DE102008014023A1 - Electrical or light conductors coating layer removing device for use in stripping device, has guide elements displaced around preset angle with respect to each other and mounted against each other such that motion of elements is permitted - Google Patents

Abstract

The device has an axially adjustable centering unit for centering an electrical conductor in a machining position, and an axially adjustable tool i.e. cutter (101), for machining a layer of a coating of the conductor. A guide element (106) is provided for guidance of the tool, and another guide element (109) is provided for guidance of an axially adjustable centering unit e.g. centering jaws (108). The elements are displaced radially around 90 degree with respect to each other and mounted against each other such that a relative motion of the elements is permitted in an axial direction.

Description

Field of the invention

The The present invention relates to a device for removal at least one layer of the sheath of electrical conductors or optical fibers with at least one axially displaceable centering unit for centering of the conductor in a machining position and with at least one axial sliding tool for machining at least one layer of the Sheath of the conductor.

Background and state of the technology

Devices of the type mentioned are z. B. used for stripping cable ends, in particular electrical or fiber optic cable with coaxial design. A generic device is used for example in the EP 0 195 932 B1 described. It essentially comprises jaws for holding the cable to be stripped, blades for cutting sheathing layers and centering jaws for centering the cable in the machining position. The knives and the centering jaws are guided over inclined surfaces, which are arranged substantially parallel to one another and preferably coaxially. The pivot points of the levers which couple the knives or the centering jaws with the inclined surfaces are arranged directly next to one another, preferably coaxially. The inclined surfaces can z. Example, be designed as a hollow truncated cone for guiding the knife and a double wedge to guide the centering jaws, wherein the double wedge is arranged inserted into the truncated cone and the truncated cone there has openings where the double wedge is inserted, so that the juxtaposed lever both with their assigned inclined surfaces come to a stop.

at The known device has proven to be problematic that the provided accuracy in setting the cutting position today's requirements, where accuracies must be complied with in the micrometer range, not more does justice. Especially at high rotational speeds There may be an inadvertent rotation of the double wedge relative come to the hollow truncated cone and thus to a displacement of the centering jaws to the knife jaws. This leads to a non-centric and unclean cut.

Summary of the invention

It It is an object of the present invention to provide the known device for stripping electrical or optical fibers in relation to to improve the cutting accuracy.

These The object is achieved by a device for removal at least one layer of the sheathing of electrical conductors or Optical fibers with at least one axially displaceable centering unit for centering the conductor in a machining position and with at least one axially displaceable tool for processing at least one Position of the sheath of the conductor, this device at least a first guide element for the leadership of the at least one tool and at least one second guide element for the guidance of the at least one centering unit has, wherein the guide elements against each other radially are arranged offset and are stored against each other, that a relative movement of the guide elements to each other only allowed in the axial direction.

These Arrangement of the guide elements prevented even at high Rotational speeds offset the guide elements against each other, which is supported by the fact that the one guide element as a bearing for the other guide element serves. The radially fixed arrangement and the radial act Be offset the guide elements together by the radial Offset the two guide elements, the moment of inertia the unit of all guiding elements optimized to that a radial relative movement of the guide elements is additionally suppressed to each other.

The This simultaneously achieved mechanical separation of the leadership of tools and the guidance of centering units allowed it also, tools on the one hand and centering units on the other operate with different power lines. In known stripping on the other hand, the knives and centering jaws are arranged directly behind one another, which causes them to coincide with the same or substantially the same Force lines must be operated. Operating the or the tools on the one hand and the at least one centering unit on the other hand, with different lines of force it allows, on lines with wide ranges different Diameters and different hard insulation layers to respond, and nevertheless a high precision of the machining position guarantee.

In In a particularly preferred embodiment, the Guide elements form fit into each other to the special arrangement with radial offset and simultaneous To achieve fixation in the radial direction. It has proved to be Advantageously, the guide elements as substantially form plate-shaped. This allows easy optimization the moment of inertia while saving Material and space requirements.

In most preferred embodiments are accurate a first guide element for the leadership of tools and exactly a second guide element for the guidance provided by centering units, which in order to are arranged offset approximately 90 ° to each other. This allows a particularly compact, space-saving and material-saving construction at optimal moment of inertia, thus also at high rotational speeds of tools and centering units around the conductor to be machined the cutting accuracy is optimized, especially with respect to the position becomes. Even with a higher number of guide elements It is advantageous, the individual guide elements in about constant Arranging angles in the radial direction to each other.

advantageously, At least one of the guide elements has a guide groove in order to define a guide slope, in which engages a lever which with its other end with the at least a tool or the at least one centering unit connected is. It has proven to be advantageous if the Lever at its engaging in the guide end as Cam follower roller is designed to one in their movement to allow as homogeneous a forced guidance as possible.

In In a preferred embodiment, these are at least one Tool and / or the at least one centering unit in a component with guide groove for guiding the tool or the centering unit stored. The at least one tool or the at least one centering unit with the aid of the respective guide elements driving lever is via a ball joint with the at least one tool or at least one centering unit connected. Particularly preferred is the guide in the component for the at least one tool or the at least one centering unit in its direction radially to be stripped Conductor oriented. It has proved to be particularly advantageous when the ball joint is stored with clearance.

A Such construction leads to a result in form-fitting Guiding the at least one tool or at least a centering unit, but where every single component like about guide element with guide groove, cam follower roller, Lever, ball joint and tool or centering unit one each having another degree of freedom. This allows a total positive fit movable construction of the device. In this way it is possible despite high demands on the accuracy and reproducibility the cutting positions or machining positions to be set Device particularly compact to create.

In A preferred embodiment is a drive unit provided with the at least one first and with the at least cooperates a second guide element. This allows a particularly compact and inexpensive construction the device. Tools and centering units are doing simultaneously emotional. The use of radially offset from each other, in their Form independent guiding elements still allows moving the tools on the one hand and the centering units on the other hand with different force characteristics. The different ones Force curves take into account that the centering units only hold the conductors to be stripped in the cutting position while for the tools for Editing usually requires a much higher force is. Particularly preferred are the at least one and the at least second guide element in a substantially axial Direction springy connected. In this case, it is sufficient if the drive unit with only one guide element is firmly connected. Advantageously, the guide element for the at least one tool fixed to the drive unit connected to uniquely define the cutting position, and advantageously becomes the guide element for the at least one Tracking centering tracked.

In a particularly preferred embodiment, the device separate drive units, which with the at least one first guide element on the one hand and with the at least one second guide element on the other hand cooperate. This allows a complete Decoupling the movement of tools on the one hand and centering units on the other hand, now with arbitrarily different lines of force, Speeds and relative axial movements moved to each other can be. This allows arbitrarily designed ladder to edit.

It has proven to be advantageous to form the centering unit in pairs in a V-shaped overlapping manner. The V-shaped overlapping design automatically results in a centering effect on the centerline of the ladder and prevents the ladder from sliding out of the centering unit during machining. This is not only a great advantage during a cutting operation, but also when removing casing layers while simultaneously twisting the stripped conductor, which can be carried out in V-shaped overlapping centering units both in the negative and in the positive direction of rotation. In commercially available stripping machines, in which usually the centering units are directly coupled to the tools and these are arranged directly one behind the other, a V-shaped construction is not possible because the required force at different Cable diameters is too different than that of conventional guides for any conductor could be achieved. So z. B. with thin conductors too high pressure force of the centering units required. There is a risk that the conductors can not be optimally centered. Due to the here proposed independent management of tools on the one hand and centering units on the other hand is exploited that the difference in the movement of centering units on the one hand and tools on the other hand can be geometrically larger. The centering effect can therefore be exploited for very different thickness ladder.

Preferably The device also has a clamping unit for fixed holding of the conductor to be stripped, wherein the clamping unit is formed is that for gripping the conductor linearly radial to the conductor is traversable. The clamping unit holds the ladder behind insertion into the stripping device in a home position firmly. This can be seen in contrast to the centering unit, the one Fine positioning in the cutting plane makes. The peculiarity the clamping unit is that it is designed in such a way that they are used to grip the conductor linearly radially to the conductor is movable. Lead in previously known devices the clamping elements of the clamping unit from a radial movement. Thereby will inevitably be a shift in the center line of the Ladder performed from the center line of the ideal machining position. This is avoided with the linear access clamping unit, which to a further precision of the positioning of the line for the processing steps leads.

Brief description of the figures

The The present invention is intended to be better understood with reference to a preferred Embodiment will be explained in more detail. Show this

1a a perspective view of a first embodiment of the device for stripping conductors;

1b a section from the side of a variant of the embodiment 1a ;

1c a cut from above the in 1b shown variant of the embodiment 1a ;

2a a tool head with drive in the closed state in perspective;

2 B the tool head off 2a in the open state;

2c the tool head off 2a on average;

3 a perspective view of another embodiment of the device for stripping conductors;

4a a view from the front of the device 3 with cut line course;

4b the cut out 4a a tool head with guide elements and drive;

4c an enlarged detail 3b ;

5a a first guide element in section;

5b a second guide element in section;

5c a variant of a guide element in section;

5d a perspective view of the guide element 5c ;

6 a schematic diagram of the leadership of a tool;

7a a perspective view of a possible starting position and

7b a view from the front of a possible starting position.

Detailed description the invention

In 1a is schematically a stripping 100 in perspective, their variant in 1b on average from the side and in 1c shown in section from above. From the left side in the illustrations becomes a cable 200. into a tool head 102 introduced. During processing, the cable becomes 200. through jaws 103 fixed in one position. Relative to the cable to be processed 200. becomes the tool head 102 over the drive 114 driven in rotation. About the drive 115 becomes the tool head 102 moved with the other components in the axial direction. As tools, the stripping device 100 in the present example, knives 101 on. About the drive 113 , Which via a not shown here connecting element with the guide element 106 connected, and over the guide element 106 become the knives 101 operated to sever the topmost layer or the uppermost layers of the cable sheath.

During processing, the cable becomes 200. additionally from a centering unit in exact, held centered machining position, wherein the centering unit in the present example as a pair of centering jaws 108 is executed. Also the centering jaws 108 be about the drive 113 and the guide element 106 opened and closed, with which the actual guide element 109 for the centering jaws 108 resilient over the spring holders 306 is connected in a substantially axial direction. The spring is not shown for the sake of clarity. In the in the 1b c variant shown in section is the tool head 102 schematized for better presentation; the guide elements 106 ' . 109 ' are simplified.

During machining, the tool head rotates 102 with the knives 101 around the axis of the cable end piece 201 to the sheath layer to be detached over the entire circumference of the cable end piece 201 to sever. To separate the sheath layer, the blades remain 101 in their position or are retracted by a very small piece and then move with their cutting edge or with the cutting edge of the sheath layer. By returning the tool head 102 The sheath layer is subtracted from the underlying layers. The individual layers may be insulating or conductive layers. Especially with coaxial or Triaxialkabeln there is a sequence of several different layers. As a rule, in coaxial or triaxial cables, the different layers are severed and removed at one or different lengths.

In the present example, the knives 101 and the centering jaws 108 through the common drive 113 actuated. This is the rotational movement of the drive 113 deflected on the push rod 105 which performs a linear movement in the axial direction. The push rod 105 is directly with the first guide element 106 for the knives 101 connected, as well as in the sectional view in 1b for the first guide element 106 ' you can see. The first guide element 106 respectively. 106 ' engages positively in the second guide element 109 respectively. 109 ' for the centering jaws (see also 1c , Section from above). Both are guide elements 106 . 109 respectively. 106 ' . 109 ' arranged offset by substantially 90 ° to each other. As a result, both guide elements 106 . 109 respectively. 106 ' . 109 ' so mounted against each other, that a relative movement of the two guide elements 106 . 109 respectively. 106 ' . 109 ' each other can take place only in the axial direction. A relative movement in the radial direction is more or less excluded.

In the axial linear movement of the first guide element 106 respectively. 106 ' becomes the second guide element 109 entrained by the fact that both guide elements 106 . 109 respectively. 106 ' . 109 ' over to spring mounts 306 fastened springs are positively connected with each other. This type of coupling of the two guide elements 106 . 109 respectively. 106 ' . 109 ' allows the centering jaws 108 to remain in a slightly more open position, while the knife penetrate deeper into the cable or one of its sheath layers in the course of a separation phase and thus occupy a slightly more closed position. The linear axial movement of the guide elements 106 . 109 respectively. 106 ' . 109 ' will, as will be described below, via levers in the tool head 102 are stored and the cam follower rollers inclined surfaces in the guide elements 106 . 109 respectively. 106 ' . 109 ' descend, in a radial upward and downward movement of the knife 101 or centering jaws 108 transformed.

Throughout the processing of the cable 200. it gets from the jaws 103 held. During the insertion of the cable 200. into the device 100 the jaws are open, ie they are along the guide rod 327 linear radial to the cable 200. ascended. For this they are from the drive 115 (S. 1b ) and its movement is via the cone 118 and the clamping lever 117 on the jaws 103 transfer. The movement across the cable 200. , without radially curved component, ensures that when closing the jaws the cable 200. is held exactly in the inserted position and is not minimally moved up or down. This also causes the position of the knife 101 and centering jaws 108 exact by axial movement of the tool head 102 can be adjusted.

In the 2a . 2 B and 2c are the push rod 105 with the guide elements 106 . 109 and the tool head 102 shown in different views. The 2a shows in perspective the position of the individual components with closed knives 101 and closed centering jaws 108 , while 2 B perspective view of the position of these components in the open state. A section through the closed state is in 2c shown.

In the fully closed state of the knife 101 and centering jaws 108 are both guiding elements 106 . 109 as close as possible to the tool head 102 moved up. The plate-shaped, crosswise nested guide elements 106 and 109 are each equipped with grooves on both sides, the inclined surfaces 301 define. Cam follower rollers roll on these inclined surfaces 304 from. The cam follower rollers 304 are at one end of levers 311 . 312 arranged and convert the axial linear movement of the guide elements 106 . 109 in a radial upward and downward movement of the lever 311 . 312 around. These are the levers 311 . 312 in the tool head 102 about pivot points 314 stored. At the other end are the levers 311 . 312 with the knives 101 or with the centering jaws 108 connected in guide grooves in the tool head 102 be supplied linearly radially to a conductor to be processed.

In the fully open position of the knives 101 and the centering jaws 108 are the guiding elements 106 . 109 as far as possible from the tool head 102 drove away. This contains the cam follower rollers 304 in the position closest to the axis of the push rod unit 105 , Guide elements 106 . 109 and tool head 102 while over the lever 311 . 312 the knife 101 and the centering jaws 108 as far away as possible from it.

As in particular in the 2a to see c, are the knives 101 as well as the centering jaws 108 in guide grooves 323 in the tool head 102 positively guided to ensure an accurate linear movement in the radial direction on the conductor to be machined.

The centering jaw pair 108 is overlapping V-shaped. Due to the V-shape, a wide variety of conductor diameters can be centered by the centering jaws to firmly define the machining position. The overlapping of the legs of the Vs ensures that there is no displacement of the conductor from the working plane when approaching the centering jaws 108 takes place. This further increases the precision in setting the machining position for machining by z. As knives 101 ,

In 3 schematically another preferred embodiment of the device for stripping of cables is shown, for clarity only the essential components for the explanation in 3 are shown. This embodiment differs from the previously discussed embodiment in that both for the first guide elements 106 as well as for the second guide element 109 separate drives 104 . 110 are provided. While the drive 104 via an unillustrated connection element with the guide element 106 is connected and over the guide element 106 the up and down movement of the tool, in the present example, the knife 101 controls is from the drive 110 over the push rod 120 the second guide element 109 for the centering jaws 108 open or closed. The of the drives 104 . 110 generated movement direction is indicated by the double arrows. Both guide elements 106 . 109 can therefore be moved back and forth completely independently of each other. In particular, thereby the centering jaws 108 and the knives 101 be operated with different lines of force and be set in any relative positions. This allows the processing of an even wider range of different cables or conductors and also a wide range of possible processing types.

The plate-shaped, cross-assembled guide elements 106 . 109 can be brought into different relative positions in the axial direction to each other. They can be moved at different speeds. Once the desired position of both the centering jaws 108 as well as the tools or knives 101 is adjusted by the special bearing of the two guide elements 106 . 109 ensures that when rotating the entire unit from tool head 102 and guide elements 106 . 109 Nevertheless, for certain processing steps this special relative position of the two guide elements 106 . 109 and thus the centering jaws 108 and knives 101 is maintained exactly. This allows a high-precision processing of the cable 200. ,

Preferably, not only in the in 3 illustrated embodiment, but also in the in the 1a to c illustrated embodiment, at least one or more drives of the guide elements, but preferably all drives computer controlled. Servo motors are preferably used as drives. The control via a computer has the advantage that the movements of the individual components such as the guide elements or the rotation or lateral displacement of the tool head can be performed reproducibly even with different position and speed profiles. In addition, certain processes can be preprogrammed and combined for a wide variety of conductors in order to provide the user with a large number of processing options for a wide range of conductors without great effort.

In the 4a -C is shown in more detail as the levers 311 . 312 in the tool head 102 are arranged. This was a cut, as in 4a shown laid by a device for stripping cables and the detail b out 4b in 4c shown enlarged. Here are in the 4b , c the two guide elements 106 . 109 shown in the collapsed state.

As well as in the 5a to 5c shown, the guide elements in the present example are plate-shaped, in order to enable them to be inserted into each other by about 90 ° offset form-fitting manner. They have notches 324 . 325 on, whose width is in each case dimensioned so that they correspond to the thickness of the respective other guide element. This storage of both guide elements 106 . 109 against each other is not only space-saving, but also very stable, since a relative movement other than in the axial direction left of the notches 324 . 325 is not allowed. The basic shape of the guide elements and their radial offset angle are also chosen so that a favorable for the rotational movement during most processing steps moment of inertia, if possible without unbalance, is achieved.

Every guide element 106 . 109 in the 5a -D has two opposing guide grooves 308 . 309 . 310 on, which are laterally offset and a pincer-like movement of the tools guided over it like knives 101 or centering jaws 108 to lead. The grooves 308 . 309 . 310 define inclined surfaces 301 . 302 . 303 , which in turn define the movement of the operated tools or centering units. The inclined surfaces may have different angles of inclination, such. B. at the inclined surfaces 308 . 309 , You can also, such. B. the inclined surface 303 , have a curvature leading to a non-constant speed profile at a constant speed of the guide element 111 leads. Depending on the intended processing steps or types of processing different guide elements can be kept, which have a variety of inclined surfaces, which are adapted to the particular desired processing. If necessary, the guide elements can be replaced and reassembled.

In the guide grooves 308 . 309 ( 4c ) grip levers 311 . 312 one at her in the guide elements 106 . 109 engaging ends cam follower rollers 304 . 305 which are on the of the grooves 308 . 309 defined inclined surfaces 301 . 302 roll up and down. The levers 311 . 312 are about fulcrums 314 . 315 in the tool head 102 stored. At her the guide elements 106 . 109 opposite end are the levers 311 . 312 as a ball joint 316 . 317 educated. The ball joints 316 . 317 are in brackets 318 . 319 stored, in turn, with the knife 101 or with a centering jaw 108 are directly connected.

As in 6 shown as a schematic diagram, has the bracket 322 in which the ball joint head 328 of the lever 311 is stored, a recess 320 on. The depression 320 has sufficient play on the linear movement of the guide element 106 about the unwinding of the cam follower roller 304 in the groove 304 of the guide element 106 in a rotational movement of the lever 311 convert. In this case, the cam follower role 304 a ball bearing 321 for more homogeneous unrolling. At the ball joint, this movement is in turn in a linear movement in the radial direction of the knife 101 converted into a corresponding guide groove of the tool head. In this way, a power separation takes place, in which each of the components guide element, lever, knife has a different degree of freedom. The result is a form-fitting movement of the unit out of all these components. In the manner shown, the linear movement in the axial direction of the guide elements in a radially linear and thus exactly defining the machining position movement of the tools or centering unit is simultaneously space-saving and highly accurate.

In the 7a , b are the tool head 102 , the jaws 103 and the just introduced ladder 200. in the starting position before the beginning of the first processing step. The cable to be processed 200. was in the tool head 102 to the stop 112 introduced. To save time, the knives are 101 and the centering jaws 108 just opened so far that the cable 200. can be easily inserted, so that before the start of the first processing step, by stopping the cable 200. to the stop 112 is triggered, only a minimal approach of the knife 101 and / or the centering jaws 108 necessary is. The position of the stop 112 is relative to the knives 101 and the centering jaws 108 so chosen that the imported cable 200. is already in the first processing position in the axial direction. In addition, the tool head 102 relative to the jaws 103 positioned so that the centering jaws 108 already during the insertion of the cable 200. a supporting effect for the cable 200. take. After closing the jaws 103 along the guide rod 327 in a radially linear direction on the cable 200. to what by the stop of the cable to the stop plate 102 Otherwise, it can be triggered especially with thin and / or soft cables 200. sagging, which would make it difficult to accurately set the first processing position.

In 7b is the tool head 102 from the front with inserted ladder 200. shown. The knife 101 and centering jaws 108 are just opened so far that a frictionless insertion of the conductor 200. is possible. The centering jaws practice this 108 with its V-like overlapping form a centering and supporting function.

The embodiments of a device for stripping cables illustrated here by way of example are characterized not only by a very high machining accuracy but also by a large bandwidth of cables which can be processed on the one hand and possible machining on the other hand reached. In particular, in conjunction with a computer control for the individual drives so fully programmable, automatic stripping for single and multi-stage stripping of coaxial or triaxial cables are provided that can be used as a stand-alone device or integrated into a larger production line for a variety of operations ,

100

contraption

101

knife

102

tool head

103

jaws

104

tool drive

105

pushrod

106

first guide element

107

frame

108

centralizers

109

second guide element

110

Zentrierbackenantrieb

111

guide element

112

stop plate

113

Tool / Zentrierbackenantrieb

114

Tool head drive

115

total drive

116

clamp drive

117

terminal cable

118

cone

120

pushrod

200

electric wire

301

sloping surface

302

sloping surface

303

sloping surface

304

Cam follower roller

305

Cam follower roller

306

spring retainer

308

guide

309

guide

310

guide

311

lever

312

lever

313

pushrod

314

pivot point

315

pivot point

316

ball joint

317

ball joint

318

bracket

319

bracket

320

deepening

321

ball-bearing

322

bracket

323

guide

324

notch

325

notch

326

notch

327

guide rod

328

Ball joint head

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• EP 0195932 B1 [0002]

Claims (14)

Device for removing at least one layer of the sheath of electrical conductors or light guides with at least one axially displaceable centering unit ( 108 ) for centering the conductor ( 200. ) in a machining position and with at least one axially displaceable tool ( 101 ) for processing at least one layer of the sheath of the conductor ( 200. ), characterized in that it comprises at least a first guide element ( 106 ) for the guidance of the at least one tool ( 101 ) and at least one second guide element ( 109 ) for the guidance of the at least one centering unit ( 108 ), wherein the guide elements ( 106 . 109 ) are arranged offset from each other radially and are mounted against each other such that a relative movement of the guide elements ( 106 . 109 ) is allowed to each other only in the axial direction. Device according to claim 1, characterized in that the guide elements ( 106 . 109 ) interlock positively. Device according to one of claims 1 or 2, characterized in that the guide elements ( 106 . 109 ) are formed substantially plate-shaped. Device according to one of claims 1 to 3, characterized in that it comprises a first and a second guide element ( 106 . 109 ), which are arranged offset by 90 ° to each other. Device according to one of claims 1 to 4, characterized in that at least one of the guide elements ( 106 . 109 ) at least one guide groove ( 308 . 309 . 310 ), into which a lever ( 311 . 312 ) engaged with the at least one tool ( 101 ) or with the at least one centering unit ( 108 ) connected is. Device according to claim 5, characterized in that the guide groove ( 308 . 309 . 310 ) an inclined surface ( 301 . 302 . 303 ) and the lever ( 311 . 312 ) at its in the guide groove ( 308 . 309 . 310 ) engaging end as a cam follower roller ( 304 . 305 ) is trained. Device according to one of claims 5 or 6, characterized in that the lever ( 311 . 312 ) via a ball joint ( 316 . 317 ) with the at least one tool ( 101 ) or the at least one centering unit ( 108 ), wherein the one or more ball joints ( 316 . 317 ) in a component ( 322 ) with a guide groove ( 323 ) are stored. Device according to claim 7, characterized in that the guide groove ( 323 ) in the component ( 322 ) in their direction radially to the conductor to be stripped ( 200. ) is oriented. Apparatus according to claim 7 or 8, characterized in that the ball joint ( 316 . 317 ) is stored with game. Device according to one of claims 1 to 9, characterized in that it comprises a drive unit ( 113 ), which with the at least one first and with the at least one second guide element ( 106 . 109 ) cooperates. Apparatus according to claim 10, characterized in that the at least one first and the at least one second guide element ( 106 . 109 ) are resiliently connected to each other substantially in the axial direction. Device according to one of claims 1 to 9, characterized in that it comprises a drive unit ( 104 ), which with the at least one first guide element ( 106 ) and a drive unit ( 110 ) connected to the at least one second guide element ( 109 ) cooperates. Device according to one of claims 1 to 12, characterized in that the centering unit ( 108 ) is formed in pairs V-shaped overlapping. Device according to one of claims 1 to 13, characterized in that it comprises a clamping unit ( 103 ) for fixedly holding the conductor to be stripped ( 200. ), wherein the clamping unit ( 103 ) is designed such that it is suitable for gripping the conductor ( 200. ) linearly radially on the conductor ( 200. ) is movable.