CN213196101U - Focusing mirror assembly for focusing optical fiber laser and optical fiber laser cutting head - Google Patents
Focusing mirror assembly for focusing optical fiber laser and optical fiber laser cutting head Download PDFInfo
- Publication number
- CN213196101U CN213196101U CN202021808496.2U CN202021808496U CN213196101U CN 213196101 U CN213196101 U CN 213196101U CN 202021808496 U CN202021808496 U CN 202021808496U CN 213196101 U CN213196101 U CN 213196101U
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- Prior art keywords
- focusing
- fiber laser
- optical lens
- protective shell
- mirror assembly
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- 238000003698 laser cutting Methods 0.000 title claims abstract description 21
- 239000013307 optical fiber Substances 0.000 title claims abstract description 16
- 230000003287 optical effect Effects 0.000 claims abstract description 38
- 230000001681 protective effect Effects 0.000 claims abstract description 33
- 239000000835 fiber Substances 0.000 claims abstract description 23
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 3
- 239000011324 bead Substances 0.000 description 6
- 230000004075 alteration Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a focusing mirror assembly for focusing of optical fiber laser, which comprises a protective shell and an optical lens fixing seat, wherein two groups of through holes are symmetrically formed on the side wall of the protective shell, two groups of threaded blind holes are symmetrically formed on the side wall of the optical lens fixing seat, the internal threads of the two groups of threaded blind holes are connected with a fixed rod, one end of the fixed rod passes through the through hole and extends to the outer side of the protective shell, and the fixed rod is clamped and fixed through a fixed clamping block; the rod body of dead lever is provided with threaded connection portion and annular draw-in groove portion respectively, threaded connection portion corresponds the setting with the screw thread blind hole. The utility model discloses a focusing mirror subassembly can be according to actual user demand installation multiunit focus lens, has improved the focus nature of optic fibre laser cutting head, can adjust the interval between multiunit focus lens and the interval between focus lens and the laser generator moreover to be convenient for adjust the facula size that forms on the workpiece surface.
Description
Technical Field
The utility model relates to a fiber laser cutting head technical field specifically is a focusing mirror subassembly and fiber laser cutting head for fiber laser focusing.
Background
The fiber laser cutting head is one of the important components of the fiber laser cutting machine, the fiber laser cutting machine is a laser cutting machine which uses a fiber laser generator as a light source, the fiber laser is a novel fiber laser which is newly developed internationally and outputs laser beams with high energy density, and the laser beams are gathered on the surface of a workpiece, so that an area irradiated by a superfine focus spot on the workpiece is instantly melted and gasified, the spot irradiation position is moved through a numerical control mechanical system, automatic cutting is realized, the speed is high, and the precision is high.
The conventional optical fiber laser cutting head usually has only one focus lens, because spherical aberration, focusing performance is not good, therefore influence the formation of laser facula on the workpiece surface, and then influence the cutting effect, interval between unable adjustment focus lens and the laser generator according to the demand of current optical fiber laser cutting head moreover, consequently inconvenient spot size to the workpiece surface formation adjusts, therefore we propose a focus mirror subassembly and optical fiber laser cutting head for optical fiber laser focusing.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a focusing mirror subassembly and optic fibre laser cutting head for optic fibre laser focusing, this optic fibre laser cutting head's focusing mirror subassembly can be according to actual user demand installation multiunit focus lens, has improved the focus nature of optic fibre laser cutting head to a certain extent, can adjust the interval between multiunit focus lens and the laser generator interval according to the cutting demand moreover to be convenient for adjust the spot size that forms on the workpiece surface, with the problem of proposing in solving above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a focusing lens assembly for focusing optical fiber laser comprises a protective shell and an optical lens fixing seat, wherein two groups of through holes are symmetrically formed in the side wall of the protective shell, two groups of threaded blind holes are symmetrically formed in the side wall of the optical lens fixing seat, fixing rods are connected to the inner threads of the two groups of threaded blind holes in a threaded manner, one end of each fixing rod penetrates through the through hole and extends to the outer side of the protective shell, and the fixing rods are clamped and fixed through fixing fixture blocks;
the rod body of the fixed rod is respectively provided with a threaded connecting part and an annular clamping groove part, the threaded connecting part is arranged corresponding to the threaded blind hole, and the annular clamping groove part is positioned on the outer side of the protective shell;
the fixing fixture block is characterized in that a through hole is formed in the side wall of the fixing fixture block, two groups of spring beads are symmetrically arranged in the through hole, and the two groups of spring beads are clamped and fixed in the annular fixture groove of the fixing rod.
Preferably, the side wall of the fixed clamping block is fixedly bonded with an anti-slip pad, the anti-slip pad is an annular elastic rubber anti-slip pad, and the anti-slip pad is attached to the outer wall of the protective shell.
Preferably, the protective shell is provided with an external thread section on the outer wall.
Preferably, the spring ball includes steel ball, sliding block, compression spring and baffle, the steel ball laminating is in one side of sliding block, one side fixed connection in compression spring's one end of sliding block, the baffle is provided with two sets ofly, sliding block and compression spring all are located between two sets of baffles.
Preferably, the optical lens fixing seat is an annular plastic optical lens fixing seat with a clamping groove on the inner wall, and the optical lens is fixed inside the optical lens fixing seat in a clamping mode.
The utility model provides an optic fibre laser cutting head, is including the focusing mirror subassembly that is used for optic fibre laser focusing, the upper end threaded connection of focusing mirror subassembly has the upper cover, the upper end of upper cover is provided with the threaded sleeve pipe that is used for installing laser generator, and threaded sleeve pipe with the coaxial setting of focusing mirror subassembly.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses a two sets of through-holes have been seted up to the symmetry on protective housing's lateral wall, and pass the through-hole with the one end of dead lever and extend to protective housing's the outside, and install the other end screw thread of dead lever on the lateral wall of optical lens piece fixing base, when using, can install multiunit focusing lens according to actual user demand, improved the focus nature of optic fibre laser cutting head to a certain extent, and can adjust the interval between the multiunit focusing lens and the interval between focusing lens and the laser generator according to the cutting demand, thereby be convenient for adjust the facula size that forms on the workpiece surface;
2. the utility model discloses a two sets of screw thread blind holes have been seted up to the symmetry on the lateral wall of optical lens piece fixing base to with the dead lever screw thread install in the inside of screw thread blind hole, be convenient for dismantle the dead lever from the optical lens piece fixing base, thereby be convenient for take out the optical lens piece fixing base from protective housing is inside, and then be convenient for change the optical lens piece on the optical lens piece fixing base.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a partial sectional view of fig. 1 at a according to the present invention;
FIG. 3 is a schematic structural view of the through hole of the present invention;
fig. 4 is a schematic structural view of the fixing rod of the present invention;
FIG. 5 is a schematic structural view of the spring bead of the present invention;
fig. 6 is a schematic structural view of the upper cover of the present invention.
In the figure: 1. a protective housing; 2. an optical lens holder; 3. a through hole; 4. a threaded blind hole; 5. fixing the rod; 6. fixing the fixture block; 7. a threaded connection; 8. an annular bayonet portion; 9. a through hole; 10. a spring bead; 11. a non-slip mat; 12. steel balls; 13. a slider; 14. a compression spring; 15. a baffle plate; 16. An optical lens; 17. an upper cover; 18. a threaded bushing.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution:
a focusing mirror assembly for focusing optical fiber laser comprises a protective shell 1 and an optical lens fixing seat 2, wherein the protective shell 1 is a protective shell with an external thread section on the outer wall, two groups of through holes 3 are symmetrically formed in the side wall of the protective shell 1, two groups of threaded blind holes 4 are symmetrically formed in the side wall of the optical lens fixing seat 2, fixing rods 5 are connected to the internal threads of the two groups of threaded blind holes 4 in a threaded manner, one end of each fixing rod 5 penetrates through the through hole 3 to extend to the outer side of the protective shell 1, and the fixing rods 5 are clamped and fixed through fixing clamping blocks 6;
the optical lens fixing seat 2 is arranged to be an elastic optical lens fixing seat 2, a clamping groove for clamping and fixing the optical lens 16 is formed in the inner wall of the optical lens fixing seat 2, the optical lens 16 is clamped and fixed in the clamping groove of the optical lens fixing seat 2, and at least one group of the optical lens fixing seats 2 is arranged in the protective shell 1;
set up through hole 9 on the lateral wall of fixed fixture block 6, two sets of spring beads 10 are installed to the inside symmetry of through hole 9, and inside two sets of spring beads 10 all the joint was fixed in the annular draw-in groove portion 8 of dead lever 5, fixed bonding has slipmat 11 on the lateral wall of fixed fixture block 6, and slipmat 11 sets up to annular elasticity rubber slipmat, and slipmat 11 laminates on protective housing 1's outer wall.
As shown in fig. 4, the rod body of the fixing rod 5 is respectively provided with a threaded connection portion 7 and an annular clamping groove portion 8, the threaded connection portion 7 is arranged corresponding to the threaded blind hole 4, and the annular clamping groove portion 8 is located at the outer side of the protective housing 1;
as shown in fig. 5, the spring ball 10 includes a steel ball 12, a sliding block 13, a compression spring 14 and two groups of baffles 15, the steel ball 12 is attached to one side of the sliding block 13, one side of the sliding block 13 is fixedly connected to one end of the compression spring 14, the two groups of baffles 15 are provided, the sliding block 13 and the compression spring 14 are both located between the two groups of baffles 15, the spring ball 10 is clamped inside the annular clamping groove portion 8 on the rod body of the fixing rod 5, the fixing clamping block 6 is fixed, the anti-slip pad 11 is fixedly bonded to the side wall, the anti-slip pad 11 is attached to the outer wall of the protective housing 1, the friction force between the fixing clamping block 6 and the protective housing 1 is increased, and the optical lens fixing seat 2 is prevented from being;
as shown in fig. 6, an optical fiber laser cutting head comprises a focusing lens assembly for focusing optical fiber laser, an upper cover 17 is screwed on the upper end of the focusing lens assembly, a threaded sleeve 18 for installing a laser generator is arranged on the upper end of the upper cover 17, and the threaded sleeve 18 and the focusing lens assembly are coaxially arranged; the upper cover 17 is an upper cover with a concave cross section, the inner wall of the upper cover 17 is provided with an internal thread matched with the external thread section on the outer wall of the protective shell 1, the external thread section and the internal thread are both provided with NPT sealing threads, and when the focusing mirror assembly is installed on the optical fiber laser cutting head, the installation sealing performance of the focusing mirror assembly is ensured to a certain extent.
The structure principle is as follows: according to the assembly, two groups of through holes 3 are symmetrically formed in the side wall of the protective shell 1, one end of the fixing rod 5 penetrates through the through holes 3 and extends to the outer side of the protective shell 1, the other end of the fixing rod 5 is installed on the side wall of the optical lens fixing seat 2 in a threaded mode, when the assembly is used, a plurality of groups of focusing lenses can be installed according to actual using requirements, the focusing performance of the optical fiber laser cutting head is improved to a certain extent, and the distance between the groups of focusing lenses and the distance between the focusing lenses and a laser generator can be adjusted according to cutting requirements, so that the size of a light spot formed on the surface of a workpiece can be adjusted conveniently; two sets of screw thread blind holes 4 have been seted up through the symmetry on the lateral wall at optical lens fixing base 2 to with 5 threaded mounting of dead lever in the inside of screw thread blind hole 4, be convenient for dismantle dead lever 5 from optical lens fixing base 2, thereby be convenient for take out optical lens fixing base 2 from protective housing 1 is inside, and then be convenient for change optical lens 16 on the optical lens fixing base 2.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A focusing mirror subassembly for focusing of optical fiber laser, includes protective housing (1) and optical lens fixing base (2), its characterized in that: two groups of through holes (3) are symmetrically formed in the side wall of the protective shell (1), two groups of threaded blind holes (4) are symmetrically formed in the side wall of the optical lens fixing seat (2), fixing rods (5) are connected to the inner threads of the two groups of threaded blind holes (4), one end of each fixing rod (5) penetrates through the corresponding through hole (3) and extends to the outer side of the protective shell (1), and the fixing rods (5) are clamped and fixed through fixing clamping blocks (6);
the rod body of the fixed rod (5) is respectively provided with a threaded connecting part (7) and an annular clamping groove part (8), the threaded connecting part (7) is arranged corresponding to the threaded blind hole (4), and the annular clamping groove part (8) is positioned on the outer side of the protective shell (1);
through hole (9) have been seted up on the lateral wall of fixed fixture block (6), two sets of spring pearl (10) are installed to the inside symmetry of through hole (9), and two sets of spring pearl (10) are all inside the joint is fixed in annular draw-in groove portion (8) of dead lever (5).
2. A focusing mirror assembly for fiber laser focusing according to claim 1, wherein: the anti-skid device is characterized in that an anti-skid pad (11) is fixedly bonded on the side wall of the fixed clamping block (6), the anti-skid pad (11) is an annular elastic rubber anti-skid pad, and the anti-skid pad (11) is attached to the outer wall of the protective shell (1).
3. A focusing mirror assembly for fiber laser focusing according to claim 1, wherein: the protective shell (1) is provided with an external thread section on the outer wall.
4. A focusing mirror assembly for fiber laser focusing according to claim 1, wherein: spring ball (10) include steel ball (12), sliding block (13), compression spring (14) and baffle (15), steel ball (12) are laminated in one side of sliding block (13), one side fixed connection in compression spring (14) of sliding block (13), baffle (15) are provided with two sets ofly, sliding block (13) and compression spring (14) all are located between two sets of baffle (15).
5. A focusing mirror assembly for fiber laser focusing according to claim 1, wherein: optical lens fixing base (2) set up to have annular plastics optical lens fixing base (2) of draw-in groove on the inner wall, just optical lens (16) are fixed with to the inside joint of optical lens fixing base (2).
6. A fiber laser cutting head comprising the focusing mirror assembly for fiber laser focusing of any one of claims 1-5, characterized by: the upper end of the focusing mirror assembly is in threaded connection with an upper cover (17), a threaded sleeve (18) used for mounting a laser generator is arranged at the upper end of the upper cover (17), and the threaded sleeve (18) and the focusing mirror assembly are coaxially arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021808496.2U CN213196101U (en) | 2020-08-26 | 2020-08-26 | Focusing mirror assembly for focusing optical fiber laser and optical fiber laser cutting head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021808496.2U CN213196101U (en) | 2020-08-26 | 2020-08-26 | Focusing mirror assembly for focusing optical fiber laser and optical fiber laser cutting head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213196101U true CN213196101U (en) | 2021-05-14 |
Family
ID=75841542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021808496.2U Expired - Fee Related CN213196101U (en) | 2020-08-26 | 2020-08-26 | Focusing mirror assembly for focusing optical fiber laser and optical fiber laser cutting head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213196101U (en) |
-
2020
- 2020-08-26 CN CN202021808496.2U patent/CN213196101U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210514 |
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| CF01 | Termination of patent right due to non-payment of annual fee |