after crimping . 2. An assembly according to claim 1, wherein the anvil (20) has at least one guide surface of the anvil (230) and/or the support post (30) has at least one guide surface of the support post (330) through which the anvil (20) and the support stand (30) are movable guide relative to each other. 3. An assembly according to claim 2, wherein the anvil (20) has one guide surface of the anvil (230) and the support post (30) has one guide surface of the support post (330), wherein the guide surface of the anvil (230) and the guide surface of the support post (330) are designed so that when relatively close they cause a horizontal and/or vertical self-centering of the anvil (20) relative to the support post (30) such that the first linear axis (220) and the second linear axis ( 320) form a common linear axis or the first linear axis (220) and the second linear axis (320) are located parallel vertically above each other. 4. An assembly according to claim 3, wherein the guide surface of the anvil (230) is oriented perpendicular to the first linear axis (220), wherein at least one portion of the guide surface of the support post (330) is oriented perpendicular to the second linear axis axle (320) wherein the guide surface of the anvil (230) and the guide surface of the support post (330) are opposed to each other, wherein the support post (30) has a flat projection (340) facing the anvil (20 ) and located perpendicular to the second linear axis (320), wherein a section of the guide surface of the support stand (330) oriented perpendicular to the second linear axis (320) is formed by a recess (350) of the projection (340) and section is set back relative to the side of the planar projection (340) facing the anvil (20), and one width (B) of the recess (350) corresponds to one width of a guide an anvil surface (230) located opposite this section and the guide surface of the anvil (230) is located in contact with the guide surface of the support post (330). 5. An assembly according to one of the preceding claims, in which the support stand (30) has one bearing stand (360) and one contact stand (370) which covers the second groove (310) and is separable from the bearing stand (360), mounted on the bearing stand (360). 6. An assembly according to claim 5, wherein the bearing bracket (360) has one end of the bearing bracket (361) close to the second groove (310) and one end of the bearing bracket (362) remote from the second groove (310). wherein the contact post (370) has one end portion of the contact post (371) encompassing the second groove (310), wherein the end portion of the contact post (371) projects beyond the end of the bearing post (361) near the second groove (310) ), in particular in the vertical direction, and that the guide surface of the support post (330) is covered by the contact post (370). 7. An assembly according to one of claims 5 or 6, wherein the bearing stand (360) has an adjusting device (40) with which the vertical position of the contact stand (370) is adjusted relative to the anvil (20), in particular thus, the first linear axis (210) and the second linear axis (310) are located in a common horizontal plane (H). 8. An assembly according to one of claims 5 to 7, wherein the bearing support (360), in particular additionally to the adjustment device (40), includes a fixing device (41) by which the vertical position of the contact support (370) relative to the anvil (20) is fixed, in particular, so that the first linear axis (210) and the second linear axis (310) form a common linear axis. An assembly according to one of claims 5 to 8, wherein the bearing mount (360) has a square bearing recess (363), wherein a portion of the contact mount (370) located between the end (361) of the bearing mount (360) ), near the second groove (310) and the end (362) of the bearing post (360), remote from the second groove (310) is square shaped, the contact post (370) being guided in a vertical direction by at least one boundary surface (364 ), preferably three boundary surfaces (364) of the bearing recess (363). An assembly according to one of the preceding claims, wherein the second groove (310) has one groove length, wherein a portion of the crimp contact tip (51) is located on the support post (30), the length of the groove being designed to accommodate the entire part of the terminal of the crimped contact (51) of the support post, in particular of the contact post. An assembly according to claim 10, wherein the second groove (310) has a u-shaped cross-section and the u-shaped cross-section extends along the entire length of the groove, wherein the u-shaped cross-section is adapted to the diameter of the tip of the crimps contact (51) so that the end (52) of the tip of the crimped contact (51) after crimping in a horizontal plane (H) has a deviation of at most 3° from the second linear axis (310). An assembly according to claim 10 or 11, wherein the u-shaped cross-section has a horizontal bottom (312) and two sides (311) which are perpendicular to the bottom (312) and are oriented parallel to the second linear axis (320). , each side (311) having a height (FH) that is greater than or equal to 0.5 times and less than or equal to 2 times the maximum height of the crimp contact tip (51), such that the sides (311 ) have a distance that corresponds to the maximum width of the tip of the crimp contact (51). Crimping tool comprising a node (10) according to any one of the preceding claims.