CN110000468B - Manual focusing optical fiber laser cutting head - Google Patents
Manual focusing optical fiber laser cutting head Download PDFInfo
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- CN110000468B CN110000468B CN201910394503.4A CN201910394503A CN110000468B CN 110000468 B CN110000468 B CN 110000468B CN 201910394503 A CN201910394503 A CN 201910394503A CN 110000468 B CN110000468 B CN 110000468B
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 31
- 238000003698 laser cutting Methods 0.000 title claims abstract description 22
- 230000001681 protective effect Effects 0.000 claims abstract description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- 238000001816 cooling Methods 0.000 claims abstract description 35
- 230000033001 locomotion Effects 0.000 claims abstract description 9
- 241000755266 Kathetostoma giganteum Species 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 239000000835 fiber Substances 0.000 claims description 7
- 229910000975 Carbon steel Inorganic materials 0.000 abstract description 3
- 239000010962 carbon steel Substances 0.000 abstract description 3
- 239000010935 stainless steel Substances 0.000 abstract description 3
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 3
- 230000001360 synchronised effect Effects 0.000 abstract 1
- 239000011521 glass Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008676 import Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/04—Automatically aligning, aiming or focusing the laser beam, e.g. using the back-scattered light
- B23K26/046—Automatically focusing the laser beam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
- Microscoopes, Condenser (AREA)
Abstract
The invention discloses a manual focusing optical fiber laser cutting head which comprises an optical fiber interface seat, a water cooling assembly, a collimating mirror assembly, a focusing mirror assembly, a protective mirror assembly and a cutting nozzle which are sequentially arranged, wherein the focusing mirror assembly comprises a focusing mirror part and a focusing part, the focusing part is arranged on the side surface of the focusing mirror seat, the focusing part comprises an eccentric adjusting wheel and a connecting block, the eccentric adjusting wheel is formed by rigidly connecting a short-head screw and an eccentric wheel, the cylindrical surface of the eccentric wheel is tangent to the connecting block, the eccentric adjusting wheel rotates to drive the connecting block to do linear motion along the axial direction of the focusing mirror seat, and the linear motion of the connecting block drives the focusing mirror seat to do synchronous motion. The cutting machine can realize the basic functions of cutting the carbon steel plate and the stainless steel plate, but has simple structure and low cost, and can be used as an independent machine tool accessory to be connected with a laser cutting machine.
Description
Technical Field
The invention belongs to the field of manufacturing of cutting equipment, and particularly relates to an optical fiber laser cutting head for cutting steel.
Background
With the shift of the global manufacturing center to China, the annual growth rate of the market demand of numerical control laser complete equipment in China reaches more than 50%, and through years of development, the laser technology and equipment are from inexistence to inexistence, and a certain industrial scale is gradually formed. The cutting head is used as the tail end of a transmission chain of the laser cutting machine and plays an important role in cutting quality and cutting speed.
At present, PRECITEC cutting heads and IIVI cutting heads are most used domestically, and some domestic large-brand laser cutting machine manufacturers basically use imported cutting heads, excessively rely on import, and lack profit margins. The core technology in the laser industry is an important factor for restraining the rapid and healthy development of the laser industry in China. Breaking the foreign technical monopoly and realizing import substitution is an important subject on the laser processing development road. Therefore, the cutting head is optimally designed in structure, so that the blockages of foreign technologies are tried to be broken, and the cost is reduced.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a manual focusing optical fiber laser cutting head with simple structure and low cost aiming at the defects of the prior art, and meets the basic requirements of cutting carbon steel plates and stainless steel plates.
The technical scheme is as follows: the manual focusing optical fiber laser cutting head comprises an optical fiber interface seat, a water cooling assembly, a collimating mirror assembly, a focusing mirror assembly, a protective mirror assembly and a cutting nozzle which are sequentially arranged, wherein an optical fiber extends into the water cooling assembly through the optical fiber interface seat, and the water cooling assembly is used for cooling the optical fiber;
a collimating lens for expanding light beams emitted by optical fibers is arranged in the collimating lens assembly, and the collimating lens and the optical fiber interface seat are coaxially arranged;
the focusing lens assembly comprises a focusing lens part and a focusing part, the focusing lens part is provided with a focusing lens for reconverging parallel light expanded by the collimating lens into Gaussian beams, a focusing lens seat for placing the focusing lens, and a focusing lens barrel embedded outside the focusing lens seat, and the focusing lens seat is rigidly connected with the focusing lens barrel; the focusing part is arranged on the side surface of the focusing lens base and comprises an eccentric adjusting wheel and a connecting block, wherein the eccentric adjusting wheel is formed by rigidly connecting a short-head screw and an eccentric wheel, the cylindrical surface of the eccentric wheel is tangent to the connecting block, the eccentric adjusting wheel rotates to drive the connecting block to do linear motion along the axial direction of the focusing lens base, the connecting block is connected with the focusing lens cone, the linear motion of the connecting block drives the focusing lens cone to move, and the focusing lens cone drives the focusing lens base to move synchronously;
the protective lens assembly comprises a protective lens seat and a protective lens arranged in the protective lens seat, and the protective lens seat is detachably arranged below the focusing lens seat;
the cutting nozzle is mounted below the protective mirror assembly.
According to a further preferable technical scheme, the focusing part of the focusing lens assembly further comprises a focus adjusting seat, a focusing lens seat cover, a focusing knob seat and a dial;
the focus adjusting seat is embedded outside the focus adjusting seat, the focus adjusting seat cover is arranged on the side surface of the focus adjusting seat, the focusing knob seat is arranged on the focus adjusting seat cover, the dial is arranged on the surface of the focusing knob seat, and an eccentric adjusting wheel formed by rigidly connecting a short-head screw and an eccentric wheel is placed in the focusing knob seat and rotates in the focusing knob seat;
a groove is further formed in the axial direction of the focus adjusting seat, and a connecting block tangent to the eccentric adjusting wheel penetrates through the groove of the cover to be connected with a lens barrel of the focusing lens positioned in the focus adjusting seat.
Preferably, the focusing lens assembly further comprises an axis adjusting part, and the axis adjusting part comprises:
the bracket is positioned between the focusing lens base cover and the focus adjusting base and is connected with the focusing lens base cover through a positioning pin, the displacement of the bracket relative to the focusing lens base cover in the vertical direction is limited by the positioning pin, and the displacement of the bracket in the parallel direction far away from or close to the focusing lens base cover is not limited;
the springs are arranged along the axial direction of the focus adjusting seat and surround the focus adjusting seat, two ends of each spring respectively surround two sides of the bracket and are fixed on the focusing lens seat cover, and the springs and the brackets are matched to form a hoop-shaped structure to maintain the position of the focus adjusting seat relative to the focusing lens seat cover;
a plurality of first flat head locking screw a plurality of blind holes have been seted up on the bracket, the steel ball has been placed in the blind hole, first flat head locking screw passes in the through-hole that the focusing lens seat was covered and is seted up stretches into corresponding blind hole on the bracket, adjusts first flat head locking screw, first flat head locking screw cooperation steel ball promote the bracket is keeping away from or is close to the displacement on the direction of focusing lens seat lid, and the bracket drives the focus is adjusted the seat and is changed the position, adjusts the focus of focusing lens to coaxial with cutting torch center.
Preferably, the bracket is provided with a plurality of through holes, a second flat-head locking screw penetrates through each through hole, and the end of the second flat-head locking screw is in contact with the surface of the focus adjusting seat.
Preferably, the water-cooling assembly comprises a water-cooling flange, a water-cooling flange cover, a water inlet pipe joint and a water outlet pipe joint, and the water-cooling flange cover are sealed through a plurality of sealing rings; the water inlet pipe joint and the water outlet pipe joint are communicated with the inner cavity of the water-cooling flange, and a sealing pin is further arranged between the water inlet pipe joint and the water outlet pipe joint and separates the water inlet pipe joint from the water outlet pipe joint.
Preferably, the collimating mirror assembly, the focusing mirror assembly and the protecting mirror assembly are all installed in the cutting head main body, the collimating mirror assembly is installed at the top end of the cutting head main body, and the protecting mirror assembly is installed at the bottom end of the cutting head main body.
Preferably, the protective mirror assembly comprises a protective mirror base, a protective mirror installed in the protective mirror base and a connecting plate installed on the side surface of the protective mirror base, and the connecting plate is respectively fixed with the protective mirror base and the cutting head main body through a connecting screw and a non-disengaging screw.
Preferably, the top end of the protective lens seat is open, the protective lens is detachably mounted in the opening of the protective lens seat, the top end of the protective lens seat is provided with a locking nut, and the locking nut fixes the protective lens in the protective lens seat.
Has the advantages that: (1) according to the invention, an optical fiber enters a water cooling assembly through an optical fiber interface, a light beam is firstly projected on a collimating mirror assembly, a divergent laser beam at the moment is changed into parallel light after passing through the collimating mirror, the parallel light enters a focusing assembly and then is converged on the focusing mirror, the parallel light is converged into a Gaussian light beam again, the converged Gaussian light beam finally enters a cutting nozzle to realize laser cutting through a protective mirror assembly, and the basic function of cutting a carbon steel plate and a stainless steel plate can be realized, but the structure is simple, the matching of precise optics and mechanical instruments is not needed, the cost is low, the mass and large-scale production can be realized, and the optical fiber can be used as an independent machine tool accessory and connected to a laser cutting machine;
(2) the invention adopts a manual focusing form, which is different from the existing complex focusing system in the market, when in focusing, an inner hexagonal wrench is used for rotating a short-head screw, so that an eccentric wheel rotates for a certain angle in a focusing knob seat, the eccentric cylindrical surface of the eccentric wheel is just tangent to a connecting block, a connecting block moves up and down along the groove of a focus adjusting seat, and the connecting block drives a focusing lens seat to move, thereby realizing the up-and-down movement of a focusing lens and changing the focus position during laser cutting; the focusing function is the same as that of the focusing function, the shaft adjusting function of the invention adopts simple setting, the bracket is connected on the focusing lens base cover through the positioning pin, the second flat head locking screw on the bracket can outwards abut against the focus adjusting base, the spring is arranged at the outer side of the focus adjusting base, so that the focus adjusting base is firmly arranged on the focusing lens base cover, when the laser center and the cutting torch center are not coaxial, the position of the focus adjusting base can be changed through the first flat head locking screw and the steel ball arranged on the bracket, and the laser center and the cutting torch center are coaxial;
(3) the water cooling assembly is also provided with a sealing pin between the water inlet pipe joint and the water outlet pipe joint, and the sealing pin separates the water inlet pipe joint from the water outlet pipe joint, so that cooling water is prevented from directly returning to a water outlet from a water inlet, and the cooling effect is improved; the protective glass component adopts a detachable structure, is easy to use and convenient to replace.
Drawings
FIG. 1 is a schematic view of a manually focused fiber laser cutting head according to the present invention;
FIG. 2 is a schematic diagram of the internal structure of a manually focused fiber laser cutting head according to the present invention;
FIG. 3 is a schematic structural diagram of a water cooling module according to the present invention;
FIG. 4 is a cross-sectional view of the water cooling assembly of the present invention;
FIG. 5 is a schematic diagram of the focusing mirror assembly of the present invention;
FIG. 6 is an axial cross-sectional view of the focusing mirror assembly of the present invention;
FIG. 7 is a radial cross-sectional view of a focusing assembly of the present invention;
FIG. 8 is an exploded view of the focusing assembly of the present invention;
fig. 9 is a schematic structural view of a protective mirror assembly of the present invention.
In the figure, 1-optical fiber, 2-optical fiber interface seat, 3-water cooling component, 4-collimating mirror component, 5-focusing mirror component, 6-protective mirror component, 7-cutting nozzle, 301-water cooling flange, 302-water cooling flange cover, 303-water inlet pipe joint, 304-water outlet pipe joint, 305-sealing pin, 501-dial, 502-eccentric wheel, 503-short-head screw, 504-connecting block, 505-focusing knob seat, 506-focusing mirror seat cover, 507-focus adjusting seat, 508-focusing mirror seat, 509-first flat-head locking screw, 510-steel ball, 511-bracket, 512-spring, 513-second flat-head locking screw, 514-focusing mirror lens cone, 601-protective mirror seat, 602-protective mirror lens cone, 603-connecting plate, 604-locking nut.
Detailed Description
The technical solution of the present invention is described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the embodiments.
Example 1: the utility model provides a manual focusing optic fibre laser cutting head, is including the optic fibre interface seat 2, water-cooling module 3, collimating mirror subassembly 4, focusing mirror subassembly 5, protective glass subassembly 6 and the cutting torch 7 that set gradually. Collimating mirror subassembly 4, focusing mirror subassembly 5 and protective glass subassembly 6 are all installed in the cutting head main part, and collimating mirror subassembly 4 installs in the top of cutting head main part, and protective glass subassembly 6 installs in cutting head main part bottom.
The water-cooling component 3 comprises a water-cooling flange 301, a water-cooling flange cover 302, a water inlet pipe connector 303 and a water outlet pipe connector 304, and the water-cooling flange 301 and the water-cooling flange cover 302 are sealed through a plurality of sealing rings; the water inlet pipe connector 303 and the water outlet pipe connector 304 are communicated with the inner cavity of the water cooling flange 301, a sealing pin 305 is further arranged between the water inlet pipe connector 303 and the water outlet pipe connector 304, and the water inlet pipe connector 303 and the water outlet pipe connector 304 are separated by the sealing pin 305.
The collimating lens component 4 is internally provided with a collimating lens for expanding the light beam emitted by the optical fiber 1, and the collimating lens and the optical fiber interface seat 2 are coaxially arranged.
The focusing lens assembly 5 includes a focusing lens portion, a focusing portion, and a shaft adjusting portion.
The focusing lens part is provided with a focusing lens for converging the parallel light expanded by the collimating lens into a Gaussian beam again, a focusing lens seat 508 for placing the focusing lens, and a focusing lens barrel 514 which is embedded outside the focusing lens seat 508, and the focusing lens seat 508 is rigidly connected with the focusing lens barrel 514.
The focusing part comprises an eccentric adjusting wheel formed by rigidly connecting a short-head screw 503 and an eccentric wheel 502, a connecting block 504, a focus adjusting seat 507, a focusing lens seat cover 506, a focusing knob seat 505 and a dial 501.
A focus adjusting seat 507 is embedded outside a focus lens barrel 514, a focus lens seat cover 506 is installed on the side surface of the focus adjusting seat 507, a focus knob seat 505 is installed on the focus lens seat cover 506, a dial 501 is arranged on the surface of the focus knob seat 505, an eccentric adjusting wheel formed by rigidly connecting a short-head screw 503 and an eccentric wheel 502 is placed in the focus knob seat 505 and rotates in the focus knob seat 505; a groove is also arranged on the axial direction of the focus adjusting seat 507, and a connecting block 504 tangent to the eccentric adjusting wheel passes through the cover groove to be connected with a focusing lens cone 514 positioned in the focus adjusting seat 507. The eccentric adjustment wheel rotates to drive the connection block 504 to move linearly along the axial direction of the focusing lens base 508, the linear movement of the connection block 504 drives the focusing lens barrel 514 to move, and the focusing lens barrel 514 drives the focusing lens base 508 to move synchronously.
The shaft adjusting part comprises a bracket 511, a plurality of springs 512 and a plurality of first flat locking screws 509, the bracket 511 is positioned between the focusing lens base cover 506 and the focus adjusting base 507, the bracket 511 is connected with the focusing lens base cover 506 through a positioning pin, the up-and-down displacement of the bracket 511 relative to the focusing lens base cover 506 is limited by the positioning pin, and the displacement of the bracket 511 in the parallel direction far away from or close to the focusing lens base cover 506 is not limited; the bracket 511 is provided with a plurality of through holes, each through hole is internally penetrated with a second flat head locking screw 513, and the end of the second flat head locking screw 513 is contacted with the surface of the focus adjusting seat 507. The plurality of springs 512 are arranged along the axial direction of the focus adjusting seat 507 and surround the focus adjusting seat 507, two ends of the springs 512 respectively bypass two sides of the bracket 511 and are fixed on the focusing lens seat cover 506, and the plurality of springs 512 and the bracket 511 are matched to form an anchor ear-shaped structure to maintain the position of the focus adjusting seat 507 relative to the focusing lens seat cover 506. A plurality of blind holes are formed in the bracket 511, steel balls 510 are placed in the blind holes, first flat-head locking screws 509 penetrate through holes formed in the focusing lens base cover 506 and extend into corresponding blind holes in the bracket 511, the first flat-head locking screws 509 are adjusted, the first flat-head locking screws cooperate with the steel balls 510 to push the bracket 511 to move in the direction away from or close to the focusing lens base cover 506, the bracket 511 drives the focus adjusting base 507 to change the position, and the focus of the focusing lens is adjusted to be coaxial with the center of the cutting torch 7.
The protective lens assembly 6 comprises a protective lens base 601, a protective lens 602 and a connecting plate 603 installed on the side surface of the protective lens base 601, wherein the connecting plate 603 is fixed with the protective lens base 601 and the cutting head main body through connecting screws and non-release screws respectively. The top end of the protective lens base 601 is opened, the protective lens 602 is detachably mounted in the opening of the protective lens base 601, the top end opening of the protective lens base 601 is provided with a locking nut 604, and the locking nut 604 fixes the protective lens 602 in the protective lens base 601.
The cutting tip 7 is mounted below the protective mirror assembly 6.
The optical fiber 1 enters the water cooling component 3 through an optical fiber interface, a light beam is firstly projected on the collimating mirror component 4, the diffused laser beam is changed into parallel light after passing through the collimating mirror, the parallel light enters the focusing component and then is converged on the focusing mirror, the parallel light is converged into a Gaussian light beam again, and the converged Gaussian light beam passes through the protective mirror component 6 and finally enters the cutting torch 7 to realize laser cutting.
As noted above, while the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited thereto. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. The utility model provides a manual focusing optic fibre laser cutting head, includes the optic fibre interface seat, water cooling module, collimating mirror subassembly, focusing mirror subassembly, protection mirror subassembly and the cutting torch that set gradually, its characterized in that:
the optical fiber extends into the water cooling assembly through the optical fiber interface seat, and the water cooling assembly is used for cooling the optical fiber;
a collimating lens for expanding light beams emitted by optical fibers is arranged in the collimating lens assembly, and the collimating lens and the optical fiber interface seat are coaxially arranged;
the focusing lens assembly comprises a focusing lens part and a focusing part, the focusing lens part is provided with a focusing lens for reconverging parallel light expanded by the collimating lens into Gaussian beams, a focusing lens seat for placing the focusing lens, and a focusing lens barrel embedded outside the focusing lens seat, and the focusing lens seat is rigidly connected with the focusing lens barrel; the focusing part is arranged on the side surface of the focusing lens base and comprises an eccentric adjusting wheel and a connecting block, wherein the eccentric adjusting wheel is formed by rigidly connecting a short-head screw and an eccentric wheel, the cylindrical surface of the eccentric wheel is tangent to the connecting block, the eccentric adjusting wheel rotates to drive the connecting block to do linear motion along the axial direction of the focusing lens base, the connecting block is connected with the focusing lens cone, the linear motion of the connecting block drives the focusing lens cone to move, and the focusing lens cone drives the focusing lens base to move synchronously;
the focusing part of the focusing lens assembly also comprises a focus adjusting seat, a focusing lens seat cover, a focusing knob seat and a dial;
the focus adjusting seat is embedded outside the focus adjusting seat, the focus adjusting seat cover is arranged on the side surface of the focus adjusting seat, the focusing knob seat is arranged on the focus adjusting seat cover, the dial is arranged on the surface of the focusing knob seat, and an eccentric adjusting wheel formed by rigidly connecting a short-head screw and an eccentric wheel is placed in the focusing knob seat and rotates in the focusing knob seat;
a groove is further formed in the axial direction of the focus adjusting seat, and a connecting block tangent to the eccentric adjusting wheel penetrates through the groove of the cover to be connected with a lens barrel of the focusing lens in the focus adjusting seat;
the focusing lens assembly further includes an axis adjustment portion including:
the bracket is positioned between the focusing lens base cover and the focus adjusting base and is connected with the focusing lens base cover through a positioning pin, the displacement of the bracket relative to the focusing lens base cover in the vertical direction is limited by the positioning pin, and the displacement of the bracket in the parallel direction far away from or close to the focusing lens base cover is not limited;
the springs are arranged along the axial direction of the focus adjusting seat and surround the focus adjusting seat, two ends of each spring respectively surround two sides of the bracket and are fixed on the focusing lens seat cover, and the springs and the brackets are matched to form a hoop-shaped structure to maintain the position of the focus adjusting seat relative to the focusing lens seat cover;
the first flat-head locking screws penetrate through holes formed in the focusing lens base cover and extend into the corresponding blind holes in the bracket, the first flat-head locking screws are adjusted, the first flat-head locking screws are matched with the steel balls to push the bracket to move in the direction far away from or close to the focusing lens base cover, the bracket drives the focus adjusting base to change the position, and the focus of the focusing lens is adjusted to be coaxial with the center of the cutting nozzle;
the protective lens assembly comprises a protective lens seat and a protective lens arranged in the protective lens seat, and the protective lens seat is detachably arranged below the focusing lens seat;
the cutting nozzle is mounted below the protective mirror assembly.
2. The manual focusing optical fiber laser cutting head of claim 1, wherein a plurality of through holes are formed in the bracket, a second flat locking screw penetrates through each through hole, and the end of each second flat locking screw is in contact with the surface of the focus adjusting seat.
3. The manual focusing optical fiber laser cutting head according to any one of claims 1-2, wherein the water cooling assembly comprises a water cooling flange, a water cooling flange cover, a water inlet pipe joint and a water outlet pipe joint, and the water cooling flange cover are sealed through a plurality of sealing rings; the water inlet pipe joint and the water outlet pipe joint are communicated with the inner cavity of the water-cooling flange, and a sealing pin is further arranged between the water inlet pipe joint and the water outlet pipe joint and separates the water inlet pipe joint from the water outlet pipe joint.
4. The manual focusing optical fiber laser cutting head according to any one of claims 1 to 2, wherein the collimating lens assembly, the focusing lens assembly and the protecting lens assembly are all mounted in the cutting head main body, the collimating lens assembly is mounted at the top end of the cutting head main body, and the protecting lens assembly is mounted at the bottom end of the cutting head main body.
5. The manually focused fiber laser cutting head of claim 4, wherein the protective lens assembly comprises a protective lens base, a protective lens mounted in the protective lens base, and a connecting plate mounted on a side surface of the protective lens base, the connecting plate being fixed to the protective lens base and the cutting head body by a connecting screw and a non-release screw, respectively.
6. The manual focusing optical fiber laser cutting head as claimed in claim 5, wherein the top end of the protective lens base is open, the protective lens is detachably mounted in the opening of the protective lens base, the top end of the protective lens base is provided with a locking nut, and the locking nut fixes the protective lens in the protective lens base.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910394503.4A CN110000468B (en) | 2019-05-13 | 2019-05-13 | Manual focusing optical fiber laser cutting head |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910394503.4A CN110000468B (en) | 2019-05-13 | 2019-05-13 | Manual focusing optical fiber laser cutting head |
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| CN110000468A CN110000468A (en) | 2019-07-12 |
| CN110000468B true CN110000468B (en) | 2021-04-30 |
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| CN110977146A (en) * | 2019-11-20 | 2020-04-10 | 大族激光科技产业集团股份有限公司 | Light beam adjusting device of optical lens group |
| CN110989100B (en) * | 2019-11-29 | 2020-12-29 | 佛山市宏石激光技术有限公司 | Optical fiber laser |
| CN113798659A (en) * | 2020-05-29 | 2021-12-17 | 方强 | Optical zoom focusing lens, mechanical structure thereof, optical structure and using method thereof |
| CN113751862A (en) * | 2020-05-29 | 2021-12-07 | 方强 | Zooming and focusing laser cutting head based on two lenses |
| CN117539019B (en) * | 2023-12-11 | 2024-06-18 | 深圳市诚信神火科技有限公司 | Laser focusing mechanism and method |
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| CN204934884U (en) * | 2015-09-09 | 2016-01-06 | 深圳欧斯普瑞智能科技有限公司 | A kind of novel optical fiber laser cutting head with alignment function |
| CN205834484U (en) * | 2016-07-13 | 2016-12-28 | 卡门哈斯激光科技（苏州）有限公司 | Cut head unit |
| CN206065664U (en) * | 2016-10-24 | 2017-04-05 | 深圳市万顺兴科技有限公司 | A kind of large-power optical fiber automatic focusing cutting head |
| CN107283076A (en) * | 2017-08-04 | 2017-10-24 | 东莞市力星激光科技有限公司 | A kind of fiber cut head of the interchangeable different focal focusing lens of high power |
| CN107283076B (en) * | 2017-08-04 | 2018-07-20 | 东莞市力星激光科技有限公司 | A kind of fiber cut head of the interchangeable different focal length focusing lens of high power |
| CN207343960U (en) * | 2017-08-15 | 2018-05-11 | 东莞市力星激光科技有限公司 | A kind of axial regulating mechanism of laser cutting head focus lamp |
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| CN110000468A (en) | 2019-07-12 |
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