CN203371171U - Nozzle used for ceramic cutting by optical fiber laser - Google Patents
Nozzle used for ceramic cutting by optical fiber laser Download PDFInfo
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- CN203371171U CN203371171U CN201320195977.4U CN201320195977U CN203371171U CN 203371171 U CN203371171 U CN 203371171U CN 201320195977 U CN201320195977 U CN 201320195977U CN 203371171 U CN203371171 U CN 203371171U
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Abstract
Provided is a nozzle used for ceramic cutting by an optical fiber laser. The nozzle includes an air-flow channel and a blow hole. The nozzle is characterized in that a plurality of air conducting holes are disposed on a contact surface of the nozzle. No shock wave exists in an air flow filed of the nozzle provided by the utility model in a cutting process, and outlet air flow of the nozzle is uniform and with a tidy boundary. Meanwhile no force is applied on a workpiece by the outlet air flow, so that cutting speed is increased obviously and cutting quality is improved distinctly in an actual cutting process.
Description
Technical field
The utility model relates to optical-fiber laser ceramic cutting field, relates in particular to a kind of nozzle for the optical-fiber laser ceramic cutting.
Background technology
Laser cutting parameter is that the energy discharged while adopting laser beam irradiation to ceramic surface makes pottery melt and evaporate, pass through focus set, make laser beam concentrate on very little zone, energy height is concentrated cutting part is carried out to rapid local heat, make the material evaporation, along with light beam Linear-moving relative to material, make hole form continuously the joint-cutting of narrower in width, trimming is influenced by heat very little, and laser beam does not apply any power to material, for untouchable processing, so the pottery of Laser Processing has advantages of that distortion is little or is not out of shape, in current cutting ceramic by laser industry, what great majority adopted is traditional carbon dioxide laser ceramic cutting technology, lasing light emitter generally adopts the carbon dioxide high-power laser beam, due to its efficient cutting speed and substantially smooth cutting section, at present be also the main flow technique of pottery minute plate processing.
Yet, the carbon dioxide laser cutting has following shortcoming for the ceramic cutting processing of some requirements at the higher level: cost is higher, efficiency is low, cut edge is uneven, for example the straight cuts of circuit unit profile just can't be suitable for, concavo-convex with as the ceramic substrate marginal existence stamp edge of carbon dioxide high power laser light cutting, the fluctuating scope is larger, for the efficient while guaranteeing the cutting ceramic by laser substrate, reduce similar stamp edge, someone has proposed to come with optical-fiber laser the method for ceramic cutting, as a rule, improve the cutting speed of material, the way adopted is to improve the cutting pressure of surface of the work, and the cutting pressure that will improve surface of the work will improve the supply gas pressure of nozzle, any nozzle, if the ratio of the stream pressure of ejection and the stream pressure of surrounding environment is greater than at 1.89 o'clock, the air-flow of nozzle ejection is exactly not adequately expanded supersonic airstream so, air-flow expands suddenly and can produce shock wave, the existence of shock wave will cause cutting speed, width of slit, cutting performance and cutting stability are greatly affected.
The utility model content
The technical problem that the utility model solves is: the problem of the excessive generation shock wave of nozzle supply gas pressure impact cutting achievement during for the optical-fiber laser ceramic cutting, a kind of new type nozzle is provided, and guarantee stable, speed, the quality and performance of cutting.
The technical solution adopted in the utility model is, a kind of nozzle for the optical-fiber laser ceramic cutting, comprise gas channel and fumarole, and the contact-making surface of described nozzle has several gas ports.
As further improvement of the utility model, described nozzle is processed by copper product, and the cutting head of nozzle and laser equipment is threaded connection.
As further improvement of the utility model, described nozzle, fumarole and gas port are circular.
As further improvement of the utility model, described nozzle has four gas ports.
As further improvement of the utility model, on the contact-making surface of described nozzle, cross groove is arranged.
As further improvement of the utility model, described fumarole diameter is 0.7-1mm, and described gas port diameter is 0.5-0.8mm.
The beneficial effects of the utility model are; in cutting process; there do not is shock wave in the gas flowfield of the nozzle of the utility model design; the jet expansion air-flow is even, and border is neat, and the while exit flow does not have masterpiece and is used on workpiece; in actual cutting process; cutting speed is improved significantly, and cut quality is also improved significantly, as the roughness dross little, the joint-cutting lower limb of otch section seldom waits; Under same laser power and supply gas pressure, the thickness of slab that new type nozzle is cut than conventional spout also increases; Nozzle and by between the cut part the distance variation has occurred, cutting performance is also more stable; New type nozzle is unlimited approaching but do not contact in nozzle and workpiece distance, also can cut finely, and conventional spout distance between nozzle and workpiece when cutting must be greater than 1mm simultaneously.
The accompanying drawing explanation
Fig. 1 is the flow chart of fiber cut ceramic methods;
Fig. 2 is the schematic diagram that nozzle is connected with cutting head;
Fig. 3 is the contact-making surface schematic diagram of nozzle;
Fig. 4 is the structural representation of nozzle;
In figure: 1, gas channel; 2, cutting head; 3, nozzle; 4, gas port; 5, Cutting platform; 6, fumarole; 7, cross recess; 8, contact-making surface.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further elaborated.
S1, commissioning device, the parameters such as the frequency of setting laser, pulsewidth, speed and focal height, the frequency of laser is 10kHz, pulsewidth is 28ms, speed is 50mm/s, and focal height is 20000step, standard unit when step is laser cutting device adjustment focal height herein in parameter database;
S2, load onto cutting nozzles 3, the cutting head 2 of nozzle 3 and laser equipment is threaded connection, this nozzle 3 is not identical with traditional nozzle, redesign, nozzle 3 is processed by copper product, comprise gas channel 1 and fumarole 6, nozzle 3, fumarole 6 and gas port 4 are all circular, 4 gas ports 4 and cross recess 7 are arranged on the contact-making surface 8 of described nozzle 3, fumarole 6 diameters are 0.8mm, gas port 4 diameters are 0.6mm, this cutting nozzles 3 utilizes venturi principle, make exactly gas form " vacuum " district at the rear side of venturi outlet, can make unlimited the tapping into nozzle 3 of ceramic substrate, make the ceramic substrate of cutting can not blown power, in practical operation, there do not is shock wave in the gas flowfield of nozzle 3, nozzle 3 exit flows are even, border is neat, the while exit flow does not have masterpiece and is used on workpiece, in actual cutting process, cutting speed is improved significantly, cut quality is also improved significantly, as little as the roughness of otch section, the dross of joint-cutting lower limb seldom waits, under same laser power and supply gas pressure, the thickness of slab that new type nozzle is cut than conventional spout also increases, nozzle 3 and by between the cut part the distance variation has occurred, cutting performance is also more stable, new type nozzle is unlimited approaching but do not contact in nozzle 3 and workpiece distance, also can cut finely, and conventional spout distance between nozzle and workpiece when cutting must be greater than 1mm simultaneously,
S3, clamping pallet smelting tool, on cutting table board 5, find relative position;
S4, ceramic substrate is placed on pallet smelting tool, fix, ceramic substrate is before being placed into pallet smelting tool, need to coat homemade absorbent, laser laser equipment emitted due to pottery can not absorb fully, so we will be by special surface treatment, help ceramic absorbing laser, thereby can cut continuously and wear pottery, we have found the surperficial blacking of a kind of special material-----to process optical absorbing agent, described absorbent is formed by oily material and acetone proportioning, the proportioning volume ratio of oily material and acetone is 1:525, stir and get final product after dilution, oily material is by pigment, the pigment auxiliary agent, stabilizing agent, resist, wetting agent and anticorrisive agent proportioning form, pigment adopts ferric tannate and gallic acid iron, the pigment auxiliary agent adopts dark blue dyestuff, stabilizing agent adopts oxalic acid solution, resist adopts the resin type cure polymer, wetting agent adopts glycerine, anticorrisive agent adopts the penta sodium pentachlorophenate medicament, the mass percent that described pigment accounts for oily material is 16.7%, the mass percent that the pigment auxiliary agent accounts for oily material is 16.7%, the mass percent that stabilizing agent accounts for oily material is 16.7%, the mass percent that resist accounts for oily material is 16.7%, the mass percent that wetting agent accounts for oily material is 16.7%, the mass percent that anticorrisive agent accounts for oily material is 16.5%, being added in container stirs can obtain oily material, this optical absorbing agent characteristics are environmental protection, easily be coated with, easily clean etc., the pottery coated can be placed directly on cutting machine and process, the absorbing laser effect is fine, not disconnected optical phenomenon, cutting us directly is placed in alcohol liquid and cleans and can remove, can not change the characteristic of pottery itself, do not have corrosion phenomenon yet, outward appearance with do not do the same that blacking processes, there is no any pollution,
S5, start the cutting.
Embodiment 2: the difference of itself and embodiment 1 is,
In step S1, the frequency of laser is 5kHz, and pulsewidth is 10ms, and speed is 8mm/s, and focal height is 18000step;
In step S2, fumarole 6 diameters are 0.7mm, and gas port 4 diameters are 0.5mm;
In step S4, the volume ratio of oily material and acetone is 1:500, the mass percent that described pigment accounts for oily material is 10%, the mass percent that the pigment auxiliary agent accounts for oily material is 10%, the mass percent that stabilizing agent accounts for oily material is 30%, the mass percent that resist accounts for oily material is 30%, the mass percent that wetting agent accounts for oily material is 10%, and the mass percent that anticorrisive agent accounts for oily material is 10%.
Embodiment 3: the difference of itself and embodiment 1 is,
In step S1, the frequency of laser is 15kHz, and pulsewidth is 50ms, and speed is 80mm/s, and focal height is 18000step;
In step S2, fumarole 6 diameters are 1mm, and gas port 4 diameters are 0.8mm;
In step S4, the volume ratio of oily material and acetone is 1:550, the mass percent that described pigment accounts for oily material is 30%, the mass percent that the pigment auxiliary agent accounts for oily material is 30%, the mass percent that stabilizing agent accounts for oily material is 10%, the mass percent that resist accounts for oily material is 10%, the mass percent that wetting agent accounts for oily material is 10%, and the mass percent that anticorrisive agent accounts for oily material is 10%.
Embodiment 4: the difference of itself and embodiment 1 is,
In step S1, the frequency of laser is 12kHz, and pulsewidth is 20ms, and speed is 60mm/s, and focal height is 21000step;
In step S2, fumarole 6 diameters are 0.9mm, and gas port 4 diameters are 0.7mm;
In step S4, the volume ratio of oily material and acetone is 1:530, the mass percent that described pigment accounts for oily material is 10%, the mass percent that the pigment auxiliary agent accounts for oily material is 10%, the mass percent that stabilizing agent accounts for oily material is 10%, the mass percent that resist accounts for oily material is 10%, the mass percent that wetting agent accounts for oily material is 30%, and the mass percent that anticorrisive agent accounts for oily material is 30%.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the characteristics of this embodiment or example description.In this manual, the schematic statement of above-mentioned term not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or characteristics can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: in the situation that do not break away from principle of the present utility model and aim can be carried out multiple variation, modification, replacement and modification to these embodiment, scope of the present utility model is limited by claim and equivalent thereof.
Claims (6)
1. the nozzle for the optical-fiber laser ceramic cutting, comprise gas channel and fumarole, it is characterized in that, several gas ports are arranged on the contact-making surface of described nozzle.
2. nozzle according to claim 1, is characterized in that, described nozzle is processed by copper product, and the cutting head of nozzle and laser equipment is threaded connection.
3. nozzle according to claim 1, is characterized in that, described nozzle, fumarole and gas port are circular.
4. nozzle according to claim 1, is characterized in that, described nozzle has four gas ports.
5. nozzle according to claim 1, is characterized in that, on the contact-making surface of described nozzle, cross groove arranged.
6. nozzle according to claim 3, is characterized in that, described fumarole diameter is 0.7-1.0mm, and described gas port diameter is 0.5-0.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320195977.4U CN203371171U (en) | 2013-04-18 | 2013-04-18 | Nozzle used for ceramic cutting by optical fiber laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320195977.4U CN203371171U (en) | 2013-04-18 | 2013-04-18 | Nozzle used for ceramic cutting by optical fiber laser |
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| Publication Number | Publication Date |
|---|---|
| CN203371171U true CN203371171U (en) | 2014-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320195977.4U Expired - Fee Related CN203371171U (en) | 2013-04-18 | 2013-04-18 | Nozzle used for ceramic cutting by optical fiber laser |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103192182A (en) * | 2013-04-18 | 2013-07-10 | 苏州光韵达光电科技有限公司 | Nozzle for cutting ceramics by aid of fiber laser |
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2013
- 2013-04-18 CN CN201320195977.4U patent/CN203371171U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103192182A (en) * | 2013-04-18 | 2013-07-10 | 苏州光韵达光电科技有限公司 | Nozzle for cutting ceramics by aid of fiber laser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140101 Termination date: 20190418 |