Clamping system, handling system, processing station and process for optical fibers with three-dimensional end contours

Abstract

The invention relates to a clamping system (1) for receiving a stripped end section (2) of an optical fiber (3), wherein the clamping system (1) comprises a receiving sleeve (4) with an end-end through-hole (5) dimensioned such that the stripped end section (2) of the optical fiber (3) fits through it in an inserted state, and a clamping sleeve (6) which receives the receiving sleeve (4) at least partially, wherein the clamping sleeve (6) is detachably attached to the receiving sleeve (4), wherein the clamping sleeve (6) has a passage (7) aligned with the end-end through-hole (5) of the receiving sleeve (4), wherein the receiving sleeve (4) extends substantially in its longitudinal direction (8) and has a lateral receiving opening (10), wherein the receiving opening (10) of the receiving sleeve (4) is arranged and configured to insert the optical fiber (3) laterally into the receiving sleeve (4) by insertion or pivoting, andwherein the clamping sleeve (6) covers the receiving opening (10) of the receiving sleeve (4) at least near an end region (11) of the receiving sleeve (4). The invention also relates to a handling system (56), a processing station (101), a method (151) and an optical fiber (3).

Description

[0001] The invention relates to a clamping system for receiving a stripped end section of an optical fiber, wherein the clamping system has a receiving sleeve with an end-side through-hole dimensioned such that the stripped end section of the optical fiber can pass through it in an inserted state, and a clamping sleeve is provided which receives the receiving sleeve at least partially.

[0002] Furthermore, the invention relates to a handling system for processing a stripped end section of an optical fiber, comprising the clamping system and an actuable clamping device.

[0003] Furthermore, the invention relates to a processing station for the shaping of the stripped end section of the optical waveguide, wherein the processing station comprises a laser system designed and configured to irradiate the stripped end section with a laser beam, and a receiving unit for the optical waveguide.

[0004] Additionally, the invention relates to a method for shaping a sheathed end section of an optical waveguide.

[0005] Ultimately, the invention also relates to an optical waveguide comprising a fiber core designed as a light-conducting medium.

[0006] Optical fibers based on (quartz) glass or plastic fibers enable the transmission of optical signals over long distances and at high transmission rates in fiber optic technology. Due to these properties, optical fibers are used, for example, as transmission media for communication systems in data and telecommunications, in fiber optic sensor technology, and in general optical measuring technology. In particular, optical fibers are also used in modern automotive electrical systems for the optical signal / data transmission of automotive high-frequency applications. Couplers, splitters, or connectors are used to connect two optical fibers or a single optical fiber to other interfaces.

[0007] Connectors consist of at least one ferrule and a socket. A ferrule is typically understood to be a guide tube for fibers within a fiber optic connector (e.g., made of ceramic, plastic, glass, or metal). High demands are placed on surface quality in the contact area between two fiber optic cables or between a fiber optic cable and other interfaces. This means that high demands are placed on the surface quality of the fiber optic cable ends, especially the fiber cores. These high demands relate in particular to high optical quality and the minimization of attenuation losses, especially wave losses.

[0008] Since the end sections of optical fibers are usually cut to length or broken, processing of the end sections is usually necessary before connecting two optical fibers.

[0009] In light of the requirements, a defined end-shaping process is beneficial for connecting the two optical fibers with minimal loss. Due to the small diameter of the fiber cores, which are only in the two- to three-digit micrometer range, and the high flexibility of (quartz) glass fibers and plastic fibers, there are high demands placed on any end-section processing and / or end-shaping processes.

[0010] In particular, a defined and reproducible machining position of the end section of the fiber core and its sufficient support must be ensured, and in particular, precise machining of the end section of the fiber core of the respective optical waveguide must be guaranteed through tight form tolerances, position tolerances and manufacturing tolerances.

[0011] In the context of this disclosure, an optical waveguide is a light-conducting conductor containing at least one fiber, but preferably several fibers. The at least one fiber can preferably be made of (quartz) glass or polymer optical fiber (POF). The at least one fiber can consist of at least a core, a cladding, a coating, and a buffering cladding. For glass fibers, a cladding may be provided between the core and the coating, which is not necessary for polymer optical fibers. The buffering cladding can be at least an outer cladding, or alternatively, an outer and inner cladding. In common parlance, the optical waveguide is also referred to simply as a glass fiber or polymer optical fiber. Several optical waveguides form a (glass) fiber cable.The optical fiber can be terminated using connectors. This means that the optical fiber can be arranged in a ferrule, which can be guided, at least partially, in a socket.

[0012] According to the state of the art, the following components, materials and dimensions are known for the construction of the optical waveguide.

[0013] For (quartz) glass fibers, these are a fiber core for light transmission (high-purity quartz glass (SiO2), with a high refractive index; transparent; ø 0.0500 mm ± 0.0025 mm), a cladding / coating (high-purity quartz glass (SiO2), with a low refractive index; transparent; ø 0.125 mm ± 0.001 mm), a ferrule (ceramic (ZrO2); white; ø 1.249 mm ± 0.001 mm) and a socket (brass, electroplated; SW 2.54 mm + 0.05 mm).

[0014] For plastic fibers, these are a plastic fiber as the fiber core for light transmission (polymethyl methacrylate (PMMA); transparent; ø 0.98 mm to 1 mm), a coating (fluoropolymers (POF); transparent; approx. 0.005 mm), an inner sheath (polyamide (PA); black; ø 1.51 mm ± 0.04 mm) and an outer sheath (polyamide (PA); green, yellow, blue or orange; ø 2.30 mm ± 0.07 mm), where the dimensions given are exemplary.

[0015] Specialized clamping systems, in particular clamping fixtures, for laser-assisted shaping of clamped optical fibers are known from the prior art. In particular, publications US 9,810,847 B1, US 9,089,931 B1, EP 0 391 598 B1 and WO 2016 / 077655 A1 are known.

[0016] Document US 9,810,847 B1 discloses methods and systems for producing optical surfaces on optical fibers. Document US 9,089,931 B1 discloses systems and methods for laser slitting of optical fibers. Document EP 0 391 598 B1 discloses a method and a device for producing microlenses on optical fibers. Document WO 2016 / 077655 A1 discloses a method for laser polishing an optical fiber and an optical fiber produced thereby.

[0017] Furthermore, publication US 5,772,720 A discloses a thermoformed end face of an optical fiber.

[0018] The prior art generally discloses end-section processing, particularly end-surface processing, of optical fibers, especially their fiber cores, using laser-assisted and / or mechanical methods. In connection with laser-assisted methods, conventional laser processes are particularly noteworthy. For mechanical methods, grinding and polishing, as well as cutting with knives, are particularly well-known.

[0019] However, there are currently several process-specific and cross-process technical disadvantages to the existing techniques and devices. These disadvantages can be categorized as the impact of the end-section processing on the optical fiber and the limited possibilities for shaping the end sections of the optical fibers. Furthermore, the disadvantages include those related to the end-section processing itself, particularly technical ones.

[0020] In particular, the conventional laser beam method is known to have adverse effects on the surface quality of the optical waveguides.

[0021] The adverse effects are particularly evident in high surface roughness and flaking on cut edges and flanks. Furthermore, microcracks, spalling, and melting of foreign material from the vicinity of the optical fiber often occur on the cut edges, which are attributable to thermal effects.

[0022] This means that the effects are particularly attributable to the heating of cut edges and flanks. Furthermore, effects occur in the form of gravity-dependent, undefined droplet formation and deformation of the optical waveguide, primarily due to thermal expansion.

[0023] In particular, the conventional laser beam method still has disadvantages with regard to end-section processing, especially technical disadvantages.

[0024] The disadvantages lie in the requirement for precise positioning of the optical waveguide at the focus of the laser beam. This necessity arises primarily from the limited depth of field of the laser beam, i.e., its short Rayleigh length. Furthermore, due to the oblique angle of the laser beam's entry point, achieving a right-angle step is difficult or even impossible. Simultaneous processing of different materials is only possible to a limited extent due to their differing absorption and thermal properties.

[0025] Conventional laser beam methods are currently unable to produce a sufficient number of final shapes. Manufacturing convex freeform shapes at the end of an optical waveguide is only possible to a limited extent. In particular, convex freeform shaping is only achievable with poor or non-reproducible quality.

[0026] In particular, grinding and polishing are also known to have adverse effects on the optical fiber.

[0027] Adverse effects include delamination between the coating and the cladding of the optical fiber core. This delamination can occur as detached, i.e., freely moving, particles and can be bound as inclusions at the end segment.

[0028] In particular, grinding and polishing have known disadvantages with regard to end-section processing, especially technical disadvantages. These disadvantages include, in particular, the introduction, deposition, transport, or carryover of coating or covering material onto the end section of the fiber core. Furthermore, grinding and polishing involve a high consumption of auxiliary materials and are very time-consuming. This significant time expenditure is primarily due to the need to perform several work steps.

[0029] Specifically, cutting optical fibers with knives is known to have adverse effects on them. These adverse effects include chipping and crushing at the cut edges, as well as high mechanical stress, particularly on the fiber core (whether made of glass or plastic fiber) and its coating or cladding. Furthermore, cutting with knives is known to have disadvantages regarding end-section processing, especially technical ones.

[0030] Among the disadvantages is the inability to process (quartz) glass or plastic fibers together with a frame, i.e., a fiber arranged within the frame. Furthermore, rework is necessary depending on the requirements for the end section. Additionally, the blades have low durability. The range of achievable shapes is currently insufficient.

[0031] One of the disadvantages is that rectangular, i.e., flat, fiber end sections (fiber end surfaces) are difficult or impossible to achieve.

[0032] The object of the present invention is to achieve an improvement over the prior art. Known disadvantages are to be eliminated or at least reduced.

[0033] In particular, the object of the present invention is to enable efficient processing of an optical fiber connected to a socket and to ensure a defined final shape of the end sections in a reproducible manner.

[0034] This problem is solved by a clamping system with the features of independent claim 1, a handling system with the features of independent claim 11, a processing station with the features of independent claim 17, a method with the features of independent claim 19 and an optical waveguide with the features of independent claim 21, as presented above.

[0035] According to the invention, it is possible to achieve an improved end shape for optical waveguides with previously cut-off, in particular broken, end sections. This means an end shape that requires no post-processing, especially abrasive processing, i.e., grinding.

[0036] Advantageous embodiments are claimed in the dependent claims and are explained in more detail below.

[0037] For the purposes of this description, the directions are to be understood as follows: A longitudinal direction is assumed to be the direction of the longitudinal extension of an optical fiber and thus of the clamping system. The longitudinal direction is referred to as the first direction. A positive orientation is then that which follows the longitudinal extension from the optical fiber towards a distal end segment of the optical fiber. A negative orientation is logically the direction opposite to the positive orientation. The longitudinal direction defines the axial direction.

[0038] Starting from the center of the optical waveguide, a second direction is defined in the direction of the lateral surface of the optical waveguide. That is, the second direction is defined in the radial direction of the optical waveguide. The second direction is thus transverse, specifically orthogonal to the first direction. A third direction is defined in the circumferential direction of the optical waveguide.

[0039] In connection with the handling system and the processing station, the directions are defined according to a Cartesian coordinate system as X-direction, Y-direction and Z-direction.

[0040] In particular, the problem of the clamping system according to a first aspect of the invention is solved by the fact that the clamping sleeve is detachably attached to the receiving sleeve, that the clamping sleeve has a passage aligned with the end through-hole of the receiving sleeve, that the receiving sleeve extends substantially in its longitudinal direction and has a lateral receiving opening, that the receiving opening of the receiving sleeve is arranged and designed to allow the optical fiber to be inserted laterally into the receiving sleeve by insertion or pivoting, and that the clamping sleeve covers the receiving opening of the receiving sleeve at least near an end region of the receiving sleeve.

[0041] In other words, the first aspect concerns the clamping system, designed as a manageable and clampable unit, which is constructed in two parts. Tight tolerances, particularly regarding the form and position of the system components and their structural features relative to one another, ensure, firstly, reproducible positioning of the optical fiber within the clamping system. Secondly, this provides an advantageous seal against media, especially fluids, particularly water, in the clamping system area adjacent to a machining area of ​​an end section of the optical fiber protruding from the clamping system.

[0042] In other words, an optical fiber, including a ferrule and socket, is reproducibly positioned and fixed above and through the clamping system. Specifically, the position of a cut, stripped end section of the optical fiber protruding from the clamping system is reproducibly defined. This means that a defined and reproducible processing position is established for the end section, which is to be processed using laser-assisted end forming. The optical fiber, especially the stripped end section, is precisely centered and perpendicular within the clamping system.

[0043] In this context, an end section refers to a distal end region, that is, a distal end or end face of an optical waveguide. The distal end of the optical waveguide is provided with an end face. The end face of the optical waveguide can be produced, for example, by breaking it with a breaking tool or by cutting the optical waveguide, preferably after removing at least one (protective) sheath. The breaking can preferably be performed at an angle of 90°. That is, the end face is preferably oriented in a first plane with a normal in the longitudinal direction.

[0044] In this context, a stripped end section refers to an optical fiber with at least one removed (protective) cladding, designed to be processed during final forming. This means that at least one cladding (outer cladding or protective cladding) has been removed. For optical fibers with plastic fibers, a second cladding (inner cladding) may also preferably be removed. Preferably, the stripped end section consists of at least one fiber core of the optical fiber. Preferably, a cladding glass and, in the case of (quartz) glass as the fiber material of the optical fiber, an additional coating surrounding the cladding glass are removed.

[0045] In this context, the term "lateral" refers to a direction that is oriented at an angle to the longitudinal direction. If this angle is 90°, this direction is orthogonal to the longitudinal direction and corresponds to the radial direction.

[0046] According to one embodiment, it is advantageous if the receiving opening of the receiving sleeve is designed as a lateral slot, if the slot extends over the entire length of the receiving sleeve, and if the width of the slot in the circumferential direction of the receiving sleeve is designed so that the optical fiber can be inserted through the slot into the interior of the receiving sleeve, in particular parallel to the longitudinal direction.

[0047] This embodiment makes it advantageous to produce a receiving opening in a manufacturing-technical way that is simple, cost-effective and reproducible, for example by milling in series production.

[0048] In this way, preferably tight form and position tolerances of the slot can be maintained and tight position tolerances of the optical waveguide positioned in the slot can be reproduced.

[0049] This embodiment allows the receiving sleeve for the optical fiber to be advantageously designed across the width of the slot. The width of the slot can be advantageously designed to accommodate the diameter of the optical fiber, particularly the diameter of the inner sheath of the optical fiber.

[0050] In this way, in particular, a defined stop of the optical waveguide at the bottom of the slot and tight, preferably very tight, concentricity tolerances can be maintained.

[0051] The interior of the receiving sleeve preferably refers to a center, that is, the central point of the receiving sleeve. A central axis of the preferably rotationally symmetrical receiving sleeve preferably extends through this central point.

[0052] By inserting, placing, or guiding the optical fiber into the interior and parallel to its longitudinal direction, the influence of forces and moments arising during rotation of the clamping system, particularly centrifugal forces, on the optical fiber can be advantageously reduced or avoided. Furthermore, bending moments and shear forces caused by kinking of the optical fiber can be advantageously reduced or avoided.

[0053] Furthermore, imbalance of the receiving sleeve and thus of the clamping sleeve can be advantageously avoided or at least reduced. The respective axes of the receiving sleeve and the optical fiber can thus be advantageously designed with a small distance between them.

[0054] This design effectively prevents damage to the optical fiber caused by mechanical stress. The small spacing of the center axes, preferably a concentric arrangement, allows for tight runout tolerances.

[0055] Alternatively, the optical fiber can preferably be inserted into areas of the receiving sleeve that are radially distant from the central axis. The slot can be provided to a corresponding depth in a radial direction for this purpose.

[0056] According to one embodiment, it is advantageous if the slot is straight and runs in the longitudinal direction of the receiving sleeve, and if the clamping sleeve covers the slot of the receiving sleeve along the entire extent of the end region.

[0057] In other words, the slot can extend longitudinally from one end of the receiving sleeve to the other end and run continuously along this length. This means that the receiving sleeve can be slotted continuously along its entire length.

[0058] This design of the slot advantageously allows for the support and guidance of the optical fiber within the slot. Furthermore, a predetermined length of the optical fiber can be advantageously accommodated.

[0059] In other words, the clamping sleeve can be continuous, i.e., uninterrupted, in the circumferential direction. The clamping sleeve can preferably completely encompass a predetermined area, in particular an end area, of the receiving sleeve. That is, the receiving sleeve can be slotted in at least the entire area covered by the clamping sleeve.

[0060] This embodiment of the clamping sleeve advantageously protects the optical fiber from exiting the slot of the receiving sleeve, for example, due to centrifugal forces occurring during rotation. Furthermore, the optical fiber is advantageously protected within the slot thus designed and enclosed against the ingress of or wetting by media, particularly fluids, especially water.

[0061] In this way, the stress on the optical waveguide caused by mechanical and media influences can be reduced, and damage can preferably be avoided.

[0062] According to one embodiment, it is advantageous if a detachable connection is formed between the receiving sleeve and the clamping sleeve, such that the receiving sleeve and the clamping sleeve form a detachable, manageable unit.

[0063] By designing the clamping system with the receiving sleeve and the clamping sleeve as a detachable, manageable unit, it is advantageously possible to achieve that the unit can be clamped, for example, and is advantageously easy to integrate into other systems.

[0064] By tightening the releasable connection, the receiving sleeve and the clamping sleeve preferably shift slightly in a common longitudinal direction. This shift advantageously allows the optical fiber held in the receiving sleeve to be releasably clamped against at least one sealing surface, or preferably several sealing surfaces, on an inner contour of the clamping sleeve formed over its inner walls. A sealing effect is thus advantageously achieved. The optical fiber can advantageously protrude, in particular, from a front end of the clamping sleeve, i.e., the end facing away from the receiving sleeve.

[0065] The detachable connection can be designed, for example, as a screw connection, a bayonet connection, or a plug connection. The detachable connection can also be designed with a clearance fit or transition fit. The clearance fit or transition fit can be dimensioned to allow sliding while simultaneously ensuring a tight seal.

[0066] According to one embodiment, it is advantageous if the clamping sleeve forms a receiving area on an inner wall adjacent to the aligned passage, which is designed to receive an area of ​​the optical waveguide adjacent to a ferrule of the optical waveguide, in particular in a form-fitting manner.

[0067] In other words, the flush-mounted passage can transition into a receiving area. In other words, the inner cavity of the clamping sleeve can preferably have at least one change in the inner diameter of the clamping sleeve. The area of ​​the optical fiber adjacent to the ferrule can be received into this inner cavity.

[0068] The design of the clamping sleeve makes it advantageous to achieve at least a detachable connection with the inner wall by means of the positive locking of the area of ​​the optical waveguide adjacent to the ferrule.

[0069] According to one embodiment, it is advantageous if the clamping sleeve has a first contact edge on the inside, if the first contact edge forms a first axial stop for a first edge, in particular for an edge of a socket, of the optical fiber received in the receiving sleeve, if the receiving sleeve has a second contact edge on an inner wall that forms a second axial stop for a second edge, in particular for the socket of the optical fiber, if an axial distance between the first contact edge and the second contact edge is matched to a length of the socket, such that an area between the two contact edges, in particular a receiving space between the two contact edges, is matched to a width of the socket, in particular such that the area between the two contact edges forms the receiving area on the inner wall adjacent to the flush-mounted passage.

[0070] In other words, the clamping system can be designed with internal, defined axial stops. These axial stops can be formed by contact edges on the inner contour of the clamping system. The first contact edge can be formed by the inner contour, i.e., by an inner wall of the clamping sleeve. The second contact edge can be formed by an outer contour of the receiving sleeve. Specifically, the second contact edge can be formed by an outer contour of an end region of the receiving sleeve. This, in turn, means that the second contact edge can be formed, in particular, by the end face of the receiving sleeve. Due to their mutually opposing orientation, the first and second contact edges can define the receiving area and the receiving space for the socket by their axial distance.

[0071] Depending on the length of the socket, the end face of the receiving sleeve can be configured to engage with a second contact edge of the receiving sleeve. This third contact edge can extend along the inner contour of the clamping sleeve and be oriented towards the second contact edge of the receiving sleeve. The third contact edge can be positioned radially above the maximum extent of the socket.

[0072] Accordingly, the receiving space can be designed depending on the geometry of the socket. That is, the receiving area can be configured depending on the maximum width and length of the socket. In this context, the maximum width of the socket preferably refers to the wrench size of a hexagonal section of the socket.

[0073] The position of the socket can be determined by the stop against the end face of the receiving sleeve and the stop against the first contact edge. Alternatively, the end face stop surface can preferably be brought into contact with the third contact edge, which is designed as a third axial stop.

[0074] This arrangement advantageously allows the position of the end section to be predetermined, given the length of the socket and the length of the ferrule. For this purpose, tight form and position tolerances are advantageously maintained for the socket, the ferrule, the length of the end section of the optical fiber, as well as for the clamping sleeve and the receiving sleeve. For example, a defined receiving and positioning of the optical fiber, the ferrule, and the socket of, say, a connector, can be advantageously achieved.

[0075] In this way, preferably tight form and positional tolerances can be achieved for the clamping system. This allows an advantageous machining position of the end section of the optical fiber in relation to the clamping system to be predetermined and reliably ensured.

[0076] According to one embodiment, it is advantageous if, by tightening the detachable connection, the section of the optical waveguide received in the receiving area of ​​the clamping sleeve can be clamped against a first sealing surface surrounding the through-hole at the end.

[0077] In other words, a positive-locking and force-locking connection can preferably be achieved by tightening the detachable connection via the inner contour of the clamping sleeve and the optical fiber, in particular the ferrule connected to the optical fiber and the socket of a connector. In particular, the positive-locking and force-locking connection can be achieved via external surfaces, especially outer sheath surfaces, of the ferrule and the socket, or partial areas of the outer sheath surfaces.

[0078] The positive and non-positive connection advantageously allows for the formation of a favorable coarse seal by the ferrule in the through-hole. Furthermore, the socket, particularly a hexagonal section of the connector socket, advantageously provides a second sealing surface within the receiving area. This second sealing surface is preferably formed by a longitudinally extending inner wall of the clamping sleeve and an outer surface of the socket, particularly the hexagonal section of the socket, that abuts this inner wall.

[0079] Furthermore, a third sealing surface can preferably be achieved by contacting an end face of the socket, i.e., a surface of the ferrule facing the ferrule and axially oriented, against the first axial stop. This third sealing surface is preferably advantageously designed as a fine seal by contacting the end face of the socket against the first axial stop.

[0080] In this way, the tightness of the optical fiber section held in the clamping sleeve, which is important for the final shaping of the stripped end section of the optical fiber, can be achieved. The tightness is preferably guaranteed for at least a period of four seconds.

[0081] According to one embodiment, it is advantageous if the inner diameter of the passage of the clamping sleeve is matched to the outer diameter of the ferrule in such a way that the ferrule can penetrate the passage with reduced air, i.e. with clearance, in particular forming a shear fit, i.e. a clearance fit.

[0082] By matching the diameter of the passage to the outer diameter of the socket, the ferrule can be advantageously and reproducibly inserted through the passage, preferably by a sliding motion. Removing the ferrule from the passage, i.e., from the clamping system, is also advantageously and easily accomplished in this way.

[0083] The clearance fit also makes it advantageously easy to remove the ferrule from the passage. Preferably, the use of sealants, such as adhesives, is advantageously avoided. Assembly times for installing the optical fiber in the clamping system are advantageously short. This is preferably due to the fact that, for example, curing of an adhesive or drying of sealants is unnecessary and avoidable.

[0084] This ensures simple and repeatable positioning of a stripped end section through the through-hole. Furthermore, it ensures the tightness of the clamping system against media ingress, particularly fluid ingress, from outside the clamping sleeve.

[0085] In this way, the optical waveguide can in particular be preferably protected against fluid ingress, especially against wetting, for the duration of laser processing of the end section.

[0086] Furthermore, the ability to re-extract the optical fiber, particularly the ferrule, from the through-hole ensures multiple uses of the clamping system. This reuse is achievable depending on and in accordance with the ferrule being processed and / or the outer diameter of the stripped optical fiber.

[0087] According to one embodiment, it is advantageous if a retaining projection, in particular a circumferential ring collar, is formed on an outside of the clamping sleeve.

[0088] In other words, a circumferential retaining projection can preferably be provided. The retaining projection can be equipped with an external axial stop on one side facing the receiving sleeve.

[0089] The preferred retaining projection on the outside of the collet and the receiving area on the inside of the collet, which is particularly dimensionally stable, offer an advantage. This advantage is that during machining, for example when positioning, aligning, or gripping the retaining projection, a defined and predictable distance to the collet's opening can be maintained.

[0090] An advantage can be realized through the passage, which can terminate in an end face of the clamping sleeve, in which a through-opening of the clamping sleeve passage facing away from the clamping sleeve can be formed. The advantage can consist of the fact that a predetermined projection of the ferrule relative to an end face of the clamping sleeve, in which a through-opening of the clamping sleeve passage facing away from the clamping sleeve can be formed, is adjustable.

[0091] The adjustable overhang, in particular by a predetermined amount, of the ferrule relative to the end face of the clamping sleeve allows a reproducible machining point to be maintained and preferably predetermined.

[0092] In this way, reproducible laser-assisted final forming of the end section of the clamping sleeve can be ensured. This effect is preferably achievable both when the clamping system is gripped, i.e., during rotary machining, and when the clamping system is inserted into a machining opening, i.e., during linear machining.

[0093] According to one embodiment, it is advantageous if the clamping sleeve is essentially rotationally symmetrical about its axis of rotation and if the receiving sleeve has a central axis, if a screw axis and the central axis are aligned with each other, and if the passage of the clamping sleeve and the end-side through-hole of the receiving sleeve are centered on the central axis.

[0094] In other words, the ferrule can preferably be rotatably mounted within the passage of the collet about this central axis, so that the end section of the ferrule to be machined can rotate relative to the assembly of collet and receiving sleeve.

[0095] In this way, the assembly consisting of the clamping sleeve, the receiving sleeve, and the optical fiber housed within the receiving sleeve can be handled with advantageous ease. Furthermore, the assembly can be machined with advantage using rotary processes.

[0096] In particular, the problem in the handling system is solved according to a second aspect in the invention by the fact that the actuable clamping means rests on the outside of the clamping sleeve of the clamping system and that, when actuated, the actuable clamping means clamps the clamping system against a clamping fixture.

[0097] In other words, the second aspect concerns a handling system that ensures a defined and reproducible clamping and positioning of the clamping system, in particular the clamping sleeve of the clamping system, by means of the actuable clamping device and the clamping fixture, specifically through positive and non-positive locking. This applies particularly under the forces and moments occurring during the manufacturing process of the cut and stripped end section of the optical fiber. The clamping can be achieved and released by actuating the clamping device.

[0098] Due to the very tight tolerances of the handling system, particularly with regard to the clamping fixture and the clamping device, a reproducible positioning of the clamping system and thus of the optical fiber can be advantageously ensured. Furthermore, reproducible positioning is advantageously achieved by a retaining projection of the clamping system and its stop against the clamping fixture and / or the actuated clamping device.

[0099] According to one embodiment, it is advantageous for the handling system for the particularly rotary processing of the stripped end section of the optical fiber if the actuated clamping device is designed as an actuated, in particular spring-loaded, collet chuck, if the clamping system is arranged within clamping jaws of the spring-loaded collet chuck, i.e., surrounded by the clamping jaws of the collet chuck, if, when the spring-loaded collet chuck is actuated, the clamping jaws bear substantially from the radial direction against the outside of the clamping sleeve and, in particular, bear against a retaining projection, in particular designed as a circumferential annular collar, on the outside of the clamping sleeve, if the spring-loaded collet chuck is arranged within a clamping receptacle designed as a hollow shaft, and if the hollow shaft is, in particular, part of a directly driven motor.

[0100] In other words, the clamping system can preferably be fixed directly via the clamping sleeve and the clamping jaws in both the radial and circumferential directions. The longitudinal position of the clamping sleeve can be determined by the clamping jaws' stop against the circumferential annular collar. The clamping sleeve can advantageously be detachably fixed and released via the clamping jaws. By designing the clamping device within the clamping receptacle, which is configured as a high shaft, it is preferably possible for the clamping receptacle to be moved by the directly driven motor or to move in conjunction with the motor.

[0101] This embodiment preferably makes it possible to advantageously position the clamping system, and thus the stripped end section of the optical fiber, in a defined manner via the clamping device. By integrating the clamping device into the geometrically rigid hollow shaft, a unit defined in shape (dimensions) and position can advantageously be achieved, which, via integration into the motor, can preferably be driven or moved.

[0102] This ensures that the clamping system remains securely fixed. Furthermore, it allows for maintaining a predetermined machining position of the stripped end section of the optical fiber during rotation. Adherence to tight tolerances in form, position, and especially concentricity can be advantageously ensured.

[0103] According to one embodiment, it is advantageous for a handling system for the particularly linear processing of the stripped end section of the optical fiber if the actuated clamping device is designed as a clamping element that is linearly adjustable, in particular from one side in a radial direction towards the clamping sleeve, if the clamping element rests on the outside of the clamping sleeve of the clamping system, and if, when the clamping element is actuated, it presses the clamping sleeve into a receiving contour of a receiving groove in the clamping receptacle and covers the receiving groove against removal of the clamping sleeve.

[0104] In other words, the clamping system can preferably be clamped to or against the clamping fixture via the clamping sleeve and the clamping device. In this way, a positive and / or non-positive connection and a predetermined positioning of the clamping system via the clamping sleeve can preferably be achieved.

[0105] This embodiment preferably ensures a defined and predetermined position and fixation of the clamping system via the clamping sleeve.

[0106] In this way, a preferably positionally accurate machining of the stripped end section of the optical waveguide can be advantageously achieved within the framework of a manufacturing-related final shaping.

[0107] According to one embodiment, it is advantageous for a handling system for the particularly linear processing of the stripped end section of the optical fiber if the adjustable clamping element is designed as a plate, if the clamping receptacle has a surface into which the clamping sleeve can be recessed, if, when the plate is actuated, it is pressed in the direction of the surface in such a way that a pressure section of the plate presses on a section of the clamping sleeve, so that the clamping sleeve is pressed against a groove base in the receiving groove, and if, in particular, an elastically deformable material is arranged in the area of ​​the pressure section.

[0108] In other words, the clamping device in this embodiment can preferably be designed as a linear clamping device such that the clamping sleeve of the clamping system can be arranged in the linear clamping device. Preferably, the clamping sleeve can also be fixed in position by means of the clamping device in this embodiment, preferably by pressing it against the clamping device. The plate is preferably clampable against the linear clamping device and a section of the clamping sleeve's outer surface by means of a clamping element. Possible embodiments of the clamping element include screws for screwing, clamps for creating a clamping connection, or magnets for achieving a magnetic connection.

[0109] The plate can preferably completely or substantially cover the opening of the clamping receptacle. To protect the clamping sleeve, a pressure section is provided in the area of ​​the plate section that presses against the clamping sleeve, i.e., a pressure area. The pressure section is preferably made of an elastically deformable material, for example, a soft rubber plate. Furthermore, to protect the clamping sleeve during insertion and / or to facilitate insertion, the edges of the opening in the receptacle groove can preferably be chamfered or rounded.

[0110] This embodiment makes it advantageously possible to position and fix the clamping sleeve and thus the clamping system preferably by (pressure) force and form locking.

[0111] This ensures a predetermined processing position for the end section of the optical fiber. This predetermined processing position can be ensured even under the influence of processing forces and / or moments.

[0112] According to one embodiment, it is advantageous for a handling system for the particularly linear processing of the stripped end section of the optical fiber if the adjustable clamping element is designed as a slide, if the clamping sleeve rests flat against a first contour surface of the receiving groove, and if, when the slide is actuated, a second contour surface of the slide clamps the receiving groove between the first contour surface and the second contour surface in such a way that the opening of the receiving groove is closed or laterally shortened.

[0113] In other words, the clamping sleeve can be positioned and fixed via the first and second contour surfaces. The clamping sleeve can preferably be pre-positioned in the first contour surface of the receiving groove from a first side, thus preventing it from falling out or moving out. For this purpose, a predetermined section of the cylindrical surface can preferably be received via the first receiving groove. Using the slide, as an embodiment of the clamping device, which can preferably be moved via a push piece, the clamping sleeve, pre-positioned via the first contour surface, can be fixed in a form-fit and force-fit manner via the second contour surface of the slide.

[0114] The second contour surface can be oriented opposite to the first contour surface. The first contour surface can preferably have a mirror-symmetrical geometry that essentially reflects the curvature / roundness of the optical waveguide, i.e., a clamping shape. However, other embodiments of the contour surfaces are also conceivable, particularly the clamping shape of the slide. In the circumferential direction, at least 75% of the lateral surface of the clamping sleeve can be encompassed by the first and second contour surfaces.

[0115] Preferably, the slide can be designed with a handling section configured as a pressure piece. The slide can be displaced via the handling section, preferably in the direction of the first contour surface, to clamp the clamping sleeve. Preferably, the slide can press against a spring element, for example, a compression spring. Preferably, the position of the slide can also be releasably fixed after clamping the clamping sleeve. Preferably, to release the clamping, the fixing of the slide can be released, and the clamping sleeve can be released by utilizing the springback of the compression spring after the clamping force is removed.

[0116] This embodiment preferably makes it advantageous to ensure the position of the clamping sleeve.

[0117] This ensures a predetermined processing position for the end section of the optical fiber.

[0118] According to one embodiment, it is advantageous for a handling system for the particularly linear processing of the stripped end section of the optical fiber if the clamping device has two or more receiving grooves, each designed to receive a clamping sleeve, if a single adjustable clamping element is provided, the actuation of which presses the respective clamping sleeve into the respective receiving contour and covers the receiving groove against removal of the clamping sleeve.

[0119] In other words, by using a clamping element, it is possible to clamp several clamping sleeves.

[0120] This embodiment preferably allows for shorter assembly times for the handling system, and the stripped end sections of the optical fibers arranged in several clamping systems can preferably be processed sequentially, but advantageously during a single processing operation. This reduces setup times.

[0121] In particular, the problem at the processing station is solved according to a third aspect according to the invention by the fact that the receiving unit receives the optical fiber near the sheathed end section, that the receiving unit has the two-part clamping system according to the disclosure, that the two-part clamping system detachably fixes and watertightly receives the optical fiber for the duration of the processing, and that the clamping system is arranged in a handling system according to the disclosure.

[0122] In other words, the third aspect concerns a processing station that, via the receiving unit and the handling system, ensures a defined and reproducible position of the stripped end section of the optical fiber relative to the laser system, and in particular relative to a laser beam of the laser system. This defined and reproducible position is ensured primarily by the tight tolerances, especially the very tight positional and concentricity tolerances of the handling system and the clamping system within the processing station. High positioning and movement accuracy of the processing station ensures advantageously high and reproducible form accuracy, positional accuracy, and precise perpendicularity.The precise and central alignment of the optical fiber in the clamping system makes it advantageous in the processing station that, in particular, the stripped end section can be positioned precisely, moved homogeneously, and shaped to a defined final form.

[0123] The processing station ensures reproducible shape and positional accuracy, as well as a surface quality advantageous with regard to damping losses, for the stripped end section. Particularly for a fiber core, despite its small size and high flexibility, the processing of the stripped end section can be achieved and reliably guaranteed.

[0124] According to one embodiment, it is advantageous if the laser system provides a laser beam guided in a fluid jet, in particular a water jet-guided laser beam, if the laser beam is stationary and the receiving unit for the optical waveguide is arranged in a defined manner relative to the laser beam, in particular in a defined rotating or defined longitudinally displaceable manner.

[0125] In this context, a receiving unit refers to a unit with a controlled or controllable drive. The receiving unit can be designed for the direct receiving and adjustment of the clamping system. Alternatively, the receiving unit can be designed for receiving the handling system and, preferably, for its adjustment. Alternatively, the receiving unit can also be designed as a manipulator.

[0126] The embodiment using a laser beam, preferably a water-jet-guided laser beam, advantageously enables laser-assisted processing of the stripped end section of the optical waveguide. This is particularly advantageous due to the high parallelism and dimensional stability of the laser beam, as well as the achievable continuous cooling and removal of contaminants. These advantages include, preferably, high dimensional and angular accuracy, high optical surface quality, reduced thermal effects and the resulting microcracking, and avoidable or reducible contamination of the processed surface. Furthermore, a large working range, preferably at a distance from the nozzle of 5 mm to 50 mm, is advantageously achievable.Furthermore, materials such as metals, ceramics, plastics, glass, or diamonds can preferably be processed simultaneously in layered construction (sandwich construction) without mutual interference. In addition, material thicknesses of up to 20 mm can be processed advantageously.

[0127] In this way, surfaces can be produced reproducibly. Furthermore, the large working range eliminates the need for focus position determination and / or distance control. The end section of the optical waveguide can preferably be moved freely within this range.

[0128] It is also conceivable to use a conventional laser beam with inert gas instead of the water-jet-guided laser beam.

[0129] The design of the handling unit, incorporating a stationary laser and a precisely movable receiving unit, advantageously enables a preferably defined, reproducible, and precise final shaping, i.e., achieving tight tolerances. The final shaping of the stripped end section of the optical fiber is thus advantageously possible, preferably using an NC-controlled axis system.

[0130] As an embodiment, it is conceivable that the stripped end section of the optical fiber guided in the clamping system is processed directly by the laser beam. This direct processing can be achieved, for example, with a three-dimensional manipulator such as an action robot. The action robot can position the end section of the optical fiber directly in the laser beam via the clamping system and move it to generate three-dimensional end contours. The receiving unit can be designed such that the clamping system is adjustable via the directly controllable drive.

[0131] As a further embodiment, it is conceivable that the stripped end section of the optical fiber is guided in a receiving unit within the clamping system, picked up by the handling system, and inserted into the processing station in a predetermined position. The receiving unit can be designed such that the handling system is adjustable via the directly controllable drive.

[0132] In particular, the problem is solved according to a fourth aspect of the method according to the invention by providing, in a first step (S1), a cut-to-length optical waveguide with a sheathed end section, providing, in a second step (S2), a water-jet guided laser beam directed at the end section of the optical waveguide, and, in a third step (S3), guiding the water-jet guided laser beam and the optical waveguide relative to each other in space such that the laser beam generates a defined end contour at the sheathed end section of the optical waveguide.

[0133] In other words, the fourth aspect concerns a process that reliably achieves a defined and reproducible final shape for the stripped end section of the optical fiber. This final shape requires a defined and reproducible end contour. Furthermore, the waterjet-guided final shaping results in a significantly high surface quality.

[0134] According to one embodiment, it is advantageous if, in step (S1), the optical fiber is clamped in a clamping system according to the disclosure, in particular in a handling system according to the disclosure, and if, in step (S3), the shaping of the end section is carried out in a processing station according to the disclosure.

[0135] In other words, an end contour, in particular the end surface contour, of the optical waveguide is produced in the form of a convex lens.

[0136] In this context, a cut-off end section means an end section that can preferably be produced by cutting or breaking an optical waveguide, preferably after scoring.

[0137] The laser beam, particularly the water-jet guided laser beam, advantageously removes material from the detached end section by means of a defined melting and solidification of the end section material. Simultaneously, the preferably water-jet guided laser beam enables the defined removal of particles released during final forming from a processing zone of the end section.

[0138] Laser processing advantageously reduces mechanical stresses resulting from the laser operation. The water jet effectively dissipates heat generated during processing from the processing zone, thus reducing the impact of thermal effects.

[0139] In this way, a high and reproducible surface quality can be achieved. In particular, high optical quality can also be achieved by avoiding particle inclusion on the final section. Roughness resulting from laser processing can at least be reduced.

[0140] In particular, the problem with the optical waveguide is solved according to a fifth aspect of the invention by the fact that the sheathed end section, i.e. in particular the fiber core, has a defined end contour, and that the end contour of the fiber core was produced by a fluid-beam-guided, in particular a water-beam-guided, laser beam.

[0141] In other words, the fifth aspect concerns an optical waveguide whose fiber core has a reproducibly achieved three-dimensional end contour as a convex freeform shape and a high surface quality through the final forming process. The high surface quality is achieved in particular by reducing thermal and mechanical influences and inclusions. The surface quality is achieved primarily through a high optical surface finish with low attenuation losses and minimal processing effort. After final forming, the end section of the optical waveguide, i.e., the fiber core, is preferably designed as an end-face lens.

[0142] According to one embodiment, it is advantageous if the final contour of the fiber core is produced, in particular using a clamping system as disclosed, in particular using a handling system as disclosed, in a processing station as disclosed, in particular using a method as disclosed.

[0143] By combining the clamping system, the handling system and the processing station, advantageously tight form and position tolerances can be maintained and thermal and mechanical influences from the forming process can be avoided.

[0144] This type of final forming enables the production of an optical fiber with a significantly high surface quality and reproducible, precise, three-dimensional, variable lens shapes. Furthermore, the end section of the optical fiber can be machined together with the ferrule and connector socket, allowing the ferrule and optical fiber to be processed in a single operation.

[0145] Features disclosed in connection with the clamping system according to the invention also apply in connection with the handling system according to the invention, the processing station according to the invention, the method according to the invention and the optical waveguide according to the invention, and vice versa, so that with regard to the disclosure of the individual aspects of the invention, mutual reference is always made or can be made.

[0146] The invention is explained in more detail below with the aid of drawings. Preferred embodiments of a clamping system, a handling system, a processing station, and an optical fiber according to the invention are shown. Fig. Figure 1 shows a schematic representation of a first embodiment of a clamping system according to the invention in a longitudinal sectional view, Fig. 2a shows a schematic component representation of a receiving sleeve of the clamping system according to Fig. 1 in a partial view, Fig. 2b shows a schematic representation of the receiving sleeve according to Fig. 2a in a cross-sectional view according to section area IIb from Fig. 2a, Fig. Figure 2c shows a schematic representation of the clamping sleeve 6 for the clamping system 1. Fig. 1 in a longitudinal section view, Fig. Figure 3a shows a schematic representation of a handling system for the rotary processing of a stripped end section of an optical fiber in an open collet state. Fig. Figure 3b shows a schematic representation of a clamping sleeve of the clamping system in a handling system for rotary machining, clamped in the closed state of the clamping jaws, in a top view. Fig. Figure 3c shows a schematic representation of a handling system for the rotary processing of a stripped end section of an optical fiber in a closed collet state. Fig. 3D shows a schematic representation of a clamping sleeve of the clamping system in a handling system for rotary machining, clamped in the open state of the clamping jaws, in a top view. Fig. Figure 4a shows a schematic representation of a handling system for the linear processing of a stripped end section of an optical waveguide in a closed system state in a first embodiment in a first side view. Fig. Figure 4b shows a schematic representation of a handling system for the linear processing of a stripped end section of an optical waveguide in a first embodiment in a second side view. Fig. Figure 4c shows a schematic representation of a handling system for the linear processing of a stripped end section of an optical waveguide in a first embodiment in a third side view. Fig. Figure 4d shows a schematic representation of a handling system for the linear processing of a stripped end section of an optical waveguide in a first embodiment in an open system state. Fig. Figure 4e shows a schematic representation of a handling system for the linear processing of a stripped end section of an optical waveguide in a closed system state in a first embodiment, Fig. Figure 5a shows a schematic representation of a handling system for the linear processing of a stripped end section of an optical fiber in a side view in a second embodiment. Fig. 5b shows a detailed view of a cross-sectional area of ​​region Vb from Fig. 5a for a handling system for the linear processing of a stripped end section of an optical fiber in a second embodiment, Fig. Figure 5c shows a schematic representation of a handling system for the linear processing of a stripped end section of an optical fiber in a top view in a second embodiment. Fig. Figure 6a shows a schematic representation of a processing station for the linear processing of a stripped end section of an optical waveguide in a first side view. Fig. Figure 6b shows a schematic representation of the processing station for the linear processing of a stripped end section of an optical fiber in a second side view. Fig. Figure 6c shows the feed for a material removal quantity across the X-axis for a processing station for the linear processing of the end section of an optical fiber by a laser beam. Fig. Figure 6d shows a schematic representation of a processing movement along the Y-axis for a processing station for the linear processing of the end section of an optical waveguide by a laser beam. Fig. Figure 6e shows a schematic detail representation of a machining movement along the Y-axis as an enlarged section VIe from the Fig. 6d, Fig. Figure 7a shows a schematic representation of a processing station for the rotary processing of a stripped end section of an optical waveguide in a first side view, Fig. Figure 7b shows a processing station for the rotary processing of a stripped end section of an optical waveguide in a second side view. Fig. Figure 7c schematically shows the technical principle of final shaping by a processing station for the rotary processing of a stripped end section of an optical waveguide, Fig. Figure 7d shows a schematic detail of an angle of incidence of a laser beam to an end section of an optical waveguide as excerpt VIId from Figure 7d. Fig. 7c, Fig. Figure 7e shows a schematic detail of the angle of incidence of a laser beam to an end section of an optical waveguide as excerpt VIIe from Figure 7e Fig. 7c, Fig. Figure 7f schematically shows the technical principle of the final forming in a processing station for the rotary processing of a sheathed end section of an optical waveguide by means of the movement of a C-axis in a second embodiment. Fig. Figure 7g shows a schematic detail of an angle of incidence of a laser beam to an end section of an optical waveguide as a section VIIg from Fig. 7f, Fig. Figure 8a shows a schematic representation of a fixing of a second end of a short optical waveguide for a processing station for a rotary processing of a sheathed end section of an optical waveguide in a first embodiment, Fig. Figure 8b shows a schematic representation of a fixing of a second end of a long optical waveguide for a processing station for rotary processing in a first embodiment, Fig. Figure 9 shows a flowchart of a method for shaping the stripped end section of an optical waveguide in a third embodiment, Fig. Figure 10a shows a homogeneous, convex lens shape of the end section of an end-shaped optical waveguide according to the disclosure in a first embodiment, Fig. Figure 10b shows a radial, stepped lens shape of the end section of an end-shaped optical waveguide according to the disclosure in a second embodiment, and Fig. Figure 10c shows a faceted lens shape of an end section of an end-shaped optical waveguide according to the disclosure in a third embodiment.

[0147] The drawings are purely schematic and serve only to illustrate the invention. The same elements are identified by the same reference numerals. The features of the individual embodiments may be mutually complementary or interchangeable. Description of preferred embodiments

[0148] Fig. Figure 1 shows a schematic representation of a clamping system 1 according to the invention in a first embodiment in a longitudinal section view. The clamping system 1 is designed for positioning a stripped end section 2 and for receiving an optical fiber 3. The clamping system 1 is designed as a high-precision clamping system and is made up of two parts.

[0149] The clamping system 1 comprises a receiving sleeve 4 with an end through-hole 5. The through-hole 5 is dimensioned such that the stripped end section 2 of the optical fiber 3 protrudes through the end through-hole 5 when inserted.

[0150] The clamping system 1 further comprises a clamping sleeve 6. The clamping sleeve 6 receives the receiving sleeve 4, at least partially. The clamping sleeve 6 is designed as a clamping nut. The clamping sleeve 6 is detachably attached to the receiving sleeve 4. The detachable attachment can be, for example, a screw connection or a bayonet connection.

[0151] The clamping sleeve 6 has a through-hole 7 at one end facing away from the receiving sleeve 4. The through-hole 7 is preferably hollow cylindrical and formed via a through-bore. The through-hole 7 is aligned with the end through-hole 5 of the receiving sleeve 4. That is, the through-hole 7 and the end through-hole 5 are arranged coaxially with each other.

[0152] The receiving sleeve 4 extends substantially in a longitudinal direction 8. The longitudinal direction 8 is parallel to a direction of extension of the optical fiber 3. The receiving sleeve 4 is provided with a lateral receiving opening 10. Lateral means from a direction at an angle to the longitudinal direction 8. Preferably, this angle can be 90 degrees, so that the receiving opening 10 is oriented in a radial direction 9 and thus transversely to the longitudinal direction 8. The receiving opening 10 extends continuously along the longitudinal direction 8.

[0153] The receiving opening 10 of the receiving sleeve 4 is arranged and designed to receive and position the optical fiber 3. The optical fiber 3 can be inserted into the receiving sleeve 4 by lateral insertion, more preferably by lateral insertion or insertion, or more preferably by lateral pivoting.

[0154] The optical waveguide 3 is preferably inserted exactly orthogonally to the longitudinal direction 8 from the radial direction 9. This means that the optical waveguide 3 is inserted parallel to an extension of the receiving sleeve 4 in the longitudinal direction 8.

[0155] The section-by-section receiving or being received of the receiving sleeve 4 by the clamping sleeve 6 is manifested in such a way that the clamping sleeve 6 engages the receiving opening 10 of the receiving sleeve 4 at least near an end region 11 (see also Fig. 2a) the receiving sleeve 4 is covered. The clamping sleeve 6 preferably covers the receiving opening 10 along its entire extent in the end region 11.

[0156] An extension of the end region 11 in longitudinal direction 8 determines the overlap by an extension 12 of the end region 11 (see also Fig. 2a) The receiving opening 10 of the receiving sleeve 4 is designed as a lateral slot. The receiving opening 10, designed as a lateral slot and continuous, extends along the entire length 8 of the receiving sleeve 4. That is, the receiving opening 10 extends over the entire length 13 of the receiving sleeve 4.

[0157] One in Fig. The width 14 of the receiving opening 10 shown in 2b is designed in a circumferential direction 15 of the receiving sleeve 4 such that the optical fiber 3 passes through the receiving opening 10 into a Fig. The internal cavity volume 16 of the receiving sleeve 4 shown in 2b can be used. The internal cavity volume 16 is defined by a Fig. 2b shows the extent of the receiving opening 10 in the radial direction 9, in the longitudinal direction 8 and in the circumferential direction 15.

[0158] The receiving sleeve 4 and the clamping sleeve 6 are connected by a detachable connection 17, in particular by a positive locking mechanism. The detachable connection 17 can be designed as a screw connection, a bayonet connection, or a plug connection. The receiving sleeve 4 and the clamping sleeve 6 form a detachable, manageable unit.

[0159] Fig. Figure 2a shows a schematic component representation of a receiving sleeve 4 of the clamping system 1 according to the disclosure. Fig. 1 in a partial view.

[0160] The end region 11 borders a proximal section 19 of the receiving sleeve 4 in a positive orientation 18 of the longitudinal direction 8. The end region 11 comprises a first sub-region 20 and a second sub-region 21.

[0161] The first subsection 20 connects to the proximal section 19 in the positive orientation 18 of the longitudinal direction 8. The second subsection 21 connects to the first subsection 20 in the positive orientation 18 of the longitudinal direction 8. The first subsection 20 is designed and configured as a fastening section to fasten the receiving sleeve 4 and the clamping sleeve 6 to each other via a releasable connection 17.

[0162] The second sub-section 21 has a distal end section in the positive orientation 18 of the longitudinal direction 8, which is provided with an end-face stop surface 22. A second diameter 23 of the end section 11 is reduced compared to a first diameter 24 of the proximal section 19 of the receiving sleeve 4 in order to accommodate the Fig. The clamping sleeve 6 shown in Figure 2c is to be received flush in the radial direction 9, particularly laterally. The inner cavity 16 has a continuous course in the longitudinal direction 8, in the radial direction 9, and in the circumferential direction 15. That is, the inner cavity 16 is continuous throughout.

[0163] Fig. Figure 2b shows a schematic representation of the receiving sleeve 4 for a clamping system 1 as disclosed in a cross-sectional view according to section IIb. Fig. 2a.

[0164] The cross-sectional view shows section IIb from Fig. 2a. In particular, the extension of the receiving opening 10, designed as a slot, in the radial direction 9, i.e. a depth 25 of the receiving opening 10, and in the circumferential direction 15, i.e. the width 14 of the receiving opening 10, is shown.

[0165] The depth 25 ( Fig. 2b), the width 14 and the in Fig. The length 13 shown in 2a determines the inner cavity volume 16 of the receiving sleeve 4. The width 14 of the receiving sleeve 4 is preferably designed depending on a diameter of a sheath (not shown), in particular an inner sheath of the optical waveguide 3 (not shown).

[0166] Fig. Figure 2c shows a schematic representation of the clamping sleeve 6 for a clamping system 1 according to the disclosure in a longitudinal section view.

[0167] The clamping sleeve 6 is essentially hollow cylindrical and, viewed in the longitudinal direction 8, is formed by a receiving section 26 and a clamping sleeve end section 27. The receiving section 26 is designed to receive an optical fiber 3 (not shown) and to allow the end region 11 of the receiving sleeve 4 to pass through it.

[0168] The clamping sleeve end section 27 is closed except for the passage 7. The passage 7 has a predetermined passage length 28. The passage 7 is designed to receive a Fig. The ferrule 29 of an optical waveguide 3, as shown in Figure 6c, is arranged. The passage length 28 is designed such that the ferrule 29 is only partially located in the passage 7. The passage 7 is designed as a through-hole.

[0169] The clamping sleeve 6 has an inner contour 30, which is formed by inner walls 31. The inner contour 30, that is, the position of the inner walls 31, depends on the Fig. Ferrule 29 shown in 6c, one in Fig. version 32 shown in 6c and a diameter of the inner sheath of the optical waveguide 3 not shown, and is determined by these.

[0170] The clamping sleeve 6 is provided with at least one defined (inner) stop surface via the inner walls 31 of the inner contour 30. A Fig. 2a shown outer contour 33 of the in Fig. In the clamping sleeve 4 shown in Figure 2a, the clamping system 1 is designed with a second stop surface. Preferably, the clamping sleeve 6 is also designed with a third stop surface. The stop surfaces are preferably designed as axial stops.

[0171] Fig. Figure 1 further shows additional features of the receiving sleeve 4 and the clamping sleeve 6 in their geometric alignment with each other.

[0172] The second axial stop of the clamping system 1 is designed with a third contact edge 34. The third contact edge 34 is designed as a partial area of ​​the end-face stop surface 22.

[0173] The clamping sleeve 6 is designed in a positive orientation 18 of the longitudinal direction 8 with a first contact edge 35 as an embodiment of a defined stop surface of the inner contour 30.

[0174] The first contact edge 35 is for the creation of an end-face outer edge, that is, an end-face outer surface, which is in Fig. Version 32, as shown in 1, is executed from the longitudinal direction 8 in a positive orientation 18. That is, the one shown in Fig. The version 32 shown in 1 is brought from the direction of the receiving section 26 of the clamping sleeve 6 to the contact at the first contact edge 35.

[0175] This means that the first mounting edge 35 is designed to receive partial areas of a preferably end-faced outer surface 36 of the Fig. Version 32 shown in 6c.

[0176] The receiving sleeve 4 has a second contact edge 37 on an outer wall, which, in the assembled state of the clamping system 1, lies within the clamping sleeve 6. The second contact edge 37 is preferably designed as a portion of the end-face stop surface 22. The second contact edge 37 forms the second axial stop for a second edge.

[0177] An axial distance 38 is formed in the longitudinal direction 8 between the first contact edge 35 and the second contact edge 37. This axial distance 38 is matched to a length 39 of the socket 32. The axial distance 38 is thus also matched to a length of the ferrule 29 such that a predetermined area of ​​the ferrule 29 projects outwards beyond the opening 7 of the clamping sleeve 6. The position of the ferrule 29 is determined by the first contact edge 35. The extension of the axial distance 38 in the longitudinal direction 8, together with its extension in the radial direction 9 and circumferential direction 15, defines a first receiving space 40 of the clamping system 1.

[0178] The first recording room 39 is 41 cm wide. Fig. 1 and the one in Fig. Version 32 shown in 6c is coordinated. A receiving area 42 of the clamping system 1 is formed in the clamping sleeve 6 over the area between the first contact edge 35 and the second contact edge 37. The receiving area 42 of the clamping sleeve 6 adjoins the first axial stop of the inner walls 31 of the inner contour 30, which adjoins the passage 28.

[0179] The receiving area 42 is designed to receive a component attached to the ferrule 29 of the optical waveguide 3, particularly in a form-fitting manner. The ferrule 29 has an outer diameter 44.

[0180] By means of the detachable connection 17 of the receiving sleeve 4 and the clamping sleeve 6, a section 43 of the optical fiber 3 received in the receiving area 41 of the clamping sleeve 6 can be clamped against a first sealing surface 45a surrounding the passage 28 as a part of the inner contour 30.

[0181] A second sealing surface 45b is preferably formed by an inner wall 31 of the clamping sleeve 6 extending in the longitudinal direction 8 and an outer surface of the socket 32, in particular the hexagonal area of ​​the socket 32, abutting this inner wall 31. Furthermore, a third sealing surface 45c is preferably achieved by contacting an end face of the socket 32, i.e., a surface of the ferrule 29 facing the ferrule 29 and axially oriented, against the first axial stop. This third sealing surface 45c is preferably formed by contacting the end face, i.e., the end-face outer surface 36, of the socket 32 ​​against the first axial stop and as a fine seal.

[0182] A retaining projection 47 is formed on an outer surface 46 of the clamping sleeve 6. The retaining projection 47 is designed as a circumferential ring collar. A in Fig. The defined manufacturing length 48 of a tip 49 of the optical fiber 3 in the longitudinal direction 8, as shown in Figure 1, is ensured by a reproducible position, i.e., a relative position, of the first axial stop for an end face of the socket 32 ​​to an outer axial stop 50 facing the receiving section 26 of the clamping sleeve 6. The outer axial stop 50 of the clamping sleeve 6 is designed as an outer surface 46 of the retaining projection 47 facing the receiving section 26 of the clamping sleeve 6.

[0183] A very tight concentricity tolerance is achieved through a very tight tolerance of the position, i.e., the relative position, of the outer diameter 51 of the clamping sleeve 6 to the through-hole 7 of the clamping sleeve 6. The outer diameter 51 of the clamping sleeve 6 is configured as a clamping range 52.

[0184] The clamping sleeve 6 has a clamping sleeve axis designed as a rotation axis 53. Centering of the clamping sleeve is achieved via the passage 7. Fig. 6e ferrule 29 shown. Alternatively, it is also conceivable that the centering of the diameter of the inner sheath of the optical waveguide 3 takes place.

[0185] The clamping sleeve 6 is essentially rotationally symmetrical about the axis of rotation 53 extending in the longitudinal direction 8. The axis of rotation 53 corresponds to a screw axis 54 when the releasable connection 17 is created, for example, by screwing the receiving sleeve 4 to the clamping sleeve 6. For this purpose, the receiving sleeve 4 is preferably provided with an external thread in the first partial region 20 of the end region 11.

[0186] The screw axis 54 is aligned with a Fig. The center axis 55 of the receiving sleeve 4 shown in 2a is aligned. This means that the screw axis 54 and the center axis 55 are coaxial with each other.

[0187] Passage 7 and that in Fig. The end through-hole 5 of the receiving sleeve 4, shown in Figure 1 and designed as a bore, is centered on the central axis 55 according to Figure 1. Fig. 2a. The passage 7 and the end-side through-hole 5 of the receiving sleeve 4 are arranged coaxially to each other.

[0188] Fig. Figure 3a shows a handling system 56 for rotary machining of a stripped end section 2 of an optical fiber 3 in a closed collet state 57.

[0189] The handling system 56 comprises a clamping system 1 as disclosed, for example according to Fig. 1 and an actuated clamping device 58. The actuated clamping device 58 rests against the outside, i.e., the outer surface 46, of the clamping sleeve 6 of the clamping system 1. The actuated clamping device 58 is clamped against a clamping receptacle 59 when the handling system 56 is actuated.

[0190] The actuated clamping device 58 is designed as an actuated, in particular spring-loaded, collet chuck 60. The clamping system 1 is within three in Fig. The clamping jaws 61 of the spring-loaded collet 60 are arranged as shown in Figure 3b. The collet 60 is arranged within the clamping receptacle 59.

[0191] The clamping device 59 is designed as a hollow shaft 62. The hollow shaft 62 is preferably part of a device located in the Fig. 7a and in the Fig. 7b shown direct-drive motor 63.

[0192] The hollow shaft 62 can also be designed as a hollow shaft insert of the directly driven motor 63. An inner contour of the hollow shaft 62 is designed such that the hollow shaft 62 can preferably accommodate the mechanical assembly of the handling system 56 completely, that is, entirely or substantially.

[0193] The hollow shaft 62 is provided with a cone 64, designed as a conical, slightly convex opening, in a region facing an end face, preferably an end face region, or in a region on the end face. The cone 64 is released during a (longitudinal) movement of the spring-loaded collet 60 in the positive orientation 18 of the longitudinal direction 8 or in a negative orientation 65 of the longitudinal direction 8.

[0194] A clamping piston 66 is designed to open and close the spring-loaded collet 60. Opening corresponds to a movement of the spring-loaded collet 60 in the positive orientation 18 of the longitudinal direction 8. Closing corresponds to a movement of the spring-loaded collet 60 in the negative orientation 65 of the longitudinal direction 8. The opening and closing of the spring-loaded collet 60 is for a transition from one to Fig. 3a and Fig. 3b shown (second) closed operating state 67 in the in Fig. 3c and Fig. 3d shown (first) open collet state 57 and vice versa required.

[0195] The slightly convex shape of the cone 64 is designed to reduce friction occurring between the spring-loaded collet 60 and the hollow shaft 62 and to prevent jamming of the spring-loaded collet 60.

[0196] An advantageous concentricity of the spring-loaded collet 60 is achieved and ensured by a very tight tolerance position of a collet guide 68 of the hollow shaft 62 and a clamping surface of the spring-loaded collet 60, which is preferably designed as a precision collet.

[0197] The clamping piston 66 is provided with a first through-bore 69. The spring-loaded collet 60 is provided with a second through-bore 70. The first through-bore 69 and the second through-bore 70 are coaxial with each other and oriented longitudinally.

[0198] The geometry of the through-holes 69, 70 is designed such that the optical fiber 2 guided in a clamping system 1 according to the disclosure can be received in the longitudinal direction 8 and guided through the handling system 65.

[0199] The spring-loaded collet 60 is designed with a precisely matched clamping diameter and / or a predefined internal contour. The spring-loaded collet 60 is configured to hold the clamping system 1.

[0200] Alternatively, the spring-loaded collet 60 can also be configured to hold a Fig. 6e Ferrule 29 shown to be clamped directly on an outer diameter.

[0201] Alternatively, the spring-loaded collet 60 can also be set up to clamp the optical fiber 3 directly to an inner sheath or to an outer sheath.

[0202] The spring-loaded collet 60 is designed such that, in the open collet state 57, i.e. in a clamped state of the spring-loaded collet 60, it preferably always springs back uniformly in the circumferential direction 15 and, as a result of this movement, releases a clamping system 1 to be clamped.

[0203] The clamping piston 66 is firmly screwed to the spring-loaded collet 60. The clamping piston 66 is equipped with a first anti-rotation device 71. The spring-loaded collet 60 is equipped with a second anti-rotation device 72. The two anti-rotation devices 71 and 72 are designed to ensure that a screw connection of the handling system 56 does not loosen during a rotational movement, i.e., during a movement in the circumferential direction 15.

[0204] To close the spring-loaded collet 60, a pneumatic short-stroke cylinder 73, for example, is extended. This means that the pneumatic short-stroke cylinder 73 is moved in the negative orientation 65 of the longitudinal direction 8, or moves in this direction. As the pneumatic short-stroke cylinder 73 extends, a clamping lever 74 pivots backward. This means that the clamping lever 74 moves in the negative orientation 65 of the longitudinal direction 8.

[0205] The clamping lever 74 is mounted via a pivot point 75. The pivot point 75 enables the rearward movement of the clamping lever 74. As a result of the rearward movement of the clamping lever 74, the clamping piston 66 is released. The reverse movement is in Fig. 3a shown schematically via an arrow.

[0206] After the clamping piston 66 is released, a tension spring 76 pushes the clamping piston 66 back, that is, together with the spring-loaded collet 60, to the rear. This means that the spring-loaded collet 60 moves in the negative orientation 65 of the longitudinal direction 8. The movement of the spring-loaded collet 60 draws the collet 60 into the hollow shaft 62.

[0207] By drawing the spring-loaded collet 60 into the hollow shaft 62, in particular into the cone 64 of the hollow shaft 62, the spring-loaded collet 60 contracts in the radial direction 9 in a positive orientation 77 towards the clamping system 1. The spring-loaded collet 60 contracts until it encloses the clamping system 1 to be clamped and positively locks it in place.

[0208] As a result of the fixation, a position-secure end-section processing, i.e., final shaping, of the optical fiber 3 arranged in the clamping system 1 is achievable. Reproducible and reliable positioning of the optical fiber 3 can be guaranteed.

[0209] The spring-loaded collet 60 is preferably conical and resilient due to internal stresses. It is conceivable that, according to the handling system 56, the optical fiber is clamped directly at its outer sheath by the spring-loaded collet 60. The closed collet state 67 is in Fig. 3b shown.

[0210] Fig. Figure 3b shows a clamping sleeve 6 of the clamping system 1 clamped in a handling system 56 for rotary machining in a top view, with the clamping jaws 61 closed. Three clamping jaws 61 coaxially encompass the clamping sleeve 6 of the clamping system 1.

[0211] Fig. Figure 3c shows a handling system 56 for rotary machining of a stripped end section 2 of an optical fiber 3 in an open collet state 57.

[0212] To open the spring-loaded collet 60, the pneumatic short-stroke cylinder 73 is retracted while a machining station is at a standstill. This means that the pneumatic short-stroke cylinder 73 is moved in the positive orientation 18 of the longitudinal direction 8. As the pneumatic short-stroke cylinder 73 retracts, the clamping lever 74 pivots forward. The pivoting movement of the clamping lever forward is in Fig. 3c shown schematically via an arrow.

[0213] This means that the clamping lever 74, which is mounted on the pivot point 75, moves in the positive orientation 18 of the longitudinal direction 8. As a result of the forward movement of the clamping lever 74, the clamping lever 74 presses against a rear side 78 of the clamping piston 66.

[0214] The tension spring 76 is compressed and pushes the tension piston 66 forward, that is, together with the spring-loaded collet 60. This means that the tension lever 74, mounted on the pivot point 75, moves together with the spring-loaded collet 60 in the positive orientation 18 of the longitudinal direction 8.

[0215] A section 79 of the movement of the clamping lever 74 is defined by the lever travel and, in particular, can be predetermined. As a result of the movement, the spring-loaded collet 60 extends from the hollow shaft 62. The spring-loaded collet 60, which is under its own tension, springs open via the cone 62 in a negative orientation of the radial direction 9, that is, in particular in the circumferential direction 15, and releases the clamping system 1.

[0216] The clamping jaws 61 are open.

[0217] Fig. Figure 3d shows the clamping sleeve 6 of the clamping system 1 in a handling system 56 for rotary machining in a top view, clamped in the open state of the clamping jaws 61.

[0218] Fig. Figure 4a shows a handling system 56 for the linear processing of a stripped end section 2 of an optical waveguide 3 in a closed system state 93 in a first embodiment.

[0219] The handling system 56 comprises a clamping system 1 as disclosed, for example according to Fig. 1 and an actuated clamping device 58 and a clamping receptacle 59. The actuated clamping device 58 is designed as an adjustable clamping element 81. The adjustable clamping element 81 is linearly adjustable, in particular from one side, that is, transversely to the longitudinal direction 8, or movable.

[0220] The adjustable clamping element 81 rests against the outer surface 46 of the clamping sleeve 6 of the clamping system 1. When the adjustable clamping element 81 is actuated, it presses the clamping system 1 into a receiving contour 82 of a receiving groove 83 in a linear clamping fixture 84, which is an embodiment of the clamping fixture 59. This pressing action is effected, in particular, by the adjustable clamping element 81 acting on the clamping sleeve 6 of the clamping system 1. The receiving groove extends in the longitudinal direction 8 across the linear clamping fixture 59.

[0221] The adjustable clamping element 81 covers the receiving groove 83, at least partially. That is, the adjustable clamping element 81 at least partially covers the receiving groove 83. The clamping system 1 is secured in position, i.e., fixed, by the adjustable clamping element 81 via the clamping sleeve 6. In other words, the receiving groove 83 is covered by the adjustable clamping element 81 to prevent the clamping sleeve 6, and thus the clamping system 1, from being removed.

[0222] The clamping sleeve 6 of the clamping system 1 rests flat against a first contour surface 85 of the receiving contour 82. The adjustable clamping element 81 is designed with a slide 86. The slide 86 has a second contour surface 87. Alternatively, the slide 86 could have a different clamping shape. When the slide 86 is actuated, the second contour surface 87 clamps the receiving groove 83.

[0223] Fig. Figure 4d shows that the receiving groove 83 is clamped between the first contour surface 85 of the receiving contour 82 and the second contour surface 85 of the slide 86. That is, the receiving groove 83, in particular an opening 88 of the receiving groove 83, is bounded or constricted by the first contour surface 85 and the second contour surface 87.

[0224] The limitation or narrowing occurs from the direction of the slide 81, that is, preferably from the radial direction 9. In other words, the Fig. 4d shown opening 88 of the receiving groove 83 closed or at least laterally, that is, in the radial direction 9, shortened.

[0225] The linear clamping device 84 has two or more, in Fig. 4a shows three receiving grooves 83, each designed to receive a clamping sleeve 6 of a clamping system 1.

[0226] The linear clamping fixture 84 can be designed with several adjacent clamping grooves 83. By designing the linear clamping fixture 84 with several clamping grooves 83, parallel processing of several optical fibers 3 is possible.

[0227] Alternatively, it is conceivable that the linear clamping device 84 could be used for the direct reception and fixing of at least one optical waveguide 3 / a plurality of optical waveguides 3 directly via the outer sheath or an inner sheath or the in Fig. Ferrule 29 as shown in 6c is executed.

[0228] For clamping a plurality of clamping sleeves 6 of the clamping systems 1, the handling system 56 is equipped with a single adjustable clamping element 81 as an embodiment of the actuated clamping device 58. Upon actuation, the adjustable clamping element 81 presses the plurality of clamping sleeves 6 of the clamping system 1 into a receiving contour 82 of a receiving groove 83. In this way, the plurality of receiving grooves 83 are covered against removal of the clamping sleeve 6 of the clamping system 1.

[0229] The linear clamping fixture 84, designed specifically as a receiving block, is configured for positioning the clamping system 1 with the inserted optical fiber 3. A reproducible position of the optical fiber 3 is ensured, firstly, by a very tight tolerance between the receiving groove 83, designed as a longitudinal groove, and the outer diameter 51 of the clamping sleeve 6 of the clamping system 1. Secondly, the reproducible position of the optical fiber 3 is ensured by the very tight tolerance of the outer axial stop 50 of the retaining projection 47 (see figure). Fig. 1) the clamping sleeve 6 of the clamping system 1 to the optical fiber 3 ensured.

[0230] The clamping system 1, together with the inserted optical fiber 3, is inserted into the receiving groove 83 of the linear clamping fixture 84. The clamping system 1 is abutted against an outer surface 89 of the linear clamping fixture 84 by the outer axial stop 50 of the retaining projection 47 of the clamping sleeve 6 of the clamping system 1 and positively locked in place by the slide 86.

[0231] The outer surface 89 of the linear clamping device 84 is arranged in a first plane 90. A normal of the first plane 90 extends in the longitudinal direction 8. The positive orientation of the normal corresponds to the positive orientation 18 of the longitudinal direction 8.

[0232] Fig. Figure 4b shows a handling system 56 for the linear processing of a stripped end section 2 of an optical waveguide 3 in a first embodiment in a first side view.

[0233] In an area shown as a section, the shape of the slide 86 and its position in the closed system state 80 are shown.

[0234] Fig. Figure 4c shows a handling system 56 for the linear processing of a stripped end section 2 of an optical waveguide 3 in a first embodiment in a second side view.

[0235] About the Fig. 4a and the Fig. Beyond 4b, a top view of the slide is shown.

[0236] Fig. Figure 4d shows a handling system 56, in section through the area of ​​the slide 86, for the linear processing of a stripped end section 2 of an optical fiber 3 in a closed system state 80 in a first embodiment.

[0237] The open system state 93 is set by opening the linear clamping device 84. To open the linear clamping device 84, the slide 86 is pressed against a compression spring 92 by means of a push piece 91 until a stop is reached. The stop is reached when the compression spring 92 has reached its minimum compression length. The push piece 91 is actuated, in particular, manually or pneumatically.

[0238] By bringing the linear clamping fixture 84 into position or by engaging the stop, the receiving groove 83 is formed. The receiving groove 83 is continuous. The clamping sleeve 6 of the clamping system 1 is inserted into the receiving groove 83 through the opening 88 in the end face of the linear clamping fixture 84. That is, the clamping sleeve 6 of the clamping system 1 is inserted from above.

[0239] Fig. Figure 4e shows a handling system 56, in section through the area of ​​the slide 86, for the linear processing of a stripped end section 2 of an optical fiber 3 in a closed system state 93.

[0240] The closed system state 80 is established by closing the linear clamping device 84. To close the linear clamping device 84, the pressure piece 91 is released. By releasing the pressure piece 91, the slide 86 moves, in particular slides, out of a position in Fig. Insertion position 94 shown in 4d into a machining position 95 of the Fig. 4e, that is, return to the starting position.

[0241] The reverse movement is primarily caused by the springback of the compression spring 92 following the release of pressure from the pressure piece 91. In the machining position 95, the clamping sleeve 6 of the clamping system 1 is clamped and fixed by the slide 86, particularly by positive locking.

[0242] A cylindrical surface area 96 of at least more than 75% of the total cylindrical surface, i.e., the outer surface 46, of the clamping sleeve 6 of the clamping system 1 is encompassed by the engagement area of ​​the slide 86 in the circumferential direction 15 by the slide 86. This means that at least more than 75% of the outer surface 46 of the clamping sleeve 6 is clamped in the machining position 95.

[0243] Fig. Figure 5a shows a handling system 56 for the linear processing of a stripped end section 2 of an optical waveguide 3 in a second embodiment in a side view.

[0244] In a second embodiment, the actuated clamping device 58 is designed as a plate 96 with at least one clamping element 97 designed as a quick-release screw. Two clamping elements 97 are shown. The plate 96 is configured for clamping with a linear clamping fixture 84.

[0245] The plate 96 is linearly adjustable, particularly from one side preferably in the radial direction 9 towards the clamping sleeve 6. The plate 96 is specifically designed as a pressure plate. The plate 96 is designed to bear against the outer surface 46 of the clamping sleeve 6 of the clamping system 1 and against an end face of the linear clamping receptacle 84. The bearing is in Fig. 5c shown in detail.

[0246] Fig. 5b shows a detailed view of a cross-sectional area of ​​region Vb from Fig. 5a for a handling system 56 for the linear processing of a stripped end section 2 of an optical waveguide 3 in a second embodiment.

[0247] The plate 96 has a surface, in particular a pressure section 98, on its underside, i.e., on the side facing the clamping sleeve 6. The clamping sleeve 6 of the clamping system 1 is recessed into the pressure section 98 to receive it. The pressure section 96 is made of elastically deformable material 99 for this purpose.

[0248] The elastically deformable material 99 is designed as a soft rubber pad. The pressure section 98 positively encloses the clamping sleeve 6 of the clamping system 1 when the plate 96 is pressed onto it by means of the Fig. 5a and in Fig. 5c clamping elements 97 onto the linear clamping device 84.

[0249] The pressure section 98 of the plate 96 is pressed onto a section of the clamping sleeve 6 of the clamping system 1, so that the clamping sleeve 6 is pressed against a groove base 100 in a receiving groove 83. The linear clamping receptacle 84 has chamfered edges in the area of ​​the opening 88 of the receiving groove 83 for easier insertion of the clamping receptacle 6. By fixing the position in this way, damage caused by pressure marks on the optical fiber 3 is particularly avoided.

[0250] Fig. Figure 5c shows a handling system 56 for the linear processing of a stripped end section 2 of an optical waveguide 3 in a second embodiment in a top view of the plate 96.

[0251] When the plate 96 is actuated, that is, when the plate 96 is clamped by means of the two clamping elements 97 shown, the plate 96 is pressed towards the surface of the end face of the linear clamping fixture 84. The plate 96 presses the clamping sleeve 6 of the clamping system 1 into a receiving contour 82 of the receiving groove 83 in the linear clamping fixture 84.

[0252] The clamping sleeve 6 with the inserted optical fiber 3 abuts the linear clamping fixture 84 via the outer axial stop 50 of the retaining projection 47 and can thus be positioned reproducibly in the linear clamping fixture 84.

[0253] The clamping sleeve 6 of the clamping system 1 is positioned in the receiving groove 83 as follows: The clamping sleeve 6 is clamped over the attached plate 96. The receiving groove 83 is covered to prevent removal of the clamping sleeve 6. In particular, the plate 96 completely covers the opening 88 of the receiving groove 83, which serves as the receiving opening.

[0254] Fig. Figure 6a shows a processing station 101 for the linear processing of a stripped end section 2 of an optical waveguide 3 in a first side view.

[0255] The processing station 101 is equipped in particular with a laser system 102, a handling system 56 and a receiving unit 103 with a clamping system 1. The handling system 56 is equipped with the clamping system 1 arranged in the receiving unit 103 and the optical fiber 3 arranged in the clamping system 1. The clamping system 1 is designed in particular to fix the optical fiber 3 detachably and in a watertight manner for the duration of processing.

[0256] Also shown are a machine table 104 and a mounting plate 105. The mounting plate 105 is part of the machining station 101, which is equipped with an NC-controlled axis system. The NC-controlled axis system is mounted directly on the machine table 104. The NC-controlled axis system is configured with an X-axis 106, a Fig. 6b shown Y-axis 107 and one in Fig. Z-axis 108 shown in 6b.

[0257] The laser system 102 is equipped with a processing head 109 and is designed as a waterjet laser system. Alternatively, the laser system 102 can also be configured as a conventional laser system using inert gas.

[0258] The optical waveguide 3 has a fiber center axis 110 in the longitudinal direction 8. The X-axis 106 is oriented in the longitudinal direction 8 of the optical waveguide 3. The Y-axis 107 is in Fig. 6b shown and oriented perpendicular to the longitudinal direction 8. The in Fig. The Z-axis 108 shown in 6b results in the third spatial dimension.

[0259] The optical waveguide 103 is arranged in a beam path of a water jet 111, which is preferably laminar, and a laser beam 112 guided within it. This means that the laser beam 112 is guided by the water jet, utilizing the principle of total internal reflection. The laser beam 112 is preferably pulsed. For conventional laser systems using inert gas, the position of the detached end section 2 is determined by a laser focal point.

[0260] The laser beam 112 is stationary. The receiving unit 103 is arranged to be displaceable in a defined manner relative to the laser beam 112, in relation to the optical waveguide 3. In particular, the receiving unit 103 is configured to rotate in a defined manner or to be displaceable longitudinally in a defined manner.

[0261] The laser system 102 is designed and configured to irradiate the stripped end section 2 of the optical fiber 3 with the laser beam 112 and to process it by defining the direction of the laser beam 112. In addition, a Fig. Connector 113 shown in 6c, in particular one in Fig. The unit shown in 6c is processed by ferrule 29 and optical waveguide 3.

[0262] In particular, an end surface 114 of the optical fiber 3 is processed. The processing station 101 enables a reproducible end-section processing process of the stripped end section 2 within a predetermined working area 115, thereby achieving a defined final shape for the stripped end section 2.

[0263] The linear machining of the end section 2, in particular the end surface 114, of the optical fiber 3 is carried out by means of a linear, stepwise machining movement 116, longitudinally in the X-direction 106 and transversely in the Y-direction 107 to the fiber center axis 110 of the optical fiber 3. The machining movement 116 is executed via the preferably NC axis system on the machine table 104 and / or on the machining head 109.

[0264] To collect contaminated water from the water jet 111, a collection funnel 117 with a drain 118 is provided on the receiving plate 105.

[0265] Fig. Figure 6b shows the processing station 101 for the linear processing of a stripped end section 2 of an optical waveguide 3 in a second side view.

[0266] A view of the machining station 101 in the direction of the Y-axis 107 and the Z-axis 108 is shown. The travel paths 119 are schematically shown by arrows in positive and negative orientations of the travel directions 119. The machining movements 116 are determined by the travel directions 119.

[0267] The in Fig. 6a corresponding to the X-axis 106, the Y-axis 107 and the Z-axis 108, the directions of travel 119 are possible in positive and negative orientations of an X-direction 120, a Y-direction 121 and a Z-direction 122 with respect to the machining station 101.

[0268] To process the end section 2, in particular the end surface 114, of the optical fiber 3, the linear clamping device 84 together with the optical fiber 3 is moved by the NC axis system of the processing station 101 in the X direction 120 and in the Y direction 121 along the stationary laser beam 112.

[0269] Fig. 6c, Fig. 6d and Fig. Figure 6e schematically shows the technical principle of delivering a material removal quantity 123 to the tip of the optical waveguide 3 and the ferrule 29, as well as the processing movement 116 for a processing station 101 for the linear processing of the end section 2 of an optical waveguide 3 by a laser beam 112.

[0270] Fig. Figure 6c shows a feed for the removal quantity 123 via the X-axis 106 for a processing station 101 for the linear processing of the end section 2 of an optical waveguide 3 by a laser beam 112.

[0271] The material removal quantity 123 is delivered via the X-axis 106 by a machining movement 116 along the fiber center axis 110. The machining movement 116 occurs in the X-direction 120 in both positive and negative orientations. The machining movement 116 in the direction of travel 119 of the X-axis 106, in both positive and negative orientations, is shown schematically by arrows.

[0272] Fig. Figure 6d shows a machining movement 116 over the Y-axis 107 for a Fig. 6a and Fig. 6b shown processing station 101 for linear processing of the end section 2 of an optical waveguide 3 by a laser beam 112.

[0273] The processing movement 116 is shown schematically by an arrow. The processing movement 116 is carried out transversely to the fiber center axis 110 of the optical waveguide 3.

[0274] Fig. Figure 6e shows a machining movement 116 over the Y-axis 107 as an enlarged section VIe from the Fig. 6d.

[0275] The processing movement 116 is shown schematically by an arrow. The Z-axis 108 on the processing head 109 is configured to set a height position of the fiber center axis 110 in the Z-direction 122. In this way, the positioning of the fiber center axis 110 of the optical waveguide 3 in a preferred working area of ​​the laser beam 112 can be achieved.

[0276] Alternatively, the linear clamping device 84 can be mounted on a mounting plate 105, which, as shown in Fig. As shown in 6b, it is mounted directly on the machine table 104. For this purpose, the [item] is shown in Fig. 6b shows the machining head 109 mounted on the NC-controlled axis system.

[0277] Via the NC-controlled axis system of the in Fig. At the processing station 101 shown in 6b, all processing movements 116 for the final section processing process, i.e., for the final shaping, are taken over.

[0278] The X-axis 106 also handles the feed for the material removal rate 123 along the fiber center axis 110. The Y-axis 107 also handles the machining movement 116 transversely to the fiber center axis 110. The Z-axis 108 according to Fig. 6b takes over on in Fig. 6b shown processing head 109 the height positioning on the fiber center axis 110 of the optical waveguide 3.

[0279] A combination of the machining movement 116 via the axis system on the machine table 104 and on the machining head 109 is also possible.

[0280] Fig. Figure 7a shows a processing station 101 for the rotary processing of a stripped end section 2 of an optical waveguide 3 in a first side view.

[0281] A processing station 101 is shown in the X direction 120 and in the Z direction 122.

[0282] The rotary machining of the end section 2, in particular the end surface 114, is carried out via a machining rotary axis 124, a swivel axis 125, and linear axes 126. The machining rotary axis 124 is driven by a rotary unit 127 (A-axis). The swivel axis 125 is driven by a swivel unit 127 (A-axis). This means that the rotary machining of the end section 2, in particular the end surface 114, is carried out via a simultaneous machining movement 116 by the linear axes 126 on the machine table 104, a rotary unit 127 (A-axis), and a swivel unit 128 (B-axis).

[0283] Alternatively, the combination of the processing rotation axis 124 with swivel movement and linear movement on the processing head 109 of the laser beam 112 for shaping, for example facets or lens shape, on the end section 2, in particular the end surface 114, of the optical waveguide 3 is conceivable.

[0284] The rotation unit 127 (A-axis) according to Fig. 7b is connected to the swivel unit 128 (B-axis) via a pivot point 129. The rotation unit 127 (A-axis) is equipped with a directly driven NC-controlled rotary motor 130 and with a hollow shaft 62 for receiving a handling system 56 as disclosed.

[0285] The swivel unit 128 (B-axis) consists of a bearing block 131. Via the pivot point 129 of the swivel unit 128, the rotation unit 127 (A-axis) can be swivelled in positive and negative orientation of the Z-direction 122, i.e. upwards and downwards, by means of the NC-controlled rotary motor 130.

[0286] The rotary unit 127 and the swivel unit 128 are mounted on a mounting plate 105, which is part of the NC-controlled axis system. The axis system consists of the X-axis 106 and the in Fig. The Y-axis 107 shown in Figure 7b is mounted on the machine table 104. To collect the contaminated water jet 111, the collection funnel 117 with the drain 118 is attached below the working area.

[0287] Alternatively, it is conceivable that the NC-controlled X-axis 106, which is in Fig. Figure 6b shows an NC-controlled Y-axis 107 and an NC-controlled C-axis 132 mounted on a machining head 109. A combination of different axes on the machine table 104 and on the machining head 109 is also conceivable.

[0288] Fig. Figure 7b shows a processing station 101 for the rotary processing of a stripped end section 2 of an optical waveguide 3 in a second side view.

[0289] The side view shows the processing station 101 in the Y direction 121 and in the Z direction 122. About Fig. Beyond 7b, the position of the rotation unit 127 (A-axis) is shown in detail.

[0290] Fig. Figure 7c schematically shows the technical principle of final shaping by a processing station 101 for the rotary processing of a sheathed end section 2 of an optical waveguide 3.

[0291] The processing movements 116 are shown schematically using directional arrows and their orientation. The descriptions of the Fig. 7a and the Fig. Section 7b is used to explain the technical principle.

[0292] For processing the end section 2, in particular the end surface 114, of the optical fiber 3, the optical fiber 3 is rotated centrally by the rotation unit 127 (A-axis) and simultaneously or stepwise pivoted upwards or downwards in the positive and negative orientation of the Z-direction 122 via the pivot unit 128 (B-axis), which is not shown. A first pivoting movement 133 is performed. Fig. Figure 7c schematically illustrates the pivoting movement 133 using an arrow.

[0293] Simultaneously with this machining movement 116, a feed movement 134 is performed with the X-axis 106 in the direction of the fiber center axis 110 for material removal.

[0294] The pivoting movement 116 causes a displacement of the position of the stripped end section 2 in a negative orientation of the X and Z directions. The position of the laser beam 112, or the laser focal point (focus) relative to the fiber center axis 110 in a fiber center, can be compensated for by a tracking movement 135 on the processing head 109 with the X-axis 106 and the Z-axis 108 to compensate for the displacement resulting from the pivoting movement 116.

[0295] The Z-axis 108 must be adjusted when the end section 2, in particular the end surface 114, of the optical waveguide 3 pivots out of the working area 115 of the laser beam 112. This is predominantly the case with the conventional laser method.

[0296] The processing movements 116, that is, at least the first pivoting movement 133, the feed movement 134, and the tracking movement 135, occur simultaneously. This results in the technical advantage that freely programmable homogeneous, convex lens shapes 136 can be produced via an end shaping on the end section 2, in particular the end surface 114, of the optical waveguide 3. A homogeneous, convex lens shape 136 is in Fig. 8a shown.

[0297] Alternatively, radial, stepped lens shapes 137 or faceted lens shapes 138 can be produced, for example. A radial, stepped lens shape 137 is in Fig. 8b is shown. A faceted lens shape 138 is in Fig. 8c is shown.

[0298] At the in Fig. The radial, stepped lens shape 137 shown in 8b is a Fig. 7d and Fig. The angle of inclination 139 of the laser beam 112 to the end section 2, in particular the end surface 114, of the optical waveguide 3, as shown in Figure 7e, is set by the swivel unit 128 (B-axis). The ablation rate 123 is set by the X-axis 106. The Fig. 7a and Fig. The processing head 109 shown in 7b is positioned laterally (outside) the end section 2, in particular the end surface 114, of the optical fiber 3.

[0299] The subsequent material removal will occur while the [engine] is at a standstill. Fig. The swivel axis 125 shown in 7a with rotating machining rotation axis 124 is carried out by moving the machining head 109 by means of the Y-axis 107 transversely to the fiber center axis 110.

[0300] By repeating the step while adjusting the angle of incidence 139 of the laser beam 112 by the swivel unit 128 (B-axis) and the ablation quantity 123 by the X-axis 106, a radial, stepped lens shape 137 on the end section 2, in particular the end surface 114, of the optical waveguide 3 can be manufactured.

[0301] In the case of the faceted lens shape 138, that is, a faceted shape, the angle of incidence 139 of the laser beam 112 to the end section 2, in particular the end surface 114, of the optical waveguide 3 is set by the swivel unit 128 (B-axis). The ablation rate 123 is set by the X-axis 106.

[0302] The in Fig. 7a and Fig. The processing head 109 shown in Figure 7b is positioned laterally (outside) the end section 2, in particular the end surface 114, of the optical fiber 3. The removal of the material quantity 123 is therefore carried out with the rotation unit 127 (A-axis) and the swivel unit 128 (B-axis) at rest by a method described in Figure 7b. Fig. 7a and Fig. 7b shown processing head 109, by means of which in Fig. The Y-axis 107 shown in 7f is executed transversely to the fiber center axis 110.

[0303] The optical waveguide 3 is then rotated further by one segment using the rotation unit 127 (A-axis). The in Fig. 7a and Fig. As shown in Figure 7b, the processing head 109 is at this moment positioned laterally (outside) of the end section 2, in particular the end surface 114, of the optical waveguide 3.

[0304] The next step involves repeating the material removal process as described above. This process is repeated until the desired facet shape is achieved, for example, according to... Fig. 10a, Fig. 10b or Fig. 10c, on the end section 2, in particular the entire end surface 114, of the optical waveguide 3.

[0305] The shapes described are only examples of a multitude of convex shapes, as well as combinations of shapes, that can be produced.

[0306] The changes in the angle of attack 139 as a result of the described axis movements of the in Fig. 7a and Fig. The processing station 101 shown in Figure 7b for the rotary processing of a stripped end section 2 of an optical fiber 3 is in Fig. 7d and in Fig. 7e, shown as excerpt VIId and VIIe.

[0307] Fig. Figure 7d shows a schematic detail of the angle of incidence 139 of the laser beam 112 to the end section 2, in particular to the end surface 114, of an optical waveguide 3 as section VIId from Fig. 7c.

[0308] The angle of incidence 139 is zero degrees. The laser beam 112 is at an angle of 90 degrees to the fiber center axis 110 of the optical waveguide 3. The end section 2, in particular the end surface 114, is in a cut-off or fractured state. Final shaping has not yet taken place.

[0309] Fig. Figure 7e shows a schematic detail of the angle of incidence 139 of the laser beam 112 to the end section 2, in particular to the end surface 114, of an optical waveguide 3 as section VIIe from Fig. 7c.

[0310] The laser beam 112 is angled relative to the end section 2, in particular the end surface 114. A lens is designed with a homogeneous, convex lens shape 136.

[0311] Fig. 7f schematically shows the technical principle of final forming in a Fig. 7a and Fig. 7b shown processing station 101 for the rotary processing of a stripped end section 2 of an optical waveguide 3 by means of the movement of a C-axis 132.

[0312] The processing movements 116 are shown schematically using directional arrows and their orientation.

[0313] To produce the in Fig. 10b radial, stepped lens shapes 137 and the one in Fig. The faceted lens shapes shown in 10c 138 are alternatively the change of the angle of attack 139 to Fig. 7c shown by changing the angle of the machining head 109 relative to the Z-direction 122, that is, relative to a normal to the one in Fig. 7a and Fig. 7b shows the machine table 104. The machining head 109 performs a swiveling movement 140 via the C-axis 132.

[0314] A final shaping in the Fig. 10a, Fig. 10b and Fig. The circumferential direction 15 shown in 10c can be produced by rotating the rotation unit 127 (A-axis).

[0315] With the C-axis stationary at 132, the in Fig. The radial, stepped lens shape 137 shown in Figure 10a can be manufactured or produced using a rotating unit 127 (A-axis). To generate nine radial steps, the X-axis 106 must be moved in the direction of the laser beam 112.

[0316] As a result of the change in angle of the in Fig. 7a and Fig. 7b of the processing head 109, a change in the angle of attack 139 relative to the end section 2, in particular the end surface 114, of the optical waveguide 3 is achieved.

[0317] Fig. Figure 7g shows a schematic detail of the angle of incidence 139 of the laser beam 112 to the end section 2, in particular to the end surface 114, of an optical waveguide 3 as a section VIIg from Fig. 7f.

[0318] The laser beam 112 is angled relative to the end section 2, in particular the end surface 114. The homogeneous, convex lens shape 136 shown is achieved as a result of the end shaping using a laser beam 112. The change in the angle of incidence 139 relative to the fiber central axis 110 of the optical waveguide 3 was achieved by changing the angle at the Fig. 7a and Fig. 7b brought about the processing head 109 shown.

[0319] Fig. Figure 8a shows a fixing of a second end 141 of a short optical waveguide 3 for a in Fig. 7a and Fig. 7b shows processing station 101 for rotary processing.

[0320] One end of the optical waveguide 3 is formed with the end surface 114 and is processed via the end shaping. The second end 141 limits the optical waveguide 3 in the longitudinal direction 8 in the opposite direction.

[0321] Optical fibers 3 of short length are stretched and stored in a fixed tube 142 to fix the second end 141. The fixed tube 142 is directly adjacent to the machining rotation axis 124 at a first tube end 143.

[0322] The first tube end 143 is attached directly to the machining rotation axis 124 via a flange 144, i.e., flanged to it, and is rotated with the machining rotation axis 124. To prevent damage to the optical fiber 3 caused by torsional moments and centrifugal forces, the second end 141 of the optical fiber 3 is fixed in a center 145 of the second tube end 146, which faces away from the flange 144.

[0323] Fig. Figure 8b shows a fixing of a second end 141 of long optical waveguides 3 for a processing station 101 for rotary processing.

[0324] A flexible tube 148 is located between the rotary unit 147 and the machining rotation axis 124. The flexible tube 148 is attached to the rotary unit 147 via a flange 144 with a second flexible tube end 149, i.e., flanged on.

[0325] The fastening of the first flexible pipe end corresponds to that described in Fig. 8a shown fastening of the first pipe end 143.

[0326] In the rotary unit 147, the area on the rotary unit side, which is opposite the second end 141 of the optical fiber 3, i.e. the free length 150, of the optical fiber 3 is guided in order to protect the optical fiber 3 in this area from centrifugal forces and to compensate for the movement when pivoting the machining rotation axis 124.

[0327] To avoid damage to the short optical waveguide 3 caused by torsional moments and centrifugal forces, the second end 141 of the optical waveguide 3 is fixed in a center 145 of the rotating unit 147.

[0328] Fig. Figure 9 shows a flowchart of a process 151 for shaping the stripped end section 2 of an optical waveguide 3. For an explanation of the process, reference is made to the structural elements and reference symbols of the previous figures of the present disclosure.

[0329] Procedure 151 has a first step (S1) 152, a second step (S2) 154 and a third step (S3) 154. These are: (S1) Providing a cut-to-length optical waveguide 3, sheathed near the end section, in particular near the end face 114, (S2) Providing a water-jet-guided laser beam 112 directed towards the end face 114 of a fiber core 155 of the optical waveguide 3, (S3) Guiding the water-jet-guided laser beam 112 and the optical waveguide 3 relative to each other in space such that the laser beam 112 forms a [missing information] at the end face 114 of the fiber core 155. Fig. 10a, Fig. 10b and Fig. The defined end surface contour 156 shown in 10c is generated.

[0330] In the second step (S2), the optical fiber 3 is clamped in a clamping system 1 according to the disclosure, in particular in a handling system 56 according to the disclosure.

[0331] In the third step (S3), the shaping of the end surface 114 is carried out in a processing station 101 as disclosed.

[0332] Fig. Figure 10a shows a homogeneous, convex lens shape 136 of the end surface 114 of a final-shaped optical waveguide 3 according to the disclosure.

[0333] The homogeneous, convex lens shape 136 of the end face 114 of an optical waveguide represents an end contour 156 of the fiber core 155. The end contour 156 was determined in particular using a Fig. 1 shown in the disclosure, in particular using a clamping system 1 shown in Fig. 3a and Fig. 3c shown handling system 56 in a disclosure in Fig. 7a and Fig. The homogeneous, convex lens shape 136 was produced by a processing station 101 shown in 7b. Fig. 7g shown water jet-guided laser beam 112 produced

[0334] Fig. Figure 10b shows a radial, stepped lens shape 137 of the end surface 114 of a disclosing end-shaped optical waveguide 3.

[0335] The radial, stepped lens shape 137 is designed over three circular segments that extend outwards from a center in the radial direction 9.

[0336] Fig. Figure 10c shows a faceted lens shape 138 of the end surface 114 of a disclosed end-shaped optical waveguide 3.

[0337] The faceted lens shape 138 is designed with circumferentially arranged facets on a circular segment. In the radial direction 9, three circular segments extend over the diameter of the fiber core 155 of the optical waveguide 3. Reference symbol list 1 clamping system (removable, manageable unit) 2. Sheathed end section (of the optical fiber) 3 optical fibers 4 Mounting sleeve 5 End-side through hole (of the receiving sleeve) / bore 6 clamping sleeve 7 Through hole (of the clamping sleeve) / Through hole 8 Longitudinal direction / first direction 9 radial direction / second direction 10 (lateral) receiving opening (of the receiving sleeve) 11 End area (of the receiving sleeve) 12. Extension (of the end area 11) 13 Length (of the receiving opening) 14 Width (of the receiving opening) 15 Circumferential direction / third direction 16 Internal cavity volume 17 detachable connections 18 positive orientation (of the longitudinal direction) 19 proximal section 20 first sub-area 21 second sub-area 22 Frontal stop surface (of the receiving sleeve) 23 second diameter (of the receiving sleeve) 24 first diameter (of the receiving sleeve) 25 Depth (of the intake opening) 26 Recording section 27 Tension sleeve end section 28 passage length 29 Ferrule 30 Inner contour 31 Inner wall Version 32 33 Outer contour (of the receiving sleeve) 34 third attachment edge 35 first attachment edge 36 Front outer surface (of the socket) 37 second attachment edge 38 Axial distance (between the mounting edges) 39 Length (of the version) 40 Recording Room 41 maximum width (of the socket) 42 Recording area 43 Area of ​​the optical fiber adjacent to a ferrule 44 Outer diameter (of the ferrule) 45a first sealing surface 45b second sealing surface 45c third sealing surface 46 Outside (of the clamping sleeve) 47 Holding advantage 48 manufacturing length 49 Tip (of the optical fiber) 50 Outer axial stop (outer surface of the retaining projection facing the receiving section of the clamping sleeve) 51 Outer diameter (of the clamping sleeve) 52 clamping range 53 Rotation axis (of the clamping sleeve) 54 Screw axis (of the clamping system) 55 Center axis (of the mounting sleeve) 56 Handling system 57 First collet state / open collet state 58 clamping devices 59 Clamping device (of the handling system) 60 spring-loaded collets 61 clamping jaws 62 Hollow shaft 63 directly driven motor 64 Cone / cone-shaped, slightly convex opening 65 negative orientation (of the longitudinal direction) 66 clamping pistons 67 Second collet state / closed collet state 68 Pliers guide 69 first through bore 70 second through hole 71 first anti-rotation device 72 second anti-rotation device 73 pneumatic short-stroke cylinders 74 clamping levers 75 pivot point 76 Tension spring 77 positive orientation (of the radial direction) 78 Back side (of the clamping piston) 79 Distance (lever travel of the tensioning lever) 80 Closed system state (of the handling system) 81 adjustable clamping part 82 Recording contour 83 recordings 84 Linear clamping device 85 first contour surface (of the recording contour) 86 sliders 87 second contour surface (of the slider) 88 Opening (of the recording slot) 89 Front 90 first level 91 Printed piece 92 Compression spring 93 Open system state (of the handling system) 94 Insertion position (of the slider) 95 Machining position (of the slide) 96 record 97 Clamping element 98 Print section 99 elastically deformable material 100 Groove base 101 processing station 102 Laser system 103 Recording unit 104 Machine table 105 Mounting plate 106 X-axis 107 Y-axis 108 Z-axis 109 Processing head 110 Fiber central axis 111 Water jet 112 Laser beam 113 connectors 114 End area 115 work area 116 Processing movement 117 collecting funnels 118 Expiry 119 Direction of travel 120 X-direction 121 Y-direction 122 Z-direction 123 Removal quantity 124 Machining rotation axis 125 swivel axis 126 Linear axis 127 units of rotation (A-axis) 128 Swivel unit (B-axis) 129 Pivot point 130 NC-controlled rotary motor 131 Bearing block 132 C-axis 133 first pivoting movement 134 Delivery movement 135 Tracking movement 136 homogeneous, convex lens shape 137 radial, stepped lens shape 138 facet-like lens shape 139 Angle of incidence (of the laser beam through the C-axis) 140 second swivel movement 141 second end (of the optical fiber) 142 fixed pipe 143 first pipe end 144 Flange 145 Center 146 second pipe end 147 Rotary unit 148 flexible pipe 149 second flexible pipe end 150 Free length 151 procedures 152 first procedural step (S1) 153 second procedural step (S2) 154 third procedural step (S3) 155 fiber core 156 End contour QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] US 9,810,847 B1 [0015, 0016] US 9,089,931 B1 [0015, 0016] EP 0 391 598 B1

[0015] WO 2016 / 077655 A1 [0015, 0016] EP 0 391 598

[0016] US 5,772,720 A

[0017]

Claims

[1] Clamping system (1) for receiving a stripped end section (2) of an optical fiber (3), the clamping system (1) comprising: a receiving sleeve (4) with an end-end through-hole (5) dimensioned such that the stripped end section (2) of the optical fiber (3) can pass through it in an inserted state, and a clamping sleeve (6) which receives the receiving sleeve (4) at least partially, the clamping sleeve (6) being detachably attached to the receiving sleeve (4), the clamping sleeve (6) having a passage (7) aligned with the end-end through-hole (5) of the receiving sleeve (4), the receiving sleeve (4) extending substantially in its longitudinal direction (8) and having a lateral receiving opening (10), the receiving opening (10) of the receiving sleeve (4) being arranged and configured to insert the optical fiber (3) laterally into the receiving sleeve (4) by inserting or pivoting it in.and wherein the clamping sleeve (6) covers the receiving opening (10) of the receiving sleeve (4) at least near an end region (11) of the receiving sleeve (4). [2] Clamping system (1) according to claim 1, wherein the receiving opening (10) of the receiving sleeve (4) is designed as a lateral slot, wherein the slot extends over the entire length (13) of the receiving sleeve (4), and wherein the width (14) of the slot in a circumferential direction (15) of the receiving sleeve (4) is designed such that the optical fiber (3) can be inserted through the slot into the interior of the receiving sleeve (4), in particular parallel to the longitudinal direction (8). [3] Clamping system (1) according to one of claims 1 or 2, wherein the slot is designed straight and extends in the longitudinal direction (8) of the receiving sleeve (4), wherein the clamping sleeve (6) covers the slot of the receiving sleeve (4) along the entire extent (12) of the end region (11). [4] Clamping system (1) according to one of claims 1 to 3, wherein a detachable connection (17) is formed between the receiving sleeve (4) and the clamping sleeve (6) such that the receiving sleeve (4) and the clamping sleeve (6) form a detachable, manageable unit. [5] Clamping system (1) according to one of claims 1 to 4, wherein the clamping sleeve (6) forms a receiving area (42) on an inner wall (31) adjacent to the aligned passage (7), which is designed to receive an area (43) of the optical fiber (3) adjacent to a ferrule (29) of the optical fiber (3), in particular in a form-fitting manner. [6] Clamping system (1) according to any one of claims 1 to 5, in particular according to claim 5, wherein the clamping sleeve (6) has a first contact edge (35) on its inner side, wherein the first contact edge (35) forms a first axial stop for a first edge, in particular for an edge of a socket (32), of the optical fiber (3) received in the receiving sleeve (4), wherein the receiving sleeve (4) has a second contact edge (37) on its inner wall (31), which forms a second axial stop for a second edge, in particular for the socket (32) of the optical fiber (3), wherein an axial distance (38) between the first contact edge (35) and the second contact edge (37) is matched to a length of the socket (32), such that a region between the two contact edges (35, 37), in particular a receiving space (40) between the two contact edges (35, 37), is matched to a width (41) of the socket (32) is agreed, in particular in such a way,that the area between the two mounting edges (35, 37) forms the receiving area (42) according to claim 5. [7] Clamping system (1) according to claim 4 and one of claims (5 or 6), wherein by tightening the releasable connection (17) the section of the optical fiber (3) received in the receiving area (42) of the clamping sleeve (6) can be clamped against a first sealing surface (45a) surrounding the end through hole (5). [8] Clamping system (1) according to one of claims 1 to 7, wherein a diameter of the passage (7) of the clamping sleeve (6) is matched to an outer diameter (44) of the ferrule (29) such that the ferrule (29) passes through the passage (7) with reduced air, in particular forming a shear fit. [9] Clamping system (1) according to one of claims 1 to 8, wherein a retaining projection (47), in particular a circumferential ring collar, is formed on an outer side (46) of the clamping sleeve (6). [10] Clamping system (1) according to one of claims 1 to 9, wherein the clamping sleeve (6) is essentially rotationally symmetrical about its axis of rotation (53) and, wherein the receiving sleeve (4) has a central axis (55), wherein a screw axis (54) and the central axis (55) are aligned with each other, wherein the passage (7) of the clamping sleeve (6) and the end-side through-hole (5) of the receiving sleeve (4) are formed centrally to the central axis (55). [11] Handling system (56) for processing a stripped end section (2) of an optical fiber (3), comprising a clamping system (1) according to one of claims 1 to 10 and further an actuable clamping means (58), wherein the actuable clamping means (58) rests against the outside (46) of the clamping sleeve (6) of the clamping system (1) and wherein, when actuated, the actuated clamping means (58) clamps the clamping system (1) against a clamping receptacle (59). [12] Handling system (56) according to claim 11 for, in particular, rotary handling Machining of the stripped end section (2) of the optical fiber (3), wherein the clamping device (58) is designed as an actuable, in particular spring-loaded, collet chuck (60), wherein the clamping system (1) is arranged within clamping jaws (61) of the collet chuck (60) surrounded by the clamping jaws of the collet chuck, wherein when the collet (60) is actuated the collet jaws (61) bear substantially radially against the outside (46) of the collet sleeve (6) and in particular bear against a retaining projection (47) on the outside (46) of the collet sleeve (6), which in particular is designed as a circumferential annular collar, wherein the collet (60) is arranged within a collet holder (59) designed as a hollow shaft (62), and wherein the hollow shaft (62) is in particular part of a directly driven motor (63). [13] Handling system (56) according to claim 11 for the particularly linear processing of the stripped end section (2) of the optical fiber (3), wherein the clamping means (58) is designed as a clamping element (81) that is linearly adjustable, in particular radially from one side to the clamping sleeve (6), wherein the clamping element (81) rests against the outside (46) of the clamping sleeve (6) of the clamping system (1) and wherein, when the clamping element (81) is actuated, it presses the clamping sleeve (6) into a receiving contour (82) of a receiving groove (83) in the clamping receptacle (59) and covers the receiving groove (83) against removal of the clamping sleeve (6). [14] Handling system (56) according to claim 13, wherein the adjustable clamping element (81) is designed as a plate (96), wherein the clamping receptacle (59) has a surface into which the clamping sleeve (6) can be recessed and received, wherein when the plate (96) is actuated, it is pressed in the direction of the surface such that a pressure section (98) of the plate (96) presses against an outer surface (46) of the clamping sleeve (6), so that the clamping sleeve (6) is pressed in the receiving groove (83) against a groove base (100), wherein, in particular, an elastically deformable material (99) is arranged in the area of ​​the pressure section (98). [The plate, in particular, completely covers the receiving opening of the receiving groove.] [15] Handling system (56) according to claim 13, wherein the adjustable clamping element (81) is designed as a slide (86), wherein the clamping sleeve (6) bears flat against a first contour surface (85) of the receiving groove (83), wherein when the slide (86) is actuated a second contour surface (87) of the slide (86) clamps the receiving groove (83) between the first contour surface (85) and the second contour surface (87) such that the opening (88) of the receiving groove (83) is closed or laterally shortened. [16] Handling system (56) according to one of claims 14 or 15, wherein the clamping receptacle (59) has two or more receiving grooves (83) each designed to receive a clamping sleeve (6), wherein a single adjustable clamping element (81) is provided, the actuation of which presses the respective clamping sleeve (6) into the respective receiving contour (82) and covers the receiving groove (83) against removal of the clamping sleeve (6). [17] Processing station (101) for shaping the stripped end section (2) of the optical fiber (3), wherein the processing station (101) comprises: a laser system (102) which is designed and configured to irradiate the stripped end section (2) with a laser beam (112), a receiving unit (103) for the optical fiber (3), wherein the receiving unit (103) receives the optical fiber (3) near the stripped end section (2), wherein the receiving unit (103) has a two-part clamping system (1) designed in particular according to one of claims 1 to 10, wherein the two-part clamping system (1) releasably fixes and watertightly receives the optical fiber (3) for the duration of the processing, wherein the clamping system (1) is arranged in a handling system (56) designed in particular according to one of claims 11 to 16. [18] Processing station (101) according to claim 17, wherein the laser system (102) provides a fluid-guided, in particular a water-jet-guided laser beam (112), wherein the laser beam (112) is fixed in position and the receiving unit (103) for the optical waveguide (3) is arranged in a defined manner displaceable with respect to the laser beam (112), in particular in a defined manner rotating or in a defined manner longitudinally displaceable. [19] Method (151) for shaping a stripped end section (2) of an optical waveguide (3), comprising at least the steps: (S1) 152: Providing a cut-to-length optical waveguide (3) with a stripped end section (2), and (S2) 153: Providing a water-jet guided laser beam (112) directed at the end section (2) of the optical waveguide (3), and (S3) 154: Guiding the water-jet guided laser beam (112) and the optical waveguide (3) relative to each other in space such that the laser beam (112) produces a defined end contour (156) on the stripped end section (2) of the optical waveguide (3). [20] Method (151) according to claim 19, wherein in step (S1) 152 the optical fiber (3) is clamped in a clamping system (1) according to one of claims 1 to 10, in particular in a handling system (56) according to one of claims 11 to 16, and wherein in step S3 the shaping of the end section (2) is carried out in a processing station (101) according to claim 17 or 18. [21] Optical waveguide (3) comprising a fiber core (155) designed as a light-conducting medium, wherein the fiber core (155) has a defined end contour (156), and wherein the end contour (156) of the fiber core (155) was produced by a fluid-guided, in particular a water-jet-guided, laser beam (112). [22] Optical waveguide (3) according to claim 21, wherein the end contour (156) of the fiber core (155) was produced, in particular using a clamping system (11) according to one of claims 1 to 10, in particular using a handling system (56) according to one of claims 11 to 16, in a processing station (101) according to one of claims 17 and 18, in particular using a method (151) according to one of claims 19 and 20.

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