CN100370657C - Laser cathode fixing device - Google Patents
Laser cathode fixing device Download PDFInfo
- Publication number
- CN100370657C CN100370657C CNB2006100183987A CN200610018398A CN100370657C CN 100370657 C CN100370657 C CN 100370657C CN B2006100183987 A CNB2006100183987 A CN B2006100183987A CN 200610018398 A CN200610018398 A CN 200610018398A CN 100370657 C CN100370657 C CN 100370657C
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- China
- Prior art keywords
- cathode
- discharge tube
- negative electrode
- supporting device
- glass tube
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Abstract
The present invention relates to a laser cathode fixing device which comprises a cathode supporting device, a discharge tube and an air return glass tube, wherein a small pore end of the cathode is coaxially connected with the discharge tube; a big pore end of the cathode is connected with the air return glass tube. The present invention is characterized in that the outer surface of the small pore end of the cathode is a convex spherical surface which matches with a hole of a concave spherical surface in the cathode supporting device; the cathode supporting device is fixed in a light bridge. The device has the advantages of simple structure and convenient installation and adjustment. When radial displacement of the big pore end of the cathode occurs owing to the imprecision of the air return glass tube, the cathode can rotate in the cahtode supporting device, and meanwhile, the radial displacement of the discharge tube can not occur for the coincidence of the center of the sphere and the center of the discharge tube. The present invention ensures the position precision of the discharge tube, and meanwhile, can not lead to the stress deformation of the cathode supporting device caused by the generation of additional force of the chathode supporting device.
Description
Technical field
The present invention relates to laser, relate in particular to a kind of laser cathode fixing device.
Background technology
In vertical stream CO2 laser, the glass tube of discharge needs strictness coaxial with the light path that laser passes through, otherwise can cause that lasing efficiency descends or beam quality descends, and causes the laser scaling loss glass tube of diffraction and near other parts the light path when serious.The return-air glass tube is the five-way of a complexity, and six is logical, even 10 logical structures, can only make by hand usually, guarantees that high-precision size is very difficult.When muffler made the big nose end of negative electrode produce radial displacement because of precision inadequately, discharge tube also can produce radial displacement, made the positional precision of discharge tube be difficult to guarantee.Also can produce the stress deformation that additional force causes supporting simultaneously to supporting.
Summary of the invention
The objective of the invention is in order to solve the deficiency that the above-mentioned background technology exists, propose a kind ofly under the bigger situation of the trueness error of return-air glass tube, still keep the laser cathode fixing device of discharge tube spatial accuracy.
For achieving the above object, the present invention adopts following technical scheme: a kind of laser cathode fixing device, comprise cathode supporting, discharge tube, return-air glass tube, the small bore end of described negative electrode links to each other with discharge tube is coaxial, the big nose end of negative electrode links to each other with the return-air glass tube, the outer surface that it is characterized in that the small bore end of described negative electrode is protruding sphere, matches with the concave spherical surface hole in the cathode supporting, and cathode supporting is fixed in the light bridge.
The centre of sphere of the protruding sphere of described negative electrode small bore end preferably is positioned on the discharge tube axis.
Can be provided with the O RunddichtringO between the little internal surface of hole of described negative electrode and the discharge tube outer surface, this residing plane of O RunddichtringO preferably overlaps with the centre of sphere of the protruding sphere of negative electrode small bore end.
Concave spherical surface hole in described cathode supporting can be spliced to form by two parts.
The present invention is simple in structure, install easy to adjust, when muffler makes the big nose end of negative electrode produce radial displacement because of precision inadequately, negative electrode can rotate in supporting, at this moment overlap with the discharge tube center because of the centre of sphere, discharge tube does not have radial displacement, has guaranteed the positional precision of discharge tube, can not produce the stress deformation that additional force causes supporting to supporting simultaneously yet.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is single cathode fixing device schematic diagram.
Fig. 3 is the left view of Fig. 2.
Fig. 4 is that the return-air glass tube has state diagram of the present invention under the error.
Embodiment
Referring to figs. 1 through Fig. 3, the present invention includes negative electrode 1, cathode supporting 2, discharge tube 3, return-air glass tube 4, by 5 coaxial linking to each other of O type circle, the big nose end of negative electrode 1 links to each other by 6 sealings of O type circle with return-air glass tube 4, with the assurance air-tightness between the aperture of described negative electrode 1 and the discharge tube.The outer surface of the small bore end of described negative electrode 1 is protruding sphere 9, and it matches with the concave spherical surface hole in the cathode supporting 2, and cathode supporting 2 is screwed in stable light bridge 7.Concave spherical surface hole in described cathode supporting 2 can be spliced to form by two parts, and these two parts are linked to each other by screw 8.
The present invention can reach under the bigger situation of the trueness error that makes return-air glass tube 4, still keeps the spatial accuracy of discharge tube 3, referring to Fig. 4.When return-air glass tube 4 makes negative electrode 1 big nose end produce radial displacement because of precision inadequately, negative electrode can rotate in cathode supporting 2, at this moment overlap with the discharge tube center because of the centre of sphere 10, discharge tube does not have radial displacement, guarantee the positional precision of discharge tube, also can target supporting 2 not produce the stress deformation that additional force causes supporting simultaneously.
Claims (3)
1. laser cathode fixing device, comprise cathode supporting, discharge tube, return-air glass tube, the small bore end of described negative electrode links to each other with discharge tube is coaxial, the big nose end of negative electrode links to each other with the return-air glass tube, the outer surface that it is characterized in that the small bore end of described negative electrode is protruding sphere, match with the concave spherical surface hole in the cathode supporting, cathode supporting is fixed in the light bridge, and the centre of sphere of the protruding sphere of described negative electrode small bore end is positioned on the discharge tube axis.
2. according to the described laser cathode fixing device of claim 1, it is characterized in that being provided with the O RunddichtringO between the little internal surface of hole of described negative electrode and the discharge tube outer surface, this residing plane of O RunddichtringO overlaps with the centre of sphere of the protruding sphere of negative electrode small bore end.
3. according to claim 1 or 2 described laser cathode fixing devices, it is characterized in that the concave spherical surface hole in the described cathode supporting is spliced to form by two parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100183987A CN100370657C (en) | 2006-02-23 | 2006-02-23 | Laser cathode fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100183987A CN100370657C (en) | 2006-02-23 | 2006-02-23 | Laser cathode fixing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1812212A CN1812212A (en) | 2006-08-02 |
| CN100370657C true CN100370657C (en) | 2008-02-20 |
Family
ID=36844950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100183987A Expired - Fee Related CN100370657C (en) | 2006-02-23 | 2006-02-23 | Laser cathode fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100370657C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102761047B (en) * | 2012-07-30 | 2013-09-25 | 中国科学院光电研究院 | Electrode mechanism of discharge cavity of gas laser |
| CN104852256B (en) * | 2015-04-30 | 2017-08-04 | 金陵科技学院 | A kind of axle flows CO soon2Laser electrode seat fixing device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4730334A (en) * | 1987-01-05 | 1988-03-08 | Collins George J | Ultraviolet metal ion laser |
| US4807243A (en) * | 1988-05-12 | 1989-02-21 | Spectra-Physics, Inc. | Two-piece laser cathode assembly |
| US5268919A (en) * | 1991-03-05 | 1993-12-07 | Matsushita Electric Industrial Co., Ltd. | Gas laser oscillating device |
| CN2317561Y (en) * | 1997-10-17 | 1999-05-05 | 中国科学院等离子体物理研究所 | One thousand watt radio frequency exciting fast axial flow carbon dioxide laser |
| CN1328365A (en) * | 2000-06-13 | 2001-12-26 | 四川大学 | Method for building axial-flow CO laser and its device |
-
2006
- 2006-02-23 CN CNB2006100183987A patent/CN100370657C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4730334A (en) * | 1987-01-05 | 1988-03-08 | Collins George J | Ultraviolet metal ion laser |
| US4807243A (en) * | 1988-05-12 | 1989-02-21 | Spectra-Physics, Inc. | Two-piece laser cathode assembly |
| US5268919A (en) * | 1991-03-05 | 1993-12-07 | Matsushita Electric Industrial Co., Ltd. | Gas laser oscillating device |
| CN2317561Y (en) * | 1997-10-17 | 1999-05-05 | 中国科学院等离子体物理研究所 | One thousand watt radio frequency exciting fast axial flow carbon dioxide laser |
| CN1328365A (en) * | 2000-06-13 | 2001-12-26 | 四川大学 | Method for building axial-flow CO laser and its device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1812212A (en) | 2006-08-02 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080220 Termination date: 20100223 |