CN113979626A - Glass capillary bell mouth processing device and method based on laser heating - Google Patents
Glass capillary bell mouth processing device and method based on laser heating Download PDFInfo
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- CN113979626A CN113979626A CN202111466926.6A CN202111466926A CN113979626A CN 113979626 A CN113979626 A CN 113979626A CN 202111466926 A CN202111466926 A CN 202111466926A CN 113979626 A CN113979626 A CN 113979626A
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- 239000011521 glass Substances 0.000 title claims abstract description 86
- 238000004093 laser heating Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title abstract description 17
- 230000003287 optical effect Effects 0.000 claims abstract description 32
- 238000002844 melting Methods 0.000 claims abstract description 10
- 230000008018 melting Effects 0.000 claims abstract description 10
- 210000004127 vitreous body Anatomy 0.000 claims abstract description 3
- 238000007664 blowing Methods 0.000 claims description 34
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical group O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 12
- 239000011358 absorbing material Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 10
- 238000003672 processing method Methods 0.000 claims description 10
- 230000031700 light absorption Effects 0.000 claims description 9
- 239000006060 molten glass Substances 0.000 claims description 9
- 238000003754 machining Methods 0.000 claims description 8
- 238000010521 absorption reaction Methods 0.000 claims description 7
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 6
- 239000001569 carbon dioxide Substances 0.000 claims description 6
- 230000001678 irradiating effect Effects 0.000 claims description 6
- 239000004065 semiconductor Substances 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 229910052732 germanium Inorganic materials 0.000 claims description 4
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 4
- 239000005304 optical glass Substances 0.000 claims description 3
- 239000013307 optical fiber Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/04—Re-forming tubes or rods
- C03B23/09—Reshaping the ends, e.g. as grooves, threads or mouths
- C03B23/099—Reshaping the ends, e.g. as grooves, threads or mouths by fusing, e.g. flame sealing
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a glass capillary bell mouth processing device and method based on laser heating, which comprises a laser and an optical system, wherein the laser is used for emitting laser, the optical system is arranged at the light emitting end of the laser and is used for converging light emitted by the laser to an area of the end surface of a capillary tube with a central hole as the center to carry out bell mouth type vitreous body melting processing on the end surface of the capillary tube, so that the quality of a processed glass tube bell mouth can be ensured, and the processing cost is greatly reduced.
Description
Technical Field
The invention belongs to the technical field of glass processing, and particularly relates to a glass capillary bell mouth processing device and method based on laser heating.
Background
The optical fiber is a transmission channel of light and is a basic device for modern optical signal transmission and optical energy transmission. When light is to be extracted from or injected into an optical fiber, the end face of the optical fiber needs to be treated as necessary to meet the requirements for light input and output. Since the optical fiber is thin, a glass capillary must be used to hold the optical fiber in order to manipulate the surface of the optical fiber. Because the inner hole of the capillary is precisely matched with the optical fiber, a horn mouth is usually processed on the end face of the glass capillary in order to facilitate the optical fiber to penetrate into the inner hole of the capillary. At present, three methods, namely a mechanical method, a chemical corrosion method and a hot blowing method, are used for processing the horn mouth on the end face of the capillary tube. The disadvantage of the machining process is that the machined flare area can have microcracks that affect capillary reliability. The disadvantage of the chemical etching method is that it is not environmentally friendly. The current processing method of the hot blowing method is as follows: (1) simultaneously heating a plurality of positions of a capillary filament with a margin on the diameter along the axial direction of the tube; (2) when the temperature reaches the softening point of the glass, blowing air into the tube to pressurize, wherein the heated area expands under the action of air pressure to form a bell mouth in the tube; (3) after cooling, grinding and polishing the capillary filament with the bell mouth to a specified size on a centerless grinder; (4) and cutting in the bell mouth area to obtain a capillary tube product with a bell mouth on the end surface. The method has complex processing and high cost.
Disclosure of Invention
The invention aims to provide a glass capillary bell mouth machining device and method based on laser heating, which are used for overcoming the problems in the prior art, and can ensure the quality of a machined glass capillary bell mouth and greatly reduce the machining cost.
In order to achieve the purpose, the invention adopts the following technical scheme:
glass capillary horn mouth processingequipment based on laser heating, including laser instrument and optical system, the laser instrument is used for transmitting laser, optical system sets up the light-emitting end at the laser instrument for the light that sends the laser instrument assembles on capillary one end terminal surface uses the centre bore as the region of center, carries out vitreous body melting to capillary terminal surface horn mouth.
The laser melting device comprises a laser irradiation end face, a capillary clamping device and an air blowing device, wherein the laser irradiation end face is provided with a laser source, the capillary clamping device is used for clamping a capillary, the air blowing device is connected with the other end of the capillary and is used for blowing gas into the other end of the capillary to blow off a molten glass body on the laser irradiation end face.
Further, the laser is a carbon dioxide laser; the optical system is a reflection focusing optical system or a germanium lens system.
Further, the reflective focusing optical system is a copper reflective focusing lens.
Further, the laser is a semiconductor laser, a fiber laser or a YAG solid laser; the optical system is made of conventional optical glass.
Further, the glass melting furnace also comprises a light absorbing material arranged in a central hole at one end of the glass capillary, and the light absorbing material is used for absorbing laser to raise the temperature of the molten glass.
Further, the light absorbing material is a steel wire.
According to the glass capillary bell mouth processing method based on laser heating, a beam of laser is used for irradiating an area with a central hole on the end face of a capillary tube as a center, the laser is positioned in a glass absorption waveband, so that a glass body of the irradiation area on the end face of the capillary tube is melted, and the central hole is closed due to glass melting; and then blowing air to the central hole of the glass capillary at the other end of the glass capillary, and blowing away the glass body melted at the laser irradiation end.
A glass capillary bell mouth processing method based on laser heating is characterized in that a light absorption material is arranged in a center hole at one end of a capillary; irradiating the area with the center hole as the center on the end face of the capillary tube by laser, wherein the laser is in a non-absorption waveband of glass, so that the glass body in the irradiation area on the end face of the capillary tube is melted and bonded with the light absorption material; and blowing air to the central hole of the capillary tube at the other end of the capillary tube, and blowing away the glass body and the light absorption material which are melted at the laser irradiation end.
Compared with the prior art, the invention has the following beneficial technical effects:
according to the invention, the laser and the optical system are matched to carry out laser melting on the glass body at the end face of the capillary tube, so that the horn mouth of the capillary tube can be efficiently and quickly machined; meanwhile, the invention can avoid the environmental protection problem caused by a chemical corrosion method; the invention has simple structure design, uses conventional materials, greatly reduces the cost of processing the capillary bell mouth by a hot processing method, and has wide market prospect.
Furthermore, the invention also ensures the stability of the processing process by arranging the capillary tube clamping device and the air blowing device, realizes the stable fixation of the capillary tube by the capillary tube clamping device, and blows gas into the other end of the capillary tube by connecting the air blowing device with the other end of the capillary tube to blow off the molten glass body on the laser irradiation end face, thereby having simple operation and being capable of rapidly and thoroughly cleaning the molten glass body.
Furthermore, the optical system supported by the spherical optical glass can be selected as a laser converging system, so that the cost can be greatly reduced, and the influence of laser on the optical system can be avoided by selecting a semiconductor laser, a fiber laser or a YAG solid laser, so that the service life is prolonged, and the working stability and the controllability are ensured.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is a schematic structural diagram of a first laser heating-based capillary flare machining apparatus according to the present invention.
Fig. 2 is a schematic structural diagram of a second laser heating-based capillary flare machining apparatus according to the present invention.
Fig. 3 is a schematic structural diagram of a third laser heating-based capillary flare machining apparatus according to the present invention.
Wherein: l-1, L-2 and L-3 are lasers; IM-1, IM-2 and IM-3 are optical systems; JCJ-1, JCJ-2 and JCJ-3 are capillary holders; GQ-1, GQ-2 and GQ-3 are air blowing devices; MXG is capillary tube.
Detailed Description
The present invention provides a method and an apparatus for machining a glass capillary flare by laser heating, which are described in detail below with reference to the accompanying drawings and specific examples.
The invention provides a first glass capillary bell mouth processing method based on laser heating, which utilizes laser to heat the peripheral area of a central hole of the end surface of a glass capillary and utilizes gas to strip a molten glass body to form a bell mouth, and the processing method comprises the following steps: (1) irradiating an area which takes the central hole as the center on the end surface of the glass capillary tube by a beam of laser, wherein the laser is positioned in a glass absorption waveband, so that the glass body of the irradiation area on the end surface of the glass capillary tube is melted and the central hole is closed due to the melting of the glass; (2) blowing air to the central hole of the glass capillary tube at the other end of the glass capillary tube, and blowing off the glass body melted at the laser irradiation end. The method can be used for processing a horn mouth on the end face of the glass capillary.
According to the same concept, the invention provides a second glass capillary bell mouth processing method based on laser heating, which comprises the following steps: (1) arranging a light absorption material in a certain depth range in a central hole at one end of the glass capillary tube; (2) irradiating an area which takes the central hole as the center on the end surface of the glass capillary tube by a beam of laser, wherein the laser is positioned in a non-absorption waveband of the glass, so that a glass body in the irradiation area on the end surface of the glass capillary tube is melted and bonded with a light absorption material; (3) blowing air to the central hole of the glass capillary tube at the other end of the glass capillary tube, and blowing away the glass body and the light absorption material which are melted at the laser irradiation end. The method can be used for processing a horn mouth on the end face of the glass capillary.
According to the two glass capillary bell mouth processing methods based on laser heating, the invention provides a capillary bell mouth processing device, which comprises a laser, an optical system, a capillary clamping device and an air blowing device, wherein the laser is arranged on the glass capillary bell mouth processing device;
referring to fig. 1 to 3, the capillary clamping device is used for clamping a capillary, the laser is used for emitting laser, and the optical system is arranged at the light emitting end of the laser and is used for converging light emitted by the laser onto an area, centered on a central hole, of the end surface of a capillary tube MXG; and the air blowing device is used for connecting the other end of the capillary tube, blowing air into the other end of the capillary tube and blowing off the molten glass on the laser irradiation end face.
In the embodiment illustrated in fig. 1 and 2, since the glass generally absorbs light with a wavelength of 4 μm or more, in this embodiment, when the laser is a carbon dioxide laser, that is, the wavelength of the laser is located in the absorption region of the glass, the optical system is a reflection focusing optical system or a system composed of germanium lenses; at the moment, light emitted by the laser is converged on a region of the end face of the capillary tube by the optical system, wherein the center hole is used as the center, the glass body in the region is melted, the center hole of the capillary tube is closed, gas is blown into the other end of the capillary tube, and the melted glass body on the end face irradiated by the laser is blown away to form a horn mouth.
In the embodiment shown in fig. 3, if a conventional 1-micron band laser such as a semiconductor laser, a fiber laser or a YAG solid laser is used, the optical system is composed of a conventional glass lens, and in order to melt the glass body in the end irradiation region, a light absorbing material is disposed in the central hole of the capillary tube within a certain depth range, and when the laser is irradiated, the light absorbing material absorbs the laser energy and melts the peripheral glass body, the two are bonded together, and a gas is blown into the other end of the glass capillary tube, so that the horn mouth can be formed by blowing away the light absorbing material and the molten glass body. In this embodiment, the optical system is made of conventional glass and the light absorbing material is steel wire.
As shown in FIG. 1, in the preferred embodiment of the present invention, in this embodiment, a carbon dioxide laser is used as the laser L-1, the power is 300W, the optical system IM-1 is composed of a germanium lens, the light emitted from the laser is converged by the optical lens onto the end face of the capillary tube MXG mounted on the capillary tube holding device JCJ-1, the diameter of the irradiation area is 0.5 mm, and the center hole of the capillary tube MXG is used as the center; and the air blowing device GQ-1 connected with the other end of the capillary tube MXG injects gas into the capillary tube for blowing off the glass body after the glass is melted.
As shown in FIG. 2, in another preferred embodiment of the present invention, in this embodiment, the laser L-2 is a carbon dioxide laser with a power of 300W, the optical system IM-2 is a copper reflection focusing lens, the light emitted from the carbon dioxide laser is focused by the copper reflection focusing lens onto the end face of the capillary tube MXG mounted on the capillary tube holding device JCJ-2, the diameter of the irradiated area is 0.5 mm, and the gas blowing device GQ-2 connected to the other end of the capillary tube MXG is used for blowing off the glass body after the glass is melted by injecting gas into the capillary tube centered on the center hole of the capillary tube MXG.
As shown in FIG. 3, in another preferred embodiment of the present invention, in this embodiment, the laser L-3 is a fiber-coupled output semiconductor laser with a power of 300W, the optical system IM-3 is composed of a common glass lens, the light emitted from the laser is converged by the optical lens onto the end face of the capillary tube MXG mounted on the capillary tube holding device JCJ-3, and the irradiation area has a diameter of 0.5 mm and is centered on the central hole of the capillary tube MXG; the gas blowing device GQ-3 connected to the other end of the capillary tube MXG blows off the glass body after the glass melting by injecting gas into the capillary tube MXG, and in this device, a 2 mm long steel wire is inserted into the center hole of the irradiation end of the capillary tube, and the steel wire melts the glass body in the peripheral region after absorbing the energy of the semiconductor laser.
Compared with the prior art, the laser heating-based method and device for processing the horn mouth can avoid the processing cracks of the horn mouth, avoid the problem of environmental pollution and reduce the processing cost.
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (9)
1. Glass capillary horn mouth processingequipment based on laser heating, its characterized in that includes laser instrument and optical system, the laser instrument is used for transmitting laser, optical system sets up the light-emitting end at the laser instrument for the light that sends the laser instrument assembles on capillary one end terminal surface uses the centre bore as the region of center, carries out vitreous body melting to capillary terminal surface horn mouth.
2. The glass capillary flare machining device based on laser heating according to claim 1, further comprising a capillary clamping device and an air blowing device, wherein the capillary clamping device is used for clamping the capillary, and the air blowing device is connected with the other end of the capillary and is used for blowing gas into the other end of the capillary to blow off the molten glass on the laser irradiation end face.
3. The laser heating-based glass capillary flare apparatus of claim 1, wherein the laser is a carbon dioxide laser; the optical system is a reflection focusing optical system or a germanium lens system.
4. The laser heating based glass capillary flare apparatus of claim 3, wherein the reflective focusing optical system is a copper reflective focusing lens.
5. The laser heating-based glass capillary flare apparatus of claim 1, wherein the laser is a semiconductor laser, a fiber laser, or a YAG solid-state laser; the optical system is made of conventional optical glass.
6. The glass capillary flare apparatus based on laser heating of claim 5, further comprising a light absorbing material disposed in a central hole of one end of the glass capillary, wherein the light absorbing material is used for absorbing laser light to raise the temperature of the molten glass.
7. The laser heating-based glass capillary flare apparatus of claim 6, wherein the light absorbing material is a steel wire.
8. The glass capillary bell mouth processing method based on laser heating is characterized in that a laser beam is used for irradiating an area with a central hole as a center on the end face of a capillary tube, the laser beam is positioned in a glass absorption waveband, so that a glass body of the irradiation area on the end face of the capillary tube is melted, and the central hole is closed due to the melting of the glass; and then blowing air to the central hole of the glass capillary at the other end of the glass capillary, and blowing away the glass body melted at the laser irradiation end.
9. The glass capillary bell mouth processing method based on laser heating is characterized in that a light absorption material is arranged in a center hole at one end of a capillary; irradiating the area with the center hole as the center on the end face of the capillary tube by laser, wherein the laser is in a non-absorption waveband of glass, so that the glass body in the irradiation area on the end face of the capillary tube is melted and bonded with the light absorption material; and blowing air to the central hole of the capillary tube at the other end of the capillary tube, and blowing away the glass body and the light absorption material which are melted at the laser irradiation end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111466926.6A CN113979626A (en) | 2021-12-01 | 2021-12-01 | Glass capillary bell mouth processing device and method based on laser heating |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111466926.6A CN113979626A (en) | 2021-12-01 | 2021-12-01 | Glass capillary bell mouth processing device and method based on laser heating |
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| CN113979626A true CN113979626A (en) | 2022-01-28 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115490414A (en) * | 2022-08-25 | 2022-12-20 | 杰讯光电(福建)有限公司 | Manufacturing process of capillary tube of optical fiber collimator |
| CN115784581A (en) * | 2022-12-29 | 2023-03-14 | 湖北省嘉迅光电科技有限公司 | Method and device for reaming end part of capillary tube |
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| CN216639286U (en) * | 2021-12-01 | 2022-05-31 | 河北晨欣光电技术有限公司 | Glass capillary horn mouth processingequipment based on laser heating |
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2021
- 2021-12-01 CN CN202111466926.6A patent/CN113979626A/en active Pending
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| CN103787576A (en) * | 2014-01-13 | 2014-05-14 | 武汉市艾玻睿光电科技有限公司 | Preparation method and device for reaming holes on end of capillary glass tube |
| CN108947232A (en) * | 2018-07-26 | 2018-12-07 | 成都维立讯科技有限公司 | A kind of production technology of optical fiber irregularly-shaped hole capillary |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115490414A (en) * | 2022-08-25 | 2022-12-20 | 杰讯光电(福建)有限公司 | Manufacturing process of capillary tube of optical fiber collimator |
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| CN115784581A (en) * | 2022-12-29 | 2023-03-14 | 湖北省嘉迅光电科技有限公司 | Method and device for reaming end part of capillary tube |
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