CN112589285A

CN112589285A - Hardware optical fiber processing laser cutting machine

Info

Publication number: CN112589285A
Application number: CN202011531404.5A
Authority: CN
Inventors: 李书华
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-04-02

Abstract

The invention relates to the technical field of laser cutting, and discloses a hardware optical fiber processing laser cutting machine which comprises a fixed sleeve, a focusing lens, a protective lens, a cut material and an air pump. Through the setting of overcoat nozzle, make the auxiliary gas from the outside of conical duct to being cut the material injection, form one deck protective layer in the outside of light beam, and strike the slag, effectively reduce gaseous blockking to the light beam, strengthen the light beam to being cut the melting effect of material, improve cutting efficiency, and simultaneously, through the setting of slant nozzle, make from the blowout of slant nozzle spun auxiliary gas with a great inclination angle, provide a slant power for the slag of top and rush to the slot, and under the pressure of the spun auxiliary gas in the overcoat nozzle, spout away from the slot that has accomplished the cutting, prevent effectively that the slag from launching into conical duct and scattering to the upper surface of being cut the material, improve the security of protective glass, and reduce the pollution of slag to being cut the material upper surface.

Description

Hardware optical fiber processing laser cutting machine

Technical Field

The invention relates to the technical field of laser cutting, in particular to a hardware optical fiber processing laser cutting machine.

Background

The fiber laser is a novel fiber laser which is newly developed internationally and outputs a laser beam with high energy density, and the laser beam is gathered on the surface of a workpiece, so that an area irradiated by a superfine focus light spot on the workpiece is instantly melted and gasified, the light spot irradiation position is moved through a numerical control mechanical system to realize automatic cutting, but the existing fiber laser cutting machine has some defects as follows:

during cutting, a laser beam is focused into a small light spot, so that the light spot reaches high power density, a cut material is heated to a gasification temperature quickly and is evaporated to form a cavity, the hole is continuous along with the relative movement of the light beam and the cut material, a kerf with a narrow width is further formed, in the cutting process, slag in the slot is blown away by using auxiliary gas and the surface of a cooled processing object is required to be reduced in a heat affected zone, but in the existing structure, the gas transversely and vertically enters a nozzle, then the cut material is vertically sprayed with fragrance at the bottom end of the nozzle under certain pressure, because the cut material is gradually gasified by the laser, when the auxiliary gas vertically blows towards the slag, the slag above is blocked by the material at the bottom, so that the auxiliary gas rebounds or scatters around, some slag is rebounded to enter the nozzle, a protective mirror is polluted, and some slag falls on the upper surface of the cut material, the surface of the cut material is contaminated, and the quality of the cut product is reduced.

Since various particles in the air can generate, absorb, reflect, refract or the like to the light transmitted in the air, the light is attenuated when passing through, the laser is also light and can be influenced by the gas, and after the auxiliary gas enters the nozzle, a barrier layer can be formed to weaken and attenuate the laser and influence the efficiency of laser cutting.

Disclosure of Invention

The invention provides a laser cutting machine for hardware optical fiber processing, which has the advantages of high cutting speed and good product quality and solves the problems in the background technology.

The invention provides the following technical scheme: a hardware optical fiber processing laser cutting machine comprises a fixed sleeve, a focusing lens, a protective lens, a cut material and an air pump, wherein a conical pipe is fixedly arranged on the bottom surface of the fixed sleeve, a fixed connecting frame is fixedly connected to the top of the conical pipe, the fixed connecting frame is fixedly connected with the bottom surface of the fixed sleeve, a jacket nozzle is movably sleeved on the conical pipe and below the fixed connecting frame, the top of the jacket nozzle is movably connected with the fixed connecting frame, the bottom surface of the fixed connecting frame is movably connected with an annular connecting pipe, the bottom surface of the annular connecting pipe is fixedly connected with an oblique nozzle, the right side of the jacket nozzle is fixedly connected with the oblique nozzle, a separation baffle is movably sleeved in an inner cavity of the jacket nozzle, an annular passage is arranged inside the jacket nozzle, an air inlet pipe is fixedly connected to the right side of the fixed connecting frame, and the air inlet pipe is fixedly communicated with the air, the left side fixed mounting of fixed connection frame has the motor, the fixed action wheel that has cup jointed in the bottom of motor loose axle, the fixed ring gear that cup joints in the outside of annular connecting pipe, the motor meshes with the ring gear, the annular opening has been seted up to the bottom of fixed connection frame, annular opening and annular connecting pipe intercommunication.

Preferably, the inner chamber of overcoat nozzle and the below movable mounting who is located separation baffle have a movable supporting plate, the even fixedly connected with pressure boost spring in bottom of separation baffle, pressure boost spring's bottom and movable supporting plate's last fixed surface are connected.

Preferably, the bottom surface of the movable supporting plate is uniformly and movably connected with a threaded rod, and the threaded rod is in threaded connection with the outer sleeve nozzle.

Preferably, an adjustable pressure valve is fixedly mounted at the right end of the oblique nozzle and at the joint between the annular connecting pipe and the oblique nozzle.

Preferably, the inclined nozzle is always in a symmetrical position with the cutting seam by taking the outer sleeve nozzle as a center.

The invention has the following beneficial effects:

1. through the setting of overcoat nozzle, make the auxiliary gas from the outside of conical duct to being cut the material injection, form one deck protective layer in the outside of light beam, and strike the slag, effectively reduce gaseous blockking to the light beam, strengthen the light beam to being cut the melting effect of material, improve cutting efficiency, simultaneously, through the setting of slant nozzle, make from the blowout of slant nozzle spun auxiliary gas with a great inclination angle, provide a slant power for the slag of top and rush to in the slot, and under the pressure of the spun auxiliary gas in the overcoat nozzle, spout away from the slot that has accomplished the cutting, prevent effectively that the slag from launching into conical duct and scattering to the upper surface of being cut the material, improve the security of protective glass, and reduce the pollution of slag to being cut the material upper surface, improve the quality of cutting product.

2. Through the arrangement of the blocking baffle, the movable supporting plate and the pressurizing spring, the pressurizing is carried out in the outer sleeve nozzle, and after a certain pressure is reached, the blocking baffle is pushed to descend, then the auxiliary gas is jetted to the cut material from the gap between the blocking baffle and the outer sleeve nozzle to pressurize the auxiliary gas, ensure that the gas has enough pressure, ensure to blow away the slag, improve the slag blowing speed and further improve the cutting efficiency, and simultaneously, the height of the movable supporting plate can be adjusted by arranging the threaded rod, further compresses the pressurizing spring to increase the supporting force to the blocking baffle, ensures that the auxiliary gas can accumulate larger pressure on the upper part of the blocking baffle, presses the blocking baffle to descend and then releases, therefore, when thicker materials are cut, sufficient pressure is provided to blow away the slag, and the cutting efficiency is improved.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is a bottom view of the structure of the present invention;

FIG. 3 is a schematic view of the invention at A-A in FIG. 1;

FIG. 4 is a schematic view of the present invention at B-B in FIG. 1;

FIG. 5 is an enlarged view of the point C in FIG. 1.

In the figure: 1. fixing a sleeve; 2. a focusing lens; 3. protective glasses; 4. a tapered tube; 5. a fixed connecting frame; 6. sheathing a nozzle; 7. an annular connecting pipe; 8. an inclined nozzle; 9. a blocking baffle plate; 10. a movable support plate; 11. a pressurizing spring; 12. a threaded rod; 13. an air inlet pipe; 14. a material to be cut; 15. a motor; 16. a toothed ring; 17. an annular aperture; 18. an adjustable pressure valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, a laser cutting machine for processing hardware optical fiber comprises a fixed sleeve 1, a focusing lens 2, a protective lens 3, a cut material 14 and an air pump, wherein a conical tube 4 is fixedly installed on the bottom surface of the fixed sleeve 1, a fixed connecting frame 5 is fixedly sleeved on the top of the conical tube 4, the fixed connecting frame 5 is fixedly connected with the bottom surface of the fixed sleeve 1, an outer sleeve nozzle 6 is movably sleeved on the conical tube 4 and positioned below the fixed connecting frame 5, the top of the outer sleeve nozzle 6 is movably connected with the fixed connecting frame 5, the bottom surface of the fixed connecting frame 5 is movably connected with an annular connecting tube 7, the bottom surface of the annular connecting tube 7 is fixedly connected with an inclined nozzle 8, the right side of the outer sleeve nozzle 6 is fixedly connected with the inclined nozzle 8, a blocking baffle 9 is movably sleeved in the inner cavity of the outer sleeve nozzle 6, an annular channel is arranged inside the outer sleeve nozzle 6, the intake pipe 13 is fixedly communicated with an air pump through an air pipe, a motor 15 is fixedly mounted on the left side of the fixed connecting frame 5, a driving wheel is fixedly sleeved at the bottom end of a movable shaft of the motor 15, a toothed ring 16 is fixedly sleeved on the outer side of the annular connecting pipe 7, the motor 15 is meshed with the toothed ring 16, an annular hole 17 is formed in the bottom of the fixed connecting frame 5, and the annular hole 17 is communicated with the annular connecting pipe 7.

Wherein, the inner chamber of overcoat nozzle 6 and the below movable mounting who is located separation baffle 9 have a movable support plate 10, the even fixedly connected with pressure boost spring 11 in bottom of separation baffle 9, the bottom of pressure boost spring 11 and the last fixed surface of movable support plate 10 are connected, after auxiliary gas is inputed fixed connection frame 5 from intake pipe 13 by the air pump, get into overcoat nozzle 6 and annular connecting pipe 7 respectively in proper order, carry out the pressure boost in overcoat nozzle 6, after reaching certain pressure, support and push away separation baffle 9 and descend, make and appear the gap between separation baffle 9 and the overcoat nozzle 6, then auxiliary gas is cut material 14 through the directive from the gap, carry out the pressure boost for auxiliary gas, guarantee that gas has sufficient pressure, guarantee to blow away the slag.

Wherein, the even swing joint in bottom surface of adjustable support plate 10 has threaded rod 12, threaded

rod

12 and 6 threaded connection of overcoat nozzle, can adjust the height of adjustable support plate 10, and then compress pressure boost spring 11, make its increase to the holding power of separation baffle 9, guarantee then that supplementary gas can save behind bigger pressure on the upper portion of separation baffle 9, support and press separation baffle 9 to descend, release again, and then make when cutting thick material, have sufficient pressure and blow away the slag, improve cutting efficiency.

Wherein, the right-hand member of slant nozzle 8 just is located that junction fixed mounting has adjustable pressure valve 18 between annular connecting pipe 7 and the slant nozzle 8, guarantees that overcoat nozzle 6's pressure is sufficient, can support to push away separation baffle 9 and release, ensures that auxiliary gas can preferentially provide to overcoat nozzle 6 in, and release.

The inclined nozzle 8 and the slot are always in a symmetrical position with the outer sleeve nozzle 6 as the center, so that the auxiliary gas sprayed from the inclined nozzle 8 is sprayed out at a larger inclined angle, an inclined force is provided for the slag above to rush into the slot, and the slag is sprayed out from the slot after cutting under the pressure of the auxiliary gas sprayed from the outer sleeve nozzle 6, so that the slag is effectively prevented from being sprayed into the conical tube 4 and scattering to the upper surface of the cut material 14, the safety of the protective mirror 3 is improved, the pollution of the slag to the upper surface of the cut material 14 is reduced, and the quality of a cut product is improved.

The working principle is that after the auxiliary gas is input into the fixed connecting frame 5 from the gas inlet pipe 13 by the gas pump, the auxiliary gas respectively enters the outer sleeve nozzle 6 and the annular connecting pipe 7 in sequence, the pressure is increased in the outer sleeve nozzle 6, after a certain pressure is reached, the blocking baffle 9 is pushed to descend, so that a gap is formed between the blocking baffle 9 and the outer sleeve nozzle 6, then the auxiliary gas is emitted to the cut material 14 from the gap, then the optical fiber laser emits optical fibers to the focusing lens 2, the focusing lens 2 gathers the optical fibers into light beams, the light beams sequentially pass through the protective lens 3 and the conical pipe 4 and are focused on the cut material 14 to form high temperature, so that the local part of the cut material 14 is rapidly gasified, meanwhile, the auxiliary gas is obliquely sprayed out from the oblique nozzle 8 to provide an oblique force for the slag above to be rushed into the cutting gap, and under the pressure of the auxiliary gas sprayed out from the outer sleeve nozzle 6, the slag is sprayed out from the, meanwhile, the motor 15 drives the annular connecting pipe 7 to drive the inclined nozzle 8 to rotate through the transmission of the driving wheel and the toothed ring 16, so that the inclined nozzle 8 and the slot are always in symmetrical positions with the outer sleeve nozzle 6 as the center, when the thickness of the cut material 14 is increased, the threaded rod 12 is rotated to push the movable supporting plate 10 to ascend, the elasticity of the pressurizing spring 11 is increased, and the supporting force for the blocking baffle 9 is improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. 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

1. The utility model provides a five metals optical fiber processing laser cutting machine, includes fixed cover (1), focusing lens (2), protective glass (3), is cut material (14) and air pump, its characterized in that: the bottom surface fixed mounting of fixed cover (1) has conical tube (4), fixed link (5) have been cup jointed to the fixed connection on the top of conical tube (4), fixed link (5) and the bottom surface fixed connection of fixed cover (1), conical tube (4) are gone up and are located the below activity of fixed link (5) and have been cup jointed overcoat nozzle (6), the top and fixed link (5) swing joint of overcoat nozzle (6), the bottom surface swing joint of fixed link (5) has annular connecting pipe (7), the bottom surface fixed connection of annular connecting pipe (7) has slant nozzle (8), the right side and slant nozzle (8) fixed connection of overcoat nozzle (6), separation baffle (9) have been cup jointed in the inner chamber activity of overcoat nozzle (6), annular channel has been seted up to the inside of overcoat nozzle (6), the right side fixedly connected with intake pipe (13) of fixed connection frame (5), intake pipe (13) are through the fixed intercommunication of trachea and air pump, the left side fixed mounting of fixed connection frame (5) has motor (15), the fixed cover in bottom of motor (15) loose axle has the action wheel, the outside fixed cup joint ring gear (16) of annular connecting pipe (7), motor (15) and ring gear (16) meshing, annular hole (17) have been seted up to the bottom of fixed connection frame (5), annular hole (17) and annular connecting pipe (7) intercommunication.

2. The laser cutting machine for hardware optical fiber processing according to claim 1, characterized in that: the inner chamber of overcoat nozzle (6) and the below movable mounting that is located separation baffle (9) have movable support plate (10), the even fixedly connected with pressure boost spring (11) in bottom of separation baffle (9), the bottom of pressure boost spring (11) is connected with the last fixed surface of movable support plate (10).

3. The laser cutting machine for hardware optical fiber processing according to claim 1, characterized in that: the bottom surface of the movable supporting plate (10) is evenly and movably connected with a threaded rod (12), and the threaded rod (12) is in threaded connection with the outer sleeve nozzle (6).

4. The laser cutting machine for hardware optical fiber processing according to claim 1, characterized in that: and an adjustable pressure valve (18) is fixedly arranged at the right end of the inclined nozzle (8) and at the joint between the annular connecting pipe (7) and the inclined nozzle (8).

5. The laser cutting machine for hardware optical fiber processing according to claim 1, characterized in that: the inclined nozzle (8) and the cutting seam are always in symmetrical positions with the outer sleeve nozzle (6) as the center.