CN110923701A - Laser cladding device for inner wall of deep blind hole - Google Patents
Laser cladding device for inner wall of deep blind hole Download PDFInfo
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- CN110923701A CN110923701A CN201911256615.XA CN201911256615A CN110923701A CN 110923701 A CN110923701 A CN 110923701A CN 201911256615 A CN201911256615 A CN 201911256615A CN 110923701 A CN110923701 A CN 110923701A
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- laser
- blind hole
- wall
- mirror
- deep blind
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- 238000004372 laser cladding Methods 0.000 title claims abstract description 37
- 230000003287 optical effect Effects 0.000 claims abstract description 32
- 230000001681 protective effect Effects 0.000 claims abstract description 25
- 239000013307 optical fiber Substances 0.000 claims abstract description 15
- 239000000835 fiber Substances 0.000 claims abstract description 9
- 239000004065 semiconductor Substances 0.000 claims description 10
- 239000011521 glass Substances 0.000 claims description 6
- 238000005253 cladding Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
Abstract
The invention belongs to a laser cladding technology, and provides a deep blind hole inner wall laser cladding device, which solves the problems that the existing laser cladding efficiency is low, and the laser cladding processing cannot be carried out or is difficult to carry out on the inner wall of the root part of a deep blind hole. The device comprises a fiber laser, a collimating lens group, an integrating lens, an optical wedge and a protective lens; the optical fiber laser is used for outputting a laser beam with a divergence angle; the collimating mirror group is positioned in an emergent light path of the fiber laser and is used for collimating a laser beam with a divergence angle output by the fiber laser into a parallel circular beam and transmitting the parallel circular beam to the integrating mirror; the integrating mirror is used for reflecting the parallel round light beams, and light spots of the reflected light beams at a molten pool are rectangular light spots; the optical wedge is positioned in an emergent light path of the integrating mirror and is used for deflecting a light beam to the inner wall of the root part of the deep blind hole to be processed; the protective lens is positioned in the emergent light path of the optical wedge.
Description
Technical Field
The invention belongs to a laser cladding technology, and particularly relates to a laser cladding device for the inner wall of a deep blind hole.
Background
The laser cladding technology is an advanced manufacturing technology combining a laser technology and a processing technology, and develops rapidly in recent years. As an advanced surface modification technology, the method is widely applied to surface modification of materials and repair of failed parts, solves a plurality of problems in engineering practice, and creates huge economic benefits in the engineering practice.
In common laser processing production, laser cladding of small-diameter inner holes and deep holes is limited by space, and the wide application of laser cladding processing is hindered. For example, in publication No. CN 204825050U, the patent name is a laser cladding head for inner bore, and in publication No. CN206337314U, the patent name is a deep hole laser cladding head, the processing spot for cladding the inner wall is circular, the cladding efficiency is very low, and the inner wall of the root of the deep blind hole can not be or is difficult to be processed by laser cladding.
Disclosure of Invention
The invention provides a laser cladding device for the inner wall of a deep blind hole, aiming at solving the technical problems that the existing laser cladding device is low in efficiency and the inner wall of the root of the deep blind hole cannot be or is difficult to be subjected to laser cladding processing.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
a deep blind hole inner wall laser cladding device is characterized in that: the optical fiber laser comprises an optical fiber laser, a collimating lens group, an integrating lens, an optical wedge and a protective lens; the optical fiber laser is used for outputting a laser beam with a divergence angle; the collimating mirror group is positioned in an emergent light path of the fiber laser and is used for collimating a laser beam with a divergence angle output by the fiber laser into a parallel circular beam and transmitting the parallel circular beam to the integrating mirror; the integrating mirror is used for reflecting the parallel round light beams, and light spots of the reflected light beams at a molten pool are rectangular light spots; the optical wedge is positioned in an emergent light path of the integrating mirror and is used for deflecting a light beam to the inner wall of the root part of the deep blind hole to be processed; the protective lens is positioned in the emergent light path of the optical wedge.
Further, the collimator lens group comprises one or more lenses.
Furthermore, the deflection angle of the optical wedge is 10-20 degrees.
Further, the integrating mirror is a strip integrating mirror.
Further, the protective lens is protective glass.
The invention also provides a deep blind hole inner wall laser cladding device, which is characterized in that: the optical fiber laser comprises an optical fiber output semiconductor laser, a collimating lens group, an integrating lens, an optical wedge and a protective lens; the optical fiber output semiconductor laser is used for outputting a laser beam with a divergence angle; the collimating lens group is positioned in an emergent light path of the semiconductor laser and is used for collimating laser beams with divergence angles output by the semiconductor laser into parallel circular light beams and transmitting the parallel circular light beams to the integrating mirror; the integrating mirror is used for reflecting the parallel round light beams, and light spots of the reflected light beams at a molten pool are rectangular light spots; the optical wedge is positioned in an emergent light path of the integrating mirror and is used for deflecting a light beam to the inner wall of the root part of the deep blind hole to be processed; the protective lens is positioned in the emergent light path of the optical wedge.
Further, the collimator lens group comprises one or more lenses.
Furthermore, the deflection angle of the optical wedge is 10-20 degrees.
Further, the integrating mirror is a strip integrating mirror.
Further, the protective lens is protective glass.
Compared with the prior art, the invention has the advantages that:
the deep blind hole inner wall laser cladding device collimates the light beam through the collimating mirror, is suitable for the laser cladding operation of the inner wall of a cylindrical object, can carry out the laser cladding operation on the deep inner wall of a hole, and can process the depth of the inner hole to be 3 m; the output head, the collimating lens group, the integrating lens, the optical wedge and the protective lens of the device extend into the inner hole, the radial width is small, and the inner hole with the diameter smaller than 180mm can be processed; the laser cladding processing is carried out on the inner wall by using the rectangular light spot, the efficiency is greatly improved compared with that of a circular light spot, the light beam is deflected by the optical wedge, the direction of the light beam is changed, the cladding processing can be carried out on the inner wall of the root of the deep blind hole, and the problem that the inner wall of the root of the deep blind hole cannot be processed in the previous laser cladding process of the inner wall of the cylinder is changed.
Drawings
Fig. 1 is an optical structure schematic diagram of the deep blind hole inner wall laser cladding device of the invention.
Wherein the reference numbers are as follows:
1-fiber laser, 2-collimating lens group, 3-integrating lens, 4-optical wedge, 5-protective lens and 6-inner wall of root of deep blind hole.
Detailed Description
The invention is described in further detail below with reference to the figures and specific embodiments.
Example one
As shown in fig. 1, a laser cladding device for inner wall of deep blind hole comprises a fiber laser 1 having an optical fiber interface and a laser beam outlet, a collimating lens group 2, an integrator lens 3, an optical wedge 4 and a protective lens 5 sequentially arranged along the light beam propagation direction of the fiber laser 1, wherein the laser beam emitted by the laser and having a certain angle is collimated into a parallel circular light beam by the collimating lens group 2, and the collimating lens group 2 can be a lens or a group of lenses; parallel circular light beam reflects through integrator mirror 3, the facula at the molten bath department becomes the rectangle facula that needs after the reflection, and integrator mirror 3 reflects the propagation direction of back light beam and deflects 90 back, through optical wedge 4 with the light beam whole certain angle of deflection, reach the root inner wall 6 (the working face) of the deep blind hole of processing, thereby carry out complete cladding processing to the inner wall of deep blind hole, protection lens 5 is located below optical wedge 4 (in the emergent light path), prevent smoke and dust and the splash that the course of working produced, the pollution to the optical member, and then influence cladding effect.
The deflection angle of the optical wedge 4 is 10-20 degrees; the integrating mirror 3 is a belt-shaped integrating mirror and converts the circular light beam passing through the collimating mirror group 2 into a rectangular light spot of a molten pool; the protective lens 5 is protective glass.
Example two
As shown in fig. 1, a laser cladding device for inner walls of deep blind holes comprises a semiconductor laser with an optical fiber output, a collimating lens group 2, an integrating mirror 3, an optical wedge 4 and a protective lens 5 which are sequentially arranged along the light beam propagation direction of the semiconductor laser, wherein a laser beam with a certain angle emitted by the laser is collimated into a parallel circular light beam by the collimating lens group 2, and the collimating lens group 2 can be a lens or a group of lenses; parallel circular light beam reflects through integrator mirror 3, the facula at the molten bath department becomes the rectangle facula that needs after the reflection, and integrator mirror 3 reflects the propagation direction of back light beam and deflects 90 back, through optical wedge 4 with the light beam whole certain angle of deflection, reach the root inner wall 6 (the working face) of the deep blind hole of processing, thereby carry out complete cladding processing to the inner wall of deep blind hole, protection lens 5 is located below optical wedge 4 (in the emergent light path), prevent smoke and dust and the splash that the course of working produced, the pollution to the optical member, and then influence cladding effect.
The deflection angle of the optical wedge 4 is 10-20 degrees; the integrating mirror 3 is a belt-shaped integrating mirror and converts the circular light beam passing through the collimating mirror group 2 into a rectangular light spot of a molten pool; the protective lens 5 is protective glass.
The above description is only for the purpose of describing the preferred embodiments of the present invention and does not limit the technical solutions of the present invention, and any known modifications made by those skilled in the art based on the main technical concepts of the present invention fall within the technical scope of the present invention.
Claims (10)
1. The utility model provides a dark blind hole inner wall laser cladding device which characterized in that: comprises a fiber laser (1), a collimating mirror group (2), an integrating mirror (3), an optical wedge (4) and a protective lens (5);
the optical fiber laser (1) is used for outputting a laser beam with a divergence angle;
the collimating mirror group (2) is positioned in an emergent light path of the optical fiber laser (1) and is used for collimating a laser beam with a divergence angle output by the optical fiber laser (1) into a parallel circular beam and transmitting the parallel circular beam to the integrating mirror (3);
the integrating mirror (3) is used for reflecting the parallel round light beams, and light spots of the reflected light beams at a molten pool are rectangular light spots;
the optical wedge (4) is positioned in an emergent light path of the integrating mirror (3) and is used for deflecting a light beam to the inner wall (6) of the root of the deep blind hole to be processed;
the protective lens (5) is positioned in an emergent light path of the optical wedge (4).
2. The deep blind hole inner wall laser cladding device of claim 1, characterized in that: the collimating lens group (2) comprises one or more lenses.
3. The deep blind hole inner wall laser cladding device of claim 1 or 2, characterized in that: the deflection angle of the optical wedge (4) is 10-20 degrees.
4. The deep blind hole inner wall laser cladding device of claim 1, characterized in that: the integrating mirror (3) is a strip-shaped integrating mirror.
5. The deep blind hole inner wall laser cladding device of claim 1, characterized in that: the protective lens (5) is protective glass.
6. The utility model provides a dark blind hole inner wall laser cladding device which characterized in that: the optical fiber laser device comprises an optical fiber output semiconductor laser, a collimating lens group (2), an integrating lens (3), an optical wedge (4) and a protective lens (5);
the optical fiber output semiconductor laser is used for outputting a laser beam with a divergence angle;
the collimating lens group (2) is positioned in an emergent light path of the semiconductor laser and is used for collimating laser beams with divergence angles output by the semiconductor laser into parallel circular beams and transmitting the beams to the integrating mirror (3);
the integrating mirror (3) is used for reflecting the parallel round light beams, and light spots of the reflected light beams at a molten pool are rectangular light spots;
the optical wedge (4) is positioned in an emergent light path of the integrating mirror (3) and is used for deflecting a light beam to the inner wall (6) of the root of the deep blind hole to be processed;
the protective lens (5) is positioned in an emergent light path of the optical wedge (4).
7. The deep blind hole inner wall laser cladding device of claim 6, characterized in that: the collimating lens group (2) comprises one or more lenses.
8. The deep blind hole inner wall laser cladding device of claim 6 or 7, characterized in that: the deflection angle of the optical wedge (4) is 10-20 degrees.
9. The deep blind hole inner wall laser cladding device of claim 6, characterized in that: the integrating mirror (3) is a strip-shaped integrating mirror.
10. The deep blind hole inner wall laser cladding device of claim 6, characterized in that: the protective lens (5) is protective glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911256615.XA CN110923701A (en) | 2019-12-05 | 2019-12-05 | Laser cladding device for inner wall of deep blind hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911256615.XA CN110923701A (en) | 2019-12-05 | 2019-12-05 | Laser cladding device for inner wall of deep blind hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110923701A true CN110923701A (en) | 2020-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911256615.XA Pending CN110923701A (en) | 2019-12-05 | 2019-12-05 | Laser cladding device for inner wall of deep blind hole |
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| CN (1) | CN110923701A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1712775A1 (en) * | 1990-01-12 | 1992-02-15 | Московский станкоинструментальный институт | Optical unit to measure the linear inner dimensions |
| US20070273798A1 (en) * | 2006-05-26 | 2007-11-29 | Silverstein Barry D | High efficiency digital cinema projection system with increased etendue |
| WO2011129922A2 (en) * | 2010-04-16 | 2011-10-20 | Metal Improvement Company Llc | Polarization compensated beam splitter diagnostic system for high power laser systems |
| CN109576699A (en) * | 2018-12-27 | 2019-04-05 | 西安必盛激光科技有限公司 | A kind of laser inner hole cladding equipment and gravity powder feeder |
| CN109706447A (en) * | 2019-01-18 | 2019-05-03 | 南京科莱汀激光科技有限公司 | A kind of inner hole cladding laser system based on reflective band-like integral mirror |
| CN209636323U (en) * | 2018-12-27 | 2019-11-15 | 西安必盛激光科技有限公司 | A kind of laser inner hole cladding equipment and gravity powder feeder |
| CN211713201U (en) * | 2019-12-05 | 2020-10-20 | 西安必盛激光科技有限公司 | Laser cladding device for inner wall of deep blind hole |
-
2019
- 2019-12-05 CN CN201911256615.XA patent/CN110923701A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1712775A1 (en) * | 1990-01-12 | 1992-02-15 | Московский станкоинструментальный институт | Optical unit to measure the linear inner dimensions |
| US20070273798A1 (en) * | 2006-05-26 | 2007-11-29 | Silverstein Barry D | High efficiency digital cinema projection system with increased etendue |
| WO2011129922A2 (en) * | 2010-04-16 | 2011-10-20 | Metal Improvement Company Llc | Polarization compensated beam splitter diagnostic system for high power laser systems |
| CN109576699A (en) * | 2018-12-27 | 2019-04-05 | 西安必盛激光科技有限公司 | A kind of laser inner hole cladding equipment and gravity powder feeder |
| CN209636323U (en) * | 2018-12-27 | 2019-11-15 | 西安必盛激光科技有限公司 | A kind of laser inner hole cladding equipment and gravity powder feeder |
| CN109706447A (en) * | 2019-01-18 | 2019-05-03 | 南京科莱汀激光科技有限公司 | A kind of inner hole cladding laser system based on reflective band-like integral mirror |
| CN211713201U (en) * | 2019-12-05 | 2020-10-20 | 西安必盛激光科技有限公司 | Laser cladding device for inner wall of deep blind hole |
Non-Patent Citations (1)
| Title |
|---|
| 潘涌;姜兆华;张同兴;张丽娟;王健超;张伟;: "旋转双光楔在激光微孔加工中的应用", 应用激光, no. 06, pages 516 - 517 * |
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