CN217230563U - Fusion splicing device for optical fiber perform and sleeve - Google Patents

Abstract

The utility model relates to a fusion splicing device of an optical fiber preform rod and a sleeve, which comprises a fixed component, a sliding part, a blowtorch and a correction component, wherein the fixed component comprises two fixed ends which are arranged oppositely, the two fixed ends are respectively used for fixing two glass rods and enabling the two glass rods to be coaxially and in butt joint, the two fixed ends can be synchronously arranged in a rotating way, the sliding part can be connected with the fixed component in a sliding way along the length direction of the two glass rods, the blowtorch is fixedly arranged on the sliding part and is used for heating the butt joint part of the two glass rods, the correction component comprises a bearing part which is fixedly arranged on the sliding part, and the top of the bearing part is abutted against the two glass rods; the problem of prior art when the butt fusion optical fiber perform, make optical fiber perform produce the bending easily under flame high temperature and self action of gravity, influence optical fiber perform finished product quality is solved.

Description

Fusion splicing device for optical fiber perform and sleeve

Technical Field

The utility model relates to a glass technical field especially relates to an optical fiber perform and sheathed tube butt fusion device.

Background

There are various methods for fabricating an optical fiber preform, and a common fabrication process is a vapor deposition method in which high-purity metal halide vapor reacts with oxygen to form oxide particles, which are deposited on the surface of a glass or quartz body (or the inner wall of a tubular body), and then sintered to form a transparent glass rod.

The existing optical fiber perform is usually manufactured by an MCVD lathe, and in the process of manufacturing the optical fiber perform by the MCVD lathe, a head pipe, a base pipe and a tail pipe with different specifications need to be welded together, and then chemical vapor deposition is carried out under the action of oxyhydrogen flame; for example, chinese patent application No. CN202110925413.0 discloses a fusion splicing apparatus for optical fiber preform, which includes a base; the blowtorch holder is arranged on the base, and a blowtorch is fixed on the blowtorch holder; the two moving seats are arranged on the base and are respectively positioned at two sides of the spray lamp holder, each moving seat is provided with a chuck, the two chucks are coaxially arranged, the two moving seats are respectively a first moving seat and a second moving seat, and the first moving seat is arranged on the base in a sliding manner; the first driving mechanism is used for driving the first movable seat to reciprocate; welding cooling accredited testing organization for cool off the splice, and be used for testing whether the welding is qualified, above-mentioned prior art has improvement cooling efficiency, detects the whether qualified effect of welding, in order to avoid unqualified product to get into the wire drawing process, causes economic loss, but prefabricated stick when the welding, because under high temperature and self action of gravity, causes slight bending easily, also can form unqualified optical fiber perform finished product.

Above-mentioned optical fiber perform's among the prior art butt fusion equipment when having butt fusion optical fiber perform, make optical fiber perform produce the bending easily under flame high temperature and self action of gravity, influence the defect of optical fiber perform finished product quality easily.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need to provide a fusion splicing apparatus for an optical fiber preform and a sleeve, which is used to solve the problem that the quality of the optical fiber preform is affected by the bending of the optical fiber preform under the action of the high temperature of flame and the self gravity when the optical fiber preform is fused in the prior art.

The utility model provides an optical fiber perform and sheathed tube butt fusion device is including fixed subassembly, slider, blowtorch and correction subassembly, fixed subassembly is including two stiff ends of relative setting, two the stiff end is used for two fixed glass sticks respectively and makes two coaxial and butt joint settings of glass stick, two but stiff end synchronous rotation sets up, the slider can follow two glass sticks the length direction with fixed subassembly sliding connection, the blowtorch is fixed to be located on the slider for butt joint department heating to two glass sticks, the correction subassembly is including bearing portion, bearing portion is fixed to be located on the slider, the top and two glass stick butts of bearing portion.

Further, the correction assembly further comprises a guide rod and a sleeve, the bearing portion is fixedly connected with the upper end of the guide rod, the guide rod is arranged in the sleeve in a sliding mode in the extending direction of the sleeve, the sleeve is fixedly arranged on the sliding piece in the vertical direction, an adjusting assembly is arranged on the sleeve and comprises an elastic piece, one end of the elastic piece is fixedly connected with the sleeve, the other end of the elastic piece is connected with the guide rod, and the guide rod is driven to slide in the sleeve.

Further, the adjusting part still includes a thread bush, the sleeve is circular tubular structure, the sleeve outer wall is provided with the screw thread, thread bush spiral setting is in on the sleeve, the periphery of guide bar is fixed with a push pedal along the horizontal direction, the elastic component sets up to one set and establishes spring on the sleeve, the both ends of spring respectively with the thread bush and the push pedal is connected.

Further, the guide rod is set to be a square rod, and the inner cavity of the sleeve is a square channel matched with the guide rod.

Furthermore, scales are marked on the guide rod and used for displaying the distance between the top of the bearing part and the axis of the glass rod.

Further, the sliding part is provided as a sliding block, the blowtorch and the sleeve are fixedly arranged on the sliding block, and the sliding block is driven by a driving assembly to slide back and forth along the length direction of the glass rod.

Further, drive assembly includes threaded rod, motor and locating part, the slider is followed the slip direction of blowtorch runs through set up threaded hole, the slider spiral setting is in on the threaded rod, the output of motor with threaded rod fixed connection is used for the drive the threaded rod rotates, the locating part with the slider butt is used for the restriction the slider rotates.

Furthermore, the limiting part is arranged as a slide rail, the slide block is slidably arranged in the slide rail, and the inner wall of the slide rail is abutted to the slide block.

Furthermore, the bearing part is a graphite plate which is horizontally arranged, and the graphite plate is obliquely arranged relative to two sides of the blast lamp in a downward way.

Further, graphite plate, guide bar and sleeve are provided with two sets ofly, two sets ofly graphite plate, guide bar and sleeve set up respectively in the both sides of blowtorch.

Compared with the prior art, the utility model provides a fiber preform and sheathed tube butt fusion device, through the slip setting of blowtorch to the glass pipe or the even heating of glass stick of centre gripping on left base and right base, through setting up the correction subassembly on the slip route of blowtorch, and make it slide along with the blowtorch is synchronous, make the correction subassembly correct the glass stick that softens, avoid it to produce the bending under the effect of gravity or rotation centrifugal force; more specifically, correct the subassembly and include a support portion, support portion is fixed to be located on the slider, and the backing portion slides along with the blowtorch, and support portion top and two glass stick butt when sliding, soften the back at the blowtorch with the glass stick, and support portion removes to the softening position of glass stick to push away the soft glass after the blowtorch heating, thereby correct crooked optical fiber perform, with the finished product quality who improves optical fiber perform.

Drawings

Fig. 1 is a schematic structural diagram of an entire fusion apparatus for an optical fiber preform and a sleeve according to the present embodiment of the present invention;

fig. 2 shows an embodiment of the fusion splicing apparatus for an optical fiber preform and a sleeve provided by the present invention.

In the figure: 1. a fixing assembly; 2. a blowtorch; 3. a corrective component; 4. an adjustment assembly; 5. a slider; 6. a drive assembly; 11. a glass rod; 31. a graphite plate; 32. a guide rod; 33. a sleeve; 41. a threaded sleeve; 42. a spring; 43. pushing the plate; 61; a threaded rod; 62. a slide rail; 63. an electric motor.

Detailed Description

The following detailed description of the preferred embodiments of the invention, which is to be read in connection with the accompanying drawings, forms a part of this application, and together with the embodiments of the invention, serve to explain the principles of the invention and not to limit its scope.

As shown in fig. 1-2, the fusion splicing apparatus for an optical fiber preform and a sleeve in this embodiment includes a fixing component 1, a sliding component, a torch 2 and a correcting component 3, where the fixing component 1 includes two fixing ends disposed oppositely, the two fixing ends are respectively used for fixing two glass rods 11 and enabling the two glass rods 11 to be coaxial and to be in butt joint with each other, the two fixing ends can be synchronously rotated and disposed, the sliding component can be slidably connected with the fixing component 1 along the length direction of the two glass rods 11, the torch 2 is fixedly disposed on the sliding component and used for heating the butt joint of the two glass rods 11, the correcting component 3 includes a bearing portion, the bearing portion is fixedly disposed on the sliding component, and the top of the bearing portion is abutted against the two glass rods 11.

The fixing component 1 is a structure for clamping and fixing the glass rod 11 when the glass rods 11 are butted, the fixing component 1 is provided with two fixing ends, when the glass rods 11 are welded, the two fixing ends respectively clamp one section of the glass rod 11 and drive the two sections of the glass rods 11 to synchronously rotate on the same axis, and the fixing end is a clamping structure which can be easily thought by a person skilled in the art and is not described herein in detail; the sliding part is a structure for driving the blowtorch 2 to slide back and forth along the length direction of the glass rod 11, and the blowtorch 2 is fixed on the sliding part; the blowtorch 2 is a flame spraying device, the blowtorch 2 sprays flame towards the glass rod 11, and is used for heating the glass rod 11 between the two fixed ends to soften the glass rod 11, so that the two glass rods 11 are welded together;

the correcting component 3 is a structure for correcting the softened glass rod 11, the softened glass rod 11 is bent due to the influence of gravity or centrifugal force when being butted, the correcting component 3 can correct the softened glass rod, concretely, the correcting component 3 comprises a bearing part, the bearing part is fixedly arranged on a sliding part, the bearing part slides along with the blowtorch 2, the top of the bearing part is abutted against the two glass rods 11 when the bearing part slides, after the blowtorch 2 softens the glass rods 11, the bearing part moves to the softened part of the glass rod 11 so as to flatten the softened glass heated by the blowtorch 2, and the part where the glass rod 11 is bent is corrected.

It can be understood that the fusion splicing apparatus for an optical fiber preform and a sleeve in the present embodiment can also be used for reducing operation when two sections of glass rods 11 with different outer diameters are fused, and the outer diameter of the glass rod 11 is changed by contacting the rotating glass rod 11 in a softened state with the supporting part.

In a preferred embodiment, as shown in fig. 2, the correcting assembly 3 further includes a guiding rod 32 and a sleeve 33, the supporting portion is fixedly connected to an upper end of the guiding rod 32, the guiding rod 32 is slidably disposed in the sleeve 33 along an extending direction of the sleeve 33, the sleeve 33 is fixedly disposed on the sliding member along a vertical direction, the sleeve 33 is provided with the adjusting assembly 4, the adjusting assembly 4 includes an elastic member, one end of the elastic member is fixedly connected to the sleeve 33, and the other end of the elastic member is connected to the guiding rod 32 for driving the guiding rod 32 to slide in the sleeve 33.

Wherein, the bearing part is connected with the sliding part through the guide rod 32 and the sleeve 33, the bearing part is connected with the sleeve 33 through the guide rod 32 in a sliding way along the vertical direction, the adjusting component 4 is a structure for setting the height of the bearing part, the distance between the bearing part and the axis of the glass rod 11 is adjusted by setting the height of the bearing part, when the fusion welding operation is carried out, the bearing part is tangent with the glass rod 11, the distance between the bearing part and the axis of the glass rod 11 is the preset radius of the glass rod 11, when the bending part or the bulge part of the glass rod 11 rotates to be contacted with the bearing part, the bearing part can be gradually pushed flat to realize the correcting effect, the guide rod 32 is connected with the sleeve 33 through the elastic part, when the bearing part encounters the bulge or the bending part which is not softened in the moving process, the elastic part can be compressed, the bearing part moves downwards to avoid the movement interference with the glass rod 11, to improve the safety of the corrective procedure.

In a preferred embodiment, as shown in fig. 2, the adjusting assembly 4 further includes a threaded sleeve 41, the sleeve 33 is a circular tubular structure, the outer wall of the sleeve 33 is provided with threads, the threaded sleeve 41 is spirally disposed on the sleeve 33, a pushing plate 43 is fixed on the outer periphery of the guide rod 32 along the horizontal direction, the elastic member is configured as a spring 42 disposed on the sleeve 33, and two ends of the spring 42 are respectively connected with the threaded sleeve 41 and the pushing plate 43.

Wherein, the height of the threaded sleeve 41 can be adjusted by rotating the threaded sleeve 41, the threaded sleeve 41 is connected with the push plate 43 through the spring 42, and the push plate 43 is driven to move when the threaded sleeve 41 moves, so that the guide rod 32 slides in the sleeve 33, thereby adjusting the height of the bearing part; it will be appreciated that the spring 42 may be fixedly coupled to the push plate 43, or may be coupled to the push plate 43 in a contacting manner, so that the guide bar 32 and the support portion can be easily replaced when coupled to the push plate 43 in a contacting manner.

In a preferred embodiment, the guide rod 32 is provided as a square rod, and the inner cavity of the sleeve 33 is a square channel adapted to the guide rod 32.

The cross section of the guide rod 32 is a square structure, and the inner cavity of the sleeve 33 is a square channel adapted to the guide rod 32, so as to prevent the guide rod 32 and the support part from rotating relatively around the axis of the sleeve 33, although the guide rod 32 may be configured to have other angular structures as long as it does not rotate in the sleeve 33.

In a preferred embodiment, the guide rod 32 is marked with a scale to show the distance between the support and the axis of the glass rod.

The scale marked on the guide rod 32 is the distance between the bearing part and the axis of the glass rod 11 and is also the preset radius of the glass rod 11, the boundary of the sleeve 33 and the guide rod 32 is displayed as the real-time size, and the bearing part can be conveniently adjusted to the preset position through the setting of the scale, so that the bearing part is arranged by being attached to the glass rod 11.

In a preferred embodiment, the sliding member is provided as a slider 5, and the torch 2 and the sleeve 33 are fixedly provided on the slider 5, and the slider 5 is driven by a driving assembly 6 to slide back and forth along the length direction of the glass rod 11.

Of course, the slider 5 may be replaced with another sliding structure as long as it can move the torch 2 and the receiver reciprocally along the longitudinal direction of the glass rod 11.

In a preferred embodiment, as shown in fig. 1, the driving assembly 6 includes a threaded rod 61, a motor 63, and a limiting member, the sliding block 5 is threaded through the threaded rod 61 along the sliding direction of the torch 2, the sliding block 5 is spirally disposed on the threaded rod 61, an output end of the motor 63 is fixedly connected to the threaded rod 61 for driving the threaded rod 61 to rotate, and the limiting member abuts against the sliding block 5 for limiting the sliding block 5 to rotate.

Wherein, motor 63 drives threaded rod 61 around its axis forward and backward rotation, because stopper restriction slider 5 rotates with threaded rod 61, threaded rod 61 will drive slider 5 along the length direction reciprocating motion of threaded rod 61.

It will be appreciated that the drive assembly 6 may be replaced by other drive means, such as an electric push rod, or a manual dial may be provided at the end of the threaded rod 61, instead of the motor 63, to manually drive the movement of the slide 5.

In a preferred embodiment, the limiting member is provided as a slide rail 62, the sliding block 5 is slidably disposed in the slide rail 62, and the inner wall of the slide rail 62 abuts against the sliding block 5.

It can be understood that other limiting structures may be used instead of the sliding rail 62, as long as the limiting structure does not limit the movement of the sliding block 5 along the length direction of the threaded rod 61 while limiting the rotation of the sliding block 5, for example, a sliding rod is inserted into the sliding block 5 along the length direction of the threaded rod 61, and the sliding rod is fixed to the base, so as to achieve the effect of limiting the rotation of the sliding block 5.

In a preferred embodiment, as shown in fig. 2, the support portion is a horizontally disposed graphite plate 31, and the graphite plate 31 is disposed to be inclined downward with respect to both sides of the torch 2.

The two sides of the graphite plate 31 are inclined downwards, the middle part of the graphite plate 31 is arranged flatly, and the inclined structures on the two sides can prevent the graphite plate 31 from directly scraping off the glass in a softened state in the moving process and also can prevent the graphite plate 31 from directly colliding with a convex part or a bent part of the glass which is not softened, so that the graphite plate 31 can compress the elastic part under the action of the inclined plane and interact downwards to avoid the movement interference with the glass rod 11;

it will be appreciated that other refractory materials may be used as the bearing portion in place of the graphite plate 31.

In a preferred embodiment, the graphite plates 31, the guide rods 32, and the sleeves 33 are provided in two sets, and the two sets of graphite plates 31, the guide rods 32, and the sleeves 33 are respectively provided on both sides of the torch 2.

Wherein, set up two sets of graphite plates 31, guide bar 32 and sleeve 33 respectively in the both sides of blowtorch 2 for when blowtorch 2 is reciprocating motion, different graphite plates 31 homoenergetic just can correct the operation to the position of blowtorch 2 heating.

The working process comprises the following steps: when the fusion operation is required, two glass rods 11 are respectively placed in a left base and a right base, the driving guide rod 32 is moved to the corresponding scale value position by using the threaded sleeve 41 according to the size of the glass rod 11 after preset fusion, on the next step, the two glass rods 11 are driven to synchronously rotate through the bases, the blowtorch 2 is turned on to heat the glass rod 11, meanwhile, the blowtorch 2 and the graphite plate 31 are driven to move through the motor 63, after the blowtorch 2 heats and softens the glass rod 11, the graphite plate 31 moves to the position of the softened glass rod 11, if the softened glass rod 11 has a bend or a bulge, when the glass rod 11 rotates to be in contact with the graphite plate 31, the bend and the bulge on the glass rod 11 are pushed to be flat, so that the effect of correcting the glass rod 11 is achieved.

Compared with the prior art: the utility model provides a fusion splicing device of an optical fiber preform and a sleeve, which evenly heats a glass tube or a glass rod clamped on a left base and a right base through the sliding arrangement of a blowtorch, and corrects the softening through arranging a correction component on the sliding path of the blowtorch and leading the correction component to synchronously slide along with the blowtorch, thereby avoiding the correction component from bending under the action of gravity or rotating centrifugal force; more specifically, the correction component comprises a graphite plate, a guide rod and a sleeve, the graphite plate is fixedly connected with the guide rod, the graphite plate is arranged on a sliding path of the blowtorch, the guide rod is arranged in the sleeve in a sliding mode along the vertical direction, the sleeve is fixedly connected with the blowtorch, the graphite plate slides synchronously with the blowtorch through the sleeve and the guide rod to push flat softened glass heated by the blowtorch, meanwhile, through the arrangement of the adjustment component, the graphite plate can automatically adjust the height according to the protrusion or radian of the surface of the glass rod, the adjustment component comprises an adjustment piece and a spring, the adjustment piece pushes the guide rod to move through the spring, the graphite plate can automatically move downwards when moving to the protrusion or the bending part of the glass rod, the movement interference with the glass rod is avoided, the damage to the glass rod or the graphite plate is caused, and therefore the device can safely and efficiently correct the prefabricated rod of the bent optical fiber, to improve the quality of the finished optical fiber preform.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.

Claims (10)

1. A fusion splicing device of an optical fiber preform and a sleeve is characterized by comprising a fixing component, a sliding component, a blowtorch and a correcting component;

the fixing component comprises two fixing ends which are oppositely arranged, the two fixing ends are respectively used for fixing the two glass rods and enabling the two glass rods to be coaxial and in butt joint, and the two fixing ends can be synchronously and rotatably arranged;

the sliding piece can be connected with the fixing component in a sliding manner along the length direction of the two glass rods;

the blowtorch is fixedly arranged on the sliding piece and used for heating the butt joint of the two glass rods;

the correcting assembly comprises a bearing part, the bearing part is fixedly arranged on the sliding part, and the top of the bearing part is abutted to the two glass rods.

2. The apparatus according to claim 1, wherein the correcting assembly further comprises a guiding rod and a sleeve, the supporting portion is fixedly connected to an upper end of the guiding rod, the guiding rod is slidably disposed in the sleeve along an extending direction of the sleeve, the sleeve is fixedly disposed on the sliding member along a vertical direction, the sleeve is provided with an adjusting assembly, the adjusting assembly comprises an elastic member, one end of the elastic member is fixedly connected to the sleeve, and the other end of the elastic member is connected to the guiding rod for driving the guiding rod to slide in the sleeve.

3. The apparatus according to claim 2, wherein the adjusting assembly further comprises a threaded sleeve, the sleeve has a circular tubular structure, the outer wall of the sleeve is provided with threads, the threaded sleeve is spirally disposed on the sleeve, a push plate is fixed to the outer circumference of the guide rod along the horizontal direction, the elastic member is a spring sleeved on the sleeve, and two ends of the spring are respectively connected to the threaded sleeve and the push plate.

4. The apparatus of claim 3, wherein the guiding rod is a square rod, and the inner cavity of the sleeve is a square channel adapted to the guiding rod.

5. The apparatus of claim 4, wherein the guide rod is marked with a scale for indicating the distance between the top of the support portion and the axis of the glass rod.

6. The apparatus of claim 2, wherein the sliding member is a slider, the torch and the sleeve are fixedly disposed on the slider, and the slider is driven by a driving assembly to slide back and forth along the length of the glass rod.

7. The apparatus according to claim 6, wherein the driving assembly comprises a threaded rod, a motor, and a limiting member, the sliding block has a threaded hole penetrating therethrough along a sliding direction of the torch, the sliding block is spirally disposed on the threaded rod, an output end of the motor is fixedly connected to the threaded rod for driving the threaded rod to rotate, and the limiting member abuts against the sliding block for limiting the sliding block from rotating.

8. The apparatus according to claim 7, wherein the position-limiting member is a slide rail, the slide block is slidably disposed in the slide rail, and an inner wall of the slide rail abuts against the slide block.

9. An optical fiber preform and sleeve fusion splicing apparatus as claimed in any one of claims 1 to 8, wherein said support portion is a horizontally disposed graphite plate disposed obliquely downward with respect to both sides of said torch.

10. The apparatus of claim 9, wherein the graphite plates, the guide rods, and the sleeves are disposed in two sets, and the two sets of the graphite plates, the guide rods, and the sleeves are disposed on two sides of the torch respectively.

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