Tool for producing an arrangement, method for producing the arrangement with the tool, and arrangement

Abstract

The invention relates to a tool (300), a method for producing an arrangement using the tool (300), and an arrangement, the tool (300) having at least one first pressing jaw unit (305) and a guide unit (310), the first pressing jaw unit (305) defining, on its interior, a tool housing (325) extending along a straight line (320) and serving to receive the crimping sleeve (60) and the electrical line (20), the first pressing jaw unit (305) having a first pressing jaw (330) with a first pressing surface (345) arranged on one side facing the tool housing (325), a second pressing jaw (335) with a second pressing surface (350) arranged on one side facing the tool housing (325), and a first adjustment device (340). Figure for the abbreviation: Figure 3

Description

Title of the invention: Tool for producing an arrangement, method for producing the arrangement with the tool, and arrangement

[0001] The invention relates to a tool for producing an arrangement, a method for producing the arrangement with the tool and an arrangement.

[0002] German patent application DE 10 2020 101 236.5 discloses an arrangement comprising a contact device, an electrical cable, and a sheath. The contact device has a crimping sleeve and a contact element, the crimping sleeve connecting a shielding conductor of the electrical cable to the contact element.

[0003] An object of the invention is to provide an improved tool for producing an arrangement, an improved method for producing the arrangement, and an arrangement.

[0004] This objective is achieved by means of a tool having at least one first pressing jaw unit and a guide unit, wherein the first pressing jaw unit defines internally a tool housing extending along a straight line, which serves to receive the crimping sleeve and the electrical line. The first pressing jaw unit has a first pressing jaw with a first pressing surface arranged on one side facing the tool housing, a second pressing jaw with a second pressing surface arranged on one side facing the tool housing, and a first adjustment device. The first pressing surface of the first pressing jaw is arranged offset from the second pressing surface of the second pressing jaw in an axial direction along the straight line.The first adjusting device mechanically connects the first pressing jaw to the second pressing jaw. The second pressing surface can be adjusted by means of the first adjusting device between a first pressing position radially inward and a second pressing position radially outward relative to the first pressing position. A first portion of the first pressing force, which can be supplied by the guide unit, can be transmitted via the first pressing jaw to the first pressing surface. The first adjusting device is configured to transmit a second portion of the first pressing force from the first pressing jaw to the second pressing jaw.The first pressing surface is configured to stamp a first embossing, and the second pressing surface is configured to stamp a second embossing, in the crimp sleeve in order to crimp the crimp sleeve onto the electrical line.

[0005] This embodiment has the advantage that, using the tool, the crimping sleeve can be connected to both the contact element and a sheath of the power line in a single crimping step. In this way, a particularly high production rate can be achieved with the tool. Furthermore, an improved method for producing an arrangement consisting of a power line and a contact device with a crimping sleeve can be provided by virtue of the tool.

[0006] In an additional embodiment, the tool may include a second pressing jaw unit, the second pressing jaw unit being arranged offset relative to the first pressing jaw unit in a circumferential direction relative to the straight line and a third pressing jaw with a third pressing surface facing the tool housing, a fourth pressing jaw with a fourth pressing surface facing the tool housing, and a second adjustment device, the third pressing surface being arranged offset in the axial direction relative to the fourth pressing surface, the second adjustment device connecting the third pressing jaw to the fourth pressing jaw, the fourth pressing surface being adjustable by means of the second adjustment device between a third radially internal pressing position and a fourth pressing position,which is located radially outwards relative to the third pressing position, the third pressing surface being configured to stamp a third embossing, and the fourth pressing surface being configured to stamp a fourth embossing into the crimp sleeve for the purpose of crimping the crimp sleeve onto the power line.

[0007] This embodiment has the advantage that, due to the mobility of the fourth pressing jaw relative to the third pressing jaw, and also in conjunction with the mobility of the second pressing jaw relative to the first pressing jaw, the tool housing can be flexibly adapted to the crimping sleeve and the geometric configuration of the sheath. In particular, the adjustability of the second and fourth pressing surfaces ensures reliable crimping of the crimping sleeve onto the power line sheath. This makes it possible to ensure particularly efficient voltage release from the power line.

[0008] In a further embodiment, the first and third pressing surfaces can extend circumferentially along a first common circular path around the straight line; in particular, the first and third pressing surfaces can intersect orthogonally an initial plane extending orthogonally to the straight line. The second and fourth pressing surfaces can extend circumferentially along a second common circular path. around the straight line, in particular the second pressing surface and the fourth pressing surface can cross orthogonally another plane arranged parallel to the initial plane and offset in an axial direction with respect to the straight line.

[0009] This embodiment makes it possible to ensure a particularly advantageous molding of the crimping sleeve to the contact element and the sheath of the electrical line.

[0010] In a further embodiment, the first pressing jaw may have a pressing portion and a support portion that is connected to and extends axially from the pressing portion. The first pressing surface may be arranged radially on the inside of the pressing portion. The second pressing jaw may be arranged radially on the inside of the support portion. The first adjusting device may be arranged radially between the support portion and the second pressing jaw. The first adjusting device may be configured to transmit the second portion of the first pressing force from the support portion to the second pressing jaw.

[0011] This embodiment has the advantage that the number of components can be kept particularly small. In addition, the second pressing jaw can be arranged particularly close to the first pressing jaw, and thus the first pressing surface can be arranged particularly close to the second pressing surface, in an axial direction.

[0012] In one embodiment, the pressing part and the support part can be in one piece and materially joined.

[0013] The first pressing jaw is then particularly mechanically rigid.

[0014] In a further embodiment, the adjustment device may have at least one spring unit and a guide, the guide being configured to guide the second pressing jaw in a movement between the first pressing position and the second pressing position. The spring unit may be arranged at least partially between the first pressing jaw and the second pressing jaw and may be configured to push the second pressing jaw in a radial direction from the second pressing position inward to the first pressing position.

[0015] Thus, the second pressing jaw is positioned relative to the first pressing jaw by means of the spring unit in a self-adjusting manner.

[0016] In a further embodiment, the guide may have at least one guide element and a guide housing formed complementary to the guide element. The guide element may be arranged radially on the inside of the support portion and be mechanically connected to the support portion. The guide element may extend inward in a radial direction from the portion of support. The guide housing can be arranged in the second pressing jaw. Alternatively, the guide element can be arranged radially on the outside of the pressing jaw and mechanically connected to the second pressing jaw. The guide element can extend outwards in a radial direction from the pressing jaw, with the guide housing arranged in the support portion. The guide element can engage with the guide housing.

[0017] In this way, reliable guidance of the second pressing jaw in the movement between the first pressing position and the second pressing position can be ensured.

[0018] In a further embodiment, the guide may have a sliding guide housing arranged in the second pressing jaw. The guide may further have a stop element connected to the first pressing jaw and having a stop surface. In the first pressing position, the stop surface may rest against one end of the sliding guide housing and may limit the displacement of the second pressing jaw relative to the first pressing jaw.

[0019] An unintentional disengagement or detachment of the second pressing jaw from the first pressing jaw is thus prevented.

[0020] In an additional embodiment, the stop element may have a columnar shape and be oriented parallel to the straight line.

[0021] In this way, the stop element can be manufactured and connected to the first pressing jaw in a particularly simple and inexpensive manner.

[0022] In an additional embodiment, in the first pressing position, the spring unit can be pre-stressed.

[0023] This embodiment has the advantage of ensuring that the second embossing can be reliably stamped into the crimping sleeve by means of the second pressing jaw.

[0024] In a further embodiment, the adjustment device may have an adjustment unit, the adjustment unit being coupled to the support portion. The adjustment unit may have a first threaded bore, which is arranged in the support portion and extends in a radial direction, and a first screw. The first screw may be screwed into the first threaded bore, a preload force of the spring unit in the first pressing position being able to be defined in such a way as to determine the screwing depth of the first screw in the threaded bore.

[0025] In this way, the stamping behavior of the second pressing jaw during the stamping of the second embossing can be specifically adjusted in conjunction with the first embossing in the crimping sleeve.

[0026] In a further embodiment, the first pressing jaw may have, on one side facing the second pressing jaw, a first ramp surface extending obliquely with respect to a straight line. The first adjustment device may have a fastening means, an adjustment unit, and a shim element. The shim element may be arranged radially between the support portion and the second pressing jaw, and the second pressing jaw may rest against the shim element. On one side of the shim element facing the first ramp surface, the shim element may have a second ramp surface extending obliquely with respect to a straight line. The fastening means may hold the second pressing jaw against the support portion and may press the shim element between the support portion and the second pressing jaw.The axial spacing between the wedge element and the pressing part can be adjusted using the adjustment unit.

[0027] Thanks to the adjustment unit, an axial spacing between the wedge element and the pressing part is adjustable in order to adjust the second pressing jaw between the first pressing position and the second pressing position.

[0028] The arrangement produced using the tool has a contact device and an electrical line with a first electrical conductor and a sheath. The contact device has a crimping sleeve extending along an axis, and a contact element that is mechanically and electrically connected to the crimping sleeve. The crimping sleeve is pressed, at least in a first sub-part, against the first electrical conductor. The first inner circumferential side establishes electrical contact. The crimping sleeve has a second sub-part, the second sub-part being arranged offset from the first sub-part with respect to the axis. A second embossing and a fourth embossing, which is arranged offset from the second embossing in a circumferential direction with respect to the axis, are stamped into the crimping sleeve, at least in the second sub-part.In the second sub-part, the crimp sleeve circumferentially encases the sheath of the electrical line, which sheath circumferentially encases and electrically insulates the first electrical conductor. The second inner circumferential side of the crimp sleeve is shaped by the second and fourth embossings so as to be pressed against the sheath and establish a friction bond.

[0029] In a method for producing the arrangement using the tool described above, a contact device and an electrical line having a first electrical conductor and a sheath that encloses the first electrical conductor are provided. The sheath is removed from the first electrical conductor in a stripped portion, and the sheath remains on the first electrical conductor in an adjacent sheathed portion. to the exposed portion. The crimping sleeve is pushed onto the exposed and sheathed portions of the electrical wire, and these are positioned together in the tool holder. The first pressing jaw unit is moved radially inward from a first position to a second position, and a first pressing force is applied to the first pressing jaw unit. With the first portion of this first pressing force, the first pressing jaw, at the first pressing surface, imprints the first embossment in the crimping sleeve, and a first inner circumferential side of the crimping sleeve is pressed against the first electrical conductor.With the second portion of the first pressing force, the second pressing jaw imprints, at the level of the second pressing surface, a second embossing, which is arranged in an offset manner relative to the first embossing in an axial direction, within the crimping sleeve. The second inner circumferential side of the crimping sleeve is pressed against the sheath. Thus, a friction bond is established.

[0030] The invention is explained in more detail below with reference to the figures, in which: Fig. 1 is a side view of an arrangement; Fig. 2 is a cross-sectional view along a cutting plane AA, illustrated in Fig. 1, through the arrangement illustrated in Fig. 1; Fig. 3 is a cross-sectional view along the section plane AA, shown in Fig. 1, through the arrangement shown in Figures 1 and 2 and a tool according to a first embodiment; [Fig.4] is a side view of a first unit of pressing jaws of the tool shown in [Fig.3]; Fig. 5 is a perspective illustration of a crimping sleeve of the arrangement shown in Figures 1 to 3 in an uncrimped state; Fig. 6 is a perspective illustration of a contact element of the arrangement shown in Figures 1 to 3 in an unset state; Fig. 7 is a flowchart of a process for producing the arrangement shown in figures 1 to 3; [Fig.8] is a perspective illustration of the power line after a second stage of the process; Figure 9 is a perspective illustration of the arrangement after a fifth step of the process; The [Fig. 10] is a perspective illustration of the arrangement after a sixth step of the process; Fig. 1 is a detail of a side view of the tool shown in Fig. 3 according to a second embodiment.

[0031] Fig. 1 shows a side view of an arrangement 10.

[0032] The arrangement 10 has a contact device 15 and a power line 20. The power line 20 is configured, for example, as a shielded cable, in particular a shielded high-voltage cable for transmitting electrical power in a motor vehicle, specifically for transmitting charging or driving electrical power in a motor vehicle. The power line 20 has a first electrical conductor 25. The first electrical conductor 25 can be configured as a shield and / or an outer conductor. The first electrical conductor 25 extends along an axis 30. Here, the first electrical conductor 25 is substantially cylindrical in shape and hollow with respect to the axis 30. The first electrical conductor 25 can, for example, have a wire mesh, which is, for example, formed of fine or ultrafine wire. The wire mesh can be woven or have individual wires extending parallel to the axis 30.

[0033] Below, for better understanding, the arrangement 10 will be described on the basis of a cylindrical coordinate system with respect to the axis 30.

[0034] The first electrical conductor 25 is radially enveloped on its outer surface by a sheath 35. The sheath 35 has a first electrically insulating material and electrically insulates the first electrical conductor 25 from the surrounding environment 40. Here, the sheath 35 preferably completely encloses the first electrical conductor 25 circumferentially. In [Fig. 1], for example, the sheath 35 has a substantially cylindrical external shape. Here, the sheath 35 extends in a circumferential direction around the axis 30.

[0035] Radially at the level of the interior with respect to the first electrical conductor 25, the electrical line 20 has, for example, an electrically insulating intermediate layer 45. In the embodiment, the electrically insulating intermediate layer 45 is circumferentially wrapped by the first electrical conductor 25.

[0036] Radially, on the inside with respect to the intermediate layer 45, the power line 20 has, for example, a second power conductor 50. The second power conductor 50 can be formed from a single wire. The second power conductor 50 can also be formed from a bundle of wires, which are, for example, in the form of thin or ultra-thin wires. The second power conductor 50 can also be called the inner conductor. The second power conductor 50 can, for example, be used to transmit a data signal. Here, the power current to be transmitted is less than 1 ampere. As preferably shown in [Fig. 1] by the geometric configuration of the second power conductor 50, the second power conductor 50 can also be configured to transmit Electrical energy, for example, to power an electric motor. The electric motor is, for example, a drive or traction motor of a motor vehicle. Load power can also be transmitted via the arrangement 10 and the second electrical conductor 50. Preferably, for this purpose, the second electrical conductor 50 has a cross-sectional area of ​​at least 2 mm², preferably 5 mm², in particular 10 mm², and preferably at least 25 mm². The second electrical conductor 50 can, for example, be configured such that its cross-sectional area is less than or equal to 200 mm², less than or equal to 100 mm², or less than or equal to 50 mm².

[0037] The second electrical conductor 50 has a second electrically conductive material, preferably copper and / or aluminum and / or gold and / or silver. The first material and / or the second material may be the same or different. The first material may, for example, also contain copper and / or aluminum and / or gold and / or silver.

[0038] The intermediate layer 45 can be configured to extend in a hollow cylindrical shape around the axis 30 and is arranged radially between the first electrical conductor 25 and the second electrical conductor 50. The intermediate layer 45 isolates the second electrical conductor 50 from the first electrical conductor 25. In the embodiment, the first electrical conductor 25 is configured to electromagnetically shield the second electrical conductor 50 from the environment 40. In particular, the aim of the first electrical conductor 25 is to prevent a high electric current, for example 100 amperes, transmitted through the second electrical conductor 50 from generating an electromagnetic field that could interfere with additional electrical devices in the environment 40 of the power line 20.The electromagnetic compatibility of arrangement 10 is thus improved via the first electrical conductor 25.

[0039] The contact device 15 has a crimping sleeve 60 and a contact element 65 which is connected to the crimping sleeve 60. The contact element 65 is, for example, configured to extend in a hollow cylindrical shape around the axis 30 at least in some places. The contact element 65 extends along the axis 30. The contact element 65 is electrically conductive and serves to form an electrical contact with an additional contact device (not visible in [Fig. 1]).

[0040] The crimping sleeve 60 has a third material, the third material being electrically conductive and easily deformable mechanically. It is particularly advantageous that the contact element 65 also has the third material.

[0041] The crimping sleeve 60 has a first sub-part 70, a second sub-part 75 and a transition part 80 which is arranged axially between the first sub-part 70 and the second sub-part 75.

[0042] In an axial direction, the first subpart 70 adjoins a first end side 85 which is arranged on a side turned towards the contact element 65. The first subpart 70 has a first radial extent. On the side that is axially opposite the first end side 85, the first sub-part 70 is directly adjacent to the transition part 80. The transition part 80 is substantially conical in shape around the axis 30 and mechanically and electrically connects the first sub-part 70 to the second sub-part 75. The second sub-part 75 is arranged so as to be axially adjacent to the transition part 80 on a side that is opposite the first end side 85. The second sub-part 75 has a second radial extent, the second radial extent being thinner than the first radial extent of the first sub-part 70.The second sub-part 75 terminates with a second end side 90 which is located axially opposite the first end side 85.

[0043] The first end side 85 and the second end side 90 are configured to extend substantially perpendicularly to the axis 30 and have a substantially annular basic shape in side view. Here, due to the smaller radial extent of the second subpart 75, the second end side 90 has a smaller radial extent than the first end side 85.

[0044] In the state where the contact device 15 has been installed on the electrical cable 20, the crimping sleeve 60 has at least a first embossing 140 in the first subpart 70. Furthermore, in the second subpart 75, the crimping sleeve has a second embossing 190, which extends circumferentially substantially over an angular segment identical to the first embossing 190.

[0045] The crimping sleeve 60 defines, by means of a first inner circumferential side 95 of the first sub-part 70, a first crimping recess 100. Furthermore, by means of a second inner circumferential side 105 of the crimping sleeve 60 in the second sub-part 75, the crimping sleeve 60 defines a second crimping recess 110. The second crimping recess 110 is arranged so as to be axially offset relative to the first crimping recess 100 with respect to the axis 30. In the embodiment, both the first inner circumferential side 95 and the second inner circumferential side 105 are configured without gap.This means that, in the embodiment, over the entire extent along the axis 30, the crimping sleeve 60 has no slide or space extending radially outwards from the inner circumferential side 95, 105 to an outer circumferential side 115, 120 of the respective sub-part 70, 75 of the crimping sleeve 60.

[0046] The electrical line 20 has a sheathed portion 125 and a bare portion 130. In the sheathed portion 125, the electrical line 20 is configured as described above. In the bare portion 130, the sheath 35 has been removed radially from the first electrical conductor 25 on its outer edge, so that radially on its outer edge, the first electrical conductor 25 is not protected by the first sheath 35. The first electrical conductor 25 has a third outer circumferential edge 135, with which contact can be freely established in the bare portion 130.

[0047] Furthermore, the crimping sleeve 60 has a third embossment 145 in the first sub-part 70. The third embossment 145 is arranged so as to be offset in a circumferential direction relative to the first embossment 140. The first embossment 140 and the third embossment 145 have a substantially identical extent in a circumferential direction but also, for example, in the direction of the axis 30. Here, in [Fig. 1], this is the case, for example, where the first embossment 140 and / or the third embossment 145 extend substantially over a large area of ​​the first sub-part 70 in a direction parallel to the axis 30. The first and / or the third embossment 140, 145 are directly axially adjacent, on the side opposite the first end side 85, by the transition portion 80. A first thickened portion 150 is arranged between the first embossing 140 and the third embossing 145 in a circumferential direction.The first thickened portion 150 is configured in the form of a core and protrudes outwards in a radial direction beyond the first embossment 140 and the third embossment 145. The first thickened portion 150 is configured to be considerably narrower in a circumferential direction than the first embossment 140 and / or the third embossment 145.

[0048] As illustrated in [Fig.1], the crimping sleeve 60 preferably has multiple first and third stamped indentations 140, 145, which are stamped in the first outer circumferential side 115 of the first subpart 70. It is particularly advantageous here that the first embossing 140 and / or the third embossing 145 each extend over a first angular segment of about 20° to 60°, preferably from 30° to 45°. The first thickened part 150 is configured to be considerably narrower in a circumferential direction than the first embossing 140 and / or the third embossing 145. The first thickened part 150 can extend in a circumferential direction with respect to the axis 30 over an angular segment of about 0.5° to 2°, in particular from 0.7° to 1.5°.

[0049] In the embodiment, multiple first and third stamped indentations 140, 145, which are configured to be substantially identical to each other, are stamped into the first outer circumferential side 115 of the first sub-part 70. Here, the first and third stamped indentations 140, 145 each have an identical spacing relative to each other in a circumferential direction.

[0050] Furthermore, in the state where the contact device 15 has been installed on the power line 20, the crimp sleeve 60 has at least the second embossing 190 and a fourth embossing 195 in the second sub-part 75. The second and fourth stamped indentations 190, 195 are arranged so as to be offset from each other in a circumferential direction. Here, a second thickened part 200 is arranged between the second embossing 190 and the fourth embossing 195 in a circumferential direction. The second thickened part 200 is configured to be considerably narrower in a circumferential direction than the second and / or fourth embossing 190, 195.

[0051] The second embossing 190 and the fourth embossing 195 have a substantially identical extent in a circumferential direction and preferably in an axial direction of the axis 30. Here, the second embossing 190 and the fourth embossing 195 extend preferably axially all the way between the transition part 80 and the second end side 90.

[0052] The second thickened part 200 arranged between the third embossing 190 and the fourth embossing 195 is configured in the form of a band and protrudes in a radial direction beyond the second embossing 190 and the fourth embossing 195.

[0053] It is preferable that, in the second subpart 75, multiple second and fourth stamped indentations 190, 195 which are arranged to alternate in a circumferential direction are stamped in the second subpart 75 on the second outer circumferential side 120. It is particularly advantageous here that the second embossing 190 and / or the fourth embossing 195 each extend over a second angular segment of about 20° to 60°, preferably from 30° to 45°.

[0054] The second thickened part 200 can extend in a circumferential direction with respect to the axis 30 over a fourth angular segment of approximately 0.5° to 2°, in particular from 0.7° to 1.5°. A spacing between the second and fourth embossing 190, 195 in a circumferential direction is preferably identical.

[0055] It is particularly advantageous that the second embossing 190 and the first embossing 140 each extend over the same angular segment and are arranged so as to overlap in a circumferential direction. Here, angular overlap in a circumferential direction should be understood as meaning that the first embossing 140 and the second embossing 190 extend over the same angular segment even in a three-dimensional arrangement of the angular segment. Thus, if the first embossing 140 is radially outward With respect to the second embossed 190 in a common first plane that is arranged perpendicular to the axis 30, then, if the first embossed 140 and the second embossed 190 were projected onto a second plane in which the axis 30 extends, the first embossed 140 and the second embossed 190 would overlap in a radially inward direction on the second plane. In other words, the first embossed 140 and the second embossed 190 are, in a sense, arranged coaxially with respect to the axis 30.

[0056] Similar to the first embossing 140 and the second embossing 190, the third embossing 145 and the fourth embossing 195 are also arranged so as to overlap each other angularly in a circumferential direction. This arrangement results in the first and second thickened parts 150, 200 extending into a third common plane 205, in which the axis 30 also extends. It is thus possible to obtain a particularly mechanically stable crimping sleeve.

[0057] Fig. 2 is a cross-sectional view along a cutting plane AA, illustrated in Fig. 1, through the arrangement 10 illustrated in Fig. 1.

[0058] The contact element 65 has a connecting portion 155 and a contact portion 160 which is axially adjacent to the connecting portion 155. The contact portion 160 has, on one side facing the connecting portion 155, a third end side 165 which is oriented perpendicular to the axis 30 and which forms a shoulder on the contact element 65. The contact portion 160 can extend outwards in a radial direction beyond the connecting portion 155 and protrude radially beyond the connecting portion 155.

[0059] The connecting part 155 is, for example, cylindrical in shape, hollow around the axis 30. On the inside, the contact element 65 has an opening 170 which extends through the entire contact element 65 along the axis 30. Here, for example, the axis 30 is arranged in a central position relative to the opening 170. The contact part 160 is simply illustrated symbolically in [Fig.2] and serves to establish contact with the other contact device (not illustrated).

[0060] In this embodiment, the connecting portion 155 and the contact portion 160 are mechanically and electrically connected to each other. Preferably, the connecting portion 155 and the contact portion 160 are formed as a single unit and are physically joined. In particular, the contact element 65 can be configured to be rotationally symmetrical about the axis 30.

[0061] Radially on the outside, the connecting portion 155 has a third external circumferential side 175. The third external circumferential side 175 can, for example, be configured to extend cylindrically around the axis 30. The connecting portion 155 can, for example, be configured to be longer in a axial direction parallel to axis 30 than the first sub-part 70 of the crimping sleeve 60.

[0062] The first electrical conductor 25 is arranged radially between the third outer circumferential side 175 of the connecting part 155 and the first inner circumferential side 95 of the first sub-part 70. Radially inwards with respect to the connecting part 155, the stripped portion 130 of the electrical line 20 is guided with the second electrical conductor 50 and the intermediate layer 45 through the opening 170. Here, the stripped portion 130 can extend over the entire length of the connecting part 155 and protrude into the contact part 160.

[0063] The crimping sleeve 60, via its first inner circumferential side 95 in the first sub-part 70, forms an annular space 180 with the third outer circumferential side 175 of the connecting part 155, the first electrical conductor 25 being arranged in the annular space 180. Here, the first electrical conductor 25 is expanded relative to the sheathed part 125 of the line 20. The first inner circumferential side 75 in the first sub-part 70 rests tightly against a fourth outer circumferential side 185 of the first electrical conductor 25, and presses against the fourth outer circumferential side 185. Here, the fourth outer circumferential side 185 generates an initial frictional engagement with the first inner circumferential side 75.

[0064] Radially inwards with respect to the conical transition part 80, the first electrical conductor 25 is also of conical configuration and is dilated with respect to the sheathed part 125.

[0065] By means of the second inner circumferential side 105, the second sub-part 75 comes to rest tightly against a fifth outer circumferential side 210 of the sheath 35 in the sheathed part 125 and presses against the fifth outer circumferential side 210 of the sheath 35. In particular, here, the second inner circumferential side 105 generates a second frictional engagement with the fifth outer circumferential side 210, so that a release of tension between the crimping sleeve 60 and the sheath 35 can be achieved in this way.As a result of the fact that the second inner circumferential side 105 rests tightly against the sheath 35, and due to the second friction engagement and the resulting tension release, a situation in which the first electrical conductor 25 is subjected to a tensile load at the connecting part 155 and the crimping sleeve 60 is prevented. Through the first and second friction engagement, a tensile force can be transmitted along the axis 30 to the contact element 65.

[0066] The [Fig.3] is a cross-sectional view along the cutting plane AA, shown in the [Fig.1], through the arrangement 10 shown in Figures 1 and 2 and a tool 300 according to a first embodiment for producing the arrangement 10.

[0067] Tool 300 is shown schematically and in a very simplified form in [Fig.3]. The tool 300 has at least one first pressing jaw unit 305 and a guide unit 310. The tool 300 may also have at least one second pressing jaw unit 315. The first pressing jaw unit 305 is arranged so as to be offset in a circumferential direction relative to the second pressing jaw unit 315. In particular, it is possible to provide multiple pressing jaw units 305, 315. The guide unit 310 is connected to both the first pressing jaw unit 305 and the second pressing jaw unit 315 and is configured to move and guide the first pressing jaw unit 305 and the second pressing jaw unit 310 between a first position and a second position which is located radially inward relative to the first position.

[0068] The first pressing jaw unit 305 and the second pressing jaw unit 315 define, on their inner surfaces, a tool housing 325 extending along a straight line 320. In [Fig. 3], the straight line 320 and the axis 30 overlap. The crimping sleeve 60, the connecting portion 155 of the contact element 65, and the electrical line 20 are arranged within the tool housing 325.

[0069] The first pressing jaw unit 305 has a first pressing jaw 330 and a second pressing jaw 335 and a first adjusting device 340. The first pressing jaw 330 has a first pressing surface 345 on an inner side facing the tool holder 325. The second pressing jaw 335 has a second pressing surface 350 on the inner side facing the tool holder 325. The second pressing surface 350 is, for example, arranged radially inward relative to the first pressing surface 345. Furthermore, the second pressing surface 350 is arranged axially and offset relative to the first pressing surface 345 with respect to the straight line 320.

[0070] The first adjusting device 340 mechanically connects the first pressing jaw 330 to the second pressing jaw 335. Here, the second pressing jaw 335 is adjustable in a radial direction by means of the first adjusting device 340 so that the second pressing surface 350 is adjustable between a first pressing position radially inward relative to the first pressing surface 345 and a second pressing position radially outward, even if the first pressing jaw 330 is held in the same position. The adjustment of the second pressing surface 350 relative to the first pressing surface 345 can be carried out independently of the actuation of the first pressing unit 305 by the guiding unit 310, and allows an adaptation / alignment of a first radial spacing between the first pressing surface 345 and the second pressing surface 350.

[0071] The second pressing unit 315 is configured similarly to the first pressing unit 305. The second pressing unit 315 has a third pressing jaw 355, a fourth pressing jaw 360, and a second adjusting device 365. The second adjusting device 365 mechanically connects the fourth pressing jaw 360 to the third pressing jaw 355. The third pressing jaw 355 is mechanically connected, radially on its outer side, to the guide unit 310. Radially inward with respect to the third pressing jaw 355, the third pressing jaw 355 has a third pressing surface 370 on an inner side facing the tool holder 325. The fourth pressing jaw 360 is arranged so as to be axially offset with respect to the third pressing surface 370.

[0072] On the radial side facing the tool holder 325, the fourth pressing jaw 360 has a fourth pressing surface 375. The fourth pressing surface 375 is arranged radially inward relative to the third pressing surface 370. In the embodiment, the first pressing surface 345 and the third pressing surface 370 are arranged to follow a first common circular path around the straight line 320. By way of example, the first pressing surface 345 and the third pressing surface 370 intersect orthogonally a fourth plane 380 extending orthogonally with respect to the straight line 320. Similarly, the second pressing surface 350 and the fourth pressing surface 375 are configured to extend along a second common circular path around the straight line 320.As an example, the second pressing surface 350 and the fourth pressing surface 375 intersect a fifth common plane 385 arranged parallel to the initial plane (380) and offset in an axial direction with respect to the straight line (320).

[0073] The second adjusting device 365 is arranged radially between the third pressing jaw 355 and the fourth pressing jaw 360. The second adjusting device 365 mechanically connects the third pressing jaw 355 to the fourth pressing jaw 360. By means of the second adjusting device 365, the fourth pressing surface 375 is adjustable, independently of the guiding device 310, relative to the third pressing surface 370 between a third radially inner pressing position and a fourth radially outer pressing position which differs from the third pressing position.

[0074] Figure 4 is a side view of the first pressing jaw unit 305 of tool 300 shown in [Fig. 3]. In [Fig. 4], the first jaw unit Pressing plate 305 is, in part, illustrated in a torn-off form in order to provide a better illustration.

[0075] In the embodiment, the first pressing jaw unit 305 and the second pressing jaw unit 315 are configured to be identical to each other, so that, below, the first pressing jaw 305 will be discussed as an example for both pressing jaws 305, 315. The explanations that follow also apply, with nomenclature adapted accordingly, to the second pressing jaw unit 315.

[0076] The first pressing jaw 330 has a pressing portion 500 and a support portion 505, the support portion 505 being axially adjacent to the pressing portion 500 in an axial direction. The support portion 505 is configured to be narrower in a radial direction than the pressing portion 500. Furthermore, a first outer side 506 of the first pressing jaw 330 is, for example, configured to be stepless.

[0077] The first pressing surface 345 is arranged radially on the inside of the pressing portion 500. A pressing jaw housing 510 is arranged axially adjacent to it, and radially inside the support portion 505. The pressing jaw housing 510 is delimited axially by the pressing portion 500 and radially outward by the pressing portion 505. The pressing jaw housing 510 is configured to be open in a radially inward direction. The second pressing jaw 335 is arranged, partially, within the pressing jaw housing 510. Here, the second pressing jaw 335 projects radially, along with the second pressing surface 350, beyond the first pressing surface 345 and out of the pressing jaw housing 510.

[0078] The first adjusting device 340 has at least one spring unit 515, an adjusting unit 520, and a guide 525. The spring unit 515 may have a spring element 530, the spring element 530 being configured, for example, as a helical spring. A certain other embodiment of the spring 530 is, of course, also possible. The spring 530 is oriented so as to extend in a radial direction. The spring 530 is supported radially from the inside on the second pressing jaw 335. For this purpose, a spring housing 535, which is configured, for example, as a blind bore, may be provided in the second pressing jaw 335. The spring 530 engages with a first end of the spring 540 in the spring housing 535.

[0079] The adjusting unit 520 is provided radially outwards relative to the second pressing jaw 335. The adjusting unit 520 has, for example, a first threaded bore 545 which is arranged from the inside outwards in a radial direction in the support portion 505. A first screw 550, for example a headless screw, is screwed into the first threaded bore 545. A second outer end (555) of the spring (530) is supported on the first screw (550) at the radially inner side of the first screw (550). The first screw 550 may have, radially on its outer side, a tool profile 560 in which an additional tool can be engaged for the rotation of the first screw 550. By means of the first screw 550 and a corresponding screwing depth of the first screw 550 in the first threaded bore 545, a preload force FS1 of the spring 530 can be adjusted by tightening or loosening the screw 550.

[0080] The guide 525 serves to guide the second pressing jaw 335 in a circumferential direction and in an axial direction during its movement between the first pressing position and the second pressing position. The guide 525 has, for example, at least one guide element 565, for example in a column-like and / or cylindrical configuration, and engages with a guide element housing 570 in the second pressing jaw 335. The guide element 565 can, for example, be pressed into the guide element housing 570. The guide element 565 preferably extends in a radial direction.

[0081] The guide element 565 engages with a radially external portion in a guide housing 575, the guide housing 575 being configured correspondingly to the guide element 565. Here, the guide housing 575 can be selected to form a clearance adjustment system with the guide element 565. The guide housing 575 is, for example, formed as a blind bore, which leads radially from the inside out, in the support portion 505. The guide housing 575 can, for example, be arranged in an axial direction between the first threaded bore 545 and a third end face 580 of the first pressing jaw 330, which is arranged on a side of the support portion 505 that is directed away from the pressing portion 500. It is, of course, also possible, as illustrated in [Fig. 4], to provide for other elements of guide 565, housing elements of guide 570 and housing elements of guide 575.For example, axially between the pressing part 500 and the first threaded bore 545, an additional guide element 565 may also be provided, which is located in an additional guide element housing 570 and engages in an additional guide housing 575.

[0082] As an alternative to the arrangement of the guide 525 shown in [Fig. 4], it would also be possible for the guide element housing 570 to be arranged in the support part 505 and for the guide housing 575 to be arranged in the second pressing jaw 335. The embodiment illustrated in [Fig. 4] has the advantage, however, of being particularly easy to assemble, because in this way, the guide element 565 can be pressed particularly easily into the guide element housing which is arranged in the second pressing jaw 335. In this case, the guide element 565 extends radially from the outside to the inside radially and is mechanically connected to the support part 505.

[0083] The guide 525 further has a slide guide housing 580, the slide guide housing 580 being arranged at one end on that side of the second pressing jaw 335 which is turned towards the pressing part 500. The slide guide housing 580 can be configured as an elongated hole. The guide 525 further has a stop element 585. The stop element 585 can be made in the form of a column and / or in the form of a cylinder, the stop element 585 extending in its main extension direction parallel to the straight line 320. The stop element 585 has a stopping surface 590 on its circumference. The stop element 585 is for example pressed into the pressing part 500. It is particularly advantageous that in the first pressing position, the stop surface 590 rests against one end of the slide guide housing 580 and prevents an undesired release of the preloaded spring 530.In addition, a displacement of the second pressing jaw 335 beyond the second pressing position is limited by the abutment of the stop element 585 against the slide guide housing 580.

[0084] A projecting length e of the second pressing surface 350 in a radial direction relative to the first pressing surface 345 is greater than a maximum displacement stroke f of the second pressing jaw 335 between the first and second pressing positions. In the first pressing position, the movement of the second pressing jaw 335 is blocked by the second pressing jaw 335 coming to rest radially against the outer edge of the support portion 505. It would also be possible to block the outward radial movement of the second pressing jaw 335 beyond the first pressing position by further coming to rest the slide guide housing 580 against the stop element 585.

[0085] Because the second pressing jaw unit 315 is configured identically to the first pressing jaw unit 305, the fourth pressing surface 375 can be adjusted between the third and fourth pressing positions by means of the second adjusting device 365. The guide 525 of the second pressing jaw unit 315 guides the fourth pressing jaw 360 in a circumferential and axial direction during its movement between the third and fourth pressing positions. The spring 530 pre-loads the fourth pressing jaw 360.

[0086] Fig. 5 is a perspective illustration of a crimping sleeve 60 of the arrangement 10 shown in Figures 1 to 3 in the uncrimped state.

[0087] In its uncrimped state, the crimping sleeve 60 is substantially shaped into a hollow cylinder. Here, the crimping sleeve 60 has a substantially constant material thickness in a radial direction with respect to the axis 30. The crimping sleeve can be formed, for example, from a thin-walled material, such as sheet metal.

[0088] Fig. 6 is a perspective illustration of a contact element 65 of the arrangement 10 shown in Figures 1 to 3 in the unset state.

[0089] In the embodiment, by way of example, an inner diameter d of the crimping sleeve 60 was chosen to be greater than a maximum outer diameter d_max of the connecting part 155 of the contact element 65.

[0090] The connecting part 155 is mechanically more rigid than the crimping sleeve 60. This is achieved, for example, by means of an additional wall thickness of the connecting part 155 which is considerably thicker (preferably by a factor of 1.5 to 10) than the wall thickness of the crimping sleeve 60.

[0091] Figure 7 shows a flowchart of a process for producing the arrangement 10 shown in Figures 1 to 3. Figure 8 is a perspective illustration of the power line 15 after a second step of process 410. Figure 9 is a perspective illustration of the arrangement 10 after a fifth step of process 425. Figure 10 is a perspective illustration of the arrangement 10 after a sixth step of process 430.

[0092] In a first process step 405, before carrying out the additional process steps, the first pressing jaw unit 305 and the second pressing jaw unit are calibrated. For this purpose, an opening width of the tool housing 325 between the first pressing surface 345 and the third pressing surface 370 is determined in the second position of the first and second pressing jaw units 305, 315 and, based on a setpoint value for the opening width, the first pressing jaw unit 305 and the second pressing jaw unit 315 are positioned and adjusted in the second position.

[0093] Furthermore, using the first screw 550, a spot adjustment of the preload force FS1 of the spring 530 is made on the basis of a desired crimping force, and the first screw 550 is optionally secured against unwanted rotation using a screw securing means, for example a screw securing paint.

[0094] The pressing jaw units 305, 315 are then moved radially outwards to the first position by means of the guide unit 310. Having arrived in a first radially outward position, the pressing jaw units 305, 315 are held by the guide unit 310, so that the tool housing 325 is opened particularly wide in a radial direction. Furthermore, the pre-stressed spring 530 causes the second pressing jaw 335 to be located in the first pressing position and the fourth pressing jaw 360 to be located in the third pressing position.

[0095] First, in the second step of process 410 (see [Fig. 8]) which follows the first In process step 405, the electrical line 20, arriving for example from a roller, is cut, and, immediately afterwards, at a sectioning point 390, the sheath 35 is removed from the electrical conductor 25 to form the bare part 130 between the sectioning point 390 and the sheathed part 125.

[0096] In a third step of process 415, the crimping sleeve 60 (see [Fig.5]) and the contact element 65 (see [Fig.6]) are supplied in an uncrimped state.

[0097] In the fourth step of process 420, the crimping sleeve 60 is pushed onto the line 20 to such an extent that the crimping sleeve 60 completely envelops the sheathed part 125.

[0098] In a fifth process step 425 (see [Fig. 9]) which follows the fourth process step 420, the first electrical conductor 25 is, for example, expanded. This can be achieved, for example, using a (hollow) mandrel.

[0099] In addition, the intermediate layer 45 and the second electrical conductor 50 are inserted through the opening 170 of the contact element 65 such that the second electrical conductor 50 and the intermediate layer 45 protrude beyond the contact element 65 on one side of the contact element 65 which is oriented opposite to the connecting part 155.

[0100] Here, the contact element 65 is positioned relative to the first electrical conductor 25 such that the connecting part 155 is arranged radially between the intermediate layer 45 and the first electrical conductor 25. The first electrical conductor 25 radially wraps circumferentially around the connecting part 155 and rests against the third outer circumferential side 135 of the connecting part 155.

[0101] In a sixth step of the process 430 (see [Fig. 10]) which follows the fifth step of the process 425, the crimping sleeve 60 is pushed onto the connecting part 155 and the first electrical conductor 25 onto the connecting part 155. Here, the crimping sleeve 60 forms the annular space 180 with the third outer circumferential side 135. The first expanded electrical conductor 25 is arranged in the annular space 180.

[0102] After the sixth process step 430, the arrangement 10 is placed in the tool holder 325 in a seventh process step 435 (see [Fig. 3]). Here, the arrangement 10 is positioned such that the pressing surfaces 345, 350, 370, 375 are positioned to radially overlap the crimping sleeve 60. Here, radial overlap should be understood as meaning that, in a projection in a radial direction in a plane in which the axis 30 and the straight line extend 320, the two components, for example the pressing surfaces 345, 350, 370, 375 and the crimping sleeve 60, overlap. Similarly, the first pressing surface 345 and the third pressing surface 370 radially overlap the connecting portion 155 and the first expanded electrical conductor 25 in the exposed portion 130.

[0103] In the embodiment, the crimping sleeve 60 and the first and / or second pressing jaw unit 305, 315 have substantially the same axial extent along the axis 30 or the straight line 320. Here, the arrangement 10 is positioned in the tool housing 325 such that the crimping sleeve 60 preferably completely radially overlaps the first and second pressing jaw units 305, 315.

[0104] In an eighth process step 440 following the seventh process step 435, the guide unit 310 moves the first pressing jaw unit 305 and the second pressing jaw unit 315 from the first position radially outwards to a second position (see [Fig. 3]). Each of the pressing jaws 330, 335, 355, 360 rests with the corresponding pressing surface 345, 350, 370, 375 respectively against the outer circumferential side 115, 120 of the crimping sleeve 60.

[0105] When the pressing jaw units 305, 315 are moved inwards from the first radially outward position to the second radially inward position, it first occurs that the second and fourth pressing surfaces 350, 375 come into contact with the second outer circumferential side 120 of the second sub-part 75 of the crimping sleeve 60.

[0106] The guide unit 310 provides a first pressing force Fl at the level of the first pressing jaw unit 305 and a second pressing force F2 at the level of the second pressing jaw unit 315. The first pressing force Fl and the second pressing force F2 are each directed radially from the outside to the inside and are preferably of substantially the same magnitude.

[0107] During crimping and movement from the first radially outward position to the second radially inward position, and as long as the first pressing jaw 330 and the third pressing jaw 355 are, at the level of the first pressing surface 345 and the third pressing surface 370, spaced from the first outer circumferential side of the crimping sleeve 60, the first pressing force Fl is transmitted exclusively from the first pressing jaw 330 via the first adjusting device 340 to the second pressing jaw 335 and from the second pressing jaw 335 to the second pressing surface 350. Similarly, as long as the third pressing surface 370 remains positioned at a distance from the first outer circumferential side, the second pressing force F2, which is introduced into the second pressing jaw unit 315 via the guide unit 310, is transmitted from the third pressing jaw 355 via the second adjusting device 365 to the fourth pressing jaw 260.

[0108] The crimping sleeve 60 provides a respective opposing force FG1, FG2 which is directed opposite to the first pressing force Fl and the second pressing force F2. With increasing pressing forces Fl, F2, the spring 530 of the pressing jaw unit 305, 315 can be compressed in each case, and reliable abutment of the second and fourth pressing surfaces 350, 375 against the second sub-part 115 of the crimping sleeve 60 is ensured. Here, the second pressing jaw 335 is moved radially outwards from the first pressing position to the second pressing position, and the fourth pressing jaw 360 is moved from the third pressing position to the fourth pressing position.

[0109] Due to the flexible shape of the crimping sleeve 60, the first pressing force Fl is introduced exclusively from the first pressing jaw unit 305, via the second pressing surface 350, into the second outer circumferential side 120 of the crimping sleeve 60.

[0110] Thanks to the first pressing force Fl, which within the first pressing jaw unit 305 is transmitted from the first pressing jaw 330 via the first adjusting device 340 to the second pressing jaw 335, the second pressing jaw 335 forms the second embossing 190 in the circumference of the crimping sleeve 60 in the second sub-part 75. Offset from the second embossing 190 in a circumferential direction, the fourth embossing 195 is stamped into the second sub-part 75 in a circumferential direction by the fourth pressing surface 375 by means of the second pressing force F2. Here, the second thickened part 200 is formed between the second embossing 190 and the fourth embossing 195.

[0111] The first and second pressing forces Fl, F2 continue to be supplied, and the guide unit 310 guides the first pressing jaw unit 305 and the second pressing jaw unit 315 radially further from the first position in the direction of the second position. In the process, the pressing force Fl, F2 increases in magnitude. The spring 530 is also compressed. Shortly before the second position is reached, the first pressing surface 345 of the first pressing jaw 330 also comes into contact with the first outer circumferential side 115 of the contact element 65. Similarly, the third pressing surface 370 comes into contact with the first outer circumferential side 115 of the crimping sleeve 60 in the first sub-part 70.

[0112] Here, the first pressing jaw 330 transmits a first portion of the first pressing force Fl directly to the first pressing surface 345, and the The first pressing surface 345 stamps the first embossing 140 into the first sub-part 70. Here, due to the first portion of the first pressing force Fl, the first inner circumferential side 115 in the first sub-part 70 comes to rest tightly against the third outer circumferential side 135 of the first electrical conductor 25. In addition, a second portion of the first pressing force Fl is transmitted via the first adjusting device 340 to the second pressing jaw 335, which further stamps the second embossing 145 into the second outer circumferential side 120 of the crimping sleeve 60. Here, the second pressing jaw 335 can be pushed radially outwards into the second pressing position.

[0113] During the pressing and crimping of the crimping sleeve 60, the second inner circumferential side 105 comes to rest tightly against the fifth outer circumferential side 210 of the sleeve 35 and generates the second friction engagement. Here, the second pressing jaw 335 can abut against the support portion 505, or the second portion of the first pressing force Fl can be transmitted substantially exclusively via the spring 530.

[0114] In the embodiment, thanks to the adjustment of the preload force FS1 of the spring 530, it is possible, even without the second pressing jaw 335 coming to a stop, to transmit the second portion of the first pressing force Fl via the support part 505 and the spring 530 to the second pressing jaw 335 which, being mounted so as to be movable in bending in a radial direction, can rest particularly effectively against the crimping sleeve 60 in the second sub-part 75. For this purpose, the spring 530 must be chosen in a manner depending on the pressing force Fl, F2 and is preloaded accordingly with the preload force FS1.

[0115] In an alternative embodiment, the second pressing jaw 335 comes to a radial stop at the outside against the support part 505, so that a second particularly high portion of the first pressing force Fl can be transmitted from the first pressing jaw 330, via the support part 505, to the second pressing jaw 335.

[0116] The introduction of a force for stamping the third and fourth stamped indentations 145, 195 by the second pressing jaw unit 315 also occurs in a similar manner. Here, a first portion of the second pressing force F2 is transmitted directly from the third pressing jaw 355 to the third pressing surface 370 when the third pressing surface 370 comes into contact with the first sub-part 70 of the crimping sleeve 60 as the second pressing jaw unit 315 is moved into the second position. Here, with the first portion of the second pressing force F2, the third surface The pressing jaw 370 forms the third embossing 145 in the crimping sleeve, such that at the third embossing 145, the first inner circumferential side 95 of the crimping sleeve 60 rests tightly against the first electrical conductor 25 and generates the first frictional engagement between the first inner circumferential side 95 and the electrical conductor 25, on the one hand, and also between the first electrical conductor 25 and the connecting portion 155. Furthermore, the third pressing jaw 355 transmits a second portion of the second pressing force F2 to the second adjusting device 365. The second adjusting device 365 transmits the second portion of the second pressing force F2 to the fourth pressing jaw 360, which further embosses the fourth embossing 195 in the second outer circumferential side 120 of the crimping sleeve 60.

[0117] During the stamping of the stamped indentations 140, 190, 145, 195, a portion of the material from the crimping sleeve 60 flows into a respective space between the first pressing jaw unit 305 and the second pressing jaw unit 315, and forms respectively the first and second thickened parts 150, 200. The crimping sleeve 60 thus has different material thicknesses in a circumferential direction, such that the material thicknesses radially inside the first to fourth stamped indentations 140, 190, 145, 195 are less than those at the level of the first and second thickened parts 150, 200.

[0118] In a ninth process step 445 which follows the eighth process step 440, the pressing jaw unit 305, 315 is, after completion of the crimping in the eighth process step 440, moved radially outwards by the guide unit 310 from the second position to the first position again, so that the tool housing 325 is again opened and the crimped contact device 15 with the electrical line 20 can be removed from the tool housing 325.

[0119] Stamping the stamped indentations 140, 190, 145, 195 and forming the thickened portions 150, 200 has the advantage of stiffening the crimping sleeve 60, thereby preventing undesirable expansion of the crimping sleeve 60 once the pressing jaw units 305, 315 are removed. A particularly effective first crimped connection between the first electrical conductor 25 and the crimping sleeve 60, and a particularly effective second crimped connection between the sheath 35 and the same crimping sleeve 60 are thus provided.

[0120] In addition, at the same time, a tension release is generated due to the connection of the crimping sleeve 60 to the sheath 35, and also due to the crimping of the crimping sleeve 60 with the first electrical conductor 25 and with the connecting part 155 in a single crimping / pressing step in the tool 300.

[0121] Due to the stamping of the stamped indentations 140, 190, 145, 195 and the associated reduction of the inner diameter of the crimping sleeve 60 at the connecting portion 155 and at the sheath 35, it is true that, even after the tool 300 has been removed, the crimping sleeve 60 at least partially maintains the first and second pressing forces F1, F2 and presses the first electrical conductor 25 radially at the inner level against the connecting portion 155, such that the first frictional engagement between the first electrical conductor 25 and the connecting portion 155 and the first inner circumferential side 95 of the first sub-portion 70 of the crimping sleeve 60, and the second frictional engagement between the second inner circumferential side 105 of the second sub-portion 75 of the sleeve 60 mm crimp and the fifth outer circumferential side 210 mm of the sheath 35 mm,are maintained.

[0122] Because the first inner circumferential side 95 rests tightly against the first electrical conductor 25 and the second inner circumferential side 105 rests tightly against the fifth outer circumferential side 210 of the sheath 35, a situation in which parts of the crimping sleeve 60 enter the first electrical conductor 25 and the sheath 35 during the stamping and crimping of the stamped indentations 140, 190, 145, 195 is avoided. On the contrary, after the stamping of the indentations 140, 190, 145, 195, the crimping sleeve 60 has a substantially cylindrical shape at each of the first inner circumferential side 95 and the second inner circumferential side 105, but with respectively different reduced internal diameters.This embodiment has the advantage of avoiding damage to the first electrical conductor 25 and the sheath 35 due to the stamping of the crimping sleeve 60.

[0123] [Fig. 11] is a detail of a side view of tool 300 shown in [Fig. 3] according to a second embodiment.

[0124] Tool 300 is substantially identical to tool 300 according to the first embodiment as shown in Figures 3 and 4. Only the differences of tool 300 according to the second embodiment shown in [Fig. 1 1] compared to tool 300 according to the first embodiment shown in Figures 3 and 4 will be discussed below.

[0125] It is stated again that only the first pressing jaw unit 305 will be discussed below. By way of example, the second pressing jaw unit 315 is configured to be identical to the first pressing jaw unit 305, so the explanations given below concerning the first pressing jaw unit 305 also apply to the second pressing jaw unit 315, except that the second pressing force F2 rather than the first pressing force Fl is introduced into the second pressing jaw unit 315.

[0126] In [Fig. 11], the spring unit 515 is omitted. Instead of the spring unit 515, the first pressing jaw unit 305 has a fastening means 595 and a wedge element 605. The fastening means 595 may, for example, have a second screw 610.

[0127] The second screw 610 is inserted into a screw opening 615, the screw opening 615 being arranged in the support portion 505 so as to extend in a radial direction. On the support portion 505, the first pressing jaw 330 has a first ramp surface 620, the first ramp surface 620 being arranged so as to be inclined obliquely with respect to the straight line 320. Here, the first ramp surface 620 can be arranged such that the radial spacing between the straight line 320 and the first ramp surface 620 increases with the increasing axial spacing between the first ramp surface 620 and the pressing portion 500. The first ramp surface 620 can also be flat and extend in a plane. The first ramp surface 620 can also be configured as a partial cone relative to the straight line 320.

[0128] In this embodiment, the guide element housing 570, the guide element 565, and the guide housing 575 are omitted. Alternatively, the guide 525 has a guide portion 625 extending inward in a radial direction, the guide portion 625 being oriented so as to extend in a sixth plane perpendicular to the straight line 320. Here, the guide portion 625 is radially connected on its outer surface to the support portion 505. In particular, the pressing portion 500, the support portion 505, and the guide portion 625 can be made as a single unit and physically joined.

[0129] On a first axial side facing the pressing part 500, the guide part 625 has a first guide surface 630, which is flat. On an axial side facing the guide part 625, the pressing part 500 has a second guide surface 635 which, for example, is arranged parallel to the first guide surface 630. The first and second guide surfaces 630, 635 are, for example, oriented so as to extend perpendicularly with respect to the straight line 320. The first guide surface (630) and the second guide surface (635), together with the first ramp surface (620), define the pressing jaw housing (510), both the second pressing jaw (335) and the wedge element (605) being arranged in the pressing jaw housing (510). Here, the wedge element 605 is arranged in a radial direction between the second pressing jaw 335 and the first ramp surface 620.

[0130] Radially at the outer level, the wedge element 605 has a second ramp surface 645, the second ramp surface 645 being oriented parallel to the first ramp surface 620. In the assembled state, the second ramp surface 645 rests radially on the inside against the first ramp surface 620. In an axial direction, the wedge element 605 is arranged between the first guide surface 630 and the second guide surface 635, an axial extent of the wedge element 605 being less than a maximum axial width of the pressing jaw housing 510 between the first guide surface 630 and the second guide surface 635.

[0131] Radially on the inside and opposite the second ramp surface 645 in a radial direction, the wedge element 605 has a first contact surface 650. The first contact surface 650 is configured to extend parallel to the straight line 320. Opposite the first contact surface 650 in a radial direction, the second pressing jaw 335 has a second contact surface 655, the second contact surface 655 being configured correspondingly with respect to the first contact surface 650. The first contact surface 650 and the second contact surface 655 can be configured to extend in a circumferential direction along a circular path around the straight line 320.

[0132] The wedge element 605 has a first passage opening 660 in a radial direction, the first passage opening 660 being, for example, configured to be open on one side turned towards the second guide surface 635. The first passage opening 660 extends radially inwards in a radial direction from the second ramp surface 645 towards the first contact surface 650. The first passage opening 660 can be configured in the form of a groove.

[0133] The adjusting unit 520 is configured differently from that shown in [Fig. 4]. Unlike the latter, the first threaded bore 545 of the adjusting unit 20 is arranged in the shim element 605 and preferably extends parallel to the straight line 320. Here, the first threaded bore 545 is arranged on one side of the shim element 605 that is turned towards the first guide surface 630, and therefore on one side of the shim element 605 that is oriented opposite to the pressing portion 500. The first threaded bore 545 can be configured as a blind bore. The first threaded bore 545 can also open into the first passage opening 660. Alternatively, the first passage bore 660 and the first threaded bore 545 can be arranged offset from each other in a circumferential direction.

[0134] Furthermore, in addition to the first screw 550, which in the embodiment is configured, for example, as a socket head cap screw with a shank, the adjustment unit 520 has a second passage opening 670, the second passage opening 670 being arranged in the guide portion 625 and extending through the guide portion 625 substantially in an axial direction parallel to the straight line 320. The first screw 550 is inserted through the second passage opening 670 and is screwed into the first threaded bore 545. An axial position of the wedge element 605 relative to the pressing part 500 is set according to the degree of screwing of the first screw 550 into the first threaded bore 545.

[0135] Furthermore, on a side oriented opposite to the pressing portion 500, a retaining device 675 can be arranged on the support portion 505, the retaining device 675 preferably being attached in a detachable, reversible, and non-destructive manner to the support portion 505 at the guide portion 625, for example, by screw connection. The retaining device 675 protrudes radially beyond a screw head 676 of the first screw 550 and prevents the screw head 676 from being pulled away from the guide portion 625 in an axial direction or pushed away by axial deformation of the wedge element 605.

[0136] Furthermore, a third opening 680 can be arranged in the retaining device 675 for inserting an assembly tool into the screw head 676 in order to rotate the first screw 550 by the screw head 676. The third opening 680 is thus arranged to overlap the first screw 550 in an axial direction. In this way, the shim element 605 can be moved in an axial direction by means of the screw 550.

[0137] The axial displacement play of the screw head 676 of the first screw 550, for example in an axial direction between the retaining device 675 and the guide part 625, is chosen so that, on the one hand, the blocking of the screw head 676 of the first screws 550 is prevented, but at the same time an axial displacement play of the first screw 550 between the retaining device 675 and the guide part 625 is minimized.

[0138] The second pressing jaw 335 has a second threaded bore 665, the second threaded bore 665 extending radially from the outside in the direction of the second pressing surface 350 but terminating at a distance from the second pressing surface 350. The second screw 610 is inserted through the screw opening 615 and is screwed into the second threaded bore 665. Here, the screw 610 engages through the first passage opening 660.

[0139] The positioning of the second pressing surface 350 and the fourth pressing surface 375 will be discussed below.

[0140] The screw 610 provides a clamping force FS2 which acts in a radial direction and presses the second pressing jaw 335 with the second contact surface 655 against the first contact surface 650 of the clamping element 605. In addition, the clamping force FS2 presses the second ramp surface 645 against the first ramp surface 620.

[0141] To move the second pressing surface 350 in a radial direction between the first pressing position and the second pressing position, and the fourth pressing surface 375 between the third pressing position and the fourth position During pressing, the wedge element 605 can be moved axially between the first guide surface 630 and the second guide surface 635 by means of the first screw 550. For this purpose, the second screw 610 is loosened.

[0142] After an axial position of the wedge element 605 between the first guide surface 630 and the second guide surface 635 has been set by means of the first screws 550, the second screw 610 is tightened, so that the first ramp surface 620 and the second ramp surface 645 and the first and second contact surfaces 650, 655 rest against each other. Here, by means of an axial stop of the second pressing jaw 335 and the fourth pressing jaw 360 against the guide surfaces 630, 635, the first guide surface 630 and the second guide surface 635 guide the second pressing jaw 335 between the first pressing position and the second pressing position and guide the fourth pressing jaw 360 between the third pressing position and the fourth pressing position.

[0143] When the second screw 610 is tightened and the clamping force FS2 is supplied, the retaining device 675 ensures that the obliquely extending ramp surfaces 645, 620 and the clamping force FS2 do not cause the wedge element 605 to be pushed in the direction of the retaining device 675, an axial position of the wedge element 605 between the first guide surface 630 and the second guide surface 635 being defined rather by the butting of the screw head 676 of the first screw 550 against the retaining device 675.

[0144] The embodiment illustrated in [Fig. 11] has the advantage that the radial position of the second pressing surface 350 relative to the first pressing surface 345 can be precisely adjusted by means of the adjusting device 340, 365. Similarly, in the case of the additional pressing jaw unit(s) 305 and the second pressing jaw unit 315, the second pressing jaw 335 and the fourth pressing jaw 360 can each be adjusted relative to the first pressing surface 345 and the third pressing surface 370, respectively, by means of the adjusting device 340, 365 shown in [Fig. 11]. Reliable crimping of the sleeve 35 by the second sub-part 75 of the crimping sleeve 60 during the production of the arrangement 10 is thus ensured.

[0145] The process for producing the arrangement 10 using the tool 300 shown in [Fig. 11] is substantially identical to the process described in [Fig. 7]. However, no adjustment of the second and fourth pressing jaws 335, 360 takes place during the seventh process step 435, but the respective pressing positions of the second and fourth pressing jaws 335, 360, and therefore the pressing positions of the second pressing surface 350 and the fourth pressing surface 375, are calibrated in advance during the first process step 405 in conjunction with the adjustment of the first pressing jaw 330 and the third pressing jaw 355.

Claims

1. Demands Tool (300) for producing an arrangement (10) consisting of an electrical line (20) and a contact device (15) with a crimping sleeve (60), - in which the tool (300) has at least one first pressing jaw unit (305), a second pressing jaw unit (315) and a guide unit (310), - in which the first pressing jaw unit (305) and the second pressing jaw unit (315) define, at the internal level, a tool housing (325) which extends along a straight line (320) and which serves to receive the crimping sleeve (60) and the electrical line (20), - in which the first pressing jaw unit (305) is arranged offset relative to the second pressing jaw unit (315) in a circumferential direction relative to the straight line (320), - wherein the guide unit (310) is connected to both the first pressing jaw unit (305) and the second pressing jaw unit (315) and is configured to move and guide the first pressing jaw unit (305) and the second pressing jaw unit (310) between a first position and a second position which is located radially inward with respect to the first position, and - wherein the first pressing jaw unit (305) has a first pressing jaw (330) with a first pressing surface (345) arranged on one side facing the tool housing (325), a second pressing jaw (335) with a second pressing surface (350) arranged on one side facing the tool housing (325), and a first adjusting device (340), - wherein the first pressing surface (345) of the first pressing jaw (330) is arranged offset relative to the second pressing surface (350) of the second pressing jaw (335) in an axial direction of the straight line (320), - wherein the first adjusting device (340) mechanically connects the first pressing jaw (330) to the second pressing jaw (335),

2. - wherein the second pressing surface (350) is adjustable by means of the first adjusting device (340) between a first radially inward pressing position and a second pressing position which is located radially outwards relative to the first pressing position, - wherein a first portion of a first pressing force (Fl) which can be supplied by the guiding unit (310) can be transmitted via the first pressing jaw (330) into the first pressing surface (345), and the first adjusting device (340) is configured to transmit a second portion of the first pressing force (Fl) from the first pressing jaw (330) to the second pressing jaw (335), - in which the first pressing surface (345) is configured to stamp a first embossing (140), and the second pressing surface (350) is configured to stamp a second embossing (145), in the crimping sleeve (60) for the purpose of crimping the crimping sleeve (60) onto the electrical line (20). Tool (300) according to claim 1, - in which the second pressing jaw unit (315) has a third pressing jaw (355) with a third pressing surface (370) oriented towards the tool housing (325), a fourth pressing jaw (360) with a fourth pressing surface (375) oriented towards the tool housing (325), and a second adjusting device (365), - in which the third pressing surface (370) is arranged offset in the axial direction relative to the fourth pressing surface (375), - in which the second adjusting device (365) mechanically connects the third pressing jaw (355) to the fourth pressing jaw (360), - wherein the fourth pressing surface (375) is adjustable by means of the second adjusting device (365) between a third pressing position radially inward and a fourth pressing position, which is located radially outward with respect to the third pressing position, - wherein the third pressing surface (370) is configured to stamp a third embossing (190), and the fourth pressing surface (375) is configured to stamp a fourth embossing (195), in the crimping sleeve (60) for the purpose of crimping the crimping sleeve (60) onto the electrical line (20).

3. Tool (300) according to claim 2, - wherein the first pressing surface (345) and the third pressing surface (370) extend in a circumferential direction along a first common circular path around the straight line (320), in particular wherein the first pressing surface (345) and the third pressing surface (370) intersect orthogonally an initial plane (380) extending orthogonally to the straight line (320), - wherein the second pressing surface (350) and the fourth pressing surface (375) extend in a circumferential direction along a second common circular path around the straight line (320), in particular wherein the second pressing surface (350) and the fourth pressing surface (375) intersect orthogonally another plane (385) arranged parallel to the initial plane (380) and offset in an axial direction relative to the straight line (320).

4. Tool (300) according to any one of the preceding claims, - wherein the first pressing jaw (330) has a pressing portion (500) and a support portion (505) which is connected to and extends in an axial direction from the pressing portion (500), - wherein the first pressing surface (345) is arranged radially on the inside of the pressing portion, - wherein the second pressing jaw (335) is arranged radially on the inside with respect to the support portion (505), - wherein the first adjusting device (340) is arranged radially between the support portion (505) and the second pressing jaw (335) and is configured to transmit the second portion of the first pressing force Fl from the support portion (505) to the second pressing jaw (335).

5. Tool (300) according to claim 4, - wherein the pressing part (500) and the support part (505) are in one piece and materially joined.

6. Tool (300) according to any one of the preceding claims, - wherein the first adjusting device (340) has at least one spring unit (515) and a guide (525), - wherein the guide (525) is configured to guide the second pressing jaw (335) in a movement between the first pressing position and the second pressing position, - wherein the spring unit (515) is arranged at least partially between the first pressing jaw (330) and the second pressing jaw (335) and is configured to push the second pressing jaw (335) in a radial direction from the second pressing position radially inwards into the first pressing position.

7. Tool (300) according to claim 6, - wherein the guide (525) has at least one guide element (565) and a guide housing (575) formed complementary to the guide element (565), - wherein the guide element (565) is arranged radially on the inside of the support part (505) and is mechanically connected to the support part (505), - wherein the guide element (565) extends inwards in a radial direction from the support part (505), - in which the guide housing (575) is arranged in the second pressing jaw (335), Or - wherein the guide element (505) is arranged radially on the outside of the second pressing jaw (335) and is mechanically connected to the second pressing jaw (335), - wherein the guide element (575) extends outwards in a radial direction from the second pressing jaw (335), - in which the guide housing (575) is arranged in the support part (505), - in which the guide element (565) engages in the guide housing (575).

8. Tool (300) according to claim 6 or 7, - wherein the guide (525) has a sliding guide housing (580) arranged in the second pressing jaw (335), - in which the guide (525) has a stop element (585) which is connected to the first pressing jaw (330) and which has a stop surface (540), - in which, in the first pressing position, the stop surface (590) rests against one end of the slide guide housing (508) and limits a displacement of the second pressing jaw (335) relative to the first pressing jaw (330).

9. Tool (300) according to claim 8, - wherein the stop element (585) has a columnar shape and is oriented parallel to the straight line (320).

10. Tool (300) according to any one of claims 6 to 9, - wherein, in the first pressing position, the spring unit (515) is pre-stressed.

11. Tool (300) according to any one of claims 4 to 10, - wherein the first adjusting device (340) has an adjusting unit (520), - wherein the adjusting unit (520) is coupled to the support part (505), - wherein the adjusting unit (520) has a first threaded bore (545), which is arranged in the support part (505) and extends in a radial direction, and a first screw (550), - wherein the first screw (550) is screwed into the first threaded bore (545), - wherein a preload force (FS1) of the spring unit (515) in the first pressing position can be defined as a function of a screwing depth of the first screw (550) in the first threaded bore (545).

12. Tool (300) according to any one of claims 4 to 11, - wherein the first pressing jaw (330) has, on a side facing the second pressing jaw (335), a first ramp surface (620) extending obliquely inclined with respect to the straight line (320), - wherein the first adjusting device (340) has a fastening means (595), an adjusting unit (520), and a shim element (605), - wherein the shim element (605) is arranged radially between the support portion (505) and the second pressing jaw (335), - wherein the second pressing jaw (335) rests against the shim element (605), - on a side of the shim element (605) facing the first ramp surface (620), the shim element (605) has a second ramp surface (645) which extends obliquely inclined with respect to the straight line (320), - in which the fastening means (595) holds the second pressing jaw (335) against the support part (505) and presses the wedge element (605) between the support part (505) and the second pressing jaw (335), - in which an axial spacing between the wedge element (605) and the pressing part (505) can be adjusted by means of the adjustment unit (600).

13. An arrangement (1) produced using a tool (300) according to any one of claims 1 to 12, comprising a contact device (15) and an electrical line (20) with a first electrical conductor (25) and a sheath (35), wherein the contact device (15) has a crimping sleeve (60) and a contact element (65) that is mechanically and electrically connected to the crimping sleeve (60), wherein the crimping sleeve (60) extends along an axis (30), wherein, at least in a first sub-portion (70) of the crimping sleeve (60), a first inner circumferential side (95) is pressed against the first electrical conductor (25) and the first inner circumferential side (95) establishes electrical contact with the first electrical conductor (25), characterized in that the crimping sleeve (60) has a second sub-part (75),- wherein the second sub-part (75) is arranged offset relative to the first sub-part (70) relative to the axis (30), - wherein at least in the second sub-part (75) of the crimping sleeve (60) are stamped a second embossing (145) and a fourth embossing (195) arranged offset relative to the second embossing (145) in a circumferential direction relative to the axis (30), - wherein, in the second sub-part (75), the crimping sleeve (60) circumferentially encloses the sheath (35) of the electrical line (20), which sheath (35) circumferentially encloses and electrically insulates the first electrical conductor (25),

14. - wherein the second inner circumferential side (105) of the crimping sleeve (60) is shaped by the second embossing (145) and the fourth embossing (195) so as to be pressed against the sheath (35) and to establish a friction bond. Method for producing an arrangement using a tool (300) according to any one of claims 1 to 12, - in which a contact device (15) and an electrical line (20) are provided, having a first electrical conductor (25) and a sheath (35) which encloses the first electrical conductor (25), - in which the sheath (35) is removed from the first electrical conductor (25) in a stripped portion (130), and the sheath (35) remains on the first electrical conductor (25) in a sheathed portion (125) which is adjacent to the stripped portion (130), - in which the crimping sleeve (60) is pushed onto the stripped portion (130) and the sheathed portion (125) of the electrical line (20), and these are jointly positioned in the tool housing (325), - wherein the first pressing jaw unit (305) and the second pressing jaw unit (315) are moved from a first position radially inwards to a second position, and a first pressing force (F1) is introduced into the first pressing jaw unit (305) and a second pressing force (F2) is introduced into the second pressing jaw unit (315), - in which, with the first portion of the first pressing force (Fl), the first pressing jaw (330) stamps, at the level of the first pressing surface (345), the first embossing (140) in the crimping sleeve (60), and a first inner circumferential side (95) of the crimping sleeve (60) is pressed against the first electrical conductor (25), - in which, with the second portion of the first pressing force (Fl), the second pressing jaw (335) stamps, at the level of the second pressing surface (350), a second embossing (145) arranged in a staggered manner with respect to the first embossing (140) in an axial direction, in the crimping sleeve (60), and the second inner circumferential side (105) of the crimping sleeve (60) is pressed against the sheath (35).

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