CN111786246B - Multi-fold medium and high power CO2 laser tube - Google Patents
Multi-fold medium and high power CO2 laser tube Download PDFInfo
- Publication number
- CN111786246B CN111786246B CN202010884119.5A CN202010884119A CN111786246B CN 111786246 B CN111786246 B CN 111786246B CN 202010884119 A CN202010884119 A CN 202010884119A CN 111786246 B CN111786246 B CN 111786246B
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- China
- Prior art keywords
- tube
- discharge branch
- connector
- discharge
- laser
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000003860 storage Methods 0.000 claims abstract description 38
- 230000003287 optical effect Effects 0.000 claims description 21
- 238000001816 cooling Methods 0.000 claims description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 9
- 239000002826 coolant Substances 0.000 claims description 5
- 238000005245 sintering Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 230000007774 longterm Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 10
- 229910002092 carbon dioxide Inorganic materials 0.000 description 5
- 239000001569 carbon dioxide Substances 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000005284 excitation Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/02—Constructional details
- H01S3/03—Constructional details of gas laser discharge tubes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/02—Constructional details
- H01S3/03—Constructional details of gas laser discharge tubes
- H01S3/034—Optical devices within, or forming part of, the tube, e.g. windows, mirrors
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
Abstract
The invention belongs to the technical field of CO 2 laser tubes, and particularly relates to a multi-fold medium-high power CO 2 laser tube. Aiming at the problem that the spot mode and the power of a laser tube can change greatly in the using process in the prior art, the invention provides a multi-fold medium-high power laser tube which comprises an air storage tube, a discharge tube and two mounting structures which are oppositely arranged, wherein the two mounting structures are fixedly connected through at least one air storage tube, and the discharge tube is connected to the mounting structures. The mounting structures on two sides of the invention are fixedly connected into a whole through the gas storage tube, and the high-power laser tube with more folds is easier to manufacture at the same time, and the long-term stable operation of the discharge tube without deviation can be ensured, so that the long-term stable and reliable output laser power and light spots are ensured.
Description
Technical Field
The invention belongs to the technical field of CO 2 laser tubes, and particularly relates to a multi-fold medium-high power CO 2 laser tube.
Background
Along with the development of laser processing market, the market demand for high-power laser tubes is increasing, and under the condition of the prior art, only the fast-axis laser can output laser power of more than kilowatts, and the fast-axis laser has high manufacturing cost and use cost, thereby influencing the popularization and promotion of the high-power laser tubes.
Because the power of the laser tube is in direct proportion to the total length of the discharge tube, a plurality of discharge branch tubes are optically connected into a straight line by utilizing an optical lens in the prior art so as to improve the power of the laser tube, but the connection between a bracket for supporting the discharge branch tubes and between two adjacent discharge branch tubes is usually realized by adopting an adhesive mode. Because the thermal expansion coefficients of the discharge branch pipes and the adhesive material are different, a great amount of heat is generated in the use process of the discharge branch pipes, so that in the use process, the discharge branch pipes can deviate, one discharge branch pipe deviates to further deviate the next adjacent discharge pipe, namely, the deviation can be accumulated on the discharge branch pipes, and the light spot mode and the power of the laser pipe can be greatly changed in the use process.
For example, chinese patent utility model discloses a folding carbon dioxide laser tube support frame [ application number: 200820084635.4], which comprises a frame body, wherein the top of the frame body is provided with a fixing groove corresponding to a carbon dioxide laser tube, the fixing groove is in an inverted trapezoid shape, oblique sides of two trapezoid sides are tangent to the outer surface of the carbon dioxide laser tube, an adhesive is coated at the tangent position of the fixing groove and the carbon dioxide laser tube, and two or more fixing grooves are adopted.
The utility model realizes the fixation of the carbon dioxide laser tube by adopting an adhesive bonding mode, so the problem that the light spot mode and the power of the laser tube can be greatly changed in the use process exists.
Disclosure of Invention
The invention aims to solve the problems and provide a multi-fold medium-high power CO 2 laser tube suitable for industrial production.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The utility model provides a high power CO 2 laser tube in many book numbers, includes gas storage tube and discharge tube, still includes two mounting structures of relative setting, and two mounting structures pass through at least one gas storage tube fixed connection, the discharge tube is connected on mounting structure.
In the multi-fold medium-high power CO 2 laser tube, the mounting structure comprises a mounting side plate made of quartz glass, the gas storage tube is made of quartz glass, and the gas storage tube and the mounting side plate are sintered into a whole.
In the multi-fold medium-high power CO 2 laser tube, the discharge tube comprises a plurality of discharge branch pipes positioned between two installation side plates, two adjacent discharge branch pipes are communicated through a connector, an electrode is arranged between the discharge branch pipes and the connector, an optical lens installation inclined plane for installing an optical lens is arranged in the connector, and the axial leads of the two adjacent discharge branch pipes are optically connected into a straight line through the optical lens.
In the multi-fold medium-high power CO 2 laser tube, two optical lens installation inclined planes are arranged in each connector, the axial lines of the discharge branch pipes are parallel to each other, the included angle between each optical lens installation inclined plane and the axial line of each discharge branch pipe is 45 degrees, and the connector is made of quartz glass and is sintered with the installation side plate into a whole.
The multi-fold medium-high power CO 2 laser tube further comprises an air return structure arranged between the discharge tube and the air storage tube, wherein one end of the air return structure is communicated with the connector, and the other end of the air return structure is communicated with the air storage tube.
In the multi-fold medium-high power CO 2 laser tube, the air return structure comprises a plurality of air return pipes, one ends of the air return pipes are communicated with the connectors, the other ends of the air return pipes are communicated with the air storage tubes, two air return pipes are respectively arranged at two ends of the discharge branch tube, the ratio of the total length of the two air return pipes to the cross section area of the air return pipes is 2-4 times of the ratio of the length of the discharge branch tube to the cross section area of the discharge branch tube, and the discharge branch tube, the connectors, the air return pipes and the air storage tubes are sequentially communicated to form an air circulation loop.
In the multi-fold medium-high power CO 2 laser tube, the discharge branch tube is also sleeved with a cooling tube sleeve, the inner side wall of the cooling tube sleeve and the outer side wall of the discharge branch tube enclose to form a cooling cavity, and a cooling medium is positioned in the cooling cavity.
Compared with the prior art, the invention has the advantages that:
1. The mounting structures on two sides of the invention are fixedly sintered into a whole through the gas storage tube, and the high-power laser tube with more folds is easier to manufacture at the same time, and the long-term stable operation of the discharge tube without deviation can be ensured, so that the long-term stable and reliable output laser power and light spots are ensured.
2. The gas storage tube, the mounting side plate and the connector are all made of quartz glass and are sintered into a whole, so that the stability is further ensured, and meanwhile, the linkage relation among the discharge branch pipes is isolated, namely, the offset cannot be accumulated among different discharge branch pipes.
3. The invention realizes the extension of the electric excitation length by designing the discharge tube into a plurality of discharge branch tubes which are optically connected into a straight line through the optical lens, thereby improving the total power of the laser tube and simultaneously ensuring the smaller overall length of the laser tube.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
FIG. 3 is a cross-sectional view of a portion of the structure of the present invention;
In the figure, a gas storage tube 1, a discharge tube 2, a mounting side plate 3, a cooling tube sleeve 4, a cooling cavity 5, a return air structure 6, a mounting structure 7, a discharge branch tube 21, a connector 22, an optical lens mounting inclined plane 23, an electrode 25 and a return air tube 61.
Detailed Description
The invention will be described in further detail with reference to the drawings and the detailed description.
As shown in figure 1, the multi-fold medium-high power CO 2 laser tube comprises a gas storage tube 1 and a discharge tube 2, and further comprises two mounting structures 7 which are oppositely arranged, wherein the two mounting structures 7 are fixedly connected through at least one gas storage tube 1, and the discharge tube 2 is connected to the mounting structures 7.
The mounting structures 7 positioned on two sides of the invention are fixedly connected into a whole through the gas storage tube 1, and the high-power laser tube with more folds is easier to manufacture at the same time, and can ensure that the discharge tube 2 stably works for a long time without deviation, thereby ensuring that the output laser power and light spots are stable and reliable for a long time.
As shown in fig. 1 and fig. 2, the discharge tube 2 includes a plurality of discharge branch pipes 21 located between two installation side plates 3, two adjacent discharge branch pipes 21 are connected by a connector 22, an electrode 25 is disposed between the discharge branch pipe 21 and the connector 22, an optical lens installation inclined plane 23 for installing an optical lens is disposed in the connector 22, and the axes of two adjacent discharge branch pipes 21 are optically connected into a straight line by the optical lens. That is, if a beam of light is emitted from one end of the discharge branch 21, it is reflected by the optical lens one or more times, and then passes through another discharge branch 21, and so on. The several discharge branches 21 are defined to be optically connected in a straight line by means of an optical lens.
Preferably, two optical lens mounting inclined planes 23 are arranged in each connector 22, the axial lines of the discharge branch pipes 21 are parallel to each other, and the included angle between each optical lens mounting inclined plane 23 and the axial line of each discharge branch pipe 21 is 45 degrees. Preferably, the mounting structure 7 includes a mounting side plate 3 made of quartz glass, the gas storage tube 1 is made of quartz glass, and the gas storage tube 1 and the mounting side plate 3 are sintered as one body. The connector 22 is made of quartz glass and the connector 22 and the mounting side plate 3 are sintered as a whole. The gas storage tube 1, the mounting side plate 3 and the connector 22 are all made of quartz glass and are sintered into a whole, so that the stability is further ensured. Meanwhile, as the connectors 22 are sintered on the mounting side plates 3, the offset of the discharge branch pipes 21 can not cause the offset of the connectors 22, namely, the linkage relation between the discharge branch pipes 21 is isolated, so that the offset can not be accumulated among different discharge branch pipes 21, and the long-term stable and reliable output laser power and light spots of the laser tube are further ensured.
As shown in fig. 2, the gas storage device further comprises a gas return structure 6 arranged between the discharge tube 2 and the gas storage tube 1, one end of the gas return structure 6 is communicated with the connector 22, and the other end of the gas return structure is communicated with the gas storage tube 1.
Specifically, the air return structure 6 includes a plurality of air return pipes 61, one ends of which are connected with the connectors 22, and the other ends of which are connected with the air storage pipe 1, two ends of the discharge branch pipe 21 are respectively provided with an air return pipe 61, the ratio of the total length of the two air return pipes 61 to the cross-sectional area of the air return pipe 61 is 2-4 times that of the discharge branch pipe 21, and the discharge branch pipe 21, the connectors 22, the air return pipe 61 and the air storage pipe 1 are sequentially connected to form an air circulation loop.
Since the laser light in the present invention is required to be generated by electrically excited gas, the electrodes 25 positioned at both ends of the discharge branch 21 are discharged in use, one end electrode 25 being a cathode, and the other end electrode 25 being an anode. During the electrical excitation process, the ambient temperature of the cathode is much higher than that of the anode, so that the air pressure at the two ends is unbalanced, and the air flows under the action of the pressure difference. Therefore, the air return pipe 61 is arranged to enable the electric branch pipe 21, the connector 22, the air return pipe 61 and the air storage pipe 1 to be sequentially communicated to form an air circulation loop, high-pressure air in the discharge branch pipe 21 flows into the air storage pipe 1, and air in the air storage pipe 1 flows into the low-pressure end in the discharge branch pipe 21, so that air circulation balance is realized. However, the gas has two flow paths from one end to the other end of the discharge branch 21, and thus, the current inevitably has two flow paths. Therefore, the ratio of the total length of the two air return pipes 61 to the cross-sectional area of the air return pipe 61 is 2-4 times that of the length of the discharge branch pipe 21 to the cross-sectional area of the discharge branch pipe 21, so that the resistance of the discharge branch pipe 21 can be ensured to be far smaller than that of the air return pipe 61 and the air storage pipe 1 on the flowing path.
As shown in fig. 3, the discharge branch pipe 21 is further sleeved with a cooling pipe sleeve 4, the inner side wall of the cooling pipe sleeve 4 and the outer side wall of the discharge branch pipe 21 enclose to form a cooling cavity 5, and a cooling medium is located in the cooling cavity 5. The cooling medium is preferably a liquid medium, which may be water, for example. When the gas in the electrically excited discharge branch 21 generates laser light, the temperature in the discharge branch 21 is increased, and the cooling medium in the cooling cavity 5 can exchange heat with the discharge branch 21, thereby reducing the temperature in the discharge branch 21.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although terms such as the gas storage tube 1, the discharge tube 2, the mounting side plate 3, the cooling jacket 4, the cooling cavity 5, the return air structure 6, the mounting structure 7, the discharge branch tube 21, the connector 22, the optical lens mounting slope 23, the electrode 25, the return air tube 61, etc. are used more herein, the possibility of using other terms is not excluded. These terms are only used to more conveniently describe and explain the nature of the invention and should be construed in a manner consistent with their spirit and scope.
Claims (5)
1. The utility model provides a high power CO2 laser tube in many book number, includes gas storage tube (1) and discharge tube (2), its characterized in that still includes two mounting structure (7) that set up relatively, two mounting structure (7) are through at least one gas storage tube (1) fixed connection, discharge tube (2) are connected on mounting structure (7), mounting structure (7) are including installing curb plate (3) made by quartz glass, gas storage tube (1) are made by quartz glass and gas storage tube (1) and install curb plate (3) sintering as an organic whole, discharge tube (2) are including a plurality of discharge branch pipes (21) that are located between two installation curb plates (3), and two adjacent discharge branch pipes (21) are linked together through connector (22), be equipped with electrode (25) between discharge branch pipe (21) and connector (22), be equipped with in connector (22) and be used for installing optical lens installation inclined plane (23) of optical lens, the axial lead of two adjacent discharge branch pipes (21) is connected into a straight line on optics through the optical lens.
2. The multi-fold medium-high power CO2 laser tube of claim 1, wherein two optical lens mounting inclined planes (23) are arranged in each connector (22), the axes of the discharge branch pipes (21) are parallel to each other, the included angle between each optical lens mounting inclined plane (23) and the axis of each discharge branch pipe (21) is 45 degrees, the connector (22) is made of quartz glass, and the connector (22) and the mounting side plate (3) are sintered into a whole.
3. The multi-fold medium-high power CO2 laser tube of claim 1, further comprising a return air structure (6) arranged between the discharge tube (2) and the gas storage tube (1), wherein one end of the return air structure (6) is communicated with the connector (22), and the other end of the return air structure is communicated with the gas storage tube (1).
4. The multi-fold medium-high power CO2 laser tube of claim 3, wherein the gas return structure (6) comprises a plurality of gas return pipes (61) with one ends communicated with the connector (22) and the other ends communicated with the gas storage tube (1), two gas return pipes (61) are respectively arranged at two ends of the discharge branch tube (21), the ratio of the total length of the two gas return pipes (61) to the cross-sectional area of the gas return pipe (61) is 2-4 times of the ratio of the length of the discharge branch tube (21) to the cross-sectional area of the discharge branch tube (21), and the discharge branch tube (21), the connector (22), the gas return pipe (61) and the gas storage tube (1) are sequentially communicated to form a gas circulation loop.
5. The multi-fold medium-high power CO2 laser tube of claim 1, wherein the discharge branch tube (21) is further sleeved with a cooling tube sleeve (4), the inner side wall of the cooling tube sleeve (4) and the outer side wall of the discharge branch tube (21) are enclosed to form a cooling cavity (5), and a cooling medium is positioned in the cooling cavity (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010884119.5A CN111786246B (en) | 2020-08-28 | 2020-08-28 | Multi-fold medium and high power CO2 laser tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010884119.5A CN111786246B (en) | 2020-08-28 | 2020-08-28 | Multi-fold medium and high power CO2 laser tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111786246A CN111786246A (en) | 2020-10-16 |
| CN111786246B true CN111786246B (en) | 2025-02-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202010884119.5A Active CN111786246B (en) | 2020-08-28 | 2020-08-28 | Multi-fold medium and high power CO2 laser tube |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212435023U (en) * | 2020-08-28 | 2021-01-29 | 嘉兴华研激光科技有限公司 | Multi-fold medium and high power CO2 laser tube |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1245607A (en) * | 1968-12-18 | 1971-09-08 | Elliott Brothers London Ltd | Improvements relating to lasers |
| US4233568A (en) * | 1975-02-24 | 1980-11-11 | Xerox Corporation | Laser tube mirror assembly |
| CN2762396Y (en) * | 2004-12-30 | 2006-03-01 | 周迅 | Middle power carbon dioxide laser tube |
| CN2904398Y (en) * | 2006-05-16 | 2007-05-23 | 徐海军 | Quartz bound type carbon dioxide laser |
| CN100423386C (en) * | 2006-09-25 | 2008-10-01 | 周迅 | Connected carbon-dioxide laser tube |
| CN201408911Y (en) * | 2009-05-15 | 2010-02-17 | 吉林省永利激光科技有限公司 | One-tube multi-core carbon dioxide laser tube |
| CN201478683U (en) * | 2009-09-09 | 2010-05-19 | 南通卓锐激光科技有限公司 | Folding and sealed-off type carbon dioxide laser with separated gas storage jacket |
| CN202523965U (en) * | 2012-02-15 | 2012-11-07 | 杭州新投科技有限公司 | Support frame structure for gas laser tube |
| CN203135198U (en) * | 2013-01-22 | 2013-08-14 | 江苏天久激光科技有限公司 | Full-glass structure double-core carbon dioxide laser tube |
| CN106253034A (en) * | 2016-09-23 | 2016-12-21 | 杭州华镭激光设备有限公司 | A kind of big pipe multi-core type CO 2 laser tube |
| CN206004128U (en) * | 2016-09-23 | 2017-03-08 | 杭州华镭激光设备有限公司 | A kind of big pipe multi-core type CO 2 laser tube |
-
2020
- 2020-08-28 CN CN202010884119.5A patent/CN111786246B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212435023U (en) * | 2020-08-28 | 2021-01-29 | 嘉兴华研激光科技有限公司 | Multi-fold medium and high power CO2 laser tube |
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| CN111786246A (en) | 2020-10-16 |
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Effective date of registration: 20220314 Address after: 325200 south first floor, room 101, building 4, Jiangnan standard plant, No. 699, Minxin Road, Feiyun street, Ruian City, Wenzhou City, Zhejiang Province Applicant after: Ruian Huayan Laser Technology Co.,Ltd. Address before: Room 201-1, building 36, 37, 40, Hangzhou bay new economic Park, Jiaxing, Zhejiang 314000 Applicant before: JIAXING HUAYAN LASER TECHNOLOGY Co.,Ltd. |
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