CN115846856A - Laser processing system of anti returning light - Google Patents
Laser processing system of anti returning light Download PDFInfo
- Publication number
- CN115846856A CN115846856A CN202211709364.8A CN202211709364A CN115846856A CN 115846856 A CN115846856 A CN 115846856A CN 202211709364 A CN202211709364 A CN 202211709364A CN 115846856 A CN115846856 A CN 115846856A
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- Prior art keywords
- sleeve
- laser
- processing system
- qbh
- laser processing
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Links
- 230000001681 protective effect Effects 0.000 claims abstract description 25
- 239000010453 quartz Substances 0.000 claims abstract description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052802 copper Inorganic materials 0.000 claims abstract description 12
- 239000010949 copper Substances 0.000 claims abstract description 12
- 239000011521 glass Substances 0.000 claims description 8
- 238000003754 machining Methods 0.000 claims description 7
- 239000012528 membrane Substances 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 6
- 238000002310 reflectometry Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 239000000779 smoke Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Laser Beam Processing (AREA)
Abstract
The laser processing system comprises a processing main body and a collimating mirror adjusting mechanism, wherein the processing main body comprises a QBH output head, a protective lens I, a collimating mirror, a focusing mirror, a protective lens II and a nozzle for laser emission from left to right, wherein one surface, facing the nozzle, of the protective lens I is provided with a high reflection film, the high reflection film is annular, and the center of the annular high reflection film is a laser emission port of the QBH output head; therefore, after laser is reflected by a high-reflectivity material and enters an exit port of a laser processing system, the laser irradiates on the plated high-reflection film and is reflected by the high-reflection film, so that the laser cannot directly act on a copper protective sleeve of the QBH joint, the quartz end cap is prevented from being burnt, and the effect of light return resistance is realized.
Description
Technical Field
The invention relates to the technical field of optics, in particular to a laser processing system capable of resisting return light.
Background
In laser machining, such as welding, cladding or cutting, it is often the case that QBH is burned if the object of the machining is a high reflectivity material such as copper, aluminum or stainless steel. The reason is that the surface of the high-reflectivity material reflects the laser back, and part of the reflected laser enters the laser emergent hole; since the reflection is not a strict mirror reflection, the laser entering the exit hole may not return along the original path but may propagate in a direction deviating from the fiber core, so that the reflected laser will irradiate on the copper protective sleeve of the QBH to generate smoke, and the smoke is attached to the quartz end cap of the QBH to burn the smoke.
The mode of solving this problem at present often gets the copper protective sheath before processing high reflectivity material and drops earlier, because QBH's quartz end cap surface coating film, so even the laser direct irradiation who returns on quartz end cap surface, can not cause its damage yet, but the problem that this brought is: the quartz end cap is exposed and easy to be damaged.
Disclosure of Invention
The invention aims to solve the technical problem of providing a laser processing system for resisting return light.
The technical scheme adopted by the invention to solve the technical problem is as follows:
the utility model provides an anti laser beam machining system that returns light, includes processing main part and collimating mirror adjustment mechanism, the processing main part includes from a left side to the QBH output head on the right side, protective glass piece I, collimating mirror, focusing mirror, protective glass piece II and the nozzle that supplies laser outgoing, wherein, protective glass piece I orientation the one side of nozzle is plated and is equipped with the high anti-membrane, the high anti-membrane is the annular, and the center of the high anti-membrane of annular does the laser outgoing port of QBH output head.
In one embodiment, the collimating mirror adjusting mechanism comprises a large sleeve and a small sleeve, and the small sleeve is fixedly connected with the collimating mirror.
In one embodiment, the small sleeve is externally provided with external threads, the large sleeve is internally provided with internal threads, and the collimating mirror is enabled to do linear motion along the axial direction of the collimating mirror through threaded matching of the small sleeve and the large sleeve.
In one embodiment, a water cooling device is provided on the outside of the processing head body.
In an embodiment, the outside of processing head main part is equipped with focusing mirror adjustment mechanism, focusing mirror adjustment mechanism includes sleeve I and sleeve II, sleeve I with focusing mirror fixed connection.
In one embodiment, the sleeve I is externally provided with external threads, and the sleeve II is internally provided with internal threads; the external thread of the sleeve I is in threaded connection with the internal thread of the sleeve II, so that the focusing mirror moves linearly along the axial direction of the focusing mirror.
In one embodiment, the processing head body is further provided with an air blowing pipe.
In one embodiment, the QBH output stud comprises a QBH copper protective sleeve and a quartz end cap, the inner diameter of the annular high reflective film being less than or equal to the diameter of the QBH copper protective sleeve and greater than the diameter of the quartz end cap.
Compared with the prior art, the invention has the following beneficial effects:
1. after laser is reflected by a high-reflectivity material and enters an exit port of a laser processing system, the laser irradiates on a high-reflection film and is reflected by the high-reflection film, so that the laser cannot directly act on a copper protective sleeve of a QBH joint, the quartz end cap is prevented from being burnt, and the effect of preventing light return is realized.
2. The laser processing system for resisting return light can protect the QBH output head without carrying out structural adjustment on the existing processing head, and has the advantages of simple and easy implementation and low cost.
Drawings
FIG. 1 is a schematic structural view of example 1 of the present invention;
fig. 2 is a schematic cross-sectional structure diagram of embodiment 1 of the present invention.
In the figure: 5. high reflection film, 11, QBH output head, 12, protective glass I, 13, collimating mirror, 14, focusing mirror, 15, protective glass II, 16, nozzle, 21, big sleeve, 22, little sleeve, 25, sleeve I, 26, sleeve II.
Detailed Description
The invention is further explained with reference to the drawings and the embodiments.
Example 1
As shown in fig. 1-2, the present embodiment includes a processing main body and a collimator lens adjusting mechanism, the processing main body includes a QBH output head 11, a protective lens i 12, a collimator lens 13, a focusing lens 14, a protective lens ii 15 and a nozzle 16 for emitting laser from left to right, wherein one surface of the protective lens i 12 facing the nozzle 16 is plated with a high reflective film 5, the high reflective film 5 is ring-shaped, the center of the ring-shaped high reflective film 5 is a laser emission port of the QBH output head 11, in the present embodiment, the QBH output head 11 includes a QBH copper protective sleeve and a quartz end cap (not shown in the figure), and an inner diameter of the ring-shaped high reflective film 5 is smaller than or equal to a diameter of the QBH copper protective sleeve and larger than a diameter of the quartz end cap;
the collimating mirror adjusting mechanism comprises a large sleeve 21 and a small sleeve 22, the small sleeve 22 is fixedly connected with the collimating mirror 13, external threads are arranged outside the small sleeve 22, internal threads are arranged inside the large sleeve 21, and the collimating mirror 13 is in linear motion along the axial direction of the collimating mirror 13 through the threaded matching of the small sleeve 22 and the large sleeve 21.
A focusing mirror adjusting mechanism is arranged on the outer side of the machining head main body and comprises a sleeve I25 and a sleeve II 26, and the sleeve I25 is fixedly connected with the focusing mirror 14; an external thread is arranged outside the sleeve I25, and an internal thread is arranged inside the sleeve II 26; the external thread of the sleeve I25 is in threaded connection with the internal thread of the sleeve II 26, so that the focusing mirror 14 moves linearly along the axial direction of the focusing mirror 14.
In addition, the processing head main body is also provided with an air blowing pipe; the outer side of the processing head main body is provided with a water cooling device.
Therefore, according to the laser processing system for resisting return light, after laser is reflected by a high-reflectivity material and enters the exit port of the laser processing system, the laser irradiates the high-reflection film and is reflected by the high-reflection film, and the laser cannot directly act on the copper protective sleeve of the QBH joint, so that the quartz end cap is prevented from being burnt, and the effect of resisting return light is realized.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the technical solutions of the present invention have been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions described in the foregoing embodiments can be modified or some technical features can be replaced equally; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. The utility model provides an anti laser beam machining system that returns light which characterized in that: including processing main part and collimating mirror adjustment mechanism, the processing main part includes from a left side to the QBH output head (11) of right side, protective glass piece I (12), collimating mirror (13), focusing mirror (14), protective glass piece II (15) and supply nozzle (16) of laser outgoing, wherein, protective glass piece I (12) orientation the one side of nozzle (16) is plated and is equipped with high anti-membrane (5), high anti-membrane (5) are the annular, and the center of the high anti-membrane (5) of annular does the laser outgoing port of QBH output head (11).
2. The laser processing system of claim 1, wherein: the collimating mirror adjusting mechanism comprises a large sleeve (21) and a small sleeve (22), and the small sleeve (22) is fixedly connected with the collimating mirror (13).
3. The laser processing system of claim 2, wherein: the external screw thread is arranged on the outer portion of the small sleeve (22), the internal screw thread is arranged on the inner portion of the large sleeve (21), and the collimating mirror (13) is enabled to do linear motion along the axial direction of the collimating mirror (13) through the threaded matching of the small sleeve (22) and the large sleeve (21).
4. The laser processing system of claim 3, wherein: and a water cooling device is arranged on the outer side of the machining head main body.
5. The laser processing system of claim 4, wherein: the outside of processing head main part (10) is equipped with focusing mirror adjustment mechanism, focusing mirror adjustment mechanism includes sleeve I (25) and sleeve II (26), sleeve I (25) with focusing mirror (14) fixed connection.
6. The laser processing system of claim 5, wherein: the outer part of the sleeve I (25) is provided with an external thread, and the inner part of the sleeve II (26) is provided with an internal thread; the external thread of the sleeve I (25) is in threaded connection with the internal thread of the sleeve II (26), so that the focusing mirror (14) moves linearly along the axial direction of the focusing mirror (14).
7. The laser processing system of claim 6, wherein: and the machining head main body (10) is also provided with an air blowing pipe.
8. The laser processing system of any of claims 1 to 7, wherein: the QBH output head (11) comprises a QBH copper protective sleeve and a quartz end cap, and the inner diameter of the annular high-reflection film (5) is smaller than or equal to the diameter of the QBH copper protective sleeve and larger than the diameter of the quartz end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211709364.8A CN115846856A (en) | 2022-12-29 | 2022-12-29 | Laser processing system of anti returning light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211709364.8A CN115846856A (en) | 2022-12-29 | 2022-12-29 | Laser processing system of anti returning light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115846856A true CN115846856A (en) | 2023-03-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211709364.8A Pending CN115846856A (en) | 2022-12-29 | 2022-12-29 | Laser processing system of anti returning light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115846856A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116742448A (en) * | 2023-08-14 | 2023-09-12 | 四川中久大光科技有限公司 | Gao Huifan-resistant laser output head and laser |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0668006U (en) * | 1993-02-22 | 1994-09-22 | 川崎重工業株式会社 | Optical fiber end face protector for high power lasers |
| CN102837127A (en) * | 2011-06-22 | 2012-12-26 | 株式会社东芝 | Laser irradiation apparatus and laser irradiation method |
| CN206643498U (en) * | 2017-01-11 | 2017-11-17 | 深圳迪能激光科技有限公司 | Focus lamp adjustable laser cutting head and laser cutting machine |
| CN206732375U (en) * | 2017-03-16 | 2017-12-12 | 无锡斯塔克激光装备制造有限公司 | A kind of slave laser cutting head |
| CN208127612U (en) * | 2018-05-23 | 2018-11-20 | 福州腾景光电科技有限公司 | A kind of high power industrial lasers isolator fused quartz end cap connector |
| CN210937653U (en) * | 2019-11-29 | 2020-07-07 | 深圳镭锳激光科技有限公司 | Anti-reflection adjustable light beam spherical laser emitting head |
-
2022
- 2022-12-29 CN CN202211709364.8A patent/CN115846856A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0668006U (en) * | 1993-02-22 | 1994-09-22 | 川崎重工業株式会社 | Optical fiber end face protector for high power lasers |
| CN102837127A (en) * | 2011-06-22 | 2012-12-26 | 株式会社东芝 | Laser irradiation apparatus and laser irradiation method |
| CN206643498U (en) * | 2017-01-11 | 2017-11-17 | 深圳迪能激光科技有限公司 | Focus lamp adjustable laser cutting head and laser cutting machine |
| CN206732375U (en) * | 2017-03-16 | 2017-12-12 | 无锡斯塔克激光装备制造有限公司 | A kind of slave laser cutting head |
| CN208127612U (en) * | 2018-05-23 | 2018-11-20 | 福州腾景光电科技有限公司 | A kind of high power industrial lasers isolator fused quartz end cap connector |
| CN210937653U (en) * | 2019-11-29 | 2020-07-07 | 深圳镭锳激光科技有限公司 | Anti-reflection adjustable light beam spherical laser emitting head |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116742448A (en) * | 2023-08-14 | 2023-09-12 | 四川中久大光科技有限公司 | Gao Huifan-resistant laser output head and laser |
| CN116742448B (en) * | 2023-08-14 | 2023-11-21 | 四川中久大光科技有限公司 | Gao Huifan-resistant laser output head and laser |
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