CN213794886U - Laser conduction vacuum tube device without laser energy attenuation - Google Patents
Laser conduction vacuum tube device without laser energy attenuation Download PDFInfo
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- CN213794886U CN213794886U CN202022276129.9U CN202022276129U CN213794886U CN 213794886 U CN213794886 U CN 213794886U CN 202022276129 U CN202022276129 U CN 202022276129U CN 213794886 U CN213794886 U CN 213794886U
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Abstract
The utility model relates to a laser energy does not have laser conduction vacuum tube device of decay, including the vacuum tube, the vacuum tube is both ends confined pipe shape, and the both ends face is perpendicular with the axial of pipe, the surface of the both ends face of vacuum tube all is plated with the antireflection coating, the one end of vacuum tube is provided with the laser cover, the laser cover passes through the magnetism holder with the vacuum tube and is connected, the magnetism holder is connected with vacuum tube magnetic adsorption, the laser cover is fixed on the rifle head of laser emission rifle, and laser passes the vacuum tube and jets out. The utility model discloses a realized the quick installation of laser conduction vacuum tube, adopted magnetism connected mode, the top of vacuum tube and the terminal zonulae occludens of laser emission rifle utilize supporting magnetism holder to fasten the vacuum tube at the rifle head front end of laser emission rifle.
Description
Technical Field
The utility model relates to a laser conduction vacuum tube device of laser energy non-attenuation belongs to laser conduction device's technical field.
Background
When the laser light propagates in the atmosphere, due to the existence of various gas molecules and particles in the atmosphere, such as dust, smoke, and weather changes such as wind, rain, snow, etc., part of the energy is scattered and deviates from the original propagation direction (i.e., the radiation energy is spatially redistributed), and part of the light radiation energy is absorbed and converted into other forms of energy (e.g., heat energy, etc.). The absorption attenuation of laser light by the atmosphere is mainly atmospheric molecular absorption and atmospheric aerosol absorption.
With the common use of laser in the material processing process, the processing technologies such as laser welding, laser cladding, laser additive manufacturing, laser cutting and the like are increasingly popular, but a large part of the energy of a laser beam is dissipated due to various reasons, for example, in the optical fiber laser deep fusion welding, plasma steam plume can generate attenuation effects such as absorption, refraction and scattering on the laser beam, and the energy distribution of the laser on the surface of a workpiece is changed, so that the forming and welding quality of a welding seam is influenced, and the attenuation condition is more obvious when the laser power is higher. In the laser deposition, laser material increase and laser cutting processes, the atmosphere can generate absorption and slow reflection effects on laser beams, and smoke dust generated in the deposition and cutting processes can also have attenuation effects on the energy of the laser beams.
Therefore, the research on a laser conduction device capable of reducing attenuation is called as a problem to be solved.
SUMMERY OF THE UTILITY MODEL
Based on present laser beam machining current situation, in order to solve above-mentioned technical problem, the utility model provides a laser energy does not have decay laser conduction vacuum tube adopts the mode of laser conduction vacuum tube, has reduced the decay phenomenon of laser beam in air and smoke and dust, has improved laser beam's utilization ratio, has improved laser beam machining efficiency, and its concrete technical scheme is as follows:
the laser conduction vacuum tube device without laser energy attenuation comprises a vacuum tube, wherein the vacuum tube is in a round tube shape with two closed ends, two end faces are perpendicular to the axial direction of the round tube, anti-reflection films are plated on the outer surfaces of the two end faces of the vacuum tube, a laser cover is arranged at one end of the vacuum tube and is connected with the vacuum tube through a magnetic clamping piece, the magnetic clamping piece is connected with the vacuum tube in a magnetic adsorption mode, the laser cover is fixed on a gun head of a laser emission gun, and laser penetrates through the vacuum tube to be emitted.
Furthermore, the laser cover is horn-shaped, the small opening end is fixed with the gun head of the laser emission gun, and the magnetic clamping piece is positioned inside the laser cover and close to one side of the large opening end.
Furthermore, the magnetic clamping piece is also in a horn shape, the large opening end is fixed with the inside of the laser cover, and the small opening end is fixed with one end of the vacuum tube.
Further, a sealing strip is fixed around an opening of the small-opening end of the magnetic clamping piece, the sealing strip is fixedly adhered to the magnetic clamping piece, and the sealing strip can be made of silica gel strips.
Furthermore, the sealing strip is in a multi-layer folded state, and the radial section of the sealing strip is W-shaped or sawtooth-shaped.
Furthermore, the inner wall of the laser cover is provided with a circle of insertion groove, the insertion groove inclines towards the vacuum tube, the inclination angle of the insertion groove is matched with the magnetic clamping piece, and the large opening end of the magnetic clamping piece is just inserted into the insertion groove.
Further, the osculum end of laser cover is provided with the connecting pipe of outside extension, the connecting pipe is provided with card protruding or the draw-in groove for internal thread pipe or inner wall, the connecting pipe is connected with the laser emission rifle.
The utility model has the advantages that:
the utility model discloses an adopt cavity pole vacuum quartz glass tube, simple structure, easy dismounting can swiftly install the laser head end to compact structure.
The utility model discloses an adopt high temperature resistant high printing opacity quartz glass pipe, inside is hollow structure, vacuum state, and the antireflection coating has been plated to the upper surface and the lower surface of pipe, and laser beam does not have the decay in the pipe transmission course to the antireflection coating can increase light permeability.
The utility model discloses an it is clear that no interference laser beam machining (welding, deposition, vibration material disk, cutting etc.), the diameter of the diameter ratio laser facula of laser conduction vacuum tube is 0.5-1mm big, do not propose higher requirement to the processing of work piece, so under the prerequisite that does not change the structure of original work piece, can the direct mount laser conduction vacuum tube, carry out laser beam machining, the end of vacuum tube is 2-6mm with the distance of test piece simultaneously, influence to the work piece is little, can get up laser beam protection, laser beam machining carries out that simultaneously can be fine again.
The utility model discloses a realized the quick installation of laser conduction vacuum tube, adopted magnetism connected mode, the top of vacuum tube and the terminal zonulae occludens of laser emission rifle utilize supporting magnetism holder to fasten the vacuum tube at the rifle head front end of laser emission rifle.
Drawings
Figure 1 is a perspective view of the present invention,
figure 2 is a front view of the present invention,
figure 3 is a longitudinal cross-sectional view of figure 2,
figure 4 is an enlarged view of a portion of the laser cover at C in figure 3,
FIG. 5 is an enlarged view of a portion of the magnetic clamp at B in FIG. 3
In the figure: the laser device comprises a laser cover, a magnetic clamping piece, a vacuum tube light inlet end, a vacuum tube light outlet end, a connecting tube, a splicing groove and a sealing strip, wherein the laser cover is 1, the magnetic clamping piece is 2, the vacuum tube light inlet end is 3, the vacuum tube light outlet end is 4, the vacuum tube light outlet end is 5, the connecting tube is 6, the splicing groove is 7, and the sealing strip is 8.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1-3, the laser energy non-attenuated laser conduction vacuum tube device of the present invention includes a circular tube shaped vacuum tube 4 with two closed ends, the two end faces are perpendicular to the axial direction of the circular tube, the outer surfaces of the two end faces of the vacuum tube 4 are both plated with anti-reflection films, and the anti-reflection films can increase the light transmittance. One end of the vacuum tube 4 is provided with a laser cover 1, the laser cover 1 is connected with the vacuum tube 4 through a magnetic clamping piece 2, the magnetic clamping piece 2 is connected with the vacuum tube 4 through magnetic adsorption, the laser cover 1 is fixed on a gun head of a laser emission gun, and laser penetrates through the vacuum tube 4 to be emitted. Inside vacuum environment that is of vacuum tube 4, after laser irradiation a period, can produce the consumption, cause the laser penetrability to reduce, so, vacuum tube 4 needs to be changed, this patent passes through magnetism holder 2 and connects vacuum tube 4, be convenient for change vacuum tube 4 operation, realize simple swift change, during the change, now with magnetism holder 2 from laser cover 1 pull-out, then extract vacuum tube 4 from magnetism holder 2, then, change new vacuum tube 4, insert magnetism holder 2 again in laser cover 1, magnetic adsorption alright.
Referring to fig. 3, when in use, laser is emitted from the laser cover 1 towards the vacuum tube 4, enters the vacuum tube 4 from the light inlet end 3 of the vacuum tube, and is emitted from the light outlet end 5 of the vacuum tube 4, and the laser welding piece is placed in front of or below the light outlet end 5 of the vacuum tube by a certain distance.
In order to adapt to the rapid relative installation of the laser cover 1 and the magnetic clamping piece 2, the laser cover 1 and the magnetic clamping piece 2 are both horn-shaped, the small opening end of the laser cover 1 is fixed with the gun head of a laser emission gun, and the magnetic clamping piece 2 is positioned inside the laser cover 1 and close to one side of the large opening end of the laser cover 1. The big opening end of the magnetic clamping piece 2 is fixed with the inside of the laser cover 1, and the small opening end of the magnetic clamping piece 2 is fixed with one end of the vacuum tube 4. Realize the relative grafting of big mouth end and fix.
In order to realize that the internal environment is sealed, prevent that dust, granule from getting into to influence laser penetrability, the opening of 2 osculums ends of magnetism holder is fixed with sealing strip 8 all around, sealing strip 8 and 2 sticky fixings of magnetism holder, the optional silica gel strip of sealing strip 8.
In order to give the sealing strip 8 a suitable deformation margin, to prevent tearing during mounting and dismounting of the vacuum tube 4, and to increase the sealing flexibility, the sealing strip 8 is in a multi-layer folded state, see fig. 5, with a W-shaped, or saw-tooth, radial cross-section. The sealing strip 8 has the space volume of being convenient for, when pegging graft and going up vacuum tube 4, the laminating surrounds at vacuum tube 4 outer wall.
In order to fix and stabilize the magnetic clamping piece 2, referring to fig. 4, the inner wall of the laser cover 1 is provided with a circle of insertion groove 7, the insertion groove 7 inclines towards the vacuum tube 4, the inclination angle of the insertion groove 7 is matched with the magnetic clamping piece 2, the large opening end of the magnetic clamping piece 2 is just inserted into the insertion groove 7, and the insertion groove 7 is made of iron and is convenient to be connected with the magnetic clamping piece 2 in an adsorption manner. At least the part of the magnetic clamping piece 2 inserted in the inserting groove 7 is a magnet.
In order to fix the laser cover 1 and the laser emission gun firmly, the small-mouth end of the laser cover 1 is provided with a connecting pipe 6 extending outwards, the connecting pipe 6 is a clamping convex or a clamping groove arranged on the inner wall of the internal thread pipe, and the connecting pipe 6 is connected with the laser emission gun.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (7)
1. A laser conduction vacuum tube device without laser energy attenuation is characterized in that: the laser tube comprises a vacuum tube (4), the vacuum tube is in a round tube shape with two closed ends, two end faces are perpendicular to the axial direction of the round tube, antireflection films are plated on the outer surfaces of the two end faces of the vacuum tube, a laser cover (1) is arranged at one end of the vacuum tube, the laser cover is connected with the vacuum tube through a magnetic clamping piece (2), the magnetic clamping piece is connected with the vacuum tube in a magnetic adsorption mode, the laser cover is fixed on a gun head of a laser emission gun, and laser penetrates through the vacuum tube (4) to be emitted.
2. The laser energy non-attenuating laser conduction vacuum tube device of claim 1, wherein: the laser cover (1) is horn-shaped, the small opening end is fixed with the gun head of the laser emission gun, and the magnetic clamping piece is positioned inside the laser cover and close to one side of the large opening end.
3. The laser energy non-attenuating laser conduction vacuum tube device of claim 1, wherein: the magnetic clamping piece (2) is also in a horn shape, the large opening end is fixed with the inside of the laser cover, and the small opening end is fixed with one end of the vacuum tube.
4. The laser energy non-attenuating laser conduction vacuum tube device of claim 1, wherein: and sealing strips (8) are fixed around the opening of the small opening end of the magnetic clamping piece (2).
5. The laser energy non-attenuating laser conduction vacuum tube device according to claim 4, characterized in that: the sealing strip (8) is in a multi-layer folded state, and the radial section of the sealing strip is W-shaped or sawtooth-shaped.
6. The laser energy non-attenuating laser conduction vacuum tube device of claim 2, wherein: the inner wall of the laser cover (1) is provided with a circle of insertion groove (7), the insertion groove (7) inclines towards the vacuum tube (4), the inclination angle of the insertion groove is matched with the magnetic clamping piece, and the large opening end of the magnetic clamping piece (2) is just inserted into the insertion groove (7).
7. The laser energy non-attenuating laser conduction vacuum tube device of claim 2, wherein: the osculum end of laser cover is provided with outside extension connecting pipe (6), connecting pipe (6) are provided with card protruding or draw-in groove for internal thread pipe or inner wall, the connecting pipe is connected with the laser emission rifle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022276129.9U CN213794886U (en) | 2020-10-13 | 2020-10-13 | Laser conduction vacuum tube device without laser energy attenuation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022276129.9U CN213794886U (en) | 2020-10-13 | 2020-10-13 | Laser conduction vacuum tube device without laser energy attenuation |
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| CN213794886U true CN213794886U (en) | 2021-07-27 |
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| CN202022276129.9U Active CN213794886U (en) | 2020-10-13 | 2020-10-13 | Laser conduction vacuum tube device without laser energy attenuation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113584297A (en) * | 2021-07-30 | 2021-11-02 | 山东大学 | Method for improving underwater femtosecond laser shock processing strength |
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2020
- 2020-10-13 CN CN202022276129.9U patent/CN213794886U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113584297A (en) * | 2021-07-30 | 2021-11-02 | 山东大学 | Method for improving underwater femtosecond laser shock processing strength |
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