Method for producing shielded cable
By creating gaps in the shield braid and utilizing a crimp sleeve design, the problem of shield strand protrusion is resolved, resulting in higher quality shielded cable manufacturing and reduced scrap and cost.
Patent Information
- Application Number
- CN202480019543.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-03-17
- Filing Date
- 2024-03-14
- Publication Date
- 2025-10-21
AI Technical Summary
In the prior art, the shielded strands of the shielded braid protrude from the crimping sleeve, causing quality problems such as loosening of the shielded strands and short circuits, which are difficult to effectively identify and avoid.
The free ends of the shielding braid are erected and dispersed into shape by a splitting device to form a gap to prevent the shielding strands from sticking out at the joint section of the crimping sleeve. The sleeve is crimped with a crimping tool to ensure that the shielding strands are separated. Equipment such as holding, erecting, splitting and crimping equipment is used for the operation.
The amount of shielded wire protruding from the crimping sleeve is reduced, the proportion of waste parts is reduced, loosening and short circuit of the shielded wire are avoided, and the quality of the shielded cable is improved.
Smart Images
Figure CN120826840A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a method for producing a shielded cable, a shielded cable produced thereby, a device for producing a shielded cable and a splitting device. Background Art
[0002] Shielded cables are used for many purposes, for example in automotive engineering, wherein electromagnetic influences, crosstalk or similar effects are reduced or avoided by using shielded cables.
[0003] In order to produce such shielded cables, such as coaxial cables, a support sleeve or outer conductor can be attached around the braided shield of the shielded wires of the shielded cable using a crimping process. In principle, the support sleeve or outer conductor can be a partially open crimping sleeve with free ends, which can also be referred to as crimping side walls. The free ends of the crimping sleeve are joined together by the crimping process to close the crimping sleeve, but are not superimposed, but butted together. However, this leaves at least a minimum gap between the crimping side walls, and a portion of the braided shield, such as the individual shielded wires, can protrude from the crimping sleeve, i.e., the support sleeve or outer conductor, in the region of the gap. Due to the thinness of the shielded wires and the associated testing effort, this protruding portion of the braided shield cannot be continuously or reliably identified. As a result, the shielded wires in the shielded cable may become loose, short-circuit, or suffer other quality impairments. Summary of the Invention
[0004] Therefore, the object of the present invention is to reduce or avoid the protrusion of the shielding braid, in particular the protrusion of the shielding strands thereof, using structurally simple means as possible, so as to provide a higher quality shielded cable.
[0005] This object is achieved by the subject matter of the independent claims. Advantageous developments of the invention are described in the dependent claims, the description and the drawings.
[0006] A method for producing a shielded cable is proposed. The method comprises the following steps: providing a conductor having a shield braid, the shield braid being arranged around the outer circumference of the conductor and having a plurality of shielding strands; opening the shield braid so that the shielding strands of the shield braid are no longer braided in the region of the free ends of the shielding strands; raising the free ends of the shielding strands of the opened shield braid so that the free ends extend away from the conductor in a substantially radial direction; dispersing the raised free ends of the shield braid using a splitting device so that gaps are formed in the shield braid, which gaps separate the plurality of shielding strands and / or space the shielding strands apart from one another in groups; applying a crimping sleeve around the outer circumference of the conductor and around the shield braid so that a joint section between the two free radial ends of the crimping sleeve is located in the region of the gap in the shield braid; and crimping the applied crimping sleeve using a crimping tool, in particular while minimizing or preventing the inflow of protruding shielding strands through the joint section. The crimping tool can be a known crimping tool.
[0007] A shielded cable can be a cable having at least one inner conductor, an insulation, and a shielding braid, wherein the shielding braid can be arranged around the outer circumference of the insulation of the conductor and can have a plurality of shielding strands.
[0008] This can at least reduce the amount of shielded conductors protruding from the support sleeve or crimping sleeve. This can reduce the amount of scrap, which can lead to cost savings, process improvements, etc. In particular, loosening of the shielded conductors and the resulting short circuits can be avoided.
[0009] The shielded cable to be manufactured can be, for example, a coaxial cable, a radio frequency coaxial cable, or a similar cable. This type of cable can transmit high-frequency (RF) signals from one point to another. Such cables can be used, for example, in motor vehicles or similar applications. A coaxial cable can essentially consist of multiple layers, namely an inner conductor (i.e., the conductor described herein, which can be, for example, a copper wire, via which the signal can be transmitted), a dielectric plastic insulator arranged around the copper wire, a shielding braid (i.e., a braided mesh consisting of shielding strands, such as copper or another conductive material, which protect the conductor from electromagnetic interference and, if necessary, serve as a secondary cable), and a plastic coating (jacket) as an outer layer that protects the inner layer from damage and electrically insulates it. Furthermore, the cable to be manufactured here also has an outer conductor in the form of a support sleeve or crimping sleeve.
[0010] The crimping sleeve can be electrically conductively connected to the shielding braid in the operating state, which can be achieved by a crimping process.
[0011] The braided shield can also include or consist of shielding strands that are not interwoven with one another.The shielding strands can also be arranged around the dielectric plastic insulation in different ways and methods, for example parallel to one another or interwoven with one another.
[0012] As used herein, the joining section between the two free radial ends of the crimping sleeve can be understood as meaning that, in the crimped state of the crimping sleeve, the free ends of the crimping sleeve are arranged in a butt-jointed manner, optionally with a negligible gap, for example a straight or corrugated gap, especially with regard to electromagnetic properties.
[0013] The splitting device can be immersed in the raised shielding braid and thus selectively separate the shielding braid, i.e., space adjacent raised shielding strands apart from one another by plastic bending. When the splitting device is removed, the gap formed in the shielding strands in this way can or should be substantially maintained. The gap thus created between the shielding strands can be aligned with, i.e., overlap, the joint section of the crimping sleeve. This means that the joint section and the gap can or should be aligned in the radial direction relative to the cable. In this case, the separated shielding strands can or should be bent by the splitting device so that the gap is maintained.
[0014] Erecting the free end of the braided shield can be understood as extending the free end from the braided shield in a radial direction relative to the longitudinal extension of the cable or conductor, i.e., outwardly away from the conductor. For example, erecting can be performed by guiding the conductor together with the braided shield toward an erecting device, or vice versa, by guiding the erecting device toward the braided shield, wherein the free end of the braided shield abuts the erecting device and is thereby bent and brought into an erected shape. Erecting can also be performed by other known methods, such as with the aid of compressed air or a brush.
[0015] According to an improved form, a plurality of shielded strands are divided into a first subgroup extending on a first arcuate segment of the outer circumferential surface of the conductor and a second subgroup extending on a second arcuate segment of the outer circumferential surface of the conductor by dispersed forming, and the gap between the first subgroup and the second subgroup extends on a third arcuate segment of the outer circumferential surface of the conductor.
[0016] This makes it possible particularly well to separate the shielding braid at the locations where the crimping side walls (ie the free ends of the crimping sleeves) butt, ie are spliced together, so that the corresponding areas are at least largely free of shielding strands.
[0017] In a further development, the method further comprises the step of folding the free end of the shielding braid with the gap so that the free end of the shielding braid is oriented in an opposite direction away from the free end of the conductor.
[0018] This can be done before applying the crimping sleeve by means of a raising device for raising the shielding strands or a stripping device for stripping the shielding strands, or by means of the crimping sleeve during application of the crimping sleeve.
[0019] This allows the shielding braid, provided with a gap, to be applied to the conductor and thus prepared for the application of the crimp sleeve or brought into its final position during the application of the crimp sleeve. The previously formed gap in the shielding braid, to which the crimp sleeve can or should be attached, is retained, so that the joining section of the crimp sleeve is arranged in the region of the gap.
[0020] According to a further development, the free ends of the shielding strands of the shielding braid are raised substantially at right angles to the longitudinal extension direction of the conductor. This makes the shielding braid well prepared for inserting the splitting device into the shielding braid.
[0021] In a development, the splitting device can have a bow shape, wherein the splitting device is inserted with the bow tip first between the free ends of the shielding strands of the shielding braid.
[0022] The bow can be narrowed in the region of the tip and gradually widen or thicken from there. The tip can facilitate insertion between relatively thin shielding strands, wherein further insertion of the enlarged bow facilitates the formation of gaps.
[0023] According to a development, the crimping sleeve can form the outer conductor or part of the outer conductor of the cable in combination with the braided shield. In cables of this type it is advantageous that as few as possible or no shielding strands protrude from the crimping sleeve or its joining section.
[0024] In a further development, the method further comprises the step of, after crimping the crimp sleeve, optically inspecting the joint section for shielding strands protruding between the two free radial ends of the crimp sleeve and / or other processing defects. This can be done, for example, by means of a camera, by visual inspection by a technician, or the like.
[0025] Also proposed herein is a device for manufacturing a shielded cable. The device can be a tool. The device includes a holding device configured to hold the shielded cable at the outer circumference of the holding device. The device also includes at least one erecting device configured to erect a shielding braid, which is arranged around the outer circumference of a conductor of the shielded cable and has a plurality of shielding strands, such that the free ends of the shielding strands of the shielding braid extend away from the conductor in a substantially radial direction. The device also includes a splitting device configured to disperse and shape the erected free ends of the shielding strands, thereby forming gaps in the shielding braid that separate the plurality of shielding strands and / or space them apart in groups from one another. The device also includes a crimping device configured to apply a crimping sleeve around the outer circumference of the conductor and around the shielding braid, such that a joint section between the two free radial ends of the crimping sleeve is located in the region of the gap in the shielding braid, and to crimp the crimping sleeve.
[0026] The proposed device enables the above-described method to be implemented. The cable produced thereby has no or only a small number of shielding strands protruding from the crimp sleeve, since the separation of the shielding braid and the resulting gap arranged in the region of the joining section of the crimp sleeve at least largely prevent the shielding strands from being located there when the crimp sleeve is crimped onto the cable or conductor.
[0027] Each device, i.e., a component of the device, such as a holding device, an erecting device, a splitting device, and a crimping device, can each have a suitable actuator to operate, and the actuator can be controlled by a controller. In addition, each device can be provided and / or arranged independently of one another, or can also be combined into an integrated device.
[0028] According to one refinement, the splitting device can have a bow shape, wherein the splitting device can be configured to initially be embedded into or inserted into the free end of the shielding braid with the pointed end of the bow. In the region of the pointed end, the bow tapers and gradually widens or thickens from there. The pointed end can facilitate insertion between relatively thin shielding strands, wherein further insertion of the enlarged bow promotes the formation of gaps.
[0029] The shape of the splitter can be modeled after the bow of a ship. This means that the splitter can have a point (possibly with a radius) and an edge that curves away from the point. The bow tip can be the edge. The splitter can widen away from the edge, in particular with a certain curvature. The shape of the splitter can be based on a vertical bow in shipbuilding. The shape can have a concave ending along the bow tip toward the point and a convex transition up to the width of the splitter component.
[0030] In a further development, the device can comprise a stripping device, wherein the stripping device is configured to fold over the free ends of the shielding strands of the shielding braid using the gap so that the free ends of the shielding strands of the shielding braid are oriented away from the free ends of the conductors, in particular in the opposite direction.
[0031] The device for erecting, i.e., the erecting device, and the device for folding over the shielded strands of the shielding braid, i.e., the stripping device, can be different devices or even separate devices. This allows the shielding braid, provided with a gap, to be applied to the conductor, thereby preparing for the application of the crimping sleeve. The gap initially formed in the shielding braid can be retained, while the crimping sleeve can be attached to the shielding braid, such that the crimping sleeve's joint section is arranged in the region of the gap.
[0032] The stripping device can also include a crimping sleeve or consist essentially of it. When the crimping sleeve is applied, the free ends of the shielded strands of the shielding braid can be correspondingly bent. This can be done, in particular, by moving the crimping sleeve in a direction extending along the longitudinal axis of the cable, away from the free end of the cable.
[0033] A splitting device for a device of the aforementioned type is also proposed, wherein the splitting device has a bow shape and is designed so that the splitting device narrows concavely to a point along the bow tip and has a convex transition from the bow tip of the splitting device to the component width.
[0034] Further features, advantages and application possibilities of the invention will be found in the following description of advantageous embodiments and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0035] Below, advantageous embodiments of the present invention are explained with reference to the accompanying drawings. The drawings show:
[0036] Figure 1 A side view of a shielded cable with a crimp sleeve is shown in a pre-crimp state according to one embodiment (although the strands are omitted from the figure);
[0037] Figure 2 A perspective view showing a shielded cable with a crimp sleeve in a crimped state according to one embodiment;
[0038] Figure 3 A schematic perspective view shows an apparatus for producing a shielded cable according to one embodiment;
[0039] Figure 4 A perspective view showing an apparatus for manufacturing a shielded cable according to one embodiment;
[0040] Figure 5A schematic perspective view shows an apparatus for producing a shielded cable according to one embodiment;
[0041] Figure 6 A flow chart illustrating a method for manufacturing a shielded cable according to one embodiment;
[0042] Figure 7 Another perspective view shows an apparatus for manufacturing a shielded cable according to one embodiment;
[0043] Figure 8 Another perspective view shows an apparatus for manufacturing a shielded cable according to one embodiment;
[0044] Figure 9 Another perspective view showing an apparatus for manufacturing a shielded cable according to one embodiment; and
[0045] Figure 10 A schematic diagram shows an end portion of a shielded cable after shield strands have been fanned out according to one embodiment.
[0046] The drawings are merely schematic and serve only to explain the invention. Identical or identically functioning elements are continuously provided with the same reference numerals. DETAILED DESCRIPTION
[0047] Figure 1 A side view of a shielded cable 100 is shown, which can be a high frequency (HF) cable, for example. In order to explain the present invention more clearly, Figure 1 ] The cable 100 is shown in an only partially completed state.
[0048] according to Figure 1 The cable 100 has a plurality of layers, namely: a conductor 110 or inner conductor, which can be, for example, a copper wire that can be used to transmit signals; an insulator 111, in particular a dielectric plastic insulator, which is arranged around the copper wire; a shielding braid 120, which is a braided network of shielding strands 121, which are made of, for example, copper or other conductive materials, which protect the conductor 110 from electromagnetic interference; and an outer layer 112, in particular a plastic coating, which protects the inner layer, i.e. at least the conductor 110, the insulator 111 and the shielding braid 120 from damage.
[0049] Furthermore, the cable 100 to be manufactured here has an outer conductor in the form of a support sleeve or crimp sleeve 130. The crimp sleeve 130 has two ends facing each other, which can also be referred to as crimp side walls 131. The crimp side walls 131 can be the two free radial ends 130 of the crimp sleeve 130. The crimp side walls 131 can have a serrated or meandering structure that merges into one another when the crimp side walls 131 meet, forming a joint section 132 that prevents axial shearing. In another embodiment, the crimp side walls have no structure and are essentially flat.
[0050] exist Figure 1 Schematically, gaps 122 are formed in the braided shield 120. In gaps 122, the shielded strands 121 are separated and / or spaced apart from one another in groups. The gaps 122 are oriented and / or positioned such that a joint section 132 of the crimp sleeve 130 (the joint section being formed by the confluence of the crimp side walls 131) is arranged in the region of the gaps 122, for example, overlapping therewith.
[0051] Figure 2 FIG. 1 shows a perspective view of the manufactured cable 100. Figure 1 Compared with the diagram in Figure 2 Crimp sleeve 130 is crimped onto the cable, whereby crimp side walls 131 are now closed and preferably arranged in abutment with one another. The joining sections 132 of crimp side walls 131 are located in the region of gap 122 (not visible here), which has already been embedded in shielding braid 120. Consequently, the shielding strands 121 of shielding braid 120 do not or only very little extend into joining section 132 and protrude from the crimped crimp sleeve 130. Or, in comparison to an arrangement in which joining section 132 is not arranged in the region of gap 122, at least fewer shielding strands 121 of shielding braid 120 extend into shielding section 132 and protrude from the crimped crimp sleeve 130.
[0052] Now, according to Figures 3 to 5 An apparatus 200 for manufacturing a shielded cable 100 is described.
[0053] Device 200 includes a holding device 210 configured to hold the cable 100 at its outer circumference. Furthermore, device 200 includes at least one erecting device 220 configured to erect the shielding braid 120 so that the free ends of the shielding strands 121 of the shielding braid 120 extend in a substantially radial direction away from the conductor 110. The shielding braid is arranged around the outer circumference of the conductor 110 and comprises a plurality of shielding strands 121. This means that the free ends of the shielding strands 121 extend radially away from the conductor 100. According to one embodiment, an iris-shaped device, shown merely as an example, can be used for this purpose. The device applies pressure to the shielding strands 121 at multiple locations around the circumference of the cable 100 to gradually bend the shielding strands. The iris-shaped device can be moved along the cable 100 between each pressing operation, thereby unbending the shielding strands 121 of the shielding braid 120. In another embodiment, the shielding strands 121 are bent in a different manner.
[0054] In addition, the device 200 includes a splitting device 230, which is configured according to the present invention to disperse the shielding strands 121 of the erected free ends of the shielding braid 120 so that gaps 122 are formed in the shielding braid 120, which separate and / or space the multiple shielding strands 121 apart from each other in groups.
[0055] Furthermore, the device 200 includes a crimping device 240 , which is configured to apply a crimping sleeve 130 around the outer circumference of the conductor 110 and around the shielding braid 120 , so that a joining section 132 is formed between the crimping side walls 131 of the crimping sleeve 130 in the region of the gap 122 in the shielding braid 120 , and then to crimp the crimping sleeve 130 .
[0056] exist Figure 3 In the embodiment, the cable 100 is held in the holding device 210 and the free end of the braided shield 120 has been erected by the erecting device 220 in the following manner, that is, the braided shield 120 and the erecting device 220 are brought close to each other so that the braided shield is deformed, for example bent into Figure 3 This can be achieved by peeling or running on a block, and / or as described above by gradually pressing radially along the circumference of the cable 100. In another embodiment, the braided shield 120 can also be erected in other ways, such as by means of compressed air.
[0057] Figure 4A perspective view of a splitting device 230 is shown, with the aid of which a gap 122 can be formed in the shielding braid 120. The splitting device 230 has a bow shape, wherein the splitting device 230 is designed to firstly be embedded with the tip of the bow into the free end of the shielding braid 120 or to be immersed therein, in order to disperse the erected shielding braid 120 and thus form the gap 122. A schematic diagram of the dispersed shielding strands 121 is shown in FIG. Figure 7 Described in detail in.
[0058] exist Figure 5 1 shows the cable 100 in the retaining device 210 after the gap 122 has been formed. It can be seen that the plurality of shielding strands 121 are divided by dispersed forming into a first subgroup extending on a first arcuate section of the outer circumferential surface of the conductor 110 and a second subgroup extending on a second arcuate section of the outer circumferential surface of the conductor 110, and that the gap 122 between the first subgroup and the second subgroup extends on a third arcuate section of the outer circumferential surface of the conductor 110. The two subgroups merge on the other side of the cable 100. This means that the erected shielding strands 121 have a substantially uniform distribution distributed around the circumference of the cable 100, which is interrupted in a wedge-shaped manner at the gap 122. In another embodiment, the distribution of the shielding strands 121 is not substantially uniform. In this case, the two subgroups do not merge, and additional gaps are obtained at other locations.
[0059] exist Figure 5 The figure also schematically shows a crimping device 240, by means of which the crimping sleeve 130 can be crimped onto the cable 100. First, the shielding braid 120 with the gap 122 can be folded or turned in a direction parallel to the cable 110 by means of a stripping device 221 (see, for example, FIG. Figure 7 In the depicted embodiment, the stripping device 221 is a hole-shaped device that can be pushed over the cable 100 with clearance relative to the outside. In another embodiment, the stripping device 221 can be the erection device 220 or a portion thereof. In yet another embodiment, the stripping device includes a crimping sleeve 130, and the crimping sleeve 130 is applied to the cable 100, causing the shielding braid 120 to be folded or turned over.
[0060] Now, according to the flow chart shown Figure 6 The following will explain a method for producing a shielded cable 100. The method can be performed with the aid of the apparatus 200 described above.
[0061] In step S1 , a cable 100 having a conductor 110 is provided. The conductor has a shielding braid 120 arranged around an outer circumference of the conductor 110 and having a plurality of shielding strands 121 .
[0062] In step S2, the free ends of the shielding braid 120 are raised so that the free ends of the shielding strands 121 of the shielding braid 120 extend in a substantially radial direction away from the conductor 110. In this case, the shielding braid 120 is unraveled automatically or by a separate intervention in an additional method step. The separate intervention can include pressing with a brush or a comb or compressed air or with the aid of an iris-shaped device, as described above. The raised shielding strands 121 can be, for example, Figure 7 There, the device 200 is shown with the clamped cable 100. The shielding strands 121 have been erected and the splitting device 230 has been positioned to be placed in the erected shielding strands 121.
[0063] In step S3 , the raised free ends of the shielding braid 120 are dispersed by means of the splitting device 230 , so that gaps 122 are formed in the shielding braid 120 , which separate the plurality of shielding strands 121 and / or space them apart in groups. Figure 8 The splitting device 230 is shown initially being placed into the upright shielding strands 121. The bow tip has been extended between the shielding strands, and as the splitting device 230 travels further along the longitudinal axis of the cable 100, the shielding strands 121 are subsequently unwound.
[0064] According to the invention, it is not important here that: Figures 7 to 8 The transition between FIG. 1 and FIG. 2 shows whether the bow tip is embedded laterally or whether the bow tip is placed axially (ie parallel to the conductor 110 ) into the upright shielding strand.
[0065] Figure 9 Show the basis Figure 8 The method of claim 1 is followed by a subsequent state in which the splitting device 230 has been further embedded in the erected shielding strands 121. Due to the bow shape of the splitting device 230, the shielding strands 121 have been spread out and in the area of the bow tip, i.e. starting from the edge of the splitting device 230, the shielding strands are widened, i.e. bent laterally apart from each other.
[0066] In step S4, after removing the splitting device 230, a crimp sleeve 130 is applied around the outer circumference of the conductor 110 and around the shielding braid 120, such that the crimping side walls 131 of the crimp sleeve 130 are located within the gaps 122 of the shielding braid 120. This means that, in the radial direction, the gaps 122 in the shielding strands 121 of the shielding braid 120 are aligned with the openings of the crimp sleeve 130 formed by the spacing between the crimping side walls 131. During this step, the free ends of the shielding strands 121 are folded over by the crimp sleeve 130, oriented in an opposite direction away from the free end of the conductor 110. To this end, when the crimp sleeve 130 is crimped, it can be moved outward along the cable 100, away from the free end (i.e., behind the free end of the cable 100).
[0067] In another embodiment, the crimping of the shield strands 121 is performed by a stripping device 221 distinct from the crimping sleeve, which can be a separate device or part of the erecting device 220. In this case, this step occurs before the crimping sleeve 130 is applied.
[0068] In step S5, the crimping sleeve 130 is crimped onto the cable 100 by means of the crimping device 240. Here, the crimping side walls 131 converge in the region of the gap 122, so that the joining section 132 is arranged in the region of the cable 100 in which a small number of shielding strands 121 are arranged, for example Figure 1 The completed cable 100 corresponds to the Figure 2 view.
[0069] Figure 10 A schematic diagram of a cable 100 according to one embodiment is shown, which has a bent shielding strand 121. Cable 100 has a conductor 110 surrounded by an insulation 111. The shielding braid 120 has been unwound, and the shielding strands 121 are folded over an outer layer 112. Here, gaps 122 can be seen, resulting from the diverging shape of the shielding strands 121. Viewed from the free end of cable 100, gaps 122 widen in a wedge-shaped manner along the longitudinal axis of cable 100. In another embodiment, outer layer 112 has been removed from conductor 100 over a predetermined length starting from the free end of cable 100, and shielding strands 121 are folded over so that they rest against the unwound shielding braid 120.
[0070] The crimped crimp sleeve 130 is crimped Figure 10 122 is shown in dashed lines, wherein the joining section 132 is arranged in the region of the gap 122. Here, the crimping side wall 131 is shown straight. In another embodiment, the crimping side wall can also be Figure 1 and Figure 2By widening the shielding strand 121 and arranging the joining section 132 in the region of the gap 122 , only a small amount or no shielding strand 121 is clamped into the crimping sleeve 131 during the pressing or crimping of the sleeve 130 .
[0071] Reference Signs List
[0072] 100% shielded cable
[0073] 110 conductor
[0074] 111 insulator
[0075] 112 outer layer
[0076] 120 shield braid
[0077] 121 shielded stranded wire
[0078] 122 gap
[0079] 130 crimping sleeve
[0080] 131 crimped side wall
[0081] 132 joint section
[0082] 200 devices
[0083] 210 Holding Equipment
[0084] 220 erection equipment
[0085] 221 stripping equipment
[0086] 230 splitting equipment
[0087] 240 crimping equipment
[0088] S1-S5 method steps.
Claims
1. A method for manufacturing a shielded cable (100), the method comprising the following steps: Providing a conductor (110) having a shielding braid (120), the shielding braid being arranged around an outer circumferential surface of the conductor (110) and having a plurality of shielding strands (121); opening the shielding braid (120) so that the shielding strands (121) of the shielding braid (120) are no longer braided in the region of the free ends of the shielding strands (121); raising the free end of the shielding strand (121) of the opened shielding braid (120) so that the free end extends away from the conductor (110) in a substantially radial direction; The raised free ends of the shielding braid (120) are dispersed and shaped by means of a splitting device (230) so that gaps (122) are formed in the shielding braid (120), the gaps separating the plurality of shielding strands (121) and / or spacing them apart from each other in groups, A crimping sleeve (130) is applied around the outer circumferential surface of the conductor and around the shielding braid (120) so that the joint section between the two free radial ends (131) of the crimping sleeve (130) is located in the region of the gap (122) of the shielding braid (120), and The applied crimping sleeve (130) is crimped using a crimping tool (240).
2. The method according to claim 1, wherein The plurality of shielding strands (121) are divided into a first subgroup extending on a first arc segment of the outer circumferential surface of the conductor (110) and a second subgroup extending on a second arc segment of the outer circumferential surface of the conductor (110) by the dispersed forming, and the gap (122) between the first subgroup and the second subgroup extends on a third arc segment of the outer circumferential surface of the conductor (110).
3. The method according to claim 1 or 2, further comprising the steps of: The free end of the braided shielding fabric (120) is folded over by utilizing the gap (122) so that the free end of the braided shielding fabric (120) is oriented away from the free end of the conductor (110).
4. A method according to any one of the preceding claims, wherein The free ends of the shielding strands (121) of the shielding braid (120) are erected substantially at right angles to the longitudinal extension direction of the conductor (110).
5. A method according to any one of the preceding claims, wherein The splitting device (230) has a bow shape, and wherein the splitting device (230) is first inserted between the free ends of the shielding strands (121) of the shielding braid (120) with the tip of the bow.
6. A method according to any one of the preceding claims, wherein The crimping sleeve (130) forms the outer conductor of the cable (110) or a portion of the outer conductor in combination with the shielding braid (120).
7. The method according to any one of the preceding claims, further comprising the steps of: After crimping the crimping sleeve, the joint section is optically inspected for the shielding strands (121) protruding between the two free radial ends of the crimping sleeve (130) and / or other processing defects.
8. A device (200) for manufacturing a shielded cable (100), the device comprising: A holding device (210) configured to hold the shielded cable (100) at an outer circumference of the holding device, at least one erecting device (220) configured to erect a shielding braid (120) arranged around an outer circumferential surface of a conductor (110) of the shielded cable (100) and having a plurality of shielding strands (121), such that free ends of the shielding strands (121) of the shielding braid (120) extend away from the conductor (110) in a substantially radial direction; a splitting device (230) configured to disperse the raised free ends of the shielding strands (121) so as to form gaps (122) in the shielding braid (120), the gaps separating a plurality of the shielding strands (121) and / or spacing them apart from one another in groups, and A crimping device (240) is provided for applying a crimping sleeve (130) around the outer circumferential surface of the conductor (110) and around the shielding braid (120) so that a joining section between two free radial ends (131) of the crimping sleeve (130) is located in the region of the gap (122) in the shielding braid (120) and crimping the crimping sleeve (130).
9. The device (200) according to claim 8, wherein The splitting device (230) has a bow shape and is configured to first be embedded into the free end of the shielding braid (120) with the bow tip of the bow.
10. The device according to claim 8 or 9 comprises a stripping device (221), which is configured to fold over the free end of the shielding strand (121) of the shielding braid (120) using the gap (121) so that the free end of the shielding strand (121) of the shielding braid (120) is oriented in the opposite direction away from the free end of the conductor (110).
11. A splitting device (230) for use in a device according to any one of claims 8 to 10, wherein The splitting device (230) has a bow shape and is designed such that it narrows concavely to a point along the bow tip and preferably has a convex transition from the bow tip to the component width of the splitting device.